SECURITY CAPITAL PACIFIC TRUST
8-K, 1997-03-26
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>
 
=============================================================================== 
                      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)   March 24, 1997
                                                          --------------


                         SECURITY CAPITAL PACIFIC TRUST
                         ------------------------------
             (Exact Name of Registrant as Specified in its Charter)



                                    Maryland
                                    --------
                 (State or Other Jurisdiction of Incorporation)


         1-10272                                          74-6056896
- --------------------------                                ----------
 (Commission File Number)                   (I.R.S. Employer Identification No.)


       7777 Market Center Avenue, El Paso, Texas          79912
       -----------------------------------------          -----
       (Address of Principal Executive Offices)         (Zip Code)


                                 (915) 877-3900
                                 --------------
              (Registrant's Telephone Number, Including Area Code)


                                 Not Applicable
                                 --------------
         (Former Name or Former Address, if Changed Since Last Report)


=============================================================================== 
<PAGE>
 
Item 5.  Other Events.

     On March 24, 1997, Security Capital Pacific Trust, a Maryland real estate
investment trust ("PTR"), announced that it had entered into a definitive
agreement relating to a transaction (the "Transaction") pursuant to which PTR
will acquire the operations and business of its REIT manager and property
manager currently being conducted through wholly owned subsidiaries of Security
Capital Group Incorporated ("Security Capital"). A copy of the Merger and
Issuance Agreement, dated as of March 24, 1997, between PTR and Security Capital
(the "Merger Agreement") is included as an exhibit to this report and is
incorporated herein by reference. Also included as exhibits to this report and
incorporated herein by reference are the following forms of agreements relating
to the Transaction and which will be entered into at the closing of the
Transaction: (i) the Third Amended and Restated Investor Agreement between PTR
and Security Capital, (ii) the Administrative Services Agreement between PTR and
SC Group Incorporated and (iii) the Protection of Business Agreement between PTR
and Security Capital. A copy of the press release announcing the Merger
Agreement and describing the Transaction is included as an exhibit to this
report and is incorporated herein by reference.

Item 7.  Financial Statements and Exhibits.

     (c)  Exhibits.

     Exhibit No.    Document Description
     -----------    --------------------

     2.1            Merger and Issuance Agreement, dated as of March 24, 1997,
                    between Security Capital Pacific Trust and Security Capital
                    Group Incorporated

     10.1           Form of the Third Amended and Restated Investor Agreement
                    between Security Capital Pacific Trust and Security Capital
                    Group Incorporated

     10.2           Form of the Administrative Services Agreement between
                    Security Capital Pacific Trust and SC Group Incorporated

     10.3           Form of the Protection of Business Agreement between
                    Security Capital Pacific Trust and Security Capital Group
                    Incorporated

     99.1           Press Release dated March 24, 1997
<PAGE>
 
                                  SIGNATURES

     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 hereunto duly authorized.


                                      SECURITY CAPITAL PACIFIC TRUST



Dated:  March 26, 1997                By: /s/ JEFFREY A. KLOPF
                                          ---------------------
                                          Jeffrey A. Klopf
                                          Senior Vice President and Secretary

<PAGE>

                                                                   EXHIBIT 2.1
 
===============================================================================

                         MERGER AND ISSUANCE AGREEMENT

                           DATED AS OF MARCH 24, 1997

                                 BY AND BETWEEN

                         SECURITY CAPITAL PACIFIC TRUST

                                      AND

                      SECURITY CAPITAL GROUP INCORPORATED

===============================================================================
<PAGE>

                               TABLE OF CONTENTS
                               -----------------
                                                                            Page
                                                                            ----
ARTICLE I  DEFINITIONS.....................................................    1
     SECTION 1.1    DEFINITIONS............................................    1

ARTICLE II  THE MERGERS, WARRANT ISSUANCE AND RIGHTS OFFERING..............    6
     SECTION 2.1    THE MERGERS............................................    6
     SECTION 2.2    WARRANT ISSUANCE.......................................    6
     SECTION 2.3    THE RIGHTS OFFERING....................................    7

ARTICLE III  REPRESENTATIONS AND WARRANTIES OF PTR.........................    8
     SECTION 3.1    ORGANIZATION AND QUALIFICATION.........................    8
     SECTION 3.2    CAPITALIZATION.........................................    8
     SECTION 3.3    ISSUANCE OF SECURITIES.................................    9
     SECTION 3.4    AUTHORITY; NON-CONTRAVENTION; APPROVALS................    9
     SECTION 3.5    REGISTRATION STATEMENTS AND PROXY
                      STATEMENT AND PROSPECTUS.............................   10
     SECTION 3.6    DISCLOSURE, FINANCIAL STATEMENTS AND
                      ABSENCE OF CERTAIN CHANGES...........................   11
     SECTION 3.7    ABSENCE OF UNDISCLOSED LIABILITIES.....................   11
     SECTION 3.8    BROKERS AND FINDERS....................................   11

ARTICLE IV  REPRESENTATIONS AND WARRANTIES OF SCG..........................   12
     SECTION 4.1    ORGANIZATION AND QUALIFICATION.........................   12
     SECTION 4.2    CAPITALIZATION.........................................   12
     SECTION 4.3    ISSUANCE OF SECURITIES.................................   13
     SECTION 4.4    AUTHORITY; NON-CONTRAVENTION; APPROVALS................   13
     SECTION 4.5    FINANCIAL STATEMENTS...................................   14
     SECTION 4.6    ABSENCE OF CERTAIN CHANGES OR EVENTS...................   15
     SECTION 4.7    REGISTRATION STATEMENTS AND PROXY
                      STATEMENT AND PROSPECTUSES...........................   15
     SECTION 4.8    TAXES..................................................   15
     SECTION 4.9    ABSENCE OF UNDISCLOSED LIABILITIES.....................   17
     SECTION 4.10   LITIGATION.............................................   17
     SECTION 4.11   NO VIOLATION OF LAW....................................   17
     SECTION 4.12   INSURANCE..............................................   18
     SECTION 4.13   EMPLOYEE BENEFIT PLANS.................................   18
     SECTION 4.14   INTELLECTUAL PROPERTY..................................   18
     SECTION 4.15   LABOR..................................................   19
     SECTION 4.16   BROKERS AND FINDERS....................................   19
     SECTION 4.17   INVESTMENT COMPANY ACT.................................   19


                                      -i-

<PAGE>
 
<TABLE>
<CAPTION> 
<S>                                                                         <C>
     SECTION 4.18   ADEQUACY OF SCG CONSIDERATION..........................   19
     SECTION 4.19   INVESTMENT IN SECURITIES...............................   19
     SECTION 4.20   TITLE TO ASSETS; NO REAL PROPERTY......................   20
     SECTION 4.21   PROJECTIONS............................................   20

ARTICLE V  CONDUCT OF BUSINESSES PENDING THE MERGER CLOSING................   21
     SECTION 5.1    CONDUCT OF BUSINESSES..................................   21
     SECTION 5.2    CONDUCT OF BUSINESS OF PTR.............................   23

ARTICLE VI  ADDITIONAL AGREEMENTS..........................................   23
     SECTION 6.1    ACCESS TO INFORMATION..................................   23
     SECTION 6.2    PROXY STATEMENT AND REGISTRATION
                      STATEMENT............................................   24
     SECTION 6.3    SHAREHOLDERS' APPROVAL.................................   24
     SECTION 6.4    AFFILIATE AGREEMENTS...................................   25
     SECTION 6.5    EXCHANGE...............................................   25
     SECTION 6.6    EXPENSES...............................................   25
     SECTION 6.7    AGREEMENT TO COOPERATE.................................   25
     SECTION 6.8    PUBLIC STATEMENTS......................................   25
     SECTION 6.9    CORRECTIONS TO THE SCG WARRANT
                      REGISTRATION STATEMENT AND SCG
                      WARRANT PROSPECTUS...................................   26
     SECTION 6.10   VOTING OF SHARES.......................................   26
     SECTION 6.11   CONFIDENTIALITY........................................   26
     SECTION 6.12   PERSONNEL..............................................   28
     SECTION 6.13   PRORATIONS.............................................   28
     SECTION 6.14   TAX MATTERS............................................   29
     SECTION 6.15   STANDSTILL.............................................   30

ARTICLE VII  CONDITIONS....................................................   31
     SECTION 7.1    CONDITIONS TO EACH PARTY'S OBLIGATIONS.................   31
     SECTION 7.2    CONDITIONS TO OBLIGATIONS OF PTR.......................   32
     SECTION 7.3    CONDITIONS TO OBLIGATIONS OF SCG.......................   33

ARTICLE VIII  TERMINATION, AMENDMENT AND WAIVER............................   34
     SECTION 8.1    TERMINATION............................................   34
     SECTION 8.2    EFFECT OF TERMINATION..................................   35
     SECTION 8.3    AMENDMENT..............................................   35
     SECTION 8.4    WAIVER.................................................   35

ARTICLE IX  SURVIVAL AND REMEDY; INDEMNIFICATION...........................   35
     SECTION 9.1    INDEMNIFICATION........................................   35
     SECTION 9.2    LIMITATION OF INDEMNIFICATION..........................   36
</TABLE>

                                     -ii-
<PAGE>
 
<TABLE>
<CAPTION>
<S>                                                                         <C>
     SECTION 9.3    NOTICE OF CLAIMS; ASSUMPTION OF DEFENSE................   36
     SECTION 9.4    SETTLEMENT OR COMPROMISE...............................   37
     SECTION 9.5    FAILURE OF INDEMNIFYING PARTY TO ACT...................   37
     SECTION 9.6    SURVIVAL...............................................   37
     SECTION 9.7    WAIVER OF COUNTERCLAIMS FOR
                     INDEMNIFICATION.......................................   37

ARTICLE X  GENERAL PROVISIONS..............................................   37
     SECTION 10.1   NOTICES................................................   37
     SECTION 10.2   INTERPRETATION.........................................   38
     SECTION 10.3   MISCELLANEOUS..........................................   38
     SECTION 10.4   COUNTERPARTS...........................................   39
     SECTION 10.5   PARTIES IN INTEREST....................................   39
     SECTION 10.6   LIMITATION OF LIABILITY................................   39
     SECTION 10.7   NO PRESUMPTION AGAINST DRAFTER.........................   39
</TABLE>

                                    EXHIBITS

     EXHIBIT I      AGREEMENT AND PLAN OF MERGER
     EXHIBIT II     WARRANT AGREEMENT
     EXHIBIT III    WARRANT ISSUANCE AGREEMENT
     EXHIBIT IV     AMENDED AND RESTATED PTR INVESTOR AGREEMENT
     EXHIBIT V      ADMINISTRATIVE SERVICES AGREEMENT
     EXHIBIT VI     LICENSE AGREEMENT
     EXHIBIT VII    PROTECTION OF BUSINESS AGREEMENT
     EXHIBIT VIII   OPINION OF MAYER, BROWN & PLATT

                                   SCHEDULES

     SCHEDULE 3.2(a)    EXCEPTIONS TO ASSESSABILITY
     SCHEDULE 3.2(b)    SUBSCRIPTIONS, OPTIONS, ETC.
     SCHEDULE 3.4(b)    PTR REQUIRED CONSENTS
     SCHEDULE 4.4(b)    SCG REQUIRED CONSENTS
     SCHEDULE 4.10      SCG SUBSIDIARY LITIGATION
     SCHEDULE 4.14      SCG SUBSIDIARIES' INTELLECTUAL PROPERTY
     SCHEDULE 4.20      ASSETS AND PERSONNEL
     SCHEDULE 7.1       AGREEMENTS TO BE TERMINATED

                                     -iii-
<PAGE>
 
                         MERGER AND ISSUANCE AGREEMENT

     THIS MERGER AND ISSUANCE AGREEMENT (this "Agreement"), is entered into as
of March 24, 1997 by and between Security Capital Pacific Trust, a Maryland real
estate investment trust ("PTR"), and Security Capital Group Incorporated, a
Maryland corporation ("SCG").

     WHEREAS, the Board of Directors of SCG and the Board of Trustees of PTR
have each approved this Agreement and the transactions contemplated hereby upon
the terms and subject to the conditions set forth herein; and

     WHEREAS, it is intended that pursuant to this Agreement, among other
things, SCG will cause its subsidiaries engaged in the conduct of the businesses
of managing the portfolio of and the properties owned by PTR to be merged with
and into a subsidiary of PTR in exchange for certain securities of PTR.

     NOW, THEREFORE, in consideration of the premises and the representations,
warranties, covenants and agreements contained herein, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto, intending to
be legally bound hereby, agree as follows:

                                   ARTICLE I
                                  DEFINITIONS

     SECTION 1.1  DEFINITIONS.  As used in this Agreement, the following terms
shall have the following meanings (such meanings to be equally applicable to
both the singular and plural forms of the terms defined):

     "Affiliate Agreement" shall have the meaning set forth in Section 6.4.
     
     "Affiliated Group" shall have the meaning set forth in Section 4.8.
     
     "Agreement and Plan of Merger" shall have the meaning set forth in Section
2.1.

     "Code" shall mean the Internal Revenue Code of 1986, as amended.

     "Commission" shall mean the Securities and Exchange Commission.

     "Confidential Material" shall have the meaning set forth in Section
6.11(a).

     "Current Market Price" of the PTR Common Shares and the SCG Class B Common
Shares for any day shall mean the last reported sales price on such day, or, if
no sale takes place on such day, the average of the reported closing bid and
asked prices on such day, in either case as reported on the New York Stock
Exchange or, if such security is not listed or admitted for
<PAGE>
 
trading on the New York Stock Exchange, on the principal national securities
exchange on which such security is listed or admitted for trading or, if not
listed or admitted for trading on any national securities exchange, on the
National Market System of the National Association of Securities Dealers, Inc.
Automated Quotations System or, if such security is not quoted on such National
Market System, the average of the closing bid and asked prices on such day in
the over-the-counter market as reported by the National Association of
Securities Dealers, Inc. Automated Quotations System or, if bid and asked prices
for such security on such day shall not have been reported through the National
Association of Securities Dealers, Inc. Automated Quotations System, in the case
of the PTR Common Shares, the average of the bid and asked prices on such day as
furnished by any New York Stock Exchange member firm regularly making a market
in PTR Common Shares selected for such purpose by the Chief Executive Officer of
PTR or the PTR Board, or, in the case of the SCG Class B Common Shares, the fair
market value of the SCG Class B Common Shares as determined in good faith by the
SCG Board.

     "Employee Benefit Plans" shall have the meaning set forth in Section 4.13.
     
     "Employees" shall have the meaning set forth in Section 4.13.
     
     "Environmental Laws" means the Resource Conservation and Recovery Act and
the Comprehensive Environmental Response Compensation and Liability Act and
other federal laws governing the environment as in effect on the date of this
Agreement together with their implementing regulations as of the date of this
Agreement, and all state, regional, county, municipal and other local laws,
regulations and ordinances as in effect on the date hereof that are equivalent
or similar to the federal laws recited above or that purport to regulate
Hazardous Materials.

     "Exchange" shall mean the New York Stock Exchange, another national
securities exchange or the National Market System of the National Association of
Securities Dealers, Inc. Automated Quotations System.

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

     "Fair Market Value" shall mean the average of the daily Current Market
Prices of a PTR Common Share during the five (5) consecutive Trading Days
commencing six Trading Days prior to the PTR Shareholders' Approval Record Date.

     "Hazardous Materials" shall mean (a) any petroleum or petroleum products,
radioactive materials, asbestos in any form that is or could become friable,
polychlorinated biphenyls and, only to the extent it exists at levels which are
considered hazardous to human health, radon gas and (b) any chemicals, materials
or substances defined as or included in the definition of "hazardous
substances," "toxic substances," "toxic pollutants," "contaminants" or
"pollutants" or words of similar import, under any applicable Environmental
Laws.


                                       2
<PAGE>
 
     "Indemnified Parties" shall have the meaning set forth in Section 9.1.

     "Indemnifying Parties" shall have the meaning set forth in Section 9.1.

     "Intellectual Property" shall mean all United States and foreign patents,
patent applications, patent licenses, trade names, trademarks, trade name and
trademark registrations (and applications therefor), copyrights and copyright
registrations (and applications therefor), trade secrets, inventions, processes,
designs, know-how and formulae.

     "Losses" shall have the meaning set forth in Section 9.1.
     
     "Merger Closing" shall have the meaning set forth in Section 2.1.
     
     "Post-Closing Accrual Statement" shall have the meaning set forth in
Section 6.13.

     "Property Management Agreement" shall have the meaning set forth in Section
5.1(a).

     "Property Manager" shall mean SCG Realty Services Incorporated, a Texas
corporation.

     "Prorated Items" shall have the meaning set forth in Section 6.13.
     
     "Providing Party" shall have the meaning set forth in Section 6.11(a).
     
     "Proxy Statement" shall mean the definitive PTR proxy statement, including
the SCG Warrant Prospectus, to be filed with the Commission (i) as a proxy
statement by PTR and (ii) as a part of the SCG Warrant Registration Statement by
SCG.

     "PTR 10-K" shall have the meaning set forth in Section 3.6.
     
     "PTR Board" shall mean the Board of Trustees of PTR.

     "PTR Common Shares" shall mean the common shares of beneficial interest,
$1.00 par value per share, of PTR.

     "PTR Financial Statements" shall have the meaning set forth in Section 3.6.

     "PTR Prospectus" shall mean the prospectus, as amended and supplemented,
relating to the offering of PTR Common Shares pursuant to Section 2.3, which
will form a part of the PTR Registration Statement.

     "PTR Registration Statement" shall mean the registration statement on Form
S-3 of PTR, of which the PTR Prospectus will form a part, which has been or will
be filed with the Commission in order to register the offering of PTR Common
Shares pursuant to Section 2.3.

                                       3
<PAGE>
 
     "PTR Required Statutory Approvals" shall have the meaning set forth in
Section 3.4(c).

     "PTR Series A Preferred Shares" shall mean the Series A Cumulative
Convertible Redeemable Preferred Shares of Beneficial Interest, $1.00 par value
per share, of PTR.

     "PTR Series B Preferred Shares" shall mean the Series B Cumulative
Redeemable Preferred Shares of Beneficial Interest, $1.00 par value per share,
of PTR.

     "PTR Shareholders' Approval Record Date" shall mean the record date for
determination of the holders of PTR Common Shares entitled to vote with respect
to obtaining the PTR Shareholders' Approval.

     "PTR Shareholders' Approval" shall have the meaning set forth in Section
6.3.

     "PTR Special Committee" shall have the meaning set forth in Section 7.2(a).

     "Receiving Party" shall have the meaning set forth in Section 6.11(a).

     "REIT Management Agreement" shall have the meaning set forth in Section
5.1(a).

     "REIT Manager" shall mean Security Capital Pacific Incorporated, a Delaware
corporation.

     "Related Agreements" shall mean each of the agreements, instruments and
documents contemplated to be entered into in connection with this Agreement,
including, without limitation, the Agreement and Plan of Merger, the Warrant
Issuance Agreement, the Warrant Agreement, the Amended and Restated PTR Investor
Agreement, the Administrative Services Agreement, the License Agreement and the
Affiliate Agreements.

     "Representatives" shall have the meaning set forth in Section 6.11(a).

     "Rights Offering Amount" shall have the meaning set forth in Section 2.3.

     "Rights Offering Closing Date" shall mean the third business day following
the Rights Offering Expiration Date.

     "Rights Offering Expiration Date" shall have the meaning set forth in
Section 2.3.

     "SCG Board" shall mean the Board of Directors of SCG.

     "SCG Class B Common Shares" shall mean the shares of Class B common stock,
$.01 par value per share, of SCG.
<PAGE>
 
     "SCG Financial Statements" shall have the meaning set forth in Section 4.5.

     "SCG Proxy Statement" shall mean the definitive proxy statement mailed to
shareholders of SCG with respect to the meeting of shareholders of SCG to be
held in connection with the transactions contemplated by this Agreement.

     "SCG Required Statutory Approvals" shall have the meaning set forth in
Section 4.4(c).

     "SCG Shareholders' Approval" shall have the meaning set forth in Section
6.3.

     "SCG Subsidiaries" shall mean the REIT Manager and the Property Manager.

     "SCG Warrant Prospectus" shall mean the prospectus relating to the Warrant
Issuance pursuant to Section 2.2 which will form a part of the SCG Warrant
Registration Statement and the Proxy Statement.

     "SCG Warrant Registration Statement" shall mean the registration statement
on Form S-4 of SCG, of which the Proxy Statement and the SCG Warrant Prospectus
will form a part, to be filed with the Commission in order to register the
Warrant Issuance pursuant to Section 2.2.

     "SCG Warrants" shall have the meaning set forth in Section 2.2.

     "Securities Act" shall mean the Securities Act of 1933, as amended.

     "Subsidiary Financial Statements" shall have the meaning set forth in
Section 4.5.

     "Taxes" shall mean all taxes, charges, fees, levies or other assessments,
including, without limitation, income, gross receipts, excise, property, sales,
withholding, social security, occupation, use, service, service use, license,
payroll, franchise, transfer and recording taxes, fees and charges, imposed by
the United States, or any state, local or foreign government or subdivision or
agency thereof whether computed on a separate, consolidated, unitary, combined
or any other basis; and such term shall include any interest, fines, penalties
or additional amounts attributable or imposed on or with respect to any such
taxes, charges, fees, levies or other assessments.

     "Tax Returns" shall mean any return, report or other document or
information required to be supplied to a taxing authority in connection with
Taxes.

     "Termination Date" shall have the meaning set forth in Section 8.1(b).

     "Trading Day" shall mean any day on which the PTR Common Shares are traded
on the New York Stock Exchange, or if such securities are not listed or admitted
for trading on the New York Stock Exchange, on the principal national securities
exchange on which such


                                       5
<PAGE>
 
securities are listed or admitted, or if not listed or admitted for trading on
any national securities exchange, on the National Market System of the National
Association of Securities Dealers, Inc. Automated Quotations System, or if such
securities are not quoted on such National Market System, in the applicable
securities market in which the securities are traded.

     "Warrant Agreement" shall mean the Warrant Agreement between SCG and The
First National Bank of Boston, as warrant agent, substantially in the form of
Exhibit II hereto.

     "Warrant Issuance" shall have the meaning set forth in Section 2.2.
     
     "Warrant Issuance Agreement" shall mean the Warrant Issuance Agency
Agreement substantially in the form of Exhibit III hereto.

     "Warrant Issuance Date" shall mean the date established by the Board of
Directors of SCG as the date on which the SCG Warrants shall be delivered to the
issuance agent pursuant to the Warrant Issuance Agreement, which date shall be
within 30 days following the Warrant Issuance Record Date.

     "Warrant Issuance Record Date" shall have the meaning set forth in Section
2.2.

                                   ARTICLE II
               THE MERGERS, WARRANT ISSUANCE AND RIGHTS OFFERING

     SECTION 2.1  THE MERGERS. The events set forth in this Section 2.1 shall be
effected, upon the terms and subject to the conditions of this Agreement, as
soon as practicable after this Agreement and the transactions contemplated
hereby are approved by the shareholders of each of PTR and SCG (the "Merger
Closing").  It is the intention of the parties that each of the events set forth
in this Section 2.1 shall occur simultaneously.  PTR and SCG shall each take all
actions necessary to cause the SCG Subsidiaries to be merged with and into a
subsidiary of PTR, which subsidiary shall be a "qualified REIT subsidiary" of
PTR within the meaning of Section 856(i)(2) of the Code, on the terms and
conditions set forth in the agreement and plan of merger substantially in the
form of Exhibit I hereto (the "Agreement and Plan of Merger").  PTR shall issue
that number of PTR Common Shares in connection with the mergers described in
this Section 2.1 equal to the amount determined by dividing $75,838,457 by the
Fair Market Value of a PTR Common Share; provided, however, that in the event
that the Fair Market Value of a PTR Common Share is less than $21.63525, then
the number of PTR Common Shares issuable in connection with the mergers
described in this Section 2.1 shall be 3,505,319; and provided, further, that in
the event that the Fair Market Value of a PTR Common Share is more than
$27.11475, then the number of PTR Common Shares issuable in connection with the
mergers described in this Section 2.1 shall be 2,796,944.

