PUBLIC STORAGE INC /CA
S-4, 1996-01-31
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>
 
    As filed with the Securities and Exchange Commission on January 31, 1996
                                                    Registration No. 333-_______
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form S-4
                             REGISTRATION STATEMENT
                                     Under
                           The Securities Act of 1933

                                 --------------

                              PUBLIC STORAGE, INC.
             (Exact name of registrant as specified in its charter)

                                   California
         (State or other jurisdiction of incorporation or organization)
<TABLE> 
<CAPTION> 
<S>                                               <C> 
             95-3551121                                      6798
(I.R.S. Employer Identification No.)              (Primary Standard Industrial
                                                   Classification Code Number)

   600 North Brand Boulevard                                  HUGH W. HORNE
Glendale, California 91203-1241                            Public Storage, Inc.
       (818) 244-8080                                   600 North Brand Boulevard
(Address, including zip code, and                    Glendale, California 91203-1241
telephone number, including area code,                        (818) 244-8080
of registrant's principal executive offices)  (Name, address, including zip code, and telephone
                                              number, including area code, of agent for service)
</TABLE> 
                     
                                 --------------

                                   Copies to:

                              DAVID GOLDBERG, ESQ.
                              Public Storage, Inc.
                      600 North Brand Boulevard, Suite 300
                        Glendale, California 91203-1241

                                 --------------

        Approximate date of commencement of proposed sale to the public:
            As soon as practicable after the effective date of this
                            Registration Statement.

                                 --------------

     If the only securities being registered on this Form are being offered in
connection with the formation of a holding company, check the following box.[_]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.[X]


                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
==================================================================================================================
                                                                                 Proposed          Proposed
                                                        Amount      Offering     Maximum           Maximum
                                                        to be        Price       Aggregate        Amount of
 Title of Each Class of Securities to be Registered   Registered   Per Share   Offering Price   Registration Fee
- ------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>          <C>         <C>            <C>
Common Stock, $.10 par value per share                   (1)          (1)            (1)          $18,797(1)(2)
==================================================================================================================
</TABLE>
(1) This Registration Statement relates to (a) the proposed merger of Public
    Storage Properties IX, Inc. ("PSP9") into the Registrant and the conversion
    of shares of common stock of PSP9 into either cash (as to up to 20% of the
    outstanding shares of common stock of PSP9) or common stock of the
    Registrant and (b) the proposed merger of PS Business Parks, Inc. ("PSBP")
    into the Registrant and the conversion of shares of common stock of PSBP
    into either cash (as to up to 20% of the outstanding shares of common stock
    of PSBP) or common stock of the Registrant.  At the mergers, there will be a
    maximum of 2,447,506 shares of common stock of PSP9 outstanding and 534,159
    shares of common stock of PSBP outstanding.  The closing prices of the
    common stock of PSP9 and the common stock of PSBP on the American Stock
    Exchange on January 29, 1996 were $18.125 per share and $19.00 per share,
    respectively.  The number of shares of common stock of the Registrant to be
    issued in the mergers cannot be determined at this time.
(2) Calculated in accordance with rule 457(f)(1) under the Securities Act of
    1933.  $10,240 of the registration fee was previously paid in connection
    with PSP9's preliminary proxy materials.

    The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
================================================================================
<PAGE>
 
                              PUBLIC STORAGE, INC.

              Cross Reference Sheet Showing Location in Prospectus
                      of Information Required by Form S-4

<TABLE> 
<CAPTION> 

         Registration Statement Item                                     Location in Prospectus
         ---------------------------                                     ----------------------
<S>                                                                      <C> 
A.   Information About the Transaction
 
   1.  Forepart of Registration Statement and Outside Front             Front Cover Page 
       Cover Page of Prospectus
 
   2.  Inside Front and Outside Back Cover Pages of                     See page 1 and pages (iii)-(iv)  
       Prospectus                   
 
   3.  Risk Factors, Ratio of Earnings to Fixed Charges and             Risk Factors and Material Considerations
       Other Information
 
   4.  Terms of the Transaction                                         Summary and The Mergers
 
   5.  Pro Forma Financial Information                                  Pro Forma Financial Statements
 
   6.  Material Contacts with the Company Being Acquired                Risk Factors and Material
                                                                        Considerations, Conflicts of Interest
                                                                        in the Mergers and The Mergers
 
   7.  Additional Information Required for Reoffering by                *
       Persons and Parties Deemed to be Underwriters
 
   8.  Interests of Named Experts and Counsel                           Legal Opinions
 
   9.  Disclosure of Commission Position                                The Mergers -- Comparison of PSP9 and
       on Indemnification for Securities                                PSBP Common Stock with PSI Common
       Act Liabilities                                                  Stock -- Management and Duties
 
B.   Information About the Registrant
 
   10. Information with Respect to S-3 Registrants                      Incorporation of Certain Documents by Reference 
 
   11. Incorporation of Certain Information By Reference                Incorporation of Certain Documents by Reference
 
   12. Information with Respect to S-2 or S-3 Registrants               Incorporation of Certain Documents by Reference
 
   13. Incorporation of Certain Information By Reference                Incorporation of Certain Documents by Reference
 
   14. Information with Respect to Registrants Other than S-2 or S-3    Incorporation of Certain Documents by Reference  
       Registrants                                                          
</TABLE>
_________________

*  Omitted as Inapplicable.


                                     (ii)
<PAGE>
 
<TABLE> 
<CAPTION> 

C.  Information About the Company Being Acquired

<S>                                                                     <C> 
   15.  Information with Respect to S-3 Companies                       Incorporation of Certain Documents by Reference 

   16.  Information with Respect to S-2 or S-3 Companies                Incorporation of Certain Documents by Reference 
                        
   17.  Information with Respect to Companies Other                     Incorporation of Certain Documents by Reference 
        than S-2 or S-3 Companies                                      

D.   Voting and Management Information
 
   18.  Information if Proxies, Consents or Authorizations              Incorporation of Certain Documents by Reference 
        are to be Solicited  
 
   19.  Information if Proxies, Consents or Authorizations              Incorporation of Certain Documents by Reference 
        are not to be Solicited or in an Exchange Offer        
 
</TABLE>
_________________

  *  Omitted as Inapplicable.

                                     (iii)
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                             _______________, 1996


       A special meeting of shareholders of Public Storage Properties IX, Inc.,
  a California corporation ("PSP9"), will be held at PSP9's offices at 600 North
  Brand Boulevard, Suite 300, Glendale, California on _______________, 1996, at
  the hour of __________ for the following purposes:

       1.   To consider and vote upon an Agreement and Plan of Reorganization
            among PSP9, Public Storage, Inc. ("PSI") and PS Business Parks, Inc.
            ("PSBP") described in the accompanying Joint Proxy Statement and
            Prospectus pursuant to which (a) PSP9 would be merged with and into
            PSI (the "PSP9 Merger") and (b) PSBP would be merged with and into
            PSI (the "PSBP Merger" and collectively, the "Mergers").  Upon the
            Mergers, each outstanding share of PSP9 Common Stock Series A ("PSP9
            Common Stock") (other than shares held by PSI or by shareholders of
            PSP9 who have properly exercised dissenters' rights under California
            law ("Dissenting PSP9 Shares")) would be converted into the right to
            receive cash, PSI Common Stock or a combination of the two, as
            follows:  (i) with respect to a certain number of shares of PSP9
            Common Stock (not to exceed 20% of the outstanding PSP9 Common
            Stock, or 489,501 shares, less any Dissenting PSP9 Shares), upon a
            shareholder's election, $18.64 in cash, subject to reduction as
            described below (the "Cash Election") or (ii) that number (subject
            to rounding) of shares of PSI Common Stock determined by dividing
            $18.64, subject to reduction as described below, by the average of
            the per share closing prices on the New York Stock Exchange of PSI
            Common Stock during the 20 consecutive trading days ending on the
            fifth trading day prior to the special meeting of the shareholders
            of PSP9.  If a shareholder does not make a Cash Election, all of his
            or her PSP9 Common Stock would be converted into PSI Common Stock in
            the Mergers.  The consideration paid by PSI in the Mergers will be
            reduced on a pro rata basis by the amount of cash distributions
            required to be paid by PSP9 to its shareholders prior to completion
            of the Merger in order to satisfy PSP9's REIT distribution
            requirements ("Required PSP9 REIT Distributions").  The
            consideration received by the shareholders of PSP9 in the Mergers,
            however, along with any Required PSP9 REIT Distributions, will not
            be less than $18.64 per share of PSP9 Common Stock, which amount
            represents the market value of PSP9's real estate assets at October
            31, 1995 (based on an independent appraisal) and the estimated net
            asset value of its other assets at March 31, 1996.  Additional pre-
            merger cash distributions would be made to the shareholders of PSP9
            to cause PSP9's estimated net asset value as of the date of the
            Mergers to be substantially equivalent to its estimated net asset
            value as of March 31, 1996.  The PSP9 Common Stock held by PSI will
            be cancelled in the Mergers.  The PSP9 Merger and the PSBP Merger
            are not conditioned on each other.

       2.   To consider and vote upon a related amendment to PSP9's bylaws to
            authorize the PSP9 Merger in the form of Appendix E-1 to the
            accompanying Joint Proxy Statement and Prospectus.

       The Board of Directors has determined that holders of record of PSP9
  Common Stock at the close of business on ____________, 1996 will be entitled
  to receive notice of, and to vote at, the meeting or any adjournment of the
  meeting.

       Please complete, date, sign and promptly mail the enclosed proxy in the
  stamped return envelope included with these materials.

       You are cordially invited to attend the meeting in person.  If you do
  attend and you have already signed and returned the proxy, the powers of the
  proxy holders named in the proxy will be suspended if you desire to vote in
  person.  Therefore, whether or not you presently intend to attend the meeting
  in person, you are urged to complete, date, sign and return the proxy.

                            By Order of the Board of Directors

                                OBREN B. GERICH, Secretary
  Glendale, California
  ______________, 1996
<PAGE>
 
                            PS BUSINESS PARKS, INC.

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                             _______________, 1996


       A special meeting of shareholders of PS Business Parks, Inc., a
  California corporation ("PSBP"), will be held at PSBP's offices at 600 North
  Brand Boulevard, Suite 300, Glendale, California on _______________, 1996, at
  the hour of __________ for the following purposes:

       1.   To consider and vote upon an Agreement and Plan of Reorganization
            among PSBP, Public Storage, Inc. ("PSI") and Public Storage
            Properties IX, Inc. ("PSP9") described in the accompanying Joint
            Proxy Statement and Prospectus pursuant to which (a) PSBP would be
            merged with and into PSI (the "PSBP Merger") and (b) PSP9 would be
            merged with and into PSI (the "PSP9 Merger" and collectively, the
            "Mergers").  Upon the Mergers, each outstanding share of PSBP Common
            Stock Series A ("PSBP Common Stock") (other than shares held by PSI
            or by shareholders of PSBP who have properly exercised dissenters'
            rights under California law ("Dissenting PSBP Shares")) would be
            converted into the right to receive cash, PSI Common Stock or a
            combination of the two, as follows:  (i) with respect to a certain
            number of shares of PSBP Common Stock (not to exceed 20% of the
            outstanding PSBP Common Stock, or 106,832 shares, less any
            Dissenting PSBP Shares), upon a shareholder's election, $19.59 in
            cash, subject to reduction as described below (the "Cash Election")
            or (ii) that number (subject to rounding) of shares of PSI Common
            Stock determined by dividing $19.59, subject to reduction as
            described below, by the average of the per share closing prices on
            the New York Stock Exchange of PSI Common Stock during the 20
            consecutive trading days ending on the fifth trading day prior to
            the special meeting of the shareholders of PSBP.  If a shareholder
            does not make a Cash Election, all of his or her PSBP Common Stock
            would be converted into PSI Common Stock in the Mergers.  The
            consideration paid by PSI in the Mergers will be reduced on a pro
            rata basis by the amount of cash distributions required to be paid
            by PSBP to its shareholders prior to completion of the Merger in
            order to satisfy PSBP's REIT distribution requirements ("Required
            PSBP REIT Distributions").  The consideration received by the
            shareholders of PSBP in the Mergers, however, along with any
            Required PSBP REIT Distributions, will not be less than $19.59 per
            share of PSBP Common Stock, which amount represents the market value
            of PSBP's real estate assets at October 31, 1995 (based on an
            independent appraisal) and the estimated net asset value of its
            other assets at March 31, 1996.  Additional pre-merger cash
            distributions would be made to the shareholders of PSBP to cause
            PSBP's estimated net asset value as of the date of the Mergers to be
            substantially equivalent to its estimated net asset value as of
            March 31, 1996.  The PSBP Common Stock held by PSI will be cancelled
            in the Mergers.  The PSBP Merger and the PSP9 Merger are not
            conditioned on each other.

       2.   To consider and vote upon a related amendment to PSBP's bylaws to
            authorize the PSBP Merger in the form of Appendix E-2 to the
            accompanying Joint Proxy Statement and Prospectus.

       The Board of Directors has determined that holders of record of PSBP
  Common Stock at the close of business on ____________, 1996 will be entitled
  to receive notice of, and to vote at, the meeting or any adjournment of the
  meeting.

       Please complete, date, sign and promptly mail the enclosed proxy in the
  stamped return envelope included with these materials.

       You are cordially invited to attend the meeting in person.  If you do
  attend and you have already signed and returned the proxy, the powers of the
  proxy holders named in the proxy will be suspended if you desire to vote in
  person.  Therefore, whether or not you presently intend to attend the meeting
  in person, you are urged to complete, date, sign and return the proxy.

                            By Order of the Board of Directors

                                OBREN B. GERICH, Secretary
  Glendale, California
  ______________, 1996
<PAGE>
 
                              PUBLIC STORAGE, INC.
                       PUBLIC STORAGE PROPERTIES IX, INC.
                            PS BUSINESS PARKS, INC.

                      JOINT PROXY STATEMENT AND PROSPECTUS
                      SPECIAL MEETINGS OF SHAREHOLDERS OF
         PUBLIC STORAGE PROPERTIES IX, INC. AND PS BUSINESS PARKS, INC.
                             _______________, 1996


       This Joint Proxy Statement and Prospectus is being furnished to holders
  of shares of Common Stock Series A, par value $.01 per share (the "PSP9 Common
  Stock") of Public Storage Properties IX, Inc. ("PSP9") and holders of shares
  of Common Stock Series A, par value $.01 per share (the "PSBP Common Stock")
  of PS Business Parks, Inc. ("PSBP") and relates to meetings of shareholders of
  PSP9 and PSBP called to approve the proposed mergers of each of PSP9 and PSBP
  with and into Public Storage, Inc. ("PSI") (the "PSP9 Merger" and the "PSBP
  Merger," respectively; together, the "Mergers") pursuant to the Agreement and
  Plan of Reorganization attached as Appendix A to this Joint Proxy Statement
  and Prospectus (the "Merger Agreement").  Holders of PSP9 and PSBP Common
  Stock are referred to hereafter as the "PSP9 Shareholders" and the "PSBP
  Shareholders," respectively.  The PSP9 Merger and the PSBP Merger are not
  conditioned on each other.

       PSI and its executive officers have significant relationships with both
  PSP9 and PSBP, and PSI owns approximately 24% and 31% of the PSP9 and PSBP
  Common Stock, respectively.  B. Wayne Hughes ("Hughes"), the chief executive
  officer of PSI, PSP9 and PSBP, owns an additional approximately 4% of the PSP9
  Common Stock.  See "Summary -- Relationships."  PSI and Hughes have informed
  PSP9 and PSBP that they intend to vote their shares for the Mergers.  The
  Boards of Directors of PSP9 and PSBP, based on recommendations of special
  committees composed of independent directors, recommend that PSP9 and PSBP
  Shareholders, respectively, vote for the Mergers.  Each of PSP9 and PSBP has
  imposed as an additional condition to the Mergers that they be approved by a
  majority of the shares of PSP9 and PSBP Common Stock voting at the respective
  shareholder meetings not held by PSI and Hughes.

       The Mergers involve certain factors that should be considered by the PSP9
  and PSBP Shareholders, including the following:

  .    The Mergers have not been negotiated at arms' length, and no unaffiliated
       representatives were appointed to negotiate the terms of the Mergers on
       behalf of either PSP9 or PSBP.

  .    The nature of the investment of PSP9 and PSBP Shareholders who receive
       shares of Common Stock, par value $.10 per share, of PSI (the "PSI Common
       Stock") is being changed from holding an interest in a specified
       portfolio of properties for a finite period to holding an investment in
       an ongoing fully-integrated real estate company, whose portfolio of
       properties is changed from time to time without approval of shareholders,
       and which does not plan to liquidate its assets within a fixed period of
       time.

  .    Based on the current price of the PSI Common Stock ($20 per share) and
       the current regular quarterly distribution rate for PSP9 and PSI, the
       level of distributions to PSP9 Shareholders who receive PSI Common Stock
       in the Mergers would be approximately 32% lower after the Mergers than
       before.



                                                   (Continued on following page)

                               ----------------

       THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
SECURITIES AND EXCHANGE COMMISSION OR ANY STATE COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

       THE ATTORNEY GENERAL OF THE STATE OF NEW YORK HAS NOT PASSED ON, OR 
ENDORSED THE MERITS OF, THIS OFFERING. ANY REPRESENTATION TO THE CONTRARY IS 
UNLAWFUL.

______________, 1996
<PAGE>
 
  .    The properties of PSP9 and PSBP may continue to appreciate in value and
       might be able to be liquidated at a later date for more consideration
       than receivable in the Mergers.

  .    Under California law, PSP9 and PSBP Shareholders will be entitled to
       dissenters' rights of appraisal in connection with the Mergers only if
       demands for payments are filed with respect to 5% or more of the
       outstanding shares of PSP9 or PSBP Common Stock, respectively.

  .    PSI and its affiliates have conflicts of interest in connection with the
       Mergers.

  .    Hughes and members of his family (the "Hughes Family") own approximately
       53% of the PSI Common Stock.

  .    The public PSI Shareholders are further limited in their ability to
       change control of PSI due to restrictions in PSI's organizational
       documents on beneficial ownership.

  .    As a result of a prior business combination, PSI is subject to tax risks,
       including additional risks as to PSI's continued qualification as a real
       estate investment trust ("REIT").

  .    In making real estate investments, PSI, unlike PSP9 and PSBP, has
       incurred, and may continue to incur, debt.

  .    The interest of holders of PSI Common Stock ("PSI Shareholders") can be
       diluted through the issuance of additional securities.  PSI has
       outstanding, and intends to issue additional, securities with priority
       over PSI Common Stock.

  .    The market price of PSI Common Stock may fluctuate following
       establishment of the number of shares to be issued to PSP9 and PSBP
       Shareholders in the Mergers and prior to issuance and could decrease as a
       result of increased selling activity following issuance of shares in the
       Mergers and other factors.

  .    The consideration to be received by PSP9 and PSBP Shareholders in the
       Mergers is based on third party appraisals.  However, appraisals are
       opinions as of the date specified, are subject to certain assumptions and
       may not represent the true worth or realizable value of the properties of
       PSP9 or PSBP.

  .    PSP9 and PSBP Shareholders who receive any cash in connection with the
       Mergers may have a taxable gain.

  See "Risk Factors and Material Considerations" beginning on page ___ of this
  Joint Proxy Statement and Prospectus.

       The PSI Common Stock is traded on the New York Stock Exchange ("NYSE")
  under the symbol "PSA."  On _______________, 1996, the closing price of the
  PSI Common Stock on the NYSE was $_____.  The PSP9 and PSBP Common Stock are
  traded on the American Stock Exchange ("AMEX") under the symbols "PSK" and
  "PSB," respectively.  On _______________, 1996, the closing prices of the PSP9
  and PSBP Common Stock on the AMEX were $_____ and _____, respectively.

       This Joint Proxy Statement and Prospectus is first being mailed on or
  about _______________, 1996 to PSP9 and PSBP Shareholders of record at the
  close of business on _______________, 1996.

     No person is authorized to give any information or to make any
  representations other than those contained herein and, if given or made, such
  information must not be relied upon as having been authorized by PSI, PSP9 or
  PSBP.  This Joint Proxy Statement and Prospectus does not constitute an offer
  to sell any securities other than the registered securities to which it
  relates, or an offer to sell or a solicitation of an offer to buy any of the
  registered securities to which this Joint Proxy Statement and Prospectus
  relates to or by anyone in any jurisdiction in which such offer or
  solicitation is not authorized or in which the person making such offer or
  solicitation is not qualified to do so or to any person to whom it is unlawful
  to make such offer or solicitation.

                                      ii
<PAGE>
 
<TABLE> 
<CAPTION> 

                               TABLE OF CONTENTS
                                                                                                                 Page
                                                                                                                 ----
<S>                                                                                                              <C>  
Available Information.............................................................................................  1
Incorporation of Certain Documents by Reference...................................................................  1
Summary...........................................................................................................  3
     Overview of Mergers..........................................................................................  3
     Meetings and Vote Requirements of Shareholders...............................................................  4
     PSI..........................................................................................................  4
     PSP9.........................................................................................................  5
     PSBP.........................................................................................................  5
     Merger with PSMI.............................................................................................  5
     Risk Factors and Material Considerations.....................................................................  5
     Background and Reasons for the Mergers.......................................................................  7
     Potential Advantages of the Mergers..........................................................................  9
     Rights of Dissenting Shareholders............................................................................  9
     Determination of Payments to be Received by PSP9 Shareholders in Connection with the PSP9 Merger............. 10
     Determination of Payments to be Received by PSBP Shareholders in Connection with the PSBP Merger............. 10
     Federal Income Tax Matters................................................................................... 10
     Recommendations; Opinions of Financial Advisors.............................................................. 11
     Comparison of PSP9 and PSBP Common Stock with PSI Common Stock............................................... 12
     Summary Financial Information................................................................................ 15
     Relationships................................................................................................ 19
Risk Factors and Material Considerations.......................................................................... 22
     No Arms' Length Negotiation or Unaffiliated Representatives.................................................. 22
     Change in Nature of Investment............................................................................... 22
     Uncertainty Regarding Market Price of PSI Common Stock....................................................... 22
     Potential Loss of Future Appreciation........................................................................ 22
     Limitation on Dissenters' Rights of Appraisal................................................................ 22
     Lower Level of Distributions to PSP9 Shareholders............................................................ 22
     Control and Influence by the Hughes Family................................................................... 23
     Ownership Limitations........................................................................................ 23
     Tax Risks.................................................................................................... 23
     Financing Risks.............................................................................................. 24
     Merger Consideration Based on Appraisals Instead of Arms' Length Negotiation................................. 25
     Tax to PSP9 and PSBP Shareholders............................................................................ 25
     Operating Risks.............................................................................................. 25
     Shares Eligible for Future Sale.............................................................................. 27
Conflicts of Interest in the Mergers.............................................................................. 27
The Mergers....................................................................................................... 28
     General...................................................................................................... 28
     Background................................................................................................... 29
     Reasons for the Mergers and Timing........................................................................... 32
     Alternatives to Mergers...................................................................................... 32
     No Solicitation of Other Proposals........................................................................... 35
     Determination of Payments to be Received by PSP9 and PSBP Shareholders in Connection with the Mergers........ 35
     Potential Advantages of the Mergers to PSP9 and PSBP......................................................... 38
     Recommendation to PSP9 and PSBP Shareholders and Fairness Analysis........................................... 38
     Comparison of Consideration to be Received in the Mergers to Other Alternatives.............................. 41
     Real Estate Portfolio Appraisals by Wilson................................................................... 44
     Fairness Opinions from Stanger............................................................................... 47
     The Merger Agreement......................................................................................... 52
</TABLE>

                                      iii
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                                                 Page
                                                                                                                 ----
<S>                                                                                                              <C> 
     Cash Election Procedure.....................................................................................  54
     Consequences to PSP9 and PSBP if the Mergers are Not Completed..............................................  55
     Costs of the Mergers........................................................................................  55
     Accounting Treatment........................................................................................  56
     Regulatory Requirements.....................................................................................  56
     Comparison of PSP9 and PSBP Common Stock with PSI Common Stock..............................................  56
Amendment to Bylaws of PSP9 and PSBP.............................................................................  60
Approval of the Mergers and Bylaw Amendments.....................................................................  61
     General.....................................................................................................  61
     PSP9........................................................................................................  61
     PSBP........................................................................................................  61
     Security Ownership of Certain Beneficial Owners and Management..............................................  62
     Solicitation of Proxies.....................................................................................  68
Description of PSP9's Properties.................................................................................  69
Description of PSBP's Property...................................................................................  73
Description of PSI's Properties..................................................................................  75
Distributions and Price Range of PSI Common Stock................................................................  77
Distributions and Price Range of PSP9 Common Stock...............................................................  78
Distributions and Price Range of PSBP Common Stock...............................................................  79
Description of PSI Capital Stock.................................................................................  80
     Common Stock................................................................................................  80
     Ownership Limitations.......................................................................................  80
     Class B Common Stock........................................................................................  81
     Preferred Stock.............................................................................................  82
     Effects of Issuance of Capital Stock........................................................................  83
Dissenting Shareholders' Rights of Appraisal.....................................................................  84
Certain Federal Income Tax Matters...............................................................................  86
     The Mergers.................................................................................................  86
     Opinion of Counsel..........................................................................................  88
     General Tax Treatment of PSI................................................................................  89
     Consequences of the PSMI Merger on PSI's Qualification as a REIT............................................  91
     Taxation of PSI Shareholders................................................................................  96
     State and Local Taxes.......................................................................................  97
Legal Opinions...................................................................................................  97
Experts..........................................................................................................  98
Independent Auditors.............................................................................................  98
Shareholder Proposals............................................................................................  98
Glossary.........................................................................................................  98
</TABLE> 
 
 
Appendix A       -  Agreement and Plan of Reorganization among PSI, PSP9 and
                    PSBP dated as of December 13, 1995
Appendix B-1     -  Real Estate Appraisal Report by Charles R. Wilson &
                    Associates, Inc. for PSP9
Appendix B-2     -  Real Estate Appraisal Report by Charles R. Wilson &
                    Associates, Inc. for PSBP
Appendix C-1     -  Opinion of Robert A. Stanger & Co., Inc. (PSP9 Merger)
Appendix C-2     -  Opinion of Robert A. Stanger & Co., Inc. (PSBP Merger)
Appendix D       -  Chapter 13 of the California General Corporation Law
                    Concerning Dissenters' Rights
Appendix E-1     -  Proposed Amendment to PSP9's Bylaws
Appendix E-2     -  Proposed Amendment to PSBP's Bylaws
Appendix F       -  Financial Statements of PSP9
Appendix G       -  Financial Statements of PSBP
Appendix H       -  Management's Discussion and Analysis of Financial Condition
                    and Results of Operations of PSP9
Appendix I       -  Management's Discussion and Analysis of Financial Condition
                    and Results of Operations of PSBP

                                      iv
<PAGE>
 
                             AVAILABLE INFORMATION

     Each of PSI, PSP9 and PSBP is subject to the informational requirements of
  the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
  accordance therewith, file reports, proxy statements and other information
  with the Securities and Exchange Commission (the "Commission").  Such material
  can be inspected and copied at the public reference facilities maintained by
  the Commission in Washington, D.C. and at the Regional Offices of the
  Commission at 7 World Trade Center, 13th Floor, New York, New York 10048; and
  Citicorp Center, Suite 1400, 500 West Madison Street, Chicago, Illinois 60661.
  Copies of such material can be obtained at prescribed rates from the Public
  Reference Room of the Commission at 450 Fifth Street, N.W., Washington, D.C.
  20549.  Such material can also be inspected, in the case of PSI, at the NYSE,
  20 Broad Street, New York, New York 10005 and, in the case of PSP9 or PSBP, at
  the AMEX, 86 Trinity Place, New York, New York 10006.

     PSI has filed with the Commission a registration statement on Form S-4
  (herein, together with all amendments and exhibits, referred to as the
  "Registration Statement") under the Securities Act of 1933, as amended (the
  "Securities Act").  This Joint Proxy Statement and Prospectus does not contain
  all the information set forth in the Registration Statement, certain parts of
  which are omitted in accordance with the rules and regulations of the
  Commission.  For further information, reference is hereby made to the
  Registration Statement.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents, filed by PSI with the Commission pursuant to
  Section 13 of the Exchange Act (File No. 1-8389), are incorporated herein by
  reference:  (i) the Annual Report on Form 10-K for the year ended December 31,
  1994, as amended by Form 10-K/As dated April 4, 1995 and April 21, 1995; (ii)
  the Quarterly Reports on Form 10-Q for the quarters ended March 31, 1995, June
  30, 1995 and September 30, 1995; and (iii) the Current Reports on Form 8-K
  dated January 24, 1995, April 25, 1995 and May 22, 1995, the Current Report on
  Form 8-K, as amended by a Form 8-K/A, each dated June 30, 1995, and the
  Current Report on Form 8-K dated November 16, 1995.  The financial statements
  included in the Registration Statement No. 33-58893, filed by the Company with
  the Commission pursuant to the Securities Act, are also incorporated herein by
  reference.

     All documents filed by PSI pursuant to Section 13(a), 13(c), 14 or 15(d) of
  the Exchange Act subsequent to the date of this Joint Proxy Statement and
  Prospectus and prior to the date of the special meetings of the PSP9 and PSBP
  Shareholders shall be deemed to be incorporated by reference herein from the
  date of filing such documents.

     The following documents filed by PSP9 with the Commission pursuant to
  Section 13 of the Exchange Act (File No. 1-10713) are incorporated herein by
  reference:  (i) the Annual Report on Form 10-K for the year ended December 31,
  1994, as amended by Form 10-K/As dated April 12, 1995 and January 29, 1996;
  (ii) the Quarterly Reports on Form 10-Q for the quarters ended March 31, 1995,
  June 30, 1995 and September 30, 1995; and (iii) the Current Report on Form 8-K
  dated December 13, 1995.

     The following documents filed by PSBP with the Commission pursuant to
  Section 13 of the Exchange Act (File No. 1-10842) are incorporated herein by
  reference:  (i) the Annual Report on Form 10-K for the year ended December 31,
  1994, as amended by a Form 10-K/A dated April 12, 1995; (ii) the Quarterly
  Reports on Form 10-Q for the quarters ended March 31, 1995, June 30, 1995 and
  September 30, 1995; and (iii) the Current Report on Form 8-K dated December
  13, 1995.

     Any statement contained herein or in a document incorporated or deemed to
  be incorporated by reference herein shall be deemed to be modified or
  superseded for purposes of this Joint Proxy Statement and Prospectus to the
  extent that a statement contained herein or in any subsequently filed document
  which also is or is deemed to be incorporated by reference herein modifies or
  supersedes such statement.  Any such statement so modified or superseded shall
  not be deemed, except as so modified or superseded, to constitute a part of
  this Joint Proxy Statement and Prospectus.


                                       1
<PAGE>
 
     Also incorporated by reference herein is the Merger Agreement, which is
  attached as Appendix A to this Joint Proxy Statement and Prospectus.

            This Joint Proxy Statement and Prospectus incorporates documents by
  reference which are not presented herein or delivered herewith.  These
  documents (including documents filed subsequent to the date hereof), except
  the exhibits to such documents (unless such exhibits are specifically
  incorporated by reference in such documents), shall be delivered to any person
  to whom this Joint Proxy Statement and Prospectus is delivered, upon written
  or oral request of such person and by first class mail within one business day
  of receipt of such request.  Requests for such copies should be directed to
  Investor Services Department, 600 North Brand Boulevard, Suite 300, Glendale,
  California 91203-1241 or by telephone at (818) 244-8080.  In order to ensure
  timely delivery of the documents, any request should be made by
  _______________.


                                       2
<PAGE>
 
                                    SUMMARY

       The following summary is qualified in its entirety by the detailed
  information appearing elsewhere in this Joint Proxy Statement and Prospectus.
  See "Glossary" for definitions of certain terms used in this Joint Proxy
  Statement and Prospectus.

  Overview of Mergers

       Merger of PSP9 into PSI.  Upon consummation of the PSP9 Merger, PSP9 will
  be merged into PSI, which will be the surviving corporation.  Each share of
  PSP9 Common Stock outstanding immediately prior to the consummation of the
  PSP9 Merger (other than shares held by PSP9 Shareholders who have properly
  exercised dissenter's rights under California law ("Dissenting PSP9 Shares"))
  will be converted into the right to receive cash, PSI Common Stock or a
  combination of the two, as follows:  (i) with respect to a certain number of
  shares of PSP9 Common Stock (not to exceed 20% of the outstanding PSP9 Common
  Stock, or 489,501 shares, less any Dissenting PSP9 Shares), upon a PSP9
  Shareholder's election (the "PSP9 Cash Election"), $18.64 in cash, subject to
  reduction as described below, or (ii) that number of shares of PSI Common
  Stock (subject to rounding) determined by dividing $18.64, subject to
  reduction as described below, by the average of the per share closing prices
  on the NYSE of PSI Common Stock during the 20 consecutive trading days ending
  on the fifth trading day prior to the special meeting of the PSP9
  Shareholders.  If a PSP9 Shareholder does not make a PSP9 Cash Election, all
  of his or her PSP9 Common Stock would be converted into PSI Common Stock.  The
  consideration paid by PSI to PSP9 Shareholders in the PSP9 Merger will be
  reduced on a pro rata basis by the amount of cash distributions required to be
  paid to PSP9 Shareholders by PSP9 prior to completion of the PSP9 Merger
  (estimated at up to $.55 per share) in order to satisfy PSP9's REIT
  distribution requirements ("Required PSP9 REIT Distributions").  The
  consideration received by PSP9 Shareholders in the PSP9 Merger, however, along
  with any Required PSP9 REIT Distributions, will not be less than $18.64 per
  share of PSP9 Common Stock, which amount represents the market value of PSP9's
  real estate assets at October 31, 1995 (based on an independent appraisal) and
  the estimated net asset value of its other assets at March 31, 1996.  PSP9
  Shareholders would receive the Required PSP9 REIT Distributions upon any
  liquidation of PSP9, regardless of the PSP9 Merger.  Additional pre-merger
  cash distributions would be made to the PSP9 Shareholders to cause PSP9's
  estimated net asset value as of the date of the PSP9 Merger to be
  substantially equivalent to its estimated net asset value as of March 31,
  1996.  The PSP9 Common Stock held by PSI will be cancelled in the PSP9 Merger.
  See "The Mergers -- Determination of Payments to be Received by PSP9 and PSBP
  Shareholders in Connection with the Mergers."  For a description of the terms
  of the PSP9 Merger, see "The Mergers -- The Merger Agreement."

       Merger of PSBP into PSI.  Upon consummation of the PSBP Merger, PSBP will
  be merged into PSI, which will be the surviving corporation.  Each share of
  PSBP Common Stock outstanding immediately prior to the consummation of the
  PSBP Merger (other than shares held by PSBP Shareholders who have properly
  exercised dissenter's rights under California law ("Dissenting PSBP Shares"))
  will be converted into the right to receive cash, PSI Common Stock or a
  combination of the two, as follows:  (i) with respect to a certain number of
  shares of PSBP Common Stock (not to exceed 20% of the outstanding PSBP Common
  Stock, or 106,832 shares, less any Dissenting PSBP Shares), upon a PSBP
  Shareholder's election (the "PSBP Cash Election"), $19.59 in cash, subject to
  reduction as described below, or (ii) that number of shares of PSI Common
  Stock (subject to rounding) determined by dividing $19.59, subject to
  reduction as described below, by the average of the per share closing prices
  on the NYSE of PSI Common Stock during the 20 consecutive trading days ending
  on the fifth trading day prior to the special meeting of the PSBP
  Shareholders.  If a PSBP Shareholder does not make a PSBP Cash Election, all
  of his or her PSBP Common Stock would be converted into PSI Common Stock.  The
  consideration paid by PSI to PSBP Shareholders in the PSBP Merger will be
  reduced on a pro rata basis by the amount of cash distributions required to be
  paid to PSBP Shareholders by PSBP prior to completion of the PSBP Merger
  (estimated at up to $.24 per share) in order to satisfy PSBP's REIT
  distribution requirements ("Required PSBP REIT Distributions").  The
  consideration received by PSBP Shareholders in the PSBP Merger, however, along
  with any Required PSBP REIT Distributions, will not be less than $19.59 per
  share of PSBP Common Stock, which amount represents the market value of PSBP's
  real estate assets at October 31, 1995 (based on an independent appraisal) and
  the estimated net asset value of its other assets at March 31, 1996.  PSBP
  Shareholders would receive the Required PSBP REIT Distributions upon any
  liquidation of PSBP, regardless of the PSBP Merger.  Additional pre-merger
  cash distributions would be made to the PSBP Shareholders to cause PSBP's
  estimated net asset value as of the date of the PSBP Merger to be
  substantially equivalent to its


                                       3
<PAGE>
 
  estimated net asset value as of March 31, 1996.  The PSBP Common Stock held by
  PSI will be cancelled in the PSBP Merger.  See "The Mergers -- Determination
  of Payments to be Received by PSBP Shareholders and PSP9 Shareholders in
  Connection with the Mergers."  For a description of the terms of the PSBP
  Merger, see "The Mergers -- The Merger Agreement."

       The Required PSP9 REIT Distributions and the PSBP REIT Distributions are
  sometimes collectively referred to as the "Required REIT Distributions."

       The PSP9 Merger and the PSBP Merger are not conditioned on each other.

       The PSI Common Stock is listed on the NYSE, and the PSP9 and PSBP Common
  Stock are listed on the AMEX.  On December 13, 1995, the last full trading day
  prior to the first announcement of the proposed Mergers, the reported closing
  sales prices per share of PSI, PSP9 and PSBP Common Stock on the NYSE and
  AMEX, respectively, were $19-3/8, $17-1/8 and $17-3/8.  On _______________,
  the last full trading day prior to the date of this Joint Proxy Statement and
  Prospectus, the reported closing sales prices per share of PSI, PSP9 and PSBP
  Common Stock were $_____, $_____ and $_____, respectively.

  Meetings and Vote Requirements of Shareholders
<TABLE>
<CAPTION>
                                                    PSP9                               PSBP
                                               --------------                     --------------
       <S>                             <C>                                <C>

       Meeting Date                    __________, 1996 at __________     __________, 1996 at __________
       Record Date                            _______________                     _______________
       Purpose                         To Approve the PSP9 Merger and     To Approve the PSBP Merger and
                                          Proposed Bylaw Amendment           Proposed Bylaw Amendment
                                         2,447,506 Series A Shares            534,159 Series A Shares
       Shares of Common
        Stock Outstanding
       Vote Required                 Majority of Shares of Outstanding   Majority of Shares of Outstanding
                                            PSP9 Common Stock *                 PSBP Common Stock *
       Percentage Ownership by PSI
        and Hughes                                  28%                                 31%
       Shareholder Lists                   Available upon written             Available upon written
                                                   demand                             demand
</TABLE>
- -----------------------

   *  Each of PSP9 and PSBP has imposed as an additional condition to each of
      the PSP9 and PSBP Mergers, respectively, that each be approved by a
      majority of the shares of PSP9 and PSBP Common Stock voting at the meeting
      of PSP9 and PSBP Shareholders, respectively, not held by PSI and Hughes.

  PSI

     PSI is a fully integrated, self-administered and self-managed REIT,
  organized as a California corporation that acquires, develops, owns and
  operates self-service facilities offering space for personal and business use
  ("mini-warehouses").  PSI is the largest owner and operator of mini-warehouses
  in the United States.  PSI also owns and operates, to a lesser extent,
  business parks containing commercial and industrial rental space.  At November
  16, 1995, PSI had equity interests (through direct ownership, as well as
  general and limited partnership and capital stock interests) in 1,044
  properties located in 37 states, consisting of 1,009 mini-warehouse facilities
  and 35 business parks.  PSI also operates 77 properties in which it has no
  equity interest.

     In a series of mergers among Public Storage Management, Inc. and its
  affiliates (collectively, "PSMI"), culminating in the November 16, 1995 merger
  of PSMI into Storage Equities, Inc. ("SEI") (the "PSMI Merger"), SEI became
  self-administered and self-managed, acquired substantially all of PSMI's
  United States real estate interests and was renamed "Public Storage, Inc."
  See "-- Merger with PSMI."

     PSI's Current Report on Form 8-K dated November 16, 1995 contains pro forma
  financial statements of PSI reflecting the PSMI Merger and certain other
  transactions.  See "Incorporation of Certain Documents by Reference."


                                       4
<PAGE>
 
  PSP9

     PSP9 is a REIT organized as a California corporation that was formed to
  succeed to the business of Public Storage Properties IX, Ltd., a California
  limited partnership (the "PSP9 Partnership"), in a reorganization transaction
  completed on December 31, 1990.  PSMI was the sponsor of the PSP9 Partnership.
  PSP9 owns 15 properties located in six states, including 13 mini-warehouses,
  one business park and one combination mini-warehouse/business park facility.
  All of these facilities are operated under the "Public Storage" name.  See
  "Description of PSP9's Properties."  The PSP9 Common Stock is traded on the
  AMEX under the symbol "PSK."

     PSP9's properties are managed by PSI.  PSP9's operations are under the
  general supervision of its three-member board of directors, consisting of an
  executive officer of PSI and two other directors.  The same persons are the
  directors of PSP9 and PSBP.  See "-- Relationships."

  PSBP

     PSBP is a REIT organized as a California corporation that was formed to
  succeed to the business of PS Business Parks, Ltd., a California limited
  partnership (the "PSBP Partnership"), in a reorganization transaction
  completed on August 5, 1991.  PSMI was the sponsor of the PSBP Partnership.
  PSBP owns a business park located in California, which is operated under the
  "Public Storage" name.  See "Description of PSBP's Property."  The PSBP Common
  Stock is traded on the AMEX under the symbol "PSB."

     PSBP's property is managed by PSI.  PSBP's operations are under the general
  supervision of its three-member board of directors, consisting of an executive
  officer of PSI and two other directors.  The same persons are the directors of
  PSP9 and PSBP.  See "-- Relationships."

     The principal executive offices of PSI, PSP9 and PSBP are located at 600
  North Brand Boulevard, Suite 300, Glendale, California 91203-1241.  Their
  telephone number is (818) 244-8080.

  Merger with PSMI

     In a series of mergers among PSMI and its affiliates, culminating in the
  PSMI Merger, SEI became self-administered and self-managed, acquired
  substantially all of the United States real estate operations of PSMI, and
  changed its name to "Public Storage, Inc."  In addition, the outstanding
  capital stock of PSMI was converted into an aggregate of 30,000,000 shares of
  PSI Common Stock, subject to certain adjustments, and the right to receive
  7,000,000 shares of PSI Class B Common Stock.

     The real estate operations acquired in the PSMI Merger included (1) the
  "Public Storage" name, (2) seven wholly owned properties, (3) all-inclusive
  deeds of trust secured by ten mini-warehouses, (4) general and limited
  partnership interests in 47 limited partnerships owning an aggregate of 286
  mini-warehouses, (5) shares of common stock in 16 REITs owning an aggregate of
  218 mini-warehouses and 14 commercial properties, (6) property management
  contracts, exclusive of facilities owned by PSI, for 563 mini-warehouses and,
  through ownership of a 95% economic interest in a subsidiary, 24 commercial
  properties (522 of which collectively were owned by entities affiliated with
  PSMI) and (7) a 95% economic interest in another subsidiary that currently
  sells locks and boxes in mini-warehouses operated by PSI.

  Risk Factors and Material Considerations

     The Mergers involve certain factors that should be considered by PSP9 and
  PSBP Shareholders, including the following:

     .      No Arms' Length Negotiation or Unaffiliated Representatives.  The
            Mergers have not been negotiated at arms' length, and no
            unaffiliated representatives were appointed to negotiate the terms
            of the Mergers on behalf of either PSP9 or PSBP.  If such persons
            had been engaged, the terms of the Mergers may have been more
            favorable to the shareholders of PSP9 and PSBP.


                                       5
<PAGE>
 
     .      Change from Finite Life to Infinite Life. The nature of the
            investment of PSP9 Shareholders and PSBP Shareholders who receive
            PSI Common Stock is being changed from holding an interest in
            specified properties for a finite period to holding an investment in
            an ongoing integrated real estate company, whose portfolio of
            properties is changed from time to time without approval of
            shareholders, which does not plan to liquidate its assets within a
            fixed period of time and which is engaged in all aspects of the 
            mini-warehouse industry, including property development and
            management. PSP9 and PSBP Shareholders who receive PSI Common Stock
            in the Mergers will be able to liquidate their investment only by
            selling their shares in the market.

     .      Lower Level of Distributions After the Mergers to PSP9 Shareholders.
            Depending on the market price of the PSI Common Stock during the
            period in which the number of shares to be issued in the Mergers is
            established, the level of distributions to PSP9 Shareholders who
            receive PSI Common Stock in the Mergers may be lower after the
            Mergers than before.  Based on a market price of PSI Common Stock of
            $20 and the current regular quarterly distribution rate for PSI
            ($.22 per share) and PSP9 ($.30 per share), PSP9 Shareholders would
            receive approximately $.095 (32%) less in regular quarterly
            distributions per share of PSP9 Common Stock after the Mergers from
            PSI than before the Mergers from PSP9 and approximately $.01 less
            per share in regular quarterly distributions for each $1.03 (5.2%)
            increase in the market price of PSI Common Stock above $20.

     .      Potential Loss of Future Appreciation.  The properties of PSP9 and
            PSBP may continue to appreciate in value and might be able to be
            liquidated at a later date for more consideration than receivable in
            the Mergers.

     .      Limitation on Dissenters' Rights of Appraisal. Under California law,
            PSP9 and PSBP Shareholders will be entitled to dissenters' rights of
            appraisal in connection with the Mergers ("Dissenters' Rights") only
            if demands for payment are filed with respect to 5% or more of the
            outstanding shares of PSP9 and PSBP Common Stock, respectively.

     .      Conflicts of Interest.  PSI and its affiliates, which are affiliated
            with both PSP9 and PSBP, have conflicts of interest in connection
            with the Mergers.

     .      Control and Influence by the Hughes Family.  The Hughes Family owns
            approximately  53% of the PSI Common Stock (approximately 57% upon
            conversion of the Class B Common Stock).

     .      Ownership Limitations.  The public PSI Shareholders are further
            limited in their ability to change control of PSI due to
            restrictions in PSI's Articles of Incorporation on beneficial
            ownership.

     .      Tax Risks -- Additional Risks to Continued REIT Qualification.  As a
            result of the PSMI Merger, PSI is subject to tax risks, including
            risks as to PSI's continued qualification as a REIT resulting from a
            substantial increase in PSI's nonqualifying income.

     .      Financing Risks. In making real estate investments, PSI, unlike PSP9
            and PSBP, has incurred, and may continue to incur, debt. The
            incurrence of debt increases the risk of loss of investment.

     .      Possible Future Dilution.  The interest of PSI Shareholders can be
            diluted through the issuance of additional securities by PSI.  PSI
            has outstanding, and intends to issue additional, securities with
            priority over PSI Common Stock.

     .      Uncertainty Regarding Market Price of PSI Common Stock.  The market
            price of PSI Common Stock may fluctuate following establishment of
            the number of shares to be issued to PSP9 and PSBP Shareholders in
            the Mergers and prior to issuance and could decrease as a result of
            increased selling activity following issuance of shares in the
            Mergers and other factors.


                                       6

<PAGE>
 
     .      Merger Consideration Based on Appraisals Instead of Arms' Length
            Negotiations.  The consideration to be paid to the PSP9 and PSBP
            Shareholders is based on third party appraisals of the properties of
            PSP9 and PSBP.  However, appraisals are opinions as of the date
            specified and are subject to certain assumptions and may not
            represent the true worth or realizable value of the properties of
            PSP9 and PSBP.  There can be no assurance that if the properties of
            PSP9 and PSBP were sold, they would be sold at the appraised values;
            the sales price might be higher or lower.

     .      Tax to PSP9 and PSBP Shareholders Upon Receipt of Cash. PSP9 and
            PSBP Shareholders who receive any cash in connection with the
            Mergers may recognize a taxable gain. In addition, the Required PSP9
            REIT Distributions and the Required PSBP REIT Distributions will be
            taxable to all PSP9 and PSBP Shareholders, respectively, as ordinary
            income.

  Background and Reasons for the Mergers

     The Mergers have been initiated and structured by individuals who are
  executive officers of PSI, PSP9 and PSBP.  Special committees composed of
  independent directors of PSP9 and PSBP (the "PSP9 Special Committee" and "PSBP
  Special Committee," respectively) have reviewed the terms of the Mergers, and
  the Boards of Directors of PSP9 and PSBP, based on recommendations of these
  special committees which the Boards of Directors have adopted, and on the
  opinions of financial advisors in which they concur, believe that the Mergers
  are fair to the public shareholders of PSP9 and PSBP, respectively, and
  recommend that PSP9 and PSBP Shareholders, respectively, vote for the Mergers.

     The PSP9 Special Committee and the PSBP Special Committee are comprised of
  the same two independent directors of PSP9 and PSBP.  The meetings of the PSP9
  and PSBP Special Committees occurred simultaneously and the PSP9 and PSBP
  Special Committees believe that the same general considerations are applicable
  to both the PSP9 Merger and the PSBP Merger, except as noted in this Joint
  Proxy Statement and Prospectus.

     PSP9 and PSBP were organized to succeed to the business of the PSP9
  Partnership and PSBP Partnership, respectively, in reorganization transactions
  completed on December 31, 1990 and August 5, 1991, respectively.  In response
  to changes in the reorganizations requested by the unaffiliated dealer manager
  of both partnerships' original offerings of limited partnership interests,
  PSP9 and PSBP added provisions to their bylaws to the effect that their
  shareholders be presented with proposals, in 1996 and 1999, respectively, to
  sell all or substantially all of their properties, distribute the proceeds
  from such sale and liquidate the corporations.  Later, in settlement of
  litigation arising from the reorganization of PSP9, PSP9's bylaw provision was
  amended to expand the terms of the proposal to include a possible financing of
  its properties.  See "The Mergers -- Background."

     The proposed PSP9 Merger satisfies PSP9's obligation to present a proposal
  to PSP9 Shareholders for the sale or financing of its properties.

     If approved by PSBP Shareholders, the PSBP Merger would obviate PSBP's
  obligation to present a proposal to PSBP Shareholders for the sale of its
  property.  If PSBP Shareholders do not approve the PSBP Merger or if the PSBP
  Merger is not completed because other conditions are not satisfied, PSBP would
  continue to be obligated to present a proposal to PSBP Shareholders in 1999
  for the sale of its property.

     The PSP9 and PSBP Special Committees and the PSP9 and PSBP Boards of
  Directors believe that the proposed Mergers are consistent with their
  respective bylaw provisions.  In the Mergers, PSP9 and PSBP would be disposing
  of their properties to PSI for value, i.e., PSI Common Stock and cash (if Cash
  Elections are made), and the corporate existence of PSP9 and PSBP would cease.
  Furthermore, the consideration to be received in the Mergers is based on the
  appraised value of the assets of PSP9 and PSBP, and PSP9 and PSBP Shareholders
  have the right, with respect to up to 20% of the outstanding PSP9 and PSBP
  Common Stock (less any Dissenting Shares), to receive cash in the Mergers.
  The applicable bylaw provisions do not (i) define the terms "sale,"
  "liquidation" or "financing," (ii) specify what types of transactions would
  satisfy the requirement imposed by these bylaw provisions or (iii) preclude
  sales of the properties of PSP9 or PSBP to PSI.


                                       7
<PAGE>
 
     PSI, which was organized in 1980, has from time to time taken actions to
  increase its asset and capital base and increase diversification.  Between
  September 1994 and June 1995, PSI merged with three REITs which, like PSP9 and
  PSBP, had been organized by PSMI to succeed to the business of predecessor
  partnerships.

     In November 1995, the PSP9 and PSBP Boards of Directors appointed the PSP9
  and PSBP Special Committees to consider and make recommendations to their
  respective Boards of Directors and shareholders regarding possible mergers
  with PSI.  On December 13, 1995, the PSP9 and PSBP Boards of Directors based
  on recommendations of their respective special committees, which were adopted
  by the respective Boards of Directors, approved the respective Merger and
  determined to recommend that their respective shareholders vote for the
  respective Merger.

     The PSP9 and PSBP Boards of Directors and the PSP9 and PSBP Special
  Committees believe that the respective consideration being offered in the
  Mergers compares favorably with the trading price of the PSP9 and PSBP Common
  Stock immediately prior to the first announcement of the Mergers and during
  other periods, a range of estimated going concern values per share of PSP9 and
  PSBP Common Stock, an estimated liquidation value per share of PSP9 and PSBP
  Common Stock and the book value per share of PSP9 and PSBP Common Stock.  The
  PSP9 and PSBP Boards of Directors and the PSP9 and PSBP Special Committees
  recognize that this comparison is subject to significant assumptions,
  qualifications and limitations.  See "The Mergers -- Comparison of
  Consideration to be Received in the Mergers to Other Alternatives."

     Prior to concluding that the Mergers should be proposed to PSP9 and PSBP
  Shareholders, the PSP9 and PSBP Boards of Directors and the PSP9 and PSBP
  Special Committees considered several alternatives to the Mergers, including
  liquidation of PSP9 and PSBP, continued operation of PSP9 and PSBP and an
  amendment to the organizational documents of PSP9 and PSBP.  In order to
  determine whether the Mergers or one of the alternatives would be more
  advantageous to PSP9 and PSBP Shareholders, the PSP9 and PSBP Boards of
  Directors and the PSP9 and PSBP Special Committees compared the potential
  benefits and detriments of the Mergers with the potential benefits and
  detriments of other alternatives.  Based upon a comparison of the potential
  benefits and detriments of the Mergers with their alternatives, the PSP9 and
  PSBP Boards of Directors and the PSP9 and PSBP Special Committees have
  concluded that the Mergers are more attractive to PSP9 and PSBP Shareholders,
  respectively, than any of the alternatives considered.  The PSP9 and PSBP
  Boards of Directors did not solicit any other proposals for the acquisition of
  PSP9 or PSBP or their properties.  See "The Mergers -- No Solicitation of
  Other Proposals."

     In comparing the Mergers to other alternatives, the PSP9 and PSBP Boards of
  Directors and the PSP9 and PSBP Special Committees noted the following:

     Liquidation.  The PSP9 Board of Directors and the PSP9 Special Committee do
  not believe this is an opportune time to sell PSP9's properties because they
  may continue to appreciate in value.  The PSP9 Merger provides PSP9
  Shareholders with the opportunity either to convert their investment in PSP9
  into an investment in PSI, which like PSP9 primarily owns mini-warehouses, on
  a tax-free basis or to receive cash based on the appraised value of PSP9's
  properties as to a portion of their investment.  The PSBP Board of Directors
  and the PSBP Special Committee also do not believe this is an opportune time
  to sell PSBP's business park because it may appreciate in value.  The PSBP
  Merger provides PSBP Shareholders with the opportunity either to convert their
  investment in PSBP into an investment in PSI, which also owns, to a lesser
  extent, business parks, on a tax-free basis or to receive cash based on the
  appraised value of PSBP's property as to a portion of their investment.
  However, if PSP9 or PSBP liquidated its assets through asset sales to
  unaffiliated third parties, PSP9 and PSBP Shareholders would not need to rely
  upon real estate portfolio appraisals to estimate the fair market value of the
  properties of their respective corporation's properties.

     Continued Operation.  Nothing requires the liquidation or merger of either
  PSP9 or PSBP at this time.  Both are operating profitably.  Continued
  operation should provide PSP9 and PSBP Shareholders with continued
  distributions of net operating cash flow and participation in future
  appreciation of their respective corporation's properties, as well as avoiding
  many of the risks described under "Risk Factors and Material Considerations."
  However, continued operation would fail to secure the potential benefits of
  the Mergers described under "The Mergers -- Potential Advantages of the
  Mergers."


                                       8
<PAGE>
 
     Amendment of Bylaws of PSP9 and PSBP.  An amendment to the bylaws of PSP9
  and PSBP to remove the restrictions on investment of cash flow and issuance of
  securities by PSP9 and PSBP would permit them to take advantage of investment
  opportunities and to grow as new investments are made.  However, the PSP9 and
  PSBP Boards of Directors and the PSP9 and PSBP Special Committees believe that
  PSI's larger capital base and greater liquidity and diversification better
  enable PSI to take advantage of investment opportunities and to raise
  investment capital.

  Potential Advantages of the Mergers

     The principal potential benefits to PSP9 and PSBP Shareholders who receive
  PSI Common Stock are:

     .      Acquisition of Additional Properties. Following the Mergers, PSP9
            and PSBP Shareholders will be investors in an entity with a larger
            asset base and market capitalization than PSP9 and PSBP. PSI has
            grown and is expected to continue to grow, as new investments are
            made.

     .      Increased Liquidity. PSP9 has 2,447,506 shares of PSP9 Common Stock
            listed on the AMEX with an average daily trading volume during the
            12 months ended September 30, 1995 of 1,300 shares, and PSBP has
            534,159 shares of PSBP Common Stock listed on the AMEX with an
            average daily trading volume during the same period of 400 shares.
            In comparison, PSI has approximately 72 million shares of Common
            Stock listed on the NYSE (35.6 million of which are freely
            tradeable) with an average daily trading volume during the same
            period of 60,200 shares (48,400 shares if November 1994 and May
            1995, during which PSI was engaged in public offerings of Common
            Stock, are excluded). Given PSI's greater market capitalization and
            trading volume than either PSP9 or PSBP, PSP9 and PSBP Shareholders
            who receive PSI Common Stock in exchange for their common stock are
            likely to enjoy a more active trading market and increased liquidity
            for their shares.

     .      Tax-Free Treatment if Only PSI Common Stock is Received. Each of the
            Mergers is intended to qualify as a tax-free reorganization.
            Assuming such qualification, no taxable gain or loss will be
            recognized in connection with the Mergers by PSP9 and PSBP
            Shareholders who exchange their PSP9 and PSBP Common Stock solely
            for PSI Common Stock. However, the Required PSP9 REIT Distributions
            and PSBP REIT Distributions will be taxable to all shareholders of
            the respective distributing corporation as ordinary income. Hughes,
            who has little tax basis in his PSP9 Common Stock, has advised PSI
            and PSP9 that he intends to exchange his PSP9 Common Stock solely
            for PSI Common Stock. See "Certain Federal Income Tax Matters -- The
            Mergers."

  Rights of Dissenting Shareholders

     Pursuant to Chapter 13 of the Corporations Code of the State of California
  (the "California Code"), PSP9 and PSBP Shareholders will be entitled to obtain
  appraisal of the fair value of their respective shares ("Dissenters' Rights")
  if demands for payment are filed with respect to 5% or more of the respective
  outstanding shares of PSP9 or PSBP Common Stock.

