Document:

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                                                                    EXHIBIT 10.6
                              CONSULTING AGREEMENT

         THIS AGREEMENT is entered into as of January 5, 2006 (the "EXECUTION
DATE") between Brandywine Realty Trust, a Maryland real estate investment trust
(the "COMPANY"), and TF August Associates, Inc., a Texas corporation (the
"CONSULTANT").

                                   WITNESSETH:

         THAT WHEREAS, the Company desires to engage the Consultant as a
consultant to provide to the Company the services described in Schedule A
attached hereto; and

         WHEREAS, the Consultant is willing to be retained to assist in such
matters.

         NOW, THEREFORE, for and in consideration of the mutual covenants and
promises of the parties, the Company and the Consultant agree as follows:

                                  SECTION ONE

                            ENGAGEMENT OF CONSULTANT

         The Company hereby engages the Consultant to provide the consulting,
investment committee and integration services hereinafter described in Schedule
A, and the Consultant agrees to perform such consulting services for the fees
and reimbursement of expenses specified in Section Four, on the terms
hereinafter stated.

                                   SECTION TWO

                                TERM OF AGREEMENT

         Notwithstanding anything herein to the contrary, including, without
limitation, the execution and delivery of this Agreement as of the Execution
Date, this Agreement shall not become effective for any purpose unless and until
the REIT Merger has been consummated. Upon the consummation of the REIT Merger,
this Agreement shall become fully effective as if executed and delivered on the
date of such consummation (the "EFFECTIVE Date"). The term "REIT MERGER" has the
meaning given to it in the Agreement and Plan of Merger dated as of October 3,
2005 (the "MERGER AGREEMENT") by and among the Company, Brandywine Operating
Partnership, L.P., a Delaware limited partnership, Brandywine Cognac I LLC, a
Maryland limited liability company, Brandywine Cognac II LLC, a Delaware limited
liability company, Prentiss Properties Trust, a Maryland real estate investment
trust ("PRENTISS"), and Prentiss Properties Acquisition Partners, L.P., a
Delaware limited partnership. This Agreement shall continue in effect until the
third anniversary (the "TERMINATION DATE") of the Effective Date (such time, the
"TERM").

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                                 SECTION THREE

                            SERVICES TO BE PERFORMED

         A. SCOPE OF SERVICES. During the term of this Agreement, the Consultant
shall provide the consulting, investment committee and integration services
described in Schedule A.

         B. LOCATION AND TIME OF SERVICES. The Consultant shall make his
services reasonably available at the offices provided in this Agreement in
Dallas, Texas. The exact times during which the Consultant is to be available
for service hereunder shall be determined by mutual agreement of the parties.
The Consultant shall receive direction as to the consulting services to be
rendered by him from Gerard H. Sweeney or his successor.

         C. INDEPENDENT CONTRACTOR. In the performance of such services, the
Consultant shall act solely as an independent contractor, and nothing herein
contained shall at any time be so construed as to create the relationship of
employer and employee, partnership, principal and agent, or joint venture as
between the Company and Consultant. Consultant shall not have any authority to
bind the Company in any relationship with third parties unless specifically
authorized in writing by an officer of the Company.

                                  SECTION FOUR

                                  COMPENSATION

         A. FEES. The Company shall pay Consultant $1,000 per year. Such amount
shall be payable on each anniversary of the Effective Date (in arrears) or more
frequently at the option of the Company. In addition, the Company shall pay
Consultant $500 per hour ("HOURLY FEE") for the Consultant's time in performing
the services hereunder. The Consultant shall submit a written statement showing
the amount billed in order for the Consultant to receive payment of Hourly Fees
under this Section Four B.

         B. EXPENSES. The Company shall reimburse Consultant for travel and
business expenses incurred by Consultant in performing service under this
Agreement on the same basis as the Company reimburses its own employees for
travel and business expenses. However, other than with respect to reasonable de
minimis business expenses, no reimbursable travel or business expense shall be
incurred by the Consultant unless authorized in advance by the Company. The
Consultant shall submit a written statement on the Company's standard expense
statement form, with supporting receipts, in order for the Consultant to receive
reimbursement for his expenses under this Section Four B.