     SECTION 2.2  WARRANT ISSUANCE.  SCG shall issue (the "Warrant Issuance")
warrants to purchase SCG Class B Common Shares (the "SCG Warrants") to holders
of PTR

                                       6
<PAGE>
 
Common Shares and PTR Series A Preferred Shares (in each case, other than those
owned by SCG) as of the Warrant Issuance Record Date on the terms and in the
manner described below. The SCG Warrants shall each (i) be exercisable for one
SCG Class B Common Share, (ii) have an exercise price per SCG Class B Common
Share equal to the Current Market Price of an SCG Class B Common Share on the
Warrant Issuance Date, (iii) shall expire 12 months from the date of issuance
and (iv) shall have such other terms and conditions as set forth in the Warrant
Agreement. The record date for determining the holders entitled to participate
in the Warrant Issuance (the "Warrant Issuance Record Date") shall be the close
of business on the date designated by SCG, which date shall be within the 28-day
period following the Rights Offering Closing Date and which date shall be
consistent with any restrictions in the ruling or opinion described in Section
7.1(d). SCG shall issue an aggregate number of SCG Warrants determined by
dividing $102,044,037 by the Current Market Price of an SCG Class B Common Share
on the Warrant Issuance Date. The number of SCG Warrants to be issued to each
such holder shall be determined by multiplying (a) the aggregate number of SCG
Warrants to be issued by (b) the number obtained by dividing (i) the aggregate
number of PTR Common Shares held of record by the holder and issuable upon
conversion of all PTR Series A Preferred Shares held of record by the holder, in
each case as of the close of business on the Warrant Issuance Record Date, by
(ii) the total number of PTR Common Shares outstanding (other than those owned
by SCG) and issuable upon conversion of all PTR Series A Preferred Shares
outstanding (other than those owned by SCG), in each case as of the close of
business on the Warrant Issuance Record Date. No certificates or scrip
representing fractional SCG Warrants shall be issued in connection with the
Warrant Issuance. The Warrant Issuance Agreement shall contain appropriate
provision to aggregate and sell all fractional SCG Warrants and remit the net
proceeds to the PTR shareholders who would otherwise be entitled to such
fractions. The Warrant Issuance shall be made pursuant to and in accordance with
the procedures set forth in the Warrant Issuance Agreement. The Warrant Issuance
shall not occur unless and until all of the conditions set forth in this
Agreement have been satisfied or waived and the mergers described in Section 2.1
have been consummated.

     SECTION 2.3 THE RIGHTS OFFERING. PTR shall distribute as a dividend to each
holder of record of PTR Common Shares, as of the close of business on the PTR
Shareholders' Approval Record Date, rights to purchase PTR Common Shares
entitling such holder to subscribe for and purchase PTR Common Shares during the
period commencing on the date the PTR Prospectus is mailed to such holders and
expiring on the close of business on the date of the Merger Closing (the "Rights
Offering Expiration Date"). The issuance of such rights and the issuance of PTR
Common Shares upon exercise of such rights shall be registered under the PTR
Registration Statement and PTR shall use its best efforts to cause the rights to
be tradeable on the Exchange on which the PTR Common Shares are listed. Each
holder of PTR Common Shares shall receive one (1) right for every one (1) PTR
Common Share held of record by such holder as of the PTR Shareholders' Approval
Record Date. The exercise price per PTR Common Share for such rights shall be
equal to the Fair Market Value of a PTR Common Share; provided, that in the
event that the Fair Market Value is more than $27.11475, then the exercise price
per PTR Common Share shall be $27.11475. PTR shall make available for

                                       7
<PAGE>
 
issuance in the rights offering, up to a maximum number of PTR Common Shares
equal to the difference between (X) the amount determined by dividing (A) the
number of PTR Common Shares issuable to SCG pursuant to Section 2.1 by (B) the
percentage of all outstanding PTR Common Shares owned by SCG on the PTR
Shareholders' Approval Record Date (the amount determined pursuant to this
clause (X) being the "Rights Offering Amount") and (Y) the number of PTR Common
Shares issuable to SCG pursuant to Section 2.1. Each holder shall be entitled to
acquire one (1) PTR Common Share by paying the Fair Market Value and
surrendering that number of rights (rounded down to the nearest one-one
hundredth (1/100th)) equal to the amount determined by dividing the aggregate
number of PTR Common Shares outstanding on the PTR Shareholders' Approval Record
Date by the Rights Offering Amount. SCG agrees that it shall not exercise or
sell or otherwise transfer any rights issued to it pursuant to this Section 2.3
and SCG shall not purchase or otherwise acquire any rights. PTR shall not accept
subscriptions pursuant to such rights unless and until all of the conditions set
forth in this Agreement have been satisfied or waived and the mergers described
in Section 2.1 have been consummated.

                                  ARTICLE III
                     REPRESENTATIONS AND WARRANTIES OF PTR

     PTR represents and warrants to SCG as follows:

     SECTION 3.1 ORGANIZATION AND QUALIFICATION. PTR is duly organized, validly
existing and in good standing under the laws of the State of Maryland and has
the requisite power, trust or otherwise, and authority to own, lease and operate
its assets and properties and to carry on its business as it is now being
conducted and as it is proposed by it to be conducted, including, without
limitation, the conduct of the businesses currently conducted by the SCG
Subsidiaries. PTR is qualified to do business and is in good standing in each
jurisdiction in which the properties owned, leased or operated by it or the
nature of the business conducted by it makes such qualification necessary,
except where the failure to be so qualified and in good standing would not
reasonably be expected to have a material adverse effect on the business,
operations, properties, assets, condition (financial or other), results of
operations or prospects of PTR. True, accurate and complete copies of each of
the declaration of trust and bylaws of PTR as in effect on the date hereof,
including all amendments thereto and proposed amendments thereof, have
heretofore been delivered to SCG.

     SECTION 3.2  CAPITALIZATION.

     (a) The authorized shares of PTR consists of 150,000,000 shares of
beneficial interest, of which 76,042,168 PTR Common Shares, 6,105,119 PTR Series
A Preferred Shares, and 4,200,000 PTR Series B Preferred Shares are issued and
outstanding as of the date hereof. All of the issued and outstanding PTR Common
Shares, PTR Series A Preferred Shares and PTR Series B Preferred Shares are
validly issued, fully paid and, except as set forth in Schedule 3.2(a),
nonassessable and free of preemptive rights.

                                       8
<PAGE>
 
     (b) Except as contemplated by this Agreement and the Related Agreements or
as set forth in Schedule 3.2(b), as of the date hereof, there are no outstanding
subscriptions, options, calls, contracts, commitments, understandings,
restrictions, arrangements, rights or warrants, including any right of
conversion or exchange under any outstanding security, instrument or other
agreement that are presently exercisable obligating PTR to issue, deliver or
sell, or cause to be issued, delivered or sold, additional PTR Common Shares or
obligating PTR to grant, extend or enter into any such agreement or commitment;
provided, however, that the foregoing shall not apply to the adoption by PTR of
any incentive plan providing for grants of options or restricted shares to
directors and employees nor to any grant of options or restricted shares
thereunder. There are no voting trusts, proxies or other agreements or
understandings to which PTR is a party or by which PTR is bound with respect to
the voting of any PTR Common Shares.

     SECTION 3.3 ISSUANCE OF SECURITIES. The PTR Common Shares issuable to SCG
hereunder, when issued in accordance with the provisions of this Agreement and
the Related Agreements, will be duly and validly authorized and issued and will
be fully paid and, except as set forth in Schedule 3.2(a), nonassessable. The
PTR Common Shares issuable upon exercise of rights issued pursuant to Section
2.3, when issued in accordance with the provisions of this Agreement and the
Related Agreements, will be duly and validly authorized and issued and will be
fully paid and, except as set forth in Schedule 3.2(a), nonassessable.

     SECTION 3.4  AUTHORITY; NON-CONTRAVENTION; APPROVALS.

     (a) PTR has full power, trust or otherwise, and authority to enter into
this Agreement and the Related Agreements to which it is a party and, subject to
PTR Shareholders' Approval and PTR Required Statutory Approvals, to consummate
the transactions contemplated hereby and thereby. The execution and delivery of
this Agreement and the Related Agreements to which it is a party, and the
consummation by PTR of the transactions contemplated hereby and thereby, have
been duly authorized by the PTR Board and no other proceedings on the part of
PTR are necessary to authorize the execution and delivery of this Agreement or
the Related Agreements and the consummation by PTR of the transactions
contemplated hereby and thereby, except for PTR Shareholders' Approval and the
obtaining of PTR Required Statutory Approvals. This Agreement has been duly and
validly executed and delivered by PTR, and, assuming the due authorization,
execution and delivery hereof by SCG, constitutes a valid and binding agreement
of PTR enforceable against PTR in accordance with its terms, except that such
enforcement may be subject to (i) bankruptcy, insolvency, reorganization,
moratorium or other similar laws affecting or relating to enforcement of
creditors' rights generally, (ii) general equitable principles and (iii) to the
extent this Agreement or any of the Related Agreements contains indemnification
provisions for violations of federal or state securities laws, as enforceability
of such provisions may be limited under federal and state securities laws.

     (b) The execution and delivery of this Agreement and the Related Agreements
by PTR, to the extent it is a party thereto, do not, and the consummation by PTR
of the

                                       9
<PAGE>
 
transactions contemplated hereby and thereby will not, violate, conflict with or
result in a breach of any provision of, or constitute a default (or an event
which, with notice or lapse of time or both, would constitute a default) under,
or result in the termination of, or accelerate the performance required by, or
result in a right of termination or acceleration under, or result in the
creation of any lien, security interest, charge or encumbrance upon any of the
assets of PTR under any of the terms, conditions or provisions of, (i) subject
to obtaining PTR Shareholders' Approval, PTR's declaration of trust or bylaws,
(ii) subject to obtaining PTR Required Statutory Approvals and PTR Shareholders'
Approval, any statute, law, ordinance, rule, regulation, judgment, decree,
order, injunction, writ, permit or license of any court or governmental
authority applicable to PTR or any of its properties or (iii) except as set
forth on Schedule 3.4(b) hereto, any note, bond, mortgage, indenture, deed of
trust, license, franchise, permit, concession, contract, lease or other
instrument, obligation or agreement of any kind to which PTR is now a party or
by which PTR or any of its properties may be bound, excluding from the foregoing
clauses (ii) and (iii) such violations, conflicts, breaches, defaults,
terminations, accelerations or creations of liens, security interests, charges
or encumbrances that would not, in the aggregate, be reasonably expected to have
a material adverse effect on the business, operations, properties, assets,
condition (financial or other), results of operations or prospects of PTR.

     (c) Except for (i) the filing of the PTR Registration Statement, the Proxy
Statement and the SCG Warrant Registration Statement with the Commission
pursuant to the Securities Act and the Exchange Act, and the declaration of the
effectiveness of the PTR Registration Statement and the SCG Warrant Registration
Statement by the Commission and filings with various state blue sky authorities,
(ii) any required filings by PTR pursuant to Section 2.1, (iii) any required
filings by PTR of amendments to its declaration of trust and (iv) any required
filings with or approvals from applicable federal or state housing authorities
(the filings and approvals referred to in clauses (i) through (iv) are
collectively referred to as the "PTR Required Statutory Approvals"), no
declaration, filing or registration with, or notice to, or authorization,
consent or approval of, any governmental or regulatory body or authority is
necessary for the execution and delivery of this Agreement and the Related
Agreements by PTR or the consummation by PTR of the transactions contemplated
hereby or thereby, other than such declarations, filings, registrations,
notices, authorizations, consents or approvals which, if not made or obtained,
as the case may be, would not, in the aggregate, be reasonably expected to have
a material adverse effect on the business, operations, properties, assets,
condition (financial or other), results of operations or prospects of PTR.

     SECTION 3.5 REGISTRATION STATEMENTS AND PROXY STATEMENT AND PROSPECTUSES.
None of the information to be supplied by PTR for inclusion or incorporation by
reference in the SCG Warrant Registration Statement will, at the time it becomes
effective, at the time of the mailing of the SCG Warrant Prospectus and the
Proxy Statement and any amendments thereof or supplements thereto, and at the
time of the meeting of shareholders of PTR to be held in connection with the
transactions contemplated by this Agreement, contain any untrue statement of a
material fact or omit to state any material fact

                                      10
<PAGE>
 
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they are made, not
misleading. The Proxy Statement will comply as to form in all material respects
with all applicable laws, including the provisions of the Securities Act and the
Exchange Act and the rules and regulations promulgated thereunder. No
representation is made by PTR with respect to information supplied by SCG, or
derived therefrom, for inclusion in the SCG Warrant Registration Statement.

     SECTION 3.6 DISCLOSURE, FINANCIAL STATEMENTS AND ABSENCE OF CERTAIN
CHANGES. PTR's Annual Report on Form 10-K for the year ended December 31, 1996
(the "PTR 10-K"), and each other report or document filed after December 31,
1996 by PTR with the Commission under the Exchange Act, taken together, do not
contain any untrue statement of a material fact or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading. PTR's audited consolidated financial statements contained in the PTR
10-K (the "PTR Financial Statements") have been prepared in accordance with
generally accepted accounting principles applied on a consistent basis and
fairly present the consolidated financial position of PTR and its subsidiaries
as of the dates set forth therein and the results of their operations and cash
flows for the periods set forth therein. Since December 31, 1996, there has not
been any material adverse change or any event (other than general economic or
market conditions) which would reasonably be expected to result in a material
adverse change, individually or in the aggregate, in the business, operations,
properties, assets, liabilities, condition (financial or other), results of
operations or prospects of PTR.

     SECTION 3.7 ABSENCE OF UNDISCLOSED LIABILITIES. PTR did not have, at
December 31, 1996, and has not incurred since that date, any liabilities or
obligations (whether absolute, accrued, contingent or otherwise) of any nature
(other than ordinary and recurring operating expenses), (a) except liabilities,
obligations or contingencies which are accrued or reserved against in the PTR
Financial Statements with respect to December 31, 1996 or reflected in the notes
thereto and (b) except for any liabilities, obligations or contingencies which
(i) would not, in the aggregate, be reasonably expected to have a material
adverse effect on the business, operations, properties, assets, condition
(financial or other), results of operations or prospects of PTR or (ii) have
been discharged or paid in full prior to the date hereof.

     SECTION 3.8 BROKERS AND FINDERS. PTR has not employed any broker, finder or
other intermediary in connection with the transactions contemplated by this
Agreement which would be entitled to any brokerage, finder's or similar fee or
commission in connection with this Agreement or the transactions contemplated
hereby.

                                      11
<PAGE>
 
                                 ARTICLE IV
                     REPRESENTATIONS AND WARRANTIES OF SCG

     SCG represents and warrants to PTR as follows:

     SECTION 4.1  ORGANIZATION AND QUALIFICATION.  SCG and each of the SCG
Subsidiaries is duly organized, validly existing and in good standing under the
laws of its jurisdiction of organization and each has the requisite power,
corporate or otherwise, and authority to own, lease and operate its assets and
properties and to carry on its business as it is now being conducted and as it
is proposed by it to be conducted.  Each SCG Subsidiary is qualified to do
business and is in good standing in each jurisdiction in which the properties
owned, leased or operated by it or the nature of the business conducted by it
makes such qualification necessary, except where the failure to be so qualified
and in good standing would not reasonably be expected to have a material adverse
effect on the business, operations, properties, assets, condition (financial or
other), results of operations or prospects of any such SCG Subsidiary.  True,
accurate and complete copies of each of the articles of incorporation and bylaws
of SCG and the certificate of incorporation and bylaws of each SCG Subsidiary as
in effect on the date hereof, including all amendments thereto and proposed
amendments and restatements thereof, have heretofore been delivered to PTR.

     SECTION 4.2  CAPITALIZATION.

     (a) The authorized stock of the REIT Manager consists of 1,000 shares
of common stock, of which 1,000 shares of common stock are issued and
outstanding.  The authorized stock of the Property Manager consists of 100,000
shares of common stock, of which 1,000 shares of common stock are issued and
outstanding.  All of the issued and outstanding shares of common stock of the
REIT Manager and the Property Manager are owned by SCG, or a wholly owned
subsidiary of SCG, and are validly issued, fully paid and nonassessable.  SCG,
or one of its wholly owned subsidiaries, owns good and marketable title to the
issued and outstanding shares of common stock of each of the SCG Subsidiaries,
in each case, free and clear of all liens, encumbrances, claims, security
interests and defects.

     (b) There are no outstanding subscriptions, options, calls, contracts,
commitments, understandings, restrictions, arrangements, rights or warrants,
including any right of conversion or exchange under any outstanding security,
instrument or other agreement obligating SCG or any subsidiary of SCG to issue,
deliver or sell, or cause to be issued, delivered or sold, additional shares of
either SCG Subsidiary or obligating SCG or any subsidiary of SCG to grant,
extend or enter into any agreement or commitment with respect to any of the
foregoing.  There are no voting trusts, proxies or other agreements or
understandings to which SCG or any subsidiary of SCG is a party or is bound with
respect to the voting of any shares of either SCG Subsidiary.

                                      12
<PAGE>
 
     SECTION 4.3  ISSUANCE OF SECURITIES.  Subject to receiving the SCG
Shareholders' Approval, the SCG Warrants when issued in accordance with the
provisions of this Agreement and the Related Agreements will constitute valid
and binding agreements of SCG enforceable against SCG in accordance with their
terms, except that such enforcement may be subject to (i) bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting or
relating to enforcement of creditors' rights generally and (ii) general
equitable principles.  Subject to receiving the SCG Shareholders' Approval, the
SCG Class B Common Shares issuable upon exercise of the SCG Warrants, when
issued upon exercise of SCG Warrants and in accordance with the Warrant
Agreement, will be duly and validly authorized and issued and will be fully paid
and nonassessable.

     SECTION 4.4  AUTHORITY; NON-CONTRAVENTION; APPROVALS.

     (a) SCG and each of the SCG Subsidiaries has full power, corporate or
otherwise, and authority to enter into this Agreement and the Related Agreements
to which it is a party and, subject to SCG Shareholders' Approval and SCG
Required Statutory Approvals, to consummate the transactions contemplated hereby
and thereby.  The execution and delivery of this Agreement and the Related
Agreements to which they are parties, and the consummation by SCG and the SCG
Subsidiaries of the transactions contemplated hereby and thereby, have been duly
authorized by the SCG Board and the board of the relevant SCG Subsidiary, and no
other corporate proceedings on the part of SCG or either SCG Subsidiary are
necessary to authorize the execution and delivery of this Agreement or the
Related Agreements and the consummation by SCG and the SCG Subsidiaries of the
transactions contemplated hereby and thereby, except for SCG Shareholders'
Approval and the obtaining of SCG Required Statutory Approvals.  This Agreement
has been duly and validly executed and delivered by SCG, and, assuming the due
authorization, execution and delivery hereof by PTR, constitutes a valid and
binding agreement of SCG enforceable against SCG in accordance with its terms,
except that such enforcement may be subject to (i) bankruptcy, insolvency,
reorganization, moratorium or other similar laws affecting or relating to
enforcement of creditors' rights generally, (ii) general equitable principles
and (iii) to the extent this Agreement or any of the Related Agreements contains
indemnification provisions for violations of federal or state securities laws,
as enforceability of such provisions may be limited under federal and state
securities laws.  As of the date of this Agreement, neither of the SCG
Subsidiaries is in violation of its charter, bylaws or other organizational
documents.

      (b) The execution and delivery of this Agreement and the Related
Agreements by SCG and each SCG Subsidiary, to the extent it is a party thereto,
do not, and the consummation by SCG and the SCG Subsidiaries of the transactions
contemplated hereby and thereby will not, violate, conflict with or result in a
breach of any provision of, or constitute a default (or an event which, with
notice or lapse of time or both, would constitute a default) under, or result in
the termination of, or accelerate the performance required by, or result in a
right of termination or acceleration under, or result in the creation of any
lien, security interest, charge or encumbrance upon any of the assets of either
of the SCG Subsidiaries under any of the terms, conditions or provisions of (i)
subject to obtaining SCG Shareholders' Approval, SCG's or such

                                      13
<PAGE>
 
SCG Subsidiary's articles of incorporation or bylaws, (ii) subject to obtaining
SCG Required Statutory Approvals and SCG Shareholders' Approval, any statute,
law, ordinance, rule, regulation, judgment, decree, order, injunction, writ,
permit or license of any court or governmental authority applicable to SCG or
either SCG Subsidiary or any of the assets of either of the SCG Subsidiaries,
(iii) the certificate of incorporation or bylaws of an SCG Subsidiary or (iv)
except as set forth on Schedule 4.4(b) hereto, any note, bond, mortgage,
indenture, deed of trust, license, franchise, permit, concession, contract,
lease or other instrument, obligation or agreement of any kind to which SCG or
either SCG Subsidiary is now a party or by which SCG or either SCG Subsidiary or
any of the assets of either of the SCG Subsidiaries may be bound, excluding from
the foregoing clauses (ii) and (iv) such violations, conflicts, breaches,
defaults, terminations, accelerations or creations of liens, security interests,
charges or encumbrances that would not, in the aggregate, be reasonably expected
to have a material adverse effect on the business, operations, properties,
assets, condition (financial or other), results of operations or prospects of
either of the SCG Subsidiaries.

     (c) Except for (i) the filing of the Proxy Statement and the SCG Warrant
Registration Statement with the Commission pursuant to the Securities Act and
the Exchange Act, and the declaration of the effectiveness of the SCG Warrant
Registration Statement by the Commission and filings with various state blue sky
authorities, (ii) any required filings by SCG or an SCG Subsidiary pursuant to
Section 2.1 and (iii) any required filings by SCG of amendments to its articles
of incorporation (the filings and approvals referred to in clauses (i) through
(iii) are collectively referred to as the "SCG Required Statutory Approvals"),
no declaration, filing or registration with, or notice to, or authorization,
consent or approval of, any governmental or regulatory body or authority is
necessary for the execution and delivery of this Agreement and the Related
Agreements by SCG or either SCG Subsidiary or the consummation by SCG or either
SCG Subsidiary of the transactions contemplated hereby or thereby, other than
such declarations, filings, registrations, notices, authorizations, consents or
approvals which, if not made or obtained, as the case may be, would not, in the
aggregate, be reasonably expected to have a material adverse effect on the
business, operations, properties, assets, condition (financial or other),
results of operations or prospects of either of the SCG Subsidiaries.

     SECTION 4.5  FINANCIAL STATEMENTS.  The audited financial statements of SCG
for the years ended December 31, 1994, 1995 and 1996 (the "SCG Financial
Statements" ) have been prepared in accordance with generally accepted
accounting principles applied on a consistent basis (except as otherwise set
forth in such financial statements) and fairly present the financial position of
SCG as of the dates presented and the results of its operations and cash flows
for the periods presented. The unaudited balance sheet of each SCG Subsidiary as
at February 28, 1997 and Statements of Funds From Operations for the years ended
December 31, 1995 and 1996 (the "Subsidiary Financial Statements") fairly
present the financial position of each SCG Subsidiary as of the dates presented
and the results of its operations for the periods presented.

                                      14
<PAGE>
 
     SECTION 4.6  ABSENCE OF CERTAIN CHANGES OR EVENTS. Since December 31, 1996,
there has not been any material adverse change or any event (other than general
economic or market conditions) which would reasonably be expected to result in a
material adverse change, individually or in the aggregate, in the business,
operations, properties, assets, liabilities, condition (financial or other),
results of operations or prospects of SCG or of either of the SCG Subsidiaries.
Each of the SCG Subsidiaries have conducted their respective businesses in the
ordinary course during the periods covered by the Subsidiary Financial
Statements.

