BRANDYWINE REALTY TRUST
8-K, 1997-09-12
REAL ESTATE INVESTMENT TRUSTS
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                          SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C. 20549




                                       FORM 8-K

                                    Current Report

                          Pursuant to Section 13 or 15(d) of
                         The Securities Exchange Act of 1934



        Date of Report (Date of earliest event reported) September 11, 1997



                               BRANDYWINE REALTY TRUST
                (Exact name of registrant as specified in its charter)




     MARYLAND                          1-9106                   23-2413352
(State or other jurisdiction    (Commission file number)     (I.R.S. Employer
     of incorporation)                                    Identification Number)


               16 Campus Boulevard, Newtown Square, Pennsylvania  19073
                       (Address of principal executive offices)
                                           
                                           
                                    (610) 325-5600
                 (Registrant's telephone number, including area code)



                                  Page 1 of 3 pages

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Item 5.  Other Events.

    On September 11, 1997, the Company and Brandywine Operating Partnership,
L.P. entered into an Underwriting Agreement (the "Underwriting Agreement") with
Smith Barney Inc. (the "Underwriter") pursuant to which the Company agreed to
sell to the Underwriter an aggregate of 786,840 common shares of beneficial
interest, $.01 par value per share (the "Common Shares").  The Common Shares are
to be sold pursuant to the Underwriting Agreement at a price to the public of
$22.3125 per share ($21.1969 after reduction for underwriting discounts and
commissions).  Such net proceeds, less expenses estimated at $75,000, will be
contributed by the Company to the Operating Partnership, which will use such
contribution to make additional acquisitions of office or industrial properties
and for working capital purposes.  Closing of the offering of Common Shares
pursuant to the Underwriting Agreement is subject to customary closing
conditions.



Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

(c) Exhibits.

1.1      Underwriting Agreement among the Company, Brandywine Operating
         Partnership, L.P. and Smith Barney Inc.

23.1     Consent of Arthur Andersen LLP.

23.2     Consent of Zelenkofske Axelrod & Co., Ltd. 

<PAGE>

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the 
Registrant has duly caused this report to be signed on its behalf by the 
undersigned thereunto duly authorized.
    
    
    
                             BRANDYWINE REALTY TRUST
    
    
Date:  September 11, 1997         By: /s/ Gerard H. Sweeney
                                      ---------------------
                                  Gerard H. Sweeney, President and Chief
                                  Executive Officer
                                  (Principal Executive Officer)



Date:  September 11, 1997         By: /s/ Mark S. Kripke
                                      ------------------
                                  Mark S. Kripke, Chief Financial Officer
                                  and Secretary
                                  (Principal Financial and Accounting Officer)

<PAGE>

                                                                  Exhibit 1.1

                                
                                786,840 Shares

                               BRANDYWINE REALTY TRUST

                         Common Shares of Beneficial Interest

                                UNDERWRITING AGREEMENT
                                ----------------------

                                                              September 11, 1997

SMITH BARNEY INC.
388 Greenwich Street
New York, New York 10013

Dear Sirs:

    Brandywine Realty Trust, a Maryland real estate investment trust (the 
"Company"), proposes to issue and sell an aggregate of 786,840 shares 
(the " Shares") of its common shares of beneficial interest, par value $0.01 
per share (the "Common Shares"), to you (the "Underwriter").  The Underwriter 
intends to deposit the Shares with the trustee of The Equity Focus Trusts - 
REIT Portfolio Series, 1997 (the "Trust") a registered unit investment trust 
under the Investment Company Act of 1940, as amended, to which Smith Barney 
Inc. acts as sponsor and depositor, in exchange for units in the Trust.  

    The Company, directly and through a wholly-owned subsidiary, is the sole 
general partner and a limited partner (with an aggregate 98.606% ownership 
interest as of the date hereof, without giving effect to the issuance and 
sale of any Shares hereunder) of Brandywine Operating Partnership, L.P., a 
Delaware limited partnership (the "Operating Partnership"). The Company will 
contribute the net proceeds of the sale of the Shares to the Operating 
Partnership in exchange for additional partnership interests in the Operating 
Partnership. The Company and the Operating Partnership wish to confirm as 
follows their agreement with you, in connection with the purchase of the 
Shares by the Underwriter.

    1.   Registration Statement and Prospectus.  The Company has prepared and 
filed with the Securities and Exchange Commission (the "Commission") in 
accordance with the provisions of the Securities Act of 1933, as amended, and 
the rules and regulations of the Commission thereunder (collectively, the 
"Act"), a registration statement on Form S-3 (Registration No. 333-20991) 
under the Act (the "registration statement"), including a prospectus 
generally relating to the Shares; and such amendments, if any, to such 
registration statement as may have been required prior to the date hereof 
have been filed with the Commission, and such amendments, if any, have 

<PAGE>

been similarly prepared. Such registration statement and any post-effective 
amendments thereto have become effective under the Act.  The Company also has 
filed with the Commission pursuant to Rule 424(b) under the Act, a prospectus 
supplement relating to the Shares dated the date hereof.

    The term "Registration Statement" as used in this Agreement means the 
registration statement (including all financial schedules and exhibits), as 
amended at the time it became effective, or, if the registration statement 
became effective prior to the execution of this Agreement, as supplemented or 
amended prior to the execution of this Agreement, including all information 
(if any) deemed to be a part of such registration at the time it became 
effective pursuant to Rule 430A under the Act.  If it is contemplated, at the 
time this Agreement is executed, that a post-effective amendment to the 
registration statement will be filed and must be declared effective before 
the offering of the Shares may commence, the term "Registration Statement" as 
used in this Agreement means the registration statement as amended by said 
post-effective amendment.  The term "Prospectus" as used in this Agreement 
means the base prospectus included in the Registration Statement at the time 
it was declared effective, or, if the prospectus included in the Registration 
Statement omits information in reliance on Rule 430A under the Act and such 
information is included in a prospectus filed with the Commission pursuant to 
Rule 424(b) under the Act, the term "Prospectus" as used in this Agreement 
means the prospectus in the form included in the Registration Statement as 
supplemented by the addition of the Rule 430A information contained in the 
prospectus filed with the Commission pursuant to Rule 424(b).  The term 
"Prepricing Prospectus" as used in this Agreement means the prospectus 
subject to completion in the form included in the registration statement at 
the time of the initial filing of the registration statement with the 
Commission, and as such prospectus shall have been amended or supplemented 
from time to time prior to the date of the Prospectus.  Any reference in this 
Agreement to the registration statement, the Registration Statement, any 
Prepricing Prospectus or the Prospectus shall be deemed to refer to and 
include the documents incorporated by reference therein pursuant to Item 12 
of Form S-3 under the Act, as of the date of the registration statement, the 
Registration Statement, such Prepricing Prospectus or the Prospectus, as the 
case may be, and any reference to any amendment or supplement to the 
registration statement, the Registration Statement, any Prepricing Prospectus 
or the Prospectus shall be deemed to refer to and include any documents filed 
after such date under the Securities Exchange Act of 1934, as amended (the 
"Exchange Act") which, upon filing, are incorporated by reference therein, as 
required by paragraph (b) of Item 12 of Form S-3.  As used herein, the term 
"Incorporated Documents" means the documents that at the time are 
incorporated by reference in the registration statement, the Registration 
Statement, any Prepricing Prospectus, the Prospectus, or any amendment or 
supplement thereto. Capitalized terms used, but not defined, herein shall 
have the respective meanings ascribed thereto in the Prospectus.

    2.   Agreements to Sell and Purchase.  The Company hereby agrees, subject 
to all the terms and conditions set forth herein, to issue and sell to the 
Underwriter and, upon the basis of the representations, warranties and 
agreements of the Company and the Operating Partnership herein contained and 
subject to all the terms and conditions set forth herein, the Underwriter 
agrees to purchase from the Company, at a purchase price of $21.1969 per Share 
(the "purchase price per share"), 786,840 Shares.  

    3.   Delivery of the Shares and Payment Therefor.  Delivery to the 
Underwriter of and payment for the Shares shall be made at the office of 
Smith Barney Inc., 388 Greenwich Street, 

                                       2

<PAGE>

New York, NY 10013, at 10:00 A.M., New York City time, on September 16, 1997 
(the "Closing Date").  The place of closing for the Shares and the Closing 
Date may be varied by agreement between the Underwriter and the Company.

    Certificates for the Shares to be purchased hereunder shall be registered 
in such names and in such denominations as you shall request prior to 9:30 
A.M., New York City time, on the second business day preceding the Closing 
Date.  Such certificates shall be made available to you in New York City for 
inspection and packaging not later than 9:30 A.M., New York City time, on the 
business day next preceding the Closing Date.  The certificates evidencing 
the Shares to be purchased hereunder shall be delivered to you on the Closing 
Date against payment of the purchase price therefor by wire transfer of 
immediately available funds to the Company.

    4.   Agreements of the Company and the Operating Partnership.  The 
Company and the Operating Partnership jointly and severally agree with the 
Underwriter as follows:

         (a)  If, at the time this Agreement is executed and delivered, it is 
necessary for the Registration Statement or a post-effective amendment 
thereto to be declared effective before the offering of the Shares may 
commence, the Company will endeavor to cause the Registration Statement or 
such post-effective amendment to become effective as soon as possible and 
will advise you promptly and, if requested by you, will confirm such advice 
in writing, when the Registration Statement or such post-effective amendment 
has become effective.

         (b)  The Company will advise you promptly and, if requested by you, 
will confirm such advice in writing: (i) of any request by the Commission for 
amendment of or a supplement to the Registration Statement, any Prepricing 
Prospectus or the Prospectus or for additional information; (ii) of the 
issuance by the Commission of any stop order suspending the effectiveness of 
the Registration Statement or of the suspension of qualification of the 
Shares for offering or sale in any jurisdiction or the initiation of any 
proceeding for such purpose; and (iii) within the period of time referred to 
in paragraph (f) below, of any change in the Company's condition (financial 
or other), business, prospects, properties, net worth or results of 
operations, or of the happening of any event, which makes any statement of a 
material fact made in the Registration Statement or the Prospectus (as then 
amended or supplemented) untrue or which requires the making of any additions 
to or changes in the Registration Statement or the Prospectus (as then 
amended or supplemented) in order to state a material fact required by the 
Act or the regulations thereunder to be stated therein or necessary in order 
to make the statements therein not misleading, or of the necessity to amend 
or supplement the Prospectus (as then amended or supplemented) to comply with 
the Act or any other law.  If at any time the Commission shall issue any stop 
order suspending the effectiveness of the Registration Statement, the Company 
will make every reasonable effort to obtain the withdrawal of such order at 
the earliest possible time. 

         (c)  The Company will furnish to you, without charge, (i) five 
copies of the registration statement as originally filed with the Commission 
and of each amendment thereto, including financial statements and all 
exhibits to the registration statement, (ii) such number of copies of the 
Prepricing Prospectus or Prospectus as you may reasonably request, (iii) such 
number of copies of the Incorporated Documents as you may reasonably request, 
and (iv) such number of conformed copies of the Registration Statement and of 
each amendment thereto, but without exhibits, as you may reasonably request. 

                                       3

<PAGE>

         (d)  The Company will not file any amendment to the Registration 
Statement or make any amendment or supplement to the Prospectus or, prior to 
the end of the period of time referred to in the first sentence of subsection 
(f) below, file any document which upon filing becomes an Incorporated 
Document, of which you shall not previously have been advised or to which, 
after you shall have received a copy of the document proposed to be filed, 
you shall object. 

         (e)  Prior to the execution and delivery of this Agreement, the 
Company has delivered to you, without charge, in such quantities as you have 
reasonably requested, copies of each form of the Prepricing Prospectus.  The 
Company consents to the use, in accordance with the provisions of the Act and 
with the securities or Blue Sky or real estate syndication laws of the 
jurisdictions in which the Shares are offered by the Underwriter, prior to 
the date of the Prospectus, of each Prepricing Prospectus so furnished by the 
Company. 

         (f)  As soon after the execution and delivery of this Agreement as 
possible and thereafter from time to time for such period as in the opinion 
of counsel for the Underwriter a prospectus is required by the Act to be 
delivered in connection with sales by the Underwriter or dealer, the Company 
will expeditiously deliver to each Underwriter and each dealer, without 
charge, as many copies of the Prospectus (and of any amendment or supplement 
thereto) as you may request.  The Company consents to the use of the 
Prospectus (and of any amendment or supplement thereto) in accordance with 
the provisions of the Act and with the securities or Blue Sky or real estate 
syndication laws of the jurisdictions in which the Shares are offered by the 
Underwriter, both in connection with the offering and sale of the Shares and 
for such period of time thereafter as the Prospectus is required by the Act 
to be delivered in connection with sales by an Underwriter or dealer.  If 
during such period of time any event shall occur that in the judgment of the 
Company or in the opinion of counsel for the Underwriter is required to be 
set forth in the Prospectus (as then amended or supplemented) or should be 
set forth therein in order to make the statements therein, in the light of 
the circumstances under which they were made, not misleading, or if it is 
necessary to supplement or amend the Prospectus (or to file under the 
Exchange Act any document which, upon filing, becomes an Incorporated 
Document) in order to comply with the Act or any other law, the Company will 
forthwith prepare and, subject to the provisions of paragraph (d) above, file 
with the Commission an appropriate supplement or amendment thereto (or to 
such document), and will expeditiously furnish to the Underwriter a 
reasonable number of copies thereof.  In the event that the Company and you 
agree that the Prospectus should be amended or supplemented, the Company, if 
requested by you, will promptly issue a press release announcing or 
disclosing the matters to be covered by the proposed amendment or supplement. 

         (g)  The Company will cooperate with you and with counsel for the 
Underwriter in connection with the registration or qualification of the 
Shares for offering and sale by the Underwriter under the securities or Blue 
Sky or real estate syndication laws of such jurisdictions as you may 
designate and will file such consents to service of process or other 
documents necessary or appropriate in order to effect such registration or 
qualification; provided that in no event shall the Company be obligated to 
qualify to do business in any jurisdiction where it is not now so qualified 
or to take any action which would subject it to service of process in suits, 
other than those arising out of the offering or sale of the Shares, in any 
jurisdiction where it is not now so subject. 

                                       4

<PAGE>

         (h)  The Company will make generally available to its security 
holders a consolidated earnings statement, which need not be audited, 
covering a twelve-month period commencing after the effective date of the 
Registration Statement and ending not later than 15 months thereafter, as 
soon as practicable after the end of such period, which consolidated earnings 
statement shall satisfy the provisions of Section 11(a) of the Act.

