Overview

During the nine months ended September 30, 2021, we:



•finished the period with our office and data center shell portfolio 93.3%
occupied and 94.6% leased;
•placed into service 709,000 square feet in six newly-developed office
properties that were 90.4% leased as of September 30, 2021;
•refinanced certain unsecured senior notes issuances with a new unsecured senior
note issuance by:
•issuing $600.0 million of 2.75% Notes at an initial offering price of 98.95% of
their face value on March 11, 2021. The proceeds from this issuance, after
deducting underwriting discounts but before other offering expenses, were
$589.8 million; and
•purchasing or redeeming $350.0 million of 3.60% Notes (52.7% of such notes
effective March 11, 2021 and the remaining notes on April 12, 2021) and $250.0
million of 5.25% Notes (58.2% of such notes effective March 11, 2021 and the
remaining notes on April 12, 2021) for $373.1 million and $282.4 million,
respectively, plus accrued interest. In connection with these purchases, we
recognized a loss on early extinguishment of debt in the nine months ended
September 30, 2021 of $58.4 million.
We used borrowings under our Revolving Credit Facility to fund the net cash
outlay resulting from this refinancing;
•issued $400.0 million of 2.00% Notes at an initial offering price of 99.97% of
their face value on August 11, 2021. The proceeds from this issuance, after
deducting underwriting discounts but before other offering expenses, were
$397.4 million. We used $100.0 million of the proceeds from this issuance to
repay a portion of our term loan facility, $89.0 million to pay off a
construction loan and most of the remaining proceeds to repay borrowings under
our Revolving Credit Facility; and
•sold a 90% interest in two data center shell properties in Northern Virginia on
June 2, 2021 based on an aggregate property value of $118.8 million and retained
a 10% interest in the properties through B RE COPT DC JV III LLC, a newly-formed
joint venture. Our partner in the joint venture acquired the 90% interest from
us for $106.9 million, which was used by us to repay borrowings under our
Revolving Credit Facility.

With regard to our operating portfolio square footage, occupancy and leasing
statistics included below and elsewhere in this Quarterly Report on Form 10-Q,
amounts disclosed include information pertaining to properties owned through
unconsolidated real estate joint ventures.

We discuss significant factors contributing to changes in our net income in the
section below entitled "Results of Operations." In addition, the section below
entitled "Liquidity and Capital Resources" includes discussions of, among other
things:

•how we expect to generate cash for short and long-term capital needs; and •our commitments and contingencies.

You should refer to our consolidated financial statements and the notes thereto as you read this section.



This section contains "forward-looking" statements, as defined in the Private
Securities Litigation Reform Act of 1995, that are based on our current
expectations, estimates and projections about future events and financial trends
affecting the financial condition and operations of our business.
Forward-looking statements can be identified by the use of words such as "may,"
"will," "should," "could," "believe," "anticipate," "expect," "estimate," "plan"
or other comparable terminology. Forward-looking statements are inherently
subject to risks and uncertainties, many of which we cannot predict with
accuracy and some of which we might not even anticipate. Although we believe
that the expectations, estimates and projections reflected in such
forward-looking statements are based on reasonable assumptions at the time made,
we can give no assurance that these expectations, estimates and projections will
be achieved. Future events and actual results may differ materially from those
discussed in the forward-looking statements. Important factors that may affect
these expectations, estimates and projections include, but are not limited to:

•general economic and business conditions, which will, among other things,
affect office property and data center demand and rents, tenant
creditworthiness, interest rates, financing availability, construction costs and
property values;
•adverse changes in the real estate markets, including, among other things,
increased competition with other companies;
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•risks and uncertainties regarding the impact of the COVID-19 pandemic, and
similar pandemics, along with restrictive measures instituted to prevent spread,
on our business, the real estate industry and national, regional and local
economic conditions;
•governmental actions and initiatives, including risks associated with the
impact of a prolonged government shutdown or budgetary reductions or impasses,
such as a reduction in rental revenues, non-renewal of leases and/or reduced or
delayed demand for additional space by our strategic customers;
•our ability to borrow on favorable terms;
•risks of real estate acquisition and development activities, including, among
other things, risks that development projects may not be completed on schedule,
that tenants may not take occupancy or pay rent or that development or operating
costs may be greater than anticipated;
•risks of investing through joint venture structures, including risks that our
joint venture partners may not fulfill their financial obligations as investors
or may take actions that are inconsistent with our objectives;
•changes in our plans for properties or views of market economic conditions or
failure to obtain development rights, either of which could result in
recognition of significant impairment losses;
•our ability to satisfy and operate effectively under Federal income tax rules
relating to real estate investment trusts and partnerships;
•possible adverse changes in tax laws;
•the dilutive effects of issuing additional common shares;
•our ability to achieve projected results;
•security breaches relating to cyber attacks, cyber intrusions or other factors;
and
•environmental requirements.

We undertake no obligation to publicly update or supplement forward-looking statements.

Effects of COVID-19



As of the date of this filing, spread of COVID-19 continues world- and
nation-wide. Since the beginning of the year, the United States has
significantly increased the proportion of the population that has received
COVID-19 vaccines, and there is increased confidence that spread of COVID-19
can, to a large extent, be contained through vaccinations and wearing masks
indoors in public. As a result, most restrictive measures previously instituted
to control spread have been gradually lifted and an increased proportion of the
population has resumed a return to normal activities. However, there continues
to be significant uncertainty regarding the duration and extent of the pandemic
due to factors such as the continuing spread of the virus, the pace of world-
and nation-wide vaccination efforts, the emergence of new variants of the virus
and the efficacy of vaccines against such variants.