     SECTION 4.7  REGISTRATION STATEMENTS AND PROXY STATEMENT AND PROSPECTUSES.
None of the information to be supplied by SCG for inclusion or incorporation by
reference in the SCG Warrant Registration Statement will, at the time it becomes
effective, at the time of the mailing of the SCG Warrant Prospectus and the
Proxy Statement and any amendments thereof or supplements thereto, and at the
time of the meeting of shareholders of PTR to be held in connection with the
transactions contemplated by this Agreement, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. The SCG Warrant
Registration Statement will comply as to form in all material respects with all
applicable laws, including the provisions of the Securities Act and the Exchange
Act and the rules and regulations promulgated thereunder. No representation is
made by SCG with respect to information supplied by PTR, or derived therefrom,
for inclusion in the SCG Warrant Registration Statement.

     SECTION 4.8  TAXES.

     (a) Each SCG Subsidiary has duly and timely filed with the appropriate
governmental authorities all Tax Returns required to be filed by it (either
separately or as a member of any affiliated group within the meaning of Section
1504 of the Code or any similar group defined under a similar provision of
state, local or foreign law (an "Affiliated Group")) for all periods ending on
or prior to the Merger Closing, except to the extent of any Tax Returns for
which an extension of time for filing has been properly filed. Each such return
and filing is true and correct in all respects. All Taxes owed by either SCG
Subsidiary have been paid (whether or not shown on a Tax Return). No material
issues have been raised in any examination by any taxing authority with respect
to the businesses and operations of SCG or either of the SCG Subsidiaries which
(i) reasonably could be expected to result in an adjustment to the liability for
Taxes for such period examined or (ii), by application of similar principles,
reasonably could be expected to result in an adjustment to the liability for
Taxes for any other period not so examined. All Taxes which each SCG Subsidiary
is required by law to withhold or collect, including without limitation Taxes
required to have been withheld in connection with amounts paid or owning to any
employee, independent contractor, creditor, stockholder, or other third party
and sales, gross receipts and use taxes, have been duly withheld or collected
and, to the extent required, have been paid over to the proper governmental
authorities or are held in

                                      15
<PAGE>
 
separate bank accounts for such purpose.  There are no liens for Taxes upon the
assets of SCG or either of the SCG Subsidiaries except for statutory liens for
Taxes not yet due.

     (b) None of SCG, the SCG Subsidiaries or the Affiliated Group has filed for
an extension of a statute of limitations with respect to any Tax and no
governmental authorities have requested an extension of the statute of
limitations with respect to any Tax. The Tax Returns of SCG, each SCG Subsidiary
and the Affiliated Group are not being and have not been examined by any taxing
authority for any past year or periods. None of SCG, the SCG Subsidiaries or the
Affiliated Group is a party to any pending action or any formal or informal
proceeding by any taxing authority for a deficiency, assessment or collection of
Taxes, and no claim for any deficiency, assessment or collection of Taxes has
been asserted, or, to the best knowledge of SCG, threatened against it,
including claims by any taxing authority in a jurisdiction where SCG and the SCG
Subsidiaries do not file tax returns that any of them is or may be subject to
taxation in that jurisdiction.

     (c) Each SCG Subsidiary has properly accrued on its respective Subsidiary
Financial Statements all Taxes due for which such SCG Subsidiary may be liable
in its own right (including, without limitation, by reason of being a member of
an Affiliated Group or as a transferee of the assets of, or successor to, any
corporation, person, association, partnership, joint venture or other entity.
Each SCG Subsidiary has established (and until the Closing shall continue to
establish and maintain) on its books and records reserves that are adequate for
the payment of all Taxes not yet due and payable.

     (d) Neither SCG Subsidiary (i) has filed a consent under Section
341(f) of the Code concerning collapsible corporations, (ii) is a party to any
Tax allocation or sharing agreement other than a tax sharing agreement between
an SCG Subsidiary and SCG, which such agreement will be terminated as of the
Closing Date, and (iii) has been a member of an Affiliated Group filing a
consolidated federal income Tax Return other than a group, the common parent of
which is SCG.

     (e) The Affiliated Group of which each SCG Subsidiary is a member has duly
and timely filed all Tax Returns that it was required to file for each taxable
period during which any SCG Subsidiary was a member of the group. All such Tax
Returns were true, complete and correct in all respects and all Taxes owed by
the Affiliated Group, whether or not shown on any Tax Return, have been paid for
each taxable period during which any SCG Subsidiary was a member of the group.

     (f) Neither SCG Subsidiary has any liability for the Taxes of any person
other than SCG or such SCG Subsidiary (A) under Treasury Regulation Section
1.1502-6 (or any similar provision of state, local or foreign law), (B) as a
transferee or successor, (C) by contract, or (D) otherwise.

     (g) Neither SCG Subsidiary has made any payments, is obligated to make any
payments, or is a party to an agreement that could obligate it to make any
payments that will not be deductible under Section 280G of the Code. Each SCG
Subsidiary has disclosed to the

                                      16
<PAGE>
 
IRS all positions taken on its federal income tax returns which could give rise
to a substantial understatement of tax under Section 6662 of the Code.

     SECTION 4.9  ABSENCE OF UNDISCLOSED LIABILITIES.  SCG did not have, at
December 31, 1996, and has not incurred since that date, any liabilities or
obligations (whether absolute, accrued, contingent or otherwise) of any nature
(other than ordinary and recurring operating expenses) with respect to any of
the assets of either of the SCG Subsidiaries, and neither SCG Subsidiary had, at
December 31, 1996, and none has incurred since that date, any liabilities or
obligations (whether absolute, accrued, contingent or otherwise) of any nature
(other than ordinary and recurring operating expenses) (a) except liabilities,
obligations or contingencies which are accrued or reserved against in the SCG
Financial Statements or the Subsidiary Financial Statements or reflected in the
notes thereto and (b) except for any liabilities, obligations or contingencies
which (i) would not, in the aggregate, be reasonably expected to have a material
adverse effect on the business, operations, properties, assets, condition
(financial or other), results of operations or prospects of SCG or either of the
SCG Subsidiaries or (ii) have been discharged or paid in full prior to the date
hereof.

     SECTION 4.10  LITIGATION.  Except as set forth on Schedule 4.10, there are
no claims, suits, actions or proceedings pending or, to the best of SCG's
knowledge, threatened, against, relating to or affecting either of the SCG
Subsidiaries or any of the assets of either of the SCG Subsidiaries before or by
any court, governmental department, commission, agency, instrumentality or
authority, or any arbitrator that could reasonably be expected, either alone or
in the aggregate with all such claims, actions or proceedings, to affect
materially and adversely the business, operations, properties, assets, condition
(financial or other), results of operations or prospects of either of the SCG
Subsidiaries. Neither SCG Subsidiary is subject to any judgment, decree,
injunction, rule or order of any court, governmental department, commission,
agency, instrumentality or authority, or any arbitrator which prohibits or
restricts the consummation of the transactions contemplated hereby or by any of
the Related Agreements or would have a material adverse effect on the business,
operations, properties, assets, condition (financial or other), results of
operations or prospects of either of the SCG Subsidiaries.

     SECTION 4.11  NO VIOLATION OF LAW.  Neither of the SCG Subsidiaries is in
violation of or has been given notice or been charged with any violation of any
law, statute, order, rule, regulation, ordinance or judgment (including, without
limitation, any applicable Environmental Laws) of any governmental or regulatory
body or authority, except for violations which, in the aggregate, would not
reasonably be expected to have a material adverse effect on the business,
operations, properties, assets, condition (financial or other), results of
operations or prospects of either of the SCG Subsidiaries. No investigation or
review of either of the SCG Subsidiaries by any governmental or regulatory body
or authority is pending or, to the best knowledge of SCG, threatened, nor has
any governmental or regulatory body or authority indicated to SCG or either SCG
Subsidiary an intention to conduct the same. Each of the SCG Subsidiaries and
each of its officers and employees has all permits, licenses, franchises,
variances, exemptions, orders and other governmental authorizations, consents
and approvals necessary to conduct its business as presently conducted and as
proposed by such SCG Subsidiary to be conducted, except for permits, licenses,
franchises, variances, exemptions,

                                      17
<PAGE>
 
orders, authorizations, consents and approvals the absence of which, alone or in
the aggregate, would not reasonably be expected to have a material adverse
effect on the business, operations, properties, assets, condition (financial or
other), results of operations or prospects of either of the SCG Subsidiaries.

     SECTION 4.12  INSURANCE.  SCG or the SCG Subsidiaries maintain insurance
coverage for each SCG Subsidiary and their respective assets of the types, and
in amounts, typical of similar companies engaged in the respective businesses in
which such SCG Subsidiary is engaged. All such insurance policies are in full
force and effect, and with respect to all policies, none of SCG nor either SCG
Subsidiary is delinquent in the payment of any premiums thereon, and no notice
of cancellation or termination has been received with respect to any such
policy. All such policies are sufficient for compliance with all requirements of
law and of all agreements to which either of the SCG Subsidiaries is a party or
otherwise bound and are valid, outstanding, collectable, and enforceable
policies and will remain in full force and effect through their respective
policy periods ending after the Merger Closing (assuming payment of any
applicable premiums arising after the Merger Closing). Neither SCG nor either
SCG Subsidiary has received written notice within the last 12 months from any
insurance company or board of fire underwriters of any conditions, defects or
inadequacies that would materially adversely affect the insurability of, or
cause any material increase in the premiums for insurance covering, either of
the SCG Subsidiaries or any of the assets of either of the SCG Subsidiaries that
have not been cured or repaired to the satisfaction of the party issuing the
notice.

     SECTION 4.13  EMPLOYEE BENEFIT PLANS.  SCG has previously provided or made
available to PTR a copy of each written employee benefit plan maintained by SCG
and/or its affiliates ("Employee Benefit Plans") that provides retirement,
pension, health care, long-term disability income, workers compensation, life
insurance and any other postretirement benefits that, as of the date hereof,
covers any employee of an SCG Subsidiary ("Employees") and a copy of each plan,
contract, or arrangement constituting an employment or severance agreement with
any director or Employee of an SCG Subsidiary. Each Employee Benefit Plan
complies and has been administered in form and in operation in all material
respects with all applicable requirements of law and no notice has been issued
by any governmental authority questioning or challenging such compliance.
Neither the execution or delivery of this Agreement or any of the Related
Agreements nor the consummation of the transactions contemplated hereby or
thereby constitutes or will constitute an event under any Employee Benefit Plan
or any such employment or severance agreement that may result in any payment by
PTR or any SCG Subsidiary, any restriction or limitation upon the assets of any
Employee Benefit Plan, any acceleration of payment or vesting, increase in
benefits or compensation, or forgiveness of any loan or other commitment to PTR
or an SCG Subsidiary.

     SECTION 4.14  INTELLECTUAL PROPERTY.  Schedule 4.14 is a true and complete
list of all of the Intellectual Property used in the conduct of the businesses
of the SCG Subsidiaries. All the Intellectual Property listed on Schedule 4.14
is either owned or being licensed by one of the SCG Subsidiaries. With respect
to the Intellectual Property indicated on Schedule 4.14 as being owned by one of
the SCG Subsidiaries, the respective SCG Subsidiary indicated as owning such
Intellectual Property owns all right, title and interest in such

                                      18
<PAGE>
 
Intellectual Property, free and clear of all liens, encumbrances, claims,
security interests and defects. With respect to the Intellectual Property
indicated on Schedule 4.14 as being licensed by one of the SCG Subsidiaries, the
respective SCG Subsidiary indicated as licensing such Intellectual Property (i)
has the right under the applicable license agreement to use the relevant
Intellectual Property in the manner in which it is being used in the conduct of
the business of the SCG Subsidiary and (ii) is in compliance with all terms and
conditions of each such license agreement except where such failure to be in
compliance could not reasonably be expected to have any material adverse effect
on the business, operations, properties, assets, condition (financial or other),
results of operations or prospects of either SCG Subsidiary. None of the
Intellectual Property has been or is the subject of any pending adverse claim,
or to the best knowledge of SCG, any threatened litigation or claim of
infringement based on the use thereof by either one of the SCG Subsidiaries or a
third party. Neither SCG nor either of the SCG Subsidiaries has received any
notice contesting SCG's or the SCG Subsidiaries' right to use any of the
Intellectual Property and, to the knowledge of SCG, neither of the SCG
Subsidiaries has infringed upon or misappropriated any intellectual property
rights of third parties.

     SECTION 4.15  LABOR.  None of SCG or any of the SCG Subsidiaries is a party
to, or bound by, a collective bargaining agreement, contract or other
understanding with a labor union or labor union organization. There is no unfair
labor practice or labor arbitration proceeding pending or, to the knowledge of
SCG, threatened against the SCG Subsidiaries. To the knowledge of SCG, there are
no organizational efforts with respect to the formation of a collective
bargaining unit presently being made or threatened involving employees of either
SCG Subsidiary.

     SECTION 4.16  BROKERS AND FINDERS.  SCG has not employed any broker, finder
or other intermediary in connection with the transactions contemplated by this
Agreement which would be entitled to any brokerage, finder's or similar fee or
commission in connection with this Agreement or the transactions contemplated
hereby.

     SECTION 4.17  INVESTMENT COMPANY ACT.  None of SCG and the SCG Subsidiaries
is, and as of the date of the Merger Closing they will not be, an "investment
company" within the meaning of the Investment Company Act of 1940, as amended,
nor an "investment adviser" within the meaning of the Investment Advisers Act of
1940, as amended.

     SECTION 4.18  ADEQUACY OF SCG CONSIDERATION.  Except for the Intellectual
Property described on Schedule 4.14, no part of the respective businesses
conducted by the SCG Subsidiaries is conducted through any entity other than the
respective SCG Subsidiary.

     SECTION 4.19  INVESTMENT IN SECURITIES.

     (a) SCG understands that (i) no Federal or state agency has passed upon the
PTR Common Shares to be issued in connection with the mergers described in
Section 2.1 or made any finding or determination as to the fairness of SCG's
investment therein or the terms of the offer and the sale thereof pursuant to
this Agreement and the Related Agreements and (ii) SCG must bear the economic
risk of its investment in the PTR Common Shares to be issued in

                                      19
<PAGE>
 
connection with the mergers described in Section 2.1 for an indefinite period of
time because such shares will not be registered under the Securities Act or any
state securities laws, and, therefore, cannot be sold or transferred unless
either they are subsequently registered under the Securities Act and applicable
state securities laws or an exemption from such registrations is available.

     (b) The PTR Common Shares to be issued in connection with the mergers
described in Section 2.1 are being acquired for SCG's own account and not with
any view toward the resale or distribution thereof, or with any present
intention of selling or distributing any such shares.

     (c) SCG has such knowledge and experience in financial and business matters
that it is capable of evaluating the merits and risks of an investment in the
PTR Common Shares to be issued in connection with the mergers described in
Section 2.1.

     (d) SCG has carefully reviewed all documents that it has requested copies
of, has been furnished with all other materials that it considers relevant to an
investment in the PTR Common Shares to be issued in connection with the mergers
described in Section 2.1 and has had a full opportunity to ask questions of and
receive answers from PTR or a person or persons acting on behalf of PTR
concerning the terms and conditions of an investment in the PTR Common Shares to
be issued in connection with the mergers described in Section 2.1.

     SECTION 4.20  TITLE TO ASSETS; NO REAL PROPERTY.  Set forth on Schedule
4.20 is a complete list of all of the assets currently owned by each SCG
Subsidiary which are materially important in the conduct of its business as it
is being currently conducted and a list of all officers and key employees of
each such SCG Subsidiary. The SCG Subsidiaries have good, valid and marketable
title to, or a leasehold interest in, (a) all of their material properties and
assets (tangible and intangible) reflected in the Subsidiary Financial
Statements, except as indicated in the notes thereto and except for properties
and assets disposed of in the ordinary course of business, and (b) all of the
material properties and assets purchased by an SCG Subsidiary since the date of
such financial statements, except for properties and assets disposed of in the
ordinary course of business, in each case subject to no lien, claim, or
encumbrance other than (i) liens reflected in such financial statements, (ii)
liens for current Taxes, assessments or governmental charges or levies not yet
due and delinquent, and (iii) liens that could not reasonably be expected to
have any material adverse effect on the business, operations, properties,
assets, condition (financial or other), results of operations or prospects of
either SCG Subsidiary. Neither SCG Subsidiary owns, in whole or in part, or
holds as record title holder, or is the holder of any mortgage or deed of trust
with respect to, any real property.

     SECTION 4.21  PROJECTIONS.  The projections prepared by SCG and furnished
to PTR have been prepared in good faith and with all available information
regarding the current operations of PTR and the SCG Subsidiaries and the
operations of PTR as proposed to be conducted and are based upon assumptions
which SCG believes to be reasonable. However, no representation or warranty is
made by SCG that the results set forth in such projections or the assumptions
underlying such projections will in fact be realized. SCG has previously caused


                                      20
<PAGE>
 
KPMG Peat Marwick LLP to deliver to PTR a report verifying the mathematical
accuracy of the methodology used by SCG in preparing the projections.  All of
the information supplied by SCG to KPMG Peat Marwick LLP for purposes of
preparing such report has been provided or made available to PTR or, if not so
provided or made available, is consistent with the information set forth in the
projections in all material respects.

                                   ARTICLE V
                CONDUCT OF BUSINESSES PENDING THE MERGER CLOSING

     SECTION 5.1  CONDUCT OF BUSINESSES OF SCG SUBSIDIARIES.  After the date
hereof and prior to the Merger Closing or earlier termination of this Agreement,
except as PTR shall otherwise agree in writing or as may be otherwise
specifically contemplated by this Agreement and the Related Agreements, SCG
shall cause each of the SCG Subsidiaries to:

     (a) conduct the businesses conducted by it in the ordinary and usual course
of business and consistent with past practice and, as to the REIT Manager, the
requirements of the Fifth Amended and Restated REIT Management Agreement dated
as of May 21, 1996, between PTR and it (the "REIT Management Agreement"), and as
to the Property Manager, the Management Agreement dated as of October 1, 1996
between PTR and it (the "Property Management Agreement");

     (b) not issue, sell, pledge or dispose of, or agree to issue, sell, pledge
or dispose of, any additional shares of, or any options, warrants or rights of
any kind to acquire any shares of, capital stock of an SCG Subsidiary of any
class or any debt or equity securities convertible into or exchangeable for such
stock or amend or modify the terms and conditions of any of the foregoing;

     (c) not (i) incur or become contingently liable with respect to any
additional indebtedness for borrowed money, (ii) take any action which would
jeopardize PTR's status as a real estate investment trust under the Code, (iii)
sell or otherwise dispose of any of its assets, (iv) prepay or cause to be
prepaid any principal amount outstanding with respect to indebtedness for
borrowed money or (vi) enter into any contract, agreement, commitment or
arrangement with respect to any of the foregoing;

     (d) use reasonable efforts to preserve intact its businesses, organization
and goodwill, keep available the services of its present officers and employees
and preserve the goodwill and business relationships with all lessees,
operators, suppliers, distributors, customers and others having business
relationships with it and PTR and not engage in any action, directly or
indirectly, with the intent to adversely impact the transactions contemplated by
this Agreement;

     (e) confer with one or more representatives of PTR when requested to report
on material operational matters and the general status of ongoing operations of
its respective businesses;


                                      21
<PAGE>
 
     (f) maintain, in full force and effect, with all premiums due thereon
paid, policies of insurance covering all of its respective insurable assets and
businesses in amounts and as to foreseeable risks usually insured against by
persons operating similar businesses under valid and enforceable policies of
insurance issued by nationally recognized insurers;

     (g) except as may be required to distribute earnings and profits, not
declare, set aside or pay any dividends on, or make any other distributions in
respect of, any of their capital stock, or purchase, redeem or otherwise acquire
any shares of their capital stock;

     (h) not acquire or agree to acquire by merging or consolidating with,
or by purchasing a substantial portion of the stock or assets of, or by any
other manner, any business or any corporation, partnership, joint venture,
association, or other business organization or division thereof;

     (i) not acquire or agree to acquire any assets that are material,
indivor in the aggregate, to either of the SCG Subsidiaries, or make or
agree to make any capital expenditures except in the ordinary course of business
consistent with past practice;

     (j) not adopt or amend in any material respect any bonus, profit
sharing, compensation, stock option, pension, retirement, deferred compensation,
employment or other employee benefit plan, agreement, trust, fund or other
arrangement for the benefit or welfare of any present or former director or
employee or, other than increases for individuals (other than officers and
directors) in the ordinary course of business consistent with past practice,
increase the compensation of fringe benefits of any present or former director
or employee; and not pay any benefit not required by an existing plan,
arrangement or agreement, or grant any new or modified severance or termination
arrangement or increase or accelerate any benefits payable under its severance
or termination pay policies;

     (k) not take any action that would, or is reasonably likely to, result
in any of its or PTR's representations and warranties in this Agreement becoming
untrue, or in any of the conditions to the Merger set forth in Article VII not
being satisfied;

     (l) not pay, discharge or satisfy any claims (including claims of
shareholders), liabilities or obligations (absolute, accrued, asserted or
unasserted, contingent or otherwise), except for the payment, discharge or
satisfaction, of (i) liabilities or obligations in the ordinary course of
business (including for Taxes) consistent with past practice or in accordance
with their terms as in effect on the date hereof, (ii) liabilities reflected or
reserved against in, or contemplated by, the Subsidiary Financial Statements, or
waive, release, grant, or transfer any rights of material value or modify or
change in any material respect any existing license, lease, contract or other
documents, other than as contemplated by this Agreement or in the ordinary
course of business consistent with past practice;

     (m) not (i) adopt a plan of complete or partial liquidation; (ii)
adopt any amendment to its charter or bylaws; (iii) enter into any contract,
agreement or arrangement involving more than $500,000 annually, except for
agreements entered into in the ordinary course of business

                                      22
<PAGE>
 
and with prior written consent; (iv) authorize or enter into any agreement
relating to property management services to be provided by it to a third party
property owners on other than customary terms; (v) modify or change in any
material respect any existing material agreements, except in the ordinary course
and consistent with past practice; (vi) engage in any conduct the nature of
which is materially different that the business in which it is currently
engaged; or (vi) enter into any agreement providing for acceleration of payment
or performance or other consequences as a result of a change of control of it;
and

    (n) not authorize any of, or commit or agree to take any of, the
foregoing actions set forth in subsections (b), (c), and (g) through (m).

     SECTION 5.2  CONDUCT OF BUSINESS OF PTR.  After the date hereof and
prior to the Merger Closing or earlier termination of this Agreement, except as
SCG shall otherwise agree in writing or as may be otherwise specifically
contemplated by this Agreement and the Related Agreements, PTR shall:

     (a) conduct the businesses conducted by it in the ordinary and usual
course of business and consistent with past practice;

     (b) not take any action which would jeopardize
its status as a real estate investment trust under the Code; and

     (c) operate in compliance with the terms and conditions of the Second
Amended and Restated Investor Agreement, dated November 18, 1993, between PTR
and SCG, as amended or supplemented.

                                   ARTICLE VI
                             ADDITIONAL AGREEMENTS

     SECTION 6.1  ACCESS TO INFORMATION.  Each of the parties shall afford
to the other party hereto and such other party's accountants, counsel, financial
advisors and other representatives full access, during normal business hours
throughout the period prior to the Merger Closing or earlier termination of this
Agreement, to all properties, books, contracts, commitments and records
(including, but not limited to, Tax Returns) of such party and, in the case of
SCG, of the SCG Subsidiaries, as appropriate, and, during such period, each
shall furnish promptly to the other (a) a copy of each report, schedule and
other document filed or received pursuant to the requirements of federal or
state securities laws or filed with the Commission in connection with the
transactions contemplated by this Agreement and (b) such other information
concerning their respective businesses, properties and personnel which are the
subject of this Agreement or the Related Agreements as shall be reasonably
requested; provided that no investigation pursuant to this Section 6.1 shall
affect any representation or warranty made herein or the conditions to the
obligations of the respective parties hereto to consummate the transactions
contemplated hereby or thereby.  Each party shall promptly advise each other
party in writing of any change or the occurrence of any event after the date of
this Agreement or the Related Agreements having, or which, insofar as can
reasonably be foreseen, in the future may


                                      23
<PAGE>
 
have, any material adverse effect on the business, operations, properties,
assets, condition (financial or other), results of operations or prospects of
such party or, in the case of SCG, either of the SCG Subsidiaries.