         (i)  During the period of five years hereafter, the Company will 
furnish to you (i) as soon as available, a copy of each report of the Company 
mailed to stockholders or filed with the Commission, and (ii) from time to 
time such other information concerning the Company as you may reasonably 
request. 

         (j)  If this Agreement shall terminate or shall be terminated after 
execution pursuant to any provisions hereof (otherwise than pursuant to 
Section 11 hereof or by notice given by you terminating this Agreement 
pursuant to Section 11 or Section 12 hereof) or if this Agreement shall be 
terminated by the Underwriter because of any failure or refusal on the part 
of the Company to comply with the terms or fulfill any of the conditions of 
this Agreement, the Company agrees to reimburse you for all out-of-pocket 
expenses (including fees and expenses of counsel for the Underwriter) 
incurred by you in connection herewith. 

         (k)  The Company will apply the net proceeds from the sale of the 
Shares in accordance with the description set forth in the Prospectus. 

         (l)  The Company will timely file with the Commission the Prospectus 
pursuant to Rule 424(b) under the Act and will advise you of the time and 
manner of such filing. 

         (m)  Except as stated in this Agreement and in any Prepricing 
Prospectus and Prospectus, the Company has not taken, nor will it take, 
directly or indirectly, any action designed to or that might reasonably be 
expected to cause or result in stabilization or manipulation of the price of 
the Common Shares to facilitate the sale or resale of the Shares.

    5.   Representations and Warranties of the Company.  The Company and the 
Operating Partnership, jointly and severally, represent and warrant to the 
Underwriter that:

         (a)  Each Prepricing Prospectus included as part of the registration 
statement as originally filed or as part of any amendment or supplement 
thereto, or filed pursuant to Rule 424 under the Act, complied when so filed 
in all material respects with the provisions of the Act.  The Commission has 
not issued any order suspending the effectiveness of the Registration 
Statement or any part thereof  and no proceeding for that purpose has been 
instituted or threatened or, to the best knowledge of the Company, 
contemplated by the Commission or the securities authority of any state or 
other jurisdiction.

         (b)  The Company and the transactions contemplated by this Agreement 
meet the requirements and conditions for using a registration statement on 
Form S-3 under the Act.  When any Prepricing Prospectus was filed with the 
Commission it (i) contained all statements required to be stated therein in 
accordance with, and complied in all material respects with the requirements 
of, the Act and the rules and regulations of the Commission thereunder and 
(ii) did not include any untrue statement of a material fact or omit to state 
any material fact necessary in 

                                       5

<PAGE>

order to make the statements therein, in the light of the circumstances under 
which they were made, not misleading.  When the Registration Statement or any 
amendment thereto was declared effective, and on the Closing Date it (i) 
contained or will contain all statements required to be stated therein in 
accordance with, and complied or will comply in all material respects with 
the requirements of, the Act and the rules and regulations of the Commission 
thereunder and (ii) did not or will not include any untrue statement of a 
material fact or omit to state any material fact necessary to make the 
statements therein not misleading.  When the Prospectus or any amendment or 
supplement thereto is filed with the Commission pursuant to Rule 424(b) and 
at the Closing Date, the Prospectus, as amended or supplemented at any such 
time, (i) contained or will contain all statements required to be stated 
therein in accordance with, and complied or will comply in all material 
respects with the requirements of, the Act and the rules and regulations of 
the Commission thereunder and (ii) did not or will not include any untrue 
statement of a material fact or omit to state any material fact necessary in 
order to make the statements therein, in the light of the circumstances under 
which they were made, not misleading.  The representations and warranties in 
this paragraph (b) do not apply to statements in or omissions from the 
Registration Statement or the Prospectus made in reliance upon and in 
conformity with information furnished to the Company in writing by or on 
behalf of the Underwriter through you expressly for use therein.

         (c)  The Incorporated Documents heretofore filed, when they were 
filed (or, if any amendment with respect to any such document was filed, when 
such amendment was filed), conformed in all material respects with the 
requirements of the Exchange Act and the rules and regulations thereunder, 
any further Incorporated Documents so filed will, when they are filed, 
conform in all material respects with the requirements of the Exchange Act 
and the rules and regulations thereunder, no such document when it was filed 
(or, if an amendment with respect to any such document was filed, when such 
amendment was filed), contained an untrue statement of a material fact or 
omitted to state a material fact required to be stated therein or necessary 
in order to make the statements therein not misleading and no such further 
document, when it is filed, will contain an untrue statement of a material 
fact or will omit to state a material fact required to be stated therein or 
necessary in order to make the statements therein not misleading.

         (d)  The Company is a real estate investment trust duly formed and 
validly existing under and by virtue of the laws of the State of Maryland and 
is in good standing with the State Department of Assessments and Taxation of 
Maryland, with full trust power and authority to own, lease, and operate its 
properties (including certain properties (the "Recent Acquisitions") 
described in the Prospectus under the caption "Recent Developments - Recent 
Acquisitions" as being subject to certain agreements of sale (the 
"Transaction Documents")), and to conduct its business as described in the 
Registration Statement and the Prospectus, and is duly registered and 
qualified to conduct its business and is in good standing in each 
jurisdiction or place where the nature of its properties or the conduct of 
its business (after taking into account the purchase of the properties 
described under the caption "Recent Developments -Recent Acquisitions") 
requires such registration or qualification, except where the failure to be 
so registered or qualified would not have a material adverse effect on the 
condition (financial or otherwise), business, prospects, properties, net 
worth or results of operations of the Company.  The Transaction Documents are 
listed on Schedule 5(d) hereto.

                                       6

<PAGE>

         (e)  Each of the Operating Partnership and the corporations, limited 
liability companies, partnerships and limited partnerships listed on Schedule 
5(e) hereto (each, a "Subsidiary") is a corporation, limited partnership, 
limited liability company or general partnership duly incorporated or formed, 
as the case may be, validly existing and in good standing under the laws of 
its jurisdiction of incorporation or formation.  Each such entity has full 
corporate, limited liability company  or partnership power and authority, to 
own, lease, and operate its properties, and to conduct its business as 
described in the Registration Statement and the Prospectus.  Each such 
Subsidiary is duly registered and qualified to conduct its business and is in 
good standing in each jurisdiction or place where the nature of its 
properties or the conduct of its business requires such registration or 
qualification, except where the failure to be so registered or qualified 
would not have a material adverse effect on the condition (financial or 
otherwise), business, prospects, properties, net worth or results of 
operations of such Subsidiary.

         (f)  All the outstanding Common Shares of the Company have been duly 
authorized and validly issued, are fully paid and nonassessable and are free 
of any preemptive or similar rights; the Shares have been duly authorized 
and, when issued and delivered to the Underwriter against payment therefor in 
accordance with the terms hereof, will be validly issued, fully paid and 
nonassessable and free of any preemptive or similar rights that entitle or 
will entitle any person or entity to acquire any Shares upon the issuance 
thereof by the Company, and the beneficial interest of the Company conforms 
to the description thereof in the Registration Statement and the Prospectus.  
Except with regard to 1997 compensation of non-employee trustees of the 
Company payable in Common Shares, awards under the Company's 1997 Long-Term 
Incentive Plan and as disclosed in the Prospectus, there are no outstanding 
options, warrants or other rights calling for the issuance of, or any 
commitment, plan or arrangement to issue, any beneficial interest of the 
Company or any security convertible into or exchangeable for beneficial 
interest of the Company.

         (g)  All of the outstanding Units and shares of capital stock or 
partnership interests in each of the Subsidiaries have been duly authorized 
and validly issued or created under the documents or agreements forming such 
entity, are fully paid and, in the case of Subsidiaries that are 
corporations, nonassessable, and will be owned or be held by the persons and 
entities in the percentage amounts set forth and in the manner described in 
the Prospectus or Schedule 5(g).  Except as described in the Prospectus or 
Schedule 5(g), all such Units, partnership interests and shares of capital 
stock are owned by the Company directly, or indirectly through the Operating 
Partnership or one of the other Subsidiaries, free and clear of any lien, 
adverse claim, security interest, equity, or other encumbrance, and the 
Company's percentage interest and ownership in the Operating Partnership, and 
the Company's and the Operating Partnership's percentage interest and 
ownership in each of the Subsidiaries, is as set forth on Schedule 5(g) 
attached hereto.  Except as described in the Registration Statement and the 
Prospectus (or any amendment or supplement thereto), there are no outstanding 
options, warrants or other rights calling for the issuance of, or any 
commitment, plan or arrangement to issue, any equity interests in any 
Subsidiary, or any security convertible into, or exchangeable or exercisable 
for, any such interests in any such Subsidiary.  The terms of the Units 
conform in all material respects to statements and descriptions thereof 
contained in the Prospectus.  The Company is the sole general partner of the 
Operating Partnership and has sole voting, management and administrative 
control of Brandywine Realty Partners.

                                       7

<PAGE>

         (h)  The Company has no direct or indirect subsidiaries other than 
the Subsidiaries.  Other than the Subsidiaries, neither the Company nor the 
Operating Partnership owns, directly or indirectly, more than 2% of the 
securities of any corporation, partnership, joint venture, limited liability 
company, association or other business association. 

         (i)  There are no actions, suits or proceedings pending or, to the 
knowledge of the Company or the Operating Partnership, threatened against or 
affecting the Company or any of the Subsidiaries, or any of their respective 
partners, directors, trustees or officers in their capacity as such, or to 
which the Company or any of the Subsidiaries or any of their respective 
partners, directors, trustees or officers in their capacity as such, or to 
which any of their respective properties is subject, that are required to be 
described in the Registration Statement or the Prospectus but are not 
described as required, and there are no agreements, contracts, indentures, 
leases or other instruments that are required to be described in the 
Registration Statement or the Prospectus or to be filed as an exhibit to the 
Registration Statement that are not described or filed as required by the 
Act. 

         (j)  Neither the Company nor any of the Subsidiaries is in violation 
of its Declaration of Trust, certificate or articles of incorporation or 
by-laws, partnership agreement or other organizational documents, or of any 
law, ordinance, administrative or governmental rule or regulation applicable 
to the Company or any of the Subsidiaries or of any decree of any court or 
governmental agency or body having jurisdiction over the Company or any of 
the Subsidiaries, or in default in any material respect in the performance of 
any obligation, agreement or condition contained in any bond, debenture, note 
or any other evidence of indebtedness or in any agreement, indenture, lease 
or other instrument to which the Company or any of the Subsidiaries is a 
party or by which any of them or any of their respective properties may be 
bound. 

         (k)  Neither the issuance and offer, and sale or delivery of the 
Shares, the execution, delivery or performance of this Agreement, nor the 
consummation of the transactions contemplated hereby or thereby by the 
Company or any Subsidiary, as applicable, (i) required or requires any 
consent, approval, authorization or other order of or registration or filing 
with, any court, regulatory body, administrative agency or other governmental 
body, agency or official (except such as may be required for the registration 
of the Shares under the Act and compliance with the securities or Blue Sky 
laws of various jurisdictions, all of which have been or will be effected in 
accordance with this Agreement), (ii) conflicted with, conflicts or will 
conflict with or constituted, constitutes or will constitute a breach of, or 
a default under, the Declaration of Trust, certificate or articles of 
incorporation or bylaws, partnership agreement or other organizational 
documents, of the Company or any of the Subsidiaries or under any agreement, 
indenture, lease or other instrument to which the Company or any of the 
Subsidiaries is a party or by which any of them or any of their respective 
properties may be bound, (iii) violated, violates or will violate any 
statute, law, regulation or filing or judgment, injunction, order or decree 
applicable to the Company or any of the Subsidiaries or any of their 
respective properties, or (iv) resulted, results or will result in the 
creation or imposition of any lien, charge or encumbrance upon any property 
or assets of the Company or any of the Subsidiaries pursuant to the terms of 
any agreement or instrument to which any of them is a party or by which any 
of them may be bound or to which any of the property or assets of any of them 
is subject. 

                                       8

<PAGE>

         (l)  All offers and sales of Units or other partnership interests in 
the Operating Partnership, and the offer, sale or issuance by the Company of 
Common Shares and Preferred Shares prior to the date hereof have been duly 
registered under the Act, or were exempt from the registration requirements 
of the Act and state securities and Blue Sky laws.

         (m)  The accountants, Arthur Andersen LLP and Zelenkofske Axelrod & 
Company, Ltd., who have audited the financial statements included or 
incorporated by reference in the Registration Statement and the Prospectus 
(and any amendment or supplement thereto), are independent public accountants 
as required by the Act. 

         (n)  The financial statements, together with related schedules and 
notes, included or incorporated by reference in the Registration Statement 
and the Prospectus (and any amendment or supplement thereto), present fairly 
the consolidated financial position, results of operations and changes in 
cash flows of the respective entity, entities, property, or properties, as 
applicable, at the respective dates or for the respective periods to which 
they apply; such statements and related schedules and notes have been 
prepared in accordance with generally accepted accounting principles 
consistently applied throughout the periods involved, and comply with the 
applicable accounting requirements of the Act (including, without limitation, 
Rule 3-14 of Regulation S-X promulgated by the Commission).  The other 
financial and statistical information and data included in the Registration 
Statement and the Prospectus (and any amendment or supplement thereto) are 
accurately presented and prepared on a basis consistent with such financial 
statements and the books and records of the relevant entity, entities, 
property or properties, as applicable; any pro forma financial statements of 
the Company included or incorporated by reference in the Registration 
Statement and the Prospectus  comply in all material respects with the 
applicable requirements of Rule 11-02 of Regulation S-X of the Commission, 
and any pro forma adjustments have been made upon management's reasonable 
good faith estimates of the pro forma adjustments and have been properly 
applied to the historical amounts in the compilation of such statements.

         (o)  The Company has all trust power and authority, and the 
Operating Partnership has all partnership power and authority, to enter into 
this Agreement and each Transaction Document to which it is a party, and, in 
the case of the Company, to issue, sell and deliver the Shares to the 
Underwriter as provided in the Underwriting Agreement, and each of the 
Underwriting Agreement and each Transaction Document has been duly and 
validly authorized, executed and delivered by the Company and the Operating 
Partnership, as applicable, and, to the knowledge of the Company, each of the 
other parties thereto, and is a valid, legal and binding agreement of each of 
the Company and the Operating Partnership, as applicable, enforceable against 
each of the Company and the Operating Partnership in accordance with its 
terms, except as enforcement of rights to indemnity and contribution 
hereunder may be limited by Federal or state securities laws or principles of 
public policy.