While the pandemic has impacted the operations of much of the commercial real
estate industry, we believe that we have been less susceptible to such impact
due to our portfolio's significant concentration in Defense/IT Locations. As a
result, our results of operations were not significantly affected by the
pandemic. For the three and nine months ended September 30, 2021, our:

•Same Properties NOI from real estate operations increased relative to the
comparable 2020 periods by $2.7 million and $3.7 million, respectively, and was
only minimally affected by the pandemic-related effect of lower provisions for
collectability losses in the 2021 periods relative to the 2020 periods; and
•lease revenue collections were not significantly affected by the pandemic.
After agreeing to deferred payment arrangements for approximately $2.6 million
in lease receivables last year (most of which was repaid by June 30, 2021), we
did not agree to significant additional arrangements to date in 2021.

While we do not currently expect that the pandemic will significantly affect our
future results of operations, financial condition or cash flows, we believe that
the impact will be dependent on future developments, including the duration and
extent of the pandemic, the prevalence, strength and duration of restrictive
measures and the resulting effects on our tenants, potential future tenants, the
commercial real estate industry and the broader economy, all of which are
uncertain and difficult to predict. Nevertheless, we believe at this time that
there is more inherent risk associated with the operations of our Regional
Office properties than our Defense/IT Locations.

While we do not believe that our development leasing and ability to renew leases
scheduled to expire have been significantly affected by the pandemic, we do
believe that the impact of the restrictive measures and the economic uncertainty
caused by the pandemic has impacted our timing and volume of vacant space
leasing, and may continue to do so in the future, particularly for our Regional
Office properties.

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The pandemic enhances the risk of us being able to stay on pace to complete
development and begin operations on schedule due to the potential for delays
from: jurisdictional permitting and inspections; factories' ability to provide
materials; and possible labor shortages. These types of issues have not
significantly affected us to date but could in the future, depending on pandemic
related developments.

We do not expect that we will be required to incur significant additional capital expenditures on existing properties as a result of the pandemic.

Occupancy and Leasing

Office and Data Center Shell Portfolio

The tables below set forth occupancy information pertaining to our portfolio of office and data center shell properties:


                                                             September 30, 2021         December 31, 2020
Occupancy rates at period end
Total                                                                    93.3  %                   94.1  %
Defense/IT Locations:
Fort Meade/BW Corridor                                                   90.4  %                   91.0  %
Northern Virginia Defense/IT                                             88.8  %                   88.1  %
Lackland Air Force Base                                                 100.0  %                  100.0  %
Navy Support Locations                                                   96.5  %                   97.2  %
Redstone Arsenal                                                         99.3  %                   99.4  %
Data Center Shells                                                      100.0  %                  100.0  %
Total Defense/IT Locations                                               94.1  %                   94.5  %
Regional Office                                                          87.8  %                   92.5  %
Other                                                                    66.2  %                   68.4  %
Average contractual annual rental rate per square foot at
period end (1)                                              $           32.38          $          31.50


(1)Includes estimated expense reimbursements.


                                       Rentable          Occupied
                                     Square Feet       Square Feet
                                             (in thousands)
December 31, 2020                     20,959            19,722
Vacated upon lease expiration (1)          -              (524)
Occupancy for new leases                   -               387
Developed or redeveloped                 709               628

Other changes                             (8)                -
September 30, 2021                    21,660            20,213


(1)Includes lease terminations and space reductions occurring in connection with lease renewals.



During the nine months ended September 30, 2021, we completed 2.7 million square
feet of leasing, including: renewed leases on 1.4 million square feet,
representing 74.6% of the square footage of our lease expirations (including the
effect of early renewals); 420,000 square feet of vacant space; and
915,000 square feet of development space.

Wholesale Data Center



Our 19.25 megawatt wholesale data center was 86.7% leased as of September 30,
2021 and December 31, 2020. An 11.25 megawatt lease that expired in August 2020
remains in place until renewed by both parties or terminated by either party.
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Results of Operations



We evaluate the operating performance of our properties using NOI from real
estate operations, our segment performance measure, which includes: real estate
revenues and property operating expenses; and the net of revenues and property
operating expenses of real estate operations owned through unconsolidated real
estate joint ventures ("UJVs") that is allocable to our ownership interest ("UJV
NOI allocable to COPT").  We view our NOI from real estate operations as
comprising the following primary categories:

•office and data center shell properties:
•stably owned and 100% operational throughout the current and prior year
reporting periods being compared.  We define these as changes from "Same
Properties";
•developed or redeveloped and placed into service that were not 100% operational
throughout the current and prior year reporting periods; and
•disposed; and
•our wholesale data center.

In addition to owning properties, we provide construction management and other
services. The primary manner in which we evaluate the operating performance of
our construction management and other service activities is through a measure we
define as NOI from service operations, which is based on the net of the revenues
and expenses from these activities.  The revenues and expenses from these
activities consist primarily of subcontracted costs that are reimbursed to us by
customers along with a management fee.  The operating margins from these
activities are small relative to the revenue.  We believe NOI from service
operations is a useful measure in assessing both our level of activity and our
profitability in conducting such operations.