     SECTION 6.2 PROXY STATEMENT AND REGISTRATION STATEMENT. SCG shall file with
the Commission as soon as is reasonably practicable after the date hereof the
SCG Warrant Registration Statement. SCG shall also take any action required to
be taken under applicable state blue sky or securities laws in connection with
the issuance of securities pursuant to Sections 2.2. To the extent the PTR
Registration Statement shall not have been filed and/or declared effective prior
to the date of this Agreement, PTR shall (i) file as soon as is reasonably
practicable after the date hereof the PTR Registration Statement and use all
reasonable efforts to have the PTR Registration Statement declared effective by
the Commission as promptly as practicable, (ii) use all reasonable efforts to
continue the effectiveness of the PTR Registration Statement and (iii) keep
available for issuance under the PTR Registration Statement such number of
shares as would be required to satisfy rights issued pursuant to Section 2.3
assuming that each shareholder of PTR (other than SCG) elects to subscribe for
the maximum number of shares for which it is entitled to subscribe. To the
extent the PTR Registration Statement shall have been filed and declared
effective prior to the date of this Agreement, PTR shall use all reasonable
efforts to continue the effectiveness of the PTR Registration Statement and
shall keep available for issuance under the PTR Registration Statement such
number of shares as would be required to satisfy rights issued pursuant to
Section 2.3 assuming that each shareholder of PTR (other than SCG) elects to
subscribe for the maximum number of shares for which it is entitled to
subscribe. PTR shall also take any action required to be taken under applicable
state blue sky or securities laws in connection with the issuance of securities
pursuant to Sections 2.1 and 2.3. PTR and SCG shall promptly furnish to each
other all information, and take such other actions as may reasonably be
requested in connection with any action by any of them in connection with this
Section 6.2 and shall cooperate with one another and use their respective best
efforts to facilitate the expeditious consummation of the transactions
contemplated by this Agreement and the Related Agreements.

     SECTION 6.3 SHAREHOLDERS' APPROVAL. Each of PTR and SCG shall promptly take
such action as may be required by its declaration of trust or articles of
incorporation, as applicable, its bylaws and applicable law and promptly seek,
and use its best efforts to obtain, the requisite shareholder approval of this
Agreement and the transactions contemplated hereby, including amendments to
PTR's declaration of trust necessary to consummate the transactions contemplated
hereby and any amendments to SCG's articles of incorporation necessary to
consummate the transactions contemplated hereby (as appropriate, the "PTR
Shareholders' Approval" and "SCG Shareholders' Approval"). The PTR Board and SCG
Board shall recommend to their respective shareholders the approval of this
Agreement and of the transactions contemplated by this Agreement; provided,
however, that prior to the respective meetings of shareholders of PTR and SCG,
the PTR Board or SCG Board, as the case may be, may withdraw, modify or amend
such recommendation to the extent that the PTR Board or the PTR Special
Committee or the SCG Board, as the case may be, deems it necessary to do so in
the exercise of its fiduciary obligations to PTR or SCG, as the case may be,
after being so                  

                                      24
<PAGE>
 
advised by nationally recognized counsel not having an interest in the
transactions contemplated by this Agreement or the Related Agreements.

     SECTION 6.4 AFFILIATE AGREEMENTS. PTR shall use its best efforts to cause
each principal executive officer, trustee and each other person who is an
"affiliate," as that term is used in paragraphs (c) and (d) of Rule 145 under
the Securities Act, of PTR to execute and deliver to SCG on or prior to the
Warrant Issuance Date a written agreement (an "Affiliate Agreement") to the
effect that such person will not offer to sell, sell or otherwise dispose of any
SCG Warrants (or the SCG Class B Common Share issuable upon exercise thereof)
issued in the Warrant Issuance and received by such person, except, in each
case, pursuant to an effective registration statement or in compliance with Rule
145, as amended from time to time, or in a transaction which, in the opinion of
legal counsel satisfactory to SCG, is exempt from the registration requirements
of the Securities Act.

     SECTION 6.5 EXCHANGE. SCG shall use its best efforts to effect, at or
before the Warrant Issuance Date, authorization for listing or quotation of the
SCG Warrants on the New York Stock Exchange or another Exchange upon official
notice of issuance of the SCG Warrants pursuant to the Warrant Issuance.

     SECTION 6.6 EXPENSES. All costs and expenses incurred in connection with
this Agreement, the Related Agreements and the transactions contemplated hereby
and thereby shall be paid by the party incurring such expenses; provided,
however, that (i) all costs and expenses of the PTR Special Committee (including
fees and expenses of counsel and its financial advisors), and all fees and
expenses in connection with filing, printing and distributing the PTR
Registration Statement, the PTR Prospectus and the Proxy Statement shall be paid
by PTR and (ii) all costs and expenses in connection with filing, printing and
distributing the SCG Warrant Registration Statement and the SCG Warrant
Prospectus and all fees and expenses in connection with the listing of the SCG
Warrants (and the SCG Class B Common Shares issuable upon exercise thereof) on
any Exchange shall be paid by SCG.

     SECTION 6.7 AGREEMENT TO COOPERATE. Subject to the terms and conditions
herein provided, each of the parties hereto shall cooperate and use its
respective best efforts to take, or cause to be taken, all action and to do, or
cause to be done, all things necessary, proper or advisable under applicable
laws and regulations to consummate and make effective the transactions
contemplated by this Agreement and the Related Agreements, including using its
best efforts to identify and obtain all necessary or appropriate waivers,
consents and approvals to effect all necessary registrations, filings and
submissions (including, but not limited to, PTR Required Statutory Approvals,
SCG Required Statutory Approvals and any filings under federal and state
securities laws) and to lift any injunction or other legal bar to the
transactions contemplated hereby and thereby (and, in such case, to proceed with
such transactions as expeditiously as possible), subject, however, to obtaining
PTR Shareholders' Approval and SCG Shareholders' Approval.

     SECTION 6.8 PUBLIC STATEMENTS. The parties hereto shall consult with each
other prior to issuing any press release or any written public statement with
respect to this

                                      25
<PAGE>
 
Agreement and the Related Agreements or the transactions contemplated hereby and
thereby and shall not issue any such press release or written public statement
prior to review and approval by the other party, except that prior review and
approval shall not be required if, in the reasonable judgment of the party
seeking to issue such release or public statement, prior review and approval
would prevent the timely dissemination of such release or announcement in
violation of any applicable law, rule or regulation or rule or policy of the New
York Stock Exchange or another Exchange.

     SECTION 6.9  CORRECTIONS TO THE SCG WARRANT REGISTRATION STATEMENT AND
SCG WARRANT PROSPECTUS.  Prior to the date of PTR Shareholders' Approval, each
of PTR and SCG shall correct promptly any information provided by it to be used
specifically in the SCG Warrant Registration Statement or the PTR Registration
Statement, or incorporated by reference into either such document, that shall
have become false or misleading in any material respect and shall take all steps
necessary to file with the Commission and have declared effective or cleared by
the Commission any amendment or supplement to the SCG Warrant Registration
Statement or the PTR Registration Statement so as to correct the same and to
cause the SCG Warrant Registration Statement and the PTR Registration Statement
as so corrected to be disseminated to the shareholders of PTR, in each case to
the extent required by applicable law.

     SECTION 6.10 VOTING OF SHARES. SCG will vote all PTR Common Shares owned by
it in favor of the approval and adoption of this Agreement, the Related
Agreements and the transactions contemplated hereby and thereby (including such
amendments to PTR's Declaration of Trust as may be required to allow
consummation of such transactions); provided, however, that SCG shall not be
obligated to vote any PTR Common Shares in favor of such matters in the event
that the PTR Board, the PTR Special Committee or the SCG Board withdraws,
modifies or amends its recommendation pursuant to Section 6.3.

     SECTION 6.11  CONFIDENTIALITY

     (a) As used herein, "Confidential Material" means, with respect to either
party hereto (the "Providing Party"), all information, whether oral, written or
otherwise, furnished to the other party hereto (the "Receiving Party") or the
Receiving Party's directors, trustees, officers, partners, Affiliates (as
defined in Rule 12b-2 under the Exchange Act), employees, agents or
representatives (collectively, "Representatives"), by the Providing Party and
all reports, analyses, compilations, studies and other material prepared by the
Receiving Party or its Representatives (in whatever form maintained, whether
documentary, computer storage or otherwise) containing, reflecting or based
upon, in whole or in part, any such information. The term "Confidential
Material" does not include information which (i) is or becomes generally
available to the public other than as a result of a disclosure by the Receiving
Party, its Representatives or anyone to whom the Receiving Party or any of its
Representatives transmit any Confidential Material in violation of this
Agreement, (ii) is or becomes known or available to the Receiving Party on a
nonconfidential basis from a source (other than the Providing Party or one of
its Representatives) who is not, to the knowledge of the Receiving Party after
reasonable inquiry, prohibited from transmitting the information to the
Receiving Party or its

                                      26
<PAGE>
 
Representatives by a contractual, legal, fiduciary or other obligation or (iii)
is contained in the PTR Registration Statement, the PTR Prospectus, the Proxy
Statement, the SCG Warrant Registration Statement or the SCG Warrant Prospectus.

     (b) Subject to paragraph (c) below or except as required by applicable
laws, regulations or legal process, the Confidential Material will be kept
confidential and will not, without the prior written consent of the Providing
Party, be disclosed by the Receiving Party or its Representatives, in whole or
in part, and will not be used by the Receiving Party or its Representatives,
directly or indirectly, for any purpose other than in connection with this
Agreement, the Related Agreements and the transactions contemplated hereby or
thereby or evaluating, negotiating or advising with respect to such matters.
Moreover, the Receiving Party agrees to transmit Confidential Material to its
Representatives only if and to the extent that such Representatives need to know
the Confidential Material for purposes of such transactions and are informed by
the Receiving Party of the confidential nature of the Confidential Material and
of the terms of this Section 6.11. In any event, the Receiving Party will be
responsible for any actions by its Representatives which are not in accordance
with the provisions hereof. 

     (c) In the event that the Receiving Party, its Representatives or anyone to
whom the Receiving Party or its Representatives supply the Confidential Material
are requested (by oral questions, interrogatories, requests for information or
documents, subpoena, civil or criminal investigative demand, any informal or
formal investigation by any government or governmental agency or authority or
otherwise in connection with legal process) to disclose any Confidential
Material, the Receiving Party agrees (i) to immediately notify the Providing
Party of the existence, terms and circumstances surrounding such a request, (ii)
to consult with the Providing Party on the advisability of taking legal
available steps to resist or narrow such request and (iii) if disclosure of such
information is required, to furnish only that portion of the Confidential
Material which, in the opinion of the Receiving Party's counsel, the Receiving
Party is legally compelled to disclose and to cooperate with any action by the
Providing Party to obtain an appropriate protective order or other reliable
assurance that confidential treatment will be accorded the Confidential Material
(it being agreed that the Providing Party shall reimburse the Receiving Party
for all reasonable out-of-pocket expenses incurred by the Receiving Party in
connection with such cooperation).

     (d) In the event of the termination of this Agreement in accordance with
its terms, promptly upon request from the Providing Party, the Receiving Party
shall, except to the extent prohibited by applicable laws, regulations or legal
process, redeliver to the Providing Party or destroy all tangible Confidential
Material and will not retain any copies, extracts or other reproductions thereof
in whole or in part. Any such destruction shall be certified in writing to the
Providing Party by an authorized officer of the Receiving Party supervising the
same. Notwithstanding the foregoing, the Receiving Party and one Representative
designated by the Receiving Party shall be permitted to retain one permanent
file copy of each document constituting Confidential Material to be used only in
connection with litigation arising from the transactions contemplated by this
Agreement.

                                      27
<PAGE>
 
    SECTION 6.12  PERSONNEL.

     (a) SCG Liability for Employee Obligations. SCG shall indemnify and hold
harmless PTR for any and all obligations, debts or liabilities relating to or
arising from any Employee's employment with SCG or an SCG Subsidiary, which
obligation, debt or liability arises prior to the Merger Closing date. SCG shall
honor or cause its insurance carriers to honor all claims for benefits by the
Employees under each Employee Benefit Plan with respect to claims incurred by
the Employees or their covered dependents before the Merger Closing date.

     (b) Employee Benefit Plans. PTR shall establish or cause to be established
employee benefit plans for the respective Employees who become employees of PTR
or any subsidiary thereof after the Merger Closing that are substantially
similar to the Employee Benefit Plans, which plans shall recognize service of
the Employees with PTR and SCG and their affiliates to the same extent such
service has been recognized under the Employee Benefit Plans. The medical plans
established by PTR shall recognize any deductibles and copayments Employees have
made under the SCG medical plan in the current plan year.

     (c) Nonassumption of Employee Benefit Plan Liability. PTR shall not incur
any liability with respect to an Employee Benefit Plan.

     SECTION 6.13  PRORATIONS.  No later than ninety (90) days after the date of
the Merger Closing, SCG shall prepare and deliver a statement (a "Post-Closing
Accrual Statement") prorating all of the items listed in this Section 6.13
("Prorated Items") through the date of the Merger Closing. SCG shall be liable
for or entitled to the benefit of the Prorated Items to the extent the Prorated
Items relate to any time period up to the date of the Merger Closing, and PTR
shall be liable for or entitled to the benefit of the Prorated Items to the
extent Prorated Items relate to periods from and subsequent to the date of the
Merger Closing. Prorated Items shall be settled between SCG and PTR in cash. The
Prorated Items are as follows:

          (a) all Taxes relating to the businesses of the SCG Subsidiaries which
     shall have accrued and become payable prior to the date of the Merger
     Closing shall be paid by SCG. All Taxes which shall be (or should be)
     accrued but unpaid or which have been paid in advance shall be properly
     prorated as of the date of the Merger Closing between SCG and PTR. In
     connection with such proration of Taxes, in the event that actual tax
     figures are not available at the time of delivery of the Post-Closing
     Accrual Statement, the taxes to be prorated shall be based upon the actual
     taxes for the preceding year for which actual tax amounts are available and
     such taxes shall be reprorated upon request of either party made within
     sixty (60) days of the date that the actual amounts become available,
     provided that the actual amount is at least 5% more or 5% less than the
     amount on which the original proration was based, and appropriate payment
     shall be made within thirty (30) days after such reproration;

          (b) rents, taxes and other items payable by either of the SCG
     Subsidiaries under any agreement;

                                      28
<PAGE>
 
          (c) the amount of any license or registration fees with respect to any
     licenses or registrations of either of the SCG Subsidiaries;

          (d) the amount of charges for water, telephone, electricity and other
     utilities and fuel;

          (e) all accrued vacation, termination and severance pay and accrued
     sickness benefits for all Employees including related, social security
     taxes, unemployment compensation taxes, workers compensation taxes and
     premiums and other employment taxes relating to the same;

          (f) all other operating expenses, including without limitation
     insurance premiums and amounts payable to service providers, of the SCG
     Subsidiaries; and

          (g) all management fees, commissions and other fees and income of the
     SCG Subsidiaries;

          (h) all other items not specifically described in subsections (a)-(g)
     above which are normally prorated in connection with similar transactions.

In addition to the Prorated Items, the Post-Closing Accrual Statement shall also
reflect any payments made by SCG or either of the SCG Subsidiaries prior to
Merger Closing with respect to any Prorated Items. SCG agrees to furnish PTR
with such documents and other records as PTR reasonably requests in order to
confirm all adjustment and proration calculations reflected on the Post-Closing
Accrual Statement.

     SECTION 6.14   TAX MATTERS.

     (a) Tax Reporting.  The parties agree that they will report, and will cause
the SCG Subsidiaries and the surviving corporation in the mergers pursuant to
Section 2.1 to report, the Merger on all Tax Returns and other filings as tax-
free reorganizations under Section 368(a) of the Code.

     (b) Tax Sharing Agreements.  Any Tax sharing agreement between SCG and an
SCG Subsidiary will be terminated as of the Merger Closing and will have no
further effect for any taxable year.

     (c) Returns for Periods Through the Closing Date.  SCG will include the
income of each of the SCG Subsidiaries (including any deferred income triggered
into income by Section 1.1502-13 of the Treasury Regulations and any excess loss
accounts taken into income under Section 1.1502-19 of the Treasury Regulations)
on the SCG consolidated Tax Returns for all periods through the Merger Closing
and pay any Taxes attributable to such income. Each SCG Subsidiary will furnish
Tax information to SCG for inclusion in SCG's consolidated Tax Returns for the
period which includes the date of the Merger Closing in accordance with each SCG
Subsidiary's past custom and practice. SCG will allow PTR a reasonable
opportunity to review

                                      29
<PAGE>
 
and comment upon such Tax Returns (including any amended returns) prior to their
being filed to the extent that they relate to any SCG Subsidiary.  Without the
consent of PTR, SCG will take no position on such returns that relate to any SCG
Subsidiary that would be inconsistent with prior positions taken by SCG.  The
income of each SCG Subsidiary will be apportioned to the period up to and
including the Merger Closing date and the period after the Merger Closing date
by closing the books of each SCG Subsidiary as of the end of the Merger Closing
date.

     (d) Cooperation.  SCG and PTR will cooperate fully with each other in
connection with (i) the preparation and filing of any Federal, state or local
tax returns that include the business and operations of the SCG Subsidiaries for
any period prior to and including the date of the Merger Closing, and (ii) any
audit examination by any government taxing authority of the returns referred to
in clause (i).  Such cooperation shall include, without limitation, the
furnishing or making available of records, books of account or other materials
of the SCG Subsidiaries necessary or helpful for the defense against assertions
of any taxing authority as to any tax returns which include operations of the
SCG Subsidiaries for any period prior to and including the date of the Merger
Closing.

     (e) Claims.  In a case in which PTR or its subsidiaries receives any
inquiry, whether oral or written, from any taxing authority relating to any
matter which could result in the indemnification of PTR by SCG under Section
9.1, PTR will promptly give SCG written notice (the "Tax Inquiry Notice") of
such inquiry.  If such Tax Inquiry Notice is not given to SCG within 30 days
after the receipt by PTR or its subsidiaries of such an inquiry and PTR's
failure to give such Tax Inquiry Notice materially and substantially adversely
affects the ability of SCG to contest any claim made by such taxing authority,
SCG shall not be liable to PTR under Section 9.1 for such claim.

     (f) Settlement or Compromise.  PTR will not settle or otherwise compromise
any claim or issue subject to indemnification under Section 9.1 without SCG's
prior written consent, which SCG shall not unreasonably withhold. Nothing
contained herein shall require PTR to contest a claim if PTR shall waive the
payment by SCG of any amount that might otherwise be payable by SCG pursuant to
Section 9.1 hereof in respect of such claim.

     (g) Notice 88-19 Election.  PTR will make an election to be subject to
rules similar to the rules of Section 1374 of the Code in accordance with
Internal Revenue Service Notice 88-19, 1988-1 C.B. 486, or any future applicable
administrative rules or treasury regulations.

     SECTION 6.15  STANDSTILL.  SCG agrees that, during the period beginning on
the Closing Date and ending 180 days thereafter, it will not sell or cause to be
sold any PTR Common Shares beneficially owned by SCG.

                                      30
<PAGE>
 
                                  ARTICLE VII
                                  CONDITIONS

     SECTION 7.1  CONDITIONS TO EACH PARTY'S OBLIGATIONS.  The respective
obligation of each party to effect the transactions contemplated hereby and by
the Related Agreements shall be subject to the fulfillment at or prior to the
Merger Closing of the following conditions:

     (a) The other party shall have performed in all material respects its
agreements contained in this Agreement required to be performed on or prior to
the Merger Closing, and the representations and warranties of each such other
party shall be true and correct in all material respects on and as of (i) the
date made and (ii) the Merger Closing date with the same effect as if made on
that date; and each party shall have received a certificate of an executive
officer of each such party to that effect;

     (b) This Agreement, the Related Agreements and the transactions
contemplated hereby and thereby (including any amendments to PTR's Declaration
of Trust as may be required to allow consummation of such transactions) shall
have been approved by the affirmative vote of holders of two-thirds of the PTR
Common Shares and the SCG Required Shareholders' Approval shall have been
obtained;

     (c) The PTR Registration Statement and the SCG Warrant Registration
Statement shall each have become effective in accordance with the provisions of
the Securities Act, and no stop order suspending such effectiveness shall have
been issued and remain in effect and no proceeding for that purpose shall have
been initiated or threatened by the Commission;

     (d) PTR and SCG shall have received a study from Arthur Andersen LLP
or another nationally recognized independent certified public accounting firm
concluding that the accumulated earnings and profits for the SCG Subsidiaries as
of December 31, 1996 and the projected earnings and profits of the SCG
Subsidiaries for the period beginning January 1, 1997 and ending on the Merger
Closing date are in the aggregate less than $5,000,000;

     (e) Each of PTR and SCG shall have received a favorable opinion of
Mayer, Brown & Platt (substantially in the form set forth in Exhibit VIII) to
the effect that the mergers described in Section 2.1 each will qualify as a
reorganization within the meaning of Section 368 of the Code and that each of
PTR, the SCG Subsidiaries, and the subsidiary of PTR that shall be the surviving
corporation in such mergers will be a party to the reorganization within the
meaning of Section 368(b) of the Code;

    (f) PTR and SCG shall have received (i) an opinion from Mayer, Brown &
Platt (substantially in the form set forth in Exhibit VIII) that the performance
of this Agreement will not jeopardize the status of PTR as a "real estate
investment trust" under the Code or (ii) a favorable ruling from the Internal
Revenue Service to the effect that the Warrant Issuance will be respected for
federal income tax purposes as a direct issuance of the SCG Warrants by SCG to
the shareholders of PTR and an opinion from Mayer, Brown & Platt (substantially
in the form

                                      31
<PAGE>
 
set forth in Exhibit VIII hereto) that the performance of this Agreement will
not jeopardize the status of PTR as a "real estate investment trust" under the
Code;

     (g) No preliminary or permanent injunction or other order or decree by
any federal or state court which prevents the consummation of the transactions
contemplated by this Agreement and the Related Agreements shall have been issued
and remain in effect (each party agreeing to use its best efforts to have any
such injunction, order or decree lifted);

     (h) All governmental consents, orders and approvals legally required
for the consummation of the transactions contemplated by this Agreement and the
Related Agreements shall have been obtained and be in effect at the Merger
Closing (including PTR Required Statutory Approvals and SCG Required Statutory
Approvals), and all consents, orders and approvals legally required for the
consummation of the transactions contemplated by this Agreement and the Related
Agreements shall have been obtained;

     (i) Each of the parties shall have acquired all material consents
required from third parties necessary to consummate the transactions
contemplated by this Agreement;

     (j) All agreements set forth on Schedule 7.1 shall have been terminated
effective as of the Closing; and

     (k) SCG shall have forgiven all indebtedness owing to it from each SCG
Subsidiary.