         (p)  Except as disclosed in the Registration Statement and the
Prospectus (or any amendment or supplement thereto), subsequent to the
respective dates as of which such information is given in the Registration
Statement and the Prospectus (or any amendment or supplement thereto), neither
the Company nor any of the Subsidiaries has incurred any liability or
obligation, direct or contingent, or entered into any transaction, not in the
ordinary course of business, that is material to the Company and the
Subsidiaries taken as a whole, and there has not been any change in the
beneficial interest or capital stock, or material increase in the short-term

                                       9

<PAGE>

debt or long-term debt, of the Company or any of the Subsidiaries, or any 
material adverse change, or any development involving or which may reasonably 
be expected to involve, a prospective material adverse change, in the 
condition (financial or other), business, prospects, properties, net worth or 
results of operations of the Company and the Subsidiaries taken as a whole. 

         (q)  Each of the Company or the Operating Partnership (either 
directly or through a Subsidiary) has, and after giving effect to the 
transactions described in the Registration Statement and Prospectus will 
have, good and marketable and insurable title to all real property described 
in the Prospectus as being or to be owned by it, free and clear of all liens, 
claims, security interests or other encumbrances except such as are described 
in the Registration Statement and the Prospectus or in a document filed as an 
exhibit to, or incorporated by reference in, the Registration Statement.  All 
the property described in the Prospectus as being held under lease by each of 
the Company and the Subsidiaries is held by it under valid, subsisting and 
enforceable leases, other than those described in the Registration Statement 
and the Prospectus and those which do not and will not have a material 
adverse effect on the condition (financial or other), business, prospects, 
properties, net worth or results of operations of the Company and the 
Subsidiaries taken as a whole.

         (r)  The Company has not distributed and, prior to the later to 
occur of (i) the Closing Date and (ii) completion of the distribution of the 
Shares, will not distribute any offering material in connection with the 
offering and sale of the Shares other than the Registration Statement, the 
Prepricing Prospectus, the Prospectus or other materials, if any, permitted 
by the Act. 

         (s)  Each of the Company and each of the Subsidiaries has, such 
permits, licenses, franchises and authorizations of governmental or 
regulatory authorities ("permits") as are necessary to own its respective 
properties and to conduct its business in the manner described in the 
Prospectus; each of the Company and each of the Subsidiaries has fulfilled 
and performed all its material obligations with respect to such permits and 
no event has occurred which allows, or after notice or lapse of time would 
allow, revocation or termination thereof or results in any other material 
impairment of the rights of the holder of any such permit, subject in each 
case to such qualification as may be set forth in the Prospectus; and, except 
as described in the Prospectus, none of such permits contains any restriction 
that is materially burdensome to the Company or any of the Subsidiaries. 

         (t)  The Company together with the Subsidiaries maintains and will 
maintain a system of internal accounting controls sufficient to provide 
reasonable assurances that (i) transactions are executed in accordance with 
management's general or specific authorization; (ii) transactions are 
recorded as necessary to permit preparation of financial statements in 
conformity with generally accepted accounting principles and to maintain 
accountability for assets; (iii) access to assets is permitted only in 
accordance with management's general or specific authorization; and (iv) the 
recorded accountability for assets is compared with existing assets at 
reasonable intervals and appropriate action is taken with respect to any 
differences. 

         (u)  Neither the Company nor any of its Subsidiaries nor any 
employee or agent of the Company or any Subsidiary has made any payment of 
funds of the Company or any 

                                       10

<PAGE>

Subsidiary or received or retained any funds in violation of any law, rule or 
regulation, which payment, receipt or retention of funds is of a character 
required to be disclosed in the Prospectus.

         (v)  The Company and each of the Subsidiaries have filed all tax 
returns required to be filed, which returns are complete and correct, and 
neither the Company nor any Subsidiary is in default in the payment of any 
taxes which were payable pursuant to said returns or any assessments with 
respect thereto. 

         (w)  Except as described in the Prospectus, there is no holder of 
any security of the Company, or the Operating Partnership or any other person 
who has the right, contractual or otherwise, to cause the Company to sell or 
otherwise issue to them, or to permit them to underwrite the sale of, the 
Shares or the right to have any Common Shares or other securities of the 
Company included in the Registration Statement or the right, as a result of 
the filing of the registration statement or sale of the Shares as 
contemplated by this Agreement, to require registration under the Act of any 
Common Shares or other securities of the Company.  

         (x)  The Company and the Subsidiaries own or possess all patents, 
trademarks, trademark registrations, service marks, service mark 
registrations, trade names, copyrights, licenses, inventions, trade secrets 
and rights described in the Prospectus as being owned by them or any of them 
or necessary for the conduct of their respective businesses, and neither the 
Company nor the Operating Partnership is aware of any claim to the contrary 
or any challenge by any other person to the rights of the Company and the 
Subsidiaries with respect to the foregoing. 

         (y)  None of the Company or any Subsidiary is now, and after sale of 
the Shares to be sold by it hereunder and application of the net proceeds 
from such sale as described in the Prospectus under the caption "Use of 
Proceeds" will be, an "investment company," or entity "controlled" by an 
"investment company," within the meaning of the Investment Company Act of 
1940, as amended.

         (z)  The Company has filed in a timely manner each document or 
report required to be filed by it pursuant to the Exchange Act and the rules 
and regulations thereunder; each such document or report at the time it was 
filed conformed to the requirements of the Exchange Act and the rules and 
regulations thereunder; and none of such documents or reports contained an 
untrue statement of any material fact or omitted to state any material fact 
required to be stated therein or necessary to make the statements therein not 
misleading. 

         (aa) The Company and its Subsidiaries are organized and operate in 
the manner described in the Registration Statement so that the Company meets 
the requirements for qualification as a real estate investment trust under 
Sections 856 through 860 of the Code and the rules and regulations thereunder 
as currently in effect.  Each Subsidiary that is a partnership or limited 
liability company will be treated as a partnership, and not as an association 
taxable as a corporation or a publicly traded partnership, for federal income 
tax purposes.

         (bb) The Shares are duly authorized for listing, subject to official 
notice of issuance, on the American Stock Exchange.

                                       11

<PAGE>

         (cc) Except as described in the Prospectus or provided in the Credit 
Facility, the mortgages and deeds of trust encumbering the Properties will 
not be cross-defaulted or cross-collateralized with any other property not 
owned directly or indirectly by the Company or any of the Subsidiaries.

         (dd) (1)  Each of the Properties, the Company, and each of the 
Subsidiaries (i) is, and as of the Closing Date will be, in compliance in all 
material respects with any and all applicable foreign, federal, state and 
local laws and regulations relating to the protection of human health and 
safety, the environment or hazardous or toxic substances or wastes, 
pollutants or contaminants ("Environmental Laws"), (ii) has received, or will 
have received, as of the Closing Date, as the case may be, all licenses or 
other approvals required of them under applicable Environmental Laws to 
conduct their respective business, and (iii) is, and will be as of the 
Closing Date in material compliance with all terms and conditions of any such 
permit, license or approval.

              (2)  Except as may be specifically disclosed in the Phase I 
Environmental Site Assessment reports referred to in the Prospectus (the 
"Environmental Reports"), the Company and the Subsidiaries have not at any 
time, and, to the knowledge of the Company, no other party has at any time, 
handled, buried, stored, retained, refined, transported, processed, 
manufactured, generated, produced, spilled, allowed to seep, leak, escape or 
leach, or be pumped, poured, emitted, emptied, discharged, injected, dumped, 
transferred or otherwise disposed of or dealt with, Hazardous Materials (as 
hereinafter defined) on, to or from the Properties.  The Company and the 
Subsidiaries do not intend to use the Properties or any subsequently acquired 
properties for the purpose of handling, burying, storing (except with respect 
to cleaning materials reasonably used to operate the Properties in the 
ordinary course, in normal quantities and in full compliance with law), 
retaining, refining, transporting, processing, manufacturing, generating, 
producing, spilling, seeping, leaking, escaping, leaching, pumping, pouring, 
emitting, emptying, discharging, injecting, dumping, transferring or 
otherwise disposing of or dealing with Hazardous Materials. 

              (3)  Except as disclosed in the Environmental Reports, to the 
knowledge of the Company, there has been no seepage, leaking, escape, 
leaching, discharge, injection, release, emission, spill, pumping, pouring, 
emptying or dumping of Hazardous Materials into waters on or adjacent to the 
Properties or onto lands from which such hazardous or toxic waste or 
substances might seep, flow or drain into such waters.

              (4)  Except as disclosed in the Environmental Reports, neither 
the Company nor any Subsidiary has received notice of any occurrence or 
circumstance which, with notice or passage of time or both, would give rise 
to any claim under or pursuant to any Environmental Law pertaining to 
hazardous or toxic waste or substances on or originating from the Properties 
or arising out of the conduct of any such party.

              (5)  No environmental engineering firm which prepared the 
Environmental Reports (or amendments thereto) or physical condition 
(engineering) reports with respect to the Properties was employed for such 
purpose on a contingent basis or has any substantial interest in the Company 
or any Subsidiary.

         As used herein, "Hazardous Material" shall include, without 
limitation, any flammable explosives, radioactive materials, hazardous 
materials, hazardous wastes, hazardous 

                                       12

<PAGE>

or toxic substances or related materials, asbestos or any related material as 
defined by any Federal, state or local environmental law, ordinance, rule, or 
regulation including, without limitation, Environmental Laws such as the 
Comprehensive Environmental Response, Compensation, and Liability Act of 
1980, as amended (42 U.S.C. Section 9601, et seq.), the Hazardous Materials 
Transportation Act, as amended (49 U.S.C. Section 1801, et seq.), the 
Resource Conservation and Recovery Act, as amended (42 U.S.C. Section 9601, 
et seq.), The New Jersey Industrial Site Recovery Act, N.J.S.A.Section 
13:1K-6, et seq. or and in the regulations adopted and publications 
promulgated pursuant to each of the foregoing or by any Federal, state or 
local Governmental authority having or claiming jurisdiction over the 
Properties as described in the Prospectus.

         (ee) To the knowledge of the Company, all physical condition 
(engineering) reports obtained for the Properties are materially true and 
correct.  Neither the Company nor any of the Subsidiaries is aware of any 
material capital expenditures (other than expenditures for maintenance or 
tenant improvements in the ordinary course of business) that will be required 
in connection with any of the Properties prior to the fifth anniversary of 
this Agreement, except with respect to the renovation of the 4000 Midlantic 
Drive office building and the development of the Horsham Business Center. 

         (ff) As of the Closing Date, the Company or the Operating 
Partnership, as applicable, will have obtained ALTA Extended Coverage Owner's 
Policies of Title Insurance (or its equivalent) from title insurers of 
recognized financial responsibility on each of the Properties,  in amounts at 
least equal to the acquisition price of each such property (or, in the case 
of the Property at Delaware Corporate Center I, the leasehold interest) (and 
improvements located on each such property), and such insurance shall be in 
full force and effect.

         (gg) The assets of the Company and the Subsidiaries do not, and as 
of the Closing Date will not, constitute "plan assets" under the Employee 
Retirement Income Security Act of 1974, as amended.

         (hh) Each partnership agreement, agreement of limited partnership, 
other organizational or formation agreement, and each amendment thereto, of 
each Subsidiary that is a general or limited partnership (the "Organizational 
Documents") has been duly and validly authorized, executed and delivered by 
the Company and the applicable Subsidiaries party thereto, and each such 
Organizational Document constitutes the legal, valid and binding agreement of 
each party thereto, enforceable against each such party in accordance with 
its terms.

         (ii) Each of the agreements disclosed in the Prospectus under the 
caption "Recent Developments -- Recent Acquisitions" as having been executed 
has been executed and delivered by the seller thereunder and has been duly 
and validly authorized, executed and delivered by each of the Company and the 
Subsidiaries that is a party thereto, and each such agreement constitutes the 
legal, valid and binding agreement of each such party thereto, enforceable 
against each such party in accordance with its terms.

         (jj) (i) The Company and its Subsidiaries have their respective 
    principal business operations in the United States or its Territories.

                                       13

<PAGE>

              (ii) The Company has a class of securities registered pursuant to
    Section 12(b) of the Exchange Act.

              (iii) The Company (A) since prior to February 14, 1994, has been
    subject to the requirements of Section 12 of the Exchange Act and has filed
    all the material required to be filed pursuant to Sections 13 and 14 of the
    Exchange Act, and (B) since prior to February 14, 1996, has filed in a
    timely manner all reports required to be filed under Sections 13 and 14 of
    the Exchange Act, and has not used Rule 12b-25(b) under the Exchange Act.

              (iv) Neither the Company nor any Subsidiary has, since December
    31, 1996, (A) failed to pay any dividend or sinking fund installment on
    preferred stock, or (B) defaulted (I) on any installment or installments on
    indebtedness for borrowed money, or (II) on any rental on one or more long
    term leases.

              (v) The aggregate market value of the Company's voting stock held
    by non-affiliates of the Company is $100 million or more and the Company
    had a trading volume of such stock of 3,000,000 shares or more during the
    12 month period ended September 11, 1997.

    6.   Indemnification and Contribution. (a)  The Company and the Operating 
Partnership, jointly and severally, agree to indemnify and hold harmless the 
Underwriter, the directors, officers, employees and agents of the 
Underwriter, and each person, if any, who controls the Underwriter within the 
meaning of Section 15 of the Act or Section 20 of the Exchange Act from and 
against any and all losses, claims, damages, liabilities and expenses 
(including reasonable costs of investigation) arising out of or based upon 
any untrue statement or alleged untrue statement of a material fact contained 
in any Prepricing Prospectus or in the Registration Statement or the 
Prospectus or in any amendment or supplement thereto, or arising out of or 
based upon any omission or alleged omission to state therein a material fact 
required to be stated therein or necessary to make the statements therein not 
misleading, except insofar as such losses, claims, damages, liabilities or 
expenses arise out of or are based upon any untrue statement or omission or 
alleged untrue statement or omission which has been made therein or omitted 
therefrom in reliance upon and in conformity with the information relating to 
the Underwriter furnished in writing to the Company by or on behalf of the 
Underwriter through you expressly for use in connection therewith (which 
information is described in its entirety in Section 13 below); provided, 
however, that the indemnification contained in this paragraph (a) with 
respect to any Prepricing Prospectus shall not inure to the benefit of any 
Underwriter (or to the benefit of any person controlling the Underwriter) on 
account of any such loss, claim, damage, liability or expense arising from 
the sale of the Shares by the Underwriter to any person if a copy of the 
Prospectus shall not have been delivered or sent to such person within the 
time required by the Act and the regulations thereunder, and the untrue 
statement or alleged untrue statement or omission or alleged omission of a 
material fact contained in such Prepricing Prospectus was corrected in the 
Prospectus, provided that the Company has delivered the Prospectus to the 
Underwriter in requisite quantity on a timely basis to permit such delivery 
or sending within the time required by the Act.  The foregoing indemnity 
agreement shall be in addition to any liability which the Company may 
otherwise have.