Since both of the measures discussed above exclude certain items includable in
net income, reliance on these measures has limitations; management compensates
for these limitations by using the measures simply as supplemental measures that
are considered alongside other GAAP and non-GAAP measures. A reconciliation of
NOI from real estate operations and NOI from service operations to net income
reported on our consolidated statements of operations is provided in Note 14 to
our consolidated financial statements.

Comparison of Statements of Operations for the Three Months Ended September 30, 2021 and 2020

For the Three Months Ended September 30,


                                                                         2021                  2020            Variance
                                                                                      (in thousands)
Revenues
Revenues from real estate operations                              $       146,590          $ 134,443          $ 12,147
Construction contract and other service revenues                           28,046             20,323             7,723
Total revenues                                                            174,636            154,766            19,870
Operating expenses
Property operating expenses                                                57,190             51,552             5,638

Depreciation and amortization associated with real estate operations

                                                                 36,611             35,332             1,279
Construction contract and other service expenses                           27,089             19,220             7,869
Impairment losses                                                               -              1,530            (1,530)
General, administrative and leasing expenses                                9,342              7,467             1,875
Business development expenses and land carry costs                          1,093              1,094                (1)
Total operating expenses                                                  131,325            116,195            15,130
Interest expense                                                          (15,720)           (17,152)            1,432
Interest and other income                                                   1,818              1,746                72
Credit loss recoveries                                                        326              1,465            (1,139)
Gain on sales of real estate                                                  (32)                 -               (32)
Loss on early extinguishment of debt                                       (1,159)            (3,237)            2,078
Loss on interest rate derivatives                                               -            (53,196)           53,196
Equity in income of unconsolidated entities                                   297                477              (180)
Income tax expense                                                            (47)               (16)              (31)
Net income (loss)                                                 $        28,794          $ (31,342)         $ 60,136



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NOI from Real Estate Operations

For the Three Months Ended September 30,


                                                                  2021                                2020             Variance
                                                                   (Dollars in thousands, except per square foot data)
Revenues
Same Properties revenues
Lease revenue, excluding net lease termination revenue
and provision for collectability losses                  $         123,331                        $ 119,782          $  3,549
Lease termination revenue, net                                         853                              455               398

Provision for collectability losses included in lease revenue

                                                                  1                             (412)              413
Other property revenue                                                 808                              573               235
Same Properties total revenues                                     124,993                          120,398             4,595
Developed and redeveloped properties placed in service              12,937                            4,930             8,007

Wholesale data center                                                8,637                            6,068             2,569

Dispositions                                                          (154)                           3,047            (3,201)
Other                                                                  177                                -               177
                                                                   146,590                          134,443            12,147
Property operating expenses
Same Properties                                                    (48,769)                         (46,856)           (1,913)
Developed and redeveloped properties placed in service              (2,945)                            (726)           (2,219)

Wholesale data center                                               (5,345)                          (3,642)           (1,703)

Dispositions                                                           (44)                            (326)              282
Other                                                                  (87)                              (2)              (85)
                                                                   (57,190)                         (51,552)           (5,638)

UJV NOI allocable to COPT
Same Properties                                                        504                              504                 -
Retained interest in newly-formed UJVs                                 575                                -               575
Dispositions                                                           (19)                           1,248            (1,267)
                                                                     1,060                            1,752              (692)

NOI from real estate operations
Same Properties                                                     76,728                           74,046             2,682
Developed and redeveloped properties placed in service               9,992                            4,204             5,788

Wholesale data center                                                3,292                            2,426               866

Dispositions, net of retained interest in newly-formed
UJVs                                                                   358                            3,969            (3,611)
Other                                                                   90                               (2)               92
                                                         $          90,460                        $  84,643          $  5,817

Same Properties NOI from real estate operations by segment Defense/IT Locations

                                     $          68,664                        $  66,459          $  2,205
Regional Office                                                      7,739                            7,131               608
Other                                                                  325                              456              (131)
                                                         $          76,728                        $  74,046          $  2,682

Same Properties rent statistics
Average occupancy rate                                                92.0  %                          92.8  %           (0.8  %)
Average straight-line rent per occupied square foot (1)  $            6.59                        $    6.49          $   0.10

(1)Includes minimum base rents, net of abatements, and lease incentives on a straight-line basis for the periods set forth above.

Our Same Properties pool consisted of 159 properties, comprising 80.2% of our office and data center shell portfolio's square footage as of September 30, 2021. This pool of properties changed from the pool used for purposes of comparing 2020 and 2019 in our 2020 Annual Report on Form 10-K due to the: addition of eight properties placed in service and 100%


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operational on or before January 1, 2020 and nine properties owned through an
unconsolidated real estate joint venture that was formed in 2019; and removal of
two properties in which we sold a 90% interest.

Regarding the changes in NOI from real estate operations reported above:



•the increase for our Same Properties pool was due primarily to higher rent per
occupied square foot in the current period due to an increase in rental rates
(mostly from leases of renewed or previously-vacant space), offset in part by
lower occupancy in the current period;
•developed and redeveloped properties placed in service reflects the effect of
17 properties placed in service in 2020 and 2021; and
•dispositions, net of retained interest in newly-formed UJVs reflects the effect
of our decrease in ownership of eight data center shells in 2020 and two in
2021.