         C. OFFICES. The Company shall provide the Consultant with a similar
office to his office with Prentiss during the Term. Such similar office will be
an office of the Consultant's choosing located in a grade A office building in
Dallas, Texas or the surrounding area that is exterior office space and is not
more than 2,500 square feet. Such offices will accommodate all of the office
equipment that the Consultant determines to be necessary for such offices and
contain at least the same level of amenities as the Consultant's current office,
including but not limited to a conference room of a similar size to his current
conference room, secretarial furniture and other furniture. Such offices will
also have staff offices that are contiguous with the Consultant's offices. The
Consultant shall have such rights as are traditionally afforded to other tenants
in the building in which such office shall be provided, including tenant
improvements of at least $40.00 per square foot. The Consultant shall be
entitled to at least three parking places free of charge adjacent to his office.

                                       2
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         D. STAFF. The Consultant shall be entitled to the exclusive use of the
services of a secretary to be named by the Consultant in his sole discretion
from time to time during the Term. During the Term, the secretary shall, at sole
option of the Consultant, be employed by the Company and shall be compensated
and provided benefits by the Company at least at the rates and terms provided to
Company Executive Assistants to the Company's executive officers, including
participation in the 401(k) plan and cafeteria plan, as of the date of this
Agreement as set forth on Schedule B with raises and annual bonuses consistent
with Company Executive Assistants to the Company's executive officers. Any
replacements of the secretary during the Term may, in Consultant's sole
discretion, be compensated by the Company up to the same rate as their
predecessors during the remainder of the Term and be provided bonuses and raises
up to the amounts provided to past secretaries of the Consultant.

                                  SECTION FIVE

                    CONSULTANT'S SEVERANCE AND OTHER BENEFITS

         As an independent contactor, the Consultant shall not be eligible for
or accrue any benefits in any of the benefit plans of the Company or any of its
subsidiaries; provided, however, that nothing contained in this Agreement, nor
any payments made to the Consultant hereunder shall be construed to reduce any
severance or other benefits to which the Consultant may be entitled as a result
of the Consultant's former employment by the Company (including Prentiss and any
other predecessor entities) or any of its subsidiaries pursuant to the Amended
and Restated Employment Agreement between the Consultant and Prentiss dated as
of May 10, 2000, as amended by the First Amendment to the Amended and Restated
Employment Agreement, the Second Amendment to the Amended and Restated
Employment Agreement and as further amended (the "PRENTISS AGREEMENT").

                                  SECTION SIX

                                   INSURANCE

         Inasmuch as the Consultant is an independent contractor and not an
employee of the Company, the Consultant shall maintain his own health insurance
and life insurance, as he may deem appropriate, provided, however, that nothing
in this Agreement shall modify any right the Consultant may have to receive
health insurance from the Company as a result of his prior employment
relationship with the Company (including Prentiss and any other predecessor
entities) and its subsidiaries pursuant to the Prentiss Agreement. The Company
shall indemnify the Consultant and hold him harmless to the full extent
permitted by law against loss and expense (including attorney's fees) from any
action, suit, proceeding or claim made or threatened (whether civil, criminal,
administrative or investigative) against Consultant directly or indirectly
arising out of the performance of the Consultant's duties under this Agreement,
except to the extent arising out of Consultant's gross negligence or willful
misconduct.

                                       3
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                                 SECTION SEVEN

                      NON-COMPETITION AND NON-SOLICITATION

         A. OTHER CONSULTING SERVICES. Except as provided in Section Seven B
below, during the term of this Agreement, the Consultant may perform employment
or consulting services for entities other than the Company, provided that the
Consultant makes himself available to the Company on a reasonable basis, and any
employment or consulting services provided to an entity other than the Company
are performed at times when Consultant is not performing work for the Company.