                                       14

<PAGE>

    (b)  If any action, suit or proceeding shall be brought against the 
Underwriter or any person controlling the Underwriter in respect of which 
indemnity may be sought against the Company or the Operating Partnership, the 
Underwriter or such controlling person shall promptly notify the Company or 
the Operating Partnership, and the Company or the Operating Partnership shall 
assume the defense thereof, including the employment of counsel and payment 
of all fees and expenses.  The Underwriter or any such controlling person 
shall have the right to employ separate counsel in any such action, suit or 
proceeding and to participate in the defense thereof, but the fees and 
expenses of such counsel shall be at the expense of the Underwriter or such 
controlling person unless (i) the Company and the Operating Partnership have 
agreed in writing to pay such fees and expenses, (ii) the Company and the 
Operating Partnership have failed to assume the defense and employ counsel, 
or (iii) the named parties to any such action, suit or proceeding (including 
any impleaded parties) include both the Underwriter or such controlling 
person and the Company or the Operating Partnership and the Underwriter or 
such controlling person shall have been advised by its counsel that 
representation of such indemnified party and the Company or the Operating 
Partnership by the same counsel would be inappropriate under applicable 
standards of professional conduct (whether or not such representation by the 
same counsel has been proposed) due to actual or potential differing 
interests between them (in which case the Company and the Operating 
Partnership shall not have the right to assume the defense of such action, 
suit or proceeding on behalf of such Underwriter or such controlling person). 
 It is understood, however, that the Company shall, in connection with any 
one such action, suit or proceeding or separate but substantially similar or 
related actions, suits or proceedings in the same jurisdiction arising out of 
the same general allegations or circumstances, be liable for the reasonable 
fees and expenses of only one separate firm of attorneys (in addition to any 
local counsel) at any time for the Underwriter and controlling persons not 
having actual or potential differing interests with you or among themselves, 
which firm shall be designated in writing by the Underwriter, and that all 
such fees and expenses shall be reimbursed as they are incurred.  The Company 
and the Operating Partnership shall not be liable for any settlement of any 
such action, suit or proceeding effected without its written consent, but if 
settled with such written consent, or if there shall be a final judgment for 
the plaintiff in any such action, suit or proceeding, the Company and the 
Operating Partnership agree to indemnify and hold harmless the Underwriter, 
to the extent provided in the preceding paragraph, and any such controlling 
person from and against any loss, claim, damage, liability or expense by 
reason of such settlement or judgment. 

    (c)  The Underwriter agrees to indemnify and hold harmless the Company, its
trustees and officers who sign the Registration Statement, and any person who
controls the Company within the meaning of Section 15 of the Act or Section 20
of the Exchange Act, to the same extent as the foregoing indemnity from the
Company and the Operating Partnership to the Underwriter, but only with respect
to losses, claims, damages, liabilities and expenses arising out of or based on
information relating to the Underwriter furnished in writing by or on behalf of
the Underwriter through you expressly for use in the Registration Statement, the
Prospectus or any Prepricing Prospectus or any amendment or supplement thereto. 
If any action, suit or proceeding shall be brought against the Company, any of
its directors or officers, or any such controlling person based on the
Registration Statement, the Prospectus or any Prepricing Prospectus, or any
amendment or supplement thereto, and in respect of which indemnity may be sought
against the Underwriter pursuant to this paragraph (c), the Underwriter shall
have the rights and duties given to the Company and the Operating Partnership by
paragraph (b) above (except that if the Company or the Operating Partnership
shall have assumed the defense thereof such Underwriter shall not be 

                                       15

<PAGE>

required to do so, but may employ separate counsel therein and participate in 
the defense thereof, but the fees and expenses of such counsel shall be at 
the Underwriter's expense), and the Company, its trustees and officers, and 
any such controlling person shall have the rights and duties given to the 
Underwriter by paragraph (b) above.  The foregoing indemnity agreement shall 
be in addition to any liability which the Underwriter may otherwise have.

    (d)  If the indemnification provided for in this Section 6 is unavailable 
to an indemnified party under paragraphs (a) or (c) hereof in respect of any 
losses, claims, damages, liabilities or expenses referred to therein, then an 
indemnifying party, in lieu of indemnifying such indemnified party, shall 
contribute to the amount paid or payable by such indemnified party as a 
result of such losses, claims, damages, liabilities or expenses (i) in such 
proportion as is appropriate to reflect the relative benefits received by the 
Company and the Operating Partnership, on the one hand, and the Underwriter, 
on the other hand, from the offering of the Shares, or (ii) if the allocation 
provided by clause (i) above is not permitted by applicable law, in such 
proportion as is appropriate to reflect not only the relative benefits 
referred to in clause (i) above but also the relative fault of the Company 
and the Operating Partnership, on the one hand, and the Underwriter, on the 
other, in connection with the statements or omissions that resulted in such 
losses, claims, damages, liabilities or expenses, as well as any other 
relevant equitable considerations. The relative benefits received by the 
Company and the Operating Partnership, on the one hand, and the Underwriter, 
on the other, shall be deemed to be in the same proportion as the total net 
proceeds from the offering (before deducting expenses) received by the 
Company and the Operating Partnership bear to the total underwriting 
discounts and commissions received by the Underwriter, in each case as set 
forth in the table on the cover page of the Prospectus.  The relative fault 
of the Company on the one hand and the Underwriter on the other hand shall be 
determined by reference to, among other things, whether the untrue or alleged 
untrue statement of a material fact or the omission or alleged omission to 
state a material fact relates to information supplied by the Company on the 
one hand or by the Underwriter on the other hand and the parties' relative 
intent, knowledge, access to information and opportunity to correct or 
prevent such statement or omission. 

    (e)  The Company, the Operating Partnership and the Underwriter agree 
that it would not be just and equitable if contribution pursuant to this 
Section 7 were determined by a pro rata allocation or by any other method of 
allocation that does not take account of the equitable considerations 
referred to in paragraph (d) above.  The amount paid or payable by an 
indemnified party as a result of the losses, claims, damages, liabilities and 
expenses referred to in paragraph (d) above shall be deemed to include, 
subject to the limitations set forth above, any legal or other expenses 
reasonably incurred by such indemnified party in connection with 
investigating any claim or defending any such action, suit or proceeding.  
Notwithstanding the provisions of this Section 7, the Underwriter shall not 
be required to contribute any amount in excess of the amount by which the 
total price of the Shares underwritten by it exceeds the amount of any 
damages which such Underwriter has otherwise been required to pay by reason 
of such untrue or alleged untrue statement or omission or alleged omission.  
No person guilty of fraudulent misrepresentation (within the meaning of 
Section 11(f) of the Act) shall be entitled to contribution from any person 
who was not guilty of such fraudulent misrepresentation. 

    (f)  No indemnifying party shall, without the prior written consent of the
indemnified party, effect any settlement of any pending or threatened action,
suit or proceeding in respect of 

                                       16

<PAGE>

which any indemnified party is or could have been a party and indemnity could 
have been sought hereunder by such indemnified party, unless such settlement 
includes an unconditional release of such indemnified party from all 
liability on claims that are the subject matter of such action, suit or 
proceeding.

    (g)  Any losses, claims, damages, liabilities or expenses for which an 
indemnified party is entitled to indemnification or contribution under this 
Section 7 shall be paid by the indemnifying party to the indemnified party as 
such losses, claims, damages, liabilities or expenses are incurred.  The 
indemnity and contribution agreements contained in this Section 7 and the 
representations and warranties of the Company and the Operating Partnership 
set forth in this Agreement shall remain operative and in full force and 
effect, regardless of (i) any investigation made by or on behalf of the 
Underwriter or any person controlling the Underwriter, the Company and its 
trustees or officers, the Operating Partnership and its officers, or any 
person controlling the Company or the Operating Partnership, (ii) acceptance 
of any Shares and payment therefor hereunder, and (iii) any termination of 
this Agreement.  A successor to the Underwriter or any person controlling the 
Underwriter, or to the Company and its trustees or officers, the Operating 
Partnership and its officers, or any person controlling the Company or the 
Operating Partnership, shall be entitled to the benefits of the indemnity, 
contribution, and reimbursement agreements contained in this Section 7.

    7.   Conditions of Underwriter's Obligations.  The obligation of the 
Underwriter to purchase the Shares hereunder are subject to the following 
conditions:

         (a)  If, at the time this Agreement is executed and delivered, it is 
necessary for the registration statement or a post-effective amendment 
thereto to be declared effective before the offering of the Shares may 
commence, the registration statement or such post-effective amendment shall 
have become effective not later than 5:30 P.M., New York City time, on the 
date hereof, or at such later date and time as shall be consented to in 
writing by you, and all filings, if any, required by Rules 424 and 430A under 
the Act shall have been timely made; no stop order suspending the 
effectiveness of the registration statement shall have been issued and no 
proceeding for that purpose shall have been instituted or, to the knowledge 
of the Company or any Underwriter, threatened by the Commission, and any 
request of the Commission for additional information (to be included in the 
Registration Statement or the Prospectus or otherwise) shall have been 
complied with to your satisfaction. 

         (b)  Subsequent to the effective date of this Agreement, there shall 
not have occurred (i) any change, or any development involving a prospective 
change, in or affecting the condition (financial or other), business, 
prospects, properties, net worth, or results of operations of the Company or 
the Subsidiaries not contemplated by the Prospectus, which in your opinion 
would materially, adversely affect the market for the Shares, or (ii) any 
event or development relating to or involving the Company or any officer or 
trustee of the Company or the Operating Partnership which makes any statement 
made in the Prospectus untrue or which, in the opinion of the Company and its 
counsel or the Underwriter and their counsel, requires the making of any 
addition to or change in the Prospectus in order to state a material fact 
required by the Act or any other law to be stated therein or necessary in 
order to make the statements therein, in light of the circumstances in which 
they were made, not misleading, if amending or supplementing the 

                                       17

<PAGE>

Prospectus to reflect such event or development would, in your opinion, 
materially, adversely affect the market for the Shares. 

         (c)  You shall have received on the Closing Date, the opinion of 
Pepper, Hamilton & Scheetz LLP, counsel for the Company, the Operating 
Partnership and the other Subsidiaries, dated the Closing Date and addressed 
to you, in the form set forth on Exhibit 7(c) attached hereto.

         In rendering their opinion as aforesaid, such counsel may rely upon 
an opinion or opinions, each dated the Closing Date, of other counsel 
retained by them or the Company as to laws of any jurisdiction other than the 
United States, the State of New York, the Commonwealth of Pennsylvania and 
the State of Delaware, provided that (1) each such local counsel is 
reasonably acceptable to you, (2) such reliance is expressly authorized by 
each opinion so relied upon and a copy of each such opinion is delivered to 
you and is, in form and substance, satisfactory to you and your counsel, and 
(3) such counsel shall state in their opinion that they believe that they and 
the Underwriter are justified in relying thereon. 

         (d)  You shall have received on the Closing Date an opinion of 
Arthur Andersen LLP, special tax advisor to the Company, satisfactory in form 
and substance to you, to the effect that (i) the descriptions of the Federal 
income tax conclusions contained in the Prospectus under the caption "Federal 
Income Tax Considerations" are correct in all material respects, and the 
discussion contained therein fairly summarizes the Federal income tax 
considerations that may be material to a holder of the common shares; (ii) 
assuming the Company is operated in accordance with the assumptions and 
representations of management regarding its activities and intended 
activities, the Company will continue to qualify as a REIT under the Code; 
and (iii) the Operating Partnership and the Title Holding Partnerships will 
be treated for Federal income tax purposes as partnerships and not as 
associations taxable as corporations or as publicly-traded partnerships.

         (e)  You shall have received on the Closing Date an opinion of 
Battle Fowler LLP, counsel for the Underwriter, dated the Closing Date and 
addressed to you, with respect to the Registration Statement, the Prospectus 
and this Agreement and such other related matters as you may request. 

         (f)  You shall have received comfort letters, including, but not 
limited to, certain agreed upon procedures, addressed to you and dated the 
date hereof and the Closing Date from Arthur Andersen LLP and Zelenkofske 
Axelrod & Company Ltd., independent public accountants, substantially in the 
forms heretofore approved by you. The comfort letters dated the Closing Date 
shall include language in scope and substance substantially as set forth on 
Exhibit 7(f).

         (g)  (i) No stop order suspending the effectiveness of the
Registration Statement shall have been issued and no proceedings for that
purpose shall have been taken or, to the knowledge of the Company or the
Underwriter, shall be contemplated by the Commission at or prior to the Closing
Date; (ii) there shall not have been any change in the beneficial interest of
the Company nor any material increase in the short-term or long-term debt of the
Company (other than in the ordinary course of business) from that set forth or
contemplated in the Registration Statement or the Prospectus (or any amendment
or supplement thereto); (iii) there shall not have been, since the respective
dates as of which information is given in the Registration Statement and 

                                       18

<PAGE>

the Prospectus (or any amendment or supplement thereto), except as may 
otherwise be stated in the Registration Statement and Prospectus (or any 
amendment or supplement thereto), any material adverse change in the 
condition (financial or other), business, prospects, properties, net worth or 
results of operations of the Properties or the Company and the Subsidiaries 
taken as a whole; (iv) the Company and the Subsidiaries shall not have any 
liabilities or obligations, direct or contingent (whether or not in the 
ordinary course of business), that are material to the Company and the 
Subsidiaries, taken as a whole, other than those reflected in the 
Registration Statement or the Prospectus (or any amendment or supplement 
thereto); and (v) all the representations and warranties of the Company and 
the Operating Partnership contained in this Agreement shall be true and 
correct on and as of the date hereof and on and as of the Closing Date as if 
made on and as of the Closing Date, and you shall have received a 
certificate, dated the Closing Date and signed by the chief executive officer 
and the chief financial officer of the Company (or such other officers as are 
acceptable to you), to the effect set forth in this Section 7(g) and in 
Section 7(h) hereof. 