     A dissenting shareholder who wishes to require PSP9 or PSBP to purchase his
  or her respective shares of common stock must:

          (1) vote against the respective Merger any or all of the shares of
       common stock entitled to be voted (shares of common stock not voted are
       not considered to be voted against a Merger and will not be counted
       toward the 5% minimum for Dissenters' Rights to exist); provided that if
       a PSP9 or PSBP Shareholder votes part of the shares entitled to be voted
       in favor of the respective Merger, and fails to specify the number of
       shares voted, it is conclusively presumed under California law that such
       shareholder's approving vote is with respect to all shares entitled to be
       voted;

          (2) make written demand upon the respective corporation or its
       transfer agent, which is received not later than the date of the
       respective meeting of shareholders, setting forth the number


                                       9
<PAGE>
 
       of shares of common stock demanded to be purchased by the respective
       corporation and a statement as to claimed fair market value of such
       shares at December 13, 1995; and

          (3) submit for endorsement, within 30 days after the date on which the
       notice of approval of the Mergers by the shareholders of the respective
       corporation is mailed to such shareholders, to the respective corporation
       or its transfer agent the certificates representing any shares in regard
       to which demand for purchase is being made, or to be exchanged for
       certificates of appropriate denominations so endorsed, with a statement
       that the shares are dissenting shares.

       The provisions of Chapter 13 are technical in nature and complex.  PSP9
  and PSBP Shareholders desiring to exercise appraisal rights and to obtain
  appraisal of the fair value of their shares should consult counsel, since the
  failure to comply strictly with the provisions of Chapter 13 may result in a
  waiver or forfeiture of their appraisal rights.  A copy of Chapter 13 of the
  California Code is attached hereto as Appendix D.  See "Dissenting
  Shareholders' Rights of Appraisal."

  Determination of Payments to be Received by PSP9 Shareholders in Connection
  with the PSP9 Merger

       In connection with the PSP9 Merger, PSP9 Shareholders will receive the
  net asset value or $18.64 per share of PSP9 Common Stock.  PSP9's net asset
  value is the sum of (a) the appraised value of PSP9's real estate assets
  determined by Wilson, as of October 31, 1995, plus (b) the estimated book
  values of PSP9's non-real estate assets as of March 31, 1996, less (c) PSP9's
  estimated liabilities as of March 31, 1996.  Pre-merger cash distributions
  would be made to PSP9 Shareholders to cause PSP9's estimated net asset value
  as of the date of the PSP9 Merger to be substantially equivalent to its
  estimated net asset value as of March 31, 1996.  The consideration paid to
  PSP9 Shareholders by PSI in the PSP9 Merger will be reduced on a pro rata
  basis by the amount of the Required PSP9 REIT Distributions paid to PSP9
  Shareholders by PSP9 prior to completion of the PSP9 Merger.  See "The Mergers
  --Determination of Payments to be Received by PSP9 Shareholders in Connection
  with the Mergers."  However, the consideration received by PSP9 Shareholders
  in the PSP9 Merger along with the Required PSP9 REIT Distributions (which will
  be paid in cash) will not be less than $18.64.

  Determination of Payments to be Received by PSBP Shareholders in Connection
  with the PSBP Merger

       In connection with the PSBP Merger, PSBP Shareholders will receive the
  net asset value or $19.59 per share of PSBP Common Stock.  PSBP's net asset
  value is the sum of (a) the appraised value of PSBP's real estate asset
  determined by Wilson, as of October 31, 1995, plus (b) the estimated book
  values of PSBP's non-real estate assets as of March 31, 1996, less (c) PSBP's
  estimated liabilities as of March 31, 1996.  Pre-merger cash distributions
  would be made to PSBP Shareholders to cause PSBP's estimated net asset value
  as of the date of the PSBP Merger to be substantially equivalent to its
  estimated net asset value as of March 31, 1996.  The consideration paid to
  PSBP Shareholders by PSI in the PSBP Merger will be reduced on a pro rata
  basis by the amount of the Required PSBP REIT Distributions paid to PSBP
  Shareholders by PSBP prior to completion of the PSBP Merger.  See "The Mergers
  --Determination of Payments to be Received by PSBP Shareholders in Connection
  with the Mergers."  However, the consideration received by PSBP Shareholders
  in the PSBP Merger along with the Required PSBP REIT Distributions (which will
  be paid in cash) will not be less than $19.59.

  Federal Income Tax Matters

       Each of the Mergers is intended to qualify as a tax-free reorganization
  under Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as amended
  (the "Code"), in which case generally (A) (i) no gain or loss would be
  recognized by PSP9 Shareholders who receive solely PSI Common Stock in
  exchange for their PSP9 Common Stock; (ii) gain or loss would be recognized by
  PSP9 Shareholders who receive solely cash in exchange for their PSP9 Common
  Stock in an amount equal to the difference between their adjusted basis in
  their PSP9 Common Stock and the amount of cash received in exchange therefor;
  and (iii) gain or loss would be recognized by PSP9 Shareholders who receive a
  combination of PSI Common Stock and cash in exchange for their PSP9 Common
  Stock in an amount equal to the difference between their adjusted basis in
  their PSP9 Common Stock and the sum of (a) the fair market value of the PSI
  Common Stock received and (b) the amount of cash received, but only to the
  extent of the amount of cash received and (B) (i) no gain or loss would be
  recognized by PSBP Shareholders who receive solely PSI Common Stock


                                      10
<PAGE>
 
  in exchange for their PSBP Common Stock; (ii) gain or loss would be recognized
  by PSBP Shareholders who receive solely cash in exchange for their PSBP Common
  Stock in an amount equal to the difference between their adjusted basis in
  their PSBP Common Stock and the amount of cash received in exchange therefor;
  and (iii) gain or loss would be recognized by PSBP Shareholders who receive a
  combination of PSI Common Stock and cash in exchange for their PSBP Common
  Stock in an amount equal to the difference between their adjusted basis in
  their PSBP Common Stock and the sum of (a) the fair market value of the PSI
  Common Stock received and (b) the amount of cash received, but only to the
  extent of the amount of cash received.  The Required PSP9 REIT Distributions
  and Required PSBP REIT Distributions would not be treated as cash paid in
  exchange for the PSP9 Common Stock and PSBP Common Stock, respectively, but
  rather as a dividend taxable to all recipients as ordinary income.  See
  "Certain Federal Income Tax Matters -- The Mergers."

  Recommendations; Opinions of Financial Advisors

       Recommendation of PSP9 and PSBP Boards of Directors to PSP9 and PSBP
  Shareholders.  Based upon an analysis of the Mergers, the PSP9 and PSBP
  Special Committees and the PSP9 and PSBP Boards of Directors have concluded
  that (i) the terms of the Mergers are fair to the public shareholders of the
  respective corporation, (ii) after comparing the potential benefits and
  detriments of the Mergers with those of several alternatives, the Mergers are
  more advantageous to the public shareholders of their respective corporation
  than such alternatives and (iii) PSP9 and PSBP Shareholders should vote for
  the respective Merger.

       The PSP9 and PSBP Special Committees and the PSP9 and PSBP Boards of
  Directors based their conclusion on the following factors:  (i) the bylaws of
  PSP9 and PSBP require proposals for the sale of properties of PSP9 and PSBP in
  1996 and 1999, respectively; (ii) the Mergers provide PSP9 and PSBP
  Shareholders with a choice of converting their investment into an investment
  in PSI or, with respect to up to 20% of the outstanding PSP9 and PSBP Common
  Stock (less any Dissenting Shares), receiving cash for their investment; (iii)
  the properties of PSP9 and PSBP have been appraised by an independent
  appraiser and PSP9 and PSBP each has received a fairness opinion from Robert
  A. Stanger & Co. Inc. ("Stanger") relating to the consideration to be received
  in the respective Merger; (iv) the Mergers are required to be approved by PSP9
  and PSBP Shareholders and, subject to certain limitations, these shareholders
  will have the right to exercise Dissenters' Rights; and (v) based on certain
  significant assumptions, qualifications and limitations, the consideration
  being offered in the Mergers compares favorably with other alternatives.

       Absence of Arms' Length Negotiation.  The terms of the Mergers are not
  the result of arms' length negotiation.  The PSP9 and PSBP Boards of Directors
  do not believe that the absence of independent representatives to negotiate
  the Mergers undermines the fairness of the Mergers because the terms of the
  Mergers have been reviewed and approved by the PSP9 and PSBP Special
  Committees, comprised of independent directors of PSP9 and PSBP.

       Fairness Opinions from Stanger.  Stanger was engaged by PSP9 and PSBP
  through the PSP9 and PSBP Special Committees to deliver a written summary of
  its determination as to the fairness of the respective consideration to be
  received in each Merger, from a financial point of view, to the respective
  public shareholders of PSP9 and PSBP.  The full text of the opinions is set
  forth in Appendix C-1 and C-2 to this Joint Proxy Statement and Prospectus.
  Subject to the assumptions, qualifications and limitations contained therein,
  the fairness opinions conclude that, as of the date of the fairness opinions,
  the consideration to be received in each Merger is fair to the public
  shareholders of each of PSP9 and PSBP, from a financial point of view.  In
  arriving at its opinions, Stanger considered, among other things, the
  independent appraised value of the portfolio of properties of each of PSP9 and
  PSBP, the estimated liquidation value of PSP9 and PSBP prepared by PSP9 and
  PSBP, respectively, based upon liquidation of the portfolio on a property-by-
  property basis, financial analyses and projections prepared by PSP9 and PSBP
  concerning the going-concern value from continuing operation of each of PSP9
  and PSBP as a stand-alone entity, and a comparison of the historical market
  prices of the common stock of each of PSP9 and PSBP with the consideration
  offered in the Mergers.  Stanger was not requested to, and therefore did not:
  (i) select the method of determining the consideration offered in the Mergers;
  (ii) make any recommendation to the PSP9 or PSBP Shareholders with respect to
  whether to approve or reject the Mergers or whether to select the cash or
  common stock option in the Mergers; or (iii) express any opinion as to the
  business decision to effect the Mergers, alternatives to the Mergers, or tax
  factors resulting from the PSMI Merger or relating to PSI's continued
  qualification as a REIT.  Stanger's opinions are based on business, economic,
  real estate


                                      11
<PAGE>
 
  and securities markets, and other conditions as of the date of its analysis.
  See "The Mergers -- Fairness Opinion from Stanger."

  Comparison of PSP9 and PSBP Common Stock with PSI Common Stock

          The information below summarizes certain principal differences between
  the PSP9 and PSBP Common Stock and the PSI Common Stock and the effect of the
  Mergers on PSP9 and PSBP Shareholders who receive PSI Common Stock in the
  Mergers (set forth in italics below each caption).  For an expanded discussion
  of these and other comparisons and effects, see "The Mergers -- Comparison of
  PSP9 and PSBP Common Stock with PSI Common Stock."


                      Investment Objectives and Policies

                                 PSP9 and PSBP

  To provide (i) quarterly cash distributions from operations and (ii) long-term
  capital gains through appreciation in the value of properties.

                                      PSI

  To maximize funds from operations ("FFO") allocable to holders of PSI Common
  Stock and to increase shareholder value through internal growth and
  acquisitions. FFO is a supplemental performance measure for equity REITs used
  by industry analysts. FFO does not take into consideration principal payments
  on debt, capital improvements, distributions and other obligations of PSI.
  Accordingly, FFO is not a substitute for PSI's net cash provided by operating
  activities or net income as a measure of PSI's liquidity or operating
  performance. An increase in PSI's FFO will not necessarily correspond with an
  increase in distributions to holders of PSI Common Stock. See "--Liquidity,
  Marketability and Distributions."

          PSP9 and PSBP Shareholders who receive PSI Common Stock in the Mergers
  will be changing their investment from "finite-life" to "infinite life," and
  they will be able to realize the value of their investment only by selling the
  PSI Common Stock. The interest of PSI Shareholders can be diluted through the
  issuance of additional securities, including securities that would have
  priority over PSI Common Stock as to cash flow, distributions and liquidation
  proceeds. PSI has an effective registration statement for preferred stock,
  common stock and warrants and intends to issue additional securities under
  this registration statement. There is no assurance that any such securities
  will be issued. See "Risk Factors and Material Considerations --Uncertainty
  Regarding Market Price of PSI Common Stock" and "-- Financing Risks --Dilution
  and Subordination."

                               Borrowing Policies

                                 PSP9 and PSBP

  Not permitted to incur borrowings in acquisition of properties.

                                      PSI

  Permitted to borrow in furtherance of its investment objectives, subject to
  certain limitations.
  
          PSI, unlike PSP9 and PSBP, incurs debt in the ordinary course of
  business and reinvests proceeds from borrowings. The incurrence of debt
  increases the risk of loss of investment.

                                      12
<PAGE>
 
                         Transactions with Affiliates

                                 PSP9 and PSBP


  Restricted from entering into a variety of business transactions with its
  affiliates without shareholder approval. See "Amendment to Bylaws of PSP9 and
  PSBP."

                                      PSI

  Restricted from acquiring properties from its affiliates or from selling
  properties to them unless the transaction is approved by a majority of PSI's
  independent directors and is fair to PSI based on an independent appraisal.

          It is easier for PSI to enter into transactions with its affiliates
  than in the case of PSP9 or PSBP because shareholder approval is not required.

                      Properties (As of November 16, 1995)

                                 PSP9 and PSBP



  PSP9 - 15 wholly owned properties in six states.
  PSBP - one wholly owned property in California.

                                      PSI

  Direct and indirect equity interests in 1,044 properties in 37 states.

          Because PSI owns substantially more property interests in more states
  than either PSP9 or PSBP, PSI's results of operations are less affected by the
  operations of a single property than are those of PSP9 or PSBP, and it would
  be more difficult to liquidate PSI than either PSP9 or PSBP within a
  reasonable period of time.

                   Liquidity, Marketability and Distributions

                                 PSP9 and PSBP

  The common stock of PSP9 and PSBP is traded on the AMEX. During the 12 months
  ended September 30, 1995, the average daily trading volume of PSP9 and PSBP
  Common Stock was 1,300 shares and 400 shares, respectively. PSP9 and PSBP may
  not issue securities having priority over their common stock.

                                      PSI

  PSI Common Stock is traded on the NYSE. During the 12 months ended September
  30, 1995, the average daily trading volume of PSI Common Stock was 60,200
  shares (48,400 shares if November 1994 and May 1995, during which PSI was
  engaged in public offerings of Common Stock, are excluded). PSI has issued,
  and may in the future issue, securities that have priority over PSI Common
  Stock as to cash flow, distributions and liquidation proceeds.

          Distributions may be declared by the Boards of Directors of PSP9, PSBP
  and PSI out of any funds legally available for that purpose. PSP9, PSBP and
  PSI are required to distribute at least 95% of their ordinary REIT taxable
  income in order to maintain their qualification as REITs. PSI distributes less
  than its cash available for distribution (recently distributing amounts
  approximately equal to its taxable income), permitting it to retain funds for
  additional investment and debt reduction.

          A PSP9 or PSBP Shareholder who receives PSI Common Stock in the
  Mergers should have an investment for which the market is broader and more
  active than the market for PSP9 or PSBP Common Stock. Distributions on PSI
  Common Stock are subject, however, to priority of preferred stock.

        Additional Issuances of Securities and Anti-Takeover Provisions

                                 PSP9 and PSBP

  PSP9 and PSBP Shareholders must approve all additional issuances of capital
  stock.

                                      PSI

  Subject to the rules of the NYSE and applicable provisions of California law,
  PSI has issued and intends to continue to issue authorized common and
  preferred stock without shareholder approval.
                                          
                                      13
<PAGE>
 
          Given the ownership level of PSI Common Stock by the Hughes Family and
  PSI's greater flexibility to issue capital stock, including senior securities
  with special voting rights and priority over PSI Common Stock, PSI should be
  in a better position to deter attempts to obtain control in transactions not
  approved by its Board of Directors than either PSP9 or PSBP, and PSI
  Shareholders could be less likely to benefit from a takeover not approved by
  its Board of Directors than would PSP9 or PSBP Shareholders in a similar
  circumstance.


                                      14
<PAGE>
 
  Summary Financial Information

          The financial data in this section should be read in conjunction with
  the financial statements and pro forma financial statements incorporated
  herein by reference.

                                PSI - Historical
<TABLE>
<CAPTION>
                                                                                                         Nine Months Ended
                                                Years Ended December 31,                                    September 30,
                              ----------------------------------------------------------------    -------------------------------
                                1990        1991        1992        1993           1994              1994             1995
                                ----        ----        ----        ----  --------------------       ----    --------------------
                                                                          Historical  Proforma(9)            Historical  Proforma(9)
                                                                          ----------  --------               ----------  --------
                                           ($ In thousands, except per share data)
<S>                         <C>          <C>         <C>         <C>        <C>         <C>       <C>       <C>          <C>
Operating Data:                          
                                         
Total revenues               $ 93,570    $ 93,528    $ 97,448    $114,680   $147,196    $248,411  $106,089  $  148,048   $  197,032
Depreciation and                                                                                                       
 amortization                  21,099      21,773      22,405      24,998     28,274      51,022    20,532      27,887       39,809
Interest expense               10,920      10,621       9,834       6,079      6,893      16,350     4,455       5,249       11,797
Minority interest in income     9,154       6,693       6,895       7,291      9,481       6,918     7,795       5,449        5,304
Net income                     11,994      11,954      15,123      28,036     42,118      96,621    29,884      49,221       79,980
                                                                                                                       
Other Data:                                                                                                            
                                                                                                                       
Net cash provided by                                                                                                   
 operating activities        $ 41,101    $ 40,419    $ 44,025    $ 59,477   $ 79,180    $154,991  $ 59,478  $   82,599   $  124,451
Ratio of earnings to                                                                                                   
 combined fixed charges 
 and preferred stock                                                                                                            
 dividends(1)                   2.79x       2.71x       2.89x       2.40x      2.22x       2.41x     2.31x       2.07x        2.59x
                                                                                                                       
Balance Sheet Data                                                                                                     
 (at end of period):                                                                                                   
                                                                                                                       
Total cash and cash                                                                                                              
 equivalents                 $  9,225    $  6,439    $  8,384    $ 10,532   $ 20,151    $      -  $ 16,888  $   14,697   $    5,494
Total assets                  572,247     548,220     537,724     666,133    820,309           -   799,188   1,190,061    1,829,157
Total debt                    105,285     104,244      69,478      84,076     77,235           -    46,376     110,689      189,170
Shareholders' equity          175,585     188,113     253,669     376,066    587,786           -   553,251     922,941    1,479,081
                                                                                                                       
Per Share of Common Stock:                                                                                 
                                                                                                                       
Net income                   $   1.04    $    .81    $    .90    $    .98   $   1.05    $    .91  $    .79  $      .76   $      .77
Distributions(2)                  .65(3)      .82         .84         .84        .85         .85       .63         .66          .66
Book value (at end of                                                                                                  
 period)                        15.16       12.75       12.02       11.93      12.66           -     12.64       13.29        14.11
Weighted average shares of                                                                                            
  Common Stock (in thousands)  11,583      14,751      15,981      17,558     24,077      71,845    22,951      35,847       72,144
</TABLE>


                                      15
<PAGE>
 
                               PSP9 - Historical
<TABLE>
<CAPTION>
                                                                                        Nine Months Ended
                                                     Years Ended December 31,              September 30,
                                           ---------------------------------------------  ----------------
                                           1990(4)    1991      1992     1993     1994     1994     1995
                                           --------  -------  --------  -------  -------  -------  -------
                                                       ($ In thousands, except per share data)
<S>                                        <C>       <C>      <C>       <C>      <C>      <C>      <C>
 Operating Data:
 
 Total revenues                            $ 6,958   $ 6,968  $ 6,737   $ 6,830  $ 7,068  $ 5,309  $ 5,385
 Depreciation and amortization                 974       996      984       951      938      704      716
 Reorganization costs(5)                       371       299     (117)        -        -        -        -
 Interest expense                                -         -        -         -       95       74       71
 Gain on sale of real estate                     -         -    1,729       237        -        -        -
 Net income                                  3,124     2,977    4,936     3,545    3,388    2,568    2,622
 
 Other Data:
 
 Net cash provided by operating
  activities                               $ 4,285   $ 4,047  $ 4,100   $ 4,091  $ 4,289  $ 3,184  $ 2,999
 Ratio of earnings to fixed charges            N/A       N/A      N/A       N/A    36.7x    35.7x    37.9x
 
 Balance Sheet Data (at end of period):
 
 Total cash and cash equivalents           $ 1,299   $ 1,575  $ 1,881   $   473  $ 1,032  $   822  $    19
 Total assets                               32,716    32,169   29,641    27,498   27,300   27,267   26,062
 Total debt                                      -         -        -         -    1,050      800      100
 Shareholders' equity                       31,847    30,268   27,940    25,938   24,738   25,003   24,489
 
 Per Share of Common Stock:
 
 Net income:
   Primary                                 $  1.30   $  1.24  $  2.24   $  1.69  $  1.70  $  1.28  $  1.05
   Fully-diluted                              1.08      1.04     1.76      1.33     1.33     1.01     1.05
 
 Distributions(6):
   Series A                                $  1.60   $  1.65  $  2.51   $  1.56  $  1.56  $  1.17  $   .99
   Series B(7)(10)                            1.60      1.65     1.56      1.44     1.56     1.17        -
   Series C                                      -         -        -         -        -        -        -
 Book value (at end of period)(8)          $ 11.00   $ 10.53  $ 10.27   $ 10.00  $  9.85  $  9.80  $  9.84
 
 Weighted average shares of
  common stock (in thousands):
   Primary                                   2,172     2,151    2,075     1,935    1,821    1,828    2,488
   Fully-diluted                             2,896     2,875    2,799     2,658    2,544    2,552    2,488
 
</TABLE>


                                      16
<PAGE>
 
                               PSBP - Historical
<TABLE>
<CAPTION>
                                                                                       Nine Months Ended
                                                     Years Ended December 31,             September 30,
                                           --------------------------------------------  ----------------
                                           1990(4)    1991     1992     1993     1994     1994     1995
                                           --------  -------  -------  -------  -------  -------  -------
                                                      ($ In thousands, except per share data)
<S>                                        <C>       <C>      <C>      <C>      <C>      <C>      <C>
 Operating Data:
 
 Total revenues                            $ 1,703    $1,754   $1,736   $1,632   $1,727   $1,294   $1,324
 Depreciation and amortization                 382       467      372      356      363      276      265
 Reorganization costs(5)                        54       116        -        -        -        -        -
 Interest expense                                -         -        -        -        3        -       59
 Net income                                    683       571      725      605      581      459      434
 
 Other Data:
 
 Net cash provided by operating
  activities                               $ 1,044    $  716   $1,316   $  934   $  975   $  782   $  723
 Ratio of earnings to fixed charges            N/A       N/A      N/A      N/A   194.7x      N/A     8.4x
 
 Balance Sheet Data (at end of period):
 
 Total cash and cash equivalents           $   574    $  219   $  466   $  408   $  101   $  255   $  243
 Total assets                                8,358     7,939    7,741    7,444    6,823    7,051    6,784
 Total debt                                      -         -        -        -      575        -    1,000
 Shareholders' equity                        7,929     7,412    7,175    6,911    5,712    6,483    5,186
 
 Per Share of Common Stock:
 
 Net income:
   Primary                                 $  1.25    $ 1.03   $ 1.40   $ 1.16   $ 1.16   $  .91   $  .93
   Fully-diluted                              1.04       .88     1.14      .96      .96      .75      .80
 
 Distributions(12):
   Series A                                $  1.60    $ 1.60   $ 1.60   $ 1.60   $ 1.60   $ 1.20   $ 1.20
   Series B(13)                               1.60      1.60     1.60     1.60     1.60     1.20      .80
   Series C                                      -         -        -        -        -        -        -
 Book value (at end of period)(8)          $ 12.09    $11.62   $11.41   $11.06   $10.24   $10.57   $ 9.71
 
 Weighted average shares of
  common stock (in thousands):
   Primary                                     492       488      470      464      440      449      436
   Fully-diluted                               656       652      634      628      604      613      546
</TABLE>
- ----------

  (1)   For purposes of these computations, earnings consist of net income
        before minority interest in income, loss on early extinguishment of debt
        and gain on disposition of real estate plus fixed charges (other than
        preferred stock dividends) and less the portion of minority interest in
        income for those consolidated minority interests which had no fixed
        charges during the period. Fixed charges and preferred stock dividends
        consist of interest expense and the dividend requirements of PSI
        preferred stock.

  (2)   For federal income tax purposes (a) distributions for 1990 consist of
        $.50 of ordinary income and $.15 return of capital and (b) distributions
        for 1991, 1992, 1993, 1994 and the nine months ended September 30, 1995
        are from ordinary income. The distributions for generally accepted
        accounting principles ("GAAP"), include a return of capital for 1991 of
        $.01. All distributions for 1990, 1992, 1993, 1994 and the nine months
        ended September 30, 1995 were from investment income. The difference
        between the components of distributions for GAAP purposes and tax
        purposes results primarily from the methods used to compute depreciation
        expense.

  (3)   When PSI was organized in 1980, it intended to distribute all net cash
        flow from operations less reserves. PSI's distributions per share of
        Common Stock were reduced from $.35 per quarter to $.05 for the first
        quarter of


                                      17
<PAGE>
 
        1990 and $.20 for each subsequent quarter of 1990. Distributions had
        been reduced because distributions had exceeded cash available for
        distributions and because capital expenditures had been required for
        maintenance of properties. Commencing in 1990 PSI changed its
        distribution policy and distributes less than its cash available for
        distributions, permitting it to retain funds for additional investment
        and debt reduction.

  (4)   PSP9 was reorganized from the PSP9 Partnership on December 31, 1990 (the
        "Reorganization"). The Reorganization has been reflected by
        retroactively restating the information for 1990; the only impact
        relates to the classification of certain equity accounts.

  (5)   Reorganization costs, which consist primarily of legal fees, accounting
        fees, transfer taxes, registration and solicitation fees, represent the
        costs incurred in the Reorganization.

  (6)   For federal income tax purposes, distributions on Series A Shares for
        (a) 1991 consist of $1.50 of ordinary income and $.10 of return of
        capital, (b) distributions for 1992 consisted of $1.31 of ordinary
        income, $.95 of capital gain and $.20 of return of capital, (c)
        distributions for 1993 consisted of $1.44 of ordinary income and $.12 of
        capital gain, and (d) distributions for 1994 and the nine months ended
        September 30, 1995 are from ordinary income. Distributions through 1992
        exceeded net income computed in accordance with GAAP. The distributions
        for GAAP purposes include a return of capital for 1990 of $.28, for 1991
        of $.37 and for 1992 of $.24. The distributions for GAAP purposes in
        1992 and 1993 include $.95 and $.12, respectively, of capital gain. All
        distributions for 1994 were from investment income. Distributions for
        each year include distributions declared during the fourth quarter and
        paid in January. The difference between the components of distributions
        for GAAP purposes and tax purposes results primarily from the methods
        used to compute depreciation expense.

  (7)   In the Reorganization, PSP9 issued shares of Common Stock Series A,
        Series B and Series C. In February 1995 the Series B and Series C shares
        converted to Series A shares on a share for share basis in accordance
        with PSP9's articles of incorporation. Therefore, commencing with the
        distribution with respect to the first quarter of 1995, no distributions
        have been paid on the Series B shares.

  (8)   Book value per share computed based on the number of Series A, Series B
        and Series C shares outstanding at period end.

  (9)   Historical information of PSI for 1994 and the nine months ended
        September 30, 1995 have been restated to reflect the pro forma impact of
        the PSMI Merger which occurred November 16, 1995. The pro forma results
        presented are as if the PSMI Merger occurred on the first day of the
        period presented.

  (10)  The Series B shares (prior to conversion into Series A shares) were not
        entitled to participate in distributions attributable to sale or
        refinancing of PSP9's properties or the liquidation of PSP9. As a
        result, the Series B shares did not participate in the capital gain
        distributions in 1993 and 1992.

  (11)  PSBP was reorganized from the PSBP Partnership on August 5, 1991 (the
        "Reorganization"). The Reorganization has been reflected by
        retroactively restating the information for 1990; the only impact
        relates to the classification of certain equity accounts.

  (12)  For federal income tax purposes, distributions on PSBP's Series A Shares
        for (a) 1990 and 1991 consisted of $1.37 of ordinary income and $.23 of
        return of capital, (b) distributions for 1993 consisted of $1.38 of
        ordinary income and $.22 of return of capital, and (c) distributions for
        1992, 1994 and the nine months ended September 30, 1995 are from
        ordinary income. Distributions for GAAP purposes include a return of
        capital for 1990 of $.32, 1991 of $.44, 1992 of $.18, 1993 of $.41, 1994
        of $.38 and the nine months ended September 30, 1995 of $.22.
        Distributions for each year include distributions declared during the
        fourth quarter and paid in January. The difference between the
        components of distributions for GAAP purposes and tax purposes results
        primarily from the methods used to compute depreciation expense.

  (13)  In the Reorganization, PSBP issued shares of Common Stock Series A,
        Series B and Series C. In August 1995 the Series B and Series C shares
        converted to Series A shares on a share for share basis in accordance
        with


                                      18
<PAGE>
 
        PSBP's articles of incorporation. Therefore, commencing with the
        distribution with respect to the third quarter of 1995, no distributions
        have been paid on the Series B shares.

  Relationships

        The following charts show the relationships among PSP9, PSBP, PSI and
  certain of their affiliates both before and after the Mergers. The properties
  of PSP9 and PSBP are managed by PSI, the principal shareholder of PSP9 and
  PSBP, under the supervision of their Boards of Directors. PSI is controlled by
  B. Wayne Hughes, the chairman of the board and chief executive officer of
  PSP9, PSBP and PSI.


                                      19
<PAGE>
 
Before the Mergers




                             [CHART OMITTED HERE]



                            Description of Graphic

     Chart illustrating the affiliated relationships among PSP9, PSBP, PSI and 
certain affiliates before the Mergers: BWH owns 53% of PSI and Public 
Shareholders own 47% of PSI; BWH owns 4% of PSP9, PSI (which is the Property 
Manager of PSP9) owns 24% of PSP9 and Public Shareholders own 72% of PSP9; PSI 
(which is the Property Manager of PSBP) owns 31% of PSBP and Public 
Shareholders own 69% of PSBP.


                        (See notes on succeeding page.)


                                      20
<PAGE>
 

After the Mergers
(Assuming Maximum Cash Elections)

                             [CHART OMITTED HERE] 

                            Description of Graphic

     Chart illustrating the affiliated relationships between PSI and certain 
affiliates after the Mergers: BWH owns 52% of PSI and Public Shareholders own 
48% of PSI.
 
BWH  =  B. Wayne Hughes. Mr. Hughes is the chairman of the board and chief
        executive officer of PSP9, PSBP and PSI
PSP9 =  Public Storage Properties IX, Inc.
PSBP =  PS Business Parks, Inc.
PSI  =  Public Storage, Inc. Mr. Hughes and members of his family own 53% of the
        PSI Common Stock (57% upon the conversion of PSI's Class B Common
        Stock). PSI manages the commercial properties of PSP9 and PSBP through
        Public Storage Commercial Properties Group, Inc. ("PSCP") which is
        economically owned 95% by PSI and 5% by the Hughes Family.

                                      21
<PAGE>
 
                    RISK FACTORS AND MATERIAL CONSIDERATIONS

       The Mergers involve the following factors which should be considered by
  PSP9 and PSBP Shareholders, including the following:

  No Arms' Length Negotiation or Unaffiliated Representatives

       The Mergers have not been negotiated at arm's length, and PSI and its
  affiliates have significant relationships with both PSP9 and PSBP.  No
  unaffiliated representatives were appointed to negotiate the terms of the
  Mergers on behalf of either PSP9 or PSBP.  If such persons had been engaged,
  the terms of the Mergers might have been more favorable to the shareholders of
  either PSP9 or PSBP.

  Change in Nature of Investment

       PSP9 and PSBP are REITs organized to hold interests in properties for a
  finite period.  The bylaws of PSP9 and PSBP require that their shareholders be
  presented with liquidation proposals in 1996 and 1999, respectively, although
  they could continue in existence for a longer period.  In contrast, PSI, which
  is engaged in all aspects of the mini-warehouse industry, including property
  development and management, intends to operate for an indefinite period.  As a
  consequence of this difference, following the Mergers, PSP9 and PSBP
  Shareholders receiving PSI Common Stock will be able to liquidate their
  investment only by selling their shares on the NYSE or in private
  transactions.  PSBP Shareholders who receive PSI Common Stock will be changing
  the nature of their investment from ownership in a company that owns a
  business park to ownership in a company that owns primarily mini-warehouses.

  Uncertainty Regarding Market Price of PSI Common Stock

       The number of shares of PSI Common Stock that would be received by PSP9
  and PSBP Shareholders is based on the average market price of PSI Common Stock
  for the 20 consecutive trading days ending on the fifth trading day prior to
  the respective shareholders' meetings.  Since the market price of PSI Common
  Stock fluctuates, the market value of PSI Common Stock that holders of PSP9
  and PSBP Common Stock may receive in the Mergers may decrease following
  establishment of the number of shares.  In addition, because of increased
  selling activity following issuance of shares in the Mergers and other
  factors, the market value of PSI Common Stock that PSP9 and PSBP Shareholders
  may receive in the Mergers may decrease following the Mergers.

  Potential Loss of Future Appreciation

       The properties of PSP9 and PSBP may continue to appreciate in value and
  might be able to be liquidated at a later date for more consideration than
  receivable in the Mergers.

  Limitation on Dissenters' Rights of Appraisal

       Under California law, PSP9 and PSBP Shareholders will be entitled to
  Dissenters' Rights in connection with the Mergers only if demands for payment
  are filed with respect to 5% or more of the outstanding shares of PSP9 and
  PSBP Common Stock, respectively.  See "Dissenting Shareholders Rights of
  Appraisal."

  Lower Level of Distributions to PSP9 Shareholders

       Depending on the market price of the PSI Common Stock during the period
  in which the number of shares to be issued in the Mergers is established, the
  level of distributions to PSP9 Shareholders who receive PSI Common Stock in
  the Mergers may be lower after the Mergers than before.  Based on a market
  price of PSI Common Stock of $20 and the current regular quarterly
  distribution rate for PSI ($.22 per share) and PSP9 ($.30 per share), PSP9
  Shareholders would receive approximately $.095 (32%) less in regular quarterly
  distributions per share of PSP9 Common Stock after the Mergers from PSI than
  before the Mergers from PSP9 and approximately $.01 less per share in regular
  quarterly distributions for each $1.03 (5.2%) increase in the market price of
  PSI Common Stock above $20.


                                      22
<PAGE>
 
  Control and Influence by the Hughes Family

       The Hughes Family owns approximately 53% of the outstanding shares of PSI
  Common Stock (approximately 57% upon conversion of PSI's Class B Common
  Stock).  Consequently, the Hughes Family controls matters submitted to a vote
  of PSI Shareholders, including the election of directors, amendment of PSI's
  Articles of Incorporation, dissolution and the approval of other extraordinary
  transactions.

  Ownership Limitations

       Public shareholders are further limited in their ability to change
  control of PSI due to restrictions in the PSI Articles of Incorporation and
  Bylaws on beneficial ownership.  Unless such limitations are waived by PSI's
  board of directors (the "Board of Directors"), no shareholder may own more
  than (A) 2.0% of the outstanding shares of all common stock of PSI or (B) 9.9%
  of the outstanding shares of each class or series of shares of preferred stock
  of PSI.  The PSI Articles of Incorporation and Bylaws provide, however, that
  no person shall be deemed to exceed the ownership limit solely by reason of
  the beneficial ownership of shares of any class of stock to the extent that
  such shares of stock were beneficially owned by such person at the time of the
  PSMI Merger, which includes the PSI Common Stock owned by the Hughes Family at
  the time of the PSMI Merger.  The principal purpose of the foregoing
  limitations is to assist in preventing, to the extent practicable, a
  concentration of ownership that might jeopardize the ability of PSI to obtain
  the favorable tax benefits afforded a qualified REIT.  An incidental
  consequence of such provisions is to make a change of control significantly
  more difficult (if not impossible) even if it would be favorable to the
  interests of the public shareholders.  Such provisions will prevent future
  takeover attempts which the PSI Board of Directors has not approved even if a
  majority of the public shareholders of PSI deem it to be in their best
  interests or in which the public shareholders may receive a premium for their
  shares over the then market value.  See "Description of PSI Capital Stock --
  Ownership Limitations."

  Tax Risks

       Increased Risk of Violation of Gross Income Requirements.  As a result of
  the PSMI Merger, PSI performs property management services for properties in
  which it has no or only a partial interest.  Some or all of the gross income
  received from these services will not be treated as income qualifying for
  certain REIT gross income tests applicable to PSI ("Nonqualifying Income").
  In 1995 and future years, if PSI's Nonqualifying Income were to exceed 5% of
  its total gross income, PSI's REIT status may terminate for that year and
  future years unless PSI meets certain "reasonable cause" standards.  Even if
  PSI meets such standards, however, it would be subject to a 100% excise tax on
  any excess Nonqualifying Income.

       Increased Risk of Violation of Ownership Requirements.  For PSI to
  qualify as a REIT under the Code, no more than 50% in value of its outstanding
  stock may be owned, directly or constructively under the applicable
  attribution rules of the Code, by five or fewer individuals (as defined in the
  Code to include certain entities) during the last half of a taxable year.
  Following the PSMI Merger, the value of the outstanding capital stock of PSI
  held by the Hughes Family was estimated at approximately 45%.  Accordingly, no
  four individuals other than the Hughes Family could own directly or
  constructively, in the aggregate, more than 5% of the value of outstanding
  capital stock of PSI.  In order to assist PSI in meeting these ownership
  restrictions, the PSI Articles of Incorporation and Bylaws contain the
  ownership limitations described under "Description of PSI Capital Stock --
  Ownership Limitations."  However, even with these ownership limitations, there
  still could be a violation of the ownership restrictions if four individuals
  unrelated to the Hughes Family were to own the maximum amount of capital stock
  permitted under the PSI Articles of Incorporation and Bylaws.  Therefore, to
  further assist PSI in meeting the ownership restrictions, the Hughes Family
  has entered into an agreement with PSI restricting the Hughes Family's
  acquisition of additional shares of capital stock of PSI and providing that
  if, at any time, for any reason, more than 50% in value of its outstanding
  capital stock otherwise would be considered owned by five or fewer
  individuals, a number of shares of PSI Common Stock owned by Hughes necessary
  to prevent such violation will automatically and irrevocably be transferred to
  a designated charitable beneficiary.  The provisions in the PSI Articles of
  Incorporation and Bylaws and the agreement with Hughes are modeled after
  certain arrangements that the Internal Revenue Service (the "IRS") has ruled
  in private letter rulings will preclude a REIT from being considered to
  violate the ownership restrictions so long as such arrangements are
  enforceable as a matter of state law and the REIT seeks to enforce them as and
  when necessary.


                                      23
<PAGE>
 
  There can be no assurance, however, that the IRS might not seek to take a
  different position with respect to PSI (a private letter ruling is legally
  binding only with respect to the taxpayer to whom it was issued) or contend
  that PSI failed to enforce these various arrangements and, hence, there can be
  no absolute assurance that these arrangements will necessarily preserve PSI's
  REIT status.  No private letter ruling has been sought by PSI from the IRS on
  the effect of these arrangements.

       Elimination of Any Accumulated Earnings and Profits.  The accumulated
  earnings and profits, if any, of PSMI carried over to PSI in the PSMI Merger.
  To retain its REIT status, PSI distributed all of these acquired earnings and
  profits on or before December 31, 1995.  Accordingly, PSI was required to
  accurately determine the amount of acquired earnings and profits and to
  increase its distributions to its shareholders in 1995 if necessary to
  eliminate these earnings and profits.  As a condition to the PSMI Merger, PSI
  obtained from PSMI a study of the earnings and profits that showed that PSMI
  had no earnings and profits at the time of the PSMI Merger.  The determination
  of earnings and profits depends upon a number of factual matters related to
  the activities and operation of PSMI and its predecessors in years prior to
  the PSMI Merger.  Accordingly, no assurances can be given that the IRS will
  not challenge such conclusion.  If the IRS were subsequently to determine that
  such earnings and profits existed at the time of the PSMI Merger and PSI
  failed to distribute such earnings and profits by December 31, 1995, PSI may
  lose its REIT qualification for 1995 and, perhaps, for subsequent years unless
  certain relief provisions apply.  See "Certain Federal Income Tax
  Considerations -- Consequences of the Merger on PSI's Qualification as a REIT
  -- Elimination of any Accumulated Earnings and Profits Attributable to Non-
  REIT Years."

       Consequences of Failure to Quality as a REIT.  For any taxable year that
  PSI fails to qualify as a REIT and the relief provisions do not apply, PSI
  would be taxed at the regular corporate rates on all of its taxable income,
  whether or not it makes any distributions to its shareholders.  Those taxes
  would reduce the amount of cash available to PSI for distribution to its
  shareholders or for reinvestment.  As a result, failure of PSI to qualify
  during any taxable year as a REIT could have a material adverse effect upon
  PSI and its shareholders.  Furthermore, unless certain relief provisions
  apply, PSI would not be eligible to elect REIT status again until the fifth
  taxable year that begins after the first year for which PSI fails to qualify.

       Corporate Level Tax on Sale of Certain Built-in Gain Assets.  PSI will be
  subject to a corporate level tax if it disposes of any of the assets acquired
  in the PSMI Merger at any time during the 10-year period beginning at the time
  of the PSMI Merger (the "Restriction Period").  This tax would be imposed at
  the top regular corporate rate (currently 35%) in effect at the time of the
  disposition on the excess of (i) the lesser of (a) the fair market value at
  the time of the PSMI Merger of the assets disposed of and (b) the selling
  price of such assets over (ii) PSI's adjusted basis at the time of the PSMI
  Merger in such assets (such excess being referred to as the "Built-in Gain").
  PSI currently does not intend to dispose of any of the assets acquired in the
  PSMI Merger during the Restriction Period, but there can be no assurance that
  one or more such dispositions will not occur.

  Financing Risks

       Dilution and Subordination.  The interest of PSI Shareholders, including
  persons who receive shares in the Mergers, can be diluted through the issuance
  of additional securities.

       Since October 1992, PSI has issued shares of preferred stock in public
  offerings and intends to issue additional such shares.  These issuances could
  involve certain risks to holders of shares of PSI Common Stock, including
  shares of PSI Common Stock to be issued in the Mergers.  In the event of a
  liquidation of PSI, the holders of the preferred stock will be entitled to
  receive, before any distribution of assets to holders of PSI Common Stock,
  liquidating distributions (an aggregate of approximately $710 million in
  respect of preferred stock issued to date), plus any accrued and unpaid
  dividends.  Holders of preferred stock are entitled to receive, when declared
  by the PSI Board of Directors, cash dividends (an aggregate of approximately
  $64 million per year in respect of preferred stock issued to date), in
  preference to holders of PSI Common Stock.  As a REIT, PSI must distribute at
  least 95% of its taxable income to its shareholders (which include not only
  holders of PSI Common Stock but also holders of preferred stock).  Failure to
  pay full dividends on the preferred stock could jeopardize PSI's qualification
  as a REIT.  See "Certain Federal Income Tax Matters."


                                      24
<PAGE>
 
       Certain of these securities have been issued under a currently effective
  registration statement of PSI for preferred stock, common stock and warrants.
  PSI intends to issue additional securities under this registration statement.
  There is no assurance that any such securities will be issued.

       Risk of Leverage.  In making real estate investments, PSI, unlike PSP9
  and PSBP, has incurred, and may continue to incur, debt, subject to certain
  limitations.  The incurrence of debt increases the risk of loss of the
  investment.  At September 30, 1995 (pro forma the PSMI Merger), PSI's debt as
  a percentage of its total capitalization was approximately 13%.

  Merger Consideration Based on Appraisals Instead of Arms' Length Negotiation

       The consideration to be received by PSP9 and PSBP Shareholders is based
  on third party appraisals of the properties valuing the properties of PSP9 and
  PSBP at $45,400,000 and $11,500,000, respectively.  However, appraisals are
  opinions as of the date specified and are subject to certain assumptions and
  may not represent the true worth or realizable value of these properties.
  There can be no assurance that if these properties were sold, they would be
  sold at the appraisal values; the sales price might be higher or lower.

  Tax to PSP9 and PSBP Shareholders

       PSP9.  PSP9 Shareholders who receive cash in connection with the PSP9
  Merger in exchange for their PSP9 Common Stock will recognize taxable gain to
  the extent that the amount of cash received exceeds the adjusted basis of such
  shareholder in his or her PSP9 Common Stock.  A PSP9 Shareholder receiving a
  combination of cash and PSI Common Stock in the PSP9 Merger in exchange for
  his or her PSP9 Common Stock will recognize taxable gain equal to the lesser
  of the amount of the cash received or the difference between his or her
  adjusted basis in his or her PSP9 Common Stock and the sum of (1) the fair
  market value of the PSI Common Stock received and (2) the amount of cash
  received, but only to the extent of the cash received.

       PSBP.  PSBP Shareholders who receive cash in connection with the PSBP
  Merger in exchange for their PSBP Common Stock will recognize taxable gain to
  the extent that the amount of cash received exceeds the adjusted basis of such
  shareholder in his or her PSBP Common Stock.  A PSBP Shareholder receiving a
  combination of cash and PSI Common Stock in the PSBP Merger in exchange for
  his or her PSBP Common Stock will recognize taxable gain equal to the lesser
  of the amount of the cash received or the difference between his or her
  adjusted basis in his or her PSBP Common Stock and the sum of (1) the fair
  market value of the PSI Common Stock received and (2) the amount of cash
  received, but only to the extent of the cash received.

       The Required PSP9 REIT Distributions and Required PSBP REIT Distributions
  will be taxable to all PSP9 and PSBP Shareholders, respectively, as ordinary
  income.

  Operating Risks

       General Risks of Real Estate Ownership.  Like PSP9 and PSBP, PSI is
  subject to the risks generally incident to the ownership of real estate-
  related assets, including lack of demand for rental spaces or units in a
  locale, changes in general economic or local conditions, changes in supply of
  or demand for similar or competing facilities in an area, the impact of
  environmental protection laws, changes in interest rates and availability of
  permanent mortgage funds which may render the sale or financing of a property
  difficult or unattractive and changes in tax, real estate and zoning laws.

       Significant Competition Among Mini-Warehouses.  Like PSP9, most of PSI's
  properties are mini-warehouses.  Competition in the market areas in which many
  of their properties are located is significant and has affected the occupancy
  levels, rental rates and operating expenses of certain of their properties.

       Risk of Environmental Liabilities.  Under various federal, state and
  local laws, regulations and ordinances (collectively, "Environmental Laws"),
  an owner or operator of real estate interests may be liable for the costs of
  cleaning up, as well as certain damages resulting from, past or present
  spills, disposals or other releases of hazardous


                                      25
<PAGE>
 
  or toxic substances or wastes on, in or from a property.  Certain
  Environmental Laws impose such liability without regard to whether the owner
  knew of, or was responsible for, the presence of hazardous or toxic substances
  or wastes at or from a property.  An owner or operator of real estate or real
  estate interests also may be liable under certain Environmental Laws that
  govern activities or operations at a property having adverse environmental
  effects, such as discharges to air and water as well as handling and disposal
  practices for solid and hazardous or toxic wastes.  In some cases, liability
  may not be limited to the value of the property.  The presence of such
  substances or wastes, or the failure to properly remediate any resulting
  contamination, also may adversely affect the owner's or operator's ability to
  sell, lease or operate its property or to borrow using its property as
  collateral.

       PSI has recently conducted preliminary environmental assessments of most
  of its properties (and intends to conduct such assessments in connection with
  property acquisitions) to evaluate the environmental condition of, and
  potential environmental liabilities associated with, such properties.  Such
  assessments generally consist of an investigation of environmental conditions
  at the subject property (not including soil or groundwater sampling or
  analysis), as well as a review of available information regarding the site and
  publicly available data regarding conditions at other sites in the vicinity.
  In connection with these recent property assessments, PSI's operations and
  recent property acquisitions, PSI has become aware that prior operations or
  activities at certain facilities or from nearby locations have or may have
  resulted in contamination to the soil and/or groundwater at such facilities.
  In this regard, certain such facilities are or may be the subject of federal
  or state environmental investigations or remedial actions.  PSI has obtained,
  with respect to recent acquisitions and intends to obtain with respect to
  pending or future acquisitions, appropriate purchase price adjustments or
  indemnifications that it believes are sufficient to cover any such potential
  liabilities.  Although there can be no assurance, based on the recent
  preliminary environmental assessments, PSI believes it has funds available to
  cover any liability from environmental contamination or potential
  contamination and PSI is not aware of any environmental contamination of its
  facilities material to its overall business or financial condition.

       Tenant Reinsurance.  A corporation owned by the Hughes Family continues
  to reinsure policies insuring against losses to goods stored by tenants in the
  mini-warehouses operated by PSI.  PSI believes that the availability of
  insurance reduces its potential liability to tenants for losses to their goods
  from theft or destruction.  This corporation will continue to receive the
  premiums and bear the risks associated with the insurance.  PSI has a right of
  first refusal to acquire the stock or assets of this corporation if the Hughes
  Family or the corporation agree to sell them, but PSI has no interest in its
  operations and no right to acquire the stock or assets of the corporation in
  the absence of a decision to sell.  If the reinsurance business were owned
  directly by PSI, the insurance premiums would be Nonqualifying Income to PSI.
  PSI would be precluded from exercising its right of first refusal with respect
  to the stock of the reinsurance corporation if such exercise would cause PSI
  to violate any of the requirements for qualification as a REIT under the Code.

       Canadian Operations.  The Hughes Family continues to own and operate
  mini-warehouses in Canada.  PSI has a right of first refusal to acquire the
  stock or assets of the corporation engaged in these operations if the Hughes
  Family or the corporation agree to sell them, but PSI has no interest in its
  operations and no right to acquire the stock or assets in the absence of a
  decision to sell.

       PSCP.  Prior to the PSMI Merger, Public Storage Commercial Properties
  Group, Inc. ("PSCP"), a subsidiary of PSMI, managed commercial properties for
  PSI and others.  Because certain of the revenues generated by PSCP would be
  Nonqualifying Income to PSI, prior to the PSMI Merger, the common stock of
  PSCP held by PSMI was converted into nonvoting preferred stock (representing
  95% of the equity) and the voting common stock of PSCP (representing 5% of the
  equity) was issued to the Hughes Family.  While PSI acquired the preferred
  stock of PSCP in the PSMI Merger, the Hughes Family is able to continue to
  control the operations of PSCP by reason of its ownership of PSCP's voting
  stock.

       Merchandise Company.  Prior to the PSMI Merger, PSMI sold locks, boxes
  and tape at certain mini-warehouse locations.  Because the revenues received
  from the sale of these items would be Nonqualifying Income to PSI, immediately
  prior to the PSMI Merger, PSMI transferred this lock and box business to a
  separate corporation (the "Lock/Box Company").  In the PSMI Merger, PSI
  acquired the nonvoting preferred stock of the Lock/Box Company (representing
  95% of the equity).  The voting common stock of the Lock/Box Company
  (representing 5% of the equity)

                                       26
<PAGE>
 
  was issued to the Hughes Family, who will be able to control the operations of
  the Lock/Box Company by reason of their ownership of its voting stock.

       Liabilities with Respect to Acquired General Partner Interests.  Upon
  succeeding to substantially all of the properties and operations of PSMI in
  the PSMI Merger, PSI may be subject to certain liabilities and associated
  costs in its capacity as general partner of former PSMI limited partnerships
  arising out of facts and circumstances in existence prior to such merger, and
  PSI will also have general partner liability for post-merger activities of
  these partnerships, as it does for other partnerships for which it is a
  general partner.  Subject to certain limitations, Hughes has agreed to
  indemnify PSI for pre-merger activities and place in escrow shares of PSI
  Class B Common Stock received in the PSMI Merger to support such
  indemnification.

  Shares Eligible for Future Sale

       Future sales of substantial amounts of PSI Common Stock in the public
  market could adversely affect prevailing market prices.  Upon completion of
  certain adjustments relating to the PSMI Merger, it is estimated that there
  will be approximately 72 million shares of PSI Common Stock and seven million
  shares of Class B Common Stock outstanding.  Of these shares, approximately
  35.6 million shares of PSI Common Stock outstanding prior to the PSMI Merger
  are tradeable without restriction (except as to affiliates of PSI) or further
  registration under the Securities Act of 1933, as amended (the "Securities
  Act").  The remaining approximately 36.4 million shares of PSI Common Stock
  and seven million shares of Class B Common Stock were issued in such merger
  without registration under the Securities Act in reliance on an exemption from
  registration and are "restricted securities" within the meaning of Rule 144
  adopted under the Act (the "Restricted Shares").  The beneficial owners of
  15.5 million of the Restricted Shares (including all of the Class B Common
  Stock) have agreed not to offer, sell or otherwise dispose (except for gifts
  and pledges) of any of their shares for a period of three years following the
  PSMI Merger, in the case of the PSI Common Stock, or for seven years following
  the PSMI Merger, in the case of the Class B Common Stock.  Upon expiration of
  such periods, each will be entitled to sell his or her shares in the public
  market subject to Rule 144, which contains certain public information, volume,
  holding period and manner of sale requirements.  The remaining approximately
  27.9 million Restricted Shares will be available for sale in the public market
  pursuant to Rule 144, subject to the foregoing requirements that include, as
  the Rule is currently in effect, a two-year holding period.  Sales of
  substantial amounts of such PSI Common Stock in the public market could
  adversely affect the market price of the PSI Common Stock.

                      CONFLICTS OF INTEREST IN THE MERGERS

       PSI and its affiliates have conflicts of interest in connection with the
  Mergers.  PSI has a significant ownership interest in both PSP9 and PSBP,
  owning approximately 24% of the PSP9 Common Stock and 31% of the PSBP Common
  Stock.  Hughes owns an additional approximately 4% of the PSP9 Common Stock.
  See "Summary--Relationships."

       The Mergers have been initiated and structured by individuals who are
  executive officers of PSI, PSP9 and PSBP, and the Mergers have not been
  negotiated at arms' length.  No independent representatives have been retained
  to negotiate the terms of the Mergers on behalf of either PSP9 or PSBP.  If
  such representatives had been retained, the terms of the Mergers might have
  been more favorable to the shareholders of PSP9 and PSBP.  Although
  independent representatives were not retained by PSP9 or PSBP, they have
  created special committees comprised of independent directors, which have
  engaged an independent financial advisor, to evaluate the Mergers.  The
  special committees have reviewed the terms of the Mergers and recommend that
  the shareholders of PSP9 and PSBP, respectively, vote for the Mergers.  Based
  upon the use of an independent appraisal firm to determine the value of
  consideration to be paid to PSP9 and PSBP Shareholders, the fairness opinions
  and the participation of the special committees of PSP9 and PSBP, the Boards
  of Directors of PSP9 and PSBP considered that the engagement of independent
  representatives to negotiate the terms of the Mergers was not necessary or
  cost effective.

                                       27
<PAGE>
 
                                  THE MERGERS

  General

       PSP9.  As a result of the PSP9 Merger, the separate existence of PSP9
  would cease.  Upon consummation of the PSP9 Merger, each outstanding share of
  PSP9 Common Stock (other than PSP9 Dissenting Shares) would be converted into
  the right to receive cash, PSI Common Stock or a combination of the two, as
  follows:  (i) with respect to a certain number of shares of PSP9 Common Stock
  (not to exceed 20% of the outstanding PSP9 Common Stock, or 489,501 shares,
  less any PSP9 Dissenting Shares), upon a Cash Election, $18.64 in cash,
  subject to reduction as described below, or (ii) that number of shares of PSI
  Common Stock (subject to rounding) determined by dividing $18.64, subject to
  reduction as described below, by the average of the per share closing prices
  on the NYSE of PSI Common Stock during the 20 consecutive trading days ending
  on the fifth trading day prior to the special meeting of the PSP9
  Shareholders.  If a PSP9 Shareholder does not make a Cash Election, all of his
  or her PSP9 Common Stock would be converted into PSI Common Stock in the PSP9
  Merger.  The consideration paid to PSP9 Shareholders by PSI in the PSP9 Merger
  will be reduced on a pro rata basis by the Required PSP9 REIT Distributions
  (estimated at up to $.55 per share).  The consideration received by PSP9
  Shareholders in the PSP9 Merger, however, along with any Required PSP9 REIT
  Distributions, will not be less than $18.64 per share of PSP9 Common Stock,
  which amount represents the market value of PSP9's real estate assets at
  October 31, 1995 (based on an independent appraisal) and the estimated net
  asset value of its other assets at March 31, 1996.  PSP9 Shareholders would
  receive the Required PSP9 REIT Distributions upon any liquidation of PSP9,
  regardless of the PSP9 Merger.  Additional pre-merger cash distributions would
  be made to the PSP9 Shareholders to cause PSP9's estimated net asset value as
  of the date of the PSP9 Merger to be substantially equivalent to its estimated
  net asset value as of March 31, 1996.  The PSP9 Common Stock held by PSI will
  be cancelled in the PSP9 Merger.

       It is estimated that the aggregate consideration (cash and PSI Common
  Stock) to be paid by PSI to purchase all of the PSP9 Common Stock in the PSP9
  Merger and to pay related costs and expenses would be $46,747,000 (assuming no
  Required PSP9 REIT Distributions) and that the total amount of cash that would
  be required by PSI to purchase the PSP9 Common Stock from PSP9 Shareholders
  making Cash Elections and to pay the allocated portion of the costs and
  expenses of the PSP9 Merger would be $10,249,300 (assuming maximum Cash
  Elections).  See "-- Determination of Payments to be Received by PSP9 and PSBP
  Shareholders in Connection with the Mergers" and "-- Costs of the Mergers."
  These amounts would be reduced to the extent PSP9 must pay a Required PSP9
  REIT Distribution.

       PSBP.  As a result of the PSBP Merger, the separate existence of PSBP
  would cease.  Upon consummation of the PSBP Merger, each outstanding share of
  PSBP Common Stock (other than PSBP Dissenting Shares) would be converted into
  the right to receive cash, PSI Common Stock or a combination of the two, as
  follows:  (i) with respect to a certain number of shares of PSBP Common Stock
  (not to exceed 20% of the outstanding PSBP Common Stock, or 106,832 shares,
  less any PSBP Dissenting Shares), upon a Cash Election, $19.59 in cash,
  subject to reduction as described below, or (ii) that number of shares of PSI
  Common Stock (subject to rounding) determined by dividing $19.59, subject to
  reduction as described below, by the average of the per share closing prices
  on the NYSE of PSI Common Stock during the 20 consecutive trading days ending
  on the fifth trading day prior to the special meeting of the PSBP
  Shareholders.  If a PSBP Shareholder does not make a Cash Election, all of his
  or her PSBP Common Stock would be converted into PSI Common Stock in the PSBP
  Merger.  The consideration paid to PSBP Shareholders by PSI in the PSBP Merger
  will be reduced on a pro rata basis by the Required PSBP REIT Distributions
  (estimated at up to $.24 per share).  The consideration received by PSBP
  Shareholders in the PSBP Merger, however, along with any Required PSBP REIT
  Distributions, will not be less than $19.59 per share of PSBP Common Stock,
  which amount represents the market value of PSBP's real estate assets at
  October 31, 1995 (based on an independent appraisal) and the estimated net
  asset value of its other assets at March 31, 1996.  PSBP Shareholders would
  receive the Required PSBP REIT Distributions upon any liquidation of PSBP,
  regardless of the PSBP Merger.  Additional pre-merger cash distributions would
  be made to the PSBP Shareholders to cause PSBP's estimated net asset value as
  of the date of the PSBP Merger to be substantially equivalent to its estimated
  net asset value as of March 31, 1996.  The PSBP Common Stock held by PSI will
  be cancelled in the PSBP Merger.