         B. NON-COMPETITION. Notwithstanding Section Seven A above, the
Consultant shall not, for a period of twelve months following the Effective
Date, (i) without the prior written approval of the Board of Trustees or the
Chief Executive Officer of the Company, which will not be unreasonably withheld,
commence construction or development on or acquire or manage an office building,
or participate in the ownership, management, operation or control of any entity
engaged in the business of constructing, developing, acquiring, managing or
owning office buildings, in any Major Metropolitan Area in which the Company
operates at the time of this Agreement or (ii) hire any person who is employed
by the Company or any of its subsidiaries (other than as provided in the
Prentiss Agreement or persons in a clerical position) in any of the Major
Metropolitan Areas who is not scheduled, as of the date of this Agreement, to be
terminated or solicit, entice or persuade any person or entity doing business
with or employed by the Company to terminate their relationship with the
Company. In addition, during the second twelve month period following the
Effective Date, the Consultant shall not, without the prior written approval of
the Board of Trustees or Chief Executive Officer of the Company, engage in any
construction, development or acquisition activities that are restricted in this
Section Seven B during the initial twelve month period following the Effective
Date if the budgeted cost of the construction activities, computed in aggregate
for any activities that are part of a related project, equal or exceed $100
million. For the purposes of this Agreement, "MAJOR METROPOLITAN AREAS" shall
include the following metropolitan areas: Washington, DC, Dallas/Fort Worth,
Austin, Denver, Oakland, Silicon Valley, San Diego, Los Angeles, Philadelphia
and Richmond, Virginia and the State of New Jersey. For the purposes of clarity,
Chicago, Illinois shall not be a Major Metropolitan Area. Notwithstanding the
foregoing, the Consultant shall not be prohibited from owning a non-controlling
interest in any publicly traded company or from owning any passive equity
interests in any investment vehicle that is not controlled by the Consultant nor
managed by any entity controlled by the Consultant.

                                       4
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                                 SECTION EIGHT

                            PROTECTION OF INFORMATION

         All information and material acquired or developed by the Consultant
while performing services pursuant to this Agreement shall become the exclusive
property of the Company. Such information and material shall remain confidential
and shall not be disclosed to anyone nor used for another's benefit, without the
Company's prior written consent; provided, however, such the Consultant shall
not be deemed to be prohibited from disclosing any information to the extent
such information (i) becomes generally available to the public other than as a
result of a disclosure by the Consultant or any of his representatives in
violation of this Agreement, (ii) was in the Consultant's possession prior to
his receipt of the confidential information pursuant to this Agreement, provided
that the source of such information was not known by the Consultant to be
subject to an obligation not to disclose such information and/or (iii) becomes
available to the Consultant or his representatives on a non-confidential basis
from a source other than the Company or any representative of the Company,
provided that such source was not known by the Consultant to be subject to an
obligation not to disclose such information. Upon termination of this Agreement
for any reason, the Consultant agrees to deliver to the Company all copies of
any and all reports, tabulations, formulations, maps, diagrams, plans,
processes, or any other data or documents of any kind, nature or description
prepared hereunder immediately, whether completed or not, and without regard to
whether any or all the foregoing matters would be deemed confidential, material
or important.

                                  SECTION NINE

                                ENTIRE AGREEMENT

         This written Agreement contains the sole and entire agreement between
the parties with respect to consulting services. The parties acknowledge and
agree that neither of them has made any representation with respect to the
subject matter of this Agreement or any other representations except as are
specifically set forth herein, and each party acknowledges that he or it has
relied on his or its own judgment in entering into this Agreement. The parties
further acknowledge that any statements or representations that may have
heretofore been made by either of them or to the other are void and of no effect
and that neither of them has relied thereon in connection with his or its
dealing with the other. Any provision of this Agreement prohibited by law or
otherwise ruled ineffective shall only be ineffective to the extent of such
prohibition or ruling, with invalidating the remaining portions hereof.

                                  SECTION TEN

                                     WAIVER

         No waiver or modification of this Agreement or any covenant, condition,
or limitation herein contained is valid unless in writing and duly executed by
the party to be charged therewith. Furthermore, no evidence of any waiver or
modification shall be offered or received in evidence in any proceeding,
arbitration, or litigation between the parties arising out of or affecting this
Agreement, or the rights or obligations of any party hereunder, unless such
waiver or modification is in writing, and duly executed. The provisions of this
paragraph may not be waived except as herein set forth.