         (h)  The Company shall not have failed at or prior to the Closing 
Date to have performed or complied with any of its agreements herein 
contained and required to be performed or complied with by it hereunder at or 
prior to the Closing Date. 

         (i)  The Shares shall have been listed or approved for listing upon 
notice of issuance on the American Stock Exchange. 

         (j)  The Company  and the Operating Partnership shall have furnished 
or caused to be furnished to you such further certificates and documents as 
you shall have reasonably requested. 

    All such opinions, certificates, letters and other documents will be in 
compliance with the provisions hereof only if they are satisfactory in form 
and substance to you and your counsel. 

    Any certificate or document signed by any officer of the Company and the 
Operating Partnership and delivered to you, or to counsel for the 
Underwriter, shall be deemed a representation and warranty by the Company or 
the Operating Partnership, as applicable, to each Underwriter as to the 
statements made therein. 

    8.   Expenses.  The Company agrees to pay the following costs and expenses
and all other costs and expenses incident to the performance by it of its
obligations hereunder:  (i) the preparation, printing or reproduction, and
filing with the Commission of the Registration Statement (including financial
statements and exhibits thereto), each Prepricing Prospectus, the Prospectus,
and each amendment or supplement to any of them; (ii) the printing (or
reproduction) and delivery (including postage, air freight charges and charges
for counting and packaging) of such copies of the Registration Statement, each
Prepricing Prospectus, the Prospectus, and all amendments or supplements to any
of them as may be reasonably requested for use in connection with the offering
and sale of the Shares; (iii) the preparation, printing, authentication,
issuance and delivery of certificates for the Shares, including any stamp taxes
in connection with the original issuance and sale of the Shares; (iv) if
required, the printing (or reproduction) and delivery of this Agreement, the
preliminary and supplemental Blue Sky Memoranda and all other agreements or
documents printed (or reproduced) and delivered in connection with the offering
of the Shares; (v) 

                                       19

<PAGE>

the listing of the Shares on the American Stock Exchange; (vi) if required, 
the registration or qualification of the Shares for offer and sale under the 
securities or Blue Sky laws of the several states as provided in Section 4(g) 
hereof (including the reasonable fees, expenses and disbursements of counsel 
for the Underwriter relating to the preparation, printing or reproduction, 
and delivery of the preliminary and supplemental Blue Sky Memoranda and such 
registration and qualification); (vii) if required, the filing fees and the 
fees and expenses of counsel for the Underwriter in connection with any 
filings required to be made with the National Association of Securities 
Dealers, Inc.; (viii) the transportation and other expenses incurred by or on 
behalf of Company representatives in connection with presentations to 
prospective purchasers of the Shares; and (ix) the fees and expenses of the 
Company's accountants and the fees and expenses of counsel (including local 
and special counsel) for the Company. 

    9.   Effective Date of Agreement.  This Agreement shall become effective: 
(i) upon the execution and delivery hereof by the parties hereto; or (ii) if, 
at the time this Agreement is executed and delivered, it is necessary for the 
Registration Statement or a post-effective amendment thereto to be declared 
effective before the offering of the Shares may commence, when notification 
of the effectiveness of the Registration Statement or such post-effective 
amendment has been released by the Commission.  Until such time as this 
Agreement shall have become effective, it may be terminated by the Company, 
by notifying you, or by you, by notifying the Company. 

    10.  Default of Underwriter.  If the Underwriter shall fail or refuse to 
purchase the Shares that it is obligated to purchase hereunder on the Closing 
Date, this Agreement will terminate without liability on the part of the 
Company.  Any action taken under this paragraph shall not relieve the 
Underwriter from liability in respect of any such default of the Underwriter 
under this Agreement.

    Any notice under this Section 10 may be given by telegram, telecopy or 
telephone but shall be subsequently confirmed by letter. 

    11.  Termination of Agreement.  This Agreement shall be subject to 
termination in your absolute discretion, without liability on the part of the 
Underwriter to the Company, by notice to the Company, if prior to the Closing 
Date or any Option Closing Date (if different from the Closing Date and then 
only as to the Additional Shares), as the case may be, (i) trading in 
securities generally on the New York Stock Exchange, the American Stock 
Exchange or the Nasdaq National Market shall have been suspended or 
materially limited, (ii) a general moratorium on commercial banking 
activities in New York or Pennsylvania shall have been declared by either 
federal or state authorities, or (iii) there shall have occurred any outbreak 
or escalation of hostilities or other international or domestic calamity, 
crisis or change in political, financial or economic conditions, the effect 
of which on the financial markets of the United States is such as to make it, 
in your judgment, impracticable or inadvisable (x) to commence or continue 
the offering of the units of the Trust to the public, or (y) to enforce 
contracts for the sale of the units of the Trust by the Trust. Notice of such 
termination may be given to the Company by telegram, telecopy or telephone 
and shall be subsequently confirmed by letter. 

    12.  Information Furnished by the Underwriter.  The Company and the
Operating Partnership acknowledge and agree that the statements set forth in the
last paragraph on the cover 

                                       20

<PAGE>

page, the stabilization legend on the inside cover page and the statements in 
the first and third paragraphs under the caption "Underwriting" in any 
Prepricing Prospectus and in the Prospectus, constitute the only information 
furnished by or on behalf of the Underwriter as such information is referred 
to in Sections 5(b) and 6 hereof.

    13.  Miscellaneous.  Except as otherwise provided in Sections 5, 10 and 
11 hereof, notice given pursuant to any provision of this Agreement shall be 
in writing and shall be delivered (i) if to the Company or the Operating 
Partnership, at the office of the Company at 16 Campus Boulevard, Newtown 
Square, Pennsylvania 19073, Attention:  Gerard H. Sweeney, President and 
Chief Executive Officer; or (ii) if to you, in care of Smith Barney Inc., 388 
Greenwich Street, New York, New York 10013, Attention: Manager, Investment 
Banking Division. 

    This Agreement has been and is made solely for the benefit of the 
Underwriter, the Company, its trustees and officers, the Operating 
Partnership and the other controlling persons referred to in Section 6 hereof 
and their respective successors and assigns, to the extent provided herein, 
and no other person shall acquire or have any right under or by virtue of 
this Agreement. Neither the term "successor" nor the term "successors and 
assigns" as used in this Agreement shall include a purchaser from the 
Underwriter of any of the Shares in his status as such purchaser. 

    14.  Applicable Law; Counterparts.  This Agreement shall be governed by 
and construed in accordance with the laws of the State of New York applicable 
to contracts made and to be performed within the State of New York. 

    This Agreement may be signed in various counterparts which together 
constitute one and the same instrument.  If signed in counterparts, this 
Agreement shall not become effective unless at least one counterpart hereof 
shall have been executed and delivered on behalf of each party hereto.  

                                       21

<PAGE>

    Please confirm that the foregoing correctly sets forth the agreement 
among the Company, the Operating Partnership and the Underwriter. 

                                  Very truly yours,


                                  BRANDYWINE REALTY TRUST


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


                                  BRANDYWINE OPERATING PARTNERSHIP, L.P.

                                  By:  Brandywine Realty Trust,
                                       its general partner


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


Confirmed as of the date first
above mentioned. 

SMITH BARNEY INC.


    By:/s/ Jeffrey Horowitz
       ---------------------------
    Name: Jeffrey Horowitz
    Title: Director

<PAGE>

                                    Schedule 5(d)

                                Transaction Documents


    Identified herein are the documents that constitute the "Transaction 
Documents" referenced in this Underwriting Agreement. 

1.  Agreement of Sale between O'Neill Properties Group, L.P. ("Assignor") and
    the Canada Life Assurance Company and the Assignment of Agreement of Sale
    with Assignor, relating to 500 and 501 Business Center Drive, Fort
    Washington, PA. 

<PAGE>

                                    SCHEDULE 5(e)

                             Subsidiaries of the Company

Brandywine Operating Partnership, a Delaware limited partnership

Fifteen Horsham, L.P., a Pennsylvania limited partnership

C/N Oaklands Limited Partnership I, a Pennsylvania limited partnership

Newtech IV Limited Partnership, a Pennsylvania limited partnership

Newtech III Limited Partnership, a Pennsylvania limited partnership

LC/N Keith Valley Limited Partnership I, a Pennsylvania limited partnership

LC/N Horsham Limited Partnership, a Pennsylvania limited partnership

Nichols Landsdale Limited Partnership III, a Pennsylvania limited partnership

Witmer Operating Partnership I, L.P., a Delaware limited partnership

C/N Leedom Limited Partnership II, a Pennsylvania limited partnership

C/N Oaklands Limited Partnership III, a Pennsylvania limited partnership

Iron Run Limited Partnership V, a Pennsylvania limited partnership

C/N Iron Run Limited Partnership III, a Pennsylvania limited partnership

Brandywine Realty Partners, a Pennsylvania general partnership 

Brandywine Holdings I, Inc., a Pennsylvania corporation

Brandywine Holdings II, Inc., a Pennsylvania corporation

Brandywine Holdings III, Inc., a Pennsylvania corporation

Brandywine Realty Services Corporation, a Pennsylvania corporation

Brandywine Acquisitions, LLC

Brandywine - Main Street, LLC

Brandywine Leasing, LLC

1100 Brandywine, LLC 

<PAGE>

                                    SCHEDULE 5(g)


                         Ownership Interests in Subsidiaries


                                     See Attached


<PAGE>
                                  SUBSIDIARIES
 
<TABLE>
<CAPTION>
                                                                                  PARTNERS
PARTNERSHIP SUBSIDIARIES                                                     (CAPITAL/PROFITS)
- --------------------------------------------------------  --------------------------------------------------------
<S>                                                       <C>
Brandywine Operating Partnership, a Delaware limited      BRT--G.P.--97.888% 
  partnership                                             BRT--L.P.--.718% (1) 
                                                          Class A (other than BRT)--L.P.--1.394%
Fifteen Horsham, L.P., a Pennsylvania limited             WOP--G.P.--1% (2) 
  partnership                                             BOP--L.P. 1% (3) 
                                                          WOP-- L.P.--98%
C/N Oaklands Limited Partnership I, a Pennsylvania        WOP--G.P.--88.9% / 98.9% 
  limited partnership                                     BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1% (4)
Newtech IV Limited Partnership, a Pennsylvania limited    WOP--G.P.--88.9% / 98.9% 
  partnership                                             BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1%
Newtech III Limited Partnership, a Pennsylvania limited   WOP--G.P.--88.9% / 63.9% 
  partnership                                             BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1% 
                                                          N.E. Leasing--0% / 35% (5)
LC/N Keith Valley Limited Partnership I, a Pennsylvania   WOP--G.P.--88.9% / 98.9% 
  limited partnership                                     BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1%
LC/N Horsham Limited Partnership, a Pennsylvania limited  WOP--G.P.--88.9% / 98.9% 
  partnership                                             BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1%
Nichols Lansdale Limited Partnership III, a Pennsylvania  WOP--G.P.--88.9% / 98.9% 
  limited partnership                                     BOP--L.P.--.1% / .1%
                                                          TNC--L.P.--11% / 1%
Witmer Operating Partnership I, L.P., a Delaware limited  Brandywine Holdings I, Inc.--G.P.--
  partnership                                             1%/1%
                                                          BOP--L.P.--99%/99%
C/N Leedom Limited Partnership II, a Pennsylvania         BOP--89% / 99% 
  limited partnership                                     SSI--L.P.--11% / 1% (6)
  
C/N Oaklands Limited Partnership III, a Pennsylvania      Brandywine Holdings II-G.P.--
  limited partnership                                     2% / 2% (7) 
                                                          BOP--L.P.--87% / 97% 
                                                          TNC--L.P.--11% / 1%
Iron Run Limited Partnership V, a Pennsylvania limited    Brandywine Holdings III-G.P.--2% / 2% 
  partnership                                             (7) 
                                                          BOP--L.P.--87% / 97% 
                                                          TNC--L.P.--11% / 1%
C/N Iron Run Limited Partnership III, a Pennsylvania      BOP--G.P.--2% / 2% 
  limited partnership                                     BOP--L.P.--87% / 97% 
                                                          TNC--L.P.--11% / 1%
Brandywine Realty Partners, a Pennsylvania general        BOP--G.P.--70% / 98% 
  partnership                                             Outside partner--30% / 2%
  
</TABLE>
 
- ------------------------
 
1   BRT and Brandywine Holdings I, Inc. (a Pennsylvania corporation and a
    wholly-owned subsidiary of BRT) collectively own Class A Units that
    constitute the percentage shown above.
 
2   Brandywine Holdings I, Inc. (a Pennsylvania corp. and a wholly-owned
    subsidiary of BRT) is General Partner of WOP with a 1%/1% interest.
 
3   Brandywine Operating Partnership ("BOP") is a Delaware limited partnership.
 
4   The Nichols Company ("TNC") is a Pennsylvania corporation.
 
5   N. E. Leasing is not an affiliate. N.E. Leasing is entitled to 35% of the
    partnership's residual cash flow. "Residual Cash Flow" upon the sale of the
    property equals the gross sales price less 

                                       26
<PAGE>

    (i) outstanding indebtedness, (ii) reserves and (iii) repayment of capital 
    and accrued equity of WOP, BRT Witmer and TNC (estimated to equal 
    $1,338,468 as of July 1, 1996).
 