NOI from Service Operations


                                                                 For the 

Three Months Ended September 30,


                                                                2021                  2020             Variance
                                                                              (in thousands)
Construction contract and other service revenues         $        28,046          $  20,323          $    7,723
Construction contract and other service expenses                 (27,089)           (19,220)             (7,869)
NOI from service operations                              $           957          $   1,103          $     (146)

Construction contract and other service revenue and expenses increased due primarily to a higher volume of construction activity in connection with several of our tenants. Construction contract activity is inherently subject to significant variability depending on the volume and nature of projects undertaken by us primarily on behalf of tenants. Service operations are an ancillary component of our overall operations that typically contribute an insignificant amount of income relative to our real estate operations.

General, administrative and leasing expenses

General, administrative and leasing expenses increased in large part due to higher compensation related expenses in the current period.

Loss on extinguishment of debt



The loss on early extinguishment of debt in the current period was attributable
to our repayment of $100.0 million of our term loan facility and payoff of a
construction loan. The loss on early extinguishment of debt in the prior period
was attributable to our purchase of 3.70% Senior Notes due 2021.

Loss on interest rate derivatives

We recognized a loss in the prior period on interest rate swaps previously designated as cash flow hedges of interest expense on forecasted future borrowings that we determined would probably not occur.


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Comparison of Statements of Operations for the Nine Months Ended September 30, 2021 and 2020



                                                                   For the 

Nine Months Ended September 30,


                                                                 2021                  2020             Variance
                                                                                (in thousands)
Revenues
Revenues from real estate operations                       $      436,177          $ 399,097          $   37,080
Construction contract and other service revenues                   64,592             46,240              18,352
Total revenues                                                    500,769            445,337              55,432
Operating expenses
Property operating expenses                                       168,780            151,755              17,025

Depreciation and amortization associated with real estate operations

                                                        111,487            101,540               9,947
Construction contract and other service expenses                   61,964             44,052              17,912
Impairment losses                                                       -              1,530              (1,530)
General, administrative and leasing expenses                       26,970             23,111               3,859
Business development expenses and land carry costs                  3,559              3,474                  85
Total operating expenses                                          372,760            325,462              47,298
Interest expense                                                  (49,181)           (50,789)              1,608
Interest and other income                                           5,911              5,233                 678
Credit loss recoveries                                              1,040                161                 879
Gain on sales of real estate                                       39,711                  5              39,706
Loss on early extinguishment of debt                              (59,553)            (3,237)            (56,316)
Loss on interest rate derivatives                                       -            (53,196)             53,196
Equity in income of unconsolidated entities                           779              1,372                (593)
Income tax expense                                                   (103)               (95)                 (8)
Net income                                                 $       66,613          $  19,329          $   47,284



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NOI from Real Estate Operations


                                                                        For 

the Nine Months Ended September 30,


                                                                 2021                               2020             Variance
                                                                  (Dollars in thousands, except per square foot data)
Revenues
Same Properties revenues
Lease revenue, excluding lease termination revenue and
provision for collectability losses                      $        367,002                       $ 361,032          $  5,970
Lease termination revenue, net                                      3,309                             693             2,616

Provision for collectability losses included in lease revenue

                                                              (118)                         (1,894)            1,776
Other property revenue                                              2,047                           2,060               (13)
Same Properties total revenues                                    372,240                         361,891            10,349
Developed and redeveloped properties placed in service             35,902                           8,410            27,492

Wholesale data center                                              24,902                          19,695             5,207

Dispositions                                                        2,691                           9,097            (6,406)
Other                                                                 442                               4               438
                                                                  436,177                         399,097            37,080
Property operating expenses
Same Properties                                                  (145,830)                       (139,209)           (6,621)
Developed and redeveloped properties placed in service             (7,795)                         (1,246)           (6,549)

Wholesale data center                                             (14,395)                        (10,338)           (4,057)

Dispositions                                                         (477)                           (952)              475
Other                                                                (283)                            (10)             (273)
                                                                 (168,780)                       (151,755)          (17,025)

UJV NOI allocable to COPT
Same Properties                                                     1,506                           1,515                (9)
Retained interest in newly-formed UJVs                              1,463                               -             1,463
Dispositions                                                          (19)                          3,675            (3,694)
                                                                    2,950                           5,190            (2,240)

NOI from real estate operations
Same Properties                                                   227,916                         224,197             3,719
Developed and redeveloped properties placed in service             28,107                           7,164            20,943

Wholesale data center                                              10,507                           9,357             1,150

Dispositions, net of retained interest in newly-formed
UJVs                                                                3,658                          11,820            (8,162)
Other                                                                 159                              (6)              165
                                                         $        270,347                       $ 252,532          $ 17,815

Same Properties NOI from real estate operations by segment Defense/IT Locations

$        203,232                       $ 199,577          $  3,655
Regional Office                                                    23,674                          23,328               346
Other                                                               1,010                           1,292              (282)
                                                         $        227,916                       $ 224,197          $  3,719

Same Properties rent statistics
Average occupancy rate                                               92.4  %                         92.7  %           (0.3  %)

Average straight-line rent per occupied square foot (1) $ 19.62

$   19.42          $   0.20

(1)Includes minimum base rents, net of abatements, and lease incentives on a straight-line basis for the periods set forth above.

Regarding the changes in NOI from real estate operations reported above:



•the increase for our Same Properties pool was due primarily to: higher rent per
occupied square foot in the current period due to an increase in rental rates
(mostly from leases of renewed or previously-vacant space); and higher lease
termination
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revenues and lower provisions for collectability losses in the current period;
offset in part by higher snow removal costs in the current period;
•developed and redeveloped properties placed in service reflects the effect of
17 properties placed in service in 2020 and 2021; and
•dispositions, net of retained interest in newly-formed UJVs reflects the effect
of our decrease in ownership of eight data center shells in 2020 and two in
2021.