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                                 SECTION ELEVEN

                                     NOTICES

         All notices and written statements required pursuant to this Agreement
shall be deemed to have been given upon the mailing (hereof postage prepaid, to
the party entitled, at the address listed below or at such other address as may,
from time to time, be designated in writing to the other party.

         CONSULTANT:  TF August Associates, Inc.
                      c/o Thomas F. August
                      6214 Park Lane
                      Dallas, Texas 75225

         COMPANY:     Brandywine Realty Trust
                      401 Plymouth Road
                      Plymouth Meeting, PA 19462
                      Attn: Brad A. Molotsky, Senior Vice President and General
                        Counsel

                                 SECTION TWELVE

                                  GOVERNING LAW

         This Agreement shall be governed as to its formation, interpretation
and performance by the laws of the State of Texas without regard to provisions
regarding choice of law of other states.

                                SECTION THIRTEEN

                                SECTION HEADINGS

         The section headings in this Agreement are for convenience of reference
only and shall not be deemed to alter or affect any provision hereof.

                            [Signature Page Follows]

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         IN WITNESS WHEREOF, this Agreement has been executed by the parties as
of the date stated at the beginning of this Agreement.

                                   CONSULTANT

                                   TF AUGUST ASSOCIATES, INC.

                                   By:   /s/ Thomas F. August
                                         ---------------------------------------
                                   Name: Thomas F. August
                                   Title: President

                                   BRANDYWINE REALTY TRUST

                                   By: /s/ Gerard H. Sweeney
                                      ------------------------------------------
                                   Name:  Gerard H. Sweeney
                                   Title: President and Chief Executive Officer

         The undersigned hereby agrees to be personally bound by Consultant's
obligations under Section 7 B of this Agreement.

                                   /s/ Thomas F. August
                                   ---------------------------------------------
                                   Thomas F. August

<PAGE>

                                   SCHEDULE A

                       DESCRIPTION OF CONSULTING SERVICES

         The Consultant shall perform such services as may be reasonably
requested by the Company consistent with the Consultant's experience with
Prentiss Properties Trust and his expertise in the office property investment
industry, including but not limited to (i) providing for the orderly transition
and integration with respect to the merger of Prentiss Properties Trust into a
wholly-owned indirect subsidiary of Brandywine Realty Trust; (ii) participation
on the Company's investment committee, (iii) assisting with strategic
acquisitions; (iv) advising with respect to property acquisitions, new
developments and dispositions; and (v) assisting with the planning of company
business strategy.

<PAGE>
                                   SCHEDULE B

                         ASSISTANTS TO THOMAS F. AUGUST

Welfare Benefits according to the current Company Plan or its successor Plan
for:

Medical Insurance
Dental Insurance
Vision Plan
Group Term Life Insurance
Accidental Death & Dismemberment Insurance
Travel Accident Insurance
Long and Short Term Disability Insurance
Section 125 Flexible Spending Accounts

Retirement Benefits according to the current Company Defined Contribution Plan
or its successor Plan

Other Company Benefits that are made available to similarly situated Employees<PAGE>

                                                                    EXHIBIT 10.7

                              EMPLOYMENT AGREEMENT

                  THIS EMPLOYMENT AGREEMENT is made as of the 5th day of
January, 2006 (the "Execution Date") by and between Brandywine Operating
Partnership, L.P., a Delaware limited partnership (the "Company") and Greg
Imhoff (the "Employee").

                  WHEREAS, the Company desires to employ the Employee, and the
Employee desires to be employed by the Company, upon the terms and conditions
hereinafter set forth.