6   Safeguard Scientifics, Inc. ("SSI") is a Pennsylvania corporation.

7   A Pennsylvania corporation and a wholly-owned subsidiary of BRT.
 
<TABLE>
<CAPTION>
CORPORATE SUBSIDIARIES                                                          SHAREHOLDERS
- --------------------------------------------------------  --------------------------------------------------------
<S>                                                       <C>
Brandywine Holdings, I, Inc., a Pennsylvania corporation  BRT--100%
Brandywine Holdings II, Inc., a Pennsylvania corporation  BRT--100%
Brandywine Holdings III, Inc., a Pennsylvania             BRT--100%
  corporation
Brandywine Realty Services Corporation, a Pennsylvania    BRT--9,473 Preferred Shares 27 Common Shares
  corporation                                             BRSP(1)--500 Common Shares
</TABLE>
 
- ------------------------
 
1   BRSP is Brandywine Realty Services Partnership.
 
<TABLE>
<CAPTION>
LIMITED LIABILITY COMPANY SUBSIDIARIES                                                                  MEMBERS
- ----------------------------------------------------------------------------------------------------  ------------
<S>                                                                                                   <C>
Brandywine Acquisitions, LLC ("BA LLC")                                                               BOP--100%
Brandywine--Main Street, LLC                                                                          BOP--99% 
                                                                                                      BA LLC--1%
1100 Brandywine, LLC                                                                                  BOP--100%
Brandywine Leasing, LLC                                                                               BOP--100%
</TABLE>
 
                                           27

<PAGE>

                                     EXHIBIT 7(c)


                  Form of Opinion of Pepper, Hamilton & Scheetz LLP


                                     See Attached
<PAGE>




                             September 16, 1997



SMITH BARNEY INC.
388 Greenwich Street
New York, New York 10013

         Re:  Brandywine Realty Trust Public Offering of
              786,840 Common Shares of Beneficial
              Interest, $0.01 par value per share, 
              pursuant to Registration Statement on
              Form S-3 (Registration No. 333-20991)     

Ladies and Gentlemen:

         We have acted as counsel to Brandywine Realty Trust, a Maryland real 
estate investment trust (the "Company"), in connection with the execution and 
delivery by the Company of the Underwriting Agreement dated September 11, 
1997 (the "Agreement") by and among the Company, Brandywine Operating 
Partnership, L.P., a Delaware limited partnership (the "Operating 
Partnership"), and Smith Barney Inc., as underwriter (the "Underwriter"), and 
the filing by the Company with the United States Securities and Exchange 
Commission pursuant to the Securities Act of 1933, as amended (the "Act"), of 
the Company's Registration Statement on Form S-3 (No. 333-20991) (together 
with all pre- and post-effective amendments thereto to date, the 
"Registration Statement"), relating to the sale by the Company of 786,840
 common shares (the "Shares") of beneficial interest, $0.01 par value (the 
"Common Shares") of the Company.

         This opinion is delivered to you pursuant to Section 7(c) of the 
Agreement. Capitalized terms used herein but not otherwise defined herein 
have the meanings ascribed to them in the Agreement.

         In connection with this opinion, we have examined the Agreement, the 
Registration Statement, the Prospectus, originals, or copies reproduced or 
certified to our satisfaction, of such trust, corporate, limited liability 
and partnership organizational documents, agreements, records and other 
documents of the Company and each subsidiary identified on Schedule 5(e) to 

<PAGE>

SMITH BARNEY INC.
Page 2
September 16, 1997


the Agreement (collectively, the "Subsidiaries"), the instruments and 
documents delivered at the Closing, and such other documents, records and 
instruments as we have deemed necessary to form the basis for the opinions 
hereinafter expressed.  We have also made such examination of laws, of 
certificates of public officials and of certificates of officers of the 
Company and the Subsidiaries, and investigations of fact, as we have deemed 
necessary to enable us to render this opinion.  As to matters of fact 
relevant to the opinions herein expressed, we have assumed the accuracy and 
completeness of, and have relied solely upon, the representations and 
warranties of the Company and the Operating Partnership contained in the 
Agreement and in such certificates of officers of the Company or the 
Subsidiaries (including, without limitation, the certificate attached hereto 
as Exhibit A (the "Officer's Certificate")) and certificates of public 
officials.  

         Where matters are stated to be "to our knowledge" or otherwise known 
to us or words of similar import, our knowledge is limited to the actual 
knowledge of those attorneys in our office who have directly participated in 
the transactions contemplated by the Agreement and the documents listed on 
Exhibit B (collectively, the "Transaction Documents"), the review of 
documents provided to us by the Company, the Operating Partnership and the 
Subsidiaries in connection with such transactions and inquiries of officers 
of the Company, the Operating Partnership, and the Subsidiaries, the results 
of which are reflected in the Officer's Certificate.  We have not 
independently verified the accuracy of the matters set forth in the written 
statements or certificates upon which we have relied, nor have we undertaken 
any lien, intellectual property, suit or judgment searches or searches of 
court dockets in any jurisdiction. 

         We have assumed:  (i) the due execution and delivery, pursuant to 
due authorization, of the Agreement by the parties thereto other than the 
Company and the Operating Partnership, (ii) the genuineness of the signatures 
of, and the authority of, persons signing the Agreement on behalf of all 
parties thereto other than the Company and the Operating Partnership, (iii) 
the genuineness of all signatures and the authenticity and completeness of 
all records, certificates, instruments and documents submitted to us as 
originals and (iv) the conformity to authentic originals of all records, 
certificates, instruments and 

<PAGE>

SMITH BARNEY INC.
Page 3
September 16, 1997

documents submitted to us as certified, conformed, photostatic or facsimile 
copies thereof.

         No opinion is rendered as to matters not specifically referred to 
herein and under no circumstances are you to infer from anything stated or 
not stated herein any opinion with respect to which such reference is not 
made.

         We have further assumed that the consideration required to be paid 
for the issuance of the Shares and the outstanding Common Shares pursuant to 
resolutions of the Board of Trustees of the Company authorizing the issuance 
of those securities has in fact been paid to and received by the Company.

         Statements in this opinion as to the legality, validity, binding 
effect or enforceability of agreements, instruments and documents are subject 
(i) to limitations as to enforceability imposed by bankruptcy, 
reorganization, moratorium, fraudulent conveyance, insolvency and other 
similar laws and related court decisions of general application relating to 
or affecting creditors' rights generally, (ii) to equitable principles 
limiting the availability of equitable remedies, and (iii) as to rights to 
indemnity and contribution, to limitations that may exist under federal and 
state laws or the public policy underlying such laws.

         Insofar as, and to the extent, this opinion relates to matters 
governed by the laws of the State of Maryland in paragraphs 1, 3, 4, 8, 9, 
10, 11 and 16 below, we have relied solely upon, and such opinions are 
subject to the limitations and assumptions contained in, the opinion of 
Ballard Spahr Andrews & Ingersoll addressed to you, dated the date hereof, a 
copy of which is attached hereto as Exhibit C and is being delivered to you 
contemporaneously with this opinion.  We believe that both we and you are 
justified in relying upon such opinion.

         Except as indicated above with respect to Maryland law, this opinion 
is limited solely to matters governed by the laws of the Commonwealth of 
Pennsylvania, the Delaware General Corporation Law, the Delaware Revised 
Uniform Limited Partnership Act and the federal laws of the United States, 
without regard to conflict or choice of law principles, and the references 
herein to laws, statutes and regulations shall be interpreted consistent 

<PAGE>

SMITH BARNEY INC.
Page 4
September 16, 1997

with such limitation.  In rendering our opinion as to the enforceability of 
the Agreement in paragraph 8, we have assumed that New York law is the same 
as the Delaware General Corporation Law.  

         Based upon and subject to the foregoing and the qualifications and 
limitations set forth below, we are of the opinion that:

         1.   The Company is a real estate investment trust duly formed and 
existing under and by virtue of the laws of the State of Maryland and is in 
good standing with the State Department of Assessments and Taxation of Maryland.
The Company has the full trust power and authority to own, lease and operate 
its properties and to conduct its business substantially as described in the 
Registration Statement and the Prospectus and is duly registered and 
qualified to conduct its business and is in good standing in each 
jurisdiction or place where the nature of its properties or the conduct of 
its business as described in the Registration Statement and the Prospectus 
requires such registration or qualification, except where the failure to so 
qualify would not have a material adverse effect on the condition (financial 
or otherwise), business, prospects, properties, net worth or results of 
operations of the Company.

         2.   Each of the Subsidiaries is a corporation, limited liability 
company, limited partnership or general partnership presently subsisting or in 
good standing, as the case may be, under the laws of its jurisdiction of 
incorporation or formation, with full corporate, limited liability company or 
partnership power and authority, as the case may be, to own, lease, and 
operate its properties and to conduct its business as described in the 
Registration Statement and the Prospectus, and is duly registered and 
qualified to conduct its business in each jurisdiction or place where the 
nature of its properties or the conduct of its business as described in the 
Registration Statement and the Prospectus requires such registration or 
qualification, except where the failure to so qualify would not have a 
material adverse effect on the condition (financial or otherwise), business, 
prospects, properties, net worth or results of operations of such Subsidiary.

<PAGE>

SMITH BARNEY INC.
Page 5
September 16, 1997

         3.   The authorized beneficial interest of the Company (including, but
not limited to, any options, warrants or other securities convertible into or 
exchangeable shares of beneficial interest of the Company) conforms in all 
material respects to the description thereof in the Registration Statement 
and the Prospectus and in Exhibit D hereto.  All the outstanding shares of 
beneficial interest of the Company outstanding prior to the issuance of the 
Shares have been duly authorized and validly issued, are fully-paid and 
nonassessable, and are free of any preemptive or similar statutory rights 
under Maryland law.

         4.   The Shares have been duly authorized and, when issued and 
delivered to the Underwriter against payment therefor in accordance with the 
terms of the Agreement, will be validly issued, fully-paid and nonassessable 
and free of any preemptive or similar statutory rights under Maryland law.

         5.   To our knowledge, except as set forth on Exhibit D hereto, there 
are no outstanding options, warrants or other written rights calling for the 
issuance of, or any written commitment, plan or arrangement to issue, any 
shares of beneficial interest of the Company or any security convertible into 
or exchangeable or exercisable for shares of beneficial interest of the 
Company.  To our knowledge, there is no holder of any security of the Company 
or any other person who has the right, contractual or otherwise, to cause the 
Company to sell or otherwise issue to him, or to permit him to underwrite the 
sale of, the Shares or the right to have any Common Shares or other 
securities of the Company included in the Registration Statement or the 
right, as a result of the filing of the Registration Statement or sale of the 
Shares as provided in the Agreement, to require registration under the Act of 
any Common Shares or other securities of the Company.  

         6.   All of the outstanding units of limited and general partnership
interests of the Operating Partnership (the "Units"), and the partnership 
interests in each of the other Subsidiaries that is a partnership, were 
created under the agreements forming the Operating Partnership and such other 
Subsidiaries, as the case may be, and all of the issued and outstanding 
shares of capital stock of each of the Subsidiaries that is a corporation 
have been duly authorized and validly issued, and are fully paid and 
nonassessable.  To our knowledge, 

<PAGE>

SMITH BARNEY INC.
Page 6
September 16, 1997

except as described in the Registration Statement and the Prospectus (or any 
amendment or supplement thereto) or Exhibit E attached hereto, all such 
Units, partnership interests and shares of capital stock are owned by the 
Company directly, or indirectly through one of the Subsidiaries, free and 
clear of any security interest, lien, adverse claim, equity or other 
encumbrance, and, to our knowledge, the Company's ownership interest in the 
Operating Partnership, and the Company's and the Operating Partnership's 
respective ownership interest in each of the Subsidiaries, is as set forth on 
Exhibit E attached hereto (without giving effect to the issuance of the 
Shares).   To our knowledge, except as described in Exhibit D or the 
Registration Statement and the Prospectus (or any amendment or supplement 
thereto), there are no outstanding options, warrants or other written rights 
calling for the issuance of, or any written commitment, plan or arrangement 
to issue, any equity interests in any Subsidiary, or any security convertible 
into or exchangeable or exercisable for any such interests in any such 
Subsidiary.  The terms of the Units conform in all material respects to 
statements and descriptions thereof contained in the Prospectus dated 
November 25, 1996 and incorporated by reference in the Registration Statement 
(other than in respect of the number of outstanding GP Units and Class A 
Units and the ownership thereof).  The Company is the sole general partner of 
the Operating Partnership.

         7.   All offers and sales of Units by the Operating Partnership and 
the offers and sales by the Company of Common Shares, in each case prior to the
date of the Prospectus, have been duly registered under the Act, or were 
issued in transactions exempt from the registration requirements of the Act.

         8.   The Company has the full trust power and authority, and the 
Operating Partnership has the requisite partnership power and authority, to 
enter into the Agreement and each Transaction Document to which it is a party 
and, in the case of the Company, to issue, sell and deliver the Shares to the 
Underwriter as provided in the Agreement, and each of the Agreement and each 
Transaction Document has been duly and validly authorized, executed and 
delivered by the Company and the Operating Partnership, as applicable, and is 
the legal, valid and binding agreement of each of the Company and the 
Operating 

<PAGE>

SMITH BARNEY INC.
Page 7
September 16, 1997

Partnership, as applicable, enforceable against them in accordance with its 
terms.

         9.   The form of certificate representing the Common Shares is in due 
and proper form and complies with all applicable Maryland statutory 
requirements.

         10.  To our knowledge, neither the Company nor any of the Subsidiaries
is in violation of its respective Declaration of Trust, certificate or articles
of incorporation or bylaws, partnership agreement or other organizational 
documents or is in default in the performance of any material obligation, 
agreement or condition contained in any bond, debenture, note or other 
evidence of indebtedness.

         11.  With respect to the Company and the Subsidiaries, neither the 
offer, sale or delivery of the Shares, the execution, delivery or performance 
of the Agreement, nor the consummation of the transactions contemplated thereby
by the Company or the Subsidiaries, as applicable:  (i) required or requires, 
with respect to the Company or the Subsidiaries, any consent, approval, 
authorization or other order of, or registration or filing with, any court, 
regulatory body, administrative agency or other governmental body, agency or 
official, or the American Stock Exchange (except (a) such as has been made or 
obtained, (b) clearance by the National Association of Securities Dealers, 
Inc. in connection with the purchase and sale of the Shares by the 
Underwriter (as to which we express no opinion) and (c) as to state 
securities or Blue Sky laws, as to which we express no opinion); (ii) 
conflicted with, or conflicts with or constituted or constitutes a breach of, 
or a default under, the Declaration of Trust, Articles Supplementary, 
certificate or articles of incorporation or bylaws, partnership agreement or 
other organizational documents, of any of such entities, or under any 
material agreement or instrument known to us at the time the Registration 
Statement was declared effective, which in each case has been filed as an 
exhibit to the Registration Statement to which any of such entities is a 
party or by which any of them or any of their respective properties or assets 
are bound; (iii) violated or violates any statute, law, regulation or, to our 
knowledge, ruling, judgment, injunction, order or decree applicable to any of 
such entities or any of their respective properties or assets; or (iv) to our 
knowledge, resulted or will 

<PAGE>

SMITH BARNEY INC.
Page 8
September 16, 1997

result in the creation or imposition of any material lien, charge or 
encumbrance upon the property or assets of any of such entities pursuant to 
the terms of any agreement or instrument to which any of them is a party or 
by which any of them may be bound or to which any of the property or assets 
of any of them is subject.