     SECTION 7.2  CONDITIONS TO OBLIGATIONS OF PTR.  Unless waived by PTR,
the obligation of PTR to effect the transactions contemplated hereby and by the
Related Agreements shall be subject to the fulfillment at or prior to the Merger
Closing of the following additional conditions:

     (a) The Special Committee of the PTR Board (the "PTR Special Committee")
shall have received from Robertson, Stephens & Co., or another investment
banking firm satisfactory to the PTR Special Committee, a written opinion to the
effect that, as of the date of the Proxy Statement and the SCG Warrant
Prospectus, the consideration to be received in the transactions contemplated by
this Agreement and by the Related Agreements is fair, from a financial point of
view, to PTR and its shareholders (other than SCG), and such opinion shall not
have been withdrawn, revoked or modified;

     (b) SCG shall have executed and delivered to PTR an Amended and
Restated PTR Investor Agreement substantially in the form of Exhibit IV hereto;

     (c) SCG shall have executed and delivered to PTR an Administrative
Services Agreement substantially in the form of Exhibit V hereto;

     (d) SCG shall have executed and delivered to PTR a License Agreement
with respect to the name "Security Capital" substantially in the form of Exhibit
VI hereto;

                                      32
<PAGE>
 
     (e) SCG shall have executed and delivered to PTR a Protection of
Business Agreement substantially in the form of Exhibit VII hereto;

     (f) PTR shall have received a "comfort letter" from the independent
public accountants of SCG, dated as of the effective date of the SCG Warrant
Registration Statement, with respect to financial information of SCG included or
incorporated by reference in the Proxy Statement and the SCG Warrant
Registration Statement in form and substance reasonably satisfactory to PTR and
customary in scope and substance for "comfort letters" delivered by independent
public accountants in connection with registration statements and proxy
statements;

     (g) The SCG Warrants to be issued pursuant to the Warrant Issuance
shall have been authorized, upon official notice of issuance, for listing or
quotation on the Exchange, if any, on which the SCG Class B Common Shares are
authorized for listing or quotation; and

     (h) No governmental consent, order or approval legally required for
the consummation of the transactions contemplated by this Agreement and by the
Related Agreements shall have any terms which in the reasonable judgment of PTR,
when taken together with the terms of all such consents, orders or approvals,
would materially impair the value to PTR and the shareholders of PTR of the
transactions contemplated by this Agreement and the Related Agreements
(including, without limitation, the value of the SCG Warrants to be received by
the shareholders of PTR pursuant to Section 2.2), and no governmental authority
shall have promulgated any statute, rule or regulation which, when taken
together with all such promulgations, would materially impair the value to PTR
and the shareholders of PTR of the transactions contemplated by this Agreement
and the Related Agreements (including, without limitation, the value of the SCG
Warrants to be received by the shareholders of PTR pursuant to Section 2.2).
 
     SECTION 7.3  CONDITIONS TO OBLIGATIONS OF SCG.  Unless waived by SCG,
the obligation of SCG to effect the transactions contemplated hereby and by the
Related Agreements shall be subject to the fulfillment at or prior to the Merger
Closing of the additional following conditions:

     (a) The Affiliate Agreements required to be executed and delivered by
affiliates of PTR pursuant to Section 6.4 shall have been executed and delivered
as required by Section 6.4;

     (b) PTR shall have executed and delivered to SCG an Amended and
Restated PTR Investor Agreement substantially in the form of Exhibit IV hereto;

     (c) PTR shall have executed and delivered to SCG an Administrative
Services Agreement substantially in the form of Exhibit V hereto;

     (d) PTR shall have executed and delivered to SCG a License Agreement
with respect to the name "Security Capital" substantially in the form of Exhibit
VI hereto;

                                      33
<PAGE>
 
     (e) SCG shall have received a "comfort letter" from the independent public
accountants of PTR, dated as of the effective date of the SCG Warrant
Registration Statement, with respect to financial information of PTR included or
incorporated by reference in the Proxy Statement and the SCG Warrant
Registration Statement in form and substance reasonably satisfactory to SCG and
customary in scope and substance for "comfort letters" delivered by independent
public accountants in connection with registration statements and proxy
statements; and

     (f) No governmental consent, order or approval legally required for the
consummation of the transactions contemplated by this Agreement and by the
Related Agreements shall have any terms which in the reasonable judgment of SCG,
when taken together with the terms of all such consents, orders or approvals,
would materially impair the value to SCG of the transactions contemplated by
this Agreement and the Related Agreements (including, without limitation, the
value of the PTR Common Shares to be received by SCG pursuant to Section 2.1),
and no governmental authority shall have promulgated any statute, rule or
regulation which, when taken together with all such promulgations, would
materially impair the value to SCG and the shareholders of SCG of the
transactions contemplated by this Agreement and the Related Agreements
(including, without limitation, the value of the PTR Common Shares to be
received by SCG pursuant to Section 2.1).

                                 ARTICLE VIII
                       TERMINATION, AMENDMENT AND WAIVER

     SECTION 8.1 TERMINATION.  This Agreement may be terminated at any time
prior to the Merger Closing, whether before or after approval by the
shareholders of PTR and SCG:

     (a) by mutual consent of each of the parties hereto;

     (b) unilaterally by either of the parties hereto, so long as such party has
not breached any of its obligations hereunder (except for such breaches as are 
immaterial), if the transactions contemplated hereby shall not have been 
consummated on or before December 31, 1997 (the "Termination Date");

     (c) unilaterally by either of the parties hereto (i) if the other party (A)
fails to perform any covenant or agreement in this Agreement in any material
respect, and does not cure the failure, in all material respects within 15
business days after the terminating party delivers written notice of the alleged
failure or (B) fails to fulfill or complete a condition to the obligations of
the terminating party (which condition is not waived) by reason of a breach by
the non-terminating party of its obligations hereunder or (ii) if any condition
to the obligations of the terminating party is not satisfied (other than by
reason of a breach by that party of its obligations hereunder), and it
reasonably appears that the condition cannot be satisfied prior to the
Termination Date;

                                      34
<PAGE>
 
     (d) unilaterally by SCG if PTR, through the PTR Board or PTR Special
Committee, either fails to recommend to PTR's shareholders the approval of this
Agreement and the transactions contemplated hereby or withdraws, modifies or
amends such recommendation; and

     (e) unilaterally by PTR if SCG, through the SCG Board, either fails to
recommend to SCG's shareholders the approval of this Agreement and the
transactions contemplated hereby or withdraws, modifies or amends such
recommendation.

     SECTION 8.2 EFFECT OF TERMINATION.  In the event of termination of this
Agreement, as provided in Section 8.1, this Agreement shall forthwith become
void, and there shall be no further obligation on the part of any party hereto
or their respective officers or directors or trustees (except as set forth in
this Section 8.2 and in Sections 6.6 and 6.11 and Article IX, which shall
survive such termination). Nothing in this Section 8.2 shall relieve any party
from liability for any breach of this Agreement. Upon any termination pursuant
to Section 8.1(d), PTR shall pay to SCG all of the documented, out-of-pocket
expenses incurred by SCG after the date hereof in connection with the
transactions contemplated by this Agreement. Upon any termination pursuant to
Section 8.1(e), SCG shall pay to PTR all of the documented, out-of-pocket
expenses incurred by PTR after the date hereof in connection with the
transactions contemplated by this Agreement.

     SECTION 8.3 AMENDMENT.  This Agreement may not be amended except by an
instrument in writing signed on behalf of each of the parties hereto and in
compliance with applicable law; provided, however, this Agreement may not be
amended in any material respect following the PTR Shareholders' Approval or SCG
Shareholders' Approval.

     SECTION 8.4 WAIVER.  At any time prior to the Merger Closing, each party
hereto may (a) extend the time for the performance of any of the obligations or
other acts of the other party hereto, (b) waive any inaccuracies in the
representations and warranties contained herein or in any document delivered
pursuant hereto and (c) waive compliance with any of the agreements or
conditions contained herein except PTR Shareholders' Approval or the SCG
Shareholders' Approval. Any agreement on the part of a party hereto to any such
extension or waiver shall be valid if set forth in an instrument in writing
signed on behalf of such party.

                                  ARTICLE IX
                     SURVIVAL AND REMEDY; INDEMNIFICATION

     SECTION 9.1 INDEMNIFICATION.  Each party hereto agrees to indemnify (each
an "Indemnifying Party") the other party hereto and each of such other party's
affiliates (each an "Indemnified Party" and collectively, the "Indemnified
Parties") against, and agrees to hold it and them harmless from, any and all
liabilities, losses, costs, damages, penalties or expenses (including, without
limitation, reasonable attorneys' fees and expenses and costs of investigation
and litigation) (collectively, "Losses") incurred or suffered by an Indemnified
Party arising out of or in connection with any breach of, or inaccuracy in, (i)
to the extent SCG is the Indemnifying Party, any of the representations and
warranties or agreements of SCG under this Agreement and (ii) to the extent PTR
is the Indemnifying Party, the representations and

                                      35
<PAGE>
 
warranties of the PTR set forth in Section 3.3 and Section 3.4(a) of this
Agreement.  In addition, SCG agrees to indemnify PTR and each of PTR's
affiliates (other than SCG, but including, after the Merger Closing, the
surviving corporation in the merger pursuant to  Section 2.1) (PTR and such
included affiliates being included within the terms "Indemnified Party" and
"Indemnified Parties" as used in the other sections of this Article IX) against,
and agrees to hold it and them harmless from, any and all Losses incurred or
suffered by it or them arising out of or in connection with (X) any breach of,
or inaccuracy in, any of the representations and warranties of PTR set forth in
this Agreement other than those set forth in Section 3.3 or Section 3.4(a), (Y)
any acts or omissions of either of the SCG Subsidiaries in their respective
capacities as REIT Manager and Property Manager prior to the Merger Closing, but
only to the extent that such breach, inaccuracy, act, or omission arises out of
or results from the gross negligence, bad faith, or willful misconduct of either
SCG Subsidiary or (Z) any income tax liabilities arising pursuant to Treasury
Regulations section 1.1502-6 or any analogous state or local provision.

     SECTION 9.2 LIMITATION OF INDEMNIFICATION.  An Indemnified Party shall not
be entitled to indemnification under this Article IX until the aggregate of all
Losses with respect to which such Indemnified Party would otherwise be entitled
to indemnification under this Article IX exceeds $250,000, in which event the
Indemnified Party shall be entitled to all such Losses including such $250,000;
provided, however, that none of the indemnification obligations hereunder (other
than for Losses arising in connection with a breach of the representations and
warranties set forth in Section 4.8 or under clause (Z) of Section 9.1) shall
exceed the Fair Market Value of the PTR Common Shares received by SCG pursuant
to Section 2.1.

     SECTION 9.3 NOTICE OF CLAIMS; ASSUMPTION OF DEFENSE. The Indemnified Party
shall give prompt notice to the Indemnifying Party, in accordance with the terms
of Section 10.1 and in the case of a tax inquiry in compliance with the terms of
Section 6.14(e), of the assertion of any claim, or the commencement of any suit,
action or proceeding by any party in respect of which indemnity may be sought
hereunder, specifying with reasonable particularity the basis therefor and
giving the Indemnifying Party such information with respect thereto as the
Indemnifying Party may reasonably request. The Indemnifying Party may, at its
own expense, (a) participate in and (b) upon notice to the Indemnified Party and
upon the Indemnifying Party's written agreement that the Indemnified Party is
entitled to indemnification pursuant to Section 9.1 for Losses arising out of
such claim, suit, action or proceeding, at any time during the course of any
such claim, suit, action or proceeding, assume the defense thereof; provided
that (x) the Indemnifying Party's counsel is reasonably satisfactory to the
Indemnified Party and (y) the Indemnifying Party shall thereafter consult with
the Indemnified Party upon its reasonable request from time to time with respect
to such claim, suit, action or proceeding; provided, however, that the
Indemnified Party shall have the right to retain its own counsel, with the
reasonable fees and expenses to be paid by the Indemnifying Party, if the
Indemnified Party reasonably believes that representation of it by the counsel
retained by the Indemnifying Party would be inappropriate due to actual or
potential differing interest between the Indemnified Party and any other party
represented by such counsel in such proceeding. If the Indemnifying Party
assumes such defense, the Indemnified Party shall have the right (but not the
duty) to participate in the defense thereof and to employ counsel, at its own
expense, separate from the counsel

                                      36
<PAGE>
 
employed by the Indemnifying Party.  Whether or not the Indemnifying Party
chooses to defend or prosecute any such claim, suit, action or proceeding, all
of the parties hereto shall cooperate in the defense or prosecution thereof.

     SECTION 9.4 SETTLEMENT OR COMPROMISE. Any settlement or compromise made or
caused to be made by the Indemnified Party or the Indemnifying Party, as the
case may be, of any claim, suit, action or proceeding of the kind referred to in
Section 9.3 shall also be binding upon the Indemnifying Party or the Indemnified
Party, as the case may be, in the same manner as if a final judgment or decree
had been entered by a court of competent jurisdiction in the amount of such
settlement or compromise. No party shall settle or compromise any such claim,
suit, action or proceeding without the prior written consent of the other party,
which shall not be unreasonably withheld.

     SECTION 9.5 FAILURE OF INDEMNIFYING PARTY TO ACT. In the event that the
Indemnifying Party does not elect to assume the defense of any claim, suit,
action or proceeding within a reasonable time of being notified by the
Indemnified Party, then any failure of the Indemnified Party to defend or to
participate in the defense of any such claim, suit, action or proceeding or to
cause the same to be done, shall not relieve the Indemnifying Party of its
obligations hereunder.

     SECTION 9.6 SURVIVAL. The indemnification provided by this Article IX shall
be a continuing right to indemnification and shall survive the closing of the
transactions contemplated hereby and the expiration or termination of this
Agreement (i) for a period of two years following the Merger Closing with
respect to any indemnification not in connection with a breach of the
representations and warranties set forth in Section 4.8 and (ii) until the
expiration of the statute of limitations (as it may be extended) with respect to
each tax year or period pertinent to the representations and warranties set
forth in Section 4.8 with respect to any indemnification in connection with a
breach thereof; and the Indemnified Party shall be entitled to bring an action
thereon only if the Indemnified Party has given the Indemnifying Party written
notice within such two-year period or statute-of-limitations period, as the case
may be.

     SECTION 9.7 WAIVER OF COUNTERCLAIMS FOR INDEMNIFICATION. If and to the
extent that SCG, by virtue of being an Indemnifying Party hereunder, would have
a claim against any Indemnified Party for indemnification against Losses under
the REIT Management Agreement or Property Management Agreement, SCG hereby
waives and forever releases the Indemnified Parties from any such claim.


                                   ARTICLE X
                              GENERAL PROVISIONS

     SECTION 10.1 NOTICES.  All notices and other communications hereunder shall
be in writing and shall be deemed given if delivered personally, sent via a
recognized overnight courier with delivery confirmed in writing or sent via
facsimile to the parties at the following addresses (or at such other address
for a party as shall be specified by like notice):

                                      37
<PAGE>
 
     (a)  If to PTR, to:

          Security Capital Pacific Trust
          125 Lincoln Avenue
          Santa Fe, New Mexico  87501
          Attention:  R. Scot Sellers
          Fax:  (505) 989-8533
          
          with copies to:
          
          Mayer, Brown & Platt
          190 South LaSalle Street
          Chicago, Illinois 60603
          Attention:  Edward J. Schneidman
          Fax:  (312) 701-7711
          
          Munger Tolles & Olson LLP
          355 South Grand Avenue, 35th Floor
          Los Angeles, California  90071
          Attention:  R. Gregory Morgan
          Fax:  (213) 687-3702

     (b)  If to SCG, to:
     
          Security Capital Group Incorporated
          125 Lincoln Avenue, Suite 300
          Santa Fe, New Mexico  87501
          Attention:  Jeffrey A. Klopf
          Fax:  (505) 988-8920
     
          with a copy to:
     
          Mayer, Brown & Platt
          190 South LaSalle Street
          Chicago, Illinois 60603
          Attention:  Edward J. Schneidman
          Fax:  (312) 701-7711

     SECTION 10.2  INTERPRETATION.  The headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

     SECTION 10.3  MISCELLANEOUS.  This Agreement (including the documents and
instruments referred to herein) (a) constitutes the entire agreement and
supersedes all other prior agreements and understandings, both written and oral,
among the parties, or any of them, with

                                      38
<PAGE>
 
respect to the subject matter hereof and thereof; (b) shall not be assigned by
operation of law or otherwise; and (c) shall be governed in all respects,
including validity, interpretation and effect, by the laws of the State of
Maryland (without giving effect to the provisions thereof relating to conflicts
of law).

     SECTION 10.4  COUNTERPARTS.  This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
shall constitute one and the same agreement.

     SECTION 10.5  PARTIES IN INTEREST.  This Agreement shall be binding upon
and inure solely to the benefit of the parties hereto, and nothing in this
Agreement, express or implied, is intended to confer upon any other person any
rights or remedies of any nature whatsoever under or by reason of this
Agreement.

     SECTION 10.6  LIMITATION OF LIABILITY.  Any obligation or liability
whatsoever of PTR which may arise at any time under this Agreement or any
obligation or liability which may be incurred by it pursuant to any other
instrument, transaction or undertaking contemplated hereby shall be satisfied,
if at all, out of PTR's assets only.  No such obligation or liability shall be
personally binding upon, nor shall resort for the enforcement thereof be had to,
the property of any of its shareholders, trustees, officers, employees or
agents, regardless of whether such obligation or liability is in the nature of
contract, tort or otherwise.

     SECTION 10.7  NO PRESUMPTION AGAINST DRAFTER.  Each of the parties hereto
has jointly participated in the negotiation and drafting of this Agreement.  In
the event of an ambiguity or a question of intent or interpretation arises, this
Agreement shall be construed as if drafted jointly by each of the parties hereto
and no presumptions or burdens of proof shall arise favoring any party by virtue
of the authorship of any of the provisions of this Agreement.


                                       *     *     *     *     *

                                      39
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
signed by their respective officers thereunto duly authorized as of the date
first written above.


                         SECURITY CAPITAL PACIFIC TRUST

 
                         By: 
                             /s/ R. Scot Sellers
                             ------------------------------- 
                             R. Scot Sellers
                             Managing Director



                         SECURITY CAPITAL GROUP INCORPORATED
 

                         By: /s/ Jeffrey A. Klopf
                             -------------------------------
                             Jeffrey A. Klopf
                             Senior Vice President


                                      40

<PAGE>

                                                                    EXHIBIT 10.1
 
                 THIRD AMENDED AND RESTATED INVESTOR AGREEMENT


     THIS THIRD AMENDED AND RESTATED INVESTOR AGREEMENT (this "Agreement"),
dated as of __________, 1997, is by and between Security Capital Pacific Trust,
a Maryland real estate investment trust (the "Company"), and Security Capital
Group Incorporated, a Maryland corporation ("SCG").

                              W I T N E S S E T H
                              - - - - - - - - - -

     WHEREAS, the Company and SCG have entered into that certain Merger and
Issuance Agreement, dated as of March 24, 1997, (the "Merger Agreement"),
pursuant to which, among other things, SCG will cause certain of its
subsidiaries to be merged into a subsidiary of the Company in exchange for the
Company's common shares of beneficial interest, $0.01 par value per share (the
"Common Shares");

     WHEREAS, the Company and SCG are parties to that certain Investor
Agreement, dated and amended and restated as of February 23, 1990, which was
further amended by that certain Amended and Restated Investor Agreement dated as
of May 14, 1991, by that certain Supplemental Agreement dated as of May 14,
1991, and by that certain Second Amended and Restated Investor Agreement dated
as of July 11, 1994 (as so amended and restated and further amended, the
"Original Agreement");

     WHEREAS, the Company and SCG have also entered into that certain
Supplemental Investment Agreement, dated as of October 1, 1991, that certain
Second Supplemental Investment Agreement dated as of December 7, 1993, and that
certain Third Supplemental Investment Agreement dated as of December 6, 1994
(collectively the "Investment Agreements");

     WHEREAS, the Company and SCG desire to amend and restate the Original
Agreement to clarify certain ambiguities and update the Original Agreement, to
consolidate the provisions of the Investment Agreements with the provisions of
the Original Agreement and thereby terminate the Investment Agreements, and to
reflect the continuing relationship between the Company and SCG after
consummation of the transactions contemplated by the Merger Agreement (the
"Transaction"); and

     WHEREAS, the execution and delivery of this Agreement is a condition to the
consummation of the Transaction.

     NOW, THEREFORE, in consideration of the premises, the mutual covenants
herein contained and other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, the parties hereto agree as
follows:

     1. Definitions. In addition to the terms defined elsewhere herein, the
following terms shall have the following meanings:
<PAGE>
 
     "Affiliate" shall have the meaning ascribed thereto in Rule 12b-2 under the
Exchange Act as in effect on the date hereof; provided, that neither party
hereto shall be deemed to be an Affiliate of the other party hereto for purposes
of this Agreement unless otherwise stated herein.

     "Approval Rights" shall have the meaning set forth in Section 5(d) of this
Agreement.

     "Beneficial Owner" shall mean any Person deemed to be a "Beneficial Owner"
of or to "Beneficially Own" any Common Shares in accordance with the term
"beneficial ownership" as defined in Rule 13d-3 under the Exchange Act.

     "Board" shall mean the Board of Trustees of the Company.

     "Bylaws" shall mean the Company's Amended and Restated Bylaws, as now in
effect or as amended from time to time.

     "Capital Expenditures" shall mean, on an annual basis, an amount equal to
the product of (a) the sum of the total square footage with respect to all
completed properties of the Company and its consolidated subsidiaries as of the
last day of each of the immediately preceding five calendar quarters, divided by
five, and (b) $0.15.

     "Commission" shall mean the Securities and Exchange Commission or any
successor agency or entity thereto.

     "Common Shares" shall have the meaning set forth in the preamble of this
Agreement.

     "Company" shall have the meaning set forth in the first paragraph of this
Agreement.

     "Declaration of Trust" shall mean the Company's Restated Declaration of
Trust, as amended and supplemented, as now in effect or as amended from time to
time.

     "Disqualified Shares" shall mean any of the Company's shares of beneficial
interest which by its terms (or by the terms of any security into which it is
convertible or for which it is exchangeable or exercisable) (a) matures or is
subject to mandatory redemption, pursuant to a sinking fund obligation or
otherwise, (b) is convertible into or exchangeable or exercisable for a
Liability or Disqualified Shares during the term of this Agreement, (c) is
redeemable during the term of this Agreement at the option of the holder of such
security or (d) otherwise requires any payments by the Company during the term
of this Agreement.

     "Distribution" shall mean, with respect to any shares of beneficial
interest or other equity security of the Company, (a) the retirement,
redemption, purchase or other acquisition for value of those securities by the
Company, (b) the declaration or payment of any dividend on or with respect to
those securities by the Company, (c) any loan or advance by the Company to, or
other investment by the Company in, the holder of any of those securities and
(d) any other payment by the Company with respect to those securities.

                                      -2-
<PAGE>
 
     "Fixed Charge Coverage Ratio" shall mean, as of any date, the ratio of
(a)(i) Funds from Operations, plus (ii) Interest Expense, minus (iii) Capital
Expenditures, to (b) the sum of (i) Interest Expense, plus (ii) Distributions of
any kind or character or other proceeds paid or payable with respect to
Disqualified Shares, plus (iii) any regularly scheduled principal payments on
Total Indebtedness (excluding (1) any regularly scheduled principal payments on
Company's revolving line of credit with Texas Commerce Bank National Association
and Wells Fargo Realty Advisors Funding, Incorporated, or any renewals,
extensions or replacements thereof, and (2) any regularly scheduled principal
payments on any Total Indebtedness which pays such Total Indebtedness in full,
but only to the extent that the amount of such final payment is greater than the
scheduled principal payment immediately preceding such final payment), in each
case for the four fiscal quarters ending on the date of determination.