NOI from Service Operations


                                                                 For the 

Nine Months Ended September 30,


                                                               2021                  2020             Variance
                                                                             (in thousands)
Construction contract and other service revenues         $       64,592          $  46,240          $  18,352
Construction contract and other service expenses                (61,964)           (44,052)           (17,912)
NOI from service operations                              $        2,628          $   2,188          $     440

Construction contract and other service revenue and expenses increased due primarily to a higher volume of construction activity in connection with several of our tenants.

Depreciation and amortization associated with real estate operations

The increase in depreciation and amortization associated with real estate operations was mostly attributable to newly-developed properties placed in service.

General, administrative and leasing expenses

General, administrative and leasing expenses increased in large part due to higher compensation related expenses in the current period.

Gain on sales of real estate

The gain on sales of real estate was due to our sale of a 90% interest in two data center shell properties in the current period.

Loss on extinguishment of debt



The loss on early extinguishment of debt in the current period was attributable
to our purchase and redemption of 3.60% Notes and 5.25% Notes, repayment of
$100.0 million of our term loan facility and payoff of a construction loan. The
loss on early extinguishment of debt in the prior period was attributable to our
purchase of 3.70% Senior Notes due 2021.

Loss on interest rate derivatives

Refer to our explanation above for the three-month periods.

Funds from Operations



Funds from operations ("FFO") is defined as net income computed using GAAP,
excluding gains on sales and impairment losses of real estate (net of associated
income tax) and real estate-related depreciation and amortization. FFO also
includes adjustments to net income for the effects of the items noted above
pertaining to UJVs that were allocable to our ownership interest in the UJVs. We
believe that we use the National Association of Real Estate Investment Trusts
("Nareit") definition of FFO, although others may interpret the definition
differently and, accordingly, our presentation of FFO may differ from those of
other REITs.  We believe that FFO is useful to management and investors as a
supplemental measure of operating performance because, by excluding gains on
sales and impairment losses of real estate and investments in unconsolidated
real estate joint ventures (net of associated income tax), and real
estate-related depreciation and amortization, FFO can help one compare our
operating performance between periods.  In addition, since most equity REITs
provide FFO information to the investment community, we believe that FFO is
useful to investors as a supplemental measure for comparing our results to those
of other equity REITs.  We believe that net income is the most directly
comparable GAAP measure to FFO.

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Since FFO excludes certain items includable in net income, reliance on the
measure has limitations; management compensates for these limitations by using
the measure simply as a supplemental measure that is weighed in balance with
other GAAP and non-GAAP measures. FFO is not necessarily an indication of our
cash flow available to fund cash needs.  Additionally, it should not be used as
an alternative to net income when evaluating our financial performance or to
cash flow from operating, investing and financing activities when evaluating our
liquidity or ability to make cash distributions or pay debt service.

Basic FFO available to common share and common unit holders ("Basic FFO") is FFO
adjusted to subtract (1) preferred share dividends, (2) income attributable to
noncontrolling interests through ownership of preferred units in the Operating
Partnership or interests in other consolidated entities not owned by us,
(3) depreciation and amortization allocable to noncontrolling interests in other
consolidated entities and (4) Basic FFO allocable to share-based compensation
awards.  With these adjustments, Basic FFO represents FFO available to common
shareholders and common unitholders.  Common units in the Operating Partnership
are substantially similar to our common shares and are exchangeable into common
shares, subject to certain conditions.  We believe that Basic FFO is useful to
investors due to the close correlation of common units to common shares.  We
believe that net income is the most directly comparable GAAP measure to Basic
FFO.  Basic FFO has essentially the same limitations as FFO; management
compensates for these limitations in essentially the same manner as described
above for FFO.

Diluted FFO available to common share and common unit holders ("Diluted FFO") is
Basic FFO adjusted to add back any changes in Basic FFO that would result from
the assumed conversion of securities that are convertible or exchangeable into
common shares.  We believe that Diluted FFO is useful to investors because it is
the numerator used to compute Diluted FFO per share, discussed below.  We
believe that net income is the most directly comparable GAAP measure to Diluted
FFO.  Since Diluted FFO excludes certain items includable in the numerator to
diluted EPS, reliance on the measure has limitations; management compensates for
these limitations by using the measure simply as a supplemental measure that is
weighed in the balance with other GAAP and non-GAAP measures.  Diluted FFO is
not necessarily an indication of our cash flow available to fund cash needs.
Additionally, it should not be used as an alternative to net income when
evaluating our financial performance or to cash flow from operating, investing
and financing activities when evaluating our liquidity or ability to make cash
distributions or pay debt service.