         12.  Neither the Company nor any of the Subsidiaries is required to be
registered under the Investment Company Act of 1940, as amended.

         13.  To our knowledge, (i) there are no proceedings pending or 
threatened against the Company or any of the Subsidiaries or any of their 
respective trustees, directors or officers in their capacity as such, or to 
which the Company or any of the Subsidiaries or any of their respective 
trustees, directors or officers in their capacity as such, or any of their 
respective properties or assets, is subject, that are of a character which is 
required to be described in the Registration Statement or Prospectus (or any 
amendment or supplement thereto) and (ii) there are no agreements, contracts, 
indentures, leases or other instruments, that are required to be described in 
the Registration Statement or the Prospectus (or any amendment or supplement 
thereto) or to be filed as an exhibit to the Registration Statement that are 
not described or filed as required by the Act.

         14.  To our knowledge and assuming the application of the net proceeds
of the Offering in a manner consistent with the statements in the Prospectus 
under the heading "Use of Proceeds," and except as described in or 
contemplated by the Prospectus, none of the Subsidiaries is contractually 
prohibited, directly or indirectly, from paying any dividends or 
distributions to the Company, from making any other distribution on such 
Subsidiary's capital stock or other equity interests, from repaying to the 
Company any loans or advances to such Subsidiary from the Company or, subject 
to transfer restrictions contained in the loan documents relating to the 
Credit Facility and additional secured indebtedness identified in the 
Prospectus dated July 22, 1997 relating to an offering of Common Shares by 
the Company, from transferring any of such Subsidiary's property or assets to 
the Company or any of the other Subsidiaries.

<PAGE>

SMITH BARNEY INC.
Page 9
September 16, 1997

         15.  The Registration Statement and the Prospectus and any supplements
or amendments thereto (except for the financial statements and the notes 
thereto and the schedules and other financial, accounting and statistical data 
included therein or excluded therefrom, as to which we do not express any 
opinion) comply as to form in all material respects with the requirements of 
the Act, except that we express no opinion, view or belief as to the exhibits 
(or form thereof) to the Registration Statement, or to the accuracy, 
completeness or fairness of the statements contained in the Registration 
Statement except as and to the extent expressly set forth in paragraph 16 
hereof.

         16.  The statements in the Registration Statement and Prospectus set 
forth under the headings "Prospectus Supplement Summary - The Company," "The 
Company," "Recent Developments," "Description of Shares of Beneficial 
Interest" and "Certain Provisions of Maryland Law and of the Company's 
Declaration of Trust and Bylaws" in the Prospectus, to the extent they 
constitute matters of law or descriptions or summaries of contracts, 
agreements or other legal documents, or refer to or constitute statements of 
matters of law, descriptions of statutes, rules or regulations, or legal 
conclusions, each, respectively, fairly presents in all material respects the 
information disclosed therein.  The descriptions of agreements that are 
summarized in the Prospectus dated November 25, 1996 and incorporated by 
reference in the Registration Statement under the headings "Operating 
Partnership Agreement" and "BRP General Partnership Agreement" (other than in 
respect of the number of outstanding GP Units and Class A Units and the 
ownership thereof) conform in all material respects to the provisions of such 
agreements and each such description, respectively, fairly presents in all 
material respects the information contained therein and required to be 
therein disclosed.

         We have been advised by the staff of the Commission that the 
Registration Statement and all post-effective amendments, if any, have become 
effective under the Act as of February 14, 1997 and, to our knowledge after 
reasonable inquiry, no stop order suspending the effectiveness of the 
Registration Statement has been issued and no proceedings for that purpose 
are pending before or contemplated by the Commission, and any required filing 
of the Prospectus has been made.

<PAGE>

SMITH BARNEY INC.
Page 10
September 16, 1997

         We have been advised by the American Stock Exchange, Inc. that the 
Shares are duly authorized for listing, subject to official notice of 
issuance.

         In addition, we hereby advise you that we have participated in 
conferences with officers and other representatives of the Company, the 
Operating Partnership and the other Subsidiaries, representatives of the 
Company's independent public accountants and you and your counsel in 
connection with the preparation of the Registration Statement at which the 
contents of the Registration Statement, the Prospectus therein, and related 
matters were reviewed and discussed and, although we have not verified 
independently and, therefore, do not assume any responsibility, explicitly or 
implicitly, for the accuracy, completeness or fairness of the statements 
contained in the Registration Statement or the Prospectus (except as and to 
the extent expressly set forth in paragraph 16), on the basis of the 
foregoing, nothing has come to our attention that has caused us to believe 
that the Registration Statement, at the time the Registration Statement 
became effective, contained an untrue statement of a material fact or omitted 
to state a material fact required to be stated therein or necessary to make 
the statements therein not misleading or that the Prospectus (or an amendment 
or supplement thereto), as of their respective dates and as of the date 
hereof, contained any untrue statement of a material fact or omitted to state 
a material fact necessary to make the statements therein, in light of the 
circumstances in which they were made, not misleading (it being understood 
that no opinion, view or belief is hereby expressed with respect to the 
financial statements and the notes thereto and the schedules and other 
financial, accounting and statistical data included in or excluded from the 
Registration Statement or the Prospectus or as to the exhibits (or the form 
thereof) to the Registration Statement).

         The opinions expressed in paragraph numbers (1) through (16) above 
are subject in all respects to the following additional qualifications:

         1.   We have assumed that the parties to the Agreement and the 
Transaction Documents, other than the Company and the Operating Partnership, 
have complied and will continue to comply with all requirements of good 
faith, fair dealing and 

<PAGE>

SMITH BARNEY INC.
Page 11
September 16, 1997

conscionability, and have acted and will continue to act in a commercially 
reasonable manner, and that there has not been any mutual mistake of fact or 
misunderstanding, fraud, duress or undue influence between the parties to the 
Agreement or the Transaction Documents.

         2.   No opinion is given as to the right to exercise remedies upon 
the happening of a non-material breach of the Agreement or any of the 
Transaction Documents (including material breaches of non-material 
provisions).

         3.   We express no opinion as to the effect of other agreements or 
understandings among the parties, written or oral, which are not known to us, 
or any usage of trade or course of prior dealing among the parties or 
whether, in either case, any of the foregoing would define, supplement or 
qualify the terms of the Agreement or any of the Transaction Documents.

         4.   No opinion is given as to any provision in the Agreement or any 
of the Transaction Documents that purports to:

              a.   Require the payment or reimbursement of any fee, cost, 
expense or other item that is unreasonable in nature or amount;

              b.   Preclude modification of the Agreement or any of the 
Transaction Documents through conduct, custom or course of performance, 
action or dealing; or

              c.   Define, waive or set standards for good faith, 
reasonableness, commercial reasonableness, fair dealing, diligence or the 
like.

         This opinion is rendered only to the addressees set forth above and 
is solely for the benefit of such addressees and may not be quoted to or 
relied upon by any other person or entity 

<PAGE>

SMITH BARNEY INC.
Page 12
September 16, 1997

without the express written prior consent of a partner of this firm.  


                             Very truly yours,

                             PEPPER, HAMILTON & SCHEETZ LLP



                             By:_______________________
                                  A Partner 
<PAGE>

                                      Exhibit A

                               BRANDYWINE REALTY TRUST

                                OFFICER'S CERTIFICATE


         The undersigned, Anthony A. Nichols, Sr., Gerard H. Sweeney and Mark 
S. Kripke, do hereby certify that they are officers of Brandywine Realty 
Trust, a Maryland real estate investment trust (the "Company"), and, as such, 
are duly authorized to execute this Certificate individually and on behalf of 
the Company.

         This Certificate is intended for the use and reliance by Pepper 
Hamilton & Scheetz LLP, counsel to the Company, in connection with the 
preparation of their opinion (the "Opinion") being delivered pursuant to the 
Underwriting Agreement dated September 11, 1997 by and among the Company, 
Brandywine Operating Partnership, L.P. and Smith Barney Inc., as underwriter 
(the "Agreement").  All capitalized terms used herein but not otherwise 
defined have the meanings ascribed to them in the Agreement.

         Each of the undersigned hereby certifies after reasonable inquiry 
that:
                                           
         1.   Except as described in the Prospectus, there are no outstanding 
options, warrants or other rights calling for the issuance of, and there is 
no commitment, plan or arrangement to issue, any shares of beneficial 
interest of the Company or any security convertible into or exchangeable or 
exercisable for shares of beneficial interest of the Company.  Except as 
described in the Prospectus, there is no holder of any security of the 
Company or any other person who has the right, contractual or otherwise, to 
cause the Company to sell or otherwise issue to them, or to permit them to 
underwrite the sale of, the Shares or the right to have any Common Shares or 
other securities of the Company included in the Registration Statement or the 
right, as a result of the filing of the Registration Statement or sale of the 
Shares as contemplated by the Agreement, to require registration under the 
Act of any Common Shares or other securities of the Company.

         2.   The Company has received the consideration required to be paid 
to it for the issuance of the Shares and all other outstanding shares of 
beneficial interest of the Company.

                                         A-1
<PAGE>

         3.   The Company's ownership interest in the Operating Partnership 
and the Company's and the Operating Partnership's respective percentage 
interest and ownership in each of the Subsidiaries is as set forth on Exhibit 
E to the Opinion. Except as described in the Registration Statement and the 
Prospectus (or any amendment or supplement thereto), there are no outstanding 
options, warrants or other rights calling for the issuance of, or any 
commitment, plan or arrangement to issue, any equity interests in any 
Subsidiary, or any security convertible into, or exchangeable or exercisable 
for, any such interests in any such Subsidiary.  The Company is the sole 
general partner of the Operating Partnership.

         4.   Each of the Company and each of the Subsidiaries has all 
necessary governmental authorizations, approvals, orders, licenses, 
certificates, franchises and permits of and from all governmental regulatory 
officials and bodies (except where the failure so to have any such 
authorizations, approvals, orders, licenses, certificates, franchises or 
permits, individually or in the aggregate, would not have a material adverse 
effect on the condition, financial or otherwise, business, properties, net 
worth or results of operations of the Company or such Subsidiary, 
respectively) to own their respective properties and to conduct their 
respective businesses as now being conducted and proposed to be conducted.

         5.   Neither the Company nor any of the Subsidiaries is in violation 
of its respective Declaration of Trust, certificate or articles of 
incorporation or bylaws, partnership agreement or other organizational 
documents, or, to the best of the undersigned's knowledge, is in default in 
the performance of any obligation, agreement or condition contained in any 
bond, debenture, note or other evidence of indebtedness.

         6.   With respect to the Company and the Subsidiaries, neither the 
issuance and offer, sale or delivery of the Shares, the execution, delivery 
or performance of the Agreement nor the consummation of the transactions 
contemplated thereby by the Company or the Subsidiaries, as applicable,  (i) 
conflicted with, conflicts or will conflict with or constituted, constitutes 
or will constitute a breach of, or a default under the partnership agreement 
or other organizational documents, of any of such entities, or under any 
agreement, indenture, lease or other instrument to which any of such entities 
is a party or by which any of them or any of their respective properties may 
be bound, or (ii) resulted or will result in the creation or imposition of 
any lien, charge or encumbrance upon any property or assets of any of such 
entities pursuant to the terms of any agreement or instrument to which any of 
them is a party or by which any of 

                                         A-2
<PAGE>

them may be bound or to which any of the property or assets of any of them is 
subject.

         7.   To the best of the undersigned's knowledge, neither the Company 
nor any Subsidiary is in violation of any law, ordinance, administrative or 
governmental rule or regulation applicable to the Company or any of the 
Subsidiaries or of any decree of any court or governmental agency or body 
having jurisdiction over the Company or any of the Subsidiaries.

         8.   None of the Subsidiaries is currently contractually prohibited, 
directly or indirectly, from paying any dividends to the Company, from making 
any other distribution on such Subsidiary's capital stock or other equity 
interests, from repaying to the Company any loans or advances to such 
Subsidiary from the Company or from transferring any of such Subsidiary's 
property or assets to the Company or any of the other Subsidiaries, except as 
described in or contemplated by the Prospectus.

         In addition, the undersigned has participated in conferences in 
connection with the preparation of the Registration Statement at which the 
contents of the Registration Statement, and the Prospectus therein, and 
related matters were reviewed and discussed and nothing has come to the 
undersigned's attention that has caused the undersigned to believe that the 
Registration Statement, at the time the Registration Statement became 
effective, contained an untrue statement of a material fact or omitted to 
state a material fact required to be stated therein or necessary to make the 
statements therein not misleading or that Prospectus or any amendment or 
supplement thereto, as of their respective dates, and as of the date hereof, 
as the case may be, contained any untrue statement of a material fact or 
omitted to state a material fact necessary in order to make the statements 
therein, in the light of the circumstances under which they were made, not 
misleading.

                                         A-3
<PAGE>

         IN WITNESS WHEREOF, the undersigned has appropriately executed this
Certificate this 16th day of September, 1997.



                        /s/ Anthony A. Nichols, Sr.   
                         ------------------------------
                        Anthony A. Nichols, Sr.
                        Chairman of the Board


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


                        /s/ Mark S. Kripke            
                         ------------------------------
                        Mark S. Kripke   
                        Chief Financial Officer and Secretary 

                                         A-4
<PAGE>

                                      Exhibit B

                                Transaction Documents

         Identified herein are the documents that constitute the "Transaction
Documents" referenced in the opinion of which this Exhibit forms a part.

1.  Agreement of Sale between O'Neill Properties Group, L.P. ("Assignor") and 
    the Canada Life Assurance Company and the Assignment of Agreement of Sale 
    with Assignor, relating to 500 and 501 Business Center Drive, Fort 
    Washington, PA.
 