                  NOW, THEREFORE, in consideration of the mutual covenants and
obligations contained herein, and intending to be legally bound, the parties,
subject to the terms and conditions set forth herein, agree as follows:

                  1. Effectiveness of this Agreement. Notwithstanding anything
herein to the contrary, including, without limitation, the execution and
delivery of this Agreement as of the Execution Date, this Agreement shall not
become effective for any purpose unless and until the REIT Merger has been
consummated. Upon the consummation of the REIT Merger, this Agreement shall
become fully effective as if executed and delivered on the date of such
consummation (the "Effective Date"). The term "REIT Merger" has the meaning
given to it in the Agreement and Plan of Merger dated as of October 3, 2005 (the
"Merger Agreement") by and among Brandywine Realty Trust, a Maryland real estate
investment trust, the Company, Brandywine Cognac I LLC, a Maryland limited
liability company, Brandywine Cognac II LLC, a Delaware limited liability
company, Prentiss Properties Trust, a Maryland real estate investment trust
("PPT"), and Prentiss Properties Acquisition Partners, L.P., a Delaware limited
partnership (together with PPT and their respective direct and indirect
subsidiaries, "Prentiss").

                  2. Employment and Term. The Company hereby employs the
Employee and the Employee hereby accepts employment with the Company for the
period commencing on the Effective Date and, unless such employment is sooner
terminated as provided herein, terminating at 5:00 p.m. on the first (1st)
anniversary of the Effective Date. Such one-year period of employment as the
same may be reduced as provided herein upon an earlier termination of the
Employee's employment, is referred to herein as the "Term." At the end of the
Term, the Employee's employment with the Company shall automatically continue
thereafter on an "at will" basis and, accordingly, Sections 5.1-5.3 of this
Agreement shall have no further force or effect and the Company may terminate
the employment of Employee at any time and for any reason, or for no reason.

                  3. Duties. During the Term, the Employee shall serve the
Company as its Senior Vice President and Chief Administrative Officer (the
"Position"). Employee shall report to Gerard Sweeney, the Company's President
and Chief Executive Officer. The Employee shall serve the Company faithfully and
to the best of his ability and shall devote his full work time, attention,
skill, and efforts to the performance of the duties required by and appropriate
for the Position. The Employee shall perform such specific duties and
responsibilities within the scope of the Position as may be reasonably assigned
to him from time to time by the Company, with the understanding that the
Employee's duties and responsibilities shall remain substantially similar to the
duties and responsibilities in his current position at Prentiss. The Employee
agrees to comply with all Company policies in effect from time to time and to
comply with all laws, rules, and regulations, including, without limitation,
those applicable to the Company.

<PAGE>
                  4. Compensation. The Company shall pay the Employee, and the
Employee hereby agrees to accept, as compensation for all services to be
rendered to the Company the compensation set forth in Section 4 of this
Agreement.

                           4.1 Salary. The Company shall pay the Employee an
annual salary of Two Hundred Thousand Dollars ($200,000.00).

                           4.2 2006 and Future Years Incentive Compensation. The
Company is developing a new incentive compensation plan for 2006 and future
years. This new plan will include a cash bonus component and an equity stock
component. This new plan will provide the Employee with the opportunity to earn
total compensation not less than the amount the Employee currently has the
opportunity to earn at Prentiss. Exact levels of compensation will be dependent
upon Company, and individual performance in accordance with the terms of the
plan. However, the Employee acknowledges that he will not be eligible for any
payment made by the Company to other Company employees under the Company's 2005
incentive compensation plan, which will be payable in 2006.

                           4.3 Benefits. During the Term, the Employee shall be
eligible for medical and dental benefits, short and long term disability
coverage and life insurance benefits that the Company provides generally for its
executive officers in accordance with the terms of the respective plans;
provided, however, that nothing herein shall be deemed to require the Company to
adopt or maintain any particular plan or policy. If the Company terminates the
Employee's employment without Cause (as defined in Section 5.3 of this
Agreement) or the Employee terminates the Employee's employment for Good Reason
(as defined in Section 5.3 of this Agreement), the Employee shall receive the
benefits defined in the Prentiss Properties Trust Change in Control Severance
Protection Plan for Key Employees dated as of October 3, 2005 (unless already
paid).