Diluted FFO available to common share and common unit holders, as adjusted for
comparability is defined as Diluted FFO adjusted to exclude: operating property
acquisition costs; gain or loss on early extinguishment of debt; FFO associated
with properties securing non-recourse debt on which we have defaulted and which
we have extinguished, or expect to extinguish, via conveyance of such
properties, including property NOI, interest expense and gains on debt
extinguishment (discussed further below); loss on interest rate derivatives;
demolition costs on redevelopment and nonrecurring improvements; executive
transition costs; issuance costs associated with redeemed preferred shares;
allocations of FFO to holders on noncontrolling interests resulting from capital
events; and certain other expenses that we believe are not closely correlated
with our operating performance.  This measure also includes adjustments for the
effects of the items noted above pertaining to UJVs that were allocable to our
ownership interest in the UJVs. We believe this to be a useful supplemental
measure alongside Diluted FFO as it excludes gains and losses from certain
investing and financing activities and certain other items that we believe are
not closely correlated to (or associated with) our operating performance. We
believe that net income is the most directly comparable GAAP measure to this
non-GAAP measure.  This measure has essentially the same limitations as Diluted
FFO, as well as the further limitation of not reflecting the effects of the
excluded items; we compensate for these limitations in essentially the same
manner as described above for Diluted FFO.

Diluted FFO per share is (1) Diluted FFO divided by (2) the sum of the
(a) weighted average common shares outstanding during a period, (b) weighted
average common units outstanding during a period and (c) weighted average number
of potential additional common shares that would have been outstanding during a
period if other securities that are convertible or exchangeable into common
shares were converted or exchanged.  We believe that Diluted FFO per share is
useful to investors because it provides investors with a further context for
evaluating our FFO results in the same manner that investors use earnings per
share ("EPS") in evaluating net income available to common shareholders.  In
addition, since most equity REITs provide Diluted FFO per share information to
the investment community, we believe that Diluted FFO per share is a useful
supplemental measure for comparing us to other equity REITs. We believe that
diluted EPS is the most directly comparable GAAP measure to Diluted FFO per
share. Diluted FFO per share has most of the same limitations as Diluted FFO
(described above); management compensates for these limitations in essentially
the same manner as described above for Diluted FFO.

Diluted FFO per share, as adjusted for comparability is (1) Diluted FFO, as
adjusted for comparability divided by (2) the sum of the (a) weighted average
common shares outstanding during a period, (b) weighted average common units
outstanding during a period and (c) weighted average number of potential
additional common shares that would have been outstanding during a period if
other securities that are convertible or exchangeable into common shares were
converted or exchanged.  We
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believe that this measure is useful to investors because it provides investors
with a further context for evaluating our FFO results.  We believe this to be a
useful supplemental measure alongside Diluted FFO per share as it excludes gains
and losses from certain investing and financing activities and certain other
items that we believe are not closely correlated to (or associated with) our
operating performance. We believe that diluted EPS is the most directly
comparable GAAP measure to this per share measure.  This measure has most of the
same limitations as Diluted FFO (described above) as well as the further
limitation of not reflecting the effects of the excluded items; we compensate
for these limitations in essentially the same manner as described above for
Diluted FFO.

The computations for all of the above measures on a diluted basis assume the
conversion of common units in COPLP but do not assume the conversion of other
securities that are convertible into common shares if the conversion of those
securities would increase per share measures in a given period.

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The table below sets forth the computation of the above stated measures, and
provides reconciliations to our GAAP measures associated with such measures:
                                                                For the Three Months Ended              For the Nine Months Ended
                                                                      September 30,                           September 30,
                                                                 2021                2020                2021                2020
                                                                    

(Dollars and shares in thousands, except per share data) Net income (loss)

$   28,794

$ (31,342) $ 66,613 $ 19,329 Real estate-related depreciation and amortization

                36,611             35,332              111,487            101,540
Depreciation and amortization on UJVs allocable to COPT             525                819                1,455              2,455
Impairment losses on real estate                                      -              1,530                    -              1,530
Gain on sales of real estate                                         32                  -              (39,711)                (5)
FFO                                                              65,962              6,339              139,844            124,849
FFO allocable to other noncontrolling interests                  (1,696)            (1,074)              (4,025)           (14,614)
Basic FFO allocable to share-based compensation awards             (313)              (119)                (663)              (449)

Noncontrolling interests-preferred units in the Operating Partnership

                                                           -                (77)                   -               (231)

Basic FFO available to common share and common unit holders 63,953

          5,069              135,156            109,555

Redeemable noncontrolling interests                                 (68)                 -                    1                103
Diluted FFO adjustments allocable to share-based
compensation awards                                                  13                  -                   27                  -

Diluted FFO available to common share and common unit holders

                                                          63,898              5,069              135,184            109,658
Loss on interest rate derivatives                                     -             53,196                    -             53,196

Loss on early extinguishment of debt                              1,159              3,237               59,553              3,237

Demolition costs on redevelopment and nonrecurring improvements

                                                        129                 11                  431                 63

Diluted FFO comparability adjustments for redeemable noncontrolling interests

                                              -                 34                    -                  -

Diluted FFO comparability adjustments allocable to share-based compensation awards

                                      (7)              (139)                (300)              (307)
Dilutive preferred units in the Operating Partnership                 -                 77                    -                231

FFO allocation to other noncontrolling interests resulting from capital event

                                                    -                  -                    -             11,090

Diluted FFO available to common share and common unit holders, as adjusted for comparability

$   65,179

$ 61,485 $ 194,868 $ 177,168



Weighted average common shares                                  111,985            111,811              111,949            111,778
Conversion of weighted average common units                       1,262              1,240                1,257              1,235

Weighted average common shares/units - Basic FFO per share 113,247

        113,051              113,206            113,013
Dilutive effect of share-based compensation awards                  375                274                  311                278

Redeemable noncontrolling interests                                 138                  -                  130                125

Weighted average common shares/units - Diluted FFO per share 113,760

        113,325              113,647            113,416
Redeemable noncontrolling interests                                   -                109                    -                  -
Dilutive convertible preferred units                                  -                176                    -                176