                                         B-1

<PAGE>

                                      Exhibit D

                              List of Options, Warrants
                           and Other Convertible Securities



                                       WARRANTS
Name of Holder                                      Number of Underlying
                                                           Common Shares
Safeguard Scientifics (Delaware), Inc.                    241,560
Anthony A. Nichols, Sr. and                                16,773
  Barbara Nichols                                                
Anthony A. Nichols, Sr.                                    40,000
John P. Gallagher                                          40,000
Brian F. Belcher                                           40,000
Gerard H. Sweeney                                         100,000
John Adderly                                               10,000
Anthony A. Nichols, Jr.                                     5,000
Lisa Reidy                                                  5,000
Donald Miksit                                               3,333
Turkey Vulture Fund XIII, Ltd.                             80,439
RAI Real Estate Advisors, Inc.                            133,333
                                                           -------
Total                                                     715,438
                                                           -------
                                                           -------

                                       OPTIONS

Gerard H. Sweeney                                          46,666
                                                            ------
                                                            ------
Total                                                      46,666

                                        UNITS

The Nichols Company                                         2,742
Safeguard Scientifics(Delaware), Inc.                     252,387
Additional Limited Partners                                17,999
Units reserved for 89/11 arrangement                       44,322
                                                           -------
Total                                                     317,450
                                                           -------
                                                           -------
                                         D-2
<PAGE>

                                        OTHER

As discussed on page 6 of the Company's Proxy Statement
dated April 7, 1997, one-half of the $10,000 annual trustee
fee is payable in Common Shares

 
 
                                         D-3
<PAGE>

                                      Exhibit E

                                     SUBSIDIARIES


                                                PARTNERS
PARTNERSHIP SUBSIDIARIES                        (Capital/Profits)
Brandywine Operating Partnership, a             BRT -- G.P. - 97.888%
Delaware limited partnership                    BRT -- L.P. - .718% (1)
                                                Class A (other than BRT) -
                                                L.P. - 1.394%

Fifteen Horsham, L.P., a Pennsylvania           WOP -- G.P. - 1% (2)
limited partnership                             BOP -- L.P. 1% (3)
                                                WOP -- L.P. - 98%

C/N Oaklands Limited Partnership I, a           WOP -- G.P. - 88.9% / 98.9%
Pennsylvania limited partnership                BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1% (4)

Newtech IV Limited Partnership, a               WOP -- G.P. - 88.9% / 98.9%
Pennsylvania limited partnership                BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1%

Newtech III Limited Partnership, a              WOP -- G.P. - 88.9% / 63.9%
Pennsylvania limited partnership                BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1%
                                                N.E. Leasing -- 0% / 35% (5)

LC/N Keith Valley Limited Partnership I, a      WOP -- G.P. - 88.9% / 98.9%
Pennsylvania limited partnership                BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1%

LC/N Horsham Limited Partnership, a             WOP -- G.P. - 88.9% / 98.9%
Pennsylvania limited partnership                BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1%

Nichols Lansdale Limited Partnership III,       WOP -- G.P. - 88.9% / 98.9%
a Pennsylvania limited partnership              BOP -- L.P. - .1% / .1%
                                                TNC -- L.P. - 11% / 1%

Witmer Operating Partnership I, L.P., a         Brandywine Holdings I, Inc.
                                                -- G.P. - 1%/1%

Delaware limited partnership                    BOP -- L.P. - 99%/99%
                                                

C/N Leedom Limited Partnership II, a            BOP -- 89% / 99%
Pennsylvania limited partnership                SSI -- L.P. - 11% / 1% (6)

C/N Oaklands Limited Partnership III, a         Brandywine Holdings II-G.P. --
Pennsylvania limited partnership                2% / 2% (7)
                                                BOP -- L.P. - 87% / 97%
                                                TNC -- L.P. - 11% / 1%
                                                

Iron Run Limited Partnership V, a               Brandywine Holdings III-G.P. --
Pennsylvania limited partnership                2% / 2% (7)
                                                BOP -- L.P. - 87% / 97%
                                                TNC -- L.P. - 11% / 1%

C/N Iron Run Limited Partnership III, a         BOP -- G.P. - 2% / 2%
Pennsylvania limited partnership                BOP -- L.P. - 87% / 97%
                                                TNC -- L.P. - 11% / 1%

Brandywine Realty Partners, a Pennsylvania      BOP -- G.P. - 70% / 98%
general partnership                             Outside partner -- 30% / 2% 

    1.   BRT and Brandywine Holdings I, Inc. (a Pennsylvania corporation and a
         wholly-owned subsidiary of BRT) collectively own Class A Units that
         constitute the percentage shown above.
    2.   Brandywine Holdings I, Inc. (a Pennsylvania corp. and a wholly-owned
         subsidiary of BRT) is General Partner of WOP with a 1%/1% interest.
    3.   Brandywine Operating Partnership ("BOP") is a Delaware limited 
         partnership.
    4.   The Nichols Company ("TNC") is a Pennsylvania corporation.

                                         E-1

<PAGE>

    5.   N. E. Leasing is not an affiliate.  N.E. Leasing is entitled to 35% 
         of the partnership's residual cash flow. "Residual Cash Flow" upon 
         the sale of the property equals the gross sales price less 
         (i) outstanding indebtedness, (ii) reserves and (iii) repayment of 
         capital and accrued equity of WOP, BRT Witmer and TNC (estimated to 
         equal $1,338,468 as of July 1, 1996).
    6.   Safeguard Scientifics, Inc. ("SSI") is a Pennsylvania corporation.
    7.   A Pennsylvania corporation and a wholly-owned subsidiary of BRT.




CORPORATE SUBSIDIARIES                          SHAREHOLDERS

Brandywine Holdings, I, Inc., a                 BRT -- 100%
Pennsylvania corporation                            

Brandywine Holdings II, Inc., a                 BRT -- 100%
Pennsylvania corporation                            

Brandywine Holdings III, Inc., a                BRT -- 100%
Pennsylvania corporation                            

Brandywine Realty Services                      BRT -- 9,473 Preferred Shares
Corporation, a Pennsylvania                      27 Common Shares
corporation                                     BRSP(1) -- 500 Common Shares 


    1.   BRSP is Brandywine Realty Services Partnership.




LIMITED LIABILITY COMPANY SUBSIDIARIES          MEMBERS
                                                
Brandywine Acquisitions, LLC ("BA               BOP -- 100%
LLC")                                               

Brandywine - Main Street, LLC                   BOP --  99%
                                                BA LLC -- 1%

1100 Brandywine, LLC                            BOP -- 100%

Brandywine Leasing, LLC                         BOP -- 100%


                                         E-2 




<PAGE>

                                     EXHIBIT 7(f)


                           Form of Comfort Letter (excerpt)


                                     See Attached

<PAGE>

                                     EXHIBIT 7(f)


                    Additional Text of Closing Date Comfort Letter


    d.   With respect to the three-month periods ended December 31, 1995 and
         1996, we have:

         (i)    Read the unaudited results of operations -- operating data for
                the three-month periods ended December 31, 1995 and 1996, as 
                set forth on Page S-4 of the Prospectus Supplement dated 
                February 26, 1997.

         (ii)   Performed the procedures specified by the American Institute of
                Certified Public Accountants for a review of interim financial
                information as described in SAS No. 71, Interim Financial
                Information, on the attached unaudited consolidated balance
                sheets as of December 31, 1995 and 1996 and the unaudited
                condensed consolidated statements of operations, beneficiaries'
                equity and cash flows for the three-month periods ended
                December 31, 1995 and 1996 from which the unaudited amounts
                referred to in 7d(i) are derived.

         (iii)  Inquired of certain officials of the Company who have
                responsibility for financial and accounting matters whether
                (a) the unaudited results of operations -- operating data
                referred to in 7d(i) and the unaudited consolidated
                financial statements referred to in 7d(ii) are stated on a
                basis substantially consistent with that of the
                corresponding amounts in the audited consolidated financial
                statements of the Company incorporated by reference in the
                Registration Statement and (b) the unaudited results of
                operations -- operating data and the unaudited financial
                statements referred to in 7d(i) and 7d(ii), respectively,
                comply as to form in all material respects with the
                applicable accounting requirements of the Act, the Exchange
                Act, and the related published rules and regulations.

    The foregoing procedures do not constitute an audit conducted in accordance
    with generally accepted auditing standards.  Also, they would not
    necessarily reveal matters of significance with respect to the comments in
    the following paragraph.  Accordingly, we make no representations regarding
    the sufficiency of the foregoing procedures for your purposes.

8.  Nothing came to our attention as a result of the foregoing procedures,
    however, that caused us to believe that:

                (i)    Any material modifications should be made to the 
                       unaudited results of operations -- operating data or the
                       unaudited financial statements described in 7d(i) and 
                       7d(ii), respectively, for them to be in conformity with 
                       generally accepted accounting principles.

<PAGE>

                (ii)   The unaudited results of operations -- operating data 
                       or the unaudited financial statements described in 7d(i)
                       and 7d(ii), respectively, do not comply as to form in
                       all material respects with the applicable accounting
                       requirements of the Act, the Exchange Act, and the 
                       related published rules and regulations.

                (iii)  At December 31, 1996, there was any change in the
                       capital stock, increase in long-term debt, or decrease
                       in consolidated net assets or beneficiaries' equity of
                       the Company as compared with amounts shown in the
                       September 30, 1996, unaudited balance sheet
                       incorporated by reference in the Registration
                       Statement, or for the period from October 1, 1996 to
                       December 31, 1996, there were any decreases, as
                       compared to the corresponding period in the preceding
                       year, in revenues or in the total or per-share amounts
                       of income before extraordinary items or of net income,
                       except in all instances for changes, increases or
                       decreases that the Registration Statement discloses
                       have occurred or may occur.

9.  Company officials have advised us that no consolidated financial statements
    of the Company as of any date or for any period subsequent to December 31,
    1996, are available; accordingly, the procedures carried out by us with
    respect to changes in financial statement items after December 31, 1996,
    have been, of necessity, even more limited than those with respect to the
    periods referred to in 7d.  We have inquired of certain officials of the
    Company who have responsibility for financial and accounting matters
    whether (a) at February 21, 1997, there was any change in the capital
    stock, increase in long-term debt or any decreases in consolidated total
    assets or beneficiaries' equity of the Company as compared with amounts
    shown on the December 31, 1996 unaudited consolidated balance sheet
    attached to this letter, or (b) for the period from January 1, 1997, to
    February 21, 1997, there were any decreases, as compared with the
    corresponding period in the preceding year, in revenue or in the total or
    per share amounts of income before extraordinary items or of net income. 
    On the basis of these inquiries and our reading of the minutes, nothing
    came to our attention that caused us to believe that there was any such
    change, increase, or decrease, except in all instances for changes,
    increases, or decreases that the Registration Statement discloses have
    occurred or may occur and except (i) for the increase in long-term debt to
    $53,530,000 (as a result of the assumption of debt in connection with the
    acquisition of the Columbia Properties) as of February 21, 1997 and
    (ii) that officials of the Company have informed us that they are unable to
    determine whether there were any decreases in the total or per share
    amounts of income before extraordinary items or of net income for the
    period from January 1, 1997 through February 21, 1997, inclusive, and the
    corresponding period in the preceding year, because no complete
    consolidated financial statements as of any date or for any period
    subsequent to December 31, 1996 are available.

<PAGE>

                                     Exhibit 23.1



                      CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by 
reference in the Prospectus Supplement dated September 11, 1997 (to the 
Prospectus dated February 14, 1997 (the "Prospectus")) of Brandywine Realty 
Trust (the "Company") of:  our report dated February 22, 1997, on the 
consolidated financial statements of the Company, included in the Company's 
Annual Report on Form 10-K for the year ended December 31, 1996; our report 
dated April 12, 1996 on the combined financial statements of SSI/TNC 
Properties for the year ended December 31, 1995 included in the Company's 
Prospectus filed on November 27, 1996 relating to the Company's Registration 
Statement on Form S-11 (No. 333-13969) declared effective November 25, 1996; 
our report dated June 14, 1996, on the statement of revenue and certain 
expenses of LibertyView for the year ended December 31, 1995 included in the 
Company's Prospectus filed on November 27, 1996 relating to the Company's 
Registration Statement on Form S-11 (No. 333-13969) declared effective 
November 25, 1996; our reports dated October 31, 1996 on the combined 
statements of revenue and certain expenses of Equivest Management Inc. 
Acquisition Properties, the Commonwealth of Pennsylvania State Employees 
System Properties, and of Delaware Corporate Center included in the Company's 
Prospectus filed on November 27, 1996 relating to the Company's Registration 
Statement on Form S-11 (No. 333-13969) declared effective November 25, 1996; 
our report dated February 11, 1997 on the combined financial statements of 
revenue and certain expenses of Columbia Acquisition Properties for the year 
ended December 31, 1996, included in the Company's Form 8-K/A (No.1) dated 
February 13, 1997 and Form 8-K/A (No. 2) dated February 24, 1997; our report 
dated January 29, 1997 on the combined financial statements of revenue and 
certain expenses of Main Street Properties for the year ended December 31, 
1996, included in the Company's Form 8-K/A (No. 1) dated April 29, 1997; our 
report dated May 29, 1997 on the combined financial statements of revenue and 
certain expenses of TA Properties for the year ended December 31, 1996, 
included in the Company's Form 8-K dated June 9, 1997; our report dated June 
3, 1997 on the combined financial statements of revenue and certain expenses 
of Emmes Properties for the year ended December 31, 1996, included in the 
Company's Form 8-K dated June 9, 1997; our report dated June 23, 1997 on the 
combined financial statements of revenue and certain expenses of 748 & 855 
Springdale Drive for the year ended December 31, 1996 included in the 
Company's Form 8-K dated June 26, 1997; our reports dated July 21, 1997 on 
the combined financial statements of revenue and certain expenses of Berwyn 
Park Properties and Green Hills Properties for the year ended December 31, 
1996 included in the Company's Quarterly Report  on Form 10-Q for the six 
months ended June 30, 1997; our report dated August 21, 1997 on the combined 
financial statements of revenue and certain expenses of 500 & 501 Office 
Center Drive for the year ended December 31, 1996 included in the Company's 
Form 8-K dated September 10, 1997 and to all references to our Firm included 
in the Prospectus or Prospectus Supplement.

                                  ARTHUR ANDERSEN LLP

Philadelphia, Pa.,
September 10, 1997

<PAGE>


Exhibit 23.2


                            INDEPENDENT AUDITORS' CONSENT


   We hereby consent to the reference to our firm and our report dated June 19,
1997 with respect to the financial statements of the Greentree Executive Campus
Acquisition Properties under the "Experts" heading of a Prospectus 
Supplement to the Prospectus dated Februrary 14, 1997 of Brandywine Realty Trust
to be filed with the Securities and Exchange Commission and consent to the
filing of this Consent as an Exhibit to a Current Report on Form 8-K of
Brandywine Realty Trust.




                    /s/ Zelenkofske, Axelrod & Company, Ltd.
                    --------------------------
                    Zelenkofske, Axelrod & Company, Ltd.


Jenkintown, Pennsylvania
September 11, 1997


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