                           4.4 Vacation. During the Term, the Employee shall
receive four weeks paid vacation during each calendar year.

                           4.5 Reimbursement of Expenses. The Company shall
reimburse Employee for all reasonable, ordinary and necessary business expenses
incurred by the Employee during the term in connection with the performance of
the Employee's duties hereunder in accordance with the Company's regular
reimbursement procedures and practices in effect from time to time. The Company
agrees that the types and amounts of reimbursements will not be less than the
types and amounts of reimbursements permitted under current Prentiss
reimbursement practices.

                           4.6 Payment. Payment of all compensation to Employee
hereunder shall be made in accordance with the terms of this Agreement and
applicable Company policies in effect from time to time, including normal
payroll practices, and shall be subject to all applicable withholdings and taxes
(collectively, "Taxes").

                                      -2-
<PAGE>
                           4.7 Benefits Based On Tenure of Employment. The
Company agrees that to the extent that any benefit provided pursuant to this
Agreement is based in whole or in part on tenure of employment, then the
Employee will be credited with his prior years of employment with Prentiss when
calculating tenure of employment.

                  5. Termination.

                           5.1 During the Term, if the Company terminates the
Employee's employment for Cause (as defined in Section 5.3 of this Agreement) or
the Employee terminates the Employee's employment for a reason other than Good
Reason (as defined in Section 5.3 of this Agreement), the Employee shall be
entitled to salary accrued but unpaid as of the date of such termination, and
the Employee shall no longer be entitled to receive any other payments, rights
or benefits under this Agreement, and the Company shall not have any further
obligation to the Employee pursuant to this Agreement, except (x) as provided to
the contrary under the terms of any benefit plan in which he participates and
pursuant to any federal or state law regarding the continuation of coverage
under the Company's group health plan, and (y) as provided in Section 5.2 of
this Agreement.

                           5.2 During the Term, if the Company terminates the
Employee's employment for a reason other than Cause (as defined in Section 5.3
of this Agreement), including death or disability, or the Employee terminates
the Employee's employment for Good Reason (as defined in Section 5.3 of this
Agreement), then (x) the Company shall pay to the Employee salary accrued but
unpaid as of the date of such termination and (y) the Company shall pay to the
Employee the payments and benefits defined under the Prentiss Properties Trust
Change in Control Severance Protection Plan for Key Employees dated as of
October 3, 2005, (unless already paid).

                           5.3 The term "Cause" shall mean: (i) any material
breach by the Employee of any of the terms or provisions of this Agreement which
the Employee fails to cure within fifteen (15) days after written notice thereof
has been provided to the Employee by the Company; or (ii) the Employee's
conviction on a felony or a crime involving moral turpitude or substance abuse;
or (iii) the Employee's misappropriation of funds. The term "Good Reason" shall
mean: (i) the Company requiring the Employee's relocation more than fifty (50)
miles from the Employee's primary office subsequent to the Effective Date,
without such Employee's consent; or (ii) a material adverse alteration in the
nature of the Employee's position, provided that (x) a change of title, or (y) a
change of reporting and, in either case, a concomitant change of duties, shall
not be considered a material adverse alteration unless the duties are materially
inconsistent with the Employee's duties at the time of the Effective Date; or
(iii) the Employee is excluded from the Company's (or upon a Change in Control,
its successor's) long term incentive plan or reduction by the Company of the
Employee's annual base salary or target bonus; or (iv) an assignment of duties
to the Employee that is materially inconsistent with the Employee's job
description at the time of the Effective Date; or (v) a "Change in Control" of
the Company after the Effective Date (provided the Employee elects to resign
within thirty (30) days of the Change in Control). The term "Change in Control"
has the meaning provided to it in the Company's Amended and Restated 1997
Long-Term Incentive Plan.

                                      -3-
<PAGE>
                           5.4 The Company and the Employee agree that the REIT
Merger constitutes a "Change in Control" for purposes of and as defined in
Section 2.7 of the Prentiss Properties Trust Change in Control Severance
Protection Plan for Key Employees dated as of October 3, 2005, that this
Agreement is not meant to any way reduce or eliminate any right or benefit to
which the Employee is entitled under that Plan, and that any ambiguity or
conflict between that Plan and this Agreement shall be resolved in favor of the
Employee.