                                       28
<PAGE>
 
       It is estimated that the aggregate consideration (cash and PSI Common
  Stock) to be paid by PSI to purchase all of the PSBP Common Stock in the PSBP
  Merger and to pay related costs and expenses would be $10,794,000 (assuming no
  Required PSBP REIT Distributions) and that the total amount of cash that would
  be required by PSI to purchase the PSBP Common Stock from PSBP Shareholders
  making Cash Elections and to pay the allocated portion of the costs and
  expenses of the PSBP Merger would be $2,442,800 (assuming maximum Cash
  Elections).  See "-- Determination of Payments to be Received by PSP9 and PSBP
  Shareholders in Connection with the Mergers" and "-- Costs of the Mergers."
  These amounts would be reduced to the extent PSBP must pay a Required PSBP
  REIT Distribution.

       The Boards of Directors of PSP9 and PSBP are also proposing that the
  bylaws of PSP9 and PSBP be amended to authorize the Mergers.  See "Amendment
  to Bylaws of PSP9 and PSBP."

       The PSP9 Merger and the PSBP Merger are not conditioned on each other.

  Background

       General.  The Mergers have been initiated and structured by individuals
  who are executive officers of PSI, PSP9 and PSBP.  Special committees composed
  of independent directors of PSP9 and PSBP, respectively, have reviewed the
  terms of the Mergers, and the Boards of Directors of PSP9 and PSBP, based on
  recommendations of these special committees, which the Boards of Directors
  have adopted, and on the opinions of financial advisors in which they concur,
  believe that the Mergers are fair to the public shareholders of PSP9 and PSBP,
  respectively, and recommend that PSP9 and PSBP Shareholders, respectively,
  vote for the Mergers.

       PSP9 and PSBP were organized to succeed to the business of the PSP9
  Partnership and PSBP Partnership in reorganization transactions completed on
  December 31, 1990 and August 5, 1991, respectively.  The PSP9 Partnership
  raised $43,434,300 in a public offering in 1983 primarily to develop and
  operate mini-warehouses.  The PSBP Partnership raised $9,840,500 in a public
  offering in 1982 to develop and operate a business park.  All of the proceeds
  from both offerings have been invested.  PSMI was the sponsor of both
  partnerships.

       Both partnerships originally anticipated selling or financing their
  properties from seven to ten years after completion of their development,
  i.e., between 1992 and 1995 in the case of the PSP9 Partnership and between
  1991 and 1994 in the case of the PSBP Partnership.  By 1990, significant
  changes had taken place in the financial and real estate markets affecting the
  timing of any proposed sale or financing, including:  (i) the increased
  construction of mini-warehouses and business parks from 1984 to 1988, which
  had increased competition, (ii) the general deterioration of the real estate
  market (resulting from a variety of factors, including the 1986 changes in tax
  laws), which had significantly affected property values and decreased real
  estate sales activities, (iii) the reduced sources of real estate financing
  (resulting from a variety of factors, including adverse developments in the
  savings and loan industry) and (iv) the glut in the real estate market caused
  by overbuilding and sales of properties acquired by financial institutions.

       In view of the events affecting the timing of the sale or financing of
  the partnerships' properties, PSMI, the sponsor of the partnerships, concluded
  that the limited partners of the partnerships, as well as the limited partners
  of other partnerships sponsored by PSMI, should be provided with a more
  efficient method of realizing the value of their investment than the secondary
  market for limited partnership interests and that some of the disadvantages of
  operating in partnership form should be avoided.  Accordingly, in 1990, PSMI
  commenced planning the reorganization of the PSP9 and PSBP Partnerships and
  other public limited partnerships sponsored by PSMI into individual
  corporations taxed as REITs, and, between December 1990 and November 1991,
  PSMI completed such reorganization of the partnerships and 16 other public
  partnerships.

       The reorganizations were implemented primarily to provide liquidity to
  investors, to avoid the effects of legislation designed to require limited
  partnerships to withhold state income taxes from distributions and to simplify
  partnership administration.  The reorganizations were not designed to alter
  the business of the partnerships, but merely the form in which the
  partnerships were operated and were not intended to have any material impact
  on the timing of the sale or financing of the partnerships' properties.

                                       29
<PAGE>
 
       In response to changes requested by the unaffiliated dealer manager of
  both partnerships' original offerings of limited partnership interests, PSP9
  and PSBP added provisions to their bylaws to the effect that their
  shareholders be presented with proposals to sell all or substantially all of
  the properties, distribute the proceeds from such sale and liquidate the
  corporations.  Later, in settlement of litigation arising from the
  reorganization of PSP9, PSP9's bylaw provision was amended to expand the terms
  of the proposal to include a possible financing of its properties.

       The PSP9 Merger satisfies PSP9's obligation to present a proposal to PSP9
  Shareholders for the sale or financing of its properties in 1996.

       If approved by PSBP Shareholders, the PSBP Merger would obviate PSBP's
  obligation to present a proposal to PSBP Shareholders for the sale of its
  property.  If PSBP Shareholders do not approve the PSBP Merger or if the PSBP
  Merger is not completed because other conditions are not satisfied, PSBP would
  continue to be obligated to present a proposal to PSBP Shareholders in 1999
  for the sale of its property.

       The PSP9 and PSBP Special Committees and the PSP9 and PSBP Boards of
  Directors believe that the proposed Mergers are consistent with their
  respective bylaw provisions.  In the Mergers, PSP9 and PSBP would be disposing
  of their properties to PSI for value, i.e., PSI Common Stock and cash (if Cash
  Elections are made), and the corporate existence of PSP9 and PSBP would cease.
  Furthermore, the consideration to be received in the Mergers is based on the
  appraised value of the assets of PSP9 and PSBP, and PSP9 and PSBP Shareholders
  have the right, with respect to up to 20% of the outstanding PSP9 and PSBP
  Common Stock (less any Dissenting Shares), to receive cash in the Mergers.
  The applicable bylaw provisions do not (i) define the terms "sale,"
  "liquidation" or "financing," (ii) specify what types of transactions would
  satisfy the requirement imposed by these bylaw provisions or (iii) preclude
  sales of the properties of PSP9 or PSBP to PSI.

       PSI, which was organized in 1980, has from time to time taken actions to
  increase its asset and capital base and increase diversification.  Between
  September 1994 and June 1995, PSI merged with three REITs, which like PSP9 and
  PSBP had been organized to succeed to the business of predecessor partnerships
  sponsored by PSMI.

       PSP9 and PSBP Board Actions.  The Boards of Directors of PSP9 and PSBP
  consist of the same three persons:  B. Wayne Hughes, the chief executive
  officer of PSI, PSP9 and PSBP, Vern O. Curtis and Jack D. Steele.

       At a telephonic meeting of the Boards of Directors of PSP9 and PSBP,
  which included officers and in-house counsel on November 2, 1995, the Boards
  of Directors of PSP9 and PSBP appointed special committees of independent
  directors, consisting of Vern O. Curtis and Jack D. Steele, to consider and
  make recommendations to the Boards of Directors regarding proposed mergers of
  PSP9 and PSBP into PSI.  Mr. Curtis and Mr. Steele were the members of the
  special committees that considered the mergers of three other REITs into PSI
  in September 1994 - June 1995.  Following the board meetings, the special
  committees held organizational meetings by telephone, which included officers
  and in-house counsel, and discussed the current financial performance of the
  properties of PSP9 and PSBP, the trading price of the PSP9 and PSBP Common
  Stock, the status of the PSMI Merger and the qualifications of Stanger and
  Wilson.  Following the discussion, the special committees approved Wilson, on
  behalf of PSP9, PSBP and PSI, to appraise the properties of PSP9 and PSBP,
  determined to engage Hogan & Hartson L.L.P. as special counsel to represent
  and advise the special committees as to their legal obligations in making
  recommendations regarding the proposed mergers with PSI and approved the
  engagement of Stanger to render opinions as to the fairness, from a financial
  point of view, of the consideration to be received by PSP9 and PSBP
  Shareholders in the Mergers.  Wilson, Hogan & Hartson L.L.P. and Stanger had
  acted in similar capacities in connection with the mergers of three other
  REITs into PSI.

       On December 13, 1995, the PSP9 and PSBP Special Committees held a
  telephone meeting, which included officers of PSP9 and PSBP, a representative
  of Wilson and representatives of Stanger.  First, the officers of PSP9 and
  PSBP described the mechanics of arriving at the value per share of PSP9 and
  PSBP Common Stock, the absence of any material environmental contingency and
  the provision giving PSI the right to terminate the Merger Agreement if the
  price of PSI Common Stock is below $18 per share.  Next, the Wilson
  representative described generally the methodology used in appraising PSP9's
  and PSBP's properties.  The Stanger representatives presented Stanger's
  analysis, which included the following items:  (1) they briefly reviewed
  Stanger's recent experience relating to mini-

                                       30
<PAGE>
 
  warehouses; (2) they noted that Stanger had performed a similar analysis in
  connection with prior mergers of REITs into PSI, including a review of the
  portfolio appraisals prepared by Wilson; (3) they noted that Stanger reviewed
  the appraisal methodologies utilized; (4) they noted that Stanger reviewed the
  capitalization rates utilized in the portfolio appraisals, which were
  approximately 10.1% in the case of PSP9 and 9.5% in the case of PSBP, based on
  net operating income generated for the 12 months prior to the appraisal date;
  (5) they noted that Stanger reviewed the capitalization rates on PSI
  transactions during the prior 12 months, reviewed capitalization rates
  currently cited by industry sources for mini-warehouse transactions, and
  concluded that the capitalization rates used in Wilson's appraisal were
  consistent with transactions in the market; (6) they noted that Stanger
  reviewed a liquidation analysis, including assumptions (liquidation of PSP9's
  and PSBP's properties on a property-by-property basis) prepared by PSP9 and
  PSBP based on certain information provided by Wilson and that the projected
  consideration per share resulting from liquidation under that analysis was
  less than the consideration offered in the Mergers; (7) they indicated that
  Stanger noted Wilson's assumption that no premium is appropriate for the bulk
  acquisition of an assembled portfolio, that Stanger reviewed information on
  bulk purchases by PSI or affiliates in which the capitalization rates averaged
  10.4%, and discussed bulk transactions with industry sources, and, based upon
  that review, Stanger concluded that Wilson's assumption was consistent with
  transactions in the market; (8) they noted that Stanger reviewed a going
  concern analysis, based on analyses and five-year and 10-year projections
  provided by PSP9 and PSBP, under scenarios in which the PSP9 and PSBP Common
  Stock would be liquidated into the securities markets or PSP9's and PSBP's
  properties would be liquidated after 10 years at their residual value (from
  Wilson's appraisal), that Stanger reviewed the FFO multiples used in the
  various scenarios regarding the sale of the PSP9 and PSBP Common Stock, and
  they noted that, under the lower multiple, the estimated value per share on a
  going concern basis was approximately 21% and 15% lower for PSP9 and PSBP,
  respectively, than the consideration offered in the Mergers and that, under
  the higher multiple, the estimated value per share on a going concern basis
  was approximately 9% and 3% lower, respectively; (9) they noted that Stanger
  had reviewed the historical market prices of PSP9's Common Stock and compared
  them with the consideration offered in the Mergers, and they noted that the
  consideration offered in the Mergers, reduced by estimated retained earnings
  between the date of the appraisal and March 31, 1996, represents an
  approximately 5.76% premium over the then current price of the PSP9 Common
  Stock and a 7.17%, 7.68%, 7.04% and 6.98% premium over its average closing
  price for the prior 20 days, 60 days, 180 days and 360 days, respectively;
  (10) they noted that Stanger had reviewed the historical market prices of
  PSBP's Common Stock and compared them with the consideration offered in the
  Mergers, and they noted that the consideration offered in the Mergers, reduced
  by estimated retained earnings between the date of the appraisal and March 31,
  1996, represents an approximately 10.66% premium over the then current price
  of the PSBP Common Stock and a 8.69%, 9.93%, 9.24% and 14.72% premium over its
  average closing price for the prior 20 days, 60 days, 180 days and 360 days,
  respectively; and (11) they indicated that, subject to receipt of certain
  documents, Stanger was prepared to render its opinions that the consideration
  to be received in the Mergers is fair to the public shareholders of PSP9 and
  PSBP from a financial point of view. A financing of the properties was briefly
  discussed by officers of PSP9 and PSBP and the PSP9 and PSBP Special
  Committees, but was considered not to be a feasible alternative because REITs,
  like PSP9 and PSBP, are required to distribute substantially all taxable
  income and, as a result of the age of PSP9's and PSBP's properties, within the
  next several years, PSP9 and PSBP will have no depreciation deductions
  available to reduce PSP9's and PSBP's taxable income. Therefore, if they were
  to refinance their properties, PSP9 and PSBP would not have sufficient funds
  available to meet the REIT distribution requirements after making principal
  amortization payments. The PSP9 and PSBP Special Committees and Stanger
  discussed the reduction in distributions to PSP9 Shareholders who receive PSI
  Common Stock in the Mergers. Following the discussion, the PSP9 and PSBP
  Special Committees expressed the belief that the Mergers are fair to, and in
  the best interests of, public shareholders of PSP9 and PSBP and determined to
  recommend to the Board that the Mergers be approved and to recommend that PSP9
  and PSBP Shareholders vote for the Mergers. Based on the foregoing
  recommendations of the PSP9 and PSBP Special Committees, which were adopted by
  the PSP9 and PSBP Boards of Directors, the PSP9 and PSBP Boards of Directors
  expressed the belief that the Mergers are fair to, and in the best interests
  of, public shareholders of PSP9 and PSBP, approved the Mergers, determined to
  recommend that PSP9 and PSBP Shareholders vote for the Mergers and approved
  the filing with the Commission of preliminary proxy materials. See "--
  Comparison of Consideration to be Received in the Merger to Other
  Alternatives" and "Risk Factors and Material Considerations -- Lower Level of
  Distributions to PSP9 Shareholders."

       Public Announcement of Mergers and Commission Filings. On December 13 and
  14, 1995, PSI, PSP9 and PSBP signed the Merger Agreement and publicly
  announced the general terms of the Mergers, respectively. On

                                       31
<PAGE>
 
  December 22, 1995, PSP9 and PSBP filed preliminary proxy materials with the
  Commission.  On _______________, 1996, PSI filed a registration statement,
  which was declared effective on _______________, 1996.

  Reasons for the Mergers and Timing

       The reasons for the decision of the special committees and boards of
  directors of PSP9 and PSBP to recommend the Mergers include:

       .   The bylaws of PSP9 and PSBP include provisions that their
           shareholders be presented with a proposal to sell all of the
           corporations' properties, distribute the proceeds from such sale and
           liquidate the corporations.  The proposed Mergers satisfy these
           obligations.  See "-- Background."

       .   The Mergers provide PSP9 and PSBP Shareholders with the choice of
           either (A) converting their investment in PSP9 and PSBP,
           respectively, into an investment in PSI, which generally owns the
           same type of properties as PSP9 (and which, like PSBP, also owns
           business parks to a lesser extent), on a tax-free basis (assuming
           each of the Mergers is a tax-free reorganization) and which has, and
           intends to continue, to acquire additional properties or (B) with
           respect to up to 20% of the outstanding PSP9 and PSBP Common Stock
           (less any Dissenting Shares), receiving in cash the amounts they
           would receive if the properties of PSP9 and PSBP were sold at their
           appraised values and the corporations were liquidated (without any
           reduction for real estate commissions and other sales expenses).  See
           "-- Recommendation to PSP9 and PSBP Shareholders and Fairness
           Analysis."

       .   The special committees and boards of directors of PSP9 and PSBP
           believe that the Mergers are more advantageous to PSP9 and PSBP
           Shareholders than any of the alternatives.  See "-- Alternatives to
           Mergers" and "-- Recommendation to PSP9 and PSBP Shareholders and
           Fairness Analysis."

       .   PSI has agreed to merge with PSP9 and PSBP at this time, subject to
           approval by PSP9 and PSBP Shareholders and certain other conditions.
           See "-- The Merger Agreement -- Conditions to Consummation of the
           Mergers."

  Alternatives to Mergers

       The following is a brief discussion of the benefits and disadvantages of
  alternatives to the Mergers that could have been pursued by the PSP9 and PSBP
  Board of Directors.

       Liquidation

            Benefits of Liquidation.  An alternative to the Mergers would be to
  liquidate the assets of PSP9 and PSBP, distribute the net liquidation proceeds
  to their respective shareholders in proportion to their share ownership and
  thereafter dissolve PSP9 and PSBP.  Through such liquidation, PSP9 and PSBP
  would provide for a final wrapping up of their shareholders' interests in the
  corporations.  PSP9 and PSBP Shareholders would receive cash liquidation
  proceeds (as they will as to a portion of their investment if they make Cash
  Elections).  Liquidating PSP9 and PSBP would be consistent with their bylaws
  that provide that their shareholders be presented with proposals for the sale
  of their properties and liquidation.  If PSP9 and PSBP liquidated their assets
  through asset sales to unaffiliated third parties, their shareholders would
  not need to rely upon real estate portfolio appraisals of the fair market
  value of their real estate assets.  Such assets would be valued through arms'
  length negotiations between PSP9 and PSBP and prospective purchasers.

            Disadvantages of Liquidation.  Since the time the predecessors of
  PSP9 and PSBP were organized, significant changes have taken place in the
  financial and real estate markets that have had a materially adverse impact
  upon the value of commercial real estate.  These changes have included, among
  others, the following:  (i) the increased construction of mini-warehouses and
  business parks from 1984 to 1988, which has increased competition, (ii) the
  general deterioration of the real estate market (resulting from a variety of
  factors, including the 1986 changes in tax laws), which has significantly
  affected property values and decreased real estate sales activities, (iii) the
  reduced sources

                                       32
<PAGE>
 
  of real estate financing (resulting from a variety of factors, including
  adverse developments in the savings and loan industry) and (iv) the glut in
  the real estate market caused by overbuilding and sales of properties acquired
  by financial institutions.  Although conditions have improved, these
  developments have resulted in a reduced market for the sale and financing of
  commercial real estate, making this, in the view of the boards of directors
  and special committees of PSP9 and PSBP, a less than optimal time to liquidate
  the real estate assets of PSP9 and PSBP.  For many PSP9 and PSBP Shareholders,
  the proceeds available for reinvestment after liquidation would be reduced as
  a result of federal and state income taxes (as they would be in the case of
  Cash Elections) and real estate commissions and other sales expenses
  (estimated at $.95 per share of PSP9 Common Stock and $1.06 per share of PSBP
  Common Stock).

            PSP9 and PSBP Shareholders should recognize that appraisals are
  opinions as of the date specified and are subject to certain assumptions and
  may not represent the true worth or realizable value of these properties.
  There can be no assurance that if these properties were sold, they would be
  sold at the appraised values; the sales prices might be higher or lower than
  the appraised values.

            Liquidation Procedures.  As with a merger, a liquidation of PSP9 or
  PSBP would require approval by the holders of a majority of outstanding common
  stock.  Upon the dissolution of PSP9 or PSBP, properties would be sold and any
  funds remaining after payment of debts, and liabilities would be distributed
  to shareholders in respect of their shares.  As holders of approximately 30%
  of the shares of PSP9 and PSBP Common Stock, PSI and its affiliates would
  receive approximately 30% of the available funds in the liquidation.  The
  process for liquidating the assets of PSP9 and PSBP would in large measure be
  within the control of the PSP9 and PSBP Boards of Directors.  Liquidation may
  be accomplished through a series of separate transactions with different
  purchasers or as a part of a multi-property transaction.

            The PSP9 and PSBP Boards of Directors may engage real estate
  brokers, investment bankers, financial consultants and others to assist with
  the disposition of the corporations' assets.  These persons may assist with
  the identification of prospective purchasers, arrangements for asset
  financing, and assistance with the structure of the transaction.  The PSP9 and
  PSBP Boards of Directors, as fiduciaries to PSP9 and PSBP Shareholders,
  respectively, remain responsible for determining the terms and conditions of
  the transaction.  One of the more significant considerations for the PSP9 and
  PSBP Boards of Directors would be the decision whether to insist upon payment
  in full upon sale of a property or to accept a portion of the sale price at
  closing and the balance through installment payments.  Acceptance of a sale
  proposal providing for deferred payments would extend the life of the
  corporation until receipt of those amounts by the corporation and their
  distribution to the shareholders.  Such arrangements would also expose the
  corporation to the risk that deferred payments might not be collected in full
  and that the corporation might be forced to foreclose on any collateral given
  to secure payment of the deferred obligations.  It is not possible to predict
  the time period that would be required to liquidate PSP9 or PSBP because it
  would depend on market conditions at the time of liquidation.

       Continued Operation of PSP9 and PSBP

            Benefits of Continuation.

            PSP9.  Another alternative to the PSP9 Merger would be to continue
  PSP9 in accordance with its existing business plan, with PSP9 remaining as a
  separate legal entity and with its own assets and liabilities.  Nothing
  requires the liquidation or merger of PSP9 at this time, and PSP9 is operating
  profitably and does not need to liquidate or reorganize to satisfy debt
  obligations or other current liabilities or to avert defaults, foreclosures or
  other adverse business developments.

            There has been improvement in the mini-warehouse markets.  As the
  pace of new mini-warehouse development has slowed, there has been a
  corresponding improvement in the financial performance of existing properties.
  This improvement is evidenced by the performance of PSP9's mini-warehouses.
  For example, from 1992 to 1994, occupancy per square foot increased from an
  average of 90% to 91%, and realized monthly rents from an average of $.64 per
  square foot to $.70 per square foot.  Assuming that there is no substantial
  new development of mini-warehouses in the foreseeable future, the PSP9 Board
  of Directors anticipates that the financial performance from existing
  facilities may continue to improve, although not necessarily at the rate of
  improvement experienced in prior

                                       33
<PAGE>
 
  years.  Should such improvements continue, the value of PSP9's properties
  would be expected to increase.  See "Description of PSP9's Properties."

            A number of advantages are expected to arise from the continued
  operation of PSP9.  PSP9 Shareholders should continue to receive regular
  quarterly distributions of net cash flow arising from operations and the sale
  or refinancing of PSP9's assets.  Given the currently improving market
  conditions for mini-warehouses, the PSP9 Board of Directors and the PSP9
  Special Committee believe that the level of these distributions to PSP9 may
  improve.  Continuing PSP9 affords PSP9 Shareholders with the opportunity to
  participate in any future appreciation in PSP9's properties.  In addition, the
  decision to continue PSP9, if selected, means that there would be no change in
  the nature of PSP9's Shareholders' investment.  This option avoids whatever
  disadvantages might be deemed inherent in the PSP9 Merger.  See "Risk Factors
  and Material Considerations" for discussion of various risks associated with
  the PSP9 Merger.

            PSBP.  Another alternative to the PSBP Merger would be to continue
  PSBP in accordance with its existing business plan, with PSBP remaining as a
  separate legal entity and with its own assets and liabilities.  Nothing
  requires the liquidation or merger of PSBP at this time, and PSBP is operating
  profitably and does not need to liquidate or reorganize to satisfy debt
  obligations or other current liabilities or to avert defaults, foreclosures or
  other adverse business developments.  The performance of PSBP's business park
  has generally been stable with its occupancy and rental rates remaining
  approximately the same over the last three years.

            A number of advantages are expected to arise from the continued
  operation of PSBP.  PSBP Shareholders should continue to receive regular
  quarterly distributions of net cash flow arising from operations and the sale
  or refinancing of PSBP's property.  Continuing PSBP affords PSBP Shareholders
  with the opportunity to participate in any future appreciation in PSBP's
  property.  In addition, the decision to continue PSBP, if selected, means that
  there would be no change in the nature of PSBP's Shareholders' investment from
  an interest in an entity that owns a single business park to an interest in an
  entity that owns primarily mini-warehouses.  This option avoids whatever
  disadvantages might be deemed inherent in the PSBP Merger.  See "Risk Factors
  and Material Considerations" for discussion of various risks associated with
  the PSBP Merger.

            Disadvantages of Continuation.  The primary disadvantage with
  continuing PSP9 and PSBP is the failure of that strategy to secure the
  benefits that their boards of directors expect to result from the Mergers.
  These benefits are highlighted under "-- Potential Advantages of the Mergers."
  The Mergers afford PSP9 and PSBP Shareholders increased liquidity.  In
  addition, because PSP9 and PSBP are not authorized to issue new securities or
  to reinvest sale or financing proceeds, they are less able to take advantage
  of new real estate investment opportunities.  In contrast, PSI has a
  substantially larger, more diversified, investment portfolio that reduces the
  risks associated with any particular assets or group of assets and increases
  PSI's ability to access capital markets for new capital investments.

       Amendment of Bylaws

            Benefits of Bylaw Amendment.  Another alternative to the Mergers
  would be an amendment to the bylaws of PSP9 and PSBP to remove the
  restrictions on investment of cash flow and on the issuance of securities.  If
  approved, such action would provide some of the advantages of the Mergers.
  PSP9 and PSBP could take advantage of new real estate opportunities through
  the reinvestment of cash flow and the investment of proceeds from the issuance
  of securities.

            Disadvantages of Bylaw Amendment.  The boards of directors and the
  special committees of PSP9 and PSBP believe that such an amendment has
  disadvantages.  It is believed that PSP9 and PSBP Shareholders could better
  take advantage through PSI than through either PSP9 or PSBP of the current
  market for REIT securities for the following reasons.  First, PSI has a larger
  capital base.  At September 30, 1995, PSP9 and PSBP had total shareholders'
  equity of $24,489,000 and $5,186,000 compared with PSI's total shareholders'
  equity (pro forma for the PSMI Merger) of $1,479,081,000 (including preferred
  stock) and $1,115,461,000 (without preferred stock).  Second, the market for
  PSI Common Stock should be more liquid than the market for common stock of
  either PSP9 or PSBP.  PSP9 and PSBP have 2,447,506 shares and 534,159 shares
  of common stock, respectively, traded on the AMEX and, during the 12 months
  ended September 30, 1995, the average daily trading volume of the common stock
  of PSP9 and

                                       34
<PAGE>
 
  PSBP was 1,300 and 400 shares, respectively.  In comparison, PSI has
  approximately 72,000,000 shares of Common Stock traded on the NYSE and, during
  the 12 months ended September 30, 1995, the average daily trading volume of
  PSI Common Stock was 60,200 shares (48,400 shares if November 1994 and May
  1995, during which PSI was engaged in public offerings of common stock, are
  excluded).  Third, PSI has broader geographic diversification than either PSP9
  or PSBP.  At November 16, 1995, PSP9 owned 15 properties in six states, PSBP
  owned one property and PSI owned equity interests (directly, as well as
  through general and limited partnership interests and stock interests) in
  1,044 properties in 37 states.  For additional information on the properties
  owned by PSP9, PSBP and PSI, see "-- Comparison of PSP9 and PSBP Common Stock
  with PSI Common Stock," "Description of PSP9's Properties," "Description of
  PSBP's Property" and "Description of PSI's Properties."

  No Solicitation of Other Proposals

       Neither the board of directors nor the special committee of either PSP9
  or PSBP solicited any other proposal for the acquisition of PSP9 or PSBP or
  their properties.  The boards of directors of PSP9 and PSBP agreed to the
  Merger Agreement, which includes a provision against soliciting other offers
  to buy, because they believe that the potential advantages to PSP9 and PSBP
  Shareholders described under "-- Potential Advantages of the Mergers" are more
  likely to be achieved through the Mergers than in a transaction with another
  party.  In particular, assuming the Mergers qualify as tax-free
  reorganizations, no taxable gain or loss will be recognized by PSP9 and PSBP
  Shareholders who exchange their PSP9 and PSBP Common Stock solely for PSI
  Common Stock.  The Required PSP9 REIT Distributions and the Required PSBP REIT
  Distributions generally will be taxable to all PSP9 Shareholders and PSBP
  Shareholders, respectively, as ordinary income to the extent of the respective
  corporation's earnings and profits.  PSI and Hughes have little tax basis in
  their common stock, and many PSP9 and PSBP Shareholders have a tax basis in
  their common stock (approximately $15.48 for most original PSP9 Shareholders
  and approximately $16.74 for most original PSBP Shareholders) lower than the
  consideration to be received in the Mergers.  Accordingly, for many PSP9 and
  PSBP Shareholders, the proceeds available for reinvestment after liquidation
  would be reduced as a result of federal and state income taxes (as they would
  be in the case of Cash Elections) and real estate commissions and other sales
  expenses (estimated at $.95 per share of PSP9 Common Stock and $1.06 per share
  of PSBP Common Stock).  However, another proposal could have been for a higher
  price and possibly also structured as mergers qualifying as tax-free
  reorganizations.  Under California law, most acquisitions of PSP9 or PSBP or
  its properties would require approval by PSP9 and PSBP Shareholders,
  respectively.  PSI and Hughes own approximately 28% of the PSP9 Common Stock
  and approximately 31% of the PSBP Common Stock.

  Determination of Payments to be Received by PSP9 and PSBP Shareholders in
  Connection with the Mergers

       PSP9.  In connection with the PSP9 Merger, PSP9 Shareholders will receive
  a value of $18.64 (less the amount of any Required PSP9 REIT Distributions)
  per share of PSP9 Common Stock in cash, PSI Common Stock, or a combination of
  the two, calculated as follows:

       1.   The market value (not book value) of PSP9's real estate assets has
  been determined by Wilson, showing such values as of October 31, 1995.  In
  valuing PSP9's real estate assets, Wilson considered the applicability of all
  three commonly recognized approaches to valuation:  the cost approach, the
  income approach and the sales comparison approach.  Wilson did not consider
  the cost approach to be applicable to PSP9's properties.  Wilson reconciled
  the values indicated from the sales comparison and income approaches to arrive
  at a final valuation conclusion.  Wilson gave primary emphasis to the income
  approach.  The resulting effective implied capitalization rate for PSP9's
  portfolio of real estate assets based on property operations (before non-
  recurring charges) for the 12 months ended September 30, 1995 averaged 10.1%.
  Wilson's valuation is as of October 31, 1995 in the context of the information
  available on that date.  See "-- Real Estate Portfolio Appraisals by Wilson."

       2.   PSP9's net asset value has been computed as (a) the market value of
  PSP9's real estate assets as of October 31, 1995 ($45,400,000) plus (b) the
  estimated book value of PSP9's non-real estate assets as of March 31, 1996 (a
  total of $945,000) less (c) PSP9's estimated liabilities as of March 31, 1996
  (a total of $727,000).

                                       35
<PAGE>
 
       3.   PSP9's net asset value per share of PSP9 Common Stock was calculated
  at $18.64 by dividing PSP9's net asset value (as computed in 1 and 2 above,
  $45,618,000) by the number of outstanding shares of PSP9 Common Stock
  (2,447,506).

       4.   Upon completion of the PSP9 Merger, each share of PSP9 Common Stock
  (other than PSP9 Dissenting Shares) would be converted into the right to
  receive $18.64 in cash (with respect to up to 20% of the outstanding PSP9
  Common Stock, less any PSP9 Dissenting Shares), subject to reduction as
  described below, or that number of shares of PSI Common Stock determined by
  dividing $18.64, subject to reduction as described below, by the average of
  the closing prices on the NYSE of PSI Common Stock during the 20 consecutive
  trading days ending on the fifth trading day prior to the meeting of PSP9
  Shareholders.  Pre-merger cash distributions would be made to PSP9
  Shareholders to cause PSP9's estimated net asset value as of the date of the
  PSP9 Merger to be substantially equivalent to its estimated net asset value as
  of March 31, 1996.  The consideration paid by PSI to PSP9 Shareholders in the
  PSP9 Merger will be reduced on a pro rata basis by the amount of any Required
  PSP9 REIT Distributions.  However, the consideration received by PSP9
  Shareholders in the PSP9 Merger along with the Required PSP9 REIT
  Distributions (which will be paid in cash) will not be less than $18.64.

       The following tables set forth the calculation of the payments to be paid
  to PSP9 Shareholders:
                            Computation of Payments
<TABLE>
<CAPTION>
       Net book       Appraised      Book value       PSP9's       PSP9's net         Payments
       value of         market        of PSP9's      net asset     asset value       received in
     PSP9's real       value of       other net      value(1)       per share      connection with
       estate           PSP9's        assets(1)                      of PSP9       PSP9 Merger per
     portfolio(1)    real estate                                     Common        original $1,000
                     portfolio(2)                                    Stock        investment in the
                                                                      (1)        PSP9 Partnership(3)
- ----------------------------------------------------------------------------------------------------
<S>                  <C>             <C>            <C>            <C>           <C>
     $25,119,000     $45,400,000      $218,000      $45,618,000     $18.64              $932
</TABLE> 
- ------------------

  (1) Estimated as of March 31, 1996.  Does not reflect the effect of Required
      PSP9 REIT Distributions, estimated at up to $.55 per share or $1,342,000
      in the aggregate.  PSP9 Shareholders would receive the Required PSP9 REIT
      Distributions upon any liquidation of PSP9, regardless of the PSP9 Merger.
      Also includes $599,000 contribution by PSI and Hughes in respect of
      obligations incurred in connection with the PSP9 Partnership.

  (2) As of October 31, 1995.

  (3) Does not include quarterly cash distributions to PSP9 Shareholders or to
      limited partners of the PSP9 Partnership.  PSP9 was organized to succeed,
      on December 31, 1990, to the business of the PSP9 Partnership, which
      completed its offering of limited partnership interests in 1983.  PSP9's
      capital structure was designed to reflect the economic rights of the
      limited and general partners in the PSP9 Partnership.  The market price of
      PSI Common Stock may fluctuate following establishment of the number of
      shares to be issued to PSP9 Shareholders in the PSP9 Merger and prior to
      issuance and could decrease as a result of increased selling activity
      following issuance of shares in the PSP9 Merger and other factors.

       Hughes, who owns approximately 4% of the PSP9 Common Stock would receive
  approximately 98,000 shares of PSI Common Stock in the PSP9 Merger (assuming
  no Required PSP9 REIT Distributions and PSI Common Stock price of $20).

       PSBP. In connection with the PSBP Merger, PSBP Shareholders will receive
  a value of $19.59 (less the amount of any Required PSBP REIT Distributions)
  per share of PSBP Common Stock in cash, PSI Common Stock, or a combination of
  the two, calculated as follows:

       1.   The market value (not book value) of PSBP's property has been
  determined by Wilson, showing such value as of October 31, 1995. In valuing
  PSBP's property, Wilson considered the applicability of, and utilized, all

                                       36
<PAGE>
 
  three commonly recognized approaches to valuation:  the cost approach, the
  income approach and the sales comparison approach.  Wilson reconciled the
  values indicated from the three approaches to arrive at a final valuation
  conclusion.  Wilson gave primary emphasis to the income approach.  The
  resulting effective implied capitalization rate for PSBP's property based on
  property operations (before non-recurring charges) for the 12 months ended
  September 30, 1995 was 9.5%.  Wilson's valuation is as of October 31, 1995 in
  the context of the information available on that date.  See "-- Real Estate
  Portfolio Appraisals by Wilson."

     2.   PSBP's net asset value has been computed as (a) the market value of
  PSBP's property as of October 31, 1995 ($11,500,000) plus (b) the estimated
  book value of PSBP's non-real estate assets as of March 31, 1996 (a total of
  $168,000) less (c) PSBP's estimated liabilities as of March 31, 1996 (a total
  of $1,202,000).

     3.   PSBP's net asset value per share of PSBP Common Stock was calculated
  at $19.59 by dividing PSBP's net asset value (as computed in 1 and 2 above,
  $10,466,000) by the number of outstanding shares of PSBP Common Stock
  (534,159).

     4.   Upon completion of the PSBP Merger, each share of PSBP Common Stock
  (other than PSBP Dissenting Shares) would be converted into the right to
  receive $19.59 in cash (with respect to up to 20% of the outstanding PSBP
  Common Stock, less any PSBP Dissenting Shares), subject to reduction as
  described below, or that number of shares of PSI Common Stock determined by
  dividing $19.59, subject to reduction as described below, by the average of
  the closing prices on the NYSE of PSI Common Stock during the 20 consecutive
  trading days ending on the fifth trading day prior to the meeting of PSBP
  Shareholders.  Pre-Merger cash distributions would be made to PSBP
  Shareholders to cause PSBP's estimated net asset value as of the date of the
  PSBP Merger to be substantially equivalent to its estimated net asset value as
  of March 31, 1996.  The consideration paid by PSI to PSBP Shareholders in the
  PSBP Merger will be reduced on a pro rata basis by the amount of any Required
  PSBP REIT Distributions.  However, the consideration received by PSBP
  Shareholders in the PSBP Merger along with the Required PSBP REIT
  Distributions (which will be paid in cash) will not be less than $19.59.

     The following tables set forth the calculation of the payments to be paid
  to PSBP Shareholders:

                            Computation of Payments
<TABLE>
<CAPTION>
 Net book     Appraised    Book value      PSBP's      PSBP's net       Payments
 value of      market      of PSBP's     net asset    asset value      received in
  PSBP's      value of     other net      value(1)     per share      connection with
 property      PSBP's      assets(1)                    of PSBP       PSBP Merger per
   (1)        property                                   Common       original $1,000
                (2)                                      Stock       investment in the
                                                          (1)       PSBP Partnership(3)
- ---------------------------------------------------------------------------------------
<S>          <C>          <C>           <C>           <C>           <C>
$6,353,000   $11,500,000  ($1,034,000)  $10,466,000     $19.59            $980
</TABLE> 
- ------------

  (1) Estimated as of March 31, 1996.  Does not reflect the effect of Required
      PSBP REIT Distributions, estimated at up to $.24 per share or $130,000 in
      the aggregate.  PSBP Shareholders would receive the Required PSBP REIT
      Distributions upon any liquidation of PSBP, regardless of the PSBP Merger.

  (2) As of October 31, 1995.

  (3) Does not include quarterly cash distributions to PSBP Shareholders or to
      limited partners of the PSBP Partnership.  PSBP was organized to succeed,
      on August 5, 1991, to the business of the PSBP Partnership, which
      completed its offering of limited partnership interests in 1982.  PSBP's
      capital structure was designed to reflect the economic rights of the
      limited and general partners in the PSBP Partnership.  The market price of
      PSI Common Stock may fluctuate following establishment of the number of
      shares to be issued to PSBP Shareholders in the PSBP Merger and prior to
      issuance and could decrease as a result of increased selling activity
      following issuance of shares in the PSBP Merger and other factors.

                                       37
<PAGE>
 
  Potential Advantages of the Mergers to PSP9 and PSBP

      The principal potential benefits to PSP9 and PSBP Shareholders who receive
  PSI Common Stock include the following:

      Acquisition of Additional Properties.  The primary business activity of
  PSP9 and PSBP is operating the properties originally developed by their
  predecessors.  PSP9 and PSBP have not raised additional capital, and their
  articles of incorporation and bylaws restrict their ability to reinvest cash
  flow in new properties.  PSI, on the other hand, has expanded, and is expected
  to continue to expand, its asset and capital base.  PSI is also permitted to
  borrow money to fund new acquisitions.  Accordingly, PSP9 and PSBP
  Shareholders who receive PSI Common Stock in the Mergers will be investors in
  an entity that has grown, and is expected to continue to grow, as new
  investments are made.

      Increased Liquidity.  PSP9 has 2,447,506 shares of Common Stock traded on
  the AMEX and, during the 12 months ended September 30, 1995, the average daily
  trading volume of PSP9 Common Stock was 1,300 shares.  PSBP has 534,159 shares
  of common stock traded on the AMEX and, during the 12 months ended September
  30, 1995, the average daily trading volume of PSBP Common Stock was 400
  shares.  In comparison, PSI has approximately 72,000,000 shares of common
  stock traded on the NYSE (approximately one-half of which are freely
  tradeable) and, during the 12 months ended September 30, 1995, the average
  daily trading volume of PSI Common Stock was 60,200 shares (48,400 shares if
  November 1994 and May 1995, during which PSI was engaged in public offerings
  of common stock, are excluded).  Accordingly, the investment in PSI of PSP9
  and PSBP Shareholders who receive PSI Common Stock in the Mergers should have
  greater liquidity than the current investment of these same shareholders in
  either PSP9 or PSBP.

      Possible Tax-Free Treatment.  Each of the Mergers is intended to qualify
  as a tax-free reorganization.  Assuming such qualification, no taxable gain or
  loss will be recognized in connection with the Mergers by PSP9 and PSBP
  Shareholders who exchange their PSP9 Common Stock and PSBP Common Stock,
  respectively, solely for PSI Common Stock.  However, the Required PSP9 REIT
  Distributions and the Required PSBP REIT Distributions will be taxable to all
  PSP9 Shareholders and PSBP Shareholders, respectively, as ordinary income.
  Hughes, who has little tax basis in his PSP9 Common Stock, has advised PSI and
  PSP9 that he intends to exchange his PSP9 Common Stock solely for PSI Common
  Stock.  See "Certain Federal Income Tax Matters -- The Mergers."

  Recommendation to PSP9 and PSBP Shareholders and Fairness Analysis

      Conclusions.  Based upon an analysis of the Mergers, the special
  committees and boards of directors of PSP9 and PSBP have concluded (i) that
  the terms of the respective merger are fair to PSP9 and PSBP Shareholders,
  (ii) after comparing the potential benefits and detriments of the Mergers with
  alternatives, that the Mergers are more advantageous to PSP9 and PSBP
  Shareholders, respectively, than such alternatives and (iii) that PSP9 and
  PSBP Shareholders, respectively, should vote for the Mergers.

      Although the PSP9 and PSBP Boards of Directors and PSP9 and PSBP Special
  Committees reasonably believe the terms of the Mergers are fair to PSP9 and
  PSBP Shareholders and recommend that PSP9 and PSBP Shareholders vote for the
  Mergers, an affiliate of PSI is a member of the Boards of Directors of both
  PSP9 and PSBP, and PSI has other significant relationships with both PSP9 and
  PSBP and conflicts of interest with respect to the Mergers.  The Mergers have
  been initiated and structured by individuals who are executive officers of
  PSP9 and PSBP and who are also affiliated with PSI.  The PSP9 and PSBP Special
  Committees, composed of independent directors, have reviewed and approved,
  respectively, the terms of the Mergers.  See "Summary -- Relationships" and
  "Conflicts of Interest."

      Material Factors Underlying Conclusions of Special Committees and Boards
  of Directors of PSP9 and PSBP.  The following is a discussion of the material
  factors underlying the conclusions of the PSP9 and PSBP Special Committees and
  Boards of Directors.  The PSP9 and PSBP Boards of Directors and Special
  Committees have not quantified the relative importance of these factors.

                                       38
<PAGE>
 
       1.   Bylaw Provisions.  The bylaws of PSP9 and PSBP require proposals for
  the sale of their properties by 1996 and 1999, respectively.  As discussed
  under "-- Background," the PSP9 and PSBP Special Committees and Boards of
  Directors believe, respectively, that the proposed Mergers satisfy these
  requirements and that, as discussed in paragraph 2 below, the form and amount
  of consideration offered to PSP9 and PSBP Shareholders constitute fair value
  in respect of their shares of PSP9 and PSBP Common Stock, respectively.  The
  PSP9 and PSBP Special Committees and Boards of Directors recognize that if the
  properties of PSP9 and PSBP were liquidated through sales to third parties,
  the PSP9 and PSBP Shareholders would not need to rely upon real estate
  portfolio appraisals to estimate the fair market value of their real estate
  assets.  Such assets would be valued through arms' length negotiations between
  PSP9 and PSBP and the prospective purchasers.

       2.   Consideration Offered.  The PSP9 and PSBP Boards of Directors and
  Special Committees believe that (i) the proposal that the consideration to be
  paid to PSP9 and PSBP Shareholders in the Mergers be based on the value of the
  assets of PSP9 and PSBP is reasonable and consistent with the bylaws of PSP9
  and PSBP, respectively, (ii) the net asset value of PSP9 and PSBP represents a
  fair estimate of the value of their respective assets, net of liabilities, and
  constitutes a reasonable basis for determining the consideration to be
  received by PSP9 and PSBP Shareholders, and (iii) the consideration to be
  received by Hughes in respect of his PSP9 Common Stock is fair because it is
  based on his proportionate share ownership of PSP9.  There was no negotiation
  regarding the basis for determining the consideration to be paid to PSP9 and
  PSBP Shareholders in the Mergers or the consideration to be received by Hughes
  in respect of his PSP9 Common Stock.  See "-- Background."

       3.   Choice as to Form of Consideration.  The Mergers provide PSP9 and
  PSBP Shareholders with the choice of either (A) converting their investment
  into an investment in PSI, which generally owns the same type of properties as
  PSP9 (and which, like PSBP, also owns business parks to a lesser extent), on a
  tax-free basis (assuming the Mergers are tax-free reorganizations and except
  that the Required REIT Distributions will be taxable as ordinary income) and
  which has acquired, and is expected to continue to acquire, additional
  properties or (B) with respect to up to 20% of the outstanding PSP9 and PSBP
  Common Stock (less any Dissenting Shares), receiving in cash the amounts they
  would receive if their properties were sold at their appraised values and the
  corporations were liquidated (without any reduction for real estate
  commissions and other sales expenses).  Although Cash Elections may not be
  made with respect to more than 20% of the outstanding PSP9 or PSBP Common
  Stock, the shares of PSP9 and PSBP Common Stock held by PSI will be cancelled
  in the Mergers, and Hughes would receive PSI Common Stock in respect of his
  PSP9 Common Stock.  Accordingly, Cash Elections may be made with respect to
  approximately 28% and 29% of the outstanding PSP9 and PSBP Common Stock,
  respectively, held by public shareholders.

       4.   Independent Portfolio Appraisals and Fairness Opinions.  The
  conclusions of the PSP9 and PSBP Special Committees and Boards of Directors
  are partially based upon the portfolio appraisals prepared by Wilson and
  Stanger's fairness opinions.  The special committees and boards of directors
  of PSP9 and PSBP attributed significant weight to these items, which they
  believe support their position, and do not know of any factors that are
  reasonably likely to detract from the conclusions in Wilson's portfolio
  appraisals and Stanger's fairness opinions.  The PSP9 and PSBP Special
  Committees and Boards of Directors believe that the engagement of Wilson and
  Stanger to provide the portfolio appraisals and the fairness opinions,
  respectively, assisted the PSP9 and PSBP Special Committees and Boards of
  Directors in the fulfillment of their duties to PSP9 and PSBP Shareholders,
  notwithstanding that each of these parties has received fees in connection
  with their engagements and may receive fees in the future.  See "-- Real
  Estate Portfolio Appraisals by Wilson" and "-- Fairness Opinions from
  Stanger."

       5.   Voting Procedures and Dissenters' Rights.  The PSP9 and PSBP Special
  Committees and Boards of Directors believe that the voting process and the
  rights of dissenting shareholders of PSP9 and PSBP support their conclusions
  as to the Mergers.  The Mergers are required to be approved by a majority of
  the outstanding shares of PSP9 and PSBP Common Stock, respectively, as well as
  by a majority of the shares of PSP9 and PSBP Common Stock voting at the
  meetings of PSP9 and PSBP Shareholders not held by PSI and Hughes.  The PSP9
  Merger and the PSBP Merger are not conditioned on each other.  PSP9 and PSBP
  Shareholders will have the right to exercise Dissenters' Rights, although the
  special committees and boards of directors of PSP9 and PSBP recognize that
  these rights may be exercised by PSP9 and PSBP Shareholders only if demands
  for payment are filed with respect to 5% or more of the outstanding shares of
  PSP9 and PSBP Common Stock, respectively.

                                       39
<PAGE>
 
       6.   Comparison of Payments to be Received at the Time of the Mergers to
  Other Alternatives.  The payments to be received at the time of the Mergers of
  $18.64 per share of PSP9 Common Stock and $19.59 per share of PSBP Common
  Stock compares favorably with (A) the trading price of the PSP9 and PSBP
  Common Stock immediately prior to the first announcement of the Mergers ($17-
  1/8 and $17-3/8, respectively) and during other periods, (B) a range of
  estimated going concern value per share of PSP9 and PSBP Common Stock ($15.78
  to $18.04 and $15.37 to $17.83, respectively), (C) an estimated liquidation
  value per share of PSP9 and PSBP Common Stock ($17.39 and $18.53,
  respectively) and (D) the book value per share of PSP9 and PSBP Common Stock
  as of September 30, 1995 ($9.84 and $9.71, respectively).  The boards of
  directors and special committees of PSP9 and PSBP recognize that this
  comparison is subject to significant assumptions, qualifications and
  limitations.  See "-- Comparison of Consideration to be Received in the
  Mergers to Other Alternatives."

       7.   Lower Level of Distributions to PSP9 Shareholders After the Mergers.
  Depending on the market price of the PSI Common Stock during the period in
  which the number of shares to be issued in the Mergers is established, the
  level of distributions to PSP9 Shareholders who receive PSI Common Stock in
  the Mergers may be lower after the Mergers than before.  Based on a market
  price of PSI Common Stock of $20 and the current regular quarterly
  distribution rate for PSI ($.22 per share) and PSP9 ($.30 per share), PSP9
  Shareholders would receive approximately $.095 (32%) less in regular quarterly
  distributions per share of PSP9 Common Stock after the Mergers from PSI than
  before the Mergers from PSP9 and approximately $.01 less per share in regular
  quarterly distributions for each $1.03 (5.2%) increase in the market price of
  PSI Common Stock above $20.

       8.   Conflicts of Interest.  The Mergers have been initiated and
  structured by individuals who are executive officers of PSP9 and PSBP and who
  are also affiliated with PSI.  Independent representatives were not engaged to
  negotiate these arrangements on behalf of the public shareholders of PSP9 and
  PSBP, and the terms of the Mergers are not the result of arms' length
  negotiations.  Hughes will receive PSI Common Stock in respect of his
  ownership of approximately 4% of the PSP9 Common Stock.

       The special committees and boards of directors of PSP9 and PSBP do not
  believe that the absence of independent representatives to negotiate the
  Mergers undermines the fairness of the Mergers because the Mergers have been
  reviewed and approved by the special committees of PSP9 and PSBP, comprised of
  independent directors.  Based upon the use of an independent appraisal firm,
  the Stanger fairness opinions and the participation of the special committees
  of PSP9 and PSBP, the boards of directors and special committees of PSP9 and
  PSBP considered that the engagement of such independent representatives was
  not necessary or cost effective.

       Comparison of Benefits and Detriments.  Prior to concluding that the
  Mergers should be proposed to PSP9 and PSBP Shareholders, the boards of
  directors and special committees of PSP9 and PSBP considered several
  alternatives to the Mergers.  The alternatives considered by the boards of
  directors and special committees of PSP9 and PSBP were liquidation,
  continuation of operations and amendments to organizational documents.  In
  order to determine whether the Mergers or one of its alternatives would be
  more advantageous to PSP9 and PSBP Shareholders, the PSP9 and PSBP Boards of
  Directors and Special Committees compared the potential benefits and
  detriments of the Mergers with the potential benefits and detriments of the
  alternatives.  See "-- Alternatives to Mergers" for a discussion of the
  potential benefits and detriments of each of these alternatives.  Each of the
  Mergers and its alternatives offers potential benefits and suffers from
  potential detriments not possessed by the other alternatives.  Set forth below
  are the conclusions of the PSP9 and PSBP Boards of Directors and Special
  Committees regarding the comparison of the Mergers to the alternatives.

             (i) The PSP9 and PSBP Boards of Directors and Special Committees
       favor the Mergers over liquidation because they believe that (A) the
       Mergers permit PSP9 and PSBP Shareholders to take advantage of the
       current markets for REIT securities which more fully reflect the
       underlying net asset value of many REITs that grow, like PSI, (B) PSP9
       and PSBP should not be liquidated at this time (other than through the
       Mergers that provide PSP9 and PSBP Shareholders who receive PSI Common
       Stock with greater liquidity and increased geographic diversification,
       while retaining an interest in a similar type of properties (in the case
       of PSP9) which may increase in value) and (C) the Mergers provide PSP9
       and PSBP Shareholders, with respect to up to 20% of the outstanding
       common stock of PSP9 and PSBP (less any PSP9 and PSBP Dissenting Shares,
       respectively), with the opportunity, if they so elect, to receive in cash
       the amounts they would receive

                                       40
<PAGE>
 
       if PSP9's and PSBP's properties were sold at their appraised values and
       were liquidated (without any reduction for real estate commissions and
       other sales expenses).

             (ii) The PSP9 and PSBP Boards of Directors and Special Committees
       have concluded that continued operation of PSP9 and PSBP is not as
       attractive an alternative as the Mergers because the Mergers afford PSP9
       and PSBP Shareholders increased liquidity and the opportunity to
       participate in PSI, an entity that, unlike PSP9 and PSBP, has grown, and
       is expected to continue to grow, as new investments are made.  However,
       the PSP9 and PSBP Boards of Directors and Special Committees recognize
       that the level of distributions to PSP9 Shareholders who receive PSI
       Common Stock may be reduced.  See "-- Recommendation to PSP9 Shareholders
       -- 7. Lower Level of Distributions to PSP9 Shareholders After the
       Mergers."

             (iii)  The PSP9 and PSBP Boards of Directors and Special Committees
       believe that PSP9 and PSBP Shareholders would have better opportunities
       to participate in the current markets for equity securities of REITs
       through PSI than through PSP9 and PSBP, even if their bylaws were amended
       to remove restrictions on reinvestment of cash flow and on the issuance
       of securities of PSP9 and PSBP, because of PSI's larger capital base,
       greater liquidity and broader geographic diversification.

      Based upon this comparison of the potential benefits and detriments of the
  Mergers with its alternatives, the PSP9 and PSBP Boards of Directors and
  Special Committees have concluded, respectively, that the Mergers are more
  attractive to PSP9 and PSBP Shareholders than any of the alternatives.

  Comparison of Consideration to be Received in the Mergers to Other 
  Alternatives

      General.  To assist PSP9 and PSBP Shareholders in evaluating the Mergers,
  the PSP9 and PSBP Boards of Directors and Special Committees compared the
  consideration to be received in the Mergers, i.e., a value of $18.64 per share
  (less the amount of any Required PSP9 REIT Distributions) of PSP9 Common Stock
  and a value of $19.59 per share (less the amount of any Required PSBP REIT
  Distributions) of PSBP Common Stock against:  (i) the trading price of the
  PSP9 and PSBP Common Stock on the AMEX; (ii) estimates of the value of PSP9
  and PSBP on a liquidation basis assuming that their assets were sold at their
  appraised fair market value and the net proceeds distributed to the PSP9 and
  PSBP Shareholders in accordance with their share ownership in PSP9 and PSBP,
  respectively; and (iii) estimates of the value of each of PSP9 and PSBP on a
  going-concern basis assuming that each were to continue as a stand-alone
  entity and its securities sold at the end of either a five-year or ten-year
  holding period or its assets sold at the end of a ten-year holding period.
  Due to the uncertainty in establishing these values, the boards of directors
  and special committees of PSP9 and PSBP have established a range of estimated
  values for certain of the alternatives, representing a high and low estimated
  value for the potential consideration.  Since the value of the consideration
  for alternatives to the Mergers are dependent upon varying market conditions,
  no assurance can be given that the range of estimated values indicated
  establishes the highest or lowest possible values.  However, the boards of
  directors and special committees of PSP9 and PSBP believe that analyzing the
  alternatives in terms of ranges of estimated value, based on currently
  available market data and, where appropriate, reasonable assumptions made in
  good faith, establishes a reasonable framework for comparing alternatives.

      The results of this comparative analysis are summarized in the following
  table.  PSP9 and PSBP Shareholders should bear in mind that the estimated
  values assigned to the alternate forms of consideration are based on a variety
  of assumptions that have been made by PSP9 and PSBP.  These assumptions
  relate, among other things, to:  projections as to PSP9's and PSBP's future
  income, expenses, cash flow and other significant financial matters; the
  capitalization rates that will be used by prospective buyers when PSP9's and
  PSBP's assets are liquidated; and, appropriate discount rates to apply to
  expected cash flows in computing the present value of the cash flows that may
  be received with respect to shares of PSP9 and PSBP Common Stock.  In
  addition, these estimates are based upon certain information available to PSP9
  and PSBP at the time the estimates were computed, and no assurance can be
  given that the same conditions analyzed by them in arriving at the estimates
  of value would exist at the time of the Mergers.  The assumptions used have
  been determined by the PSP9 and PSBP Boards of Directors and Special
  Committees in good faith, and, where appropriate, are based upon current and
  historical information regarding PSP9 and PSBP and current real estate
  markets, and have been highlighted below to the extent critical to the
  conclusions of the PSP9 and PSBP Boards of Directors and Special Committees.
  While PSP9 and PSBP believe they have a reasonable basis for the assumptions

                                       41
<PAGE>
 
  selected, the assumptions employed by them as to future events may not reflect
  their actual experience.  The estimated values of alternate forms of
  consideration would have been different had PSP9 and PSBP made different
  assumptions, and such differences could be material.

      No assurance can be given that such consideration would be realized
  through any of the designated alternatives, and PSP9 and PSBP Shareholders
  should carefully consider the following discussions to understand the
  assumptions, qualifications and limitations inherent in the presented
  valuations.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------
                                                                                      Estimated Liquidation 
Payments in PSP9 Merger                               Estimated Going Concern        Value per Share of PSP9  
  per Share of PSP9        Trading Prices of PSP9     Value per Share of PSP9            Common Stock at  
    Common Stock              Common Stock (2)            Common Stock (3)             Appraised Value (4)          
- -------------------------------------------------------------------------------------------------------------
<S>                        <C>                        <C>                            <C>      
      $18.64(1)              $16-5/8    $17-1/2          $15.78    $18.04                    $17.39
- -------------------------------------------------------------------------------------------------------------
<CAPTION> 
- -------------------------------------------------------------------------------------------------------------
                                                                                      Estimated Liquidation
  Payments in PSBP                                    Estimated Going Concern        Value per Share of PSBP      
Merger per Share of        Trading Prices of PSBP     Value per Share of PSBP            Common Stock at       
 PSBP Common Stock            Common Stock (2)            Common Stock (3)             Appraised Value (4)          
- -------------------------------------------------------------------------------------------------------------
<S>                        <C>                        <C>                            <C>      
      $19.59(1)              $17-1/4    $18-1/4          $15.37    $17.83                    $18.53
- -------------------------------------------------------------------------------------------------------------
</TABLE>
- ----------------

  (1) Based on the respective corporation's net asset value consisting of the
      independently appraised market value of the respective corporation's real
      estate portfolio as of October 31, 1995 and estimated book value of its
      other net assets as of March 31, 1996 and assuming no Required REIT
      Distributions.  See "-- Determination of Payments to be Received by PSP9
      and PSBP Shareholders in Connection with the Mergers."