     "Funds from Operations" shall mean for the Company and its consolidated
subsidiaries, net income plus depreciation and amortization (exclusive of
amortization of financing costs), all as determined in accordance with generally
accepted accounting principles; provided, that there shall not be included in
such calculation (a) any proceeds of any insurance policy other than rental or
business interruption insurance received by the Company, (b) any gain or loss
which is classified as "extraordinary" in accordance with generally accepted
accounting principles or (c) capital gains and taxes on capital gains (in each
case exclusive of such amounts that are attributable to PTR Development Services
Incorporated). Funds from Operations shall be calculated as if all minority
interests in the Company's consolidated subsidiaries have been converted into
capital securities of the Company. Funds from Operations shall not be increased
or decreased by gains or losses from sales of properties (in each case exclusive
of amounts that are attributable to PTR Development Services Incorporated).

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

     "Group" shall have the meaning assigned thereto in Section 13(d)(3) of the
Exchange Act.

     "Interest Expense" shall mean all of the Company's paid, accrued or
capitalized interest expense on it Total Indebtedness (whether direct, indirect,
or contingent, and including interest on all convertible liabilities), but
excluding Interest Expense that is not paid or payable in cash and excluding
Interest Expense for the construction of Company projects which is capitalized
in accordance with generally accepted accounting principles.

     "Interest Expense Coverage Ratio" shall mean, as of any date, the ratio of
(a) the sum of (i) the Company's Funds from Operations and (ii) the Company's
Interest Expense to (b) the sum of (i) Interest Expense and (ii) Distributions
of any kind or character or other proceeds paid or payable with respect to
Disqualified Shares, of the Company and is consolidated subsidiaries for the
four fiscal quarters ending on the date of determination.

     "Liabilities" shall mean, without duplication, (a) any obligations required
by generally accepted accounting principles to be classified upon the Company's
balance sheet as liabilities, (b) any liabilities secured (or for which the
holder of the Liability has an existing right, remedy, power or privilege,
contingent or otherwise, to be so secured) by any Lien existing on property

                                      -3-
<PAGE>
 
owned or acquired by the Company, (c) any obligations that have been (or under
generally accepted accounting principles should be) capitalized for financial
reporting purposes and (d) any guaranties, endorsements and other contingent
obligations with respect to Liabilities or obligations of others.

     "Lien" shall mean any lien, mortgage, security interest, pledge,
assignment, charge, title retention, agreement or encumbrance of any kind and
any other substantially similar arrangement for a creditor's claim to be
satisfied from assets or proceeds prior to the claims of other creditors or the
owners.

     "Lender" shall have the meaning set forth in Section 7(i) of this
Agreement.

     "Member" shall have the meaning set forth in Section 4 of this Agreement.

     "Nominee" shall have the meaning set forth in Section 5(a) of this
Agreement.

     "Person" shall mean any individual, corporation, partnership, limited
liability company, joint venture, association, joint stock company, trust,
unincorporated organization, or other entity.

     "Registrable Securities" shall have the meaning set forth in Section 7(h)
of this Agreement.

     "SCG" shall have the meaning set forth in the first paragraph of this
Agreement.

     "SCG Group" shall have the meaning set forth in Section 4 of this
Agreement.

     "Securities Act" shall mean the Securities Act of 1933, as amended.

     "Senior Officer" shall mean any Senior Vice President, Managing Director,
President, Chairman or Co-Chairman of the Company.

     "Total Indebtedness" shall mean all Liabilities of the Company that are (a)
a Liability for borrowed money, (b) evidenced by bonds, debentures, notes or
similar instruments, (c) an obligation to pay the deferred purchase price of
property or services, except trade payables arising in the ordinary course of
business, (d) secured by a Lien existing on any property or any interest
therein, whether or not such Liability shall have been assumed by the Company,
(e) any capital lease or sublease that has been (or under generally accepted
accounting principles should be) capitalized on a balance sheet, (f) a guaranty,
endorsement or other contingent obligation (other than endorsements in the
ordinary course of business of negotiable or documents for deposit or
collection) and (g) accounts payable, dividends of any kind or character or
other proceeds payable with respect to any shares, accrued expenses and other
liabilities which in the aggregate are in excess of 5% of the amount of the
Company's total assets (determined in accordance with generally accepted
accounting principles) plus the amount of any accumulated depreciation with
respect to such assets, as of the date of determination.

                                      -4-
<PAGE>
 
     "Transaction" shall have the meaning set forth in the preamble of this
Agreement.

     "Value" shall mean the reported last sale price of a unit of security
regular way on a given day or, in case no such sale takes place on such day, the
average of the reported closing bid and asked prices regular way, in each case
on the New York Stock Exchange Composite Tape, or, if such securities are not
listed or admitted to trading on such exchange, on the principal national
securities exchange on which such securities are listed or admitted to trading;
or, if such securities are not listed or admitted to trading on any national
securities exchange, the closing sales price, or, if there is no closing sales
price, the average of the closing bid and asked prices, in the over-the-counter
market as reported by the National Association of Securities Dealers Automated
Quotation System, or, if not so reported, as reported by the National Quotation
Bureau, Incorporated, or any successor thereof; or, if not so reported, the
average of the closing bid and asked prices as furnished by any member of the
National Association of Securities Dealers, Inc. selected from time to time by
the Company for that purpose; or, if no such prices are furnished, the fair
market value of such security as estimated by a nationally recognized investment
banking firm selected by SCG (subject to the Company's approval, which will not
be unreasonably withheld), which estimate shall be prepared at the expense of
the Company; provided, however, that any determination of the "Value" of a
security hereunder shall be based on the assumption that such security is freely
transferable without registration under the Securities Act.

     "Violation" shall have the meaning set forth in Section 7(f)(i) of this
Agreement.

     2. Representations and Warranties of the Company. The Company hereby
represents and warrants to SCG as follows:

          (a) Organization and Standing. The Company has been duly organized and
     is validly existing as a real estate investment trust in good standing
     under the laws of the State of Maryland, with full power and authority to
     own its properties and conduct its business as now conducted and as
     proposed by it to be conducted.

          (b) No Defaults. The performance of this Agreement and the
     consummation of the transactions herein contemplated will not conflict with
     the Declaration of Trust, Bylaws or other governing documents of the
     Company.

          (c) Authority. The Company has full right, power and authority to
     enter into this Agreement and to carry out its obligations hereunder.  This
     Agreement has been duly authorized, executed and delivered by the Company
     and constitutes a valid and binding agreement of the Company enforceable
     against it in accordance with its terms, except to the extent that its
     enforceability may be limited by applicable bankruptcy, insolvency,
     reorganization or other laws affecting the enforcement of creditors' rights
     generally and judicial limitations on the right of specific performance or
     by general equitable principles, and except as enforceability of
     indemnification provisions hereof may be limited by federal securities
     laws.

                                      -5-
<PAGE>
 
          (d) Investment Company Act. The Company is not required to be
     registered under the Investment Company Act of 1940, as amended.

     3. Representations and Warranties of SCG. SCG hereby represents and
warrants to the Company as follows:

          (a) Organization and Standing. SCG has been duly organized and is
     validly existing as a corporation in good standing under the laws of the
     State of Maryland, with corporate power and authority to own its properties
     and conduct its business as now conducted.

          (b) Authorization. SCG has full right, power and authority to enter
     into this Agreement and to carry out its obligations hereunder. This
     Agreement has been duly authorized, executed and delivered by SCG and
     constitutes a valid and binding agreement of SCG enforceable against it in
     accordance with its terms, except to the extent that its enforceability may
     be limited by applicable bankruptcy, insolvency, reorganization or other
     laws affecting the enforcement of creditors' rights generally and judicial
     limitations on the right of specific performance or by general equitable
     principles. The performance by SCG of all of its obligations under this
     Agreement and the consummation of the transactions herein contemplated will
     not conflict with or result in a breach of any of the terms or provisions
     of, or constitute a default under, any indenture, mortgage, deed of trust,
     loan agreement or other material agreement or instrument to which SCG is a
     party or by which SCG is bound or to which any of the property or assets of
     SCG is subject, nor will any such action result in any violation of the
     provisions of the Articles of Incorporation or the By-Laws of SCG or any
     applicable law or statute or any order, rule or regulation of any court or
     governmental agency or body having jurisdiction over SCG or any of its
     properties.

          (c) Investment Company Act. SCG is not required to be registered under
     the Investment Company Act of 1940, as amended.

     4. Corporate Configuration. SCG and its affiliates, including the Company
(collectively, the "SCG Group and each, a "Member"), constitute a group of
businesses engaged in real estate research, investment and management. Since
inception, the SCG Group has compiled an excellent record of growth in its
business. The parties recognize that the SCG Group has a distinct character that
is reflected in its objectives, principles, operating policies and management
style and that the SCG Group's overall objective is to create the maximum value
for Members and the shareholders thereof. The parties further recognize that an
important element of the SCG Group's success has been its ability to attract,
motivate, develop and retain talented individuals. Historically, this has been
accomplished by combining the operational aspects of a Member with the
organizational, management, technical and financial strengths of SCG. Following
the consummation of the Transaction, the parties desire that the distinctive
character of the SCG Group continue as between the Company, SCG and the other
Members and, accordingly, agree to the following provisions of this Section 4.

                                      -6-
<PAGE>
 
          (a) Statement of Purpose and Objectives.  The parties believe that the
     creation of value for the shareholders of the Company and the other Members
     is dependent in large part on the ability of the Members to attract,
     motivate, develop and retain talented individuals.  The parties further
     recognize that each Member enjoys the benefits and support derived from its
     affiliates within the SCG Group and that these benefits and support are
     important for the continued success of each of the Members.  In that
     regard, the Company and SCG agree that the provisions of this Section 4 are
     necessary to continue the development of a corporate structure and depth of
     management capable of sustaining a high rate of value-creation over a long
     period of time.  Further, the Company and SCG agree that it is critical to
     the accomplishment of its goals to (i) recognize the intrinsic value of
     each employee as an individual, (ii) treat each employee and applicant for
     employment without discrimination as to race, creed, color, sex, age,
     orientation or national origin, (iii) maintain an atmosphere that combines
     professional achievement with personal enjoyment, (iv) provide training
     opportunities that permit employees to perform their jobs in a better and
     more meaningful manner, (v) provide each employee with opportunity for
     career growth and advancement within the SCG Group based upon individual
     ability and performance, (v) recognize the value and potential of self-
     motivation of people who thoroughly understand their jobs so that
     individual initiative and thought will be encouraged in the accomplishment
     of all tasks, (vi) compensate employees fairly and competitively and (vii)
     maintain and enhance the strengths of each Member.

          (b) Transferability of Employees.  To accomplish the foregoing
     objectives, each of the parties hereto agrees that SCG may notify the
     Company's officers and employees of employment opportunities with other
     Members of the SCG Group (including SCG) and may make such opportunities
     available to such officers and employees; provided, that prior to making
     any such opportunity available to any Senior Officer, SCG shall first give
     the Board written notice of its intention to make any such opportunity
     available to a Senior Officer at least 14 days prior to any discussions
     with a Senior Officer regarding such opportunity.  No Member (or any
     director, trustee, officer, employee or shareholder of such Member) shall
     have any liability to any other Member (or any director, trustee, officer,
     employee or shareholder of such Member) as a result of the compliance by
     such Member with the provisions of this Section 4. In the event that any
     claims are made by any Person as a result of the compliance by a Member
     with the provisions of this Section 4, each Member shall be responsible for
     its own costs of defending against such claim.

          (c) Termination.  The provisions of this Section 4 shall continue and
     remain in full force and effect until such time as the Company shall cease
     to be a Member.

     5.  Covenants of the Company.  The Company covenants and agrees with SCG
as follows:

          (a) Board Representation.  From and after the date hereof and for so
     long thereafter as SCG Beneficially Owns 10% or more of the outstanding
     Common Shares,

                                      -7-
<PAGE>
 
     the Company shall not increase the number of members of its Board to more
     than eight (8), and SCG shall be entitled to designate one or more Persons
     for nomination to the Board (such Person, a "Nominee") as follows and the
     Company will use its best efforts to cause the election of such Nominee or
     Nominees:

               (i) So long as SCG Beneficially Owns at least 10% but less than
          25% of the outstanding Common Shares, one (1) Nominee;

               (ii) So long as SCG Beneficially Owns 25% or more of the
          outstanding Common Shares, that number of Nominees as shall bear
          approximately the same ratio (rounded down to the nearest whole
          number) to the total number of members of the Board as the number of
          Common Shares Beneficially Owned by SCG bears to the total number of
          outstanding Common Shares, provided, that (A) SCG shall be entitled to
          designate not more than three (3) Nominees so long as the Board
          consists of not more than eight (8) members; and (B) any Person who is
          employed by SCG or who is an employee or a director of any corporation
          of which SCG is a 25% shareholder (except for the Company) shall be
          deemed to be a designee of SCG.

          (b) File Reports.  For as long as SCG shall continue to Beneficially
     Own any Common Shares, the Company shall file on a timely basis all annual,
     quarterly and other reports required to be filed by it under Sections 13
     and 15(d) of the Exchange Act, and the Rules and Regulations of the
     Commission thereunder, as amended from time to time.

          (c) Advice of Actions.  Without first having consulted with the
     Nominee or Nominees of SCG designated by SCG in writing, the Company will
     not seek approval by the Board of any proposal relating to:

               (i) Budget.  The Company's annual budget.

               (ii) Expenses.  Incurring expenses in any year exceeding (A) any
          line item in the annual budget by the greater of $500,000 or 20% or
          and (B) the total expenses set forth in the annual budget by 15%.

               (iii)  Assets.  The acquisition or sale of any assets in any
          single transaction or any series of related transactions in the
          ordinary course of the Company's business where the aggregate purchase
          price paid or received by the Company exceeds $25,000,000.

               (iv) Contracts.  Entering into any new contract with a service
          provider (A) for investment management, property management, or
          leasing services or (B) that reasonably contemplates annual contract
          payments by the Company in excess of $1,000,000.


                                      -8-
<PAGE>
 
     Notwithstanding the foregoing, the Company shall have no obligation to
     accept or comply with any advice offered by SCG or its designated Nominees
     in any consultation pursuant to this Section 5(c).

          (d) Approval Rights.  So long as SCG Beneficially Owns 25% or more of
     the Common Shares outstanding, SCG shall have the right (each, an "Approval
     Right") to approve the following matters as proposed by the Company:

               (i) Equity Securities.  The (A) issuance or sale of any Common
          Shares, (B) grant of any rights, options or warrants to subscribe for
          or purchase Common Shares or any security convertible into or
          exchangeable for Common Shares or (C) the issuance or sale of any
          security convertible into or exchangeable for Common Shares, in any
          such case, at a price per share less than the Value of a Common Share
          on the date of such issuance, sale or grant.  For purposes of the
          preceding sentence Common Shares shall be deemed to be issued at less
          than Value if the price per share for which Common Shares issuable
          upon exercise of rights, options or warrants or upon conversion or
          exchange of convertible or exchangeable securities is less than the
          Value on the date of issuance.  The provisions of this Section 5(d)(i)
          shall not apply to (A) the sale or grant of any options to purchase
          shares of beneficial interest of the Company pursuant to the
          provisions of any benefit plan approved by the shareholders of the
          Company, (B) the issuance or sale of shares of beneficial interest
          upon the exercise of any rights, options or warrants granted, or upon
          the conversion or exchange of any convertible or exchangeable security
          issued or sold, prior to the date of this Agreement or in accordance
          with the provisions of this Section 5, (C) the issuance and sale of
          any shares of beneficial interest of the Company pursuant to any
          dividend reinvestment and share purchase plan approved by the Board or
          (D) the issuance, grant of distribution of rights, options or warrants
          to all holders of Common Shares entitling them to subscribe for or
          purchase shares of beneficial interest of the Company or securities
          convertible into or exercisable for shares of beneficial interest.

               (ii) Fixed Charges.  The issuance and sale of any Disqualified
          Shares if, as a result thereof, the Company's Fixed Charge Coverage
          Ratio would be less than 1.4 to 1.0.

               (iii)  Benefit Plans and Compensation.  The adoption of any
          employee benefit plan pursuant to which shares of beneficial interest
          of the Company or any securities convertible into shares of beneficial
          interest of the Company may be issued and any action with respect to
          the compensation of the Senior Officers (including the granting or
          award of any bonuses or share-based incentive awards); provided,
          however, that SCG will not have an Approval Right as to any action
          with respect to the compensation of a Senior Officer as to whom SCG
          has delivered a notice under Section 4, for so long as the employment
          opportunity that is the subject of such notice is available to such
          Senior Officer.

                                      -9-
<PAGE>
 
               (iv) Indebtedness.  The incurrence of any additional indebtedness
          (including guarantees and including renegotiations and restructurings
          of existing indebtedness) if, as a result thereof, the Company's
          Interest Expense Coverage Ratio would be less than 2.0 to 1.0.

Notwithstanding anything to the contrary contained herein, the Approval Rights
of SCG shall terminate and be of no further force or effect at such time as SCG
Beneficially Owns less than 25% of the Common Shares outstanding.

          (e) Approval Right Procedures.  The Company shall submit any proposed
     action with respect to any Approval Right for consideration by SCG,
     together with information which sets forth in reasonable detail the
     background and reasons for such action, reasonably in advance of the date
     any action would be required to be taken by or on behalf of the Company to
     permit SCG to review the information and make an informed decision.  The
     approval of SCG pursuant to Section 5(d), other than where written approval
     is expressly required, shall be deemed to have been received if SCG does
     not communicate otherwise to the Company by the fifteenth day after SCG
     shall have received a written request for such approval.

          (f) Company Support.  If there is a final judicial determination
     before any court of competent jurisdiction that any or all of the Approval
     Rights are not enforceable or exercisable in any manner by SCG, whether by
     reason of Maryland statutory or common law or otherwise, the Company agrees
     to defer any action proposed by the Company which is the subject of any of
     the Approval Right which was so determined not to be enforceable or
     exercisable and SCG shall have the right to cause the Company to call a
     special meeting of shareholders at which meeting SCG may present an
     alternative slate of trustees for election (which slate may include some of
     the same nominees as the then current Board).  The Company and SCG agree
     that they will each use their best efforts to prepare and file with the
     Commission definitive proxy material, to have such material cleared by the
     Commission and to mail such material to the Company's shareholders, as soon
     as practicable.  The Company shall in any event provide SCG with a list of
     the shareholders of record for such meeting and a complete list of non-
     objecting beneficial holders and deposits in securities positions listings
     as of such date.  The Company and SCG shall not, and their respective
     directors, trustees, officers, employees and agents shall not, take any
     action that would have the effect of delaying, preventing or impeding the
     special meeting of shareholders or the mailing of proxy materials in
     respect of such meeting, including the commencement of any action, suit or
     proceeding at law or in equity seeking to enjoin, delay or impede the
     special meeting or the mailing of proxy materials in respect of such
     meeting.  The parties shall each bear their own costs in connection with
     any special meeting of shareholders pursuant to this Section 5(f);
     provided, that the Company shall bear all costs typically borne by
     companies in connection with annual meetings of shareholders.

          (g) Non-interference.  The Company shall not provide any Person with
     rights which are similar or more extensive than the Approval Rights
     provided to SCG hereunder


                                     -10-
<PAGE>
 
     and shall not grant to any Person or Group the right to nominate a greater
     number of members to the Company's Board than the number SCG is entitled to
     designate pursuant to Section 5(a), in each case, without the prior
     approval of SCG, which may be withheld in SCG's sole and absolute
     discretion; the Company shall not enter into any agreement or arrangement
     with any Person which shall impede or impair the Approval Rights in any
     manner.

          (h) Inspection.  At any time during regular business hours and as
     often as reasonably requested of the Company's officers, the Company will
     permit SCG or any authorized employee, agent or representative of SCG to
     examine and make copies and abstracts from the records and books of account
     of, and to visit the properties of, the Company and to discuss the affairs,
     finances, and accounts of the Company with any of its officers or
     directors; provided, that all costs and expenses of such inspection shall
     be borne by SCG.

          (i) Continuing Exemption.  The Company hereby covenants and agrees
     that (i) the Board resolution exempting SCG from the application of the
     provisions of Article 2, Section 7(c) of the Declaration of Trust to the
     extent that SCG acquires or shall have acquired securities of the Company
     giving it Beneficial Ownership of an aggregate of not more than 49% of the
     outstanding Common Shares, (ii) the Board resolution irrevocably exempting
     SCG from the application of Title 3, Subtitle 6 of the Corporations and
     Associations Article of the Annotated Code of Maryland entitled "Special
     Voting Requirements" (Section 3-601 through and including Section 3-604) so
     long as SCG Beneficially Owns 49% or less of the outstanding Common Shares,
     and (iii) the Bylaw amendment exempting SCG from the application of the
     provisions of Title 3, Subtitle 7 of the Corporations and Associations
     Article of the Annotated Code of Maryland entitled "Voting Rights of
     Certain Control Shares" (Section 3-701 through and including Section 3-709)
     with respect to any Common Shares acquired in connection with the Original
     Agreement, will not be rendered ineffective, and will continue to exempt
     the transactions contemplated hereby from the application of the provisions
     of Article 2, Section 7(c) of the Declaration of Trust, and Title 3,
     Subtitles 6 and 7 of the Corporations and Associations Article of the
     Annotated Code of Maryland, notwithstanding the Beneficial Ownership of SCG
     of more than 49% of the outstanding Common Shares, when such ownership
     results solely from (i) a reduction in the number of outstanding Common
     Shares as a result of acquisitions of Common Shares by the Company, or (ii)
     any other action taken solely by the Company or any Person other than SCG
     or its Affiliates.

     6.  Covenants of SCG.

          (a) During the term of this Agreement, neither (x) SCG nor (y) any
     person acting in concert with SCG pursuant to a written or oral agreement
     to acquire Beneficial Ownership of more than 49% of the outstanding Common
     Shares, will, directly or indirectly (including through the acquisition of
     ownership of more than 25% of the interest in a Person owning Common Shares
     or securities convertible or exchangeable into or exercisable for Common
     Shares) (it being understood that SCG shall not structure


                                     -11-
<PAGE>
 
     its shareholder interests or its ownership interests in other entities so
     as to intentionally circumvent the provisions of this Section 6(a)),
     acquire any Common Shares or securities convertible or exchangeable into or
     exercisable for Common Shares if the effect of such acquisition would be to
     increase the Beneficial Ownership of all Common Shares then owned by the
     Persons included within clauses (x) and (y) of this Section 6(a) to greater
     than 49% of the outstanding Common Shares; provided that, such Persons or
     SCG may acquire Common Shares or securities convertible or exchangeable
     into or exercisable for Common Shares without regard to the foregoing
     limitation pursuant to a tender offer for Company securities that meets the
     following conditions:

               (i) the tender offer is made for all Company securities not held
          by SCG;

               (ii) the consideration offered is all cash and is offered equally
          to all holders; and

               (iii)  the tender offer is held open for at least 90 days.

          (b) The Board shall have no restrictions on its ability to oppose any
     such tender offer, including the activation of its shareholder defenses and
     attempting to find better offers.

          (c) Notwithstanding anything in this Agreement to the contrary, SCG
     may make a tender offer for Common Shares at any time and having whatever
     terms that SCG deems appropriate (including terms inconsistent with (i) -
     (iii), inclusive, of Section 6(a)), and purchase any Common Shares
     tendered, if such tender offer is made in response to a tender offer made
     by a party which is not an Affiliate of SCG and is not instigated by SCG
     for the purpose of avoiding its obligations under this Agreement.

          (d) During the term of this Agreement, neither SCG, any officer or
     director of SCG nor any Person that owns, directly or indirectly, more than
     20% of SCG's then outstanding voting securities will, directly or
     indirectly, act in concert with any other Person or Persons or form a Group
     for the purpose of acquiring Common Shares or securities convertible or
     exchangeable into or exercisable for Common Shares; provided, however,
     nothing in this Section 6(d) shall prohibit SCG from acquiring Common
     Shares or securities convertible or exchangeable into or exercisable for
     Common Shares pursuant to Section 6(a) of this Agreement.