                           5.5 The benefits as defined in Section 4.2 of the
Prentiss Properties Trust Change in Control Severance Protection Plan for Key
Employees dated as of October 3, 2005 shall be payable by the Company to the
Employee according to the terms of that Plan if the Employee's employment is
terminated for any reason during the period of time between the last day of the
Term and two years after the Effective Date (unless already paid).

                           5.6 If the Company terminates the Employee's
employment after the Term, then the Employee will be entitled to severance
payments consistent with the Company's past practices for comparable employees,
at the Company's sole discretion. To the extent that any severance benefit is
based in whole or in part on tenure of employment, then the Employee will be
credited with his prior years of employment with Prentiss when calculating
tenure of employment.

                  6. Confidential Information. The Company shall provide the
Employee with the confidential and proprietary information concerning the
Company. Both during the Term and at all times thereafter, the Employee shall
not disclose such information to any other person or entity.

                  7. Restrictive Covenants.

                           7.1 After the Employee's employment ends for any
reason, the Employee may work for any person, business, or entity, whether in
competition with the Company or not.

                           7.2 During the Term, if the Company terminates the
Employee's employment for Cause (as defined in Section 5.3 of this Agreement) or
the Employee terminates the Employee's employment for a reason other than Good
Reason (as defined in Section 5.3 of this Agreement), then the Employee will
not, during the three-year period immediately following the Effective Date of
this Agreement, directly or indirectly (i) solicit, induce, or attempt to
influence, any employee of the Company or any of its affiliates to terminate
employment; or (ii) interfere with the relationship between the Company and its
existing or prospective tenants, including without limitation encouraging a
tenant to terminate, or elect not to renew, its lease with the Company; or (iii)
interfere with the relationship between the Company and any service providers to
the Company.

                           7.3 Notwithstanding anything to the contrary
contained herein, the restrictions contained in Section 7 of this Agreement
shall not be applicable if the Company terminates the Employee's employment for
a reason other than Cause (as defined in Section 5.3 of this Agreement) or the
Employee terminates the Employee's employment for Good Reason (as defined in
Section 5.3 of this Agreement).

                                      -4-
<PAGE>
                           7.4 The Employee acknowledges that the restrictions
contained herein, in view of the nature of the business in which Employee has
been engaged, are reasonable and necessary to protect the legitimate interest of
the Company, and that any violation of these restrictions would result in
irreparable injury to the Company. The Employee acknowledges that, in the event
of a violation of any such restrictions, the Company shall be entitled to
preliminary and permanent injunctive relief as well as an equitable accounting
of all earnings, profits and other benefits arising from such violation which
rights shall be cumulative and in addition to any other rights or remedies to
which Company may be entitled. In the event that the Employee shall violate the
foregoing restrictions, the relevant period referred to above shall be extended
by a period of time equal to that period beginning when such violation
commenced, and ending when the activities constituting such a violation shall
have finally been terminated in good faith.

                  8. Representations, Warranties and Covenants of the Employee.

                           8.1 The Employee represents and warrants to the
Company that there are no restrictions, agreements or understandings to which
the Employee is a party which would prevent or make unlawful the Employee's
execution of this Agreement or the Employee's employment hereunder, or which is
or would limit the performance by the Employee of the obligations hereunder.

                           8.2 The Employee covenants that in connection with
his provision of services to the Company, he shall not breach any obligation
(legal, statutory, contractual or otherwise) to any former employer or other
person, including, but not limited to obligations relating to confidentiality
and proprietary rights.

                  9. Survival of Provisions. The provisions of this Agreement
set forth in Sections 5.5, 6, 7, and 11 hereof shall survive the termination of
the Employee's employment hereunder for the purposes provided for therein.

                  10. Successors and Assigns. This Agreement shall inure to the
benefit of and be binding upon the Company and the Employee and their respective
successors, executors, administrators, heirs and/or assigns; provided that the
Employee shall not make any assignment of this Agreement or any interest herein,
by operation of law or otherwise, without the prior written consent of the
Company. The Company agrees that its obligations under this Agreement are
binding upon any successors or assigns.