Weighted average common shares/units - Diluted FFO per share, as adjusted for comparability

                            113,760            113,610              113,647            113,592

Diluted FFO per share                                        $     0.56

$ 0.04 $ 1.19 $ 0.97 Diluted FFO per share, as adjusted for comparability $ 0.57

$ 0.54 $ 1.71 $ 1.56



Denominator for diluted EPS                                     112,498            111,811              112,364            112,056
Weighted average common units                                     1,262              1,240                1,257              1,235
Redeemable noncontrolling interests                                   -                  -                    -                125

Anti-dilutive EPS effect of share-based compensation awards           -                274                   26                  -
Denominator for diluted FFO per share                           113,760            113,325              113,647            113,416
Redeemable noncontrolling interests                                   -                109                    -                  -
Dilutive convertible preferred units                                  -                176                    -                176
Denominator for diluted FFO per share, as adjusted for
comparability                                                   113,760            113,610              113,647            113,592



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Property Additions

The table below sets forth the major components of our additions to properties for the nine months ended September 30, 2021 (in thousands): Development

$ 195,825

Tenant improvements on operating properties (1) 16,665 Capital improvements on operating properties 18,191

$ 230,681

(1)Tenant improvement costs incurred on newly-developed properties are classified in this table as development and redevelopment.

Cash Flows



Net cash flow from operating activities increased $40.9 million when comparing
the nine months ended September 30, 2021 and 2020 due primarily to an increase
in cash flow from real estate operations resulting from the growth of our
property portfolio and an increase associated with the timing of cash flow from
third-party construction projects.

Net cash flow used in investing activities decreased $284.2 million when
comparing the nine months ended September 30, 2021 and 2020 due primarily to our
receipt of $114.1 million in property disposition proceeds in 2021 mostly from
our sale of a 90% interest in two data center shells, a $107.9 million decrease
in cash outlays for development and redevelopment of properties and the effect
of $53.1 million paid in the prior period to cash settle interest rate swaps.

Net cash flow used in financing activities in the nine months ended
September 30, 2021 was $91.8 million, and included dividends to common
shareholders of $92.6 million. Net proceeds from debt borrowings during the
period totaled $11.2 million, which included the net effect of our purchase and
redemption of 3.60% Notes and 5.25% Notes (and related early extinguishment
costs), issuance of 2.75% Notes and 2.00% Notes and the repayment of a portion
of our term loan facility and payoff of a construction loan (and related early
extinguishment costs).

Net cash flow provided by financing activities in the nine months ended September 30, 2020 was $233.7 million, and included the following:

•net proceeds from debt borrowings of $345.3 million, which included the net increase from our issuance of 2.25% Notes and purchase of 3.70% Notes (and related early extinguishment costs); offset in part by •dividends to common shareholders of $92.5 million.

Supplemental Guarantor Information



As of September 30, 2021, COPLP had several series of unsecured senior notes
outstanding that were issued in transactions registered with the SEC under the
Securities Act of 1933, as amended. These notes are COPLP's direct, senior
unsecured and unsubordinated obligations and rank equally in right of payment
with all of COPLP's existing and future senior unsecured and unsubordinated
indebtedness. However, these notes are effectively subordinated in right of
payment to COPLP's existing and future secured indebtedness. The notes are also
effectively subordinated in right of payment to all existing and future
liabilities and other indebtedness, whether secured or unsecured, of COPLP's
subsidiaries. COPT fully and unconditionally guarantees COPLP's obligations
under these notes. COPT's guarantees of these notes are senior unsecured
obligations that rank equally in right of payment with other senior unsecured
obligations of, or guarantees by, COPT. COPT itself does not hold any
indebtedness, and its only material asset is its investment in COPLP.

In March 2020, the SEC adopted amendments to Rule 3-10 of Regulation S-X and
adopted Rule 13-01 of Regulation S-X to simplify disclosure requirements related
to certain registered securities that became effective on January 4, 2021. As a
result of these amendments, subsidiary issuers of obligations guaranteed by the
parent are not required to provide separate financial statements, provided that
the subsidiary obligor is consolidated into the parent company's consolidated
financial statements, the parent guarantee is "full and unconditional" and the
alternative disclosure required by Rule 13-01 is provided, which includes
narrative disclosure and, subject to certain exceptions, summarized financial
information. Accordingly, we no longer present separate consolidated financial
statements for the Operating Partnership. Furthermore, as permitted under Rule
13-01(a)(4)(vi), we have excluded summarized financial information for the
Operating Partnership since: the assets, liabilities, and results of operations
of the Company and the Operating Partnership are not materially different than
the corresponding amounts presented in the consolidated financial statements of
the Company; and we believe that inclusion of such summarized financial
information would be repetitive and not provide incremental value to investors.
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Liquidity and Capital Resources



Our primary cash requirements are for operating expenses, debt service,
development of new properties, improvements to existing properties and dividends
to our shareholders.  We expect to continue to use cash flow provided by
operations as the primary source to meet our short-term capital needs, including
property operating expenses, general and administrative expenses, interest
expense, scheduled principal amortization of debt, dividends to our
shareholders, distributions to COPLP's unitholders and improvements to existing
properties.  As of September 30, 2021, we had $14.6 million in cash and cash
equivalents.