  (2) High and low sales prices on the AMEX composite tape for the third quarter
      of 1995, the last full calendar quarter prior to the announcement of the
      Mergers.  On December 13, 1995, the closing price of PSP9 and PSBP Common
      Stock was $17-1/8 and $17-3/8, respectively.

  (3) High and low of three methods of estimating going concern value.  Based
      upon a number of assumptions regarding the future net operating income and
      distributions of PSP9 and PSBP and the date of their liquidation.  See "--
      Going-Concern Value."

  (4) Based upon Wilson's real estate appraisal, less estimated expenses of
      liquidation.  See "-- Liquidation Values."

      Trading Prices of PSP9 and PSBP Common Stock.

           PSP9.  The PSP9 Board of Directors and Special Committee also
  considered that the trading price for PSP9 Common Stock averaged $16.90,
  $16.82, $16.92 and $16.93 for the 20-day, 60-day, 180-day and 360-day periods
  preceding the announcement of the proposed Mergers, that the closing price for
  PSP9 Common Stock on the last trading day prior to the first announcement of
  the proposed Mergers was $17-1/8, and that the highest closing price for PSP9
  Common Stock preceding the announcement of the proposed Mergers was $20-1/4.
  The PSP9 Board of Directors also considered that the consideration offered in
  the PSP9 Merger adjusted for interim earnings of approximately $.53 per share
  (which amount represents increases in current net assets projected to be
  generated and retained between the date of the property Appraisal and March
  31, 1996) represents a premium of 7.17%, 7.68%, 7.04%, 6.98%, 5.76% and
  (10.56)% over the 20-day, 60-day, 180-day and 360-day average closing prices
  and the closing price on the last trading day prior to the announcement of the
  proposed Mergers and the highest closing price recorded for PSP9 Common Stock,
  respectively.

           PSBP.  The PSBP Board of Directors and Special Committee also
  considered that the trading price for PSBP Common Stock averaged $17.69,
  $17.49, $17.60 and $16.76 for the respective 20-day, 60-day, 180-day and

                                       42
<PAGE>
 
  360-day periods preceding the announcement of the proposed Mergers, that the
  closing price for PSBP Common Stock on the last trading day prior to the first
  announcement of the proposed Mergers was $17-3/8, and that the highest closing
  price for PSBP Common Stock preceding the announcement of the proposed Mergers
  was $18-5/8.  The PSBP Board of Directors also considered that the
  consideration offered in the PSBP Merger adjusted for interim earnings of
  approximately $.36 per share (which amount represents increases in current net
  assets projected to be generated and retained between the date of the property
  Appraisal and March 31, 1996) represents a premium of 8.69%, 9.93%, 9.24%,
  14.72%, 10.66% and 3.23% over the 20-day, 60-day, 180-day and 360-day average
  closing prices and the closing price on the last trading day prior to the
  announcement of the proposed Mergers and the highest closing price recorded
  for PSBP Common Stock, respectively.

      Going-Concern Value.  The PSP9 and PSBP Boards of Directors and Special
  Committees have estimated the going-concern value of each of PSP9 and PSBP by
  analyzing projected cash flows and distributions assuming that each of PSP9
  and PSBP were operated as an independent stand-alone entity and its securities
  or assets sold at the end of the holding period under three scenarios:
  Scenario #1 -- a five-year holding period, with shares of PSP9 and PSBP
  liquidated in securities markets at an FFO multiple ranging from 8.5 to 10.5;
  Scenario #2 -- a 10-year holding period, with shares of PSP9 and PSBP
  liquidated in securities markets at an FFO multiple ranging from 8.5 to 10.5;
  and Scenario #3 -- a 10-year holding period with the property portfolios of
  PSP9 and PSBP liquidated in private real estate markets at the terminal value
  projected by the appraiser in the portfolio appraisal and the net proceeds
  resulting from the liquidation of the properties and other remaining assets of
  PSP9 and PSBP paid out to PSP9 and PSBP Shareholders in liquidation
  distributions.  Dividends and sale proceeds per share of PSP9 and PSBP Common
  Stock were discounted in the projections at a rate of 13%.

      Scenario #3 of the going-concern analysis assumes PSP9's properties are
  sold in a single transaction after a 10-year holding period.  Should the
  assets be liquidated over time, even at prices equal to those projected,
  distributions to PSP9 Shareholders out of PSP9's cash flow from operations
  might be reduced because relatively fixed costs, such as general and
  administrative expenses, are not proportionately reduced with the liquidation
  of assets.  However, for simplification purposes, the sales are assumed to
  occur concurrently.

      The estimated value of each of PSP9 and PSBP on a going-concern basis is
  not intended to reflect the distributions payable to each of their
  shareholders if their assets were to be sold at their current fair market
  values.

      Liquidation Values.  Since one of the alternatives available to the PSP9
  and PSBP Boards of Directors is to proceed with a liquidation of PSP9 and
  PSBP, and the corresponding distribution of the net liquidation proceeds to
  PSP9 and PSBP Shareholders, respectively, the PSP9 and PSBP Boards of
  Directors and Special Committees have estimated the liquidation value of PSP9
  and PSBP assuming that the real estate portfolios of these corporations were
  sold at their fair market value, based upon the Wilson real estate portfolio
  appraisals (excluding for these purposes any pre-merger distributions that
  might be made to PSP9 and PSBP Shareholders).  This alternative assumes non-
  real estate assets are sold at their book value (such assets, excluding cash,
  representing less than 2% of the value of each of PSP9 and PSBP), PSP9 and
  PSBP incur selling costs at the time of liquidation (state and local transfer
  taxes, real estate commissions and legal and other closing costs) of
  $2,320,000 and $568,000, respectively, and the remaining net liquidation
  proceeds are distributed among PSP9 and PSBP Shareholders in proportion to
  their share ownership.

      The liquidation analysis assumes that PSP9's portfolio is sold in a single
  transaction at its portfolio appraised value.  Should the assets be liquidated
  over time, even at prices equal to those projected, distributions to PSP9
  Shareholders out of PSP9's cash flow from operations might be reduced because
  PSP9's relatively fixed costs, such as general and administrative expenses,
  are not proportionately reduced with the liquidation of assets.  However, for
  simplification purposes, the sales are assumed to occur concurrently.

      Applying these procedures, the PSP9 and PSBP Boards of Directors and
  Special Committees arrived at the liquidation value set forth in the table.
  The real estate portfolio appraisals set forth, subject to the specified
  assumptions, limitations and qualifications, Wilson's professional opinion as
  to the market value of PSP9's and PSBP's real estate portfolios as of October
  31, 1995.  While the portfolio appraisals are not necessarily indicative of
  the price at which the assets would sell, market value generally seeks to
  estimate the prices at which the real estate assets would sell if disposed of
  in an arm's length transaction between a willing buyer and a willing seller,
  each having access to

                                       43
<PAGE>
 
  relevant information regarding the historical revenues and expenses of the
  properties.  The real estate portfolio appraisals assume that PSP9's and
  PSBP's assets are disposed of in an orderly manner and are not sold in forced
  or distressed sales where sellers might be expected to dispose of their
  interests at substantial discounts to their actual fair market value.  See "--
  Real Estate Appraisals by Wilson."

      Distribution Comparison.  The PSP9 and PSBP Boards of Directors and
  Special Committees have considered the potential impact of the Mergers upon
  distributions that would be made to PSP9 and PSBP Shareholders who exchange
  their PSP9 and PSBP Common Stock for PSI Common Stock.  Based on a market
  price of PSI Common Stock of $20 and the current regular quarterly
  distribution rate for PSI ($.22 per share) and PSP9 ($.30 per share), PSP9
  Shareholders would receive approximately $.095 (32%) less in regular quarterly
  distributions per share of PSP9 Common Stock after the Mergers from PSI than
  before the Mergers from PSP9 and approximately $.01 less per share in regular
  quarterly distributions for each increase in the market price of PSI Common
  Stock above $20 of $1.03 (5.2%).  These estimates are based upon the actual
  distributions made by PSP9 and PSI (not upon the amounts that might have been
  distributed by them based upon their cash flow from operations).  Based on a
  market price of $20 and the regular quarterly distribution rate for PSI ($.22
  per share) and PSBP ($.19 per share), PSBP Shareholders are not expected to
  receive less in regular quarterly distributions after the Mergers.

      In evaluating this estimate, PSP9 and PSBP Shareholders should bear in
  mind that a number of factors affect the level of distributions.  These
  factors include the distributable income generated by operations, the
  principal and interest payments on debt, if any, capital expenditure levels
  (in excess of normal expenditures for ongoing maintenance and repairs), and
  the corporate policy with respect to cash distributions.  A comparison of the
  current distribution levels of PSI with those of PSP9 and PSBP does not show
  how the Mergers might affect a PSP9 or PSBP Shareholder's distribution level
  over a number of years.

  Real Estate Portfolio Appraisals by Wilson

      Wilson was engaged by PSP9, PSBP and PSI to appraise the real estate
  portfolios of PSP9 and PSBP and has delivered written reports of its analysis,
  based upon the review, analysis, scope and limitations described therein, as
  to the fair market value of portfolio of properties of each of PSP9 and PSBP
  as of October 31, 1995 (the "Appraisals").  PSP9, PSBP and PSI selected Wilson
  to provide the Appraisals because of its experience and reputation in
  connection with appraising mini-warehouses and business parks, its familiarity
  with PSP9's and PSBP's properties and its appraisal of the properties of three
  other REITs in connection with their mergers with PSI.  The consideration to
  be paid by PSI to PSP9 and PSBP Shareholders in the Mergers is based on the
  Appraisals.  The Appraisals, which contain a description of the assumptions
  and qualifications made, matters considered and limitations on the review and
  analysis, are set forth as Appendix B-1 and B-2 and should be read in their
  entirety.  Certain of the material assumptions, qualifications and limitations
  to the Appraisals are described below.

      Experience of Wilson.  Wilson was founded by Charles R. Wilson in 1976,
  who has specialized in the appraisal of mini-warehouses since 1972.  Wilson
  has conducted real estate appraisals on a variety of property types and uses
  throughout the United States for owners, banks and thrift organizations,
  insurance companies and other financial institutions.  Wilson appraised over
  100 mini-warehouses in 1994.

      Mr. Wilson founded Self Storage Data Services, Inc. ("SSDS") in 1993 for
  the purpose of tracking and publishing income and expense trends in the mini-
  warehouse industry.  The SSDS data base now contains over 23,600 facilities
  nationwide.  Mr. Wilson, recognized as a leading authority on mini-warehouses,
  has spoken extensively and has written several articles on the subject of
  mini-warehouses.

      Summary of Methodology.  At the request of PSP9, PSBP and PSI, Wilson
  evaluated PSP9's and PSBP's portfolio of real estate.  In valuing the
  properties, Wilson considered the applicability of all three commonly
  recognized approaches to value:  the cost approach, the income approach and
  the sales comparison approach.  The type and age of a property, market
  conditions and the quantity and quality of data affect the applicability of
  each approach in a specific appraisal situation.  Wilson did not consider the
  cost approach to be applicable to PSP9's properties.

                                       44
<PAGE>
 
      The income approach estimates a property's capacity to produce income
  through an analysis of the rental market, operating expenses and net income.
  Net income may then be processed into a value estimate through either (or a
  combination) of two methods:  direct capitalization or yield capitalization,
  i.e., a discounted cash flow analysis.

      The sales comparison approach is based upon the principle of substitution,
  i.e., that an informed purchaser would pay no more for a property than the
  cost of acquiring an existing property with the same utility.  The sales
  comparison approach establishes what typical investors in the marketplace are
  willing to pay for comparable properties.

      The cost approach is based on the estimated market value of the site as if
  vacant plus the depreciated replacement cost of the existing improvements.
  The cost approach was not considered appropriate in the case of PSP9 since (a)
  today's investors do not rely upon the cost approach in making investment
  decisions, and (b) the necessity of estimating total accrued depreciation in
  buildings of the type and age of PSP9's properties diminishes the validity of
  this approach.

      While the Appraisals were prepared separately for PSP9's entire portfolio
  and for PSBP's sole property, Wilson analyzed the individual PSP9 properties
  by (a) reviewing each property's previous four years' operating statements,
  (b) reviewing information submitted to the appraiser by on-site managers which
  included competitive rental and occupancy surveys, subject facility
  descriptions, area trends and other factors, which were verified by Wilson
  through telephone calls and other sources; (c) developing information from a
  variety of sources about market conditions for each individual property that
  included population, employment and housing trends within the neighborhood;
  and (d) considering published data on median income and expense benchmarks on
  comparable facilities.

      To determine any significant differences in quality among the various
  properties, Wilson considered such variables as property income growth
  patterns and potential, quality of location and construction, tenant appeal,
  property appearance, security and potential competition.

      Wilson also interviewed management personnel responsible for PSP9's and
  PSBP's properties to discuss competitive conditions, area economic trends
  affecting the properties, historical operating revenues and expenses, and
  occupancy rates in competitive facilities.  These interviews included
  ascertaining information on items of deferred maintenance, planned capital
  improvements and other factors affecting the physical condition of the
  properties.  Wilson also reviewed surveys of local self storage and business
  park markets conducted by management.  Representatives of Wilson performed
  site inspections on all 15 of PSP9's properties and on PSBP's sole property
  between August and October, 1995.  Most of the properties had been appraised
  by Wilson previously.

      Wilson then determined the value of each property in the portfolio relying
  heavily upon the income approach.  The results were verified using a direct
  capitalization technique applying overall capitalization rates derived
  directly from the marketplace.  To define the occupancy and rental rates and
  expense escalators to be used in developing cash flow projections, Wilson
  reviewed the acquisition criteria and projection parameters in use in the
  marketplace by major mini-warehouse investors, owners and operators,
  appraisers and financing sources.  In addition, Wilson reviewed other
  published information concerning acquisition criteria in use by property
  investors during the third quarter of 1995.  Further, Wilson interviewed
  various sources in local markets to identify sales of mini-warehouses within
  the past 24 months in order to derive certain valuation indicators.  Sources
  for data concerning such transactions included local appraisers, property
  owners, real estate brokers, and others.  Wilson also reviewed information
  compiled by management identifying sales and acquisitions of mini-warehouses
  in local markets.

      In applying a discounted cash flow analysis, projections of cash flow from
  each property (assuming no indebtedness) were developed for a ten-year period
  ending October 2005.  The first year's scheduled gross income was estimated
  taking into consideration each property's current rent structure and the
  rental rates in competitive facilities.  Also included in the income estimate
  were trends in ancillary income from late fees and rental concessions.  Wilson
  then made an analysis of each subject's occupancy history, took into
  consideration the occupancy level of competitive facilities and estimated an
  occupancy level for each property in the portfolio.

      Estimated expenses were based upon each property's actual operating
  history as well as the actual experience of several other mini-warehouses and
  business parks within each given market.  Expenses were deducted from
  effective

                                       45
<PAGE>
 
  gross income to derive a net operating income for each property.
  Consideration was given to and adjustment made to reflect capital expenditures
  and replacement reserves.

      Income and expense growth rates were based on projection parameters
  currently being used by property investors as well as upon local, regional and
  historical trends.  Growth rates for income and expenses generally ranged from
  3% to 4% depending upon property and local market conditions.  Wilson then
  used terminal capitalization rates that ranged from 10.25% to 10.50% for PSP9
  and 11% for PSBP to capitalize each property's eleventh year net income into a
  residual value at the end of the holding period, assuming normal cost of
  disposing of the properties.  The ten yearly cash flows were then discounted
  to present worth using discount rates ranging from 12.5% to 13.5% for PSP9's
  properties, again depending upon local market and property conditions, and 12%
  for PSBP's property.  PSP9's properties having retail/office space were
  discounted using rates at the lower end of the indicated range to reflect
  current market conditions and parameters.  The indicated value based upon the
  income approach is $45,554,000 for PSP9's properties and $11,500,000 for
  PSBP's property.

      In applying the sales comparison approach to the PSP9 properties, Wilson
  analyzed over 100 properties which were sold during the past 24 months.  Using
  a regression analysis, a statistically significant correlation was derived
  between each of PSP9's properties' net income and its sales price per square
  foot.  Based upon the PSP9 portfolio's net income per square foot, using the
  regression analysis, the indicated value by the sales comparison approach
  ranged between $41,900,000 to $48,560,000 for PSP9's properties.  For PSBP's
  property, Wilson utilized a direct analysis and reconciliation of comparable
  sales in the local market of the property.  Based on such comparable sales
  analysis, the indicated value by the sales comparison approach is $11,300,000.

      Wilson also applied the cost approach to the property owned by PSBP in
  which Wilson estimated the replacement cost of land and improvements less
  depreciation.  Wilson assigned a market value to the PSBP property using the
  cost approach of $9,300,000.

      Based on the valuation methodology described above, Wilson assigned a
  market value of $45,400,000 to PSP9's portfolio of real property assets and
  $11,500,000 to PSBP's sole property.

      Assumptions, Limitations and Qualifications of the Appraisals.  The
  Appraisals reflect Wilson's valuation of PSP9's and PSBP's real estate
  portfolio as of October 31, 1995 in the context of the information available
  on such date.  Events occurring after October 31, 1995 and before the closing
  of the Mergers could affect the properties or assumptions used in preparing
  the Appraisals.  Wilson has no obligation to update the Appraisal on the basis
  of subsequent events; however, Wilson has informed PSP9, PSBP and PSI that, as
  of the date of this Joint Proxy Statement and Prospectus, Wilson is not aware
  of any event or change in conditions, since October 31, 1995, that may have
  caused a material change in the value of either PSP9's portfolio of real
  estate or PSBP's property since that date.

      The Appraisals are subject to certain general and specific assumptions and
  limiting conditions and are in conformity with the Departure Provision of
  Uniform Standards of Professional Appraisal Practice.  Among other
  limitations, the Appraisals (i) did not consider the effect of easements,
  restrictions and other similar items on the value of PSP9's and PSBP's
  properties, (ii) assumed that the properties comply with local building codes
  and zoning ordinances, (iii) did not involve the physical inspections of
  competing properties and (iv) did not involve a comparison of PSP9's
  properties' commercial leases with other properties' commercial leases (but
  did for PSBP's property's leases).  See Appendix B-1 and B-2 for a discussion
  of the specific assumptions, limitations and qualifications of the Appraisals.

      Compensation and Material Relationships.  Wilson is being paid an
  aggregate fee of $43,000 for preparation of the Appraisals, which fee will
  include reimbursement for all of Wilson's related out-of-pocket expenses.
  Wilson is also entitled to indemnification against certain liabilities.  The
  fee was negotiated with Wilson and payment is not dependent upon completion of
  the Mergers.  As one of the nation's leading appraisers of mini-warehouses,
  since 1976, Wilson has continuously prepared appraisals for PSI and its
  affiliates, including appraisals of the properties of three prior REITs in
  connection with their mergers with PSI, and is expected to continue to prepare
  appraisals for PSI.

  Fairness Opinions from Stanger

                                       46
<PAGE>
 
      Stanger was engaged by PSP9 and PSBP through the PSP9 and PSBP Special
  Committees to deliver written summaries of its determination as to the
  fairness of the consideration to be received in the Mergers, from a financial
  point of view, to the public shareholders of PSP9 and PSBP.  The full text of
  the opinions, which contain descriptions of the assumptions and qualifications
  made, matters considered and limitations on the review and opinion, is set
  forth in Appendix C-1 and C-2 to this Joint Proxy Statement and Prospectus and
  should be read in their entirety.  Certain of the material assumptions,
  qualifications and limitations to the fairness opinions are set forth below.
  The summary set forth below does not purport to be a complete description of
  the analyses to be used by Stanger in rendering the fairness opinions.
  Arriving at a fairness opinion is a complex analytical process not necessarily
  susceptible to partial analysis or amenable to summary description.

      Except for certain assumptions, described more fully below, which PSP9 and
  PSBP advised Stanger that it would be reasonable to make, they imposed no
  conditions or limitations on the scope of Stanger's investigation or with
  respect to the methods and procedures to be followed in rendering the fairness
  opinions.  PSP9 and PSBP have agreed to indemnify Stanger against certain
  liabilities arising out of its engagement to prepare and deliver the fairness
  opinions.

      Experience of Stanger.  Stanger, founded in 1978, has provided
  information, research, investment banking and consulting services to clients
  throughout the United States, including major New York Stock Exchange firms
  and insurance companies and over 70 companies engaged in the management and
  operation of partnerships and real estate investment trusts.  The investment
  banking activities of Stanger include financial advisory services, asset and
  securities valuations, industry and company research and analysis, litigation
  support and expert witness services, and due diligence investigations in
  connection with both publicly registered and privately placed securities
  transactions.

      Stanger, as part of its investment banking business, is regularly engaged
  in the valuation of businesses and their securities in connection with
  mergers, acquisitions, reorganizations and for estate, tax, corporate and
  other purposes.  In particular, Stanger's valuation practice principally
  involves partnerships, partnership securities and the assets typically owned
  through partnerships including, but not limited to, oil and gas reserves, real
  estate, cable television systems and equipment leasing assets.

      Summary of Materials Considered.  In the course of Stanger's analysis to
  render its opinions regarding the Mergers, Stanger:  (i) reviewed this Joint
  Proxy Statement and Prospectus; (ii) reviewed PSP9's, PSBP's and PSI's annual
  reports on Form 10-K for the three fiscal years ending December 31, 1992, 1993
  and 1994, their quarterly reports on Form 10-Q for the quarter ending
  September 30, 1995 and the pro forma financial statements of PSI; (iii)
  reviewed the Appraisals and discussed with management of PSP9 and PSBP and
  Wilson the methodologies and procedures employed in preparing the Appraisals;
  (iv) reviewed information regarding purchases and sales of self-storage
  properties by PSI or any affiliated entities over the past two years, and
  other information available relating to acquisition criteria for self-storage
  properties and business parks; (v) reviewed estimates prepared by PSP9 and
  PSBP, and based in part on the Appraisals, of the current net liquidation
  value per common share of PSP9's and PSBP's assets and projections of cash
  flow from operations, dividend distributions and going-concern values for PSP9
  and PSBP; (vi) discussed with certain members of management of PSP9, PSBP and
  PSI conditions in self-storage and business park property markets, conditions
  in the market for sales/acquisitions of properties similar to those owned by
  PSP9 and PSBP, current and projected operations and performance, and the
  financial condition and future prospects of PSP9, PSBP and PSI; (vii) reviewed
  historical market prices, trading volume and dividends for PSP9, PSBP and PSI
  Common Stock; and (viii) conducted other studies, analyses, inquiries and
  investigations as Stanger deemed appropriate.

      Summary of Analysis.  The following is a summary of certain financial and
  comparative analyses reviewed by Stanger in connection with and in support of
  its fairness opinions.  The summary of the opinions and analysis of Stanger
  set forth in this Joint Proxy and Prospectus is qualified in its entirety by
  reference to the full text of such opinions.

      Review of Appraisals.  In preparing its opinions, Stanger relied upon the
  Appraisals of PSP9's and PSBP's portfolio of properties which were prepared as
  of October 31, 1995 by Wilson, an independent appraiser.  Stanger reviewed the
  Appraisals rendered by Wilson, reviewed a sample of supporting documentation
  for the Appraisals and discussed with Wilson its experience and qualifications
  and the appraisal methodologies utilized.

                                       47
<PAGE>
 
      Stanger observed that the Appraisals were certified by a Member of the
  Appraisal Institute and were conducted utilizing the income approach to
  valuation, applying the discounted cash flow method to establish a value for
  each individual property, the sales comparison approach and, in the case of
  PSBP, the cost approach.  In addition, Stanger observed that in the course of
  conducting the Appraisals, Wilson confirmed certain parameters utilized based
  upon interviews conducted by Wilson of major buyers, owners and managers of
  self-storage and business park properties, and data collected by Wilson
  relating to capitalization rates and net operating income per square foot for
  actual sales transactions in the marketplace for mini-warehouse and business
  park properties which occurred during the 24 months preceding the date of the
  Appraisals.

      Stanger observed that the effective capitalization rate utilized in the
  Appraisals was approximately 10.1% and 9.5% for the properties of PSP9 and
  PSBP, respectively, based on net operating income (before non-recurring
  expenses) generated for the 12 months prior to the date of the Appraisals.
  Stanger further observed that among properties acquired by PSI or affiliated
  entities from third-parties between December 1993 and November 1995,
  capitalization rates for such purchases averaged approximately 10.1%.  In
  addition, capitalization rates among transactions involving self-storage
  properties tracked by Self Storage Data Services, Inc., an affiliate of
  Wilson, averaged approximately 10.5%.  Lower capitalization rates generally
  reflect higher sales prices for income-producing properties.

      Review of Liquidation Analysis.  Stanger reviewed an analysis prepared by
  management of PSP9 and PSBP of the estimated value of PSP9 and PSBP based upon
  liquidation of their portfolios on a property-by-property basis utilizing
  estimates prepared by PSP9 and PSBP and information provided by Wilson.

      The property-by-property liquidation analysis assumed each property could
  be sold within an estimated marketing period of six months at the appraised
  value as reported in the Appraisals, to an independent third-party buyer.
  Costs of such property sales by PSP9 to independent third-parties were
  estimated by PSP9 to total approximately $2,320,000 and were comprised of
  estimates of $310,000 in state and local transfer taxes, $1,340,000 in
  commissions and $670,000 in legal and other closing costs.  Costs of such
  property sales by PSBP to independent third-parties were estimated by PSBP to
  total approximately $568,000 and were comprised of estimates of $51,000 in
  state and local transfer taxes, $345,000 in commissions and $172,000 in legal
  and other closing costs.  Such amounts were based on prevailing transfer tax
  rates in the locale of each property and on estimates of PSP9 and PSBP based
  on their knowledge of real estate transactions.  Stanger observed that the
  estimated net proceeds from such liquidation, assuming no Required PSP9 REIT
  Distributions (prior to the date of liquidation), the contribution of $599,000
  by PSI and Hughes in respect of obligations due upon liquidation incurred in
  connection with the PSP9 Partnership, and the associated dissolution of PSP9
  and distribution of all remaining assets was $17.39 per share, versus the
  consideration offered in the Mergers of $18.64 cash per share of PSP9 Common
  Stock, or the equivalent of $18.64 of PSI Common Stock per share of PSP9
  Common Stock, based on the average closing price of PSI Common Stock on the
  NYSE during the 20 consecutive trading days ending on the fifth trading day
  prior to the meeting of PSP9 Shareholders.  Stanger observed that the
  estimated net proceeds from the liquidation of PSBP's sole property, assuming
  no Required PSBP REIT Distributions (prior to the date of liquidation), and
  the associated dissolution of PSBP and distribution of all remaining assets
  was $18.53 per share, versus the consideration offered in the Mergers of
  $19.59 cash per share of PSBP Common Stock, or the equivalent of $19.59 of PSI
  Common Stock per share of PSBP Common Stock, based on the average closing
  price of PSI Common Stock on the NYSE during the 20 consecutive trading days
  ending on the fifth trading day prior to the meeting of PSBP Shareholders.

      Stanger also observed that Wilson concluded that no premium or discount is
  appropriate for the bulk acquisition of an assembled portfolio in self-storage
  property markets today.  Stanger reviewed information on bulk purchases and
  sales of self-storage properties transacted by PSI, PSMI or affiliates during
  1993 through November 1995 and reviewed available information concerning bulk
  purchases of self-storage properties by independent third parties.

      Stanger observed that PSI, PSMI or affiliated entities have transacted
  seven bulk purchases of property portfolios during the period reviewed
  excluding the properties associated with the mergers of three prior REITs with
  PSI.  These transactions involved affiliated entities and a total of 33
  properties with an aggregate value of approximately $75 million.
  Specifically, the transactions included the sale of:  (1) a three-property
  portfolio by a private limited partnership affiliated with PSMI in November
  1993 (at a capitalization rate of approximately 10.2%); (2) a twelve-

                                       48
<PAGE>
 
  property portfolio in which PSMI has an interest by an unaffiliated party in
  December 1993 (at a capitalization rate of approximately 10.5% for the owner's
  interest); (3) a three-property portfolio in which PSMI has an interest by an
  unaffiliated party in December 1993 (at a capitalization rate of approximately
  10.5% for the owner's interest); (4) a two-property portfolio by a private
  limited partnership affiliated with PSMI in October 1993 (at a capitalization
  rate of approximately 10.7%); (5) a seven-property portfolio by a private
  limited partnership affiliated with PSMI in June 1994 (at a capitalization
  rate of approximately 10.7%); (6) a three-property portfolio by a private
  limited partnership affiliated with PSMI in June 1994 (at a capitalization
  rate of approximately 10.1%); and (7) a three-property portfolio by a private
  limited partnership affiliated with PSMI in December 1994 (at a capitalization
  rate of approximately 10.0%).  Among these transactions, capitalization rates
  averaged approximately 10.4%.  Stanger also observed that capitalization rates
  currently cited by market participants for bulk property sales transactions
  generally range from 10% to 11%, a range consistent with capitalization rates
  for individual property purchases.

      Based upon the review cited above, Stanger concluded that Wilson's opinion
  that assembled portfolios do not command a premium to underlying individual
  property values in the current market for self-storage property acquisitions
  appears to be supported by available data.

      Review of Going Concern Analysis.  Stanger reviewed financial analyses and
  projections prepared by the management of PSP9 and PSBP concerning estimated
  cash flows and dividend distributions from continued operation of PSP9 and
  PSBP as independent stand-alone entities and estimated sales proceeds from the
  liquidation of the shares of PSP9 and PSBP or the portfolios of properties
  owned by PSP9 and PSBP.  The analyses incorporated estimates of revenues and
  operating expenses for each of the properties, capital expenditures, entity-
  level general and administrative costs, and cash flow distributions and
  proceeds from sale of either the securities of PSP9 and PSBP or the properties
  owned by PSP9 and PSBP during projection periods of up to 10 years.  The
  analyses and projections assumed, among other things, that (i) net operating
  income for PSP9 and PSBP would grow at a compound annual rate of approximately
  3.7% over the 10-year projection period; (ii) general and administrative
  expenses would increase at an average rate of 3.0% per annum over the
  projection period; and (iii) in the scenario involving sale of the properties
  in private real estate markets (as described below), such sales would occur at
  the terminal value projected by the appraiser in the independent Appraisals.

      The projections evaluated the going-concern value of PSP9 and PSBP under
  three scenarios:  Scenario #1 --a five-year holding period, with shares of
  PSP9 and PSBP Common Stock liquidated in securities markets at an FFO multiple
  ranging from 8.5 to 10.5; Scenario #2 -- a 10-year holding period, with shares
  of PSP9 Common Stock and PSBP Common Stock liquidated in securities markets at
  an FFO multiple ranging from 8.5 to 10.5; and Scenario #3 --a 10-year holding
  period with the property portfolio of PSP9 and PSBP liquidated in private real
  estate markets at the terminal value projected by the appraiser in the
  Appraisals and the net proceeds resulting from the liquidation of the
  properties and other remaining assets of PSP9 and PSBP paid out to
  shareholders in liquidating distributions.  Dividends and sale proceeds per
  share of PSP9 and PSBP Common Stock were discounted in the projections at a
  rate of 13%.

      Stanger observed that the FFO multiples utilized by management in the
  projections were consistent with current FFO multiples among publicly traded
  REITs investing in self-storage facilities and business parks and with market
  capitalization and leverage levels reasonably comparable to those of PSP9 and
  PSBP.  This group of publicly traded REITs are all affiliated with PSMI and
  PSI, and include Storage Properties, Partners Preferred Yield I, II and III,
  and Public Storage Properties X, XI, XII, XIV, XV, XVI, XVII, XVIII, XIX, and
  XX.  Stanger further observed that the discount rates applied to dividends and
  sale proceeds were consistent with the historic rates of return produced by
  equity REITs.

      Stanger further observed that the estimated values per share of PSP9 and
  PSBP Common Stock on a going-concern basis resulting from the above analysis
  were as follows for each scenario:  Scenario #1 -- $15.78 to $18.04 and $15.37
  to $17.74, respectively; Scenario #2 -- $16.49 to $17.93 and $16.28 to $17.83,
  respectively; and Scenario #3 -- $17.60 and $16.93, respectively, compared
  with the consideration offered in the Mergers of $18.64 per share of PSP9
  Common Stock and $19.59 per share of PSBP Common Stock.

      The estimated values assigned to the alternative forms of consideration
  are based on a variety of assumptions that have been made by PSP9 and PSBP.
  While PSP9 and PSBP have advised Stanger that they believe they have a

                                       49
<PAGE>
 
  reasonable basis for these assumptions, these assumptions may not reflect the
  actual experience of PSP9 and PSBP and such differences could be material.
  See "-- Comparison of Consideration to be Received in the Mergers to Other
  Alternatives."

      Review of Market Value.  Stanger reviewed historical market prices,
  trading volume and dividend distributions for PSP9 Common Stock and PSBP
  Common Stock.  In the course of this review, Stanger compared the historical
  market prices of PSP9 and PSBP Common Stock with amounts to be received at the
  time of the Mergers.  Stanger observed that the trading price for PSP9 Common
  Stock averaged $16.90, $16.82, $16.92 and $16.93, for the respective 20-day,
  60-day, 180-day, and 360-day periods preceding the announcement of the
  proposed Mergers, that the closing price for PSP9 Common Stock on the last
  trading day prior to the first announcement of the proposed Mergers was $20-
  1/4, and that the highest closing price for PSP9 Common Stock preceding the
  announcement of the proposed Mergers was $17-1/8.  Stanger further observed
  that the consideration offered in the Mergers, reduced by $1,294,000, or
  approximately $.53 per share (which amount represents increases in current net
  assets projected by management to be generated and retained between the date
  of the Appraisals and March 31, 1996) represents a premium of 7.17%, 7.68%,
  7.04%, 6.98%, 5.76% and (10.56)% over the 20-day, 60-day, 180-day, 360-day
  average closing prices and the closing price on the last trading day prior to
  the announcement of the proposed Mergers and the highest closing price
  recorded for PSP9 Common Stock, respectively.  Stanger observed that the
  trading price for PSBP Common Stock averaged $17.69, $17.49, $17.60 and
  $16.76, for the respective 20-day, 60-day, 180-day, and 360-day periods
  preceding the announcement of the proposed Mergers, that the closing price for
  PSBP Common Stock on the last trading day prior to the first announcement of
  the proposed Mergers was $17-3/8, and that the highest closing price for PSBP
  Common Stock preceding the announcement of the proposed Mergers was $18-5/8.
  Stanger further observed that the consideration offered in the Mergers,
  reduced by $194,000, or approximately $.36 per share (which amount represents
  increases in current net assets projected by management to be generated and
  retained between the date of the Appraisals and March 31, 1996) represents a
  premium of 8.69%, 9.93%, 9.24%, 14.72%, 10.66% and 3.23% over the 20-day, 60-
  day, 180-day, 360-day average closing prices and the closing price on the last
  trading day prior to the announcement of the proposed Mergers and the highest
  closing price recorded for PSBP Common Stock, respectively.

      In addition, Stanger observed that the consideration per share of PSP9 and
  PSBP Common Stock offered in the Mergers in the form of shares of PSI Common
  Stock will reflect values established in public securities trading markets
  equivalent to the cash offer per share of PSP9 and PSBP Common Stock.  Such
  value will be based on the average closing prices on the NYSE of PSI Common
  Stock during the twenty consecutive trading days ending on the fifth trading
  day prior to the special meeting of shareholders.

      Distribution/FFO Analysis.  Stanger reviewed distributions per share and
  FFO per share for PSP9 and PSBP Shareholders on an equivalent per share basis.
  Stanger noted that based on a closing price of $20 for PSI Common Stock and
  the resulting exchange ratio of PSP9 and PSBP Common Stock for PSI Common
  Stock and based on operating results for PSI (pro forma the PSMI Merger),
  regular quarterly distributions per share would decrease by approximately
  $.095 (32%) for PSP9 Shareholders receiving PSI Common Stock and would
  increase by approximately $.025 (13%) for PSBP Shareholders receiving PSI
  Common Stock.  Stanger observed that, at the $20 closing price for PSI Common
  Stock and based on operating results for PSI (pro forma the PSMI Merger), FFO
  per share on a quarterly basis earned by PSP9 Shareholders on an equivalent
  per share basis would decrease approximately $.048 (10%), and FFO per share
  earned by PSBP Shareholders on an equivalent per share basis would decrease
  approximately $.008 (1.7%).  Stanger also observed that the historical FFO per
  share annual growth rate for PSI for the 1992-1994 period was 11.81% compared
  to the historical FFO per share annual growth rate for PSP9 and PSBP for the
  1992-1994 period of 8.2% and a negative 4.9%, respectively.

      Conclusions.  Based on the foregoing, Stanger concluded that, based upon
  its analysis and assumptions, and as of the date of the fairness opinions, the
  consideration to be received in the Mergers is fair to the public shareholders
  of PSP9 and PSBP, from a financial point of view.

      Assumptions.  In evaluating the Mergers, Stanger relied upon and assumed,
  without independent verification, the accuracy and completeness of all
  financial and other information contained in the Joint Proxy Statement and
  Prospectus or that was furnished or otherwise communicated to Stanger.
  Stanger did not perform an independent

                                       50
<PAGE>
 
  appraisal of the assets and liabilities of PSP9, PSBP or PSI and relied upon
  and assumed the accuracy of the Appraisals.  Stanger also relied on the
  assurances of PSP9, PSBP and PSI that any pro forma financial statements,
  projections, budgets, or value estimates contained in the Joint Proxy
  Statement and Prospectus or otherwise provided to Stanger, were reasonably
  prepared on bases consistent with actual historical experience and reflecting
  the best currently available estimates and good faith judgments; that no
  material changes have occurred in the appraised value of the portfolio or the
  information reviewed between the date of the Appraisals or the date of the
  other information provided and the date of the opinion; and that PSP9, PSBP
  and PSI are not aware of any information or facts that would cause the
  information supplied to Stanger to be incomplete or misleading in any material
  respect.

      In connection with preparing the fairness opinion, Stanger was not engaged
  to, and consequently did not, prepare any written report or compendium of its
  analysis for internal or external use beyond the analysis set forth in
  Appendix C-1 and C-2.  Stanger does not intend to deliver any additional
  written summary of the analysis.

      Compensation and Material Relationships.  For preparing the fairness
  opinion and related services in connection with the Mergers, Stanger is being
  paid a fee of $90,000.  In addition, Stanger will be reimbursed for certain
  out-of-pocket expenses, including legal fees, up to a maximum of $18,000 and
  will be indemnified against certain liabilities, including certain liabilities
  under the federal securities laws.  The fee was negotiated with Stanger.
  Payment of the fee to Stanger is not dependent upon completion of the Mergers.
  During the past two years (1993 to present), Stanger has rendered consulting
  and related services and provided products to PSI and to PSMI and its
  affiliates, including a fairness opinion to the public shareholders of three
  REITs in connection with their mergers with PSI and an analysis used in a 1992
  exchange offer involving PSI and three partnerships affiliated with PSMI, and
  may be engaged in the future.  Stanger has received compensation aggregating
  approximately $185,000 in connection with these services and products since
  1993 (exclusive of amounts received in connection with the Mergers).

      Limitations and Qualifications.  Stanger was not requested to, and
  therefore did not:  (i) select the method of determining the consideration
  offered in the Mergers; (ii) make any recommendation to the shareholders of
  PSP9, PSBP or PSI with respect to whether to approve or reject the Mergers or
  whether to select the cash or Common Stock option in the Mergers; or (iii)
  express any opinion as to the business decision to effect the Mergers,
  alternatives to the Mergers or tax factors resulting from the PSMI Merger or
  relating to PSI's continued qualification as a REIT.  Stanger's opinion is
  based on business, economic, real estate and securities markets, and other
  conditions as of the date of its analysis.

      Among the factors considered in the selection of Stanger were Stanger's
  experience in connection with the mergers of three REITs with PSI, its
  expertise in real estate transactions and the fee quoted by Stanger.  No party
  other than Stanger was contacted to render an opinion as to the fairness of
  the Mergers to PSP9 and PSBP Shareholders, and PSP9 and PSBP have neither
  requested nor received any views, preliminary or otherwise, from any party
  other than Stanger regarding the fairness of the Mergers to PSP9 and PSBP
  Shareholders.

  The Merger Agreement

      If the Mergers are approved by PSP9 and PSBP Shareholders and the other
  applicable conditions to the Mergers are satisfied or waived, the Mergers will
  be consummated pursuant to the Merger Agreement which is set forth in Appendix
  A to, and is incorporated by reference into, this Joint Proxy Statement and
  Prospectus.  As a result of the Mergers, all of the assets now held by PSP9
  and PSBP will be held by PSI upon completion of the Mergers.  The Merger
  Agreement contains representations and warranties of PSP9, PSBP and PSI and
  certain other provisions relating to the Mergers.  The representations and
  warranties are extinguished by, and do not survive, the Mergers.  The PSP9
  Merger and the PSBP Merger are not conditioned on each other.

      Conditions to Consummation of the Mergers.  Consummation of the Mergers
  are contingent upon standard conditions, including the following:  (i) the
  Registration Statement shall have been declared effective by the Commission
  and PSI shall have received all other authorizations necessary to issue PSI
  Common Stock in exchange for PSP9 and PSBP Common Stock and to consummate the
  Mergers; (ii) the Merger Agreement and the PSP9 Merger shall have been
  approved and adopted by the requisite vote of the shareholders of PSP9,
  including a majority of the shares of PSP9 Common Stock voting at the meeting
  of PSP9 Shareholders which are not owned by PSI and its affiliates; (iii)

                                       51
<PAGE>
 
  the Merger Agreement and the PSBP Merger shall have been approved and adopted
  by the requisite vote of the shareholders of PSBP, including a majority of the
  shares of PSBP Common Stock voting at the meeting of PSBP Shareholders which
  are not owned by PSI and its affiliates; (iv) receipt by PSP9 and PSBP of a
  legal opinion of Hogan & Hartson L.L.P. that the Mergers will qualify as
  reorganizations under Section 368(a) of the Code (which opinion has been
  received and is described under "Certain Federal Income Tax Matters"); (v) the
  PSI Shares issued to PSP9 and PSBP Shareholders shall be listed on the NYSE;
  (vi) the Boards of Directors of PSP9 and PSBP shall have received fairness
  opinions from Stanger (which opinions have been received); (vii) the Board of
  Directors of PSI shall have approved the Mergers; (viii) in the case of PSI,
  the average of the per share closing prices on the NYSE of the PSI Common
  Stock during the 20 consecutive trading days ending on the fifth trading day
  prior to the special meeting of PSP9 and PSBP Shareholders is not less than
  $18; and (ix) demands for payment by holders of Dissenting Shares are filed
  with respect to less than 5% of the outstanding shares of common stock of the
  respective corporation.  The obligation of PSI to effect the Mergers are also
  subject to it, in its sole discretion, being satisfied as to title to, and the
  results of an environmental audit of, each property of PSP9 and PSBP.  Any of
  these conditions (other than the conditions of approval by the PSP9 and PSBP
  Shareholders) may be waived by the board of directors of the corporation
  benefiting from such condition.

      Amendment or Termination.  The Merger Agreement provides for amendment or
  modification thereof by written agreement authorized by the boards of
  directors of PSP9, PSBP and PSI either before or after shareholder approval,
  provided that any such amendment or modification made after shareholder
  approval does not change any of the principal terms of the Mergers or the
  Merger Agreement.  The Mergers may be abandoned at any time before or after
  shareholder approval by mutual written consent and may be abandoned by the
  action of the board of directors of either party if, among other things, the
  closing of the Mergers shall not have occurred on or before December 31, 1996.

      Consummation.  It is contemplated that the Mergers will be consummated by
  filing the Agreements of Merger (attached as Exhibits A-1 and A-2 to the
  Merger Agreement) with the California Secretary of State as soon as
  practicable after its approval by PSP9 and PSBP Shareholders and the
  satisfaction or waiver of various conditions contained in the Merger
  Agreement.  It is currently contemplated that the Mergers will be consummated
  during the first half of 1996.  If the conditions to the merger of only one of
  the corporations into PSI are satisfied, only that corporation will be merged
  with PSI.

      Exchange of Certificates.  After the Mergers, holders of certificates that
  evidenced outstanding shares of PSP9 and PSBP Common Stock that were converted
  into shares of PSI Common Stock, upon surrender of the certificates to The
  First National Bank of Boston (the "Exchange Agent"), shall be entitled to
  receive certificates representing the number of whole shares of PSI Common
  Stock into which the shares of common stock shall have been converted and cash
  payment in lieu of fractional share interests, if applicable.  As soon as
  practicable after the Mergers, the Exchange Agent will send a notice and a
  transmittal form to each holder of record whose common stock shall have been
  converted into shares of PSI Common Stock, advising of the effectiveness of
  the Mergers and the procedure for surrendering to the Exchange Agent
  certificates evidencing PSP9 or PSBP Common Stock in exchange for certificates
  evidencing PSI Common Stock.  HOLDERS OF PSP9 AND PSBP COMMON STOCK WHO INTEND
  TO RECEIVE PSI COMMON STOCK IN THE MERGERS SHOULD NOT SUBMIT THEIR STOCK
  CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER OF TRANSMITTAL
  AND INSTRUCTIONS FROM THE EXCHANGE AGENT WHICH WILL BE MAILED AFTER
  CONSUMMATION OF THE MERGERS.

      Until surrendered, each outstanding certificate which represents shares of
  PSP9 or PSBP Common Stock that were converted into shares of PSI Common Stock
  will be deemed for all corporate purposes to evidence ownership of the number
  of whole shares of PSI Common Stock into which the common stock evidenced
  thereby were converted.  However, until the certificates formerly evidencing
  PSP9 and PSBP Common Stock are surrendered, no dividend payable to holders of
  record of the PSI Common Stock shall be paid to the holders of such
  certificates, but upon surrender of the certificates by the holders they will
  be entitled to receive the dividends (without interest) previously paid with
  respect to such PSI Common Stock as of any record date on or subsequent to the
  effectiveness of the Mergers.  After the Mergers, there will be no further
  registration of transfers of PSP9 and PSBP Common Stock on

                                       52
<PAGE>
 
  the records of PSP9 and PSBP and, if certificates formerly evidencing such
  shares are presented, they will be cancelled and exchanged for certificates
  evidencing PSI Common Stock.

      Fractional Shares.  No fractional shares of PSI Common Stock will be
  issued in the Mergers.  In lieu of any fractional share interests, each holder
  of PSP9 and PSBP Common Stock who would otherwise be entitled to a fractional
  share of PSI Common Stock will, upon surrender of the certificate representing
  such common stock, receive a whole share of PSI Common Stock if such
  fractional share to which such holder would otherwise have been entitled is .5
  of a share or more, and such fractional share shall be disregarded if it
  represents less than .5 of a share; provided that such fractional share shall
  not be disregarded if it represents .5 of 1% or more of the total number of
  shares of PSI Common Stock such holder is entitled to receive in the Mergers.
  In such event, the holder will be paid an amount in cash (without interest),
  rounded to the nearest $.01, determined by multiplying (i) the per share
  closing price on the NYSE of the PSI Common Stock at the time of effectiveness
  of the Mergers, by (ii) the fractional interest.

      Restrictions on Other Acquisitions.  PSP9 and PSBP have agreed not to
  initiate, solicit or encourage, directly or indirectly, any inquiries or the
  making of any proposal with respect to a merger, consolidation, share exchange
  or similar transaction involving them, or any purchase of all or any
  significant portion of their assets, or any equity interest in them, other
  than the transactions contemplated by the Merger Agreement, or engage in any
  negotiations concerning, or provide any confidential information or data to,
  or have discussions with, any person relating to such a proposal, provided
  that the boards of directors on behalf of PSP9 and PSBP may furnish or cause
  to be furnished information and may participate in such discussions and
  negotiations through its representatives with persons who have sought the same
  if the failure to provide such information or participation in the
  negotiations and discussions might cause the members of the boards of
  directors to breach their fiduciary duty to PSP9 and PSBP Shareholders under
  applicable law as advised by counsel.  PSP9 and PSBP have agreed to notify PSI
  immediately if inquiries or proposals are received by, any such information is
  requested from, or negotiations or discussions are sought to be initiated or
  continued with them, and to keep PSI informed of the status and terms of any
  such proposals and any such negotiations or discussions.

      Distributions.  Pending the Mergers, PSP9 and PSBP are precluded from
  declaring or paying any dividend on their common stock or making any other
  distribution to their shareholders other than (i) regular dividends at a
  quarterly rate not in excess of $.30 per share in the case of PSP9 and $.19
  per share in the case of PSBP, (ii) dividends to shareholders of record of
  PSP9 and PSBP immediately prior to the effectiveness of the Mergers equal to
  the amount by which the respective corporation's estimated net asset value at
  such date exceeds the estimated net asset value at March 31, 1996 and (iii)
  Required REIT Distributions.  Pending the Mergers, PSI is precluding from
  declaring or paying any dividend on its common stock or making any other
  distribution to its shareholders other than regular quarterly dividends.  See
  "Determination of Payments to be Received by PSP9 and PSBP Shareholders in
  Connection with the Mergers."

  Cash Election Procedure

      PSP9.  Each holder of record of PSP9 Common Stock may make a Cash Election
  and have its shares of PSP9 Common Stock converted into the right to receive
  cash in the PSP9 Merger.  If the aggregate number of shares of PSP9 Common
  Stock as to which Cash Elections are made, together with shares of PSP9 Common
  Stock owned by Dissenting Shareholders (see "Dissenting Shareholders' Rights
  of Appraisal"), is 20% or less than the number of shares of PSP9 Common Stock
  outstanding as of the record date for the meeting of PSP9 Shareholders, all
  such shares as to which Cash Elections are made shall be converted into the
  right to receive cash in the PSP9 Merger.  If the aggregate number of such
  shares (together with any PSP9 Dissenting Shares) is more than 20%, such
  shares shall be converted into the right to receive cash in the PSP9 Merger on
  a pro rata basis, and the balance of such shares shall be converted into PSI
  Common Stock.  For a discussion of the federal income tax consequences to PSP9
  Shareholders receiving both cash and PSI Common Stock in connection with the
  PSP9 Merger, see "Certain Federal Income Tax Matters -- The Mergers -- PSP9
  and PSBP Shareholders Receiving Cash and PSI Common Stock."

      PSBP.  Each holder of record of PSBP Common Stock may make a Cash Election
  and have its shares of PSBP Common Stock converted into the right to receive
  cash in the PSBP Merger.  If the aggregate number of shares of PSBP Common
  Stock as to which Cash Elections are made, together with shares of PSBP Common
  Stock owned by

                                       53
<PAGE>
 
  Dissenting Shareholders (see "Dissenting Shareholders' Rights of Appraisal"),
  is 20% or less than the number of shares of PSBP Common Stock outstanding as
  of the record date for the meeting of PSBP Shareholders, all such shares as to
  which Cash Elections are made shall be converted into the right to receive
  cash in the PSBP Merger.  If the aggregate number of such shares (together
  with any PSBP Dissenting Shares) is more than 20%, such shares shall be
  converted into the right to receive cash in the PSBP Merger on a pro rata
  basis, and the balance of such shares shall be converted into PSI Common
  Stock.  For a discussion of the federal income tax consequences to PSBP
  Shareholders receiving both cash and PSI Common Stock in connection with the
  PSBP Merger, see "Certain Federal Income Tax Matters -- The Mergers -- PSP9
  and PSBP Shareholders Receiving Cash and PSI Common Stock."

      All Cash Elections are to be made on a cash election form (a "Cash
  Election Form").  Holders of record of shares of PSP9 and PSBP Common Stock
  who hold such shares as nominees, trustees or in other representative
  capacities (a "Representative") may submit multiple Cash Election Forms,
  provided that such Representative certifies that each such Cash Election Form
  covers all the shares of PSP9 and PSBP Common Stock held by such
  Representative for a particular beneficial owner.  Any Cash Election Form may
  be revoked by written notice received by American Stock Transfer & Trust
  Company (The "Depositary") prior to 5:00 p.m., New York time, on the last
  business day before the day of the meeting of shareholders.  In addition, all
  Cash Election Forms will automatically be revoked if the Depositary is
  notified in writing that the Mergers have been abandoned.

      If a PSP9 or PSBP Shareholder does not properly complete and return the
  Cash Election Form, he or she will receive PSI Common Stock in the Mergers.  A
  PSP9 or PSBP Shareholder may not make a Cash Election as to less than all of
  the shares of the respective corporation's common stock owned by such
  shareholder.  A Cash Election Form is being sent to PSP9 and PSBP Shareholders
  of record on _______________, 1996.  To be effective, a Cash Election Form
  must be properly completed and signed and must be received by the Depositary
  accompanied by all stock certificates representing shares of PSP9 or PSBP
  Common Stock held by the person submitting such Cash Election Form to which
  the Cash Election Form relates (or by a guarantee of delivery of such
  certificates in the form and on the terms set forth in the Cash Election Form
  (a "Guaranteed Delivery")) no later than 5:00 p.m. New York City Time on
  _______________, 1996.  If a Cash Election Form is properly revoked, the
  certificate or certificates (or any guarantee of delivery) in respect of the
  PSP9 or PSBP Common Stock to which the Cash Election Form relates will be
  promptly returned by the Depositary.  The Depositary may determine whether or
  not elections to receive cash have been properly made or revoked, and any such
  determination shall be conclusive and binding.

      HOLDERS OF SHARES OF PSP9 AND PSBP COMMON STOCK THAT WISH TO SUBMIT A CASH
  ELECTION FORM SHOULD DELIVER THEIR STOCK CERTIFICATES WITH SUCH CASH ELECTION
  FORM OR PROVIDE FOR, AND COMPLY WITH THE REQUIREMENTS OF, GUARANTEED DELIVERY.

      ANY HOLDER OF PSP9 OR PSBP COMMON STOCK WHO DOES NOT SUBMIT A PROPERLY
  COMPLETED AND SIGNED CASH ELECTION FORM ACCOMPANIED BY THE APPLICABLE STOCK
  CERTIFICATES (OR PROVIDE FOR, AND COMPLY WITH THE REQUIREMENTS OF, GUARANTEED
  DELIVERY) WHICH IS RECEIVED BY THE DEPOSITARY PRIOR TO 5:00 P.M., NEW YORK
  CITY TIME, ON _______________, 1996 WILL RECEIVE PSI COMMON STOCK IN THE
  MERGERS.  IF PSI OR THE DEPOSITARY DETERMINES THAT ANY PURPORTED CASH ELECTION
  WAS NOT PROPERLY MADE, SUCH PURPORTED CASH ELECTION WILL BE DEEMED TO BE OF NO
  FORCE AND EFFECT AND THE HOLDERS OF PSP9 OR PSBP COMMON STOCK MAKING SUCH
  PURPORTED CASH ELECTION WILL, FOR PURPOSES HEREOF, RECEIVE PSI COMMON STOCK IN
  THE MERGERS.  NEITHER PSI, PSP9, PSBP NOR THE DEPOSITARY WILL BE UNDER ANY
  OBLIGATION TO NOTIFY ANY PERSON OF ANY DEFECT IN A CASH ELECTION FORM.

      The tax consequences of receiving cash and/or PSI Common Stock are
  different.  See "Certain Federal Income Tax Matters -- The Mergers."

  Consequences to PSP9 and PSBP if the Mergers are Not Completed

      If the Mergers are not completed with respect to either PSP9 or PSBP, such
  corporation will remain as a separate legal entity and will continue to
  operate its properties.

                                       54
<PAGE>
 
   Costs of the Mergers

      It is estimated that the total consideration (cash and Common Stock) to be
  paid by PSI to purchase all of the PSP9 and PSBP Common Stock in the Mergers
  and to pay related costs and expenses would be $57,540,700 (less the amount of
  any Required REIT Distributions) and that the total amount of funds that would
  be required by PSI to purchase the PSP9 and PSBP Common Stock from
  shareholders making Cash Elections and to pay the cost and expenses of the
  Mergers would be $12,672,100 (assuming maximum Cash Elections and no Required
  REIT Distributions).  These amounts will be paid with funds borrowed under
  credit facilities with a group of banks for which Wells Fargo Bank, National
  Association acts as agent.  These credit facilities aggregate $125,000,000 and
  bear interest at LIBOR plus .75% to 1.25%.  PSI intends to repay amounts
  borrowed under these facilities from the public or private placement of
  securities or from PSI's undistributed cash flow.

      If the Mergers are not completed, all costs incurred in connection with
  the Mergers will be paid by the party incurring such costs, except that PSI
  will pay one-half of the cost of any expenses incurred in connection with the
  printing of this Joint Proxy Statement and Prospectus and related registration
  statement, the Appraisals, environmental and structural audits and preparation
  for real estate closings and filing fees and PSP9 and PSBP will pay the other
  one-half of such costs.  PSP9's and PSBP's share of such costs would be paid
  from their working capital.  If the Mergers are completed, all costs incurred
  in connection with the Mergers will be paid by PSI.

      The following is a statement of certain fees and expenses estimated to be
  incurred in connection with the Mergers (exclusive of amounts paid as a result
  of Cash Elections).

<TABLE>
<CAPTION>
 
      <S>                                                             <C>
      Preclosing Transaction Costs
          Printing and Mailing                                        $  295,000
          Proxy Solicitation                                              50,000
          Legal                                                          100,000
          Real Estate Valuations and Fairness Opinions                   140,000
          Registration, Listing and Filing Fees                          160,000
          Accounting                                                      50,000
          Other                                                           30,000
                                                                      ----------
          Subtotal                                                       825,000
 
      Closing Transaction Costs
          Transfer Fees                                                  360,000
          Legal                                                           40,000
          Title endorsements and escrow                                  220,000
          Other                                                           10,000
                                                                      ----------
          Subtotal                                                       630,000*
                                                                      ----------
      TOTAL                                                           $1,455,000
                                                                      ==========
</TABLE>
- -------------

   *  Would not be incurred if Mergers are not approved.

  Accounting Treatment

     Each of the PSP9 Merger and the PSBP Merger will be treated as a purchase.
  Accordingly, the assets and liabilities of PSP9 and PSBP will be accounted for
  at fair market value based upon independent appraisals and estimates in PSI's
  financial statements for periods after the Mergers.

  Regulatory Requirements

     The Mergers are subject to compliance with federal and state securities law
  requirements.