     7.  Registration Rights.

          (a) Demand.  At any time after the date hereof and for so long
     thereafter as SCG shall continue to own any Registrable Securities, SCG may
     request registration of all or any part of its Registrable Securities
     pursuant to Rule 415 under the Securities Act by delivering written notice
     to the Company specifying the number of Registrable


                                     -12-
<PAGE>
 
     Securities that SCG desires to sell, and the Company shall use its
     reasonable efforts to effect the registration of such Registrable
     Securities under the Securities Act.

          (b) Registration Procedures.  If and whenever the Company is required
     by any of the provisions of this Section 7 to use its reasonable efforts to
     effect the registration of any of the Registrable Securities under the
     Securities Act, the Company shall:

               (i) prepare and file with the Commission a registration statement
          with respect to such securities and use its reasonable efforts to
          cause such registration statement to become effective and remain
          effective for as long as shall be necessary to complete the
          distribution of at least 90% of the Registrable Securities so
          registered;

               (ii) prepare and file with the Commission such amendments and
          supplements to such registration statement, and the prospectus used in
          connection therewith, as may be necessary to keep such registration
          statement effective for so long as shall be necessary to complete the
          distribution of at least 90% of the Registrable Securities so
          registered and to comply with the provisions of the Securities Act
          with respect to the sale or other disposition of all securities
          covered by such registration statement whenever SCG shall desire to
          sell or otherwise dispose of the same within such period;

               (iii)  furnish to SCG such numbers of copies of such registration
          statement, each amendment and supplement thereto, the prospectus
          included in such registration statement, including any preliminary
          prospectus, and any amendment or supplement thereto, and such other
          documents, as may be reasonably requested in order to facilitate the
          sale or other disposition of the Registrable Securities owned by SCG;

               (iv) use its reasonable efforts to register and qualify the
          securities covered by such registration statement under such other
          securities or blue sky laws of such jurisdictions as SCG shall
          reasonably request, and do any and all other acts and things
          reasonably requested by SCG to assist the public sale or other
          disposition by SCG in such jurisdictions of the securities owned by
          SCG, except that the Company shall not for any such purpose be
          required to qualify to do business as a foreign corporation in any
          jurisdiction wherein it is not so qualified or to file therein any
          general consent to service of process;

               (v) otherwise use its reasonable efforts to comply with all
          applicable rules and regulations of the Commission, and make available
          to its security holders, as soon as reasonably practicable, an
          earnings statement covering the period of at least twelve months,
          beginning with the first fiscal quarter beginning after the effective
          date of the registration statement, which earnings statement shall
          satisfy the provisions of Section 11(a) of the Securities Act;


                                     -13-
<PAGE>
 
               (vi) use its reasonable efforts to list such securities on any
          securities exchange or quotation system on which any securities of the
          Company are then listed, if the listing of such securities is then
          permitted under the rules of such exchange or quotation system; and

               (vii)  notify SCG, at any time when a prospectus relating to the
          Registrable Securities is required to be delivered under the
          Securities Act, of the happening of any event of which it has
          knowledge as a result of which the prospectus included in such
          registration statement, as then in effect, contains an untrue
          statement of a material fact or omits to state a material fact
          required to be stated therein or necessary to make the statements
          therein not misleading in the light of the circumstances then
          existing.

          (c) Number of Registrations.  SCG shall be entitled to request one
     registration of its Registrable Securities pursuant to Section 7(a) for
     each $100 million in Value of Registrable Securities Beneficially Owned by
     SCG on the date of such request.

          (d) Company's Ability to Postpone.  The Company shall have the right
     to postpone the filing of a registration statement under this Section 7 for
     a reasonable period of time (not exceeding 60 days) if the Company
     furnishes SCG with a certificate signed by any Senior Officer stating that,
     in its good faith judgment, the Board has determined that effecting the
     registration at such time would adversely affect a material financing,
     acquisition, disposition of assets or shares, merger or other comparable
     transaction or would require the Company to make public disclosure of
     information the public disclosure of which would have a material adverse
     effect upon the Company.

          (e) Expenses.  All expenses incurred in the registration of
     Registrable Securities under this Agreement shall be paid by the Company.
     The expenses shall include, without limitation, the expenses of preparing
     the registration statement and the prospectus used in connection therewith
     and any amendment or supplement thereto, printing and photocopying
     expenses, all registration and filing fees under Federal and state
     securities laws, and expenses of complying with the securities or blue sky
     laws of any jurisdictions; provided, however, that SCG shall be responsible
     for paying the fees and disbursements of its own counsel and any
     underwriting discounts, commissions and fees.

          (f) Indemnification.   In the event any Registrable Securities are
     included in a registration statement under this Section 7:

               (i) Indemnity by Company.  Without limitation of any other
          indemnity provided to SCG, to the extent permitted by law, the Company
          will indemnify and hold harmless SCG and its officers, directors and
          each Person, if any, who controls SCG (within the meaning of the
          Securities Act or the Exchange Act), against any losses, claims,
          damages, liabilities and expenses (joint or several) to which they may
          become subject under the Securities Act, the Exchange Act or


                                     -14-
<PAGE>
 
          other federal or state law, insofar as such losses, claims, damages,
          liabilities and expenses (or actions in respect thereof) arise out of
          or are based upon any of the following statements, omissions or
          violations (collectively a "Violation"): (i) any untrue statement or
          alleged untrue statement of a material fact contained in any
          registration statement (including any preliminary prospectus or final
          prospectus contained therein or any amendments or supplements
          thereto), (ii) the omission or alleged omission to state therein a
          material fact required to be stated therein or necessary to make the
          statements therein, in light of the circumstances under which they
          were made, not misleading, or (iii) any violation or alleged violation
          by the Company of the Securities Act, the Exchange Act, any state
          securities law or any rule or regulation promulgated under the
          Securities Act, the Exchange Act or any state securities law, and the
          Company will reimburse SCG and its officers, directors and any
          controlling person thereof for any reasonable legal or other expenses
          incurred by them in connection with investigating or defending any
          such loss, claim, damage, liability, expense or action; provided,
          however, that the Company shall not be liable in any such case for any
          such loss, claim, damage, liability, expense or action to the extent
          that it arises out of or is based upon a Violation that occurs in
          reliance upon and in conformity with written information furnished
          expressly for use in connection with such registration by SCG or any
          officer, director or controlling person thereof.

               (ii) Indemnity by SCG.  In connection with any registration
          statement in which SCG is participating, SCG will furnish to the
          Company in writing such information and affidavits as the Company
          reasonably requests for use in connection with any such registration
          statement or prospectus and, to the extent permitted by law, will
          indemnify the Company, its trustees and officers and each Person who
          controls the Company (within the meaning of the Securities Act or
          Exchange Act) against any losses, claims, damages, liabilities and
          expenses resulting from any Violation, but only to the extent that
          such Violation is contained in any information or affidavit so
          furnished in writing by SCG; provided, that the obligation to
          indemnify will be several and not joint and several with any other
          Person and will be limited to the net amount received by SCG from the
          sale of Registrable Securities pursuant to such registration
          statement.

               (iii)  Notice; Right to Defend.  Promptly after receipt by an
          indemnified party under this Section 7(f) of notice of the
          commencement of any action (including any governmental action), such
          indemnified party will, if a claim in respect thereof is to be made
          against any indemnifying party under this Section 7(f), deliver to the
          indemnifying party a written notice of the commencement thereof and
          the indemnifying party shall have the right to participate in, and, if
          the indemnifying party agrees in writing that it will be responsible
          for any costs, expenses, judgments, damages and losses incurred by the
          indemnified party with respect to such claim, jointly with any other
          indemnifying party similarly noticed, to assume the defense thereof
          with counsel mutually satisfactory to the parties; provided, however,
          that an indemnified party shall have the right to retain its own


                                     -15-
<PAGE>
 
          counsel, with the fees and expenses to be paid by the indemnifying
          party, if the indemnified party reasonably believes that
          representation of such indemnified party by the counsel retained by
          the indemnifying party would be inappropriate due to actual or
          potential differing interests between such indemnified party and any
          other party represented by such counsel in such proceeding.  The
          failure to deliver written notice to the indemnifying party within a
          reasonable time of the commencement of any such action shall relieve
          such indemnifying party of any liability to the indemnified party
          under this Section 7(f) only if and to the extent that such failure is
          prejudicial to its ability to defend such action, and the omission to
          deliver written notice to the indemnifying party will not relieve it
          of any liability that it may have to any indemnified party other than
          under this Section 7(f).

               (iv) Contribution.  If the indemnification provided for in this
          Section 7(f) is held by a court of competent jurisdiction to be
          unavailable to an indemnified party with respect to any loss,
          liability, claim, damage or expense referred to therein, then the
          indemnifying party, in lieu of indemnifying such indemnified party
          thereunder, shall contribute to the amount paid or payable by such
          indemnified party as a result of such loss, liability, claim, damage
          or expense in such proportion as is appropriate to reflect the
          relative fault of the indemnifying party on the one hand and of the
          indemnified party on the other hand in connection with the statements
          or omissions which resulted in such loss, liability, claim, damage or
          expense as well as any other relevant equitable considerations.  The
          relevant fault of the indemnifying party and the indemnified party
          shall be determined by reference to, among other things, whether the
          untrue or alleged untrue statement of a material fact or the omission
          to state a material fact relates to information supplied by the
          indemnifying party or by the indemnified party and the parties'
          relative intent, knowledge, access to information and opportunity to
          correct or prevent such statement or omission.  Notwithstanding the
          foregoing, the amount SCG shall be obligated to contribute pursuant to
          this Section 7(f)(iv) shall be limited to an amount equal to the
          proceeds to SCG of the Registrable Securities sold pursuant to the
          registration statement which gives rise to such obligation to
          contribute (less the aggregate amount of any damages which SCG has
          otherwise been required to pay in respect of such loss, claim, damage,
          liability or action or any substantially similar loss, claim, damage,
          liability or action arising from the sale of such Registrable
          Securities).

               (v) Survival of Indemnity.  The indemnification provided by this
          Section 7(f) shall be a continuing right to indemnification and shall
          survive the registration and sale of any securities by any Person
          entitled to indemnification hereunder and the expiration or
          termination of this Agreement.


                                     -16-
<PAGE>
 
          (g)  Limitations on Registration Rights.

               (i) The Company shall not, without the prior written consent of
          SCG, include in any registration in which SCG has a right to
          participate pursuant to this Agreement any securities of any Person
          other than SCG.

               (ii)  SCG shall not, without the prior written consent of the
          Company, effect any public sale or distribution (including sales
          pursuant to Rule 144 under the Securities Act) of securities of the
          Company during any period commencing 30 days prior to and ending 60
          days after the effective date of any registration statement filed by
          the Company on behalf of any Person (including the Company), other
          than a registration statement on Form S-8 or any successor form.

          (h) Registrable Securities.  The term "Registrable Securities" means
     (i) any Common Shares now owned or hereafter acquired by SCG and (ii) any
     Common Shares or other securities that may subsequently be issued with
     respect to such Common Shares as a result of a share split or dividend or
     any sale, transfer, assignment or other transaction by the Company
     involving the Common Shares and any securities into which the Common Shares
     may thereafter be changed as a result of merger, consolidation,
     recapitalization or otherwise.  As to any particular Registrable
     Securities, such securities will cease to be Registrable Securities when
     they have been distributed to the public pursuant to an offering registered
     under the Securities Act.  All Registrable Securities shall cease to be
     Registrable Securities when all such securities may be sold in any three-
     month period pursuant to Rule 144, or any successor to such rule, under the
     Securities Act.

          (i) Assignment.  SCG may assign without the consent of the Company its
     rights under this Section 7 with respect to any Registrable Securities to
     any party (a "Lender") to whom it provides a bona fide pledge, assignment
     or hypothecation of such Registrable Securities.  If (i) SCG assigns its
     rights under this Section 7 with respect to Registrable Securities having
     an aggregate offering value of at least $100,000,000 to a Lender and (ii)
     any Event of Default occurs and is continuing under the related loan
     agreement between SCG (or one of its subsidiaries) and the Lender, the
     Lender may request one registration of all or part of its Registrable
     Securities having an aggregate offering value of at least $100,000,000 on
     Form S-3 (or any successor form) under the Securities Act by delivering
     written notice to the Company specifying the number of Registrable
     Securities that the Lender desires to sell and the Company shall use its
     reasonable efforts to effect the registration of such Registrable
     Securities under the Securities Act in accordance with and subject to the
     provisions of this Section 7.

     8.   Miscellaneous.

     (a)  Survival of Representations, Warranties and Covenants.   All
representations, warranties and covenants contained herein shall survive the
execution of this Agreement and


                                      -17-
<PAGE>
 
shall remain in full force and effect until terminated in accordance with the
provisions of this Agreement.

     (b) Successors and Assigns.  This Agreement shall be binding upon, and
inure to the benefit of, the parties hereto and their respective heirs, personal
representatives, successors, assigns and affiliates, but (except as provided in
Section 7(i)) shall not be assignable by any party hereto without the prior
written consent of the other party hereto.

     (c) Notices.  All notices and other communications hereunder shall be in
writing and shall be deemed given if delivered personally, sent via a recognized
overnight courier with delivery confirmed in writing or sent via facsimile to
the parties at the following addresses (or such other address for a party as
shall be specified by like notice):

     If to the Company:

          Security Capital Pacific Trust
          125 Lincoln Avenue
          Sante Fe, New Mexico  87501
          Attention:   R. Scot Sellers
          Facsimile:    (505) 989-8533

     If to SCG:

          Security Capital Group Incorporated
          125 Lincoln Avenue
          Santa Fe, New Mexico  87501
          Attention:  Jeffrey A. Klopf
          Facsimile:  (505) 988-8920

     (d) Waiver.  No party may waive any of the terms or conditions of this
Agreement, except by a duly executed writing referring to the specific provision
to be waived.

     (e) Amendment.  This Agreement may be amended only by a writing duly
executed by both the Company and SCG.

     (f) Severability.  Insofar as is possible, each provision of this Agreement
shall be interpreted so as to render it valid and enforceable under applicable
law and severable from the remainder of this Agreement.  A finding that any such
provision is invalid or unenforceable in any jurisdiction shall not affect the
validity or enforceability of any other provision or the validity or
enforceability of such provision under the laws of any other jurisdiction.

     (g) Entire Agreement.  This Agreement constitutes the entire agreement, and
supersedes all other prior agreements and understandings, both written and oral,
among the parties hereto and their affiliates, with respect to the subject
matter hereof.


                                     -18-
<PAGE>
 
     (h) Expenses.  Except as otherwise expressly contemplated herein to the
contrary, regardless of whether the transactions contemplated hereby are
consummated, each party hereto shall pay its own expenses incident to preparing
for, entering into and carrying out this Agreement and the consummation of the
transactions contemplated hereby.

     (i) Captions.  The Section and Paragraph captions herein are for
convenience of reference only, do not constitute part of this Agreement and
shall not be deemed to limit or otherwise affect any of the provisions hereof.

     (j) Counterparts.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which shall
constitute one and the same instrument.

     (k) Governing Law.  This Agreement shall be governed by, and construed and
enforced in accordance with, the laws of the State of Maryland.

     (l) Specific Performance.  Each of the parties hereto acknowledges that the
obligations undertaken by it pursuant to this Agreement are unique and that the
other party will not have an adequate remedy at law if it shall fail to perform
any of its obligations hereunder, and each of the parties hereto therefore
confirms that the right of the other party to specific performance of the terms
of this Agreement is essential to protect the rights and interests of such
party.  Accordingly, in addition to any other remedies that either party hereto
may have at law or in equity, SCG shall have the right to have all obligations,
covenants, agreements and other provisions of this Agreement specifically
performed by the other party, and each party shall have the right to obtain
preliminary and permanent injunctive relief to secure specific performance and
to prevent a breach or contemplated breach of this Agreement by the other party.

     (m) Limitation of Liability.  Any obligation or liability whatsoever of the
Company which may arise at any time under this Agreement or any obligation or
liability which may be incurred by it pursuant to any other instrument,
transaction or undertaking contemplated hereby shall be satisfied, if at all,
out of the Company's assets only.  No such obligation or liability shall be
personally binding upon, nor shall resort for the enforcement thereof be had to,
the property of any of its shareholders, trustees, officers, employees or
agents, regardless of whether such obligation or liability is in the nature of
contract, tort or otherwise.

                           *     *     *     *     *

                                     -19-
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed and delivered as of the day and year first above written.

                                    SECURITY CAPITAL PACIFIC TRUST
                

                                    By:  -----------------------------------
                                         R. Scot Sellers
                                         Managing Director


                                    SECURITY CAPITAL GROUP INCORPORATED


                                    By:
                                        -----------------------------------
                                        Jeffrey A. Klopf
                                        Senior Vice President and Secretary



                                     -20-

<PAGE>

                                                                    EXHIBIT 10.2

                       ADMINISTRATIVE SERVICES AGREEMENT
                       ---------------------------------

     THIS ADMINISTRATIVE SERVICES AGREEMENT (this "Agreement") is made and
entered into as of this _____ day of __________, 1997, by and between Security
Capital Pacific Trust, a Maryland real estate investment trust (the "Company"),
and SC Group Incorporated, a Texas corporation ("SC Group"), and a wholly owned
direct or indirect subsidiary of Security Capital Group Incorporated.

     WHEREAS, the Company wishes to purchase from SC Group certain
administrative services designed to assist the Company in the cost-efficient
management of the Company's trust and business affairs in the manner and
pursuant to terms and conditions as more specifically described herein; and

     WHEREAS, SC Group desires to provide or cause to be provided those services
requested by the Company under such terms and conditions; and

     WHEREAS, SC Group will perform similar administrative services for other
entities (collectively "SC Group Clients") which may vary from time to time; and

     WHEREAS, the Company will retain the sole and absolute right and authority
to fully and completely operate and manage its business and properties.

     NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and agreements set forth herein, and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, and
intending to be legally bound hereby, the parties hereto agree as follows:

     Section 1.  Services.

          1.1  Services to be Rendered.  SC Group shall provide the Company with
the services described below (each, a "Service", and collectively, the
"Services") as selected from time to time by the Company:

          (a)  Insurance Administration.  Assistance in securing all forms of
     insurance, including property, casualty, workers' compensation and
     trustees' and officers' liability coverage; managing insurance policies;
     negotiation of premiums; arranging payment terms; managing claims; and
     preparation of loss fund analysis.  The amount and levels of insurance
     shall be determined in the sole and absolute discretion of the Company.

          (b)  Accounts Payable.  Provision of all accounts payable functions
     (currently all non site-level invoices); processing of all employee expense
     reports and reimbursements of travel and entertainment expenses; and
     maintenance of accounts payable and cash disbursement systems, including
     reasonable internal controls.

<PAGE>
 
          (c)  Internal Audit. Provision of internal audit coverage and audit
     support, including property audits, financial audits, operational audits
     and information system audits, as requested and authorized in advance by
     the Company.

          (d)  Cash Management. Operation and maintenance of collection systems,
     concentration systems, and electronic disbursements (including wire
     transfers, ACH payments and short term investing); maintenance of bank
     accounts, including opening and closing of operating, security deposits,
     local depository and petty cash accounts; bank administration, and
     maintenance of bank relationships.

          (e)  Human Resources.

               (i)    Benefit Administration. Negotiation and administration of
          all health, dental, vision, life and long-term and short-term
          disability insurance plans as well as 401(k) and flexible spending
          plans; and administration of other miscellaneous employee benefits.

               (ii)   Human Resources Information Systems. Administration and
          employee and labor relations including statutory compliance with all
          governmental agencies, affirmative action, work force demographics;
          processing wage and hour claims and utilization and EEO charges; and
          compliance with annual reporting requirements.

               (iii)  Payroll. Production of payroll and related items;
          maintenance of required records; compliance with federal and state
          wage and hour regulations; tracking benefit hours; tracking and paying
          wage garnishments and related orders; maintenance of Forms W-2; and
          production and processing of special payroll checks.

               (iv)   Pre-Employment. Development of employment policies and
          procedures; verification of applicant information such as drivers
          license numbers, social security numbers, education, criminal
          offenses, and past employment; and drug testing.

               (v)    Recruiting. Recruiting and retaining employees of the
          Company for the El Paso Operations Center who will perform services
          for the Company, including placement of newspaper advertisements,
          contracting and negotiating with search consultants, screening of
          candidates, interviews and employee orientation; processing new hires,
          terminations, transfers, leaves of absence and miscellaneous status
          changes as requested and authorized in advance by the Company.

                                      -2-
<PAGE>
 
          (f)  Management Information Systems.

               (i)   Applications Development. Development, maintenance and
          continuing evolution of system applications to provide technology
          solutions to business needs and problems, as requested and authorized
          in advance by the Company.

               (ii)  Telecommunications. Design, operation and maintenance of
          network infrastructure, including telephone and data transmission
          lines, voice mail, facsimile machines, cellular phones, pager, etc.;
          negotiation of contracts with third party vendors and suppliers; and
          local area network and wide area network communications support.

               (iii) Operations/Technical Support and User Support. Design,
          maintenance and operation of the computing environment, including
          business specific applications, network wide applications, electronic
          mail and other systems; purchase and maintenance of equipment,
          including hardware and software; configuration, installation and
          support of computer equipment; and education and training of the user
          community.

          (g)  Tax Administration. Supervision and direction of the preparation,
     review and filing of all federal, state and other required tax returns;
     supervision and direction of ad hoc requests for assistance on tax related
     matters; and coordination of all activities with the Company's outside tax
     preparer, as requested and authorized in advance by the Company. All tax
     matters shall be determined by the Company in its absolute and sole
     discretion.

          (h)  Special Projects. Direction and support of all special projects,
     as requested and authorized in advance by the Company.

          (i)  Legal. Coordination and supervision of all third party legal
     services; assistance in the preparation of public filings and registration
     statements; and oversight of processing of claims against the Company.

          (j)  Research. Provision of periodic market research reports and
     special research assignments as requested by the Company.

          (k)  Investor Relations/Communications.

               (i)  Capital Markets. Advice and services relating to capital
          raising transactions and relationship with shareholders, but not
          including solicitation of investors as a broker, dealer or underwriter
          in any capital raising transactions of the Company.

                                      -3-
<PAGE>
 
               (ii) Communications. Preparation and coordination of annual and
          quarterly reports to shareholders; presentations to public; public
          relations; preparation of marketing materials; and investor relations
          services.

          (l)  Debt Financing. Advice and services relating to revolving lines
     of credit and other issuances of indebtedness.

          1.2  Scope of Services and Charges. The parties will agree from time
to time on the Services to be provided, the scope of Services listed in Section
1.1 and the charges for such Services. The scope of Services shall consist of
the estimated amount of items to be processed or hours to be spent for a
category of the Services in any year as agreed to by the parties. The charges
for Services shall consist of an amount equal to SC Group's costs incurred in
providing such Services, multiplied by 120%. If the scope of Services actually
performed by SC Group in any category of Services is different than that agreed
to by the parties, or if the scope of Services is increased at the request of
the Company, then the parties shall negotiate in good faith to revise the scope
of Services and to adjust the charges for such Services. The parties shall
review annually the Services provided, the scope of Services and the charges for
such Services and negotiate in good faith and make appropriate adjustments. The
parties agree to complete each annual review not later than November 30 in each
year of this Agreement.

          1.3  Performance of Services. SC Group covenants that it will perform
or cause to be performed the Services in a timely, efficient and workmanlike
manner and in substantially the same manner in which SC Group is providing such
services to the Company currently. SC Group further covenants that it will
maintain or contract for a sufficient staff of trained personnel to enable it to
perform the Services hereunder. SC Group may retain third parties or its
affiliates to provide certain of the Services hereunder. In such cases, and
notwithstanding anything herein to the contrary, the Company shall reimburse SC
Group for only its actual cost for arranging for such Services. Any arrangements
between SC Group and its affiliates for the provision of Services hereunder
shall be commercially reasonable and on terms not less favorable than those
which could be obtained from unaffiliated third parties.