                  11. Assistance in Litigation. Employee shall reasonably
cooperate with the Company in the defense or prosecution of any claims or
actions now in existence or that may be brought in the future against or on
behalf of the Company that relate to events or occurrences that transpired while
Employee was employed by the Company. Employee's cooperation in connection with
such claims or actions shall include, but not be limited to, being available to
meet with counsel to prepare for discovery or trial and to act as a witness on
behalf of the Company at mutually convenient times. Employee also shall
cooperate fully with the Company in connection with any investigation or review
by any federal, state, or local regulatory authority as any such investigation
or review relates to events or occurrences that transpired while Employee was
employed by the Company. The Company will pay Employee a reasonable hourly rate
for Employee's cooperation pursuant to this Section. The Company will reimburse
the Employee for reasonable attorney's fees and costs incurred as a result of
his compliance with this Section. Nothing in this Agreement limits the
Employee's rights under the Indemnification Agreement dated November 5, 2004 or
any other applicable agreement or insurance policy.

                                      -5-
<PAGE>
                  12. Notices. All notices and other communications required or
permitted to be given hereunder shall be in writing and shall be deemed to have
been duly given if delivered personally, mailed by certified mail (return
receipt requested) or sent by overnight delivery service, or facsimile
transmission (with electronic confirmation of successful transmission) to the
parties at the following addresses or at such other addresses as shall be
specified by the parties by like notice, in order of preference of the
recipient:

                           If to the Company:        Brandywine Realty Trust
                                                     401 Plymouth Road Suite 500
                                                     Plymouth Meeting, PA 19462
                                                     Attn:  Gerard H. Sweeney
                                                     President and CEO
                                                     Fax:  (610) 832-4919

                           If to Employee:           Greg Imhoff
                                                     7263 Paldao Drive
                                                     Dallas, TX 75240

Notice so given shall, in the case of mail, be deemed to be given and received
on the fifth calendar day after posting, in the case of overnight delivery
service, on the date of actual delivery and, in the case of facsimile
transmission, telex or personal delivery, on the date of actual transmission or,
as the case may be, personal delivery.

                  13. Entire Agreement; Amendments. This Agreement contains the
entire agreement and understanding of the parties hereto relating to the subject
matter hereof, and merges and supersedes all prior and contemporaneous
discussions, agreements and understandings of every nature between the parties
hereto relating to the employment of the Employee with the Company. This
Agreement may not be changed or modified, except by an agreement in writing
signed by each of the parties hereto.

                  14. Waiver. The waiver of the breach of any term or provision
of this Agreement shall not operate as or be construed to be a waiver of any
other or subsequent breach of this Agreement.

                  15. Governing Law. This Agreement shall be construed and
enforced in accordance with the laws of the State of Texas, without regard to
the principles of conflicts of laws of any jurisdiction.

                  16. Invalidity. If any provision of this Agreement shall be
determined to be void, invalid, unenforceable or illegal for any reason, the
validity and enforceability of all of the remaining provisions hereof shall not
be affected thereby.

                                      -6-
<PAGE>
                  17. Section Headings. The section headings in this Agreement
are for convenience only; they form no part of this Agreement and shall not
affect its interpretation.

                  18. Counterparts. This Agreement may be executed in one or
more counterparts, each of which shall be deemed an original, and all of which
together shall be deemed to be one and the same instrument.

         IN WITNESS WHEREOF, the parties have caused this Employment Agreement
to be executed the day and year first written above.

                              BRANDYWINE OPERATING PARTNERSHIP,
                              L.P.,

                              By: Brandywine Realty Trust, its general partner

                              /s/ Gerard H. Sweeney
                              --------------------------------------------
                              By:  Gerard H. Sweeney
                              Its: President and Chief Executive Officer

                              /s/ Gregory S. Imhoff
                              --------------------------------------------
                              Gregory S. Imhoff

                                      -7-

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