                                       55
<PAGE>
 
Comparison of PSP9 and PSBP Common Stock with PSI Common Stock

     The information below compares certain attributes of the PSP9 and PSBP
Common Stock with the PSI Common Stock.  The effect of the Mergers on PSP9 and
PSBP Shareholders who receive PSI Common Stock in the Mergers is set forth in
italics below each caption.

                       Investment Objectives and Policies

                                 PSP9 and PSBP

The principal investment objectives are to provide (i) quarterly cash
distributions from its operations and (ii) long-term capital gains through
appreciation in the value of properties.
                                        
Under the organizational documents of PSP9 and PSBP, they are not permitted to
raise new capital or to reinvest operating cash flow or sale or financing
proceeds. PSP9 and PSBP will terminate on December 31, 2038, unless earlier
dissolved. The predecessors of PSP9 and PSBP anticipated selling or financing
their properties within seven to ten years after completion of development
(i.e., between 1992 and 1995 in the case of PSP9 and 1991 and 1994 in the case
of PSBP).

                                      PSI
                                        
The investment objectives of PSI are to maximize FFO allocable of holders of PSI
Common Stock and to increase shareholder value through internal growth and
acquisitions. FFO is a supplemental performance measure for equity REITs used by
industry analysts. FFO does not take into consideration principal payments on
debt, capital improvements, distributions and other obligations of PSI.
Accordingly, FFO is not a substitute for PSI's net cash provided by operating
activities or net income as a measure of PSI's liquidity or operating
performance. An increase in PSI's FFO will not necessarily correspond with an
increase in distributions to holders of PSI Common Stock. See "--Liquidity,
Marketability and Distributions."

PSI intends to continue its operations for an indefinite period of time and is
not precluded from raising new capital, including senior securities that would
have priority over its Common Stock (including Common Stock issued in the
Mergers) as to cash flow, distributions and liquidation proceeds, or from
reinvesting cash flow or sale or financing proceeds in new properties, except to
the extent such reinvestment precludes PSI from satisfying the REIT distribution
requirements. Therefore, PSI Shareholders should expect to be able to liquidate
their investment only by selling their shares in the market, and the market
value of the Common Stock may not necessarily equal or exceed the market value
of PSI's assets or the net proceeds which might be available for distribution
upon liquidation if PSI were to liquidate. PSI has grown, and intends to
continue to grow, as new investments are made.

     PSP9 and PSBP Shareholders who receive PSI Common Stock in the Merger will
be changing their investment from "finite-life" to "infinite-life"; they will be
able to realize the value of their investment only by selling the PSI Common
Stock. The interest of PSI Shareholders can be diluted through the issuance of
additional securities, including securities that would have priority over PSI
Common Stock as to cash flow, distributions and liquidation proceeds. PSI has an
effective registration statement for preferred stock, common stock and warrants
and intends to issue additional securities under this registration statement.
There is no assurance that any such securities will be issued. See "Risk Factors
and Material Considerations --Uncertainty Regarding Market Price of Common
Stock" and "--Financing Risks -- Dilution and Subordination."

                                       56
<PAGE>
 
          PSI has no plans with respect to a sale or financing of any of PSP9's
    or PSBP's properties, except that PSI has, from time to time, considered
    whether to transfer its business park properties to a separate affiliated or
    unaffiliated corporation.  PSI intends to continue to acquire properties
    from other parties.

                               Borrowing Policies

                                 PSP9 AND PSBP

    Neither PSP9 nor PSBP is permitted to borrow in connection with the
    acquisition of properties. Both are fully invested and would distribute the
    proceeds from a financing of properties. Neither generally incurs borrowings
    in the ordinary course of business.

                                      PSI
                                        
    Subject to certain limitations in PSI's Bylaws, PSI has broad powers to
    borrow in furtherance of its investment objectives. PSI has incurred in the
    past, and may incur in the future, both short-term and long-term debt to
    increase its funds available for investment in real estate, capital
    expenditures and distributions. As of September 30, 1995 (pro forma the PSMI
    Merger), PSI's ratio of "Debt" (liabilities other than "accrued and other
    liabilities" and "minority interest" that should, in accordance with GAAP,
    be reflected on PSI's balance sheet) to "Assets" (PSI's total assets that
    should, in accordance with GAAP, be reflected on PSI's balance sheet) was
    approximately 13%.


          PSI, unlike PSP9 and PSBP, incurs debt in the ordinary course of
    business and reinvests proceeds from borrowings.  The incurrence of debt
    increases the risk of loss of investment.


                          Transactions with Affiliates

                                 PSP9 AND PSBP 

    The bylaws of PSP9 and PSBP restrict them from entering into a variety of
    business transactions with affiliates. The bylaws may be amended by a
    majority vote of shareholders. See "Amendment to Bylaws of PSP9 and PSBP."

                                      PSI
                                        
    PSI's Bylaws restrict PSI from acquiring properties from its affiliates or
    from selling properties to them unless the transaction (i) is approved by a
    majority of PSI's independent directors and (ii) is fair to PSI based on an
    independent appraisal.

          It is easier for PSI to enter into transactions with its affiliates
    than in the case of PSP9 or PSBP because shareholder approval is not
    required.

                      Properties (As of November 16, 1995)

                                 PSP9 AND PSBP

    PSP9 - PSP9 owns 15 wholly-owned properties in six states. For the year
    ended December 31, 1994, the weighted average occupancy level and realized
    monthly rent per square foot of PSP9's mini-warehouses were 91% and $.70,
    respectively. See "Description of PSP9's Properties."
 
    PSBP - PSBP owns one wholly-owned property in California. See "Description
    of PSBP's Property."

                                      PSI

    PSI owns equity interests (directly, as well as through general and limited
    partnership interests and capital stock interests) in 1,044 properties in 37
    states, including 269 wholly owned properties. See "Description of PSI
    Properties."

                                       57
<PAGE>
 
          Because PSI owns substantially more property interests in more states
    than does either PSP9 or PSBP, PSI's results of operations are less affected
    by the profitability or lack of profitability of a single property than are
    those of PSP9 or PSBP and it would be more difficult to liquidate PSI than
    either PSP9 or PSBP within a reasonable period of time.

                   Liquidity, Marketability and Distributions

                                 PSP9 AND PSBP

    The common stock of PSP9 and PSBP is traded on the AMEX. During the 12
    months ended September 30, 1995, the average daily trading volume of PSP9
    Common Stock and PSBP Common Stock was 1,300 and 400 shares, respectively.
    PSP9 and PSBP have not issued any securities that have priority over their
    common stock.

                                      PSI
                                        
    PSI Common Stock is traded on the NYSE. During the 12 months ended September
    30, 1995, the average daily trading volume of PSI Common Stock was 60,200
    shares (48,400 shares if November 1994 and May 1995, during which PSI was
    engaged in public offerings of common stock, are excluded). PSI has issued,
    and may in the future issue, securities that have priority over PSI Common
    Stock as to cash flow, distributions and liquidation proceeds.


          Distributions may be declared by the boards of directors of PSP9, PSBP
    and PSI out of any funds legally available for that purpose.  As REITs, they
    are required to distribute at least 95% of their ordinary REIT taxable
    income in order to maintain their qualification as REITs, but, subject to
    certain limitations and penalties, they can take into account subsequent
    year distributions for purposes of satisfying this requirement.  PSI
    distributes less than its cash available for distribution (recently
    distributing amounts approximately equal to its taxable income), permitting
    it to retain funds for additional investment and debt reduction.

          A PSP9 or PSBP Shareholder who receives PSI Common Stock in the
    Mergers should have an investment for which the market is broader and more
    active than the market for PSP9 or PSBP Common Stock.  Distributions of PSI
    Common Stock are subject, however, to priority of preferred stock.  See
    "Risk Factors and Material Considerations -- Consequences of Loss of
    Qualification as a REIT," "Distributions and Price Range of PSI Common
    Stock," "Distributions and Price Range of PSP9 Common Stock" and
    "Distributions and Price Range of PSBP Common Stock" for information on
    trading prices of the PSP9, PSBP and PSI Common Stock.

                                    Taxation

          Each of PSP9, PSBP and PSI was organized to qualify for taxation as
    REITs and intend to continue to so qualify.  As REITs, they generally are
    permitted to deduct distributions to their shareholders, which effectively
    eliminates the "double taxation" (at the corporate and shareholder levels)
    that typically results when a corporation earns income and distributes that
    income to shareholders in the form of dividends.  Distributions received by
    PSP9, PSBP and PSI Shareholders generally constitute portfolio income, which
    cannot offset "passive" income and loss from other investments.

                                 Voting Rights

          PSP9, PSBP and PSI hold annual meetings, with each such meeting on a
    date within 15 months of the prior annual meeting, at which the shareholders
    elect the directors, with each shareholder entitled to cast as many votes as
    there are directors to be elected, multiplied by the number of shares
    registered in his or her name.  Under California law, a majority vote of
    shareholders is required for (i) the removal of directors, (ii) the
    dissolution of the company, (iii) the amendment of certain provisions of the
    organizational documents and (iv) the sale of all or substantially all of
    the company's assets.

                                       58
<PAGE>
 
                             Management and Duties

                                 PSP9 AND PSBP 

    PSP9 and PSBP are managed by their boards of directors and executive
    officers. Two of the directors are independent directors and the third
    director is Hughes.

                                      PSI

    PSI is managed by its board of directors and executive officers. A majority
    of the directors of PSI are independent directors.


          Under California law, directors are accountable to a corporation and
    its shareholders as fiduciaries and are required to perform their duties in
    good faith, in a manner believed to be in the best interests of a
    corporation and its shareholders and with such care, including reasonable
    inquiry, as an ordinarily prudent person in a like position would use under
    similar circumstances.  The liability of the directors of PSP9, PSBP and PSI
    is limited pursuant to the provisions of California law and their
    organizational documents, which limit a director's liability for monetary
    damages to the respective corporation or its shareholders for breach of the
    director's duty of care, where a director fails to exercise sufficient care
    in carrying out the responsibilities of office.  Those provisions would not
    protect a director who knowingly did something wrong, or otherwise acted in
    bad faith, nor would they foreclose any other remedy which might be
    available to the respective corporation or its shareholders, such as the
    availability of non-monetary relief.  In addition, the organizational
    documents provide PSP9, PSBP and PSI with the authority to indemnify its
    "agents" under certain circumstances for expenses or liability incurred as a
    result of litigation.  Under California law, "agents" are defined to include
    directors, officers and certain other individuals acting on a corporation's
    behalf.  PSP9, PSBP and PSI have taken advantage of those provisions and
    have entered into agreements with the respective corporation's directors and
    executive officers, indemnifying them to the fullest extent permitted by
    California law.  To the extent that the foregoing provisions concerning
    indemnification apply to actions arising under the Securities Act, PSP9,
    PSBP and PSI have been advised that, in the opinion of the Commission, such
    provisions are contrary to public policy and therefore are not enforceable.

             Restrictions on Transfer and Anti-Takeover Provisions

                                 PSP9 AND PSBP

    For PSP9 and PSBP to be taxed as REITs, their common stock must be widely
    held. To aid PSP9 and PSBP in meeting this requirement, their boards of
    directors are given the power to restrict the transfer of shares of their
    common stock if the transfer could produce a violation of this requirement.
    PSP9 and PSBP cannot issue additional common and preferred stock without
    shareholder approval.
                                      PSI

    For PSI to be taxed as a REIT, PSI Common Stock must be widely held. To aid
    PSI in meeting this requirement, PSI's articles of incorporation contain
    significant restrictions on the ownership of PSI Common Stock. PSI is
    authorized to issue 200,000,000 shares of PSI Common Stock, of which
    approximately 72,000,000 shares are currently outstanding, and 50,000,000
    shares of preferred stock, of which approximately 13,000,000 shares are
    currently outstanding. Subject to the rules of the NYSE and applicable
    provisions of California law, PSI can issue authorized common and preferred
    stock without shareholder approval. See "Description of PSI Capital Stock--
    Effects of Issuance of Capital Stock," "-- Ownership Limitations" and
    "Certain Federal Income Tax Matters -- General Tax Treatment of PSI."

          Given its greater flexibility to issue capital stock, including senior
    securities with special voting rights and priority over common stock, PSI
    should be in a better position to deter attempts to obtain control in
    transactions not approved by its board of directors than either PSP9 or
    PSBP, and shareholders of PSI could be less likely to benefit from a
    takeover not approved by its board of directors than would shareholders of
    PSP9 or PSBP in a similar circumstance.

                                       59
<PAGE>
 
                        Limited Liability of Investors

          Under California law, shareholders are not generally liable for
    corporate debts or obligations.  The PSP9, PSBP and PSI Common Stock are
    nonassessable.

                          Review of Shareholder Lists

          Under applicable law, a shareholder is entitled, upon written demand,
    to inspect and copy the record of shareholders, at any time during usual
    business hours, for a purpose reasonably related to his or her interest as a
    shareholder.

                      AMENDMENT TO BYLAWS OF PSP9 AND PSBP

       A provision of the bylaws of PSP9 and PSBP prohibits the sale of property
  to affiliates.  Because this would arguably apply to the Mergers, PSP9 and
  PSBP are proposing amendments to their bylaws that expressly authorize a
  merger with PSI provided any such merger is approved by the majority of
  outstanding shares of their common stock.  The proposed amendments have been
  approved by the Boards of Directors of PSP9 and PSBP who recommend that PSP9
  and PSBP Shareholders vote FOR the proposals.  Appendices E-1 and E-2 contain
  complete texts of the proposed amendments.

                                       60
<PAGE>
 
                  APPROVAL OF THE MERGERS AND BYLAW AMENDMENTS

  General

       This Joint Proxy Statement and Prospectus and the enclosed proxy are
  first being mailed on or about _______________, 1996 to the shareholders of
  PSP9 and PSBP in connection with the solicitation by their boards of directors
  for use at the special meetings of their shareholders (and at any adjournment)
  to consider and vote upon the PSP9 Merger and the PSBP Merger, respectively,
  and the respective Bylaw amendment.

       If a proxy in the accompanying form is properly executed and returned
  before the voting, the shares represented thereby will be voted in the manner
  specified on the proxy.  If no specification is made, the shares held by PSP9
  Shareholders will be voted in favor of the PSP9 Merger and the PSP9 Bylaw
  amendment.  The shares held by PSBP Shareholders will be voted in favor of the
  PSBP Merger and the PSBP Bylaw amendment.  A proxy is revocable by delivering
  a subsequently signed and dated proxy or other written notice to the Secretary
  of PSP9 or PSBP, as the case may be, at any time before its exercise.  A proxy
  may also be revoked if the person executing the proxy is present at the
  meeting and chooses to vote in person.

  PSP9

       Holders of record at the close of business on _______________, 1996 of
  the PSP9 Common Stock will be entitled to receive notice of and to vote at the
  meeting.  On such date, there were ____________ shares of PSP9 Common Stock
  outstanding, and each share is entitled to one vote on the PSP9 Merger and the
  PSP9 Bylaw amendment.  Presence, in person or by proxy, of a majority of the
  shares of PSP9 Common Stock constitutes a quorum.  As of the record date, PSI
  beneficially owned ____________ shares (approximately ____%) of PSP9 Common
  Stock and the directors and executive officers of PSP9, including Hughes,
  beneficially owned an additional ___________ shares (approximately ____%) of
  PSP9 Common Stock.  Such parties intend to vote their shares of PSP9 Common
  Stock for the PSP9 Merger and the PSP9 Bylaw amendment.

       The affirmative vote of a majority of the shares of PSP9 Common Stock
  outstanding and entitled to vote on the record date is required under
  California law to approve the PSP9 Merger and the PSP9 Bylaw amendment.
  Accordingly, for these purposes, an abstention or a broker non-vote will have
  the same effect as a vote against the PSP9 Merger and the PSP9 Bylaw
  amendment.  PSP9 has voluntarily imposed the additional condition that the
  PSP9 Merger be approved by a majority of the shares of PSP9 Common Stock
  voting at the meeting of PSP9 Shareholders not held by PSI and its affiliates.
  For these purposes, an abstention or broker non-vote will not be counted as a
  share voting.

  PSBP

       Holders of record at the close of business on _______________, 1996 of
  the PSBP Common Stock will be entitled to receive notice of and to vote at the
  meeting.  On such date, there were ____________ shares of PSBP Common Stock
  outstanding, and each share is entitled to one vote on the PSBP Merger and the
  PSBP Bylaw amendment.  Presence, in person or by proxy, of a majority of the
  shares of PSBP Common Stock constitutes a quorum.  As of the record date, PSI
  beneficially owned ____________ shares (approximately ____%) of PSBP Common
  Stock and the directors and executive officers of PSBP, including Hughes,
  beneficially owned ___________  an additional shares (approximately ____%) of
  PSBP Common Stock.  Such parties intend to vote their shares of PSBP Common
  Stock for the PSBP Merger and the PSBP Bylaw amendment.

       The affirmative vote of a majority of the shares of PSBP Common Stock
  outstanding and entitled to vote on the record date is required under
  California law to approve the PSBP Merger and the PSBP Bylaw amendment.
  Accordingly, for these purposes, an abstention or a broker non-vote will have
  the same effect as a vote against the PSBP Merger and the PSBP Bylaw
  amendment.  PSBP has voluntarily imposed the additional condition that the
  PSBP Merger be approved by a majority of the shares of PSBP Common Stock
  voting at the meeting of PSBP Shareholders not held by PSI and Hughes.  For
  these purposes, an abstention or broker non-vote will not be counted as a
  share voting.

                                       61
<PAGE>
 
   Security Ownership of Certain Beneficial Owners and Management

       PSP9.  The following table sets forth information as of January 15, 1996
  with respect to the person known to PSP9 to be the beneficial owner of more
  than 5% of the outstanding shares of PSP9 Common Stock:

<TABLE> 
<CAPTION> 
                                       Shares of PSP9 Common Stock
                                            Beneficially Owned
                                            ------------------
                                             Number
             Name and Address               of Shares    Percent
             ----------------               ---------    -------
  <S>                                       <C>          <C> 
  PSI                                       689,506(1)     28.2%
  600 North Brand Boulevard, Suite 300
  Glendale, California 91203-1241
</TABLE> 

- ---------------
(1) Includes (i) 584,725 shares of PSP9 Common Stock owned by PSI as to which
    PSI has sole voting and dispositive power and (ii) 104,781 shares of PSP9
    Common Stock which PSI has an option to acquire (together with other
    securities) from B. Wayne Hughes as trustee of the B.W. Hughes Living Trust
    and as to which PSI has sole voting power (pursuant to an irrevocable proxy)
    and no dispositive power.

       The following table sets forth information as of January 15, 1996
  concerning the beneficial ownership of PSP9 Common Stock of each director of
  PSP9 (including Hughes, the chief executive officer) and of all directors and
  executive officers of PSP9 as a group:

<TABLE>
<CAPTION>
                                            Shares of PSP9 Common Stock
                                               Beneficially Owned(1)
                                               ----------------------
                                                       Number
           Name                 Positions            of Shares         Percent
           ----                 ---------            ---------         -------
<S>                    <C>                           <C>               <C> 
B. Wayne Hughes        Chairman of the Board and
                       Chief Executive Officer        104,781(2)          4.3%

Vern O. Curtis         Director                           600              (3)

Jack D. Steele         Director                           100(4)           (3)

All Directors and Executive Officers
 as a Group (seven persons)                           105,481(2)(4)      4.3%

</TABLE>

- ---------------
(1) Except as otherwise indicated and subject to applicable community property
    and similar statutes, the persons listed as beneficial owners of the shares
    have sole voting and investment power with respect to the shares.

(2) Shares owned by B. Wayne Hughes as trustee of the B.W. Hughes Living Trust
    as to which Mr. Hughes has sole dispositive power and no voting power; PSI
    has an option to acquire these shares and an irrevocable proxy to vote these
    shares (see footnote (1) to the preceding table).

(3) Less than 0.1%.

(4) Shares held by a bank custodian of a SEP for the benefit of Mr. Steele.

                                       62
<PAGE>
 
       PSBP.  The following table sets forth information as of January 15, 1996
  with respect to the person known to PSBP to be the beneficial owner of more
  than 5% of the outstanding shares of PSBP Common Stock:
  
<TABLE> 
<CAPTION> 
                                       Shares of PSBP Common Stock
                                            Beneficially Owned
                                            ------------------
                                             Number
             Name and Address               of Shares    Percent
             ----------------               ---------    -------
  <S>                                       <C>          <C> 
  PSI                                       164,009(1)     30.7%
  600 North Brand Boulevard, Suite 300
  Glendale, California 91203-1241

</TABLE> 
- ---------------
(1) PSI has sole voting and dispositive power with respect to these shares.

       The following table sets forth information as of January 15, 1996
  concerning the beneficial ownership of PSBP Common Stock of each director of
  PSBP (including Hughes, the chief executive officer) and of all directors and
  executive officers of PSBP as a group:

<TABLE>
<CAPTION>
                                                  Shares of PSBP Common Stock
                                                     Beneficially Owned(1)
                                                     ----------------------
                                                       Number
           Name                 Positions            of Shares         Percent
           ----                 ---------            ---------         ------- 
<S>                    <C>                           <C>               <C> 
B. Wayne Hughes        Chairman of the Board and
                       Chief Executive Officer            --               --
                                 
Vern O. Curtis         Director                          500               (2)

Jack D. Steele         Director                          100(3)            (2)

All Directors and Executive Officers
    as a Group (seven persons)                         1,150(3)           0.2%

</TABLE>
- ---------------
(1) Except as otherwise indicated and subject to applicable community property
    and similar statutes, the persons listed as beneficial owners of the shares
    have sole voting and investment power with respect to the shares.

(2) Less than 0.1%.

(3) Shares held by a bank custodian of a SEP for the benefit of Mr. Steele.

                                       63
<PAGE>
 
       PSI.  The following table sets forth information with respect to persons
  known to PSI to be the beneficial owners of more than 5% of the outstanding
  shares of PSI Common Stock:

<TABLE>
<CAPTION>
                                               Shares of PSI Common Stock
                                                  Beneficially Owned
                                                  ------------------
                                                   Number
               Name and Address                  of Shares   Percent
               ----------------                  ----------  --------
  <S>                                            <C>         <C>
  B. Wayne Hughes, B. Wayne Hughes, Jr.
  Parker Hughes Trust No. 2, Tamara L. Hughes    37,741,511     52.4%
  600 North Brand Boulevard, Suite 300
  Glendale, California 91203-1241
  PS Insurance Company, Ltd. ("PSIC")
  41 Cedar Avenue
  Hamilton, Bermuda(1)

  FMR Corp.                                       5,465,555      7.6%
  82 Devonshire Street
  Boston, Massachusetts 02109(2)
</TABLE> 

- ---------------
(1) This information is as of January 15, 1996. The reporting persons listed
    above (the "PSI Reporting Persons") have filed a joint Schedule 13D, amended
    as of November 16, 1995. The number of shares of PSI Common Stock
    beneficially owned by the PSI Reporting Persons at January 15, 1996 includes
    6,522 shares which can be acquired upon conversion of 3,875 shares of 8.25%
    Convertible Preferred Stock which are beneficially owned by the PSI
    Reporting Persons. The stock of PSIC is owned approximately 45% by B. Wayne
    Hughes, 47% by Tamara L. Hughes (an adult daughter of B. Wayne Hughes) and
    8% by B. Wayne Hughes, Jr. (an adult son of B. Wayne Hughes). Tamara L.
    Hughes is the trustee of Parker Hughes Trust No. 2, an irrevocable trust for
    the benefit of a minor son of B. Wayne Hughes. Each of the PSI Reporting
    Persons disclaims the existence of a group within the meaning of Section
    13(d)(3) of the Exchange Act. B. Wayne Hughes and Tamara L. Hughes share
    voting and dispositive power with respect to the 300,000 shares owned by
    PSIC. B. Wayne Hughes disclaims beneficial ownership of the shares owned by
    B. Wayne Hughes, Jr., Parker Hughes Trust No. 2 and Tamara L. Hughes (an
    aggregate of 17,872,781 shares (exclusive of the shares owned by PSIC) or
    approximately 24.8% of the shares of PSI Common Stock outstanding (or deemed
    to be outstanding) as of January 15, 1996). Each of the other PSI Reporting
    Persons disclaims beneficial ownership of the shares owned by any other PSI
    Reporting Person.

(2) This information is as of October 31, 1995 and is based on a Schedule 13G
    (Amendment No. 2) filed by FMR Corp. (except that the percent shown in the
    table is based on the shares of PSI Common Stock outstanding (or deemed to
    be outstanding) at January 15, 1996. As of October 31, 1995, FMR Corp.
    beneficially owned 5,465,555 shares of PSI Common Stock. This number
    includes 5,133,300 shares beneficially owned by Fidelity Management &
    Research Company, as a result of its serving as investment adviser to
    several investment companies registered under Section 8 of the Investment
    Company Act of 1940, and 332,255 shares beneficially owned by Fidelity
    Management Trust Company, as a result of its serving as investment manager
    of various institutional accounts. FMR Corp. has sole voting power with
    respect to 288,155 shares and sole dispositive power with respect to
    5,465,555 shares.

                                       64
<PAGE>
 
       The following table sets forth information as of January 15, 1996
  concerning the beneficial ownership of PSI Common Stock of each director of
  PSI (including Hughes, the chief executive officer) and of all directors and
  executive officers of PSI as a group:

<TABLE>
<CAPTION>
                                                              Shares of PSI Common Stock:
                                                              Beneficially Owned(1)
                                                              Shares Subject to Options(2)
                                                              Shares Issuable Upon Conversion
                                                              of Convertible Preferred Stock(3)
                                                              --------------------------------
           Name               Positions                        Number of Shares       Percent
           ----               ---------                        ----------------       -------    
    <S>                      <C>                              <C>                     <C> 
    B. Wayne Hughes          Chairman of the Board and          
                             Chief Executive Officer            19,868,730(1)(4)        27.6%
                                                                                
    Harvey Lenkin            President and Director                582,590(1)(5)         0.8%
                                                                     5,000(2)               *
                                                                     4,040(3)               *
                                                                   -------               ----
                                                                   591,630               0.8%
                                                                                
    Robert J. Abernethy      Director                               65,591(1)               *
                                                                    20,833(2)               *
                                                                    ------               ----
                                                                    86,424               0.1%
                                                                                
    Dann V. Angeloff         Director                               79,164(1)(6)         0.1%
                                                                       833(2)               *
                                                                    ------               ----
                                                                    79,997               0.1%
                                                                                
   William C. Baker          Director                               10,000(1)               *
                                                                    20,833(2)               *
                                                                    ------               ----
                                                                    30,833                  *
                                                                                
    Uri P. Harkham           Director                              475,116(1)(7)         0.7%
                                                                    10,833(2)               *
                                                                   -------               ----
                                                                   485,949               0.7%
                                                                                
    Berry Holmes             Director                                5,100(1)(8)            *
                                                                    15,833(2)               *
                                                                    ------               ----
                                                                    20,933                  *
                                                      
    All Directors and Executive Officers              
     as a Group (15 persons)                                    21,429,757(1)(4)(5)(6)
                                                                          (7)(8)(9)     29.7%
                                                                   211,661(2)            0.3%
                                                                    17,252(3)               *
                                                                ----------              ----- 
                                                                21,658,670              30.0%
</TABLE> 

- ---------------
*   Less than 0.1%

(1) Shares of PSI Common Stock beneficially owned as of January 15, 1996. Except
    as otherwise indicated and subject to applicable community property and
    similar statutes, the persons listed as beneficial owners of the shares have
    sole voting and investment power with respect to such shares.

(2) Represents vested portion, as of January 15, 1996, and portion of which will
    be vested within 60 days of January 15, 1996, of shares of PSI Common Stock
    subject to options granted to the named individuals or the group pursuant to
    PSI's 1990 Stock Option Plan and 1994 Stock Option Plan.

                                       65
<PAGE>
 
(3) Represents shares of PSI Common Stock which can be acquired upon conversion
    of the shares of 8.25% Convertible Preferred Stock which are beneficially
    owned as of January 15, 1996 by the named individuals or the group.

(4) Includes 19,531,640 shares held of record by the B.W. Hughes Living Trust as
    to which Mr. Hughes has voting and investment power, 1,400 and 1,395 shares,
    respectively, held by custodians of IRAs for Mr. Hughes and Mrs. Kathleen
    Hughes as to which each has investment power, 4,826 shares held by Mrs.
    Hughes as to which she has investment power and 29,469 shares held by Mrs.
    Hughes as custodian FBO Parker Hughes Trust dated 3/7/91. Also includes
    300,000 shares held of record by PSIC as to which Mr. Hughes and Tamara L.
    Hughes share voting and dispositive power.

(5) Includes 1,000 and 700 shares, respectively, held by custodians of IRAs for
    Mr. Lenkin and Mrs. Lenkin as to which each has investment power, 300 shares
    held by Mrs. Lenkin and 500 shares held by Mrs. Lenkin as custodian for a
    son. Also includes 540,000 shares held of record by the Public Storage, Inc.
    Profit Sharing Plan and Trust (the "PSI Plan") as to which Mr. Lenkin, as a
    member of the PSI Plan's Advisory Committee, shares the power to direct
    voting and disposition and as to which Mr. Lenkin expressly disclaims
    beneficial ownership.

(6) Includes 5,000 shares held by a custodian of an IRA for Mr. Angeloff, 2,000
    shares held by Mr. Angeloff as trustee of Angeloff's Children's Trust and
    70,164 shares held by Mr. Angeloff as trustee of Angeloff Family Trust.

(7) Includes 76,400 shares held by Mr. Harkham as trustee of Jonathan Martin
    Profit Sharing Plan, 371,179 shares held by Harkham Industries, Inc. (dba
    Jonathan Martin, Inc.), a corporation wholly owned by Mr. Harkham, 5,300
    shares held by Mr. Harkham as trustee of Uri Harkham Trust, 13,172 shares
    held by Jonathan Martin, Inc. Employee Profit Sharing Plan, 650 and 690
    shares, respectively, held by custodians of IRAs for Mr. Harkham and Mrs.
    Harkham as to which each has investment power, and 1,525, 1,600, 1,500,
    1,600 and 1,500 shares, respectively, held by Mr. Harkham as custodian for
    five of his children.

(8) Shares held of record by Mr. and Mrs. Holmes, who share voting and
    investment power.

(9) Includes shares held of record or beneficially by members of the immediate
    family of executive officers of PSI and shares held by custodians of IRAs
    for the benefit of executive officers of PSI.

                                       66
<PAGE>
 
       The following tables set forth information as of January 15, 1996
  concerning the remaining security ownership of each director of PSI (including
  Hughes, the chief executive officer) and of all directors and executive
  officers of PSI as a group:

<TABLE>
<CAPTION>
                                            Shares of 8.25% Convertible        Shares of 10% Cumulative
                                            Preferred Stock                    Preferred Stock, Series A
                                            Beneficially Owned(1)              Beneficially Owned(1)
                                            ---------------------              ---------------------
                                              Number                            Number
       Name                                  of Shares      Percent            of Shares       Percent
       ----                                  ---------      -------            ---------       -------
  <S>                                       <C>             <C>                <C>             <C> 
  B. Wayne Hughes                               --             --                  --             --
                                                                                               
  Harvey Lenkin                              2,400(1)(2)     0.1%                  --             --
                                                                                               
  Robert J. Abernethy                           --             --                  --             --
                                                                                               
  Dann V. Angeloff                              --             --                  --             --
                                                                                               
  William C. Baker                              --             --                  --             --
                                                                                               
  Uri P. Harkham                                --             --                  --             --
                                                                                               
  Berry Holmes                                  --             --                  --             --
                                                                                               
  All Directors and Executive Officers                                                         
    as a Group (15 persons)                 10,250(1)(2)(3)  0.4%               1,460(1)(3)        *
<CAPTION>                                                               
                                            Shares of 9.20% Cumulative         Shares of Adjustable Rate
                                            Preferred Stock,                   Cumulative Preferred Stock,
                                            Series B                           Series C
                                            Beneficially Owned(1)              Beneficially Owned(1)
                                            ---------------------              ---------------------
                                              Number                            Number
       Name                                  of Shares      Percent            of Shares       Percent
       ----                                  ---------      -------            ---------       -------
  <S>                                        <C>            <C>                <C>             <C> 
  B. Wayne Hughes                               --             --                  --             --

  Harvey Lenkin                                 --             --              40,000(1)(4)      3.3%

  Robert J. Abernethy                           --             --                  --             --

  Dann V. Angeloff                              --             --                  --             --

  William C. Baker                              --             --                  --             --

  Uri P. Harkham                                --             --                  --             --

  Berry Holmes                                  --             --                  --             --

  All Directors and Executive Officers                                  
    as a Group (15 persons)                  4,000(1)(3)     0.2%              40,500(1)(3)(4)   3.4%
</TABLE>

- ------------
*   Less than 0.1%

(1) Shares of PSI 8.25% Convertible Preferred Stock, 10% Cumulative Preferred
    Stock, Series A, 9.20% Cumulative Preferred Stock, Series B, or Adjustable
    Rate Cumulative Preferred Stock, Series C, as applicable, beneficially owned
    as of January 15, 1996. Except as otherwise indicated and subject to
    applicable community property and similar statutes, the persons listed as
    beneficial owners of the shares have sole voting and investment power with
    respect to such shares.

(2) Includes 100 shares held by Mrs. Lenkin and 300 shares held by Mrs. Lenkin
    as custodian for a son.

                                       67
<PAGE>
 
(3) Includes shares held of record or beneficially by members of the immediate
    family of executive officers of PSI and shares held by custodians of IRAs
    for the benefit of executive officers of PSI.

(4) Shares held of record by the PSI Plan as to which Mr. Lenkin, as a member of
    the PSI Plan's Advisory Committee, shares the power to direct voting and
    disposition and as to which Mr. Lenkin expressly disclaims beneficial
    ownership.

     As of January 15, 1996, the directors and executive officers of PSI did 
not own any shares of PSI's 9.50% Cumulative Preferred Stock, Series D, 10%
Cumulative Preferred Stock, Series E, 9.75% Cumulative Preferred Stock, 
Series F, Convertible Participating Preferred Stock, Depositary Shares, each
representing 1/1,000 of a Share of 8-7/8% Cumulative Preferred Stock, Series G,
Depositary Shares, each representing 1/1,000 of a Share of 8.45% Cumulative
Preferred Stock, Series H or Class B Common Stock (the Class B Common Stock is
owned by Tamara L. Hughes and B. Wayne Hughes, Jr.).

Solicitation of Proxies

     PSP9 and PSBP will pay its respective cost of soliciting proxies. In
addition to solicitation by mail, certain directors, officers and regular
employees of PSP9, PSBP and their affiliates may solicit the return of proxies
by telephone, telegraph, personal interview or otherwise. PSP9 and PSBP may also
reimburse brokerage firms and other persons representing the beneficial owners
of their common stock for reasonable expenses in forwarding proxy solicitation
materials to such beneficial owners. Shareholder Communications Corporation may
be retained to assist PSP9 and PSBP in solicitation of proxies at an estimated
cost of $20,000.

                                       68
<PAGE>
 
                        DESCRIPTION OF PSP9'S PROPERTIES

     PSP9 owns a total of 15 properties: 13 mini-warehouses, one business park
and one property that combines mini-warehouse and business park space. The
following table contains information as of November 16, 1995 about PSP9's
properties. Pursuant to the Mergers, these properties would be acquired by PSI.

<TABLE>
<CAPTION>
 
                                                       Net
                                 Size of    Number   Rentable
                                 Parcel       of      Square       Date
  Location                       (Acres)    Spaces     Feet       Opened
  --------------------------------------------------------------------------
  <S>                            <C>        <C>      <C>         <C>
 
  California

  Irvine, Alton Pkwy (1)           4.36       37      72,000     July 1984

  Irvine, Hughes Dr.               2.23      501      61,000     April 1984

  Oakland, Hegenberger Rd.         2.60      497      59,000     January 1984

  Saratoga, Sunnyvale Rd.          3.90      689      88,000     March 1985

  Torrance, Lomita Blvd.           2.07      795      54,000     May 1985

  Connecticut                                                

  West Haven, Interstate 95        6.33      443      54,000     August 1985

  Florida                                                    

  Jacksonville, Baymeadows         2.73      462      59,000     December 1983

  Maryland                                                   

  Baltimore, Interstate 695        6.00      527      57,000     December 1984

  Baltimore, Liberty Rd.           6.57      652      75,000     April 1984

  Texas                                                      

  Carrollton, Interstate 35E       2.98      474      57,000     November 1983

  Dallas, Thornton Fwy             2.56      329      41,000     January 1984

  Houston, Fondren Rd.             2.98      464      58,000     January 1984

  Houston, Interstate 45 (2)       5.86      524     112,000     June 1984

  Plano, Parker Rd.                3.02      453      52,000     December 1983

  Wisconsin                                                  

  Milwaukee, W. Layton Ave.        3.06      443      54,000     October 1983
</TABLE>

- -------------
(1) Business park facility.

(2) Combination mini-warehouse and business park facility.

     As of the date of this Joint Proxy Statement and Prospectus, each of these
properties is generating sufficient revenues to cover its operating expenses.

     None of the properties is subject to any material mortgage, lien, or any
encumbrance other than liens for taxes and assessments not yet due or payable,
utility easements or other immaterial liens or encumbrances. Each of the

                                       69
<PAGE>
 
properties will continue to be used for its current purpose. PSP9 believes each
property is adequately covered by insurance.

     As reflected in the table below, PSP9 has experienced overall improved
property operations:

<TABLE>
<CAPTION>
                                                                     Nine months ended
                                          Years ended December 31,     September 30,
                                         --------------------------  -----------------
                                           1992      1993     1994     1994     1995
                                           ----      ----     ----     ----     ---- 
  <S>                                    <C>        <C>      <C>     <C>      <C>
                                
  Weighted average occupancy level (1)      90%       91%      91%      91%     90%
  Realized monthly rent per occupied                     
    square foot (1)(2)                    $ .64     $ .65    $ .70    $ .68   $ .71
</TABLE>

  (1) Mini-warehouses only.

  (2) Realized monthly rent per occupied square foot represents the actual
      revenue earned per occupied square foot.  PSP9 believes this is a more
      relevant measure than the posted rental rates, since posted rates can be
      discounted through the use of promotions.

     Additional information is set forth below with respect to the
Saratoga/Saratoga - Sunnyvale Road, Irvine/Alton Parkway and Houston/Interstate
45 properties because they are the only properties with a book value of at least
10% of the total assets of PSP9 or that have accounted for gross revenues of at
least 10% of the aggregate gross revenues of PSP9.

     Saratoga/Saratoga - Sunnyvale Road. The property is located approximately
nine miles southwest of downtown San Jose on the west side of Saratoga -
Sunnyvale Road in the city of Saratoga. The property is located in a heavily
populated residential area.

     The 3.9-acre property, which opened in 1985, consists primarily of 
mini-warehouse spaces and includes an incidental amount of retail and office
space. The mini-warehouse consists of approximately 81,000 square feet of net
rentable area, including 689 individual storage units. The retail office
buildings consist of 7,000 square feet of net rentable area containing two
office/warehouse units. As of December 31, 1994, the mini-warehouse had 655
units occupied, representing a 95% occupancy rate, and the business park space
was 100% occupied by two tenants. No tenant occupies 10% or more of the rentable
area of the property.

     Set forth below is a schedule showing the occupancy rate and the rent per
square foot for the property at the dates indicated.

<TABLE>
<CAPTION>
                                              Annual
                                             Scheduled
                                 Occupancy    Rent Per
             Date                  Rate     Square Foot
             ----                ---------  -----------
           <S>                   <C>        <C>
           September 30, 1995      100%        $11.97
           September 30, 1994       98          11.39
           December 31, 1994        95          11.76
           December 31, 1993        93          11.64
           December 31, 1992        92          11.04
           December 31, 1991        94          10.20
           December 31, 1990        93          10.20
           December 31, 1989        95          10.20
           December 31, 1988        92           9.48
</TABLE>

                                       70
<PAGE>
 
       Irvine/Alton Parkway.  This property, a business park, is located
  approximately 43 miles southeast of downtown Los Angeles in the Irvine
  Industrial Complex East.  The business park contains a combination of office
  space and light industrial space.  The office space is suitable for general
  management use and interaction with customers.  The industrial space is
  suitable for light manufacturing, assembly, distribution or research and
  development.

       Alton Parkway has become a major route to the expanding residential areas
  surrounding the site.  The 4.36-acre property contains approximately 72,000
  square feet of net rentable space divided into 36 units.  The property, which
  opened in 1984, was 81% occupied at December 31, 1994 by 29 tenants.  No
  tenant occupies 10% or more of the rentable area.

       Set forth below is a schedule showing the occupancy rate and the rent per
  square foot for the property at the dates indicated:

<TABLE>
<CAPTION>
 
                                              Annual
                                             Scheduled
                                 Occupancy    Rent Per
             Date                  Rate     Square Foot
             ----                ---------  -----------
           <S>                   <C>        <C>
           September 30, 1995       90%       $ 9.59
           September 30, 1994       79         10.77
           December 31, 1994        81          9.60
           December 31, 1993        83         10.56
           December 31, 1992        86         10.68
           December 31, 1991        88         12.01
           December 31, 1990        84         11.76
           December 31, 1989        98         10.92
           December 31, 1988        86         10.56
</TABLE>

       A schedule showing, as of November 30, 1995, the total annual base rent
  and percentage of total income relating to leases according to their
  expiration dates is set forth below:

<TABLE>
<CAPTION>
 
           Year of            Total Amt.  Percentage of
           Expiration*        Base Rent    Total Income
           ----------         ----------  -------------
<S>                           <C>         <C>
           1995 (December)     $  1,000            .2%
           1996                 205,000          44.7
           1997                 227,000          49.4
           1998                  26,000           5.7
           Thereafter                 -             -
                               --------        ------
           Total               $459,000        100.00%
                               ========        ======
</TABLE>

- -------------
   *  Assumes that none of the renewal options included in the leases will be
      exercised.

       Houston/Interstate 45.  This 5.86-acre property is situated approximately
  11 miles northwest of downtown Houston.  The property fronts both Interstate
  45, a heavily traveled north-south thoroughfare and Bluebell Road.
  Surrounding the site is a mixture of residential, industrial and commercial
  establishments.

       The property, which opened in 1984, consists of six single-story 
  mini-warehouse buildings with approximately 68,000 net rentable square feet
  divided into 499 individual storage units. In addition, there are 25
  office/warehouse units containing approximately 45,000 net rentable square
  feet. As of December 31, 1994, the property's mini-warehouse facility had 422
  units occupied representing an 85% occupancy rate and the business park
  facility was 96% occupied by 25 tenants. No tenant occupies 10% or more of the
  rentable area.

                                       71
<PAGE>
 
       Set forth below is a schedule showing the occupancy rate and the rent per
  square foot for the mini-warehouse portion of the property at the dates
  indicated:

<TABLE>
<CAPTION>
                                                  Annual
                                                Scheduled
                                 Occupancy       Rent Per
             Date                  Rate        Square Foot
             ----                ---------     -----------
           <C>                   <C>           <C>
           September 30, 1995       88%           $4.17
           September 30, 1994       87             4.16
           December 31, 1994        85             4.68
           December 31, 1993        83             4.68
           December 31, 1992        85             5.04
           December 31, 1991        90             4.80
           December 31, 1990        95             4.44
           December 31, 1989        82             4.44
           December 31, 1988        76             4.56
</TABLE>

       Set forth below is a schedule showing the occupancy rate and the rent per
  square foot for the business park portion of the facility at the dates
  indicated:

<TABLE>
<CAPTION>
                                                  Annual
                                                Scheduled
                                 Occupancy       Rent Per
             Date                  Rate        Square Foot
             ----                ---------     -----------
           <C>                   <C>           <C>
           September 30, 1995       99%           $3.57
           September 30, 1994       92             3.61
           December 31, 1994        96             3.60
           December 31, 1993        84             3.84
           December 31, 1992        96             3.96
           December 31, 1991        92             3.91
           December 31, 1990        81             3.84
           December 31, 1989        93             3.72
           December 31, 1988        90             3.60
</TABLE>

       A schedule showing, as of November 30, 1995, total annual base rent and
  percentage of total income relating to leases according to their expiration
  dates is set forth below:

<TABLE>
<CAPTION>
                                 Total        Percentage
           Year of              Amount         of Total
           Expiration*         Base Rent        Income
           -----------         ---------      -----------
           <S>                 <C>            <C>
           1995 (December)     $     -             -
           1996                  55,000          35.0%
           1997                  86,000          54.8
           1998                  16,000          10.2
           Thereafter                -             -
                               --------        ------
     Total                     $157,000        100.00%
                               --------        ------
</TABLE>

- -----------
*  Assumes that none of the renewal options included in the leases will be
   exercised.

                                       72
<PAGE>
 
                         DESCRIPTION OF PSBP'S PROPERTY

       The following table sets forth information as of December 31, 1994 about
  PSBP's property. Pursuant to the Mergers, this property would be acquired by
  PSI.

<TABLE>
<CAPTION>
 
                                                  Net
                             Size of            Rentable
                             Parcel              Square              Date
Location                     (Acres)              Feet              Opened
- --------------------------------------------------------------------------------
<S>                          <C>                <C>                <C> 
 
California

San Jose, Old Oakland Road    8.31               173,000           April 1984
</TABLE> 
 
       The following is the property performance for the last three years:

<TABLE> 
<CAPTION> 
                                                                        Nine months ended
                                            Years ended December 31,       September 30,
                                            ------------------------     -----------------
                                            1992      1993      1994       1994      1995
                                            ----      ----      ----       ----      ----
<S>                                       <C>         <C>       <C>        <C>       <C>  
Weighted average occupancy level             97%       98%       98%        98%       98%
Realized monthly rent per occupied                         
  square foot (1)                           $.86      $.80      $.84       $.85      $.86
</TABLE>

- ------------
(1) Realized rent per square foot represents the actual revenue earned per
    occupied square foot. Management believes this is a more relevant measure
    than the posted rental rates, since posted rates can be discounted through
    the use of promotions. Includes administrative and late fees.

       The property is a business park facility located on Old Oakland Road in
  San Jose, California, in the Santa Clara Valley, one and one-half miles west
  of the Bayshore Freeway (U.S. Highway 101), and two miles northwest of the San
  Jose Municipal Airport.

       The property is situated on an 8.31-acre site.  PSBP originally acquired
  a total of 14.52 acres; 6.21 acres were sold to unaffiliated parties.  The
  property opened in April 1984 and the conversion and expansion of the property
  was completed in 1985.  The property contains approximately 173,000 square
  feet of net rentable space divided into 118 units.  The facility was 98%
  occupied at December 31, 1994 by 115 tenants.  No tenant occupies 10% or more
  of the rentable area.  The property includes both industrial and office space.
  Approximately 45% of the available space is occupied by electronics related
  industries, approximately 75% of the space is used for offices and the
  remaining approximately 25% of the space is used for warehousing.  The
  business park also includes facilities for commercial uses such as banks or
  other savings institutions, travel agencies or restaurants.

       At December 31, 1994 the property is generating sufficient revenues to
  cover its ongoing operating expenses.

                                       73
<PAGE>
 
       Set forth below is a schedule showing the occupancy rate and the rent per
  square foot for the property at the dates indicated.

<TABLE>
<CAPTION>
                                                  Annual
                                                Scheduled
                                 Occupancy       Rent Per
             Date                  Rate        Square Foot
             ----                ---------     -----------
           <C>                   <C>           <C>
           September 30, 1995       99%          $10.37
           September 30, 1994       98             9.97
           December 31, 1994        98            10.20
           December 31, 1993        98            10.08
           December 31, 1992        97             9.72
           December 31, 1991        97            10.41
           December 31, 1990        94            10.28
           December 31, 1989        94             9.87
</TABLE>

       A schedule showing total annual base rent and percentage of total income
  relating to leases according to their expiration dates is set forth below:

<TABLE>
<CAPTION>
                                 Total        Percentage
           Year of              Amount         of Total
           Expiration*         Base Rent        Income
           -----------         ---------      -----------
           <S>                 <C>            <C>
           1995 (December)    $    1,000         0.1%
           1996                  785,000        57.3
           1997                  399,000        29.1
           1998                  175,000        12.8
           1999                    9,000          .7
                              ----------      ------
    Total                     $1,369,000      100.00%
                              ==========      ======
</TABLE>

- ------------
*  Assumes that none of the renewal options included in the leases will be
   exercised.

                                       74
<PAGE>
 
                        DESCRIPTION OF PSI'S PROPERTIES

       At November 16, 1995, PSI had equity interests (through direct ownership,
  as well as general and limited partnership interests and stock ownership
  interests) in 1,044 facilities (269 of which were wholly-owned) located in 37
  states.  These facilities consist of 1,009 mini-warehouses and 35 business
  parks.  None of PSI's current investments involves 10% or more of PSI's total
  assets or gross revenues.  In the opinion of management of PSI, the facilities
  in which PSI has invested are adequately insured.  In addition to the
  properties in which it has an equity interest, the Company operates 77
  properties in which it has no equity interest.

       The following table reflects the geographic diversification of PSI's
  mini-warehouses ("Mini") and business parks ("BP"):

<TABLE>
<CAPTION>
                                           At September 30, 1995(1)
                                           ------------------------
                                                  Number of
                                            Real Estate Facilities
                                            ----------------------
                                           Mini(2)               BP
                                           -------               --
           <S>                             <C>                   <C> 
           California:
             Southern..................      164                  17
             Northern..................      143                   5
           Texas.......................      122                   8
           Florida.....................       79                  --
           Illinois....................       62                  --
           Colorado....................       36                  --
           Washington..................       37                   1
           Virginia....................       28                   3
           Georgia.....................       37                  --
           New Jersey..................       34                  --
           Maryland....................       31                   1
           New York....................       29                  --
           Ohio........................       27                  --
           Nevada......................       22                  --
           Pennsylvania................       20                  --
           Oregon......................       26                   1
           Other states (23 states)....      179                   9
                                           -----                  --
                Totals.................    1,076                  45
                                           =====                  ==
</TABLE> 
           ------------

           (1) Pro forma for the PSMI Merger.
           (2) Includes properties that combine mini-warehouse and business park
               space.
 
       As reflected in the table below, PSI has experienced overall improved
       property operations:

<TABLE> 
<CAPTION> 
                                                                            Nine months ended
                                               Years ended December 31,       September 30,
                                               ------------------------     -----------------
                                               1992       1993     1994      1994       1995
                                               ----       ----     ----      ----       ----
  <S>                                         <C>         <C>      <C>       <C>        <C>  
  Weighted average occupancy level (1)        86.1%       89.5%    90.3%     90.3%      90.0%
  Realized monthly rent per occupied                               
    square foot (1)(2)                         $.55        $.56     $.59      $.58       $.60
</TABLE>

- ------------
(1) Mini-warehouses owned throughout the periods.

                                       75
<PAGE>
 
  (2) Realized monthly rent per occupied square foot represents the actual
      revenue earned per occupied square foot. PSI believes this is a more
      relevant measure than the posted rental rates, since posted rates can be
      discounted through the use of promotions.

    At December 31, 1994, PSI had 10% more of its portfolio of properties (based
  on original acquisition cost) in the following states:

<TABLE>
<CAPTION>
                                              Weighted average    Realized monthly
                             Percentage of    occupancy level     rent per occupied
                             Portfolio at      for the twelve     square foot for
                             December 31,       months ended      the year ended
               Number of    1994 Based on       December 31,       December 31,
              Properties    Original Cost         1994(1)             1994(1)
              ---------------------------------------------------------------------
<S>           <C>           <C>               <C>                <C>
California         95            22%               88%                 $.82
Texas              61            14%               87%                  .50
Other             246            64%               90%                  .58
                  ---           ---                --                  ----
                  402           100%               88%                 $.63
                  ===           ===                ==                  ====
</TABLE>

- -----------------
(1)  Mini-warehouses only.

                                       76
<PAGE>
 
               DISTRIBUTIONS AND PRICE RANGE OF PSI COMMON STOCK

       The PSI Common Stock has been listed on the NYSE since October 19, 1984.
  The following table sets forth the distributions paid per share on the PSI
  Common Stock in the periods indicated below and the reported high and low
  sales prices on the NYSE composite tape for the applicable periods.

<TABLE>
<CAPTION>
                                                       Distributions
              Calendar Periods     High       Low          Paid  (1)
              ----------------     ----       ---         ------
              <S>                 <C>        <C>       <C>
              1993:                        
                First quarter     $12        $ 8 7/8      $.21
                Second quarter     12 1/4     11           .21
                Third quarter      14 1/2     11 5/8       .21
                Fourth quarter     15         13 5/8       .21
                                           
              1994:                        
                First quarter      16         13 1/2       .21
                Second quarter     16 3/4     13 3/8       .21
                Third quarter      15 3/4     14 1/4       .21
                Fourth quarter     15         13           .22
                                           
              1995:                        
                First Quarter      17 1/8     13 1/2       .22
                Second Quarter     17 1/8     15 1/4       .22
                Third quarter      18 3/4     16 3/8       .22
</TABLE>

  -------------- 

  (1) For GAAP purposes, all distributions were from investment income.

       As of September 30, 1995, there were approximately 13,932 record holders
  of PSI Common Stock.  On December 31, 1995, the last full trading day prior to
  the first public announcement of the proposed Mergers, the closing price of
  the Common Stock of PSI was $19-3/8.  On _______________, 1996, the last full
  trading day prior to the date of this Joint Proxy Statement and Prospectus,
  the closing price was $_____.

       Holders of PSI Common Stock are entitled to receive distributions when,
  as and if declared by the board of directors out of any funds legally
  available for that purpose.  PSI, as a REIT, is required to distribute
  annually at least 95% of its "real estate investment trust taxable income,"
  which, as defined by the relevant tax statutes and regulations, is generally
  equivalent to net taxable ordinary income.  Under certain circumstances, PSI
  can rectify a failure to meet this distribution requirement by paying
  dividends after the close of a particular taxable year.  See "Certain Federal
  Income Tax Matters -- General Tax Treatment of PSI."

       PSI's revolving credit facility with a commercial bank restricts PSI's
  ability to pay distributions in excess of "Funds from Operations" for the
  prior four fiscal quarters less scheduled principal payments and less capital
  expenditures. Funds from Operations is defined in the loan agreement generally
  as net income before gain on sale of real estate, extraordinary loss on early
  retirement of debt and deductions for depreciation, amortization and non-cash
  charges.  Also, unless full dividends on PSI's preferred stock have been paid
  for all past dividend periods, no dividends may be paid on PSI Common Stock,
  except in certain instances.

                                       77
<PAGE>
 
               DISTRIBUTIONS AND PRICE RANGE OF PSP9 COMMON STOCK

       The PSP9 Common Stock has been listed on the AMEX since February 1991.
  The following table sets forth the distributions paid per share on PSP9 Common
  Stock with respect to the periods indicated below and the reported high and
  low sales prices on the AMEX composite tape for the applicable periods.

<TABLE>
<CAPTION>
                                                       Distributions
              Calendar Periods     High       Low          Paid  (1)
              ----------------     ----       ---         ------
              <S>                 <C>        <C>       <C> 
              1993:
                First quarter     $16 7/8    $13 1/4       $.39
                Second quarter     17 3/4     16 1/2        .39
                Third quarter      20         17            .39
                Fourth quarter     20 1/4     15 7/8        .39
                                                           
              1994:                                        
                First quarter      18 5/8     16 1/8        .39
                Second quarter     18 5/8     17            .39
                Third quarter      17 7/8     16 5/8        .39
                Fourth quarter     18 1/4     16 5/8        .39
                                                          
              1995:                                        
                First Quarter      18 1/8     16            .39
                Second Quarter     17 3/8     16 1/2        .30
                Third quarter      17 1/2     16 5/8        .30
</TABLE>

  ----------
  (1) Distributions paid per share of PSP9 Common Stock with respect to the
      applicable periods.  Actual payment was made 15 days after end of quarter.
      For GAAP purposes, distributions in 1993 includes $.12 of capital gain
      distributions.  Distributions in 1994 and 1995 were from investment
      income.

       As of September 30, 1995, there were approximately 2,220 record holders
  of PSP9's Common Stock.  On December 13, 1995, the last full trading day prior
  to the first public announcement of the proposed Mergers, the closing price of
  PSP9 Common Stock was $17-1/8.  On _______________, 1996, the last full
  trading day prior to the date of this Joint Proxy Statement and Prospectus,
  the closing price was $_____.

       Holders of PSP9 Common Stock are entitled to receive distributions when,
  as and if declared by its board of directors out of any funds legally
  available for that purpose.  PSP9 as a REIT, is required to distribute
  annually at least 95% of its "real estate investment trust taxable income,"
  which, as defined by the relevant tax statutes and regulations, is generally
  equivalent to net taxable ordinary income.  Under certain circumstances, PSP9
  can rectify a failure to meet this distribution requirement by paying
  dividends after the close of a particular taxable year.

                                       78
<PAGE>
 
               DISTRIBUTIONS AND PRICE RANGE OF PSBP COMMON STOCK

       The PSBP Common Stock has been listed on the AMEX since September 1991.
  The following table sets forth the distributions paid per share on PSBP Common
  Stock with respect to the periods indicated below and the reported high and
  low sales prices on the AMEX composite tape for the applicable periods.

<TABLE>
<CAPTION>
                                                       Distributions
              Calendar Periods     High       Low          Paid  (1)
              ----------------     ----       ---         ------
              <S>                 <C>        <C>       <C>
              1993:
                First quarter     $16 1/2   $13 7/8        $.40
                Second quarter     16 1/4    14 7/8         .40
                Third quarter      16 5/8    14 7/8         .40
                Fourth quarter     15 5/8    14 7/8         .40
                                                            
              1994:                                         
                First quarter      15 7/8    15             .40
                Second quarter     16 1/4    15             .40
                Third quarter      16 1/4    16 5/8         .40
                Fourth quarter     15 5/8    14 1/4         .40
                                                            
              1995:                                         
                First Quarter      16 7/8    14 1/2         .40
                Second Quarter     18 3/8    16 1/4         .40
                Third quarter      18 1/4    17 1/4         .40 (2)
</TABLE>

  -------------  
  (1) Distributions paid per share of PSBP Common Stock with respect to the
      applicable periods.  Actual payment was made 15 days after end of quarter.
      For GAAP purposes, distributions in 1993, 1994 and the nine months ended
      September 1995, include $.41, $.38 and $.22 return of capital,
      respectively, from investment income.

  (2) Includes $.21 special distribution.  PSBP announced that regular
      distributions for the fourth quarter of 1995 and subsequent quarters would
      be $.19 per share.

       As of September 30, 1995, there were approximately 716 record holders of
  PSBP's Common Stock.  On December 13, 1995, the last full trading day prior to
  the first public announcement of the proposed Mergers, the closing price of
  PSBP Common Stock was $17-3/8.  On _______________, 1996, the last full
  trading day prior to the date of this Joint Proxy Statement and Prospectus,
  the closing price was $_____.