          1.4  Payment for Services. SC Group shall bill the Company, at the end
of each calendar month, one-twelfth of the amount agreed to from time to time
pursuant to Section 1.2 for the applicable Service. Such amount shall be payable
by the Company in full within 30 days of receipt thereof by the Company. On the
forty-fifth day following the end of each calendar year, SC Group shall provide
to the Company a statement, certified by a senior officer of SC Group, setting
forth by category of Service the amount and nature of such Services actually
performed during the period covered by such statement. Such statement shall also
set forth the dollar amount, if any, by which the amounts previously paid by the
Company for the provision of each specific category of Services for such period
is greater or less than the charges agreed for such Services (in each such case,
an "excess", and, if a shortfall, a "shortfall"). Any such excess or shortfall
shall be refunded to the Company or paid by the Company, as applicable, within
30 days of the receipt of the statement. Notwithstanding anything in this

                                      -4-
<PAGE>
 
Agreement to the contrary, the aggregate fees for Services provided by SC Group
to the Company (exclusive of reimbursements of third-party costs) shall not
exceed $7,717,447 during the Initial Term (subject to the actual usage of
Services by the Company not being materially in excess of that set forth in the
budget previously provided by SC Group to the Company).

          1.5  Reimbursement. The Company shall reimburse SC Group for all
reasonable third party out-of-pocket expenses it incurs on behalf of the Company
not billed directly to the Company within 30 days of receipt of the invoice
therefor.

     Section 2.  Facilities. SC Group hereby grants to the Company the right to
use the Facilities set forth on Exhibit A. The Company shall not pay any
additional compensation to SC Group for the use of such Facilities during the
twelve-month period following the date of this Agreement. From and after the
expiration of such twelve-month period, the Company shall pay SC Group rental
for the use of such Facilities as may be agreed between the parties negotiating
in good faith. SC Group and the Company agree that during the term of this
Agreement they shall cooperate and use reasonable efforts in order to allocate
the Facilities in accordance with the reasonable requests (based on their
business needs) of each of SC Group, the Company and other SC Group Clients. The
Company acknowledges and agrees that within 60 days of the expiration of the
term of this Agreement, it shall leave the Facilities in the same condition as
at the commencement of the term of the Agreement, ordinary wear and tear and
damage by casualty excepted.

     Section 3.  Term. The initial term of this Agreement shall commence on the
date hereof and shall be through December 31, 1998 (the "Initial Term") and
shall be renewable by the Company every year thereafter, subject to approval by
a majority of the Independent Trustees (which they may withhold or grant in
their sole discretion). Absent written notice of non-renewal as provided in this
Section 3, this Agreement shall be automatically renewed for successive one-year
terms (each, a "Renewal Term") upon the expiration of the Initial Term and each
Renewal Term. Notice of non-renewal, if given, shall be given in writing by
either party hereto not less than ninety (90) calendar days before the
expiration of the Initial Term or any Renewal Term. Upon termination of this
Agreement, SC Group shall promptly return to the Company all monies, books,
records and other materials held by it for or on behalf of the Company. As used
herein, the term "Independent Trustees" means each member of the Company's Board
of Trustees who is not affiliated with Security Capital Group Incorporated
("SCG") or any of its affiliates, directly or indirectly, whether by ownership
of, ownership interest in, employment by, any material business or professional
relationship with, or service as an officer of SCG or any of its affiliates, and
is not serving as a trustee or director for more than three real estate
investment trusts organized by a sponsor of the Company.

     Section 4.  Audit of Services. At any time during regular business hours
and as often as reasonably requested by the Company's officers, SC Group shall
permit the Company or its authorized representatives to examine and make copies
and abstracts from the records and books of SC Group for the purpose of auditing
the performance of, and the charges of, SC Group

                                      -5-
<PAGE>
 
under the terms of this Agreement; provided, that all costs and expenses of such
inspection shall be borne by the Company.

     Section 5.  Prevention of Performance. SC Group shall not be determined to
be in violation of this Agreement if it is prevented from performing any
Services hereunder for any reason beyond its reasonable control, including
without limitation, acts of God, nature, or of public enemy, strikes, or
limitations of law, regulations or rules of the Federal or of any state or local
government or of any agency thereof.

     Section 6.  Indemnification.

          6.1  By the Company. The Company shall indemnify, defend and hold SC
Group, and its directors, officers, and employees harmless from and against all
damages, losses and reasonable out-of-pocket expenses (including fees) incurred
by them in the course of performing the duties on behalf of the Company and its
subsidiaries as prescribed hereby, except for matters covered by subsection 6.2
hereof.

          6.2  By SC Group. SC Group shall indemnify, defend and hold the
Company, its trustees, officers and employees harmless from and against all
damages, losses and reasonable out-of-pocket expenses (including fees) caused by
or arising out of any willful misconduct or gross negligence in the performance
of any obligation or agreement of SC Group herein.

          6.3  Remedy. Except as otherwise provided in subsection 6.2 hereof, SC
Group does not assume any responsibility under this Agreement other than to
render the services called for under this Agreement in good faith and in a
manner reasonably believed to be in the best interests of the Company. Except as
otherwise provided in subsection 6.2 hereof, the Company's sole remedy on
account of the failure of SC Group to render the services as and when required
hereunder shall be to procure services elsewhere and to charge SC Group the
difference between the reasonable increased cost, if any, to procure new
services, and the current cost to the Company to procure services under this
Agreement.

     Section 7.  Notices.

          7.1  Manner of Delivery. Each notice, demand, request, consent,
report, approval or communication (each a "Notice") which is or may be required
to be given by either party to the other party in connection with this Agreement
and the transactions contemplated hereby, shall be in writing, and given by
telecopy, personal delivery, receipted delivery service, or by certified mail,
return receipt requested, prepaid and properly addressed to the party to be
served.

                                      -6-
<PAGE>
 
          7.2  Addresses.  Notices shall be addressed as follows:

               If to the Company:

                    Security Capital Pacific Trust
                    125 Lincoln Avenue
                    Santa Fe, New Mexico  87501
                    Attention:  R. Scot Sellers

               If to SC Group:

                    SC Group Incorporated
                    7777 Market Center Avenue
                    El Paso, Texas  79912
                    Attention:  Gerald R. Morgan, Jr.

          7.3  Effective Date. Notices shall be effective on the date sent via
telecopy, the date delivered personally or by receipted delivery service, or
three (3) days after the date mailed.

          7.4  Change of Address. Each party may designate by notice to the
others in writing, given in the foregoing manner, a new address to which any
notice may thereafter be so given, served or sent.

     Section 8.  Entire Agreement. This Agreement, together with the Exhibit
hereto, constitutes and sets forth the entire agreement and understanding of the
parties pertaining to the subject matter hereof, and no prior or contemporaneous
written or oral agreements, understandings, undertakings, negotiations,
promises, discussions, warranties or covenants not specifically referred to or
contained herein or attached hereto shall be valid and enforceable. No
supplement, modification, termination in whole or in part, or waiver of this
Agreement shall be binding unless executed in writing by the party to be bound
thereby. No waiver of any of the provisions of this Agreement shall be deemed,
or shall constitute, a waiver of any other provision hereof (whether or not
similar), nor shall any such waiver constitute a continuing waiver unless
otherwise expressly provided.

     Section 9.  Binding Effect. This Agreement shall be binding upon and shall
inure to the benefit of the parties hereto, each of their respective successors
and permitted assigns, but may not be assigned by either party without the prior
written consent of the other party, and no other persons shall have or derive
any right, benefit or obligation hereunder.

     Section 10.  Headings. The headings and titles of the various paragraphs of
this Agreement are inserted merely for the purpose of convenience, and do not
expressly or by

                                      -7-
<PAGE>
 
implication limit, define, extend or affect the meaning or interpretation of
this Agreement or the specific terms or text of the paragraph so designated.

     Section 11.  Governing Law.  This Agreement shall be governed in all
respects, whether as to validity, construction, capacity, performance or
otherwise, by the laws of the State of Texas.

     Section 12.  Severability.  If any provision of this Agreement shall be
held invalid by a court with jurisdiction over the parties to this Agreement,
then and in that event such provision shall be deleted from the Agreement, which
shall then be construed to give effect to the remaining provisions thereof.  If
any one or more of the provisions contained in this Agreement or in any other
instrument referred to herein shall, for any reason, be held to be invalid,
illegal or unenforceable in any respect, then in that event, to the maximum
extent permitted by law, such invalidity, illegality or enforceability shall not
affect any other provisions of this Agreement or any other such instrument.

     Section 13.  Counterparts.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original, but all of which taken
together shall be considered one and the same instrument.

                                      -8-
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.



                         SECURITY CAPITAL PACIFIC TRUST


                         By:  -----------------------------------
                              R. Scot Sellers
                              Managing Director



                         SC GROUP INCORPORATED


                         By:  -----------------------------------
                              Gerald R. Morgan, Jr.
                              Vice President


                                      S-1
<PAGE>
 
                                   EXHIBIT A

                           Description of Facilities
                           -------------------------

     For purposes of the Administrative Services Agreement, Facilities shall
mean the facilities maintained by SC Group or one of its affiliates at the
following addresses:

     7777 Market Center Avenue
     El Paso, Texas  79912

     125 Lincoln Avenue
     Santa Fe, New Mexico  87501

     Facilities shall also include any other premises owned, leased or subleased
by SC Group at which the Company desires to utilize such premises as well as the
utilities, fixtures, furniture and equipment used in connection with the
operation of such premises.

<PAGE>
                                                                    EXHIBIT 10.3
 
                        PROTECTION OF BUSINESS AGREEMENT
                        --------------------------------


     THIS PROTECTION OF BUSINESS AGREEMENT (this "Agreement") is entered into as
of ________ __, 1997, by and among Security Capital Pacific Trust, a Maryland
real estate investment trust ("PTR"), and Security Capital Group Incorporated, a
Maryland corporation ("Security Capital").

     WHEREAS, on the date hereof the parties are consummating a series of
related transactions as described in that certain Merger and Issuance Agreement,
dated as of March __, 1997, between PTR and Security Capital (the "Merger
Agreement"), pursuant to which, among other things, Security Capital will cause
its subsidiaries engaged in the conduct of the real estate investment trust
("REIT") management and property management businesses relating to the
Multifamily Property business of PTR to be merged with and into a subsidiary of
PTR;

     WHEREAS, PTR, Security Capital and their respective affiliates will
continue to engage in certain businesses after the date hereof; and

     WHEREAS, as a condition to the consummation of the transactions
contemplated by the Merger Agreement, the parties hereto desire to enter into
certain agreements restricting the activities of Security Capital and its
affiliates.

     NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, the receipt and sufficiency of which hereby are
acknowledged, the parties hereto agree as follows:

     Section 1.  Definitions.  Capitalized terms used herein shall have the
meanings set forth below:

     "Affiliate" with regard to any Person, means (a) any Person directly or
indirectly controlling, controlled by or under common control with such Person,
(b) any Person directly or indirectly owning or controlling 10% or more of the
outstanding voting interests of such Person or (c) any Person of which such
Person directly or indirectly owns or controls 10% or more of the voting
interests.  The term "Affiliates" and "Affiliated" shall have correlative
meanings.  For purposes of this Agreement, the term "Affiliate" shall not
include Security Capital U.S. Realty, a Luxembourg corporation, or any Person
controlled by Security Capital U.S. Realty and no party hereto shall be deemed
to be an Affiliate of any other party hereto.

     "Multifamily Property" means real property that is or is planned to be used
primarily for garden style multifamily dwellings which are generally leased for
six-month to twelve-month periods and require security deposits, including real
property that is or is planned to be used primarily for master-planned apartment
neighborhoods.
 
<PAGE>
 
     "Person" means an individual or any corporation, partnership, trust,
unincorporated association or any other legal entity.

     "Restricted Area" means the United States.

     Section 2.  Agreement not to Engage in Certain Activities.  During the term
provided in Section 5 hereof, neither Security Capital nor any REIT management
company (or companies) or property management company (or companies) Affiliated
with it will, directly or indirectly, provide substantially the same advice and
services as those provided by Security Capital Pacific Incorporated pursuant to
the Fifth Amended and Restated REIT Management Agreement, dated as of May 21,
1996, or by SCG Realty Services Incorporated pursuant to the Management
Agreement, dated as of October 1, 1996, on the day preceding the date of this
Agreement, to any Person owning or operating Multifamily Properties, anywhere
within the Restricted Area.

     Section 3.  Limitations on Protection of Business.  Notwithstanding
anything to the contrary contained in this Agreement, each of Security Capital
and its Affiliates may be an owner of securities of any class of PTR or Security
Capital Atlantic Incorporated.

     Section 4.  Reasonable and Necessary Restrictions.  Each of the parties
hereto acknowledges that the restrictions, prohibitions and other provisions
hereof are reasonable, fair and equitable in scope, terms and duration, are
necessary to protect the legitimate business interests of each of the other
parties hereto, and are a material inducement to such party to enter into the
transactions contemplated by the Merger Agreement.

     Section 5.  Term.

     5.1  General.  Subject to earlier termination pursuant to Section 5.2, this
Agreement shall be effective from and after the date hereof and shall continue
in effect until the third anniversary of the date hereof.

     5.2  Change in Control.  Notwithstanding anything to the contrary contained
herein, the provisions of Section 2 of this Agreement shall terminate and be of
no further force or effect upon the occurrence of a Change in Control.  As used
herein, "Change in Control" means the acquisition, directly or indirectly (other
than by purchase from Security Capital or any of its Affiliates), by any Person
(or group of Persons acting in concert), other than Security Capital or its
Affiliates, of the greater of (i) 25% or more of the outstanding shares of
voting securities of PTR and (ii) the percentage of outstanding voting
securities of PTR owned directly or indirectly by Security Capital and its
Affiliates, in either case without the prior written consent of the Board of
Trustees of PTR.

     Section 6.  Specific Performance.  Security Capital acknowledges that the
obligations undertaken by it pursuant to this Agreement are unique and that PTR
will not have an adequate remedy at law if Security Capital shall fail to
perform any of its obligations hereunder, and

                                      -2-
 
<PAGE>
 
Security Capital therefore confirms that the right of PTR to specific
performance of the terms of this Agreement is essential to protect the rights
and interests of PTR.  Accordingly, in addition to any other remedies that PTR
may have at law or in equity, PTR shall have the right to have all obligations,
covenants, agreements and other provisions of this Agreement specifically
performed by Security Capital, and PTR shall have the right to obtain
preliminary and permanent injunctive relief to secure specific performance and
to prevent a breach or contemplated breach of this Agreement by Security
Capital.

     Section 7.  Operations of Affiliated Parties.  Security Capital agrees that
it will refrain from authorizing or permitting any Affiliated party to perform
any activities that would be prohibited by the terms of this Agreement if such
activities were performed by it.

     Section 8.  Ancillary Agreements.  Nothing contained in this Agreement
shall in any way restrict or impair the obligations and rights of any party
under the terms of any agreement entered into in connection with the
transactions contemplated by the Merger Agreement.

     Section 9.  Miscellaneous Provisions.

     9.1  Interpretation.  The parties hereto acknowledge that the fundamental
policies of this Agreement are to protect PTR's interest in its business and to
eliminate potential conflicts of interest that may exist as a result of actions
taken or proposed to be taken by Security Capital, and this Agreement shall be
construed and enforced in a manner consistent with and in furtherance of these
policies.

     9.2  Binding Effect.  Subject to any provisions hereof restricting
assignment, all covenants and agreements in this Agreement by or on behalf of
any of the parties hereto shall bind and inure to the benefit of their
respective successors, assigns, heirs, and personal representatives.

     9.3  Assignment.  None of the parties hereto may assign any of its rights
under this Agreement, or attempt to have any other entity or individual assume
any of its obligations hereunder.

     9.4  Severability.  If performance of any provision of this Agreement, at
the time such performance shall be due, shall transcend the limit of validity
prescribed by law, then the obligation to be performed shall be reduced to the
limit of such validity; and if any clause or provision contained in this
Agreement operates or would operate to invalidate this Agreement, in whole or in
part, then such clause or provision only shall be held ineffective, as though
not herein contained, and the remainder of this Agreement shall remain operative
and in full force and effect.  The parties shall negotiate in good faith a
replacement clause or provision as consistent with the ineffective clause or
provision as is practicable under law.


                                      -3-
 
<PAGE>
 
     9.5  Governing Law.  This Agreement, the rights and obligations of the
parties hereto, and any claims or disputes relating thereto shall be governed by
and construed in accordance with the laws of the State of Maryland, not
including the choice-of-law rules thereof.

     9.6  Amendment.  Except as otherwise expressly provided in this Agreement,
no amendment, modification or discharge of this Agreement shall be valid or
binding unless set forth in writing and duly executed by each of the parties
hereto.

     9.7  Waiver.  Any waiver by any party or consent by any party to any
variation from any provision of this Agreement shall be valid only if in writing
and only in the specific instance in which it is given, and such waiver or
consent shall not be construed as a waiver of any other provision or as a
consent with respect to any similar instance or circumstance.

     9.8  Headings.  Section and subsection headings contained in this Agreement
are inserted for convenience of reference only, shall not be deemed to be a part
of this Agreement for any purpose, and shall not in any way define or affect the
meaning, construction or scope of any of the provisions hereof.

     9.9  No Presumption Against Drafter.  Each of the parties hereto have
jointly participated in the negotiation and drafting of this Agreement.  In the
event of an ambiguity or a question of intent or interpretation arises, this
Agreement shall be construed as if drafted jointly by each of the parties hereto
and no presumptions or burdens of proof shall arise favoring any party by virtue
of the authorship of any of the provisions of this Agreement.

     9.10  Execution in Counterparts.  This Agreement may be executed in one or
more counterparts, none of which need contain the signatures of each of the
parties hereto and each of which shall be deemed an original.

     9.11  Limitation of Liability.  Any obligation or liability whatsoever of
PTR which may arise at any time under this Agreement or any obligation or
liability which may be incurred by it pursuant to any other instrument,
transaction or undertaking contemplated hereby shall be satisfied, if at all,
out of PTR's assets only.  No such obligation or liability shall be personally
binding upon, nor shall resort for the enforcement thereof be had to, the
property of any of its shareholders, trustees, officers, employees or agents,
regardless of whether such obligation or liability is in the nature of contract,
tort or otherwise.

                           *      *     *     *     *



                                      -4-
<PAGE> 
     
     IN WITNESS WHEREOF, each of the undersigned has executed this Agreement, or
caused this Agreement to be duly executed on its behalf, as of the date first
set forth above.


                                  SECURITY CAPITAL PACIFIC TRUST


                                  By: _________________________
                                      R. Scot Sellers
                                      Managing Director
 

                                  SECURITY CAPITAL GROUP INCORPORATED


                                  By: _________________________
                                      Jeffrey A. Klopf
                                      Senior Vice President




                                      -5-



<PAGE>
 
                                                                    EXHIBIT 99.1


Press Release
- -For Immediate Release-

                        SECURITY CAPITAL PACIFIC TRUST
                                   Announces
         Board Approval of Proposal to Become Internally Managed REIT


     March 24, 1997 -- Security Capital Pacific Trust (New York Stock Exchange
Symbol: PTR) today announced that its Board of Trustees has unanimously approved
an agreement with Security Capital Group Incorporated to exchange Security
Capital Group's REIT management and property management companies for $75.8
million of PTR common stock. As a result of the transaction, PTR will become an
internally managed real estate investment trust (REIT) with Security Capital
Group continuing as its largest shareholder. Personnel employed by the REIT
management and property management companies will become employees of PTR. Based
on PTR's 1997 forecast, the transaction will be immediately accretive to PTR's
per share Funds for Operations (FFO).

     PTR Managing Director R. Scot Sellers said PTR's management believes the
proposed transaction will result in several important benefits for PTR and its
shareholders. "We believe the transaction's positive impact on long-term growth
in FFO will be significant. As PTR continues to deploy capital, PTR shareholders
will receive the incremental benefit of economies of scale. In addition, the
transaction will position PTR to pursue possible acquisitions during a period of
significant REIT consolidation." Mr. Sellers added that PTR's management
believes the market will view an internally managed structure more favorably,
which over time is expected to enhance shareholder value.

     Under the terms of the agreement, PTR will issue $75.8 million of PTR
common stock to Security Capital Group in exchange for Security Capital Group's
REIT management and property management companies and operating systems. The
price per PTR common share issued as part of the transaction will be based on
the average closing price of PTR's common shares reported by the New York Stock
Exchange for the five-day period prior to the PTR shareholder record date for
voting on the transaction. PTR and Security Capital Group have agreed that the
number of shares issued to Security Capital Group will not exceed a maximum of
approximately 3.5 million shares (equivalent to $21.64 per share) or fall below
a minimum of approximately 2.8 million shares (equivalent to $27.12 per share).

     PTR will also conduct a concurrent rights offering during the time proxies
are solicited from PTR shareholders to allow existing shareholders to maintain
their relative ownership interests in PTR. Holders of PTR common shares will
have the right to purchase $135 million of PTR common stock at the same price
paid by Security Capital Group. However, if the market price when the rights
offering commences is less than $21.64 per share, the offering will be conducted
at the lower price. The rights offering will be subject to a maximum price of
$27.12 per share.
<PAGE>
 
     As part of the transaction, Security Capital Group will issue warrants to 
acquire $102 million of Security Capital Group Class B common stock to PTR 
common and convertible preferred shareholders.  The warrants are expected to be 
publicly traded, will have a term of 12 months and will have an exercise price 
equal to the Class B trading price at the record date established for the 
warrant distribution.  The issuance of the Security Capital Group warrants will 
occur within 60 days after the closing of the proposed transaction.  Security 
Capital Group expects to file a registration statement with the Securities and 
Exchange Commission (SEC) covering the Class B shares within the next several 
weeks and to conduct an initial public offering of its Class B shares in the 
third quarter of 1997.

     In January, PTR's Board of Trustees formed a special committee of 
independent trustees to review the proposed transaction.  The special committee 
retained its own counsel and engaged the investment banking firm of Robertson 
Stephens & Company to advise the committee on the fairness of the transaction to
PTR and its shareholders other than Security Capital Group.  Following receipt 
of the fairness opinion, the special committee unanimously recommended that the 
proposed transaction be approved by the full board.  The transaction is subject 
to approval by holders of two-thirds of PTR's outstanding common shares, receipt
of favorable tax opinions and customary closing conditions.  The closing of the 
rights offering and the warrant distribution will be subject to the closing of 
the agreement between PTR and Security Capital Group.  PTR and Security Capital 
Group will file a combined registration statement and proxy statement relating 
to the proposed transaction with the SEC.  Any securities issued in connection 
with the rights offering and the warrant distribution will be offered only by 
means of a prospectus.  Management expects a shareholder vote to occur in the 
third quarter of 1997, and if approved, the transaction and the rights offering 
are expected to be concluded during the third quarter of 1997.

     The statements contained in this press release that are not historical 
facts are forward-looking statements under the federal securities laws.  These 
forward-looking statements are based on current expectations, estimates and 
projections about the industry and markets in which PTR operates, management's 
beliefs and assumptions made by management.  These statements are not guarantees
of future performance and involve certain risks, uncertainties and assumptions 
which are difficult to predict.  Therefore, actual outcomes and results may 
differ materially from what is expressed or forecasted in such forward-looking 
statements.

     PTR is focused on becoming the preeminent real estate operating company for
the development, acquisition, operation and long-term ownership of multifamily 
properties in the growing markets of the western United States.  PTR's primary 
objective is generating long-term, sustainable growth in per share cash flow.  
As of February 28, 1997, PTR's portfolio of garden-style multifamily 
communities included 42,556 operating units, 5,671 units under construction and 
an estimated 6,232 units in planning.  In addition, PTR owns land for future 
development of an expected 4,492 additional units.

FOR MORE INFORMATION, CONTACT:   K. Scott Canon
                                 (800) 982-9293
                                       or
                                 Gerard de Gunzburg
                                 (212) 838-9292


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