3: Initial statement of beneficial ownership of securities

C. Taylor Pickett

LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS
Know all by these presents, that the undersigned hereby makes,
constitutes and appoints each of Lee W. Murray and Karen M.
Singer, each acting individually, as the undersigned's true and
lawful attorney-in-fact, with full power and authority as
hereinafter described on behalf of and in the name, place and
stead of the undersigned to:
(1)prepare, execute, acknowledge, deliver and file Forms 3, 4, and
5 (including any amendments thereto) with respect to the
securities of CORPORATE OFFICE PROPERTIES TRUST, a Maryland real
estate investment trust, and/or CORPORATE OFFICE PROPERTIES, L.P.,
a Delaware limited partnership (the "Company"), required to be
filed with the United States Securities and Exchange Commission,
any national securities exchanges and the Company pursuant to
Section 16(a) of the Securities Exchange Act of 1934 and the rules
and regulations promulgated thereunder, as amended from time to
time (the "Exchange Act");
(2)seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information on transactions in the Company's
securities from any third party, including brokers and employee
benefit plan administrators and trustees, and the undersigned
hereby authorizes and approves any such release of information;
and
(3)perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf of
the undersigned in connection with the foregoing.
The undersigned acknowledges that:
(1)this Power of Attorney authorizes, but does not require, each
such attorney-in-fact to act in their discretion on information
provided to such attorney-in-fact without independent verification
of such information;
(2)any documents prepared and/or executed by either such attorney-
in-fact on behalf of the undersigned pursuant to this Power of
Attorney will be in such form and will contain such information
and disclosure as such attorney-in-fact, in his or her discretion,
deems necessary or desirable;
(3)neither the Company nor either of such attorneys-in-fact
assumes (i) any liability for the undersigned's responsibility to
comply with the requirement of the Exchange Act, (ii) any
liability of the undersigned for any failure to comply with such
requirements, or (iii) any obligation or liability of the
undersigned for profit disgorgement under Section 16(b) of the
Exchange Act; and
(4)this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations
under the Exchange Act, including without limitation the reporting
requirements under Section 16 of the Exchange Act.
The undersigned hereby gives and grants each of the foregoing
attorneys-in-fact full power and authority to do and perform all
and every act and thing whatsoever requisite, necessary or
appropriate to be done in and about the foregoing matters as fully
to all intents and purposes as the undersigned might or could do
if present, hereby ratifying all that each such attorney-in-fact
of, for and on behalf of the undersigned, shall lawfully do or
cause to be done by virtue of this Limited Power of Attorney.
This Power of Attorney shall remain in full force and effect until
revoked by the undersigned in a signed writing delivered to each
such attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 28th day of October, 2013.


/s/C. Taylor Pickett

STATE OF Maryland)
)
COUNTY OF Baltimore)
On this 28th day of October, 2013, C. Taylor Pickett, personally
appeared before me, and acknowledged that he executed the
foregoing instrument for the purposes therein contained.
IN WITNESS WHEREOF, I have hereunto set my hand and official seal.

Judith A. Jacobs
Notary Public

My Commission Expires: May 12, 2016