       Holders of PSBP Common Stock are entitled to receive distributions when,
  as and if declared by its board of directors out of any funds legally
  available for that purpose.  PSBP as a REIT, is required to distribute
  annually at least 95% of its "real estate investment trust taxable income,"
  which, as defined by the relevant tax statutes and regulations, is generally
  equivalent to net taxable ordinary income.  Under certain circumstances, PSBP
  can rectify a failure to meet this distribution requirement by paying
  dividends after the close of a particular taxable year.

                                       79
<PAGE>
 
                        DESCRIPTION OF PSI CAPITAL STOCK

       PSI is authorized to issue 200,000,000 shares of Common Stock, par value
  $.10 per share, 7,000,000 shares of Class B Common Stock, par value $.10 per
  share and 50,000,000 shares of preferred stock, par value $.01 per share.  At
  November 16, 1995, the Company had outstanding 65,652,073 shares of Common
  Stock (exclusive of shares issuable upon conversion of the Company's
  convertible preferred stock and shares subject to options) and 13,437,200
  shares of preferred stock and had agreed to issue (i) subject to certain
  conditions, 7,000,00 shares of Class B Common Stock and (ii) subject to
  certain post-PSMI Merger adjustments, an additional 6,412,200 shares of Common
  Stock.

  Common Stock

       The following description of PSI Common Stock sets forth certain general
  terms and provisions of PSI Common Stock.  The statements below describing PSI
  Common Stock are in all respects subject to and qualified in their entirety by
  reference to the applicable provisions of the PSI's Articles of Incorporation
  and Bylaws.

       PSI Shareholders will be entitled to receive dividends when, as and if
  declared by the Board of Directors, out of funds legally available therefor.
  Payment and declaration of dividends on PSI Common Stock and purchases of
  shares thereof by PSI will be subject to certain restrictions if PSI fails to
  pay dividends on outstanding preferred stock.  See "-- Preferred Stock."  Upon
  any liquidation, dissolution or winding up of PSI, holders of PSI Common Stock
  will be entitled to share equally and ratably in any assets available for
  distribution to them, after payment or provision for payment of the debts and
  other liabilities of PSI and the preferential amounts owing with respect to
  any outstanding preferred stock.  Holders of PSI Common Stock have no
  preemptive rights, which means they have no right to acquire any additional
  shares of Common Stock that may be issued by PSI at a subsequent date.

       Each outstanding share of PSI Common Stock entitles the holder to one
  vote on all matters presented to shareholders for a vote, with the exception
  that shareholders have cumulative voting rights with respect to the election
  of the Board of Directors, in accordance with California law.  Cumulative
  voting entitles each PSI Shareholder to cast as many votes as there are
  directors to be elected multiplied by the number of shares registered in his
  or her name.  A PSI Shareholder may cumulate the votes for directors by
  casting all of the votes for one candidate or by distributing the votes among
  as many candidates as the PSI Shareholder chooses.  PSI Shareholders have no
  preemptive or other rights to subscribe for or purchase additional shares of
  PSI Common Stock.  All outstanding shares of PSI Common Stock are fully paid
  and nonassessable.  Under California law, if PSI is liquidated, subject to the
  rights of any holders of preferred stock, each outstanding share is entitled
  to participate pro rata in the assets remaining after payment of, or adequate
  provision for, all known debts and liabilities of PSI.

  Ownership Limitations

       For PSI to qualify as a REIT under the Code, no more than 50% in value of
  its outstanding shares of capital stock may be owned, directly or
  constructively under the applicable attribution rules of the Code, by five or
  fewer individuals (as defined in the Code to include certain entities) during
  the last half of a taxable year.  In order to maintain its qualification as a
  REIT, PSI's Articles of Incorporation and Bylaws provide certain restrictions
  on the shares of capital stock that any PSI Shareholder may own.

       PSI's Articles of Incorporation and Bylaws provide that, subject to
  certain exceptions, no holder may own, or be deemed to own by virtue of the
  attribution provisions of the Code, more than (A) 2.0% of the outstanding
  shares of all common stock of PSI, or (B) 9.9% of the outstanding shares of
  each class or series of shares of preferred stock of PSI.  The Articles of
  Incorporation and Bylaws provide, however, that no person shall be deemed to
  exceed the ownership limit solely by reason of the beneficial ownership of
  shares of any class of stock to the extent that such shares of stock were
  beneficially owned by such person (including the Hughes Family) at the time of
  the PSMI Merger.  This ownership limitation is necessary in order to assist in
  preserving PSI's REIT status in view of the Hughes Family's substantial
  ownership interest in PSI.  See "Certain Federal Income Tax Considerations --
  Tax Treatment of PSI."

       PSI's Board of Directors, in its sole and absolute discretion, may grant
  an exception to the ownership limits to any person so requesting, so long as
  (A) the Board of Directors has determined that, after giving effect to (x) an

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  acquisition by such person of beneficial ownership (within the meaning of the
  Code) of the maximum amount of capital stock of PSI permitted as a result of
  the exception to be granted and (y) assuming that the four other persons who
  would be treated as "individuals" for the purposes of Section 542(a)(2) of the
  Code and who would beneficially own the largest amounts of stock of PSI
  (determined by value) beneficially own the maximum amount of capital stock of
  PSI permitted under the ownership limits (or any waivers of the ownership
  limits granted with respect to such persons), PSI would not be "closely held"
  within the meaning of Section 856(h) of the Code and would not otherwise fail
  to qualify as a REIT, and (B) such person provides to the Board of Directors
  such representations and undertakings as the Board of Directors may require.
  Notwithstanding any of the foregoing ownership limits, no holder may own or
  acquire, either directly, indirectly or constructively under the applicable
  attribution rules of the Code, any shares of any class of PSI's capital stock
  if such ownership or acquisition (i) would cause more than 50% in value of
  PSI's outstanding capital stock to be owned, either directly or
  constructively, under the applicable attribution rules of the Code, by five or
  fewer individuals (as defined in the Code to include certain tax-exempt
  entities, other than, in general, qualified domestic pension funds), (ii)
  would result in PSI's stock being beneficially owned by less than 100 persons
  (determined without reference to any rules of attribution), or (iii) would
  otherwise result in PSI's failing to qualify as a REIT.

       PSI's Articles of Incorporation and Bylaws provide that, if any holder of
  PSI's capital stock purports to transfer shares to a person or there is a
  change in the capital structure of PSI and either the transfer or the change
  in capital structure would result in PSI failing to qualify as a REIT, or such
  transfer or the change in capital structure would cause the transferee to hold
  shares in excess of the applicable ownership limit, then the stock being
  transferred (or in the case of an event other than a transfer, the stock
  beneficially owned) which would cause one or more of the restrictions on
  ownership or transfer to be violated shall be automatically transferred to a
  trust for the benefit of a designated charitable beneficiary.  The purported
  transferee of such shares shall have no right to receive dividends or other
  distributions with respect to such shares and shall have no right to vote such
  shares.  Any dividends or other distributions paid to such purported
  transferee prior to the discovery by PSI that the shares have been transferred
  to a trust shall be paid to the trustee of the trust for the benefit of the
  charitable beneficiary upon demand.  The trustee of the trust will have all
  rights to dividends with respect to shares of stock held in trust, which
  rights will be exercised for the exclusive benefit of the charitable
  beneficiary.  Any dividends or distributions paid over to the trustee will be
  held in trust for the charitable beneficiary.  The trustee shall designate a
  transferee of such stock so long as such shares of stock would not violate the
  restrictions on ownership or transfer in the Articles of Incorporation or
  Bylaws in the hands of such designated transferee.  Upon the sale of such
  shares, the purported transferee shall receive the lesser of (A)(i) the price
  per share such purported transferee paid for the stock in the purported
  transfer that resulted in the transfer of the shares to the trust, or (ii) if
  the transfer or other event that resulted in the transfer of the shares of the
  trust was not a transaction in which the purported transferee gave full value
  for such shares, a price per share equal to the market price on the date of
  the purported transfer or other event that resulted in the transfer of the
  shares to the trust and (B) the price per share received by the trustee from
  the sale or other disposition of the shares held in the trust.

  Class B Common Stock

       The Class B Common Stock (i) does not participate in distributions until
  the later to occur of Funds from Operations ("FFO") per Common Share (as
  defined below by PSI), aggregating $1.80 during any period of four consecutive
  calendar quarters, or January 1, 2000; thereafter, the Class B Common Stock
  will participate in distributions (other than liquidating distributions), at
  the rate of 97% of the per share distributions on the Common Stock, provided
  that cumulative distributions of at least $.22 per quarter per share have been
  paid on the Common Stock, (ii) does not participate in liquidating
  distributions, (iii) is not entitled to vote (except as expressly required by
  California law) and (iv) will automatically convert into Common Stock, on a
  share for share basis, upon the later to occur of FFO per Common Share
  aggregating $3.00 during any period of four consecutive calendar quarters or
  January 1, 2003.

       For these purposes:

       (1) FFO means net income (loss) (computed in accordance with GAAP) before
  (i) gain (loss) on early extinguishment of debt, (ii) minority interest in
  income and (iii) gain (loss) on disposition of real estate, adjusted as
  follows: (i) plus depreciation and amortization (including PSI's pro-rata
  share of depreciation and amortization of unconsolidated equity interests and
  amortization of assets acquired in the PSMI Merger, including property
  management

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  agreements and goodwill), and (ii) less FFO attributable to minority interest.
  FFO is a supplemental performance measure for equity REITs as defined by the
  National Association of Real Estate Investment Trusts, Inc. ("NAREIT").  The
  NAREIT definition does not specifically address the treatment of minority
  interest in the determination of FFO or the treatment of the amortization of
  property management agreements and goodwill.  In the case of PSI, FFO
  represents amounts attributable to its shareholders after deducting amounts
  attributable to the minority interests and before deductions for the
  amortization of property management agreements and goodwill.  FFO does not
  take into consideration scheduled principal payments on debt, capital
  improvements, distributions and other obligations of PSI.  Accordingly, FFO is
  not a substitute for PSI's cash flow or net income as a measure of its
  liquidity or operating performance or ability to pay distributions.

       (2) FFO per Common Share means FFO less preferred stock dividends (other
  than dividends on convertible preferred stock) divided by the outstanding
  weighted average shares of Common Stock assuming conversion of all outstanding
  convertible securities and the Class B Common Stock.

  Preferred Stock

       PSI is authorized to issue 50,000,000 shares of preferred stock, $.01 par
  value per share.  PSI's Articles of Incorporation provide that the preferred
  stock may be issued from time to time in one or more series and give the Board
  of Directors broad authority to fix the dividend and distribution rights,
  conversion and voting rights, if any, redemption provisions and liquidation
  preferences of each series of preferred stock.

       At November 16, 1995, PSI had eight series of preferred stock
  outstanding: six series of senior preferred stock (the "Senior Preferred
  Stock") and two series of convertible preferred stock.  In all respects, each
  of the series of Senior Preferred Stock ranks on a parity with each other and
  is senior to both series of convertible preferred stock.  Each of the series
  of Senior Preferred Stock (i) has a stated value of $25.00 per share, (ii) in
  preference to the holders of shares of the Common Stock and any other capital
  stock ranking junior to the Senior Preferred Stock as to payment of dividends
  (including both series of convertible preferred stock), provides for
  cumulative quarterly dividends calculated as a percentage of the stated value
  (ranging from 9.2% to 10% per year in the case of the seven series of fixed
  rate preferred stock and a rate adjustable quarterly ranging from 6.75% to
  10.75% per year in the case of a series of adjustable rate preferred stock)
  and (iii) is subject to redemption, in whole or in part, at the option of PSI
  at a cash redemption price of $25.00 per share, plus accrued and unpaid
  dividends (on and after June 30, 1999 in the case of the adjustable rate
  preferred stock and on or after various dates between September 30, 2002 and
  April 30, 2005 in the case of the series of fixed rate preferred stock).

       In the event of any voluntary or involuntary liquidation, dissolution or
  winding up of PSI, the holders of each of the series of Senior Preferred Stock
  will be entitled to receive out of PSI's assets available for distribution to
  stockholders, before any distribution of assets is made to holders of Common
  Stock or any other shares of capital stock ranking as to such distributions
  junior to the Senior Preferred Stock (including both series of convertible
  preferred stock), liquidating distributions in the amount of $25.00 per share,
  plus all accrued and unpaid dividends.

       Except as expressly required by law and in certain other limited
  circumstances, the holders of the Senior Preferred Stock are not entitled to
  vote.  The consent of holders of at least 66 2/3% of the outstanding shares
  of the Senior Preferred Stock (and any other series of preferred stock ranking
  on a parity therewith), voting as a single class, is required to authorize
  another class of shares senior to such preferred stock.

       In all respects, each of the series of convertible preferred stock ranks
  on a parity with each other and is senior to the Common Stock.  One of the
  series of the convertible preferred stock (i) has a stated value of $25.00 per
  share, (ii) in preference to the holders of shares of the Common Stock and any
  other capital stock ranking junior to the convertible preferred stock as to
  payment of dividends, provides for cumulative quarterly dividends at an annual
  rate of 8.25% of the stated value thereof, (iii) is convertible at the option
  of the holder at any time into Common Stock at a conversion price of 1.6835
  shares of Common Stock for each share of such convertible preferred stock
  (subject to adjustment in certain circumstances) and (iv) after July 1, 1998,
  under certain circumstances, is redeemable for Common Stock at the option of
  PSI, in whole or in part, at a redemption price of 1.6835 shares of Common
  Stock for each share of such convertible preferred stock (subject to
  adjustment in certain circumstances).

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<PAGE>
 
       The other series of convertible preferred stock (i) has no stated value,
  (ii) in preference to the holders of shares of the Common Stock and any other
  capital stock ranking junior to the convertible preferred stock as to payment
  of dividends, provides for dividends at a rate adjustable quarterly with a
  minimum annual rate of 5% per year of the minimum liquidation preference,
  (iii) is convertible at the option of the holder at any time into Common Stock
  at a conversion price adjustable quarterly and (iv) on June 30, 2002 will be
  automatically converted into Common Stock at a conversion price determined as
  of the time of conversion.

       In the event of any voluntary or involuntary liquidation, dissolution or
  winding up of PSI, the holders of the convertible preferred stock will be
  entitled to receive out of PSI's assets available for distribution to
  stockholders, before any distribution of assets is made to holders of Common
  Stock or any other shares of capital stock ranking as to such distributions
  junior to the convertible preferred stock, liquidating distributions (i) in
  the amount of $25.00 per share, plus all accrued and unpaid dividends, in the
  case of one of the series of convertible preferred stock and (ii) a minimum
  liquidation preference of $31,200,000, plus all accrued and unpaid dividends,
  in the case of the other series of convertible preferred stock.

       Except as expressly required by law and in certain other limited
  circumstances, the holders of the convertible preferred stock are not entitled
  to vote.  The consent of holders of at least 66 2/3% of the outstanding
  shares of one of the series of convertible preferred stock and at least 50% of
  the outstanding shares of the other series is required to authorize another
  class of shares senior to the convertible preferred stock and junior to the
  Senior Preferred Stock.

  Effects of Issuance of Capital Stock

            The issuance of PSI Common Stock and the issuance of preferred stock
  with special voting rights could be used to deter attempts by a single
  shareholder or group of shareholders to obtain control of PSI in transactions
  not approved by the Board of Directors.  PSI has no intention to issue PSI
  Common Stock or the preferred stock for such purposes.

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<PAGE>
 
                  DISSENTING SHAREHOLDERS' RIGHTS OF APPRAISAL

       Pursuant to Chapter 13 of the California General Corporation Law
  ("Chapter 13"), a holder of shares of PSP9 or PSBP Common Stock may, in some
  instances, be entitled to require PSP9 or PSBP to purchase his or her shares
  in the respective corporation for cash at their fair market value as of the
  day before the first announcement of the terms of the Mergers, excluding any
  appreciation or depreciation in consequence of the Mergers.  The general terms
  of the Mergers were first announced on December 14, 1995.  The following is a
  brief summary of the procedures to be followed by a PSP9 or PSBP Shareholder
  in order to perfect his or her right, if any, to payments under Chapter 13 and
  is qualified in its entirety by reference to the text of Chapter 13 attached
  to this Joint Proxy Statement and Prospectus as Appendix D, to which reference
  is hereby made for a definitive statement of the rights of dissenting
  shareholders (the "Dissenting Shareholders") and the procedures to be
  followed.

       Shares of PSP9 and PSBP Common Stock will qualify as Dissenting Shares
  only if demands for payment are filed with respect to 5% or more of the
  outstanding shares of PSP9 and PSBP Common Stock, respectively.  This 5%
  requirement is applicable because PSP9 and PSBP Common Stock is listed on the
  AMEX, a national securities exchange certified by the California Commissioner
  of Corporations, as provided in Section 1300(b)(1) of Chapter 13.

       A Dissenting Shareholder who wishes to require PSP9 or PSBP to purchase
  his or her respective shares of common stock must:

            (1) vote against the respective Merger any or all of the shares of
       common stock entitled to be voted (shares of common stock not voted are
       not considered to be voted against the Mergers and will not be counted
       toward the 5% minimum for Dissenters' Rights to exist); provided that if
       a PSP9 or PSBP Shareholder votes part of the shares entitled to be voted
       in favor of the respective Merger, and fails to specify the number of
       shares voted, it is conclusively presumed under California law that such
       shareholder's approving vote is with respect to all shares entitled to be
       voted;

            (2) make written demand upon the respective corporation or its
       transfer agent at the addresses listed below, which is received not later
       than the date of the meeting of shareholders, setting forth the number of
       shares of common stock demanded to be purchased by the respective
       corporation and a statement as to claimed fair market value of such
       shares at December 13, 1995; and

            (3) submit for endorsement, within 30 days after the date on which
       the notice of approval of the Mergers by the shareholders of the
       respective corporation described below is mailed to such shareholders, to
       the respective corporation or its transfer agent at the addresses listed
       below, the certificates representing any shares in regard to which demand
       for purchase is being made, or to be exchanged for certificates of
       appropriate denominations so endorsed, with a statement that the shares
       are Dissenting Shares.

       The statement of fair market value in clause (2) above will constitute an
  offer by the Dissenting Shareholder to sell his or her shares at a price equal
  to such fair market value.  Neither a vote against approval of the Mergers nor
  the giving of a proxy directing a negative vote will be sufficient to
  constitute the demand described in clause (2) above.   A proxy which fails to
  include instructions with respect to approval of the Mergers will be voted in
  favor of the Mergers.  Accordingly, shares covered by such a proxy will not be
  Dissenting Shares.  In addition, a vote in favor of the Mergers, or a failure
  to vote at all, will nullify any previously filed written demand for payment.

       If the holders of 5% or more of the outstanding shares of PSP9 or PSBP
  Common Stock have made demands for payment on or prior to the date of the
  respective corporation's shareholders' meeting to approve the Mergers, and
  have voted against the respective Merger at the meeting, within 10 days after
  the date of the approval of the respective Merger, the respective corporation
  will mail to each Dissenting Shareholder who holds common stock a notice of
  such approval together with a statement of the price determined by the
  respective corporation to represent the fair market value of Dissenting
  Shares, a copy of certain sections of Chapter 13, and a brief description of
  the procedure to be

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<PAGE>
 
  followed if the shareholder desires to exercise Dissenter's Rights.  The
  statement of price will constitute an offer by the respective corporation to
  purchase at the price stated therein any Dissenting Shares.

       If the respective corporation and the Dissenting Shareholder agree that
  any shares of common stock of the respective corporation are Dissenting Shares
  and agree upon the price of the shares, the Dissenting Shareholder will be
  entitled to the agreed price plus interest thereon at the legal rate on
  judgments from the date of such agreement.  Subject to the provisions of the
  California General Corporation Law, payment of the fair market value of the
  Dissenting Shares will be made within 30 days after such agreement or within
  30 days after any statutory or contractual conditions to the respective Merger
  are satisfied, whichever is later.  If the respective corporation denies that
  the shares are Dissenting Shares or if the respective corporation and the
  Dissenting Shareholder fail to agree upon the fair market value of the shares,
  then the Dissenting Shareholder, within six months after the date on which
  notice of approval of the respective Merger by the shareholders of the
  respective corporation is mailed to such shareholder, and not thereafter, may
  file a complaint in the Superior Court of Los Angeles County, California,
  requiring the court to determine whether the shares are Dissenting Shares, or
  the fair market value of the Dissenting Shares, or both, or may intervene in
  any pending action for the appraisal of any shares of common stock of the
  respective corporation.  The court will direct payment of the appraised value
  of the shares, together with interest thereon at the legal rate on judgments
  from the date on which the judgment was entered, by the respective corporation
  to the shareholder upon the surrender of the certificates representing such
  shares to the respective corporation.  The costs of the proceeding shall be
  apportioned as the  court considers equitable, but if the appraisal exceeds
  the price offered by the respective corporation, it shall pay the costs, and
  if the appraisal is more than 125% of the price offered by it, it may be
  required to pay attorneys' and other fees and interest at the legal rate on
  judgments from the date the shareholder complied with Sections 1300-1302 of
  Chapter 13.

       A Dissenting Shareholder may not withdraw demand for purchase of
  Dissenting Shares without the respective corporation's consent.  Written
  demands for payment and submissions for endorsement with respect to PSP9
  Common Stock must be addressed to Public Storage Properties IX, Inc., 600
  North Brand Boulevard, Suite 300, Glendale, California 91203-1241, attention:
  Investor Services Department or to PSP9's transfer agent, American Stock
  Transfer & Trust Company, 40 Wall Street, New York, New York 10005.  Written
  demands for payment and submissions for endorsement with respect to PSBP
  Common Stock must be addressed to PS Business Parks, Inc., 600 North Brand
  Boulevard, Suite 300, Glendale, California 91203-1241, attention:  Investor
  Services Department or to PSP9's transfer agent, American Stock Transfer &
  Trust Company, 40 Wall Street, New York, New York 10005.

       Any reference to "Dissenting Shareholder" in this section "Dissenting
  Shareholders' Rights of Appraisal" means the recordholder of Dissenting Shares
  of the respective corporation and includes a transferee of record.

       A shareholder receiving cash upon the exercise of rights of appraisal may
  recognize gain or loss for income tax purposes.  See "Certain Federal Income
  Tax Matters."

            PSP9 and PSBP Shareholders are entitled, upon written demand, to
  inspect and copy the record of PSP9 or PSBP Shareholders, respectively, at any
  time during usual business hours to communicate with other shareholders of
  their respective corporation with respect to the Mergers.

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<PAGE>
 
                       CERTAIN FEDERAL INCOME TAX MATTERS

       The following discussion summarizes the material federal income tax
  considerations of the Mergers and the subsequent ownership and disposition of
  shares of PSI Common Stock that are generally applicable to PSP9 and PSBP
  Shareholders.  PSP9, PSBP and PSI do not plan to obtain any rulings from the
  Internal Revenue Service ("IRS") concerning tax issues with respect to the
  Mergers or the qualification of PSP9, PSBP or PSI as REITs.  Thus, no
  assurance can be provided that the statements set forth herein (which do not
  bind the IRS or the courts) will not be challenged by the IRS or will be
  sustained if so challenged.  Hogan & Hartson L.L.P., counsel to PSP9 and PSBP,
  has reviewed the following discussion and is of the opinion that this
  discussion fairly summarizes the material federal income tax considerations to
  a PSP9 and PSBP Shareholder as a result of the PSP9 Merger and the PSBP
  Merger, respectively, and the subsequent ownership of PSI Common Stock.  This
  discussion and such opinion are based on the Code, applicable Treasury
  Regulations, judicial decisions, and IRS rulings, certain factual assumptions
  related to the ownership and operation of PSP9, PSBP and PSI and certain
  representations made by PSP9, PSBP, PSI and certain shareholders of PSP9 and
  PSBP.  There can be no assurance that the legal authorities on which this
  discussion is based will not change, perhaps retroactively, that the factual
  assumptions underlying this discussion will be accurate, or that there will
  not be a change in the future in the circumstances of PSP9, PSBP and PSI that
  would affect this discussion.  BECAUSE THIS DISCUSSION DOES NOT DEAL WITH ALL
  ASPECTS OF FEDERAL TAXATION, AND THE TAX CONSEQUENCES WILL NOT BE THE SAME FOR
  ALL PSP9 AND PSBP SHAREHOLDERS, PSP9 AND PSBP SHAREHOLDERS SHOULD CONSULT
  THEIR OWN TAX ADVISORS WITH SPECIFIC REFERENCE TO THEIR OWN TAX SITUATIONS,
  INCLUDING THE APPLICATION AND EFFECT OF STATE, LOCAL, AND FOREIGN TAX LAWS.

  The Mergers

       Each of the Mergers is intended to be a "reorganization" for federal
  income tax purposes, and accordingly no gain or loss will be recognized by
  PSP9 or PSI in connection with the PSP9 Merger, or PSBP or PSI in connection
  with the PSBP Merger; and (I) no gain or loss will be recognized by PSP9
  Shareholders who receive solely PSI Common Stock in exchange for their PSP9
  Common Stock in the PSP9 Merger (but all PSP9 Shareholders will recognize
  ordinary income in the amount of any Required PSP9 REIT Distributions made to
  them) and (II) no gain or loss will be recognized by PSBP Shareholders who
  receive solely PSI Common Stock in exchange for their PSBP Common Stock in the
  PSBP Merger (but all PSBP Shareholders will recognize ordinary income in the
  amount of any Required PSBP REIT Distributions made to them).  No rulings have
  been or will be requested from the IRS regarding the Mergers or any other
  aspect of the matters discussed in this Joint Proxy Statement and Prospectus.
  Hogan & Hartson L.L.P., counsel to PSP9 and PSBP, has rendered an opinion that
  each of the Mergers will constitute a reorganization under Section 368(a) of
  the Code, based on certain factual assumptions and representations made by
  PSP9, PSBP, PSI and certain PSP9 and PSBP Shareholders.  Of particular
  importance are certain assumptions and representations relating to the
  "continuity of interest" requirement discussed below.  The PSP9 Merger and the
  PSBP Merger are not conditioned on each other.

       Continuity of Interest Assumption.  To qualify as a reorganization as to
  either PSP9 or PSBP, among other requirements, each of the Mergers must
  satisfy a "continuity of interest" test, under which the historic PSP9 and
  PSBP Shareholders (shareholders who purchase shares in anticipation of the
  Mergers may not be included for this purpose), respectively, must continue to
  retain a meaningful ownership interest in PSI after the PSP9 Merger and the
  PSBP Merger, respectively.  Generally, this test will be considered satisfied
  if historic PSP9 Shareholders (in the case of the merger of PSP9 into PSI) or
  historic PSBP Shareholders (in the case of the merger of PSBP into PSI)
  exchange at least 50% of their respective corporation's common stock for PSI
  Common Stock in the PSP9 Merger and the PSBP Merger, respectively, and the
  PSP9 Shareholders and the PSBP Shareholders do not at the time of the PSP9
  Merger and the PSBP Merger, respectively, plan to dispose of that PSI Common
  Stock.  Management of PSP9, PSBP and PSI have represented that they are not
  aware of any plan on the part of either PSP9 or PSBP Shareholders that would
  cause this test not to be satisfied.  Based upon this representation and
  similar representations from Hughes, Hogan & Hartson has assumed, for purposes
  of its opinion, that each of the Mergers will constitute a reorganization, and
  that the continuity of interest test will be satisfied in each of the Mergers.

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<PAGE>
 
       Reorganization Consequences to PSP9, PSBP and PSI.  As a result of
  reorganization treatment, PSP9, PSBP and PSI will not recognize gain or loss
  because of the Mergers.  PSI will also succeed to the assets, liabilities, and
  tax attributes of each of PSP9 and PSBP.  Accordingly, following the Mergers,
  PSI will hold the properties of each of PSP9 and PSBP with a carryover tax
  basis, determined by reference to the relatively low, historic basis of those
  assets in the hands of PSP9 and PSBP, respectively.  The tax basis will not be
  increased by any cash expended by PSI pursuant to the Cash Elections or to
  satisfy dissenter's rights, or by the amount of any gain reportable by those
  PSP9 or PSBP Shareholders who may be taxable as a result of the transaction.

       Exchange of PSP9 or PSBP Common Stock Solely for PSI Common Stock.  As a
  result of reorganization treatment (I) (i) no gain or loss will be recognized
  by PSP9 Shareholders who exchange their PSP9 Common Stock solely for PSI
  Common Stock pursuant to the PSP9 Merger (but see "Required REIT
  Distributions" below), and (ii) such a shareholder's aggregate tax basis in
  the PSI Common Stock received will be the same as the aggregate tax basis of
  the shares of PSP9 Common Stock surrendered, and (iii) provided such PSP9
  Common Stock is held as a capital asset at the Effective Time, the holding
  period of the PSI Common Stock will include the holding period of the
  surrendered PSP9 Common Stock and (II) (i) no gain or loss will be recognized
  by PSBP Shareholders who exchange their PSBP Common Stock solely for PSI
  Common Stock pursuant to the PSBP Merger (but see "Required REIT
  Distributions" below), and (ii) such a shareholder's aggregate tax basis in
  the PSI Common Stock received will be the same as the aggregate tax basis of
  the shares of PSBP Common Stock surrendered, and (iii) provided such PSBP
  Common Stock is held as a capital asset at the Effective Time, the holding
  period of the PSI Common Stock will include the holding period of the
  surrendered PSBP Common Stock.

       PSP9 or PSBP Shareholders Receiving Only Cash.  A PSP9 Shareholder who
  exchanges PSP9 Common Stock only for cash (whether pursuant to and subject to
  the conditions of the Cash Election, or as a result of the exercise of
  dissenters' rights) will be taxed on the difference between such shareholder's
  adjusted basis in his or her PSP9 Common Stock and the amount of cash
  received.  A PSBP Shareholder who exchanges PSBP Common Stock only for cash
  (whether pursuant to and subject to the conditions of the Cash Election, or as
  a result of the exercise of dissenters' rights) will be taxed on the
  difference between such shareholder's adjusted basis in his or her PSBP Common
  Stock and the amount of cash received.  This generally would produce capital
  gain or loss, depending on the relationship between the cash received and the
  tax basis of the shares surrendered (it is possible that dividend treatment
  might apply in some circumstances if the shareholder is actually or
  constructively related to continuing shareholders of PSI).

       PSP9 or PSBP Shareholders Receiving Cash and PSI Common Stock.  As a
  result of reorganization treatment (I) (i) a PSP9 Shareholder who, pursuant to
  the PSP9 Merger and subject to the conditions of the Cash Election, exchanges
  PSP9 Common Stock for a combination of PSI Common Stock and cash will not
  recognize any loss realized on such exchange, and (ii) such shareholder will
  recognize gain only to the extent of the lesser of the amount of cash received
  or the excess of the fair market value of the PSI Common Stock and cash
  received over such shareholder's tax basis in the PSP9 Common Stock
  surrendered and (II) (i) a PSBP Shareholder who, pursuant to the PSBP Merger
  and subject to the conditions of the Cash Election, exchanges PSBP Common
  Stock for a combination of PSI Common Stock and cash will not recognize any
  loss realized on such exchange, and (ii) such shareholder will recognize gain
  only to the extent of the lesser of the amount of cash received or the excess
  of the fair market value of the PSI Common Stock and cash received over such
  shareholder's tax basis in the PSBP Common Stock surrendered.  The recognized
  gain will be treated as capital gain (provided the common stock is held as a
  capital asset at the Effective Time).  The aggregate tax basis of the PSI
  Common Stock received will be the same as the aggregate tax basis of the
  common stock surrendered for the PSI Common Stock, reduced by the amount of
  cash received and increased by the amount of gain recognized, if any.  The
  holding period of the PSI Common Stock will include the holding period of the
  common stock surrendered for the PSI Common Stock, provided that the common
  stock is held as a capital asset at the Effective Time.

       Required REIT Distributions.  The PSP9 Required REIT Distribution and the
  PSBP Required REIT Distribution would not be treated as cash paid in exchange
  for the PSP9 Common Stock or PSBP Common Stock, but rather as a dividend
  taxable to all recipients as ordinary income.

       Cash Received in Lieu of Fractional Shares of PSI Common Stock.  PSP9 or
  PSBP Shareholders that receive cash in lieu of a fractional share of PSI
  Common Stock pursuant to the Mergers will recognize capital gain or loss equal

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  to the difference between the tax basis allocable to the fractional share and
  the cash paid for it, provided that the PSP9 or PSBP Common Stock is held as a
  capital asset as the Effective Time.

       Failure to Qualify for Reorganization Treatment.  In the event that the
  Mergers do not qualify as a reorganization as to either PSP9 or PSBP, the
  Mergers likely would be treated as a taxable sale by the respective
  corporation of its assets and a contemporaneous liquidation.  The respective
  corporation presumably would not incur a federal income tax liability as a
  result of this deemed sale because of the contemporaneous deemed liquidating
  distribution.  The shareholders of the respective corporation would recognize
  income or loss equal to the difference between the tax basis of their PSI
  Common Stock and the sum of the fair market value of the PSI Common Stock and
  the cash received in exchange for their common stock, but some of the income
  could be ordinary income.  The shareholders of the respective corporation
  receiving PSI Common Stock would have a tax basis in those shares equal to the
  fair market value of the shares at the time of the Mergers, and the holding
  period would not include the period during which their shares of common stock
  were held.  PSI would receive a basis in the properties acquired from the
  respective corporation equal to their fair market value.

  Opinion of Counsel

       Hogan & Hartson L.L.P., counsel to PSP9 and PSBP, has rendered an opinion
  to PSP9 with respect to the PSP9 Merger and PSBP with respect to the PSBP
  Merger to the effect that (i) for federal income tax purposes, the respective
  Mergers will constitute a reorganization under Section 368(a) of the Code,
  (ii) PSI will continue to qualify as a REIT following the PSMI Merger so long
  as (A) PSI continues to meet the stock ownership and gross income requirements
  applicable to REITs and (B) either PSMI at the time of the Mergers is not
  considered to have any current or accumulated earnings and profits for tax
  purposes or PSI made distributions prior to the end of 1995 in an amount
  sufficient to eliminate such earnings and profits, and (iii) the discussion
  under the heading "Certain Federal Income Tax Matters" fairly summarizes the
  federal income tax considerations that are material to PSP9 and PSBP
  Shareholders, respectively, as a result of the respective Mergers and the
  subsequent ownership of PSI Common Stock (the "Opinion of Counsel").  Hogan &
  Hartson has not opined that PSI will continue to meet the stock ownership and
  gross income requirements applicable to REITs following the PSMI Merger or
  that PSMI did not have current or accumulated earnings and profits at the time
  of the PSMI Merger, due to the numerous factual determinations and future
  events that bear on those conclusions.  The Opinion of Counsel is based upon
  certain extensive and detailed representations as to factual and legal matters
  made by PSI, PSP9 and PSBP that relate both to the qualification of PSI as a
  REIT and to the qualification of the Mergers as reorganizations, and specific
  representations from Hughes regarding the expected continued ownership of PSI
  Common Stock to be received in each of the Mergers.  In addition, as discussed
  above, the Opinion of Counsel expressly assumes, based upon certain
  representations of the management of PSI, PSP9 and PSBP, that the "continuity
  of interest" requirement necessary for each of the Mergers to qualify as
  reorganizations will be satisfied.  See "The Mergers -- Continuity of Interest
  Assumption" and "The Mergers -- Failure to Qualify for Reorganization
  Treatment."  The Opinion of Counsel also makes certain customary assumptions
  regarding the accuracy and completeness of documents reviewed by counsel and
  representations relied upon by counsel and as to the consummation of each of
  the Mergers in accordance with the terms of each of the Merger Agreements.
  The Opinion of Counsel states that the conclusion set forth therein could be
  adversely affected if any of these representations or assumptions is incorrect
  or incomplete at the time that either of the Mergers are consummated.  The
  Opinion of Counsel only represents counsel's best judgment, based upon the
  underlying representations and assumptions, regarding the application of
  relevant provisions of the Code and interpretations thereof, as set forth in
  existing judicial decisions, administrative regulations and published rulings
  and procedures of the Internal Revenue Service.  The Opinion of Counsel is not
  binding upon the Internal Revenue Service or the courts, and there can be no
  assurance that the Internal Revenue Service would not seek to assert a
  contrary position.  Also, there cannot be any assurance that future
  legislative, judicial or administrative changes (which could be retroactive in
  effect) will not adversely affect the conclusions reached in the Opinion of
  Counsel.  Finally, the Opinion of Counsel is expressly limited to the specific
  conclusions described in the first sentence of this section and does not
  purport to address any other federal, state, local or foreign tax consequences
  that may result from the Mergers or any other transaction (including the tax
  consequences of either of the Mergers as applied to specific shareholders of
  PSP9 or PSBP (or classes of shareholders of PSP9 or PSBP); the tax
  consequences of either of the Mergers to PSP9, PSBP or PSI (including whether
  any entity will recognize any gain in either of the Mergers and PSI's adjusted
  tax basis in the assets of PSP9 and PSBP acquired in the Mergers); the
  application of the "golden parachute" provisions, the alternative minimum tax
  provisions, and any

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  other provisions of the Code (other than Section 368(a) of the Code) to either
  of the Mergers and/or participants therein; and whether shareholders of PSP9
  or PSBP who have provided or will provide services to PSP9, PSBP or PSI will
  recognize compensation income, either as a result of either of the Mergers or
  otherwise).

  General Tax Treatment of PSI

       If certain detailed conditions imposed by the Code and the related
  regulations are met, an entity, such as PSI, that invests principally in real
  estate and that otherwise would be taxed as a corporation may elect to be
  treated as a REIT.  The most important consequence to PSI of being treated as
  a REIT for federal income tax purposes is that this enables PSI to deduct
  dividend distributions to its shareholders, thus effectively eliminating the
  "double taxation" (at the corporate and shareholder levels) that typically
  results when a corporation earns income and distributes that income to
  shareholders in the form of dividends.

       PSI elected to be taxed as a REIT beginning with its fiscal year ending
  December 31, 1981.  That election will continue in effect until it is revoked
  or terminated.  PSI believes that it has qualified during each of the past
  five fiscal years, and currently qualifies, as a REIT.  While PSI intends to
  operate so that it will continue to qualify as a REIT, given the highly
  complex nature of the rules governing REITs, the ongoing importance of factual
  determinations, and the possibility of future changes in the circumstances of
  PSI, no assurance can be given by PSI that PSI will so qualify for any
  particular year.

       The following is a very brief overview of certain of the technical
  requirements that PSI must meet on an ongoing basis in order to continue to
  qualify as a REIT:

     1.  The capital stock must be widely-held and not more than 50% of the
  value of the capital stock may be held by five or fewer individuals
  (determined after giving effect to various ownership attribution rules).  See
  "-- Consequences of the PSMI Merger on PSI's Qualification as a REIT --
  Violation of Ownership Limitations."

     2.  PSI's gross income must meet three income tests:

         (a)   at least 75% of the gross income must be derived from specified
               real estate sources;

         (b)   at least 95% of the gross income must be from the real estate
               sources includable in the 75% income test, and/or from dividends,
               interest, or gains from the sale or disposition of stock or
               securities not held for sale in the ordinary course of business;
               and

         (c)   less than 30% of the gross income may be derived from the sale of
               real estate assets held for less than four years, from the sale
               of certain "dealer" property, or from the sale of stock or
               securities held for less than one year.

     Rents received by PSI will qualify as "rents from real property" in
  satisfying the gross income requirements described above only if several
  conditions are met.  First, the amount of rent must not be based in whole or
  in part on the income or profits of any person.  However, an amount received
  or accrued generally will not be excluded from the term "rents from real
  property" solely by reason of being based on a fixed percentage or percentages
  of receipts of sales.  PSI anticipates that none of its gross annual income
  will be attributable to rents that are based in whole or in part on the income
  of any person (excluding rents based on a percentage of receipts or sales,
  which, as described above, are permitted).  Second, the Code provides that
  rents received from a tenant will not qualify as "rents from real property" if
  PSI, or an owner of 10% or more of PSI, directly or constructively owns 10% or
  more of such tenant (a "Related Party Tenant").  PSI does not anticipate that
  it will receive income from Related Party Tenants.  Third, if rent
  attributable to personal property, leased in connection with a lease of real
  property, is greater than 15% of the total rent received under the lease, then
  the portion of rent attributable to such personal property will not qualify as
  "rents from real property."  PSI does not anticipate deriving rent
  attributable to personal property leased in connection with real property that
  exceeds 15% of the total rents.  Finally, for rents received to qualify as
  "rents from real property," PSI generally must not operate or manage the
  property or furnish or render services to tenants, other than through an
  "independent contractor" which is adequately compensated and from whom PSI
  derives no revenue.  The "independent contractor" requirement, however, does
  not apply to the extent the services provided by PSI are "usually or
  customarily

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  rendered" in connection with the rental of space for occupancy only and are
  not otherwise considered "rendered to the occupant."  Any services with
  respect to certain Properties that PSI believes may not be provided by PSI
  directly without jeopardizing the qualification of rent as "rents from real
  property" will be performed by "independent contractors."

     See "-- Consequences of the PSMI Merger on PSI's Qualification as a REIT --
  PSI's Assumption of Management Activities With Respect to PSI's Properties,"
  "-- Consequences of the PSMI Merger on PSI's Qualification as a REIT --
  Nonqualifying Income," and "-- Consequences of the PSMI Merger on PSI's
  Qualification as a REIT --Acquisition of Affiliated Partnership Interests in
  the PSMI Merger" for a discussion of specific aspects of the PSMI Merger that
  may impact upon PSI's ability to satisfy the 95% gross income test following
  the PSMI Merger.

     3.  Generally, 75% by value of PSI's investments must be in real estate,
  mortgages secured by real estate, cash, or government securities (including
  its allocable share of real estate assets held by any partnerships in which
  PSI owns an interest).  Not more than 25% of PSI's total assets may be
  represented by securities other than those in the 75% asset class.  Of the
  investments included in the 25% asset class, the value of any one issuer's
  securities owned by PSI may not exceed 5% of the value of PSI's total assets,
  and PSI may not own more than 10% of any one issuer's outstanding voting
  securities.  The 5% test generally must be met for any quarter in which PSI
  acquires securities of an issuer.  PSI believes that it satisfies these tests.
  In this regard, however, the 10% voting stock prohibition will preclude PSI
  from controlling the operations of PSCP and the Lock/Box Company (in which PSI
  will own 95% of the equity in the form of non-voting stock and the Hughes
  Family will own 5% of the equity but 100% of the voting stock) or PS Clearing
  Company, Inc. ("PSCC") (in which PSI will own a less than 10% equity interest)
  and may preclude PSI from exercising its rights of first refusal with respect
  to the corporations owning the Canadian operations and the reinsurance
  business.

     4.  PSI must distribute to its shareholders in each taxable year an amount
  at least equal to 95% of PSI's "REIT Taxable Income" (which is generally
  equivalent to net taxable ordinary income).  Under certain circumstances, PSI
  can rectify a failure to meet the 95% distribution test by paying dividends
  after the close of a particular taxable year.

     PSI in years prior to 1990 made distributions in excess of its REIT Taxable
  Income.  During 1990, PSI reduced its distributions to its shareholders to
  permit PSI to make an optional reduction in short-term borrowings (which
  previously had been used to fund distributions to its Shareholders).  As a
  result, distributions paid by PSI in 1990 were less than 95% of PSI's REIT
  Taxable Income for 1990.  PSI has satisfied the REIT distribution requirements
  for 1990, 1991, 1992, 1993 and 1994 by attributing distributions in 1991,
  1992, 1993, 1994 and 1995 to the prior year's taxable income, and PSI expects
  to satisfy the distribution requirement for 1995 by attributing distributions
  in 1996 to the 1995 taxable income.  PSI may be required, over each of the
  next several years, to make distributions after the close of a taxable year
  and to attribute those distributions to the prior year, but shareholders will
  be treated for federal income tax purposes as having received such
  distributions in the taxable years in which they were actually made.  The
  extent to which PSI will be required to attribute distributions to the prior
  year will depend on PSI's operating results and the level of distributions as
  determined by the Board of Directors.  Reliance on subsequent year
  distributions could cause PSI to be subject to certain penalty taxes.  In that
  regard, if PSI should fail to distribute during each calendar year at least
  the sum of (i) 85% of its REIT ordinary income for such calendar year, (ii)
  95% of its REIT capital gain net income for such calendar year, and (iii) any
  undistributed taxable income from prior periods, PSI would be subject to a 4%
  excise tax on the excess of such required distribution over the amounts
  actually distributed during such calendar year (not taking into account
  distributions made in subsequent years but attributed to such calendar year).
  PSI intends to comply with this 85% distribution requirement in an effort to
  minimize any excise tax.  Any distributions required to be made by PSI in
  order to eliminate any accumulated earnings and profits of PSMI would not be
  counted in determining whether PSI satisfies the 95% distribution test and
  could adversely impact upon PSI's ability to satisfy the 95% distribution
  test.  See "-- Consequences of the PSMI Merger on PSI's Qualification as a
  REIT -- Elimination of Any Accumulated Earnings and Profits Attributable to
  Non-REIT Years."

     For purposes of applying the income and asset tests mentioned above, a REIT
  is considered to own a proportionate share of the assets of any partnership in
  which it holds a partnership interest.  See "-- Consequences of the PSMI
  Merger on PSI's Qualification as a REIT -- Acquisition of Affiliated
  Partnership Interests in the PSMI Merger."

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<PAGE>
 
     Applicable Federal Income Tax.  For years in which PSI qualifies as a REIT,
  PSI generally will be taxable only on its undistributed income.  Certain
  penalty taxes can apply if PSI delays distributions until after the close of a
  taxable year.  Moreover, a confiscatory tax of 100% can apply to income
  derived by PSI from sales of "dealer" property.  If PSI fails to meet either
  the 75% or 95% source of income tests described above, but still qualifies for
  REIT status under the reasonable cause exception to those tests, a 100% tax is
  imposed equal to the amount obtained by multiplying (i) the greater of the
  amount, if any, by which it failed either the 75% or the 95% income tests,
  times (ii) the fraction that its REIT Taxable Income represents of PSI's gross
  income (excluding capital gain and certain other items).  It should be noted
  that PSI is not required to distribute its net capital gain.  However, to the
  extent that PSI does not declare a capital gain dividend, that gain will be
  taxable to PSI at normal corporate rates, and PSI will be subject to a 4% 
  non-deductible excise tax to the extent that it does not distribute 95% of its
  capital gain. PSI also will be subject to the minimum tax on tax preference
  items (excluding items specifically allocable to its shareholders).

     Under the "Built-in Gain Rules" of IRS Notice 88-19, 1988-1 C.B. 486, PSI
  will be subject to a corporate level tax if it disposes of any of the assets
  acquired in the PSMI Merger at any time during the 10-year period beginning on
  the closing date of the PSMI Merger (the "Restriction Period"), assuming PSI
  makes the election pursuant to the Built-in Gain Rules (or applicable future
  administrative rules or Treasury regulations) to have the 10-year rule apply.
  This tax would be imposed on PSI at the top regular corporate rate (currently
  35%) in effect at the time of the disposition on the excess of (i) the lesser
  of (a) the fair market value on the Closing Date of the assets disposed of and
  (b) the selling price of such assets over (ii) PSI's adjusted basis in such
  assets at the time of the PSMI Merger (such excess being referred to as the
  "Built-in Gain").  PSI currently does not intend to dispose of any of the
  assets acquired in the Merger during the Restriction Period, but there can be
  no assurance that one or more such dispositions will not occur.  If PSI does
  not make the election to have the 10-year rule apply, PSMI would be taxed on
  the Built-in Gain at the time of the PSMI Merger at regular corporate tax
  rates and PSI, as the successor to PSMI in the PSMI Merger, would succeed to
  the liability for that tax.

     Termination of REIT Election.  For any taxable year that PSI fails to
  qualify as a REIT, it would be taxed at the usual corporate rates on all of
  its taxable income, whether or not it makes any distributions to its
  shareholders.  Those taxes would reduce the amount of cash available to PSI
  for distribution to its shareholders.  As a result, failure of PSI to qualify
  during any taxable year as a REIT could have a material adverse effect upon
  PSI and its shareholders, unless certain relief provisions are available.

     PSI's election to be treated as a REIT will terminate automatically if PSI
  fails to meet the qualification requirements described above.  If a
  termination (or a voluntary revocation) occurs, unless certain relief
  provisions apply, PSI will not be eligible to elect REIT status again until
  the fifth taxable year that begins after the first year for which PSI's
  election was terminated (or revoked).  If PSI loses its REIT status, but later
  qualifies and elects to be taxed as a REIT again, PSI may face significant
  adverse tax consequences. Immediately prior to the effectiveness of the
  election to return to REIT status, PSI would be treated as if it disposed of
  all of its assets in a taxable transaction, triggering taxable gain with
  respect to PSI's appreciated assets.  (PSI would, however, be permitted to
  elect an alternative treatment under which the gains would be taken into
  account only as and when they actually are recognized upon sales of the
  appreciated property occurring within the 10-year period after return to REIT
  status.)  PSI would not receive the benefit of a dividends paid deduction to
  reduce any such taxable gains. Thus, any such gains on appreciated assets
  would be subject to double taxation, at the corporate as well as the
  shareholder level.

  Consequences of the PSMI Merger on PSI's Qualification as a REIT

     In light of the unique federal income tax requirements applicable to REITs,
  the PSMI Merger could have adverse consequences on PSI's continued
  qualification as a REIT, as discussed in greater detail below.  Hogan &
  Hartson L.L.P. is of the opinion that PSI will continue to qualify as a REIT
  following the PSMI Merger so long as (A) PSI has met at all times since the
  PSMI Merger and continues to meet the stock ownership and gross income
  requirements applicable to REITs and (B) either PSMI at the time of (and
  giving effect to) such merger was not considered to have any current or
  accumulated earnings and profits for tax purposes or PSI made distributions
  prior to the end of 1995 in an amount sufficient to eliminate such earnings
  and profits.  See "-- Nonqualifying Income," "-- Violation of Ownership
  Requirements," and "-- Elimination of Any Accumulated Earnings and Profits
  Attributable to Non-REIT Years."  Hogan & Hartson L.L.P., however, has not
  opined that PSI will continue to meet the stock

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  ownership and gross income requirements applicable to REITs following the PSMI
  Merger or that PSMI did not have current or accumulated earnings and profits
  at the time of the PSMI Merger, due to the numerous factual determinations and
  future events that bear on those conclusions.

     PSI's Assumption of Management Activities With Respect to its Properties.
  Because of the unique federal income tax requirements attributable to REITs, a
  number of federal income tax issues must be addressed in connection with the
  PSMI Merger that are unique to PSI's status as a REIT.  One issue is whether
  PSI is permitted to perform property management functions internally with
  respect to the mini-warehouse and business park properties ("Properties") it
  owns.  Generally, a REIT is permitted to perform services with respect to
  properties it rents to tenants so long as such services are usually and
  customarily rendered in connection with the rental of space for occupancy only
  and are not considered to be "rendered to the occupant."  If a REIT performs
  services beyond this extent, the rental income received for the use of its
  property will not qualify as "rental income" for purposes of the REIT gross
  income tests.  See "-- Tax Treatment of PSI -- Technical Requirements for
  Taxation as a REIT."  Failure to satisfy these tests would result in the
  disqualification of PSI as a REIT.  See "-- Tax Treatment of PSI --
  Termination of REIT Election."

     As a result of the PSMI Merger, PSI "self-manages" the Properties it owns.
  PSI received a private letter ruling from the IRS to the effect that, should
  PSI acquire PSMI and assume and perform the management activities of its
  Properties, such property management activities by PSI would not adversely
  affect the characterization of PSI's rents from the Properties as rents from
  real property.  The ruling is based on PSI's description of those management
  activities to be performed in connection with its own Properties, including
  maintenance, repair, lease administration and accounting, and security.  The
  ruling also considers the ancillary activities to be directly performed by the
  Lock/Box Company, such as the sale of inventory products such as locks, boxes,
  and packing materials.

     Nonqualifying Income.  PSI must meet several annual gross income tests to
  retain its REIT qualification.  See "-- Tax Treatment of PSI -- Technical
  Requirements for Taxation as a REIT."  Under the 95% gross income test, PSI
  must derive at least 95% of its total gross income from specified classes of
  income related to real property, dividends, interest or gains from the sale or
  other disposition of stock or other securities that do not constitute "dealer
  property."  Income related to real property includes: (i) proceeds from the
  rental of mini-warehouse facilities; (ii) interest on obligations secured by
  mortgages on real property; and (iii) gains from the sale or other disposition
  of real property (other than real property held by PSI as a dealer).

     After the merger with PSMI, PSI assumed and performs property management
  activities for the various partnerships and REITs in which PSI has an interest
  that own Properties, as well as for various other entities that own mini-
  warehouse properties and/or business parks.  PSI will receive management fees
  from such partnerships, REITs, and other owners in exchange for the
  performance of such management activities.  The gross income received by PSI
  from these property management activities with respect to Properties owned by
  other entities (including the REITs in which PSI has an ownership interest)
  and advisory services rendered to such other entities will be treated as
  income not qualifying under the 95% test ("Nonqualifying Income").  See "--
  Acquisition of Affiliated Partnership Interests in the PSMI Merger."  If there
  were no change in current revenues of PSI through acquisitions or otherwise
  and no other action by PSI to reduce its nonqualifying income (for example,
  through the prepayment of management fees described below), PSI estimates that
  it would not satisfy the 95% gross income test for 1996 because its
  nonqualifying income would represent approximately 7% of its total gross
  income for 1996.  However, the percentage of Nonqualifying Income may be
  reduced in a variety of ways.  First, PSI could reduce the actual dollar
  amount of its Nonqualifying Income.  Second, because the income tests are
  based on a percentage of total gross income, increases in overall gross income
  that result from increases in qualifying rents will reduce the percentage of
  Nonqualifying Income.  Pursuant to PSI's existing acquisition program,
  additional assets may be acquired by it during 1996 that would generate
  additional qualifying income, thereby lowering the percentage of total
  Nonqualifying Income recognized by it.  Finally, to the extent that PSI
  acquires properties following the PSMI Merger for which it assumed management
  responsibilities in connection with the PSMI Merger (such as the mergers with
  PSP9), the management fees received with respect to such properties would
  cease to be Nonqualifying Income.  Nevertheless, there can be no assurance
  that future acquisitions will be made in amounts or at such times to permit
  PSI to satisfy these gross income requirements.  Moreover, increases in other
  Nonqualifying Income may similarly affect these calculations.

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     If PSI determines at any time during the year that the receipt of third-
  party management fees could adversely affect its ability to satisfy the 95%
  test, it will notify the third-party property owners to which it provides
  property management services and request that management fees be paid at
  reduced rates for the remainder of the year.  PSI will, to the extent possible
  under existing tax guidelines, defer receipt of such fees to a succeeding year
  in which recognition of the Nonqualifying Income does not jeopardize its
  qualification as a REIT.  If such deferral is not possible, however, PSI would
  reduce the fees without condition or deferral (reduction estimated at $1.5
  million, assuming no growth and no acquisition of properties other than in the
  Mergers).  Although this measure would reduce PSI's gross income (and
  correspondingly its net profits), it would effectively reduce PSI's overall
  Nonqualifying Income and preserve its REIT status.  PSI anticipates that this
  measure will be taken only as necessary and intends to pursue less costly
  alternatives when appropriate.

     In addition, in order to reduce the amount of Nonqualifying Income, in
  December 1995, certain Properties pre-paid to PSI approximately $4.5 million
  of management fees that PSI otherwise would have been expected to receive for
  1996 discounted to compensate for early payment.  Pre-payment of management
  fees reduced the percentage of Nonqualifying Income received by PSI in taxable
  years subsequent to such prepayment.  Hogan & Hartson L.L.P. is of the opinion
  that it is more likely than not that the IRS would respect the inclusion of
  the prepaid management fees in the gross income of PSI when they are received.
  Hogan & Hartson's opinion is based on numerous cases where courts have upheld
  the IRS's position that fees should be included in income when they are
  received, rather than when the services to which such fees relate are
  performed.  There are, however, several contrary authorities where courts,
  over the IRS's objections, have held that prepaid amounts are not included in
  income in advance of performance.  Because of these contrary authorities,
  there can be no assurance that the IRS might not assert that such management
  fees should be included in the gross income of PSI as the related management
  services are provided, rather than being included in the gross income when
  they are received.  If the IRS were to successfully challenge the treatment of
  such management fees and the inclusion of such fees in PSI's gross income
  resulted in it failing the 95% test for a taxable year ending after the PSMI
  Merger, PSI's REIT status may terminate for such year and future years unless
  it meets the "good cause" exception described above.  For years subsequent to
  1996, assuming that there were no changes in current revenues of PSI and
  assuming no acquisition or development of additional assets, PSI estimates
  that it would not be able to satisfy the 95% gross income test unless it were
  to take further steps to reduce management fees for those years (for example
  by deferring the payment of those fees until later years or by disposing of a
  portion of its management business, including possibly to a taxable
  corporation in which PSI would own substantially all of the economic interests
  but none of the voting stock).

     Finally, PSI and the various other owners of mini-warehouses and business
  parks for which PSI performs management activities (the "Owners") have entered
  into an agreement (the "Administrative and Cost-Sharing Agreement") with PSCC
  pursuant to which PSCC provides the Owners and PSI certain administrative and
  cost-sharing services in connection with the operation of the Properties and
  the performance of certain administrative functions.  Such services include
  the provisions of corporate office space and certain equipment, personnel
  required for the operation and maintenance of the properties, and corporate or
  partnership administration.  Each of the Owners and PSI pay the PSCC directly
  for services rendered by PSCC in connection with the Administrative and Cost
  Sharing Agreement.  That payment is separate from and in addition to the
  compensation paid to PSI under the management agreement for the management of
  the Properties owned by the Owners.  PSI has received a private letter ruling
  from the IRS to the effect that the reimbursements and other payments made to
  PSCC by the Owners will not be treated as revenues of PSI for purposes of the
  95% test.

     If PSI fails to meet the 95% test during any taxable year, its REIT status
  would terminate for that year and future years unless it qualifies for the
  "good cause" exception.  In order to qualify for the "good cause" exception,
  PSI would have to satisfy each of the following: (i) it reported the source
  and nature of each item of its gross income in its federal income tax return
  for such year; (ii) the inclusion of any incorrect information in its return
  is not due to fraud with intent to evade tax; and (iii) the failure to meet
  such test is due to a reasonable cause and not to willful neglect.  PSI
  intends to conduct its operations and affairs so that it meets the 95% test
  for each taxable year.  PSI also intends to operate so that, in the event it
  were to fail to meet the 95% test, it would satisfy the "reasonable cause"
  requirement of the "good cause" exception because it exercised ordinary
  business care and prudence in attempting to satisfy the 95% test (including by
  receiving opinions of counsel where appropriate).  There can be no assurance,
  however, that if PSI were unable to satisfy the 95% test, the IRS would
  necessarily agree that PSI had operated in a manner that qualifies for the
  "good cause" exception.  Furthermore, even if PSI's REIT status were not
  terminated

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<PAGE>
 
  because of the "good cause" exception, PSI still would be subject to an excise
  tax on any excess nonqualifying income.  Generally, if PSI fails the 95% test
  but still retains its qualification as a REIT under the "good cause"
  exception, it would be subject to a 100% excise tax on the amount of the
  excess nonqualifying income multiplied by a fraction, the numerator of which
  would be PSI's taxable income (computed without its distribution deduction)
  and the denominator of which would be PSI's gross income from all sources.
  This excise tax would have the general effect of causing PSI to pay all net
  profits generated from this excess nonqualifying income to the IRS.