Our senior unsecured debt is currently rated investment grade by the three major
rating agencies. We aim to maintain an investment grade rating to enable us to
use debt comprised of unsecured, primarily fixed-rate debt (including the effect
of interest rate swaps) from public markets and banks. We also use secured
nonrecourse debt from institutional lenders and banks primarily for joint
venture financings. In addition, we periodically raise equity when we access the
public equity markets by issuing common and/or preferred shares.

We use our Revolving Credit Facility to initially finance much of our investing
activities.  We subsequently pay down the facility using cash available from
operations and proceeds from long-term borrowings, equity issuances and sales of
interests in properties. The lenders' aggregate commitment under the facility
is $800.0 million, with the ability for us to increase the lenders' aggregate
commitment to $1.25 billion, provided that there is no default under the
facility and subject to the approval of the lenders. The facility matures in
March 2023, and may be extended by two six-month periods at our option, provided
that there is no default under the facility and we pay an extension fee
of 0.075% of the total availability under the facility for each extension
period. As of September 30, 2021, the maximum borrowing capacity under this
facility totaled $800.0 million, of which $790.0 million was available.

We have a program in place under which we may offer and sell common shares in
at-the-market stock offerings having an aggregate gross sales price of up to
$300 million. Under this program, we may also, at our discretion, sell common
shares under forward equity sales agreements. The use of a forward equity sales
agreement would enable us to lock in a price on a sale of common shares when the
agreement is executed but defer receiving the proceeds from the sale until a
later date.

We believe that our liquidity and capital resources are adequate for our
near-term and longer-term requirements without necessitating property sales.
However, we may dispose of interests in properties opportunistically or when
market conditions otherwise warrant. In addition, we believe that we have the
ability to raise additional equity by selling interests in data center shells
through joint ventures.

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Our contractual obligations as of September 30, 2021 included the following (in thousands):


                                                                      For 

the Periods Ending December 31,


                                      2021               2022               2023              2024               2025             Thereafter             Total
Contractual obligations (1)
Debt (2)
Balloon payments due upon
maturity                          $       -          $ 300,000          $ 

73,578 $ 27,649 $ 322,100 $ 1,445,623 $ 2,168,950 Scheduled principal payments (3) 1,045

              4,498              3,552             2,334              1,617                  677               13,723
Interest on debt (3)(4)              14,562             57,963             52,759            51,009             42,665              114,185              333,143
Development obligations (5)(6)       77,621            161,023             46,081                 -                  -                    -            

284,725


Third-party construction cost
obligations (6)(7)                   26,773            100,000                  -                 -                  -                    -              126,773
Tenant and other building
improvements (3)(6)                  13,811             22,465             33,203                 -                  -                    -               69,479
Property finance leases
(principal and interest) (3)              -                 14                  -                 -                  -                    -            

14


Property operating leases (3)           807              3,297              3,352             3,403              1,749              123,979              136,587
Total contractual cash
obligations                       $ 134,619          $ 649,260          $ 212,525          $ 84,395          $ 368,131          $ 1,684,464          $ 3,133,394



(1)The contractual obligations set forth in this table exclude contracts for
property operations and certain other contracts entered into in the normal
course of business. Also excluded are accruals and payables incurred and
interest rate derivative liabilities, which are reflected in our reported
liabilities (although debt and lease liabilities are included on the table).
(2)Represents scheduled principal amortization payments and maturities only and
therefore excludes net debt discounts and deferred financing costs of $22.9
million. As of September 30, 2021, maturities in 2023 included $10.0 million
that may be extended to 2024, subject to certain conditions.
(3)We expect to pay these items using cash flow from operations.
(4)Represents interest costs for our outstanding debt as of September 30, 2021
for the terms of such debt.  For variable rate debt, the amounts reflected above
used September 30, 2021 interest rates on variable rate debt in computing
interest costs for the terms of such debt. We expect to pay these items using
cash flow from operations.
(5)Represents contractual obligations pertaining to new development activities.
(6)Due to the long-term nature of certain development and construction contracts
and leases included in these lines, the amounts reported in the table represent
our estimate of the timing for the related obligations being payable.
(7)Represents contractual obligations pertaining to projects for which we are
acting as construction manager on behalf of unrelated parties who are our
clients.  We expect to be reimbursed in full for these costs by our clients.

We expect to spend approximately $85 million on development costs and
approximately $40 million on improvements and leasing costs for operating
properties (including the commitments set forth in the table above) during the
remainder of 2021.  We expect to fund the development costs initially using
primarily borrowings under our Revolving Credit Facility.  We expect to fund
improvements to existing operating properties using cash flow from operating
activities.

Certain of our debt instruments require that we comply with a number of
restrictive financial covenants, including maximum leverage ratio, unencumbered
leverage ratio, minimum net worth, minimum fixed charge coverage, minimum
unencumbered interest coverage ratio, minimum debt service and maximum secured
indebtedness ratio.  As of September 30, 2021, we were compliant with these
covenants.

Off-Balance Sheet Arrangements

We had no material off-balance sheet arrangements during the nine months ended September 30, 2021.



Inflation

Most of our tenants are obligated to pay their share of a property's operating
expenses to the extent such expenses exceed amounts established in their leases,
which are based on historical expense levels.  Some of our tenants are obligated
to pay their full share of a building's operating expenses.  These arrangements
somewhat reduce our exposure to increases in such costs resulting from
inflation.

Recent Accounting Pronouncements

See Note 2 to our consolidated financial statements for information regarding recent accounting pronouncements.


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