     Violation of Ownership Requirements.  For PSI to qualify as a REIT under
  the Code, no more than 50% in value of its outstanding stock may be owned,
  directly or constructively under the applicable attribution rules of the Code,
  by five or fewer individuals (as defined in the Code to include certain
  entities) during the last half of a taxable year.  Following the PSMI Merger,
  the value of the outstanding capital stock held by the Hughes Family was
  estimated to be approximately 45%.  Accordingly, no four individuals other
  than the Hughes Family may own directly or constructively, in the aggregate,
  more than 5% of the value of outstanding stock of PSI.  In order to assist PSI
  in meeting these ownership restrictions, the Articles of Incorporation and
  Bylaws prohibit the actual or constructive ownership of more than 2.0% of the
  outstanding shares of all common stock of PSI or more than 9.9% of the
  outstanding shares of each class or series of shares of preferred stock of
  PSI.  (The Articles of Incorporation and Bylaws provide, however, that no
  person is deemed to exceed this ownership limitation solely by reason of the
  beneficial ownership of shares of any class of stock to the extent that such
  shares of stock were beneficially owned by such person at the time of the PSMI
  Merger.)  However, even with these ownership limitations, there still could be
  a violation of the ownership restrictions if four individuals unrelated to the
  Hughes Family were to own the maximum amount of capital stock permitted under
  the Articles of Incorporation.  Therefore, to further assist PSI in meeting
  the ownership restrictions, the Hughes Family entered into an agreement with
  PSI for the benefit of PSI and certain designated charitable beneficiaries
  restricting their acquisition of additional shares of PSI's capital stock and
  providing that if, at any time, for any reason, more than 50% in value of
  PSI's outstanding stock otherwise would be considered owned by five or fewer
  individuals, then a number of shares of PSI Common Stock owned by Wayne Hughes
  necessary to cure such violation will automatically and irrevocably be
  transferred to a designated charitable beneficiary.  These provisions are
  modeled after certain arrangements that the IRS has ruled in private letter
  rulings will preclude a REIT from being considered to violate the ownership
  restrictions so long as such arrangements are enforceable as a matter of state
  law and the REIT seeks to enforce them as and when necessary.  There can be no
  assurance, however, that the IRS might not seek to take a different position
  with respect to PSI (a private letter ruling is legally binding only with
  respect to the taxpayer to whom it was issued) or contend that PSI failed to
  enforce these various arrangements and, hence, there can be no absolute
  assurance that these arrangements will necessarily preserve PSI's REIT status.
  No private letter ruling has been sought by PSI from the IRS on the effect of
  these arrangements.

     Elimination of Any Accumulated Earnings and Profits Attributable to 
  Non-REIT Years. A REIT is not allowed to have accumulated earnings and profits
  attributable to non-REIT years. A REIT has until the close of its first
  taxable year in which it has non-REIT earnings and profits to distribute any
  such accumulated earnings and profits. In a corporate reorganization
  qualifying as a tax free statutory merger, the acquired corporation's current
  and accumulated earnings and profits are carried over to the surviving
  corporation. Under Treasury regulations, any earnings and profits treated as
  having been acquired by a REIT through such a merger will be treated as
  accumulated earnings and profits of a REIT attributable to non-REIT years.
  Accordingly, the accumulated earnings and profits, if any, of PSMI and its
  predecessors (including earnings and profits resulting from transactions
  undertaken in contemplation of the PSMI Merger or from the PSMI Merger itself)
  carried over to PSI in the PSMI Merger and PSI was required to distribute
  those accumulated earnings and profits prior to the close of 1995 (the year in
  which the merger occurred). Failure to do so would result in disqualification
  of PSI as a REIT (unless the "deficiency dividend" procedures described below
  apply and PSI complies with those procedures).

     The amount of the accumulated earnings and profits of PSMI acquired by PSI
  is based on the consolidated earnings and profits of PSMI (including each of
  its predecessors) through and including the date of the PSMI Merger
  ("Consolidated Accumulated Earnings").  As a condition to the merger with
  PSMI, PSI received a study prepared by PSMI of the earnings and profits of
  PSMI and its subsidiaries that showed, taking into account projected income of
  PSMI and its affiliates to and including the time of the PSMI Merger and
  distributions to the PSMI shareholders made at or prior to the time of the
  PSMI Merger, PSMI had no Consolidated Accumulated Earnings at the time of the
  PSMI Merger.  The determination of the accumulated earnings and profits
  acquired by PSI in the PSMI Merger ("Acquired

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<PAGE>
 
  Earnings") depends upon a number of factual matters related to the activities
  and operations of PSMI and its predecessors during their entire corporate
  existence and is subject to review and challenge by the IRS.  There can be no
  assurance that the IRS will not examine the tax returns of PSMI and its
  predecessors for years prior to and including the PSMI Merger and propose
  adjustments to increase their taxable income.  Because the earnings and
  profits study used to calculate the amount of Acquired Earnings is based on
  these returns, such adjustments could increase the amount of the Acquired
  Earnings.  In this regard, the IRS can consider all taxable years of PSMI and
  its predecessors as open for review for purposes of determining earnings and
  profits.

     Although not free from doubt, it appears pursuant to the recently finalized
  Treasury regulations that PSI may be able to use certain "deficiency dividend"
  procedures to distribute any Acquired Earnings that were subsequently
  determined to exist as a result of an IRS audit.  In order to use this
  "deficiency dividend" procedure, PSI would have to make an additional dividend
  distribution to its shareholders (in addition to distributions made for
  purposes of satisfying the normal REIT distribution requirements), in the form
  of cash, notes, other property, or stock in a taxable stock dividend, within
  90 days of the IRS determination.  In addition, PSI would have to pay to the
  IRS an interest charge on 50% of the Acquired Earnings that were not
  distributed prior to December 31, 1995, from the date on which its 1995 tax
  return was due to the date the IRS determination was made.  The statute and
  Treasury regulations related to the application of the "earnings and profits
  distribution" requirement to a REIT that acquires a "non-REIT" in a
  reorganization and the availability of the "deficiency dividend" procedure in
  those circumstances are not entirely clear, and there can be no assurance that
  the IRS would not take the position either that the "deficiency dividend"
  procedure is not available (in which case, PSI would cease to qualify as a
  REIT effective for its taxable year in which the PSMI Merger occurs) or,
  alternatively, that even if the procedure is available, PSI cannot qualify as
  a REIT for the taxable year in which the Merger occurs (but it could qualify
  as a REIT for subsequent years).

     Acquisition of Affiliated Partnership Interests in the PSMI Merger.  In the
  PSMI Merger, PSI acquired interests in various partnerships that own and
  operate Properties.  PSI, for purposes of satisfying its REIT asset and income
  tests, will be treated as if it directly owns a proportionate share of each of
  the assets of these partnerships.  For these purposes, under current Treasury
  regulations PSI's interest in each of the partnerships must be determined in
  accordance with its "capital interest" in such partnership.  The character of
  the various assets in the hands of the partnership and the items of gross
  income of the partnership will retain their same character in the hands of PSI
  for these purposes.  Accordingly, to the extent the partnership receives real
  estate rentals and holds real property, a proportionate share of such
  qualified income and assets will be treated as qualified rental income and
  real estate assets of PSI for purposes of determining its REIT qualification.
  It is expected that substantially all of the properties of the partnerships
  will constitute real estate assets and generate qualified rental income for
  these REIT qualification purposes.

     The acquisition of these partnership interests in the PSMI Merger created
  several issues regarding PSI's satisfaction of the 95% gross income test.
  First, PSI will earn property management fees from these partnerships.
  Existing Treasury regulations do not address the treatment of management fees
  derived by a REIT from a partnership in which the REIT holds a partnership
  interest, but the IRS has issued a number of private letter rulings holding
  that the portion of the management fee that corresponds to the REIT interest
  in the partnership in effect is disregarded in applying the 95% gross income
  test where the REIT holds a "substantial" interest in the partnership.  PSI
  expects to disregard the portion of management fees derived from partnerships
  in which it is a partner that corresponds to its interest in these
  partnerships in determining the amount of its Nonqualifying Income, and the
  estimate of PSI's prepayment of management fees set forth above was computed
  based upon this approach.  There can be no assurance, however, that the IRS
  would not take a contrary position with respect to PSI, either rejecting the
  approach set forth in the private letter rulings mentioned above or contending
  that PSI's situation is distinguishable from those addressed in the private
  letter rulings (for example, because PSI does not have a "substantial"
  interest in the partnerships).

     Second, PSI will acquire interests in certain of these partnerships that
  entitles PSI to a percentage of profits (either from operations, or upon a
  sale, or both) in excess of the percentage of total capital originally
  contributed to the partnership with respect to such interest.  Existing
  Treasury Regulations do not specifically address this situation, and it is
  uncertain, based on existing authority, how PSI's "capital interest" in these
  partnerships will be determined.  This determination is relevant because it
  affects both the percentage of the gross rental income of the partnership that
  is considered gross rental income (or qualifying income) to PSI and the
  percentage of the management fees paid to PSI that are disregarded in
  determining PSI's Nonqualifying Income.  For example, if PSI takes the
  position that it has a

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<PAGE>
 
  25% "capital interest" in a partnership (because it would receive 25% of the
  partnership's assets upon a sale and liquidation) but the IRS determines it
  only has a 1% "capital interest" (because the original holder of PSI's
  interest only contributed 1% of the total capital contributed to the
  partnership), PSI's share of the qualifying income from the partnership would
  be reduced and the portion of the management fee from the partnership that
  would be treated as Nonqualifying Income would be increased, thereby adversely
  affecting PSI's ability to satisfy the 95% gross income test.  In determining
  its "capital interest" in the various partnerships in which PSI acquired an
  interest in the PSMI Merger, PSI will determine the percentage of the
  partnership's assets that would be distributed to it if those assets were sold
  and distributed among the partners in accordance with the applicable
  provisions of the partnership agreements.  There can be no assurance, however,
  that the IRS will agree with this methodology and not contend that another,
  perhaps less favorable, method must be used for purposes of determining PSI
  "capital interests."  If that were to occur, it could adversely affect PSI's
  ability to satisfy the 95% gross income test following the PSMI Merger.

  Taxation of PSI Shareholders

     Distributions generally will be taxable to PSI Shareholders as ordinary
  income to the extent of PSI's earnings and profits. For this purpose, earnings
  and profits of PSI first will be allocated to distributions paid on preferred
  stock until an amount equal to such distributions has been allocated thereto.
  As a result, it is likely that any distributions paid on the preferred stock
  will be taxable in full as dividends to the holders of the preferred stock.
  Dividends declared during the last quarter of a calendar year and actually
  paid during January of the immediately following calendar year generally are
  treated as if received by the shareholders on December 31 of the calendar year
  during which they were declared. Distributions paid to shareholders will not
  constitute passive activity income and as a result, generally cannot be offset
  by losses from passive activities of shareholders subject to the passive
  activity rules. Distributions designated by PSI as capital gain dividends
  generally will be taxed as long-term capital gain to shareholders, to the
  extent that the distributions do not exceed PSI's actual net capital gain for
  the taxable year. Corporate shareholders may be required to treat up to 20% of
  any such capital gain dividends as ordinary income. Distributions by PSI,
  whether characterized as ordinary income or as capital gain, are not eligible
  for the 70% dividends received deduction for corporations. If PSI should
  realize a loss, shareholders will not be permitted to deduct any share of that
  loss. Future regulations may require that the shareholders take into account,
  for purposes of computing their individual alternative minimum tax liability,
  certain tax preference items of PSI.

     PSI may distribute cash in excess of its net taxable income.  Upon
  distribution of such cash by PSI to shareholders (other than as a capital gain
  dividend), if all of PSI's current and accumulated earnings and profits have
  been distributed, the excess cash will be deemed to be a non-taxable return of
  capital to each shareholder to the extent of the adjusted tax basis of the
  shareholder's capital stock.  Distributions in excess of the adjusted tax
  basis will be treated as gain from the sale or exchange of the capital stock.
  A shareholder who has received a distribution in excess of current and
  accumulated earnings and profits of PSI may, upon the sale of the capital
  stock, realize a higher taxable gain or a smaller loss because the basis of
  PSI Common Stock as reduced will be used for purposes of computing the amount
  of the gain or loss.  Generally, gain or loss realized by a shareholder upon
  the sale of capital stock will be reportable as capital gain or loss.  If a
  shareholder receives a long-term capital gain dividend from PSI and has held
  the capital stock for six months or less, any loss incurred on the sale or
  exchange of the capital stock is treated as a long-term capital loss, to the
  extent of the corresponding long-term capital gain dividend received.

     If a shareholder is subject to "backup withholding," PSI will be required
  to deduct and withhold from any dividends payable to the shareholder a tax of
  31%.  These rules may apply when a shareholder fails to supply a correct
  taxpayer identification number, or when the IRS notifies PSI that the
  shareholder is subject to the rules or has furnished an incorrect taxpayer
  identification number.

     PSI is required to demand annual written statements from the record holders
  of designated percentages of its capital stock disclosing the actual owners of
  the capital stock and to maintain permanent records showing the information it
  has received as to the actual ownership of such capital stock and a list of
  those persons failing or refusing to comply with such demand.

     In any year in which PSI does not qualify as a REIT, distributions by PSI
  to shareholders will be taxable in the same manner discussed above, except
  that no distributions can be designated as capital gain dividends,
  distributions

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  will be eligible for the corporate dividends received deduction, and
  shareholders will not receive any share of PSI's tax preference items.

     Tax Exempt Investors.  In general, a tax exempt entity that is a
  shareholder is not subject to tax on distributions from PSI or gain realized
  on the sale of capital stock, provided that the tax exempt entity has not
  financed the acquisition of its capital stock with "acquisition indebtedness"
  within the meaning of the Code.  Special rules apply to organizations exempt
  under Code Sections 501(c)(7), (c)(9), (c)(17) and (c)(20), and such
  prospective investors should consult their own tax advisors concerning the
  applicable "set aside" and reserve requirements.

     Foreign Investors.  The rules governing United States income, gift and
  estate taxation of foreign entities and individuals who are neither citizens
  nor residents of the United States are complex. They depend not only upon
  United States federal and state income, gift and estate tax principles, but
  also upon the treaties, if any, between the United States and the country of
  the nonresident investor. Therefore, any prospective foreign investor is urged
  to consult its own tax advisor with respect to both the United States and
  foreign tax consequences of owning stock of PSI. The following discussion sets
  forth several points that may be relevant to particular foreign investors. It
  assumes that any such investor holds the stock of PSI as an investment and not
  in connection with the conduct of a U.S. trade or business. Ordinary dividends
  generally will be subject to withholding at the source, at a 30% rate (which
  may be reduced under applicable treaties if the shareholder satisfies all
  pertinent requirements). Capital gain dividends may be subject to such
  withholding at a 35% rate if they relate to dispositions of U.S. real property
  interests (including the sale or disposition prior to maturity of loans where
  interest is based upon a "participation" in the income or appreciation from
  real property). Such dispositions would generally include the sale (but not
  the retirement) of profit-sharing loans relating to U.S. real property. In
  addition, such capital gain dividends (net of the amount of regular income
  tax) may be subject to a 30% branch tax in the hands of any foreign corporate
  recipients. Such tax may be reduced or eliminated in the case of a corporation
  that is a resident of a country with which the U.S. has a tax treaty, provided
  that a majority of such corporation's ultimate shareholders are residents of
  the country in question and that various filing requirements are satisfied.
  Investors may be able to obtain a partial refund of taxes withheld in respect
  of capital gain distributions by filing a nonresident U.S. tax return. Because
  only a minority of PSI Shareholders are expected to be foreign taxpayers, PSI
  should qualify as a "domestically-controlled REIT." Accordingly, a foreign
  taxpayer will not be subject to U.S. tax from gains recognized upon
  disposition of capital stock (unless the shareholder was present in the U.S.
  for more than 183 days in the year of sale and certain other requirements are
  met). Upon the death of a foreign individual shareholder, the investor's stock
  in PSI will be treated as part of the investor's U.S. estate for purposes of
  the U.S. estate tax, except as may be otherwise provided in an applicable
  estate tax treaty.

  State and Local Taxes

     The tax treatment of PSI, and PSP9 and PSBP Shareholders, in states having
  taxing jurisdiction over them may differ from the federal income tax
  treatment.  Accordingly, no discussion of state taxation of PSI, and PSP9
  Shareholders and PSBP Shareholders, is provided nor is any representation made
  as to the tax status of PSI in such states.  All investors should consult
  their own tax advisors as to the treatment of PSI under the respective state
  tax laws applicable to them.

                                 LEGAL OPINIONS

     David Goldberg, senior vice president and general counsel of PSI, will
  deliver an opinion to the effect that the shares of Common Stock of PSI to be
  issued in the Mergers will be validly issued, fully paid and nonassessable.
  Mr. Goldberg owns 67,229 shares of PSI Common Stock, 1,000 shares of PSI
  convertible preferred Stock and 500 shares of PSI Senior Preferred Stock and
  has options to acquire an additional 62,500 shares of PSI Common Stock.  Hogan
  & Hartson L.L.P., Washington, D.C., has rendered an opinion to the effect that
  the discussion under "Certain Federal Income Tax Matters" fairly summarizes
  the material federal income tax considerations to a PSP9 or PSBP Shareholder
  as a result of the PSP9 and PSBP Mergers, respectively, and the subsequent
  ownership of PSI Common Stock, as well as to the effect that the Merger will
  constitute a reorganization under Section 368(a) of the Code (based on certain
  factual assumptions and representations made by PSP9, PSBP, PSI and certain
  PSP9 and PSBP Shareholders).  Hogan & Hartson L.L.P. has performed certain
  legal services on behalf of PSI, including the representation of PSI in the
  PSMI Merger.

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   EXPERTS

     The consolidated financial statements of PSI for the year ended December
  31, 1994 incorporated by reference in this Prospectus have been audited by
  Ernst & Young LLP, independent auditors, as set forth in their report with
  respect thereto. The following financial statements incorporated by reference
  have also been audited by Ernst & Young LLP as set forth in their reports with
  respect thereto: (i) the financial statements of Public Storage Properties
  VII, Inc. which is included in the Registration Statement on Form S-4 (No. 
  33-58893) of PSI, (ii) the combined statements of assets, liabilities and
  deficit of the property management and advisory business of PSMI (and its
  predecessors) as of December 31, 1994 and 1993 and the related combined
  statements of operations and cash flows for each of the three years in the
  period ended December 31, 1994, and our report dated July 10, 1995 on the
  combined summaries of historical information relating to real estate interests
  to be acquired for each of the three years in the period ended December 31,
  1994 which are included in the Current Report on Form 8-K, as amended by a
  Form 8-K/A, each dated June 30, 1995, of PSI and (iii) the combined statements
  of assets, liabilities and equity of the property management and advisory
  businesses and real estate assets of PSMI (and its predecessors) as of
  December 31, 1994 and 1993 and the related combined statements of operations
  and cash flows for each of the three years in the period ended December 31,
  1994 which are included in the Current Report on Form 8-K dated November 16,
  1995, of PSI. Such financial statements are incorporated herein by reference
  in reliance upon such reports given upon the authority of such firm as experts
  in accounting and auditing.

     The financial statements of PSP9 and PSBP for the year ended December 31,
  1994 appearing herein and in the Annual Reports on Form 10-K of PSP9 and PSBP
  have been audited by Ernst & Young LLP, independent auditors, as set forth in
  their reports included herein.  Such financial statements are included herein
  in reliance upon such report given upon the authority of such firm as experts
  in accounting and auditing.

                              INDEPENDENT AUDITORS

     It is anticipated that representatives of Ernst & Young LLP, which has
  acted as the independent auditors of PSI, PSP9 and PSBP since their respective
  organization, will be in attendance at the special meetings of PSP9
  Shareholders and PSBP Shareholders with the opportunity to make a statement if
  they desire to do so and to respond to any appropriate inquiries of
  shareholders or their representatives.

                             SHAREHOLDER PROPOSALS

     Any proposal that a PSP9 or PSBP Shareholder wishes to submit for
  consideration for inclusion in the proxy statement for the 1996 annual
  meetings of shareholders must be received by the respective corporation no
  later than July 1, 1996.  Shareholder proposals should be addressed to:  600
  North Brand Boulevard, Suite 300, Glendale, California 91203-1241.

                                    GLOSSARY

     The following are definitions of certain terms used in this Joint Proxy
  Statement and Prospectus:

     "Mergers."  The mergers of PSP9 and PSBP with and into PSI.

     "PSBP."  PS Business Parks, Inc., a REIT organized as a California
  corporation.

     "PSBP Common Stock."  Shares of Common Stock Series A, par value $.01 per
  share, of PSBP.

     "PSBP Partnership."  PS Business Parks, Ltd., a California limited
  partnership, the predecessor to PSBP.

     "PSBP Shareholder."  A holder of shares of PSBP Common Stock.

     "PSCP."  Public Storage Commercial Properties Group, Inc., a California
  corporation.

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     "PSI."  Public Storage, Inc., a REIT organized as a California corporation
  (formerly Storage Equities, Inc.).

     "PSI Common Stock."  Shares of Common Stock, par value $.10 per share, of
  PSI.

     "PSI Shareholder."  A holder of shares of Common Stock of PSI.

     "PSMI."  Public Storage Management, Inc., a California corporation, which,
  together with its affiliates, was merged into Storage Equities, Inc. on
  November 16, 1995.

     "PSP9."  Public Storage Properties IX, Inc., a REIT organized as a
  California corporation.

     "PSP9 Common Stock."  Shares of Common Stock Series A, par value $.01 per
  share, of PSP9.

     "PSP9 Partnership."  Public Storage Properties IX, Ltd., a California
  limited partnership, the predecessor to PSP9.

     "PSP9 Shareholder."  A holder of shares of PSP9 Common Stock.

     "REIT."  A real estate investment trust.

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                                                                      Appendix A

                      AGREEMENT AND PLAN OF REORGANIZATION


     THIS AGREEMENT AND PLAN OF REORGANIZATION ("Agreement") is entered into as
of this 13th day of December, 1995, by and among PUBLIC STORAGE, INC., a
California corporation ("PSI"), PUBLIC STORAGE PROPERTIES IX, INC., a California
corporation ("PSP9") and PS BUSINESS PARKS, INC., a California corporation
("PSBP").

     A.  The parties intend that this Agreement shall constitute a Plan of
Reorganization for purposes of Section 368(a)(1)(A) of the Internal Revenue Code
of 1986, as amended.  The Plan of Reorganization provides for the mergers of
PSP9 and PSBP with and into PSI in accordance with the applicable provisions of
the General Corporation Law of California (the "GCLC") and the Agreements of
Merger substantially in the form attached hereto as Exhibit A ("Merger
Agreements").

     B.  The Boards of Directors of PSP9 and PSBP believe that it is in the best
interests of such corporations and their respective shareholders to enter into
and complete this Agreement and they have approved this Agreement and the
transactions contemplated hereby.

     NOW, THEREFORE, the parties agree as follows:

     1.  Adoption of Plan.  The parties hereby adopt the Plan of Reorganization
hereinafter set forth.

     2.  The Merger.

         2.1 Completion of the Merger.  At the Effective Time (as defined
below), PSP9 and PSBP will be merged with and into PSI (the "Mergers") in
accordance with the terms, conditions and provisions of this Agreement and the
Merger Agreements.  The Mergers shall become effective at the time at which the
Merger Agreements, together with the requisite Officers' Certificates of PSI,
PSP9 and PSBP are filed with the California Secretary of State in accordance
with the GCLC (the "Effective Time").  PSI, PSP9 and PSBP are sometimes
collectively referred to herein as the "Constituent Corporations" and PSI, as
the surviving corporation of the Mergers, is sometimes referred to herein as the
"Surviving Corporation."  Neither the merger of PSP9 with and into PSI, nor the
merger of PSBP with and into PSI is conditioned on the other.

         2.2 Effect of the Merger.  At the Effective Time:

             2.2.1     Constituent Corporations. The separate corporate
existence of PSP9 and PSBP shall cease and the Surviving Corporation shall
thereupon succeed, without other transfer, to all the rights and property of
PSP9 and PSBP and shall be subject to all the debts and liabilities of PSP9 and
PSBP in the same manner as if the Surviving Corporation had itself incurred
them; all rights of creditors and all liens upon the property of each of the
Constituent Corporations shall be preserved unimpaired, provided that such liens
upon property of PSP9 and PSBP shall be limited to the property affected thereby
immediately prior to the Effective Time; and any action or proceeding pending by
or against PSP9 and PSBP may be prosecuted to judgment, which shall bind the
Surviving Corporation, or the Surviving Corporation may be proceeded against or
substituted in its place.

             2.2.2     Articles and Bylaws. The Articles of Incorporation and
the Bylaws of PSI, as then amended, shall continue to be the Articles of
Incorporation and the Bylaws of the Surviving Corporation until changed as
provided by law and their respective provisions.

             2.2.3     Officers and Directors. The officers and directors of PSI
shall continue as officers and directors of the Surviving Corporation until
their successors are elected and qualified as provided by law and in accordance
with the Articles of Incorporation and Bylaws of the Surviving Corporation.

                                      A-1
<PAGE>
 
     2.3  Conversion of PSP9 and PSBP Shares.  The manner of converting the
outstanding shares of Common Stock Series A ($.01 par value) of PSP9 (the "PSP9
Shares") and of Common Stock Series A ($.01 par value) of PSBP (the "PSBP
Shares") into cash and/or shares of Common Stock ($.10 par value) of PSI (the
"PSI Shares") shall be as follows:

          2.3.1     Cash Election.  At the Effective Time, subject to Sections
2.6 and 6.8 hereof, each PSP9 Share and PSBP Share as to which a cash election
has been made in accordance with the provisions of Section 2.5 hereof and has
not been revoked, relinquished or lost pursuant to Section 2.5 hereof (the "Cash
Election Shares") shall be converted into and shall represent the right to
receive $18.64 and $19.59, respectively, in cash (the "Cash Election Price").
As soon as practicable after the Effective Time, the registered holders of Cash
Election Shares shall be paid the cash to which they are entitled hereunder in
respect of such Cash Election Shares.

          2.3.2     Share Exchange.  At the Effective Time, subject to Sections
2.4, 2.5, 2.7 and 6.8 hereof, each PSP9 Share and PSBP Share (other than Cash
Election Shares) shall be converted into that number of PSI Shares equal to,
rounded to the nearest thousandth, the quotient (the "Conversion Number")
derived by dividing $18.64 and $19.59, respectively, by the average of the per
share closing prices on the New York Stock Exchange, Inc. (the "NYSE") of PSI
Shares during the 20 consecutive trading days ending on the fifth trading day
prior to the meeting of shareholders of PSP9 and PSBP, respectively, provided
for in Section 6.2 hereof.  If, prior to the Effective Time, PSI should split or
combine the PSI Shares, or pay a stock dividend, the Conversion Number will be
appropriately adjusted to reflect such action.

     2.4  No Fractional Shares.  Notwithstanding any other term or provision
of this Agreement, no fractional PSI Shares and no certificates or script
therefor, or other evidence of ownership thereof, will be issued in the Mergers.
In lieu of any such fractional share interests, each holder of PSP9 Shares or
PSBP Shares who would otherwise be entitled to such fractional share will, upon
surrender of the certificate representing such PSP9 or PSBP Shares, receive a
whole PSI Share if such fractional share to which such holder would otherwise
have been entitled is .5 of an PSI Share or more, and such fractional share
shall be disregarded if it represents less than .5 of an PSI Share; provided,
however, that, such fractional share shall not be disregarded if such fractional
share to which such holder would otherwise have been entitled represents .5 of
1% or more of the total number of PSI Shares such holder is entitled to receive
in the Mergers.  In such event, such holder shall be paid an amount in cash
(without interest), rounded to the nearest $.01, determined by multiplying (i)
the per share closing price on the NYSE of the PSI Shares at the Effective Time
by (ii) the fractional interest.

     2.5 Procedure for Cash Election. At the time of the mailing of the Joint
Proxy Statement and Prospectus provided for in Section 6.5 hereof, PSI will send
to each holder of record of PSP9 Shares and PSBP Shares at the record date for
PSP9 and PSBP meetings of shareholders referred to in Section 6.2 hereof a cash
election form (the "Form of Election") providing such holder with the option to
elect to receive the Cash Election Price with respect to all or any portion of
such holder's PSP9 Shares or PSBP Shares. Any such election to receive the cash
payment contemplated by Section 2.3.1 hereof shall have been properly made only
if The First National Bank of Boston (the "Exchange Agent") shall have received
at its designated office, by 5:00 p.m., New York time, on the last business day
preceding the day of such meeting of shareholders, a Form of Election properly
completed and accompanied by certificates for the shares to which such Form of
Election relates (or an appropriate guarantee of delivery in a form and on terms
satisfactory to PSI), as set forth in such Form of Election. Any Form of
Election may be revoked by the person submitting the same to the Exchange Agent
only by written notice received by the Exchange Agent prior to 5:00 p.m., New
York time, on the last business day before the day of the meeting of
shareholders referred to in Section 6.2 hereof. In addition, all Forms of
Election shall automatically be revoked if the Exchange Agent is notified in
writing by the parties hereto that the Mergers have been abandoned. If a Form of
Election is revoked pursuant to this Section 2.5, the certificate or
certificates or any guarantee of delivery in respect of the PSP9 Shares or PSBP
Shares to which such Form of Election relates shall be promptly returned to the
person submitting the same to the Exchange Agent. The Exchange Agent may
determine whether or not elections to receive cash have been properly made or
revoked pursuant to this Section 2.5, and any such determination shall be
conclusive and binding. If the Exchange Agent determines that any election to
receive cash was not properly or timely made, the PSP9 Shares or PSBP Shares
covered thereby shall not be treated as Cash Election Shares, and shall be
converted in the Mergers as

                                      A-2
<PAGE>
 
provided in Section 2.3.2 hereof.  The Exchange Agent may, with the agreement of
PSI, PSP9 and PSBP, establish such procedures, not inconsistent with this
Section 2.5, as may be necessary or desirable to implement this Section 2.5.

     2.6  Procedure for Proration.

          2.6.1     No Proration of PSP9 Shares.  If the aggregate number of
Cash Election Shares and Dissenting Shares (as defined below) of PSP9 is 20% or
less than the number of PSP9 Shares outstanding as of the record date for the
meeting of shareholders of PSP9 referred to in Section 6.2, then each Cash
Election Share of PSP9 shall be converted in the Mergers into the right to
receive the Cash Election Price for PSP9 Shares.

          2.6.2     No Proration of PSBP Shares.  If the aggregate number of
Cash Election Shares and Dissenting Shares (as defined below) of PSBP is 20% or
less than the number of PSBP Shares outstanding as of the record date for the
meeting of shareholders of PSBP referred to in Section 6.2, then each Cash
Election Share of PSBP shall be converted in the Mergers into the right to
receive the Cash Election Price for PSBP Shares.

          2.6.3     Proration of PSP9 Shares.  If the aggregate number of Cash
Election Shares and Dissenting Shares of PSP9 exceeds 20%, then each Cash
Election Share of PSP9 shall be converted in the Mergers into the right to
receive cash or into PSI Shares as follows:  the number of Cash Election Shares
of PSP9 owned by a holder of PSP9 Shares that shall be converted into the right
to receive the Cash Election Price for PSP9 Shares shall equal the number
obtained by multiplying (i) (A) 20% of outstanding PSP9 Shares less (B) the
number of Dissenting Shares (as hereinafter defined) of PSP9, if any, by (ii) a
fraction of which the numerator shall be the number of Cash Election Shares
owned by such holder and the denominator shall be the aggregate number of Cash
Election Shares of PSP9.  The balance of such Cash Election Shares shall be
converted into PSI Shares in accordance with the provisions of Section 2.3.2
hereof.  Notwithstanding the foregoing, PSI, in its sole discretion, may allow
Cash Election Shares of PSP9 to receive the Cash Election Price for PSP9 Shares
even if the aggregate number of Cash Election Shares and Dissenting Shares of
PSP9 exceeds 20% (but not 50%) of the number of PSP9 Shares outstanding as of
the record date for the meeting of shareholders of PSP9 referred to in Section
6.2.

          2.6.4     Proration of PSBP Shares.  If the aggregate number of Cash
Election Shares and Dissenting Shares of PSBP exceeds 20%, then each Cash
Election Share of PSBP shall be converted in the Mergers into the right to
receive cash or into PSI Shares as follows:  the number of Cash Election Shares
of PSBP owned by a holder of PSBP Shares that shall be converted into the right
to receive the Cash Election Price for PSBP Shares shall equal the number
obtained by multiplying (i) (A) 20% of outstanding PSBP Shares less (B) the
number of Dissenting Shares (as hereinafter defined) of PSBP, if any, by (ii) a
fraction of which the numerator shall be the number of Cash Election Shares
owned by such holder and the denominator shall be the aggregate number of Cash
Election Shares of PSBP.  The balance of such Cash Election Shares shall be
converted into PSI Shares in accordance with the provisions of Section 2.3.2
hereof.  Notwithstanding the foregoing, PSI, in its sole discretion, may allow
Cash Election Shares of PSBP to receive the Cash Election Price for PSBP Shares
even if the aggregate number of Cash Election Shares and Dissenting Shares of
PSBP exceeds 20% (but not 50%) of the number of PSBP Shares outstanding as of
the record date for the meeting of shareholders of PSBP referred to in Section
6.2.

     2.7  Dissenting Shares.  PSP9 Shares and PSBP Shares held by a holder
who has demanded and perfected his right to an appraisal of such shares in
accordance with Section 1300 et seq. of the GCLC and who has not effectively
withdrawn or lost his right to appraisal ("Dissenting Shares") shall not be
converted into or represent the right to receive cash and/or PSI Shares, but the
holder thereof shall be entitled only to such rights as are granted by Section
1300 et seq. of the GCLC.  Each holder of Dissenting Shares who becomes entitled
to payment for PSP9 Shares or PSBP Shares pursuant to these provisions of the
GCLC shall receive payment therefor from the Surviving Corporation in accordance
therewith.  If any holder of PSP9 Shares or PSBP Shares who demands appraisal in
accordance with Section 1300 et seq. of the GCLC shall effectively withdraw with
the consent of the Surviving Corporation or lose (through failure to perfect or
otherwise) his right to appraisal with respect to PSP9 Shares or PSBP Shares,
such PSP9 Shares or PSBP Shares shall automatically be converted into the right
to receive PSI Shares pursuant to Section 2.3.2 hereof.

                                      A-3
<PAGE>
 
         2.8   PSI Shares Unaffected.  The Mergers shall effect no change in any
of the outstanding PSI Shares and no outstanding PSI Shares shall be converted
or exchanged as a result of the Mergers, and no cash shall be exchangeable, and
no securities shall be issuable, with respect thereto.

         2.9   Cancellation of Shares Held or Owned by Parties. At the Effective
Time, any PSP9 Shares and PSBP Shares owned by PSI shall be cancelled and
retired and no shares shall be issuable, and no cash shall be exchangeable, with
respect thereto.

         2.10  Exchange of Certificates.  After the Effective Time, each holder
of a certificate theretofore evidencing outstanding PSP9 Shares and PSBP Shares
which were converted into PSI Shares pursuant hereto, upon surrender of such
certificate to the Exchange Agent or such other agent or agents as shall be
appointed by the Surviving Corporation, shall be entitled to receive a
certificate representing the number of whole PSI Shares into which the PSP9
Shares and PSBP Shares theretofore represented by the certificate so surrendered
shall have been converted as provided in Section 2.3.2 hereof and cash payment
in lieu of fractional share interests, if any, as provided in Section 2.4
hereof.  As soon as practicable after the Effective Time, the Exchange Agent
will send a notice and a transmittal form to each holder of PSP9 Shares and PSBP
Shares of record at the Effective Time whose stock shall have been converted
into PSI Shares, advising such holder of the effectiveness of the Mergers and
the procedure for surrendering to the Exchange Agent certificates evidencing
PSP9 Shares and PSBP Shares in exchange for certificates evidencing PSI Shares.

         2.11  Status Until Surrendered.  Until surrendered as provided in
Section 2.10 hereof, each outstanding certificate which, prior to the Effective
Time, represented PSP9 Shares or PSBP Shares (other than Cash Election Shares
and Dissenting Shares, if any) will be deemed for all corporate purposes to
evidence ownership of the number of whole PSI Shares into which the PSP9 Shares
or PSBP Shares evidenced thereby were converted.  However, until such
outstanding certificates formerly evidencing PSP9 Shares or PSBP Shares are so
surrendered, no dividend payable to holders of record of PSI Shares shall be
paid to the holders of such outstanding certificates in respect of PSP9 Shares
or PSBP Shares, but upon surrender of such certificates by such holders there
shall be paid to such holders the amount of any dividends (without interest)
theretofore paid with respect to such whole PSI Shares as of any record date on
or subsequent to the Effective Time and the amount of any cash (without
interest) payable to such holder in lieu of fractional share interests pursuant
to Section 2.4 hereof.

         2.12  Transfer of Shares.  After the Effective Time, there shall be no
further registration of transfers of PSP9 Shares and PSBP Shares on the records
of PSP9 and PSBP, respectively, and, if certificates formerly evidencing such
shares are presented to the Surviving Corporation, they shall be cancelled and
exchanged for certificates evidencing PSI Shares and cash in lieu of fractional
share interests as herein provided.

     3.  Closing.

         3.1   Time and Place of Closing.  If this Agreement is approved by the
shareholders of either PSP9 or PSBP or both, a meeting (the "Closing") shall
take place as promptly as practicable thereafter at which the applicable parties
will exchange certificates and other documents as required by this Agreement.
Such Closing shall take place at such time and place as PSI may designate.  The
date of the Closing shall be referred to as the "Closing Date."

         3.2   Execution and Filing of Merger Agreement. At or before the
Closing and after shareholder approval of either PSP9 or PSBP or both, the
applicable parties shall execute and deliver the Merger Agreements, together
with the requisite Officers' Certificates, for filing with the California
Secretary of State. The Merger Agreements, together with the requisite Officers'
Certificates, shall be duly filed with the California Secretary of State in
accordance with the GCLC as soon as practicable following the Closing.

     4.  Representations, Warranties and Agreements of PSP9 and PSBP.

         4.1   Representations, Warranties and Agreements of PSP9.  PSP9
represents, warrants and agrees with PSI that:

                                      A-4
<PAGE>
 
          4.1.1   Authorization.  Subject to approval of this Agreement by the
shareholders of PSP9, (i) the execution, delivery and performance of this
Agreement by PSP9 has been duly authorized and approved by all necessary
corporate action of PSP9, and (ii) PSP9 has necessary corporate power and
authority to enter into this Agreement, to perform its obligations hereunder and
to complete the transactions contemplated hereby.

          4.1.2   Organization and Related Matters.  PSP9 is a corporation
duly organized, existing and in good standing under the laws of the State of
California with all requisite corporate power and authority to own, lease and
operate its properties and to carry on its business as and where now owned,
leased, operated or carried on, as the case may be; and is duly qualified to do
business as a foreign corporation and is in good standing in each jurisdiction
in which the property owned, leased or operated by it or the nature of the
business carried on by it requires such qualification and where the failure to
so qualify would have a material adverse effect on the business, properties,
results of operations or financial condition of PSP9.  PSP9 has no direct or
indirect equitable or beneficial interest in any other corporation other than
PSCC, Inc.

          4.1.3   Capital Stock.  The authorized capital stock of PSP9
consists solely of (i) 2,896,094 shares of Common Stock Series A ($.01 par
value), 2,447,506 of which were issued and outstanding as of November 30, 1995.
All of the issued and outstanding shares of Common Stock Series A of PSP9 have
been duly and validly authorized and issued, and are fully paid and
nonassessable.  There are no options or agreements to which PSP9 is a party or
by which it is bound calling for or requiring the issuance of any of PSP9's
capital stock.  PSP9's Common Stock Series B and C have been fully converted and
are no longer authorized or outstanding.

          4.1.4   Consents and Approvals; No Violation.  Assuming approval of
the Mergers and of this Agreement by the shareholders of PSP9, neither the
execution and delivery of this Agreement nor the consummation by PSP9 of the
transactions contemplated hereby will: (i) conflict with or result in any breach
of any provision of its Articles of Incorporation or Bylaws; (ii) require any
consent, waiver, approval, authorization or permit of, or filing with or
notification to, any governmental or regulatory authority, except (A) in
connection with the applicable requirements, if any, of the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act"), (B) pursuant to
the applicable requirements of the federal securities laws and the rules and
regulations promulgated thereunder, (C) the filing of the Merger Agreement(s)
and Officers' Certificates pursuant to the GCLC and appropriate documents with
the relevant authorities of other states in which PSP9 is authorized to do
business, (D) in connection with any state or local tax which is attributable to
the beneficial ownership of PSP9's real property, (E) as may be required by any
applicable state securities or takeover laws, or (F) where the failure to obtain
such consent, approval, authorization or permit, or to make such filing or
notification, would not in the aggregate have a material adverse effect on PSP9
or adversely affect the ability of PSP9 to consummate the transactions
contemplated hereby; (iii) result in a violation or breach of, or constitute a
default (or give rise to any right of termination, cancellation or acceleration)
under any of the terms, conditions or provisions of any note, license, mortgage,
agreement or other instrument or obligation to which PSP9 is a party or any of
its properties or assets may be bound, except for such violations, breaches and
defaults which, in the aggregate, would not have a material adverse effect on
PSP9 or adversely affect the ability of PSP9 to consummate the transactions
contemplated hereby; or (iv) assuming the consents, approvals, authorizations or
permits and filings or notifications referred to in this Section 4.1.4 are duly
and timely obtained or made, violate any order, writ, injunction, decree,
statute, rule or regulation applicable to PSP9 or its properties or assets,
except for violations which would not in the aggregate have a material adverse
effect on PSP9 or adversely affect the ability of PSP9 to consummate the
transactions contemplated hereby.

          4.1.5   Litigation.  There is no litigation, proceeding or
governmental investigation which, individually or in the aggregate, is or may be
material and adverse, pending or, to the knowledge of PSP9, threatened against
PSP9 or involving any of its properties or assets.

          4.1.6   SEC Reports.  Since January 1, 1993, PSP9 has filed all
forms, reports and documents with the Securities and Exchange Commission ("SEC")
required to be filed by it pursuant to the federal securities laws and the rules
and regulations promulgated by the SEC thereunder, all of which complied in all
material respects with all applicable requirements of the federal securities
laws and such rules and regulations (collectively, the "PSP9 SEC Reports").
None of the PSP9 SEC Reports, including without limitation any financial
statements or schedules included therein, at the time filed contained any untrue
statement of a material fact or omitted to state a

                                      A-5
<PAGE>
 
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.

          4.1.7    Financial Statements. The financial statements included in
the PSP9 SEC Reports complied as to form in all material respects with
applicable accounting requirements and the published rules and regulations of
the SEC with respect thereto, have been prepared in accordance with generally
accepted accounting principles applied on a basis consistent with prior periods
(except as otherwise noted therein), and present fairly the financial position
of PSP9 as of their respective dates, and the results of operations of PSP9 for
the periods presented therein (subject, in the case of the unaudited interim
financial statements, to normal year-end adjustments).

          4.1.8    Absence of Certain Changes or Events. Since January 1, 1995,
the business of PSP9 has been carried on only in the ordinary and usual course
and there has not been any material adverse change in its business, results of
operations or financial condition, or any damage or destruction in the nature of
a casualty loss, whether covered by insurance or not, that would materially and
adversely affect its properties, business or results of operations.

          4.1.9    S-4 Registration Statement and Joint Proxy Statement and
Prospectus. None of the information supplied or to be supplied by PSP9 for
inclusion or incorporation by reference in the S-4 Registration Statement or the
Joint Proxy Statement and Prospectus (as such terms are defined in Section 6.5
hereof) will (i) in the case of the S-4 Registration Statement, at the time it
becomes effective and at the Effective Time, 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 not misleading, or (ii) in
the case of the Joint Proxy Statement and Prospectus, at the time of the mailing
of the Joint Proxy Statement and Prospectus and at the time of the meetings of
the shareholders of PSP9 and PSBP, 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.

          4.1.10   Insurance. All material insurance of PSP9 is currently in
full force and effect and PSP9 has reported all claims and occurrences to the
extent required by such insurance.

          4.1.11   Disclosure. The representations and warranties by PSP9 in
this Agreement and any certificate or document delivered by it pursuant hereto
do not and will not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements contained herein or
therein not misleading.

     4.2  Representations, Warranties and Agreements of PSBP. PSBP represents,
warrants and agrees with PSI that:

          4.2.1    Authorization. Subject to approval of this Agreement by the
shareholders of PSBP, (i) the execution, delivery and performance of this
Agreement by PSBP has been duly authorized and approved by all necessary
corporate action of PSBP, and (ii) PSBP has necessary corporate power and
authority to enter into this Agreement, to perform its obligations hereunder and
to complete the transactions contemplated hereby.

          4.2.2    Organization and Related Matters. PSBP is a corporation duly
organized, existing and in good standing under the laws of the State of
California with all requisite corporate power and authority to own, lease and
operate its properties and to carry on its business as and where now owned,
leased, operated or carried on, as the case may be; and is duly qualified to do
business as a foreign corporation and is in good standing in each jurisdiction
in which the property owned, leased or operated by it or the nature of the
business carried on by it requires such qualification and where the failure to
so qualify would have a material adverse effect on the business, properties,
results of operations or financial condition of PSBP. PSBP has no direct or
indirect equitable or beneficial interest in any other corporation other than
PSCC, Inc.

          4.2.3    Capital Stock. The authorized capital stock of PSBP consists
solely of (i) 656,034 shares of Common Stock Series A ($.01 par value), 534,159
of which were issued and outstanding as of November 30, 1995. All of the issued
and outstanding shares of Common Stock Series A of PSBP have been duly and
validly

                                      A-6
<PAGE>
 
authorized and issued, and are fully paid and nonassessable. There are no
options or agreements to which PSBP is a party or by which it is bound calling
for or requiring the issuance of any of PSBP's capital stock. PSBP's Common
Stock Series B and C have been fully converted and are no longer authorized or
outstanding.

          4.2.4    Consents and Approvals; No Violation. Assuming approval of
the Mergers and of this Agreement by the shareholders of PSBP, neither the
execution and delivery of this Agreement nor the consummation by PSBP of the
transactions contemplated hereby will: (i) conflict with or result in any breach
of any provision of its Articles of Incorporation or Bylaws; (ii) require any
consent, waiver, approval, authorization or permit of, or filing with or
notification to, any governmental or regulatory authority, except (A) in
connection with the applicable requirements, if any, of the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act"), (B) pursuant to
the applicable requirements of the federal securities laws and the rules and
regulations promulgated thereunder, (C) the filing of the Merger Agreement(s)
and Officers' Certificates pursuant to the GCLC and appropriate documents with
the relevant authorities of other states in which PSBP is authorized to do
business, (D) in connection with any state or local tax which is attributable to
the beneficial ownership of PSBP's real property, (E) as may be required by any
applicable state securities or takeover laws, or (F) where the failure to obtain
such consent, approval, authorization or permit, or to make such filing or
notification, would not in the aggregate have a material adverse effect on PSBP
or adversely affect the ability of PSBP to consummate the transactions
contemplated hereby; (iii) result in a violation or breach of, or constitute a
default (or give rise to any right of termination, cancellation or acceleration)
under any of the terms, conditions or provisions of any note, license, mortgage,
agreement or other instrument or obligation to which PSBP is a party or any of
its properties or assets may be bound, except for such violations, breaches and
defaults which, in the aggregate, would not have a material adverse effect on
PSBP or adversely affect the ability of PSBP to consummate the transactions
contemplated hereby; or (iv) assuming the consents, approvals, authorizations or
permits and filings or notifications referred to in this Section 4.2.4 are duly
and timely obtained or made, violate any order, writ, injunction, decree,
statute, rule or regulation applicable to PSBP or its properties or assets,
except for violations which would not in the aggregate have a material adverse
effect on PSBP or adversely affect the ability of PSBP to consummate the
transactions contemplated hereby.

          4.2.5    Litigation. There is no litigation, proceeding or
governmental investigation which, individually or in the aggregate, is or may be
material and adverse, pending or, to the knowledge of PSBP, threatened against
PSBP or involving any of its properties or assets.

          4.2.6    SEC Reports. Since January 1, 1993, PSBP has filed all forms,
reports and documents with the SEC required to be filed by it pursuant to the
federal securities laws and the rules and regulations promulgated by the SEC
thereunder, all of which complied in all material respects with all applicable
requirements of the federal securities laws and such rules and regulations
(collectively, the "PSBP SEC Reports"). None of the PSBP SEC Reports, including
without limitation any financial statements or schedules included therein, at
the time filed contained any untrue statement of a material fact or omitted to
state a material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they were
made, not misleading.

          4.2.7    Financial Statements. The financial statements included in
the PSBP SEC Reports complied as to form in all material respects with
applicable accounting requirements and the published rules and regulations of
the SEC with respect thereto, have been prepared in accordance with generally
accepted accounting principles applied on a basis consistent with prior periods
(except as otherwise noted therein), and present fairly the financial position
of PSBP as of their respective dates, and the results of operations of PSBP for
the periods presented therein (subject, in the case of the unaudited interim
financial statements, to normal year-end adjustments).

          4.2.8    Absence of Certain Changes or Events. Since January 1, 1995,
the business of PSBP has been carried on only in the ordinary and usual course
and there has not been any material adverse change in its business, results of
operations or financial condition, or any damage or destruction in the nature of
a casualty loss, whether covered by insurance or not, that would materially and
adversely affect its properties, business or results of operations.

                                      A-7
<PAGE>
 
              4.2.9    S-4 Registration Statement and Joint Proxy Statement and
Prospectus. None of the information supplied or to be supplied by PSBP for
inclusion or incorporation by reference in the S-4 Registration Statement or the
Joint Proxy Statement and Prospectus (as such terms are defined in Section 6.5
hereof) will (i) in the case of the S-4 Registration Statement, at the time it
becomes effective and at the Effective Time, 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 not misleading, or (ii) in
the case of the Joint Proxy Statement and Prospectus, at the time of the mailing
of the Joint Proxy Statement and Prospectus and at the time of the meetings of
the shareholders of PSP9 and PSBP, 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.

              4.2.10   Insurance. All material insurance of PSBP is currently in
full force and effect and PSBP has reported all claims and occurrences to the
extent required by such insurance.

              4.2.11   Disclosure. The representations and warranties by PSBP in
this Agreement and any certificate or document delivered by it pursuant hereto
do not and will not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements contained herein or
therein not misleading.

     5.  Representations, Warranties and Agreements of PSI.  PSI hereby
represents, warrants and agrees with PSP9 and PSBP that:

         5.1  Authorization. Upon approval of this Agreement by the Board of
Directors of PSI, (i) the execution, delivery and performance of this Agreement
by PSI will have been duly authorized and approved by all necessary corporate
action of PSI, and (ii) PSI has all necessary corporate power and authority to
enter into this Agreement, to perform its obligations hereunder and to complete
the transactions contemplated hereby.

         5.2  Organization and Related Matters. PSI is a corporation duly
organized, existing and in good standing under the laws of the State of
California, with all requisite corporate power and authority to own, lease and
operate its properties and to carry on its business as and where now owned,
leased, operated or carried on, as the case may be; and is duly qualified to do
business as a foreign corporation and is in good standing in each jurisdiction
in which the property owned, leased or operated by it or the nature of the
business carried on by it requires such qualification and where the failure to
so qualify would have a material adverse effect on the business, properties,
results of operations or financial condition of PSI. PSI has no direct or
indirect equitable or beneficial interest in any other corporation, other than
Public Storage Commercial Properties Group, Inc., PS Orangeco, Inc., PSCC, Inc.
and a number of "qualified REIT subsidiaries."

         5.3  Capital Stock. The authorized capital stock of PSI consists solely
of (i) 200,000,000 shares of Common Stock ($.10 par value), approximately
65,700,000 of which were issued and outstanding as of November 30, 1995, (ii)
7,000,000 shares of Class B Common Stock ($.10 par value), none of which were
issued and outstanding as of November 30, 1995 and (iii) 50,000,000 shares of
Preferred Stock ($.10 par value), 13,437,200 of which were issued and
outstanding as of November 30, 1995. All of the issued and outstanding shares of
Common Stock and Preferred Stock of PSI have been duly and validly authorized
and issued, and are fully paid and nonassessable. Other than shares subject to
stock options, shares issuable upon the conversion of convertible preferred
stock, shares of Common Stock and Class B Common Stock issuable in connection
with the November 16, 1995 merger of Public Storage Management, Inc. into PSI
and as provided in this Agreement, there are no options or agreements to which
PSI is a party or by which it is bound calling for or requiring the issuance of
any of PSI's capital stock. Upon the approval of the Mergers and this Agreement
by the Board of Directors of PSI, the issuance of the PSI Shares in the Mergers
will have been duly and validly authorized and, when issued and delivered as
provided in this Agreement, the PSI Shares will have been duly and validly
issued, fully paid and nonassessable; and the shareholders of PSI have no
preemptive rights with respect to any shares of capital stock of PSI.

         5.4  Consents and Approvals; No Violation. Upon the approval of the
Mergers and this Agreement by the Board of Directors of PSI, neither the
execution and delivery of this Agreement nor the consummation by PSI of the
transactions contemplated hereby will: (i) conflict with or result in any breach
of any provision of its Articles

                                      A-8
<PAGE>
 
of Incorporation or Bylaws; (ii) require any consent, waiver, approval,
authorization or permit of, or filing with or notification to, any governmental
or regulatory authority, except (A) in connection with the applicable
requirements, if any, of the HSR Act, (B) pursuant to the applicable
requirements of the federal securities laws and the rules and regulations
promulgated thereunder, (C) the filing of the Merger Agreements and Officers'
Certificates pursuant to the GCLC and appropriate documents with the relevant
authorities of other states in which PSI is authorized to do business, (D) in
connection with any state or local tax which is attributable to the beneficial
ownership of PSP9's and PSBP's real property, (E) as may be required by any
applicable state securities or takeover laws, or (F) where the failure to obtain
such consent, approval, authorization or permit, or to make such filing or
notification, would not in the aggregate have a material adverse effect on PSI
or adversely affect the ability of PSI to consummate the transactions
contemplated hereby; (iii) result in a violation or breach of, or constitute a
default (or give rise to any right of termination, cancellation or acceleration)
under any of the terms, conditions or provisions of any note, license, mortgage,
agreement or other instrument or obligation to which PSI is a party or any of
its properties or assets may be bound, except for such violations, breaches and
defaults which, in the aggregate, would not have a material adverse effect on
PSI or adversely affect the ability of PSI to consummate the transactions
contemplated hereby; or (iv) assuming the consents, approvals, authorizations or
permits and filings or notifications referred to in this Section 5.4 are duly
and timely obtained or made, violate any order, writ, injunction, decree,
statute, rule or regulation applicable to PSI or its properties or assets,
except for violations which would not in the aggregate have a material adverse
effect on PSI or adversely affect the ability of PSI to consummate the
transactions contemplated hereby.

         5.5  Litigation. There is no litigation, proceeding or governmental
investigation which, individually or in the aggregate, is or may be material and
adverse, pending or, to the knowledge of PSI, threatened against PSI or
involving any of its properties or assets.

         5.6  SEC Reports. Since January 1, 1993, PSI has filed all forms,
reports and documents with the SEC required to be filed by it pursuant to the
federal securities laws and the rules and regulations promulgated by the SEC
thereunder, all of which complied in all material respects with all applicable
requirements of the federal securities laws and such rules and regulations
(collectively, the "PSI SEC Reports"). None of the PSI SEC Reports, including
without limitation any financial statements or schedules included therein, at
the time filed contained any untrue statement of a material fact or omitted to
state a material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they were
made, not misleading.

         5.7  Financial Statements. The financial statements included in PSI's
SEC Reports complied as to form in all material respects with applicable
accounting requirements and the published rules and regulations of the SEC with
respect thereto, have been prepared in accordance with generally accepted
accounting principles applied on a basis consistent with prior periods (except
as otherwise noted therein), and present fairly the financial position of PSI as
of their respective dates, and the results of operations of PSI for the periods
presented therein (subject, in the case of the unaudited interim financial
statements, to normal year-end adjustments).

         5.8  Absence of Certain Changes or Events. Since January 1, 1995, the
business of PSI has been carried on only in the ordinary and usual course and
there has not been any material adverse change in its business, results of
operations or financial condition, or any damage or destruction in the nature of
a casualty loss, whether covered by insurance or not, that would materially and
adversely affect its properties, business or results of operations.

         5.9  S-4 Registration Statement and Joint Proxy Statement and
Prospectus. None of the information supplied or to be supplied by PSI for
inclusion or incorporation by reference in the S-4 Registration Statement or the
Joint Proxy Statement and Prospectus (as those terms are defined in Section 6.5
hereof) will (i) in the case of the S-4 Registration Statement, at the time it
becomes effective and at the Effective Time, 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 not misleading, or (ii) in
the case of the Joint Proxy Statement and Prospectus, at the time of the mailing
of the Joint Proxy Statement and Prospectus and at the time of the meetings of
the shareholders of PSP9 and PSBP, 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.

                                      A-9
<PAGE>
 
         5.10  Insurance.  All material insurance of PSI is currently in full
force and effect and PSI has reported all claims and occurrences to the extent
required by such insurance.

         5.11  Disclosure.  The representations and warranties by PSI in this
Agreement and any certificate or document delivered by it pursuant hereto do not
and will not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements contained herein or therein not
misleading.

     6.  Covenants and Agreements.

         6.1   Ordinary Course. Except as contemplated by this Agreement, during
the period from the date of this Agreement to the Effective Time, each of PSI,
PSP9 and PSBP will carry on its business in the ordinary course in substantially
the same manner as heretofore conducted and use all reasonable efforts to: (a)
preserve intact its present business, organization and goodwill, (b) maintain
all permits, licenses and authorizations required by applicable laws, and (c)
keep available the services of its present employees and preserve its
relationships with customers, suppliers, lenders, lessors, governmental entities
and others having business or regulatory dealings with it. Neither PSP9 nor PSBP
will issue any capital stock or debt securities convertible into capital stock.
PSI, PSP9 and PSBP will promptly notify the others of any event or occurrence
not in the ordinary and usual course of business or which may have a material
adverse effect on the properties or financial condition of such party.

         6.2   Meetings of Shareholders. Each of PSP9 and PSBP will take all
action necessary in accordance with applicable law to convene a meeting of its
shareholders as promptly as practicable to consider and vote upon approval of
this Agreement, it being understood that the principal terms of the Agreement
must be approved by (i) in the case of PSP9, the affirmative vote of (A) a
majority of the outstanding PSP9 Shares entitled to vote at the PSP9
shareholders meeting and (B) a majority of the PSP9 Shares voting at the meeting
of PSP9 shareholders not held by PSI and its affiliates, and (ii) in the case of
PSBP, the affirmative vote of (A) a majority of the outstanding PSBP Shares
entitled to vote at the PSBP shareholders meeting and (B) a majority of the PSBP
Shares voting at the meeting of PSBP shareholders not held by PSI and its
affiliates.

         6.3   Tax Reporting. Each of PSI, PSP9 and PSBP agrees to report the
Mergers for federal and state income tax purposes, as a reorganization of the
type described in Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as
amended.

         6.4   Acquisition Proposals. Neither PSP9 nor PSBP will initiate,
solicit or encourage, directly or indirectly, any inquiries or the making of any
proposal with respect to a merger, consolidation, share exchange or similar
transaction involving PSP9 or PSBP, or any purchase of all or any significant
portion of either of their assets, or any equity interest in either of them,
other than the transactions contemplated hereby (an "Acquisition Proposal"), or
engage in any negotiations concerning, or provide any confidential information
or data to, or have any discussions with, any person relating to an Acquisition
Proposal; provided, however, that the Board of Directors on behalf of either
PSP9 or PSBP may furnish or cause to be furnished information and may
participate in such discussions and negotiations through its representatives
with persons who have sought the same if the failure to provide such information
or participate in such negotiations and discussions might cause the members of
the Board of Directors of either PSP9 or PSBP to breach their fiduciary duty to
the shareholders of the respective corporation under applicable law as advised
by counsel. PSP9 and PSBP will notify PSI immediately if any such inquiries or
proposals are received by, any such information is requested from, or any such
negotiations or discussions are sought to be initiated or continued with either
PSP9 or PSBP, and will keep PSI informed of the status and terms of any such
proposals and any such negotiations or discussions.

         6.5   Registration and Proxy Statements. PSP9 and PSBP will promptly
prepare and file with the SEC a joint preliminary proxy statement in connection
with the vote of shareholders of PSP9 and PSBP with respect to the Mergers. PSI
will, as promptly as practicable, prepare and file with the SEC a registration
statement on Form S-4 (the "S-4 Registration Statement"), containing a joint
proxy statement/prospectus, in connection with the registration under the
Securities Act of 1933, as amended (the "Securities Act") of the PSI Shares to
be issued to holders of PSP9 Shares and PSBP Shares in the Mergers (such joint
proxy statement/prospectus, together with any amendments thereof or supplements
thereto, in each case in the form or forms to be mailed to the shareholders of
PSP9 and PSBP, being

                                      A-10
<PAGE>
 
herein called the "Joint Proxy Statement and Prospectus"). PSI, PSP9 and PSBP
will each use its best efforts to have or cause the S-4 Registration Statement
to be declared effective as promptly as practicable, and also will take any
other action required to be taken under federal or state securities laws, and
PSP9 and PSBP will each use its best efforts to cause the Joint Proxy Statement
and Prospectus to be mailed to its respective shareholders at the earliest
practicable date. PSP9 and PSBP agree that if at any time prior to the Effective
Time any event with respect to PSP9 and PSBP, respectively, should occur which
is required to be described in an amendment of, or a supplement to, the Joint
Proxy Statement and Prospectus or the S-4 Registration Statement, such event
shall be so described, and such amendment or supplement shall be promptly filed
with the SEC and, as required by law, disseminated to the shareholders of PSP9
and PSBP and (ii) the Joint Proxy Statement and Prospectus will (with respect to
PSP9 and PSBP) comply as to form in all material respects with the requirements
of the federal securities laws. PSI agrees that (i) if at any time prior to the
Effective Time any event with respect to PSI should occur which is required to
be described in an amendment of, or a supplement to, the Joint Proxy Statement
and Prospectus or the S-4 Registration Statement, such event shall be so
described, and such amendment or supplement shall be promptly filed with the SEC
and, as required by law, disseminated to the shareholders of PSP9 and PSBP and
(ii) the Joint Proxy Statement and Prospectus will (with respect to PSI) comply
as to form in all material respects with the requirements of the federal
securities laws.

         6.6   Best Efforts. Each of PSI, PSP9 and PSBP shall: (i) promptly make
its respective filings and thereafter make any other required submissions under
all applicable laws with respect to the Mergers and the other transactions
contemplated hereby; and (ii) use its best efforts to promptly take, or cause to
be taken, all other actions and do, or cause to be done, all other things
necessary, proper or appropriate to consummate and make effective the
transactions contemplated by this Agreement as soon as practicable.

         6.7   Registration and Listing of PSI Shares. PSI will use its best
efforts to register the PSI Shares under the applicable provisions of the
Securities Act and to cause the PSI Shares to be listed for trading on the NYSE
upon official notice of issuance.

         6.8   Distributions.

               6.8.1   PSP9 Distributions. PSP9 will not, at any time prior to
the Effective Time, declare or pay any cash distribution on its capital stock or
make any other distribution of assets to its shareholders, except (i) regular
quarterly dividends on its Common Stock at a quarterly rate not in excess of
$.___ per share, (ii) pre-Mergers cash distributions to shareholders of record
immediately prior to the Effective Time in an aggregate amount equal to the
amount by which the estimated Net Asset Value of PSP9 (as defined below) as of
the Effective Time exceeds the estimated Net Asset Value of PSP9 as of March 31,
1996 and (iii) additional pre-Mergers cash distributions required to satisfy
PSP9's REIT distribution requirements (the number of PSI Shares issued in the
Mergers and the amount receivable upon Cash Elections would be reduced on a pro
rata basis in an aggregate amount equal to such additional distributions). For
this purpose, the Net Asset Value of PSP9 is the sum of (a) the fair market
value of PSP9's real estate assets as determined by appraisal by Charles R.
Wilson & Associates, Inc. as of October 31, 1995, and (b) the book value of
PSP9's non-real estate assets as of the date of determination, and less (c)
PSP9's liabilities as of the date of determination. The determination of book
value and liabilities shall be from PSP9's financial statements prepared in
accordance with generally accepted accounting principles on a basis consistent
with prior periods.

               6.8.2   PSBP Distributions. PSBP will not, at any time prior to
the Effective Time, declare or pay any cash distribution on its capital stock or
make any other distribution of assets to its shareholders, except (i) regular
quarterly dividends on its Common Stock at a quarterly rate not in excess of
$.___ per share, (ii) pre-Mergers cash distributions to shareholders of record
immediately prior to the Effective Time in an aggregate amount equal to the
amount by which the estimated Net Asset Value of PSBP (as defined below) as of
the Effective Time exceeds the estimated Net Asset Value of PSBP as of March 31,
1996 and (iii) additional pre-Mergers cash distributions required to satisfy
PSBP's REIT distribution requirements (the number of PSI Shares issued in the
Mergers and the amount receivable upon Cash Elections would be reduced on a pro
rata basis in an aggregate amount equal to such additional distributions). For
this purpose, the Net Asset Value of PSBP is the sum of (a) the fair market
value of PSBP's real estate assets as determined by appraisal by Charles R.
Wilson & Associates, Inc. as of October 31, 1995, and (b) the book value of
PSBP's non-real estate assets as of the date of determination, and less (c)
PSBP's liabilities as of the date

                                      A-11
<PAGE>
 
of determination.  The determination of book value and liabilities shall be from
PSBP's financial statements prepared in accordance with generally accepted
accounting principles on a basis consistent with prior periods.

               6.8.3   PSI Distributions. PSI shall not, at any time prior to
the Effective Time, declare, set aside or make payment of any cash distributions
or distribution of assets to its shareholders except for regular quarterly
dividends.

      7.  Conditions.
 
          7.1  Conditions to Each Party's Obligations. The respective
obligations of each party to consummate the transactions contemplated by this
Agreement are subject to the fulfillment at or prior to the Closing of each of
the following conditions, any or all of which may be waived in whole or in part,
to the extent permitted by applicable law:

               7.1.1   PSP9 and PSBP Shareholder Approval. This Agreement and
the transactions contemplated hereby shall have been duly approved by the
shareholders of PSP9 and PSBP as contemplated by Section 6.2.

               7.1.2   Governmental and Regulatory Consents. All filings
required to be made prior to the Effective Time with, and all consents,
approvals, permits and authorizations required to be obtained prior to the
Effective Time from, governmental and regulatory authorities in connection with
the execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby (including the expiration of the waiting period
requirements of the HSR Act) shall have been made or obtained (as the case may
be) without material restrictions, except where the failure to obtain such
consents, approvals, permits and authorizations could not reasonably be expected
to have a material adverse effect on PSI, PSP9 or PSBP.

               7.1.3   Litigation. No court or governmental or regulatory
authority of competent jurisdiction shall have enacted, issued, promulgated,
enforced or entered any statute, rule, regulation, judgment, decree, injunction
or other order (whether temporary, preliminary or permanent) or taken any action
which prohibits the consummation of the transactions contemplated by this
Agreement; provided, however, that the party invoking this condition shall use
its best efforts to have any such judgment, decree, injunction or other order
vacated.

               7.1.4   Registration Statement. The S-4 Registration Statement
shall have been declared effective and no stop order suspending effectiveness
shall have been issued, no action, suit, proceeding or investigation by the SEC
to suspend the effectiveness thereof shall have been initiated and be
continuing, and all necessary approvals under federal and state securities laws
relating to the issuance or trading of the PSI Shares shall have been received.

               7.1.5   Listing of PSI Shares on NYSE. The PSI Shares shall have
been approved for listing on the NYSE upon official notice of issuance.

               7.1.6   Fairness Opinion. The Boards of Directors of PSP9 and
PSBP shall have received the opinion of Robert A. Stanger & Co., Inc. in form
and substance satisfactory to them to the effect that the consideration to be
received by the shareholders of PSP9 and PSBP in the Mergers is fair to such
shareholders from a financial point of view, and such opinion shall not have
been withdrawn or revoked.

               7.1.7   Tax Opinion. The Boards of Directors of PSI, PSP9 and
PSBP shall have received a legal opinion of Hogan & Hartson that the Merger will
qualify as a tax-free reorganization under Section 368(a) of the Internal
Revenue Code of 1986, as amended.

               7.1.8   PSI Board Approval. This Agreement and the transactions
contemplated hereby shall have been duly approved by the Board of Directors of
PSI.

                                      A-12
<PAGE>
 
          7.2  Conditions to Obligations of PSI.  The obligations of PSI to
consummate the transactions contemplated by this Agreement are subject to the
fulfillment at or prior to the Closing of the following conditions, which may be
waived in whole or in part by PSI to the extent permitted by applicable law:

               7.2.1   Accuracy of Representations; Performance of Agreements.
Each of the representations and warranties of PSP9 and PSBP contained in this
Agreement shall be true and correct in all material respects at and as of the
Closing Date as if made at and as of the Closing Date (except to the extent they
relate to a particular date) and PSP9 and PSBP shall have performed or complied
with all agreements and covenants required by this Agreement to be performed or
complied with by it at or prior to the Closing.

               7.2.2   Certificate of Officers.  PSI shall have received such
certificates of officers of PSP9 and PSBP as PSI may reasonably request in
connection with the Closing, including a certificate satisfactory to it of the
Chief Executive Officer and the Chief Financial Officer of PSP9 and PSBP, to the
effect that, to the best of their knowledge, all representations and warranties
of PSP9 and PSBP contained in this Agreement are true and correct in all
material respects at and as of the Closing Date as if made at and as of the
Closing Date, and PSP9 and PSBP have performed or complied with all agreements
and covenants required by this Agreement to be performed or complied with by
them at or prior to the Closing.

               7.2.3   Title to Properties; Environmental Audits. PSI in its
sole discretion shall be satisfied as to the status of title to (including the
existence and effect of liens and encumbrances), and the results of an
environmental audit of, each of the real properties owned by PSP9 and PSBP.

               7.2.4   Trading Price of PSI Shares. The average of the per share
closing prices of the PSI Shares on the NYSE during the 20 consecutive trading
days ending on the fifth trading day prior to the meeting of shareholders of
PSP9 and PSBP provided for in Section 6.2 hereof (the "Average PSI Share Price")
shall be not less than $18.

               7.2.5   Dissenting Shares. The number of Dissenting Shares shall
be less than 5% of the outstanding PSP9 Shares in the case of PSP9 and less than
5% of the outstanding PSBP Shares in the case of PSBP.

          7.3  Conditions to Obligations of PSP9 and PSBP.  The obligations of
PSP9 and PSBP to consummate the transactions contemplated by this Agreement are
subject to the fulfillment at or prior to the Closing of the following
conditions, which may be waived in whole or in part by PSP9 and PSBP to the
extent permitted by applicable law.

               7.3.1   Accuracy of Representations; Performance of Agreements.
Each of the representations and warranties of PSI contained in this Agreement
shall be true and correct in all material respects at and as of the Closing Date
as if made at and as of the Closing Date (except to the extent they relate to a
particular date) and PSI shall have performed or complied in all material
respects with all agreements and covenants required by this Agreement to be
performed or complied with by it at or prior to the Closing.

               7.3.2   Certificate of Officers. PSP9 and PSBP shall have
received such certificates of officers of PSI as PSP9 and PSBP may reasonably
request in connection with the Closing, including a certificate satisfactory to
it of the Chief Executive Officer and the Chief Financial Officer of PSI, to the
effect that, to the best of their knowledge, all representations and warranties
of PSI contained in this Agreement are true and correct in all material respects
at and as of the Closing Date as if made at and as of the Closing Date, and PSI
has performed or complied with all agreements and covenants required by this
Agreement to be performed or complied with by it at or prior to the Closing.

          7.4  Separate Mergers.  Neither the merger of PSP9 into PSI nor the
merger of PSBP into PSI is conditioned on the other.  If the conditions to one
of the Mergers are satisfied or waived, such merger will be consummated on the
terms provided in this Agreement, notwithstanding that the conditions to the
other Merger have not been satisfied or waived.

                                      A-13
<PAGE>
 
     8.  Termination.

         8.1  Termination by Mutual Consent. This Agreement may be terminated
and the Mergers may be abandoned at any time prior to the Effective Time, before
or after shareholder approval, by the mutual written consent of PSI, PSP9 or
PSBP.

         8.2  Termination by PSI, PSP9 or PSBP. This Agreement may be terminated
and the Mergers may be abandoned by action of the Board of Directors of PSI,
PSP9 or PSBP if (i) the Mergers shall not have been consummated by December 31,
1996 (provided that the right to terminate this Agreement under this Section
8.2(i) shall not be available to any party whose failure to fulfill any
obligation under this Agreement has been the cause of or resulted in the failure
of the Mergers to occur on or before such date); (ii) any court of competent
jurisdiction in the United States or some other governmental body or regulatory
authority shall have issued an order, decree or ruling or taken any other action
permanently restraining, enjoining or otherwise prohibiting the Mergers and such
order, decree, ruling or other action shall have become final and nonappealable;
or (iii) the shareholders of PSP9, in the case of the merger of PSP9 into PSI,
or the shareholders of PSBP, in the case of the merger of PSBP into PSI, shall
have failed to approve this Agreement and the transactions contemplated hereby
at their respective meetings of shareholders.

         8.3  Termination by PSI. This Agreement may be terminated by PSI, and
the Mergers may be abandoned at any time prior to the Effective Time, as to the
defaulting party if (i) PSP9 or PSBP shall have failed to comply in any material
respect with any of the covenants, conditions or agreements contained in this
Agreement to be complied with or performed by such party at or prior to such
date of termination, which failure to comply has not been cured within five
business days following notice to such party of such failure to comply, or (ii)
any representation or warranty of PSP9 or PSBP contained in this Agreement shall
not be true in all material respects when made, which inaccuracy or breach (if
capable of cure) has not been cured within five business days following notice
to such party of the inaccuracy or breach, or on and as of the Closing as if
made on and as of the Closing Date.

         8.4  Termination by PSP9 or PSBP. This Agreement may be terminated by
PSP9 or PSBP and the Mergers may be abandoned at any time prior to the Effective
Time, before or after shareholder approval, if (i) PSI shall have failed to
comply in any material respect with any of the covenants, conditions or
agreements contained in this Agreement to be complied with or performed by PSI
at or prior to such date of termination, which failure to comply has not been
cured within five business days following notice to PSI of such failure to
comply, or (ii) any representation or warranty of PSI contained in this
Agreement shall not be true in all material respects when made, which inaccuracy
or beach (if capable of cure) has not been cured within five business days
following notice to PSI of the inaccuracy or breach, or on and as of the Closing
as if made on and as of the Closing Date.

         8.5  Effect of Termination and Abandonment. In the event of termination
of this Agreement and abandonment of the Mergers pursuant to this Section 8, no
party (or any directors, officers, employees, agents or representatives of any
party) shall have any liability or further obligation to any other party or any
person who controls a party within the meaning of the Securities Act, except as
provided in Section 9.1 and except that nothing herein will relieve any party
from liability for any breach of this Agreement.

     9.  Miscellaneous.

         9.1  Payment of Expenses. If the Mergers are consummated, the Surviving
Corporation shall pay all the expenses incident to preparing for, entering into
and carrying out this Agreement and the consummation of the transactions
contemplated hereby. If the Mergers are not consummated, each of PSI, PSP9 and
PSBP shall pay its own expenses, except that any expenses incurred in connection
with the printing of the S-4 Registration Statement and the Joint Proxy
Statement and Prospectus, the real estate appraisals and environmental audits of
PSP9's and PSBP's properties and preparation for real estate closings, and any
filing fees under the HSR Act, the Securities Act and the Securities Exchange
Act of 1934, as amended shall be paid 50% by PSI, 25% by PSP9 and 25% by PSBP.

         9.2  Survival of Representations, Warranties and Covenants. The
respective representations and warranties of PSI, PSP9 and PSBP contained herein
or in any certificate or document delivered pursuant hereto shall expire with
and be terminated and extinguished by the effectiveness of the Mergers and shall
not survive the Effective

                                      A-14
<PAGE>
 
Time. The sole right and remedy arising from a misrepresentation or breach of
warranty, or from the failure of any of the conditions to be met, shall be the
termination of this Agreement by the other party. This Section 9.2 shall not
limit any covenant or agreement of the parties, which by its terms contemplates
performance after the Effective Time.

         9.3  Modification or Amendment. The parties may modify or amend this
Agreement by written agreement authorized by the Boards of Directors and
executed and delivered by officers of the respective parties; provided, however,
that after approval of this Agreement by the shareholders of a party, no
amendment shall be made which changes any of the principal terms of the Mergers
or this Agreement, without the approval of such shareholders.

         9.4  Waiver of Conditions. The conditions to each of the parties'
obligations to consummate the Mergers are for the sole benefit of such party and
may be waived by such party in whole or in part to the extent permitted by
applicable law.

         9.5  Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of California, without giving effect to
the principles of conflict of laws thereof.

         9.6  Interpretation. This Agreement has been negotiated by the parties
and is to be interpreted according to its fair meaning as if the parties had
prepared it together and not strictly for or against any party. Each of the
capitalized terms defined in this Agreement shall, for all purposes of this
Agreement (and whether defined in the plural and used in the singular, or vice
versa), have the respective meaning assigned to such term in the Section in
which such meaning is set forth. References in this Agreement to "parties" or a
"party" refer to parties to this Agreement unless expressly indicated otherwise.
At each place in this Agreement where the context so requires, the masculine,
feminine or neuter gender includes the others and the singular or plural number
includes the other. "Including" means "including without limitation."

         9.7  Headings. The descriptive headings contained in the Sections and
subsections of this Agreement are for convenience of reference only and shall
not affect in any way the meaning or interpretation of this Agreement.

         9.8  Parties in Interest. This Agreement, and the rights, interests and
obligations created by this Agreement, shall bind and inure to the benefit of
the parties and their respective successors and permitted assigns, and shall
confer no right, benefit or interest upon any other person, including
shareholders of the respective parties.

         9.9  Notices. All notices or other communications required or permitted
under this Agreement shall be in writing and shall be delivered personally or
sent by U.S. mail, postage prepaid, addressed as follows or such other address
as the party to be notified has furnished in writing by a notice given in
accordance with this Section 9.9:

              If to PSI:
 
              Public Storage, Inc.
              600 North Brand Boulevard, Suite 300
              Glendale, California 91203-1241
              Attention:  Harvey Lenkin
                          President

              If to PSP9:

              Public Storage Properties IX, Inc.
              600 North Brand Boulevard, Suite 300
              Glendale, California 91203-1241
              Attention:  B. Wayne Hughes
                          Chief Executive Officer
  
              If to PSBP:

                                      A-15
<PAGE>
 
               PS Business Parks, Inc.
               600 North Brand Boulevard, Suite 300
               Glendale, California 91203-1241
               Attention:  B. Wayne Hughes
                           Chief Executive Officer

Any such notice or communication shall be deemed given as of the date of
delivery, if delivered personally, or on the second day after deposit with the
U.S. Postal Service, if sent by U.S. mail.

         9.10  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 be considered one and the same agreement.

         9.11  Assignment. No rights, interests or obligations of either party
under this Agreement may be assigned or delegated without the prior written
consent of the other party.

         9.12  Entire Agreement. This Agreement, including the Merger Agreement,
embodies the entire agreement and understanding between the parties pertaining
to the subject matter hereof, and supersedes all prior agreements,
understandings, negotiations, representations and discussions, whether written
or oral.

         9.13  Severable Provisions. If any of the provisions of this Agreement
may be determined to be illegal or otherwise unenforceable, in whole or in part,
the remaining provisions, and any partially enforceable provisions to the extent
enforceable, shall nevertheless be binding and enforceable.

         9.14  Further Action. If at any time after the Effective Time, the
Surviving Corporation shall determine that any assignments, transfers, deeds or
other assurances are necessary or desirable to vest, perfect or confirm, of
record or otherwise, in the Surviving Corporation, title to any property or
rights of PSP9 or PSBP, the officers of any Constituent Corporation are fully
authorized in the name of PSP9 or PSBP or otherwise to execute and deliver such
documents and do all things necessary and proper to vest, perfect or confirm
title to such property or rights in the Surviving Corporation.

     IN WITNESS WHEREOF, the parties have entered into this Agreement as of the
date first above written.

                              PUBLIC STORAGE, INC.


                              By:   /s/ HARVEY LENKIN
                                 ---------------------------------
                                    Harvey Lenkin
                                    President


                              PUBLIC STORAGE PROPERTIES IX, INC.


                              By:   /s/ B. WAYNE HUGHES
                                 ---------------------------------
                                    B. Wayne Hughes
                                    Chief Executive Officer


                              PS BUSINESS PARKS, INC.


                              By:   /s/ B. WAYNE HUGHES
                                 ---------------------------------
                                    B. Wayne Hughes
                                    Chief Executive Officer

                                      A-16
<PAGE>

                                                         EXHIBIT A TO APPENDIX A

                              AGREEMENT OF MERGER


          THIS AGREEMENT OF MERGER ("Agreement") is entered into as of this
_____ day of _______________, 1995, by and between PUBLIC STORAGE, INC., a
California corporation ("PSI"), and [PUBLIC STORAGE PROPERTIES IX, INC., a
California corporation ("PSP9") or PS BUSINESS PARKS, INC. ("PSBP")], with
reference to the following:

          A.   PSI was incorporated in 1980 under the laws of California, and on
the date hereof its authorized capital stock consists of 200,000,000 shares of
Common Stock, $.10 par value (the "PSI Shares"), ___________ of which are issued
and outstanding, and 50,000,000 shares of Preferred Stock ($.01 par value),
___________ of which are issued and outstanding.

          B.   __________ was incorporated in _____ under the laws of
California, and on the date hereof has __________ shares of Common Stock Series
A, $.01 par value (the "_____ Shares") outstanding.  __________'s Common Stock
Series B and Common Stock Series C have been fully converted and are no longer
authorized or outstanding.

          C.   PSI, PSP9 and PSBP have entered into an Agreement and Plan of
Reorganization dated as of December 13, 1995 (the "Plan"), setting forth certain
representations, warranties, conditions and agreements pertaining to the Merger
(as defined below).

          D.   The Boards of Directors of PSI and __________ have approved the
Plan and this Agreement of Merger, and the requisite shareholder approval has
been obtained.

          NOW, THEREFORE, the parties agree as follows:

                                   ARTICLE I
                                   ---------

               1.1   The Merger. At the Effective Time (as defined below),
__________ will be merged with and into PSI (the "Merger") and PSI shall be the
surviving corporation. PSI and __________ are sometimes collectively referred to
herein as the "Constituent Corporations" and PSI, as the surviving corporation
of the Merger, is sometimes referred to herein as the "Surviving Corporation."

               1.2   Effective Time. The Merger shall become effective at the
time at which this Agreement, together with the requisite Officers' Certificates
of PSI and __________, are filed with the California Secretary of State (the
"Effective Time").

               1.3   Effect of the Merger. At the Effective Time:

                     (a)  The separate corporate existence of __________ shall
cease and the Surviving Corporation shall thereupon succeed, without other
transfer, to all the rights and property of __________ and shall be subject to
all the debts and liabilities of __________ in the same manner as if the
Surviving Corporation had itself incurred them; all rights of creditors and all
liens upon the property of each of the Constituent Corporations shall be
preserved unimpaired, provided that such liens upon property of __________ shall
be limited to the property affected thereby immediately prior to the Effective
Time; and any action or proceeding pending by or against __________ may be
prosecuted to judgment, which shall bind the Surviving Corporation, or the
Surviving Corporation may be proceeded against or substituted in its place.

                     (b)  The Articles of Incorporation and the Bylaws of PSI,
as then amended, shall continue to be the Articles of Incorporation and the
Bylaws of the Surviving Corporation until changed as provided by law and their
respective provisions.

                                     E.A-1
<PAGE>
 
                     (c)  The directors of PSI shall continue as directors of
the Surviving Corporation until their successors are elected and qualified as
provided by law and in accordance with the Articles of Incorporation and Bylaws
of the Surviving Corporation.

                                   ARTICLE II
                                   ----------

               2.1   Conversion of __________ Shares. The manner of converting
the outstanding __________ Shares into cash and/or PSI Shares shall be as
follows:

                     (a)  At the Effective Time, subject to Section 2.6 of the
Plan, each __________ Share as to which a cash election has been made in
accordance with the provisions of Section 2.5 of the Plan and has not been
revoked, relinquished or lost pursuant to Section 2.5 of the Plan (the "Cash
Election Shares") shall be converted into and shall represent the right to
receive $_______ in cash (the "Cash Election Price"). As soon as practicable
after the Effective Time, the registered holders of Cash Election Shares shall
be paid the cash to which they are entitled hereunder in respect of such Cash
Election Shares.

                     (b)  At the Effective Time, subject to Sections 2.4, 2.5
and 2.7 of the Plan, each __________ Share (other than Cash Election Shares)
shall be converted into ______ PSI Shares.

               2.2   No Fractional Shares. Notwithstanding any other term or
provision of this Agreement or the Plan, no fractional PSI Shares and no
certificates or script therefor, or other evidence of ownership thereof, will be
issued in the Merger. In lieu of any such fractional share interests, each
holder of __________ Shares who would otherwise be entitled to such fractional
share will, upon surrender of the certificate representing such __________
shares, receive a whole PSI Share if such fractional share to which such holder
would otherwise have been entitled is .5 of an PSI Share or more, and such
fractional share shall be disregarded if it represents less than .5 of an PSI
Share; provided, however, that, such fractional share shall not be disregarded
if such fractional share to which such holder would otherwise have been entitled
represents .5 of 1% or more of the total number of PSI Shares such holder is
entitled to receive in the Merger. In such event, such holder shall be paid an
amount in cash (without interest), rounded to the nearest $.01, determined by
multiplying (i) the per share closing price on the New York Stock Exchange, Inc.
of the PSI Shares at the Effective Time by (ii) the fractional interest.

               2.3   Dissenting Shares. __________ Shares held by a holder who
has demanded and perfected his right to an appraisal of such shares in
accordance with Section 1300 et seq. of the General Corporation Law of
California (the "GCLC") and who has not effectively withdrawn or lost his right
to appraisal ("Dissenting Shares") shall not be converted into or represent the
right to receive cash and/or PSI Shares, but the holder thereof shall be
entitled only to such rights as are granted by Section 1300 et seq. of the GCLC.
Each holder of Dissenting Shares who becomes entitled to payment for __________
Shares pursuant to these provisions of the GCLC shall receive payment therefor
from the Surviving Corporation in accordance therewith. If any holder of
__________ Shares who demands appraisal in accordance with Section 1300 et seq.
of the GCLC shall effectively withdraw with the consent of the Surviving
Corporation or lose (through failure to perfect or otherwise) his right to
appraisal with respect to __________ Shares, such __________ Shares shall
automatically be converted into the right to receive PSI Shares pursuant to
Section 2.1(b) hereof.

               2.4   PSI Shares Unaffected. The Merger shall effect no change in
any of the outstanding PSI Shares and no outstanding PSI shares shall be
converted or exchanged as a result of the Merger, and no cash shall be
exchangeable and no securities shall be issuable, with respect thereto.

               2.5   Cancellation of Shares Held or Owned by Parties. At the
Effective Time, any __________ Shares owned by PSI shall be cancelled and
retired and no shares shall be issuable, and no cash shall be exchangeable, with
respect thereto.

               2.6   Exchange of Certificates. After the Effective Time, each
holder of a certificate theretofore evidencing outstanding __________ Shares
which were converted into PSI Shares pursuant hereto, upon surrender of such
certificate to First National Bank of Boston (the "Exchange Agent") or such
other agent or agents

                                     E.A-2
<PAGE>
 
as shall be appointed by the Surviving Corporation, shall be entitled to receive
a certificate representing the number of whole PSI Shares into which the
__________ Shares theretofore represented by the certificate so surrendered
shall have been converted and cash payment in lieu of fractional share
interests, if any. As soon as practicable after the Effective Time, the Exchange
Agent will send a notice and a transmittal form to each holder of __________
Shares of record at the Effective Time whose stock shall have been converted
into PSI Shares, advising such holder of the effectiveness of the Merger and the
procedure for surrendering to the Exchange Agent certificates evidencing
__________ Shares in exchange for certificates evidencing PSI Shares.

               2.7   Status Until Surrendered. Until surrendered as provided in
Section 2.6 hereof, each outstanding certificate which, prior to the Effective
Time, represented __________ Shares (other than Cash Election Shares and
Dissenting Shares, if any) will be deemed for all corporate purposes to evidence
ownership of the number of whole PSI Shares into which the __________ Shares
evidenced thereby were converted. However, until such outstanding certificates
formerly evidencing __________ Shares are so surrendered, no dividend payable to
holders of record of PSI Shares shall be paid to the holders of such outstanding
certificates in respect of __________ Shares, but upon surrender of such
certificates by such holders there shall be paid to such holders the amount of
any dividends (without interest) theretofore paid with respect to such whole PSI
Shares as of any record date on or subsequent to the Effective Time and the
amount of any cash (without interest) payable to such holder in lieu of
fractional share interests.

               2.8   Transfer of Shares. After the Effective Time, there shall
be no further registration of transfers of __________ Shares on the records of
__________ and, if certificates formerly evidencing such shares are presented to
the Surviving Corporation, they shall be cancelled and exchanged for
certificates evidencing PSI Shares and cash in lieu of fractional share
interests as herein provided.

                                  ARTICLE III
                                  -----------

               3.1   Headings. The descriptive headings contained in the
Sections of this Agreement are for convenience of reference only and shall not
affect in any way the meaning or interpretation of this Agreement.

               3.2   Parties in Interest. This Agreement, and the rights,
interests and obligations created by this Agreement, shall bind and inure to the
benefit of the parties and their respective successors and permitted assigns.

               3.3   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 be considered one and the same agreement.

               3.4   Further Action. If at any time after the Effective Time,
the Surviving Corporation shall determine that any assignments, transfers, deeds
or other assurances are necessary or desirable to vest, perfect or confirm, of
record or otherwise, in the Surviving Corporation, title to any property or
rights of __________, the officers of either Constituent Corporation are fully
authorized in the name of __________ or otherwise to execute and deliver such
documents and do all things necessary and proper to vest, perfect or confirm
title to such property or rights in the Surviving Corporation.

               3.5   Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of California, without giving
effect to the principles of conflict of laws thereof.

                                     E.A-3
<PAGE>
 
               3.6   Abandonment of Merger. The Constituent Corporations have
the power to abandon the Merger by mutual written consent prior to the filing of
this Agreement with the California Secretary of State.

               IN WITNESS WHEREOF, the parties have entered into this Agreement
as of the date first above written.

                              PUBLIC STORAGE, INC.



                              By: _____________________________
                                    Harvey Lenkin
                                    President



                              By: _____________________________
                                    Obren B. Gerich
                                    Senior Vice President


                              [PUBLIC STORAGE PROPERTIES IX, INC.
                                          or
                               PB BUSINESS PARKS, INC.]



                              By: _____________________________
                                    B. Wayne Hughes
                                    Chairman of the Board and
                                    Chief Executive Officer



                              By: _____________________________
                                    Obren B. Gerich
                                    Secretary


                                     E.A-4
<PAGE>
 
                                                                    Appendix B-1



                              APPRAISAL OF A
                              FIFTEEN-PROPERTY PORTFOLIO
                              NATIONWIDE
                              
                              
                              
                              PREPARED FOR
                              PUBLIC STORAGE INC. and
                              PUBLIC STORAGE PROPERTIES IX, INC.
                              600 NORTH BRAND BOULEVARD
                              3RD FLOOR
                              GLENDALE, CALIFORNIA
                              
                              
                              
                              PREPARED BY
                              CHARLES R. WILSON & ASSOCIATES, INC.
                              595 EAST COLORADO BOULEVARD
                              SUITE -518-
                              PASADENA, CALIFORNIA 91101


                              OCTOBER  1995
<PAGE>
 
   October 31, 1995

   PUBLIC STORAGE PROPERTIES IX, INC.
   and PUBLIC STORAGE INC.
   600 North Brand Boulevard, 3/rd/ Floor
   Glendale, California  91221

   Re:  Market Value Appraisal
        Fifteen-Property Portfolio
        Job File No. 950188

   Self-Storage
   ------------
   Project #00901     680 Hegenberger Road, Oakland, California
   Project #00902     12299 South Saratoga Sunnyvale Road, Saratoga, California
   Project #00903     9201 Liberty Road, Randallstown, Maryland
   Project #00904     2801 Avenue K, Plano, Texas
   Project #00905     12090 Fondren Road, Houston, Texas
   Project #00906     18 Hughes Street, Irvine, California
   Project #00909     900 West Layton Avenue, Milwaukee, WI
   Project #00910     1707 I-35 East, Carrollton, Texas
   Project #00911     3501 Lomita Boulevard, Torrance, California
   Project #00912     8523 Baymeadows Road, Jacksonville, Florida
   Project #00913     8939 East R.L. Thornton Freeway, Dallas, Texas
   Project #00914/*/  9811 North Freeway, Houston, Texas
   Project #00915     7 Wever Road, Baltimore, Maryland
   Project #00917     125 Railroad Avenue, New Haven, Connecticut

   Business Park
   -------------
   Project #00908     10-16 Hughes Street, Irvine, California

   /*/Includes retail/office space.

   Gentlemen:

   According to your request and authorization, we have prepared a limited
   appraisal of the above-referenced portfolio described in the attached
   document, entitled Property Identification and Classification, and formed an
   opinion of their Fee Simple Market Value.  The accompanying appraisal report,
   of which this letter is a part, briefly describes each property and method of
   appraisal.

   This report is presented in a restricted format and cannot be fully
   understood without additional information supporting the appraisal, which has
   been retained in the working files of the appraiser.

   PURPOSE OF APPRAISAL
   --------------------

   The purpose of the appraisal is to estimate the aggregate market value of the
   portfolio in connection with a proposed merger with Public Storage Inc.,
   (PSI).
<PAGE>
 
   Market Value Appraisal
   Public Storage Properties IX, Inc.
   Page -3-

   This report, presented in a restricted format, is intended for use only by
   the clients or their advisors.  It may be referred to in solicitation
   materials and distributed to the shareholders of Public Storage Properties
   IX, Inc. (PSP9) or PSI in connection with the proposed merger.

   SCOPE OF ASSIGNMENT
   -------------------

   The accompanying report describes the appraisal process undertaken.  In
   accordance with our agreement, the scope of this assignment has been limited,
   as described herein, but is in conformity with the Departure Provision of
   Uniform Standards of Professional Appraisal Practice (USPAP).  The client
   must consider the value may be impacted to the degree there is a departure
   from specific USPAP Guidelines.  However, this valuation analysis has
   utilized the two most appropriate approaches to value.  We did not consider
   the Cost Approach to be applicable.  Based upon our contact with
   knowledgeable self storage investors, owners and managers little reliance is
   placed upon the Cost Approach, particularly as to properties the age and type
   of those included in the portfolio.  Therefore, we have employed both the
   Income and Sales Comparison Approaches.  We have relied most heavily on the
   Income Approach which is supported by actual market data found in the Sales
   Comparison Approach.  In our opinion, we have performed all actions necessary
   to ensure an accurate valuation of the portfolio.

   Your attention is directed to the Assumptions and Limiting Conditions and
   description of the appraisal process set forth on the accompanying pages
   which are an integral part our report.  Only the summary conclusions are
   presented in this report.

   VALUE CONCLUSIONS
   -----------------

   Aggregate Market Value

   The market value estimate set forth herein is a gross value estimate and does
   not include either a premium or a discount a potential buyer may assign to a
   portfolio of properties as a result of its size.  Based on our experience
   with buyers and sellers of properties of the type included in the portfolio,
   it would be inappropriate to assign either a premium or discount.
   Furthermore, the market value estimate herein assumes that the properties
   would be disposed of in an orderly manner, allowing sufficient time for
   exposure of each property on the open market.

   Based upon the analysis made, it is our opinion that the Fee Simple Market
   Value of the Portfolio, as of October 31, 1995, is:

                FORTY FIVE MILLION FOUR HUNDRED THOUSAND DOLLARS
                ------------------------------------------------
                                 ($45,400,000)

   Sincerely
   CHARLES R. WILSON & ASSOCIATES, INC.

   /S/ CHARLES R. WILSON

   Charles R. Wilson, MAI, CRE
   State of California
   Certification #AG002172
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

NATURE OF ASSIGNMENT AND DEFINITIONS

This report sets forth a summary of the analysis and valuation conclusions.  In
accordance with our agreement, the Limited Appraisal presented in a restricted
report format represents a departure from a full narrative appraisal but has
been prepared in conformity with the Departure Provision of the Uniform
Standards of Professional Appraisal Practice Guidelines.

Property Identification and Classification

The subject properties are located in 15 separate locations in seven states and
are specifically identified by street address below:

<TABLE>
<CAPTION>
                                                                              Net    No.
                                                                      Rentable SF  Units
                                                                      -----------  -----
Self-Storage
- ------------
<S>            <C>                                                    <C>          <C>          
      00901    680 Hegenberger Road, Oakland, CA....................       59,295    497
      00902    12299 S. Saratoga Sunnyvale Road, Saratoga, CA.......       88,003    689
      00903    9201 Liberty Road, Randallstown, MD..................       74,750    652
      00904    2801 Avenue K, Plano, TX.............................       51,850    453
      00905    12090 Fondren Road, Houston, TX......................       57,610    464
      00906    18 Hughes, Irvine, CA................................       60,500    501
      00909    900 West Layton Avenue, Milwaukee, WI................       53,650    443
      00910    1707 I-35 East, Carrollton, TX.......................       56,775    472
      00911    3501 Lomita Boulevard, Torrance, CA..................       53,867    795
      00912    8523 Baymeadows Road, Jacksonville, FL...............       58,550    458
      00913    8939 East R.L. Thornton Freeway, Dallas, TX..........       41,350    329
      00914    9811 North Freeway, Houston, TX......................       67,625    499
      00915    7 Wever Road, Baltimore, MD..........................       57,325    512
      00917    123 Railroad Avenue, New Haven, CT...................       54,175    443
                                                                          -------  -----
Subtotal Self-Storage...............................................      835,325  7,207

Business Parks
- --------------
      00908    10-16 Hughes Street, Irvine, CA......................       70,286     34
  /*/ 00916    9811 North Freeway, Houston, TX......................       46,580     26
                                                                          -------  -----
Subtotal Business Park..............................................      116,866     60
 
TOTAL COMBINED......................................................      952,191  7,267
                                                                          =======  =====
</TABLE>
/*/Represents business park component of property 00914.

Purpose, Function and Scope of the Appraisal

The purpose of this appraisal is to estimate the Fee Simple Market Value of the
portfolio and to present a summary of conclusions.

The function of this appraisal is for use only by our clients, Public Storage
Properties IX, Inc. (PSP9), and their advisors in connection with the proposed
merger of PSP9 with Public Storage, Inc. (PSI).

The scope of this assignment is in accordance with an agreement between Charles
R. Wilson & Associates, Inc. and PSP9.  In connection with this portfolio
valuation, the following actions have been taken as described more fully in the
section entitled Valuation Methodology.

 .   Inspections were conducted by Charles R. Wilson, MAI/CRE or a representative
    of Charles R. Wilson & Associates, Inc.

 .   Physical descriptive information was provided by the subject's on-site
    managers and from previous appraisals of the subject properties performed by
    Charles R. Wilson & Associates, Inc.


                                       1
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio


 . Demographic information including population trends, household income,
  employment, average housing prices and rental rates was obtained from Scan/US.

 . A rental survey of competitive facilities was provided by on-site managers of
  the subject facilities.  The information was verified by phone calls and other
  sources.

 . Self Storage Data Services, Inc. (SSDS), an affiliate company of Charles R.
  Wilson & Associates, Inc., provided operating income and expense information
  on facilities nationwide from its database of over 23,600 self storage
  facilities.

 . Historical income and expense information on each of the subject properties
  was provided by PSI, the property manager, and compared to the operating
  information found in the SSDS database.

 . In the cash flow analysis, the actual operating history of each of the subject
  properties was evaluated based on the experience of Charles R. Wilson &
  Associates, Inc., which have appraised over 200 self storage facilities during
  the past twelve months.

 . Discount rates, capitalization rates, and growth rates for income and expenses
  were derived from data on actual sales of similar properties, surveys of self
  storage operators/investors throughout the United States, and our market
  experience over the past twenty years.  Surveying self storage investor's
  criteria is an ongoing function of Charles R. Wilson & Associates, Inc., and
  SSDS, Inc.

 . The Sales Comparison Approach is based on 51 sales of self storage facilities
  which have occurred since September 1994.

 . Two of the subject properties are business parks.  Three of the self-storage
  properties contain office or retail/showroom type space.  Rental income and
  expense information for these facilities were derived in the same manner as
  the self storage data, including lease summaries.  The capitalization and
  yield rates reflect these improvements.

Property Rights Appraised

The property rights appraised consist of the Fee Simple Estate.  Due to the
short-term, month-to-month tenancies in the facilities, and the fact that rents
are at market levels, a Fee Simple Interest is appropriate.

According to the Appraisal Institute, Dictionary of Real Estate Appraisal, 2nd
Edition, 1989, p. 123, "Fee Simple Estate" is defined as:   "Absolute ownership
unencumbered by any other interest or estate; subject only to the limitations of
eminent domain, escheat, police power, and taxation."

Market Value Definition

The following Market Value definition is based on Uniform Standards of
Professional Appraisal Practice regulations and standards.

"Market Value" means the most probable price which a property should bring in a
competitive and open market under all conditions requisite to a fair sale, the
buyer and seller each acting prudently and knowledgeably, and assuming the price
is not affected by undue stimulus.  Implicit in this definition is the
consummation of a sale as of a specified date and the passing of title from
seller to buyer under conditions whereby:

1.   Buyer and seller are typically motivated;

2.   Buyer and seller are well informed or well advised, and acting in what they
     consider their own best interest;

3.   A reasonable time is allowed for exposure on the open market;

4.   Payment is made in cash in U.S. dollars or in terms of financial
     arrangements comparable thereto; and

                                       2
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio


5.   The price represents the normal consideration for the property sold
     unaffected by special or creative financing or sales concessions granted by
     anyone associated with the sale.

Source: Office of the Comptroller of the Currency under 12 CRF, part 34, Subpart
        C-Appraisals, 34.43 Definitions [f].

MARKET OVERVIEW

An overall analysis of the self storage marketplace is important, because supply
and demand for space plays a key role in determining a property's value.  This
overview summarizes factors that apply to the portfolio's property type and
analyzes the trends in supply and demand.

In survey after survey, we have found that self storage investors believe
capitalization rates are in the 10% to 11% range, which is supported by our
analysis of over 531 sales nationwide.  Our analysis of 531 sales over the past
eleven years shows that capitalization rates have not changed significantly over
time.  They typically range between 10% and 11%, excluding un-stabilized or
distress facilities.

Value changes occur as a result of variations in collected income, primarily
effected by occupancy, and due to variations in expenses.  The perceived risk on
the part of major investors has not changed significantly.  This is particularly
true when comparing capitalization rates for self storage facilities to
capitalization rates for multi-tenanted industrial buildings.

In 1994, most operators played catch up on rental rates.  Physical and economic
occupancy reached the 90% plus level.  Thus, owners and operators started
increasing rents to existing tenants who had been paying below market rates.  At
the same time rental concessions were eliminated.  Therefore, the significant
increases we observed during 1994 and most of 1995 should start to slow.  Future
rental increases should occur at a more normal pace consistent with or somewhat
below the general inflation rate within a range of 3% to 3.5% annually.

Significant market improvement occurred as the result of a total lack of new
construction during the past several years.  This allowed demand to catch up
with the huge supply of space that was placed on the market during the late
1980's.

Based upon the appraisal of over 200 facilities during the past 12 months, and
upon the information from the Self Storage Data Systems, Inc. database of actual
operating histories, we can draw the following conclusions about today's
national self storage market:

 .    Collected income nationwide should continue to increase, but at slower
     rates than was experienced during the past 18 to 24 months.  Rental
     concessions have declined or have ceased altogether in most markets.

 .    Economic occupancy has stabilized at slightly over 90% in most markets.

 .    While more lenders are looking closely at self storage, construction
     financing is still limited to a relatively few smaller size banks.
     However, several markets have numerous proposed construction projects.

 .    Capitalization rates of well located, properly designed and managed,
     stabilized facilities are generally in the 10% to 11% range nationwide.
     Sales in Southern California are toward the lower end of that range.

 .    Property values have been increasing due to increases in collected income
     and not due to lower capitalization rates.

 .    The investment market for self storage facilities continues to improve
     faster than other property types which are still recovering from the
     overbuilding that occurred in the 1980s.

In short, the self storage market is strong and should remain so in the
foreseeable future.  The continued lack of construction financing should prevent
massive  overbuilding in the near term.  We would expect that in most markets,
increased rental rates will shortly encounter tenant resistance.

                                       3
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

VALUATION METHODOLOGY

Analysis and Valuation of the subject properties involved determining the
highest and best use of the sites, estimating the value of the subjects by
current appraisal theory, and reconciling to a final estimate of value.

The term "highest and best use," as used in this report, is defined as follows:
"The reasonably probable and legal use of vacant land or an improved property,
which is physically possible, appropriately supported, financially feasible, and
that results in the highest value."

SOURCE: Appraisal Institute, The Dictionary of Real Estate Appraisal, 3rd
        Edition, 1993, p. 171.

In considering the highest and best use of the properties in this portfolio, we
believe that each facility is producing net operating income in excess of a
reasonable land value.  Therefore, we have concluded that the Highest and Best
Use of each property, as improved and as if vacant, is its existing use as a
self storage facility.  No other use would warrant their removal or alteration
from their current and intended use.

This valuation analysis has considered all appropriate approaches to value,
namely: the Cost, Income, and Sales Comparison Approach.

The Cost Approach is based upon the proposition that the informed purchaser
would pay no more than the cost of producing a substitute property with the same
utility as the subject property.  The Cost Approach is particularly applicable
when the property being appraised involves relatively new improvements which
represent the highest and best use of the land and when relatively unique or
specialized improvements are located on the site and for which there exists no
comparable properties in the marketplace.

The Income Capitalization Approach is a procedure in appraisal analysis which
converts the anticipated benefits (dollar income or amenities) to be derived
from the ownership of property into a value estimate.  The Income Capitalization
Approach is widely applied in appraising income producing properties.
Anticipated future income and/or reversions are discounted to a present worth
figure through the capitalization process.

The Sales Comparison Approach is based upon the principle that an informed
purchaser would pay no more for a property than the cost of acquiring an
existing property with the same utility.  This approach is applicable when an
active market provides sufficient quantities of reliable data which can be
verified from authoritative sources.  The Sales Comparison Approach is
relatively unreliable in an inactive market or in estimating the value of
properties for which no real comparable sales data is available.

In all instances, we considered the Income and Sales Comparison Approaches to be
most applicable for the subject properties.  Based on our contact with property
buyers and sellers and others knowledgeable of recent transactions, today's
investors do not rely on the Cost Approach, particularly as to properties the
age and type of those included in the portfolio.  Therefore, we have employed
both the Income and Sales Comparison Approaches to value all properties.

Inspections were made of each property and interviews with PSMI personnel were
conducted to learn of any deferred maintenance items that needed correcting, any
known environmental conditions, as well as general information on the overall
condition of the property.  Questionnaires were completed by each on-site
manager concerning performance of the subject property and market competitors.
Demographic information on each market was reviewed to gain insight about local
economic trends.  Consideration has been given to significant variations in
quality among the various portfolio of properties including: property income
potential, quality of location and construction, tenant appeal, access,
viability and potential competition.

Valuation Analysis

Income Approach
- ---------------

The Income Approach utilized both direct and yield capitalization.  In both
instances, the analysis was premised upon a survey of competitive properties in
order to determine market rental rates, occupancy, and expense levels.  In
addition, we reviewed each property's previous four year's operating statement.
Ancillary income included: late fees, administrative fees, lock sales, packing
material sales, etc.  Rental concessions if any were analyzed and taken

                                       4
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

into consideration.  Utilizing the SSDS database of operating statistics, the
actual operating experience of self storage facilities in each subject's market
area were compared to the subjects' actual expenses to determine the
reasonableness of each item of expense.  Stabilized levels of income and
expenses were determined.

Using direct capitalization, the net operating income was capitalized into a
value estimate using overall capitalization rates derived directly from the
market (see Sales Comparison Approach below).  Overall capitalization rates in
the market generally ranged from 10% to 11%.

In applying yield capitalization, we studied acquisition criteria of investors
in self storage, and analyzed recent sales for valuation indicators such as
overall capitalization rates, effective gross rent multipliers and prices being
paid per square foot.  We also consulted published sources of investment
criteria for other types of real estate.

A ten-year discounted cash flow analysis of the self storage facilities, ending
on June 30, 2005 was prepared.  Using the investment criteria discussed above,
the income and expenses were increased 3% to 3.5% annually based on local market
conditions.  Real estate taxes for the California properties are based on a sale
and reassessment as of the date of value and increased at 2% per annum, per
California law.  The residual value was determined by capitalizing the eleventh
year income at a terminal capitalization rate between 10.25% and 10.5% and then
deducting 3% for sales costs.  The yearly cash flows and the properties'
residual values were discounted to present worth using a discount rate between
13% and 13.50%.

A ten-year discounted cash flow analysis of the two business park projects
ending in August 2006 was also prepared.  Using the investment criteria
discussed above, an escalation rate of 4% was used to inflate income and
expenses on both business parks reflective of expectation of the parks.  For
California properties, real estate taxes were adjusted to reflect projected
taxes after a re-evaluation transaction and subsequently escalated at two
percent per annum.  The residual value of each property was determined by
capitalizing the eleventh year income at a terminal capitalization rate of
10.50% and then deducting 3% for sales costs.  The yearly cash flows and the
properties' residual values were discounted to present worth using unleveraged
discount rates of 12.25% to 12.75%.

The indicated value of the portfolio based upon the Income Approach is
$45,554,000.

Sales Comparison Approach
- -------------------------

In the Sales Comparison Approach, we relied upon an analysis of 51 sales of self
storage properties which occurred during the past 12 months.  The sales were
analyzed on the basis of effective gross rent multipliers, overall
capitalization rates and sales price per square foot of net rentable area.  A
regression analysis of the relationship between net operating income and sales
price per square foot was prepared.  The value conclusion derived in the Income
Approach was compared to the conclusions derived from the Sales Comparison
Approach to determine the reasonableness of the value conclusion by the Income
Approach.  Differences in time of sale, location, and physical characteristics
between the sale comparables and each subject property were taken into
consideration.  Based upon the portfolio's net income per square foot, using the
regression analysis, the indicated value ranged between $41,900,000 and
$48,560,000.

Value Conclusion
- ----------------

Considering that the departure provision has been invoked, it is our opinion
that we have performed actions necessary to develop an opinion as to the market
value of the portfolio.

The value conclusion from both approaches was then reconciled into our final
value conclusion of $45,400,000.  Most weight was given the Income Approach, as
this is the methodology employed by today's investors in self storage.

                                       5
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

GENERAL ASSUMPTIONS & LIMITING CONDITIONS

Standards Rule ("S.R.") 2-1 of the "Standards of Professional Practice" of the
Appraisal Institute requires the appraiser to "clearly and accurately disclose
any extraordinary assumption or limiting condition that directly affects an
appraisal analysis, opinion, or conclusion."  In compliance with S.R. 2-1, and
to assist the reader in interpreting this report, such assumptions and limiting
conditions are set forth as follows:

1.  The date of value to which the conclusions and opinions expressed in this
    report apply is set forth in the letter of transmittal. Further, the dollar
    amount of any value opinion rendered in this report is based upon the
    purchasing power of the American dollar existing on that date.
  
2.  The appraiser assumes no responsibility for economic or physical factors
    which may affect the opinions in the report which occur after the date of
    the letter transmitting the report.

3.  Forecasts of anticipated revenue and expenses were based on our analysis of
    market trends, economic conditions, and historical operating results of the
    properties. Such forecasts are dependent on assumptions as to future
    economic, social and political conditions, as well as market related
    activity. They represent our opinion of current investor attributes and
    motivations applicable to the class of property appraised, and no warranty
    or representation that these forecasts will materialize is implied.
  
4.  The information furnished by others is believed to be reliable. However, no
    warranty is given for its accuracy.
  
5.  No opinion as to title is rendered. Data related to ownership and legal
    description was obtained from public records and is considered reliable.
    Title is assumed to be marketable and free and clear of all liens,
    encumbrances, easements and restrictions except those specifically discussed
    in the report. The properties are appraised assuming they will be under
    responsible ownership and competent management, and available for their
    highest and best use.
  
6.  The appraiser reserves the right to make such adjustments to the analyses,
    opinions and conclusions set forth in this report as may be required by
    consideration of additional data or more reliable data that may become
    available.
  
7.  The appraiser assumes no responsibility for hidden or unapparent conditions
    of the properties, subsoil, or structures that render them more or less
    valuable. No responsibility is assumed for arranging for engineering studies
    that may be required to discover them.
  
8.  The properties are appraised assuming that all applicable zoning and use
    regulations and restrictions have been complied with, unless otherwise
    stated.
  
9.  The properties are appraised assuming that all required licenses,
    certificates of occupancy, consents, or other legislative or administrative
    authority from any local, state, or national government or private entity or
    organization have been, or can be, obtained or renewed for any use on which
    the value estimate contained in this report is based, unless otherwise
    stated.

10. No engineering survey has been made by the appraiser. Except as specifically
    stated, data relative to size and area was taken from sources considered
    reliable, and no encroachment of real property improvements is considered to
    exist.

11. No soil tests or environmental studies were available. It is assumed that
    there are no sub-surface, toxic waste or building material hazards in or on
    the properties that would adversely affect their existing or potential use.

12. Unless specifically stated, this appraisal does not take into consideration
    the possibility of the existence of asbestos, PCB transformers, or other
    toxic, hazardous, or contaminated substances and/or underground storage
    tanks (hazardous material), or the cost of encapsulation or removing
    thereof.

13. No opinion is expressed as to the value of subsurface oil, gas or mineral
    rights or whether the properties are subject to surface entry for the
    exploration or removal of such materials except as is expressly stated.

                                       6
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

14. Maps, plats and exhibits included in this report are for illustration only
    as an aid in visualizing matters discussed within the report.  They should
    not be considered as surveys or relied upon for any other purpose, nor
    should they be removed from, reproduced, or used apart from this report.

15. No opinion is intended to be expressed for matters which require legal
    expertise or specialized investigation or knowledge beyond that customarily
    employed by real estate appraisers.

16. Except as consented to in the letter of transmittal, possession of this
    report, or a copy of it, does not carry with it the right of publication.
    It may not be used for any purpose by any person other than the party to
    whom it is addressed without the written consent of the appraiser, and in
    any event only with proper written qualification and only in its entirety.

17. Testimony or attendance in court or at any other hearing is not required by
    reason of rendering this appraisal, unless such arrangements are made a
    reasonable time in advance relative to such additional employment.

18. Disclosure of the contents of this appraisal report is governed by the By-
    Laws and Regulations of the Appraisal Institute.

19. Except as consented to in the letter of transmittal, neither all nor any
    part of the contents of this report (especially any conclusions as to value,
    the identity of the appraisers, or any reference to the Appraisal Institute,
    or the MAI or SRA designation) shall be disseminated to the public through
    advertising media, public relations media, news media, sales media, or any
    other public means of communication without the prior written consent and
    approval of the author.

                                       7
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio

SPECIFIC ASSUMPTIONS AND LIMITING CONDITIONS

1. The physical description and current condition of each subject property was
   based upon a combination of previous appraisals, inspections by
   representatives of Charles R. Wilson & Associates, Inc., and information
   provided by Public Storage Properties Fund IX and it's property manager PSMI.
   Charles R. Wilson & Associates, Inc. assumes no responsibility for the
   soundness of structural members nor for the condition of mechanical
   equipment, plumbing or electrical components.

2. Pursuant to the Engagement Agreement, the content of the appraisal report has
   been limited as presented herein.  This report is not intended to meet the
   requirements of Title XI of the Federal Financial Institutions Reform,
   Recovery and Enforcement Act of 1989.  Therefore, federally regulated
   institutions should not rely on this report for financing purposes.

3. The portfolio valuation reported herein does not reflect any premium or
   discount a potential buyer may assign to the portfolio of properties as a
   result of its size.  Neither a premium nor a discount is appropriate based on
   our experience with buyers and sellers of self storage facilities.

4. This valuation analysis assumes that capitalization and discount rates used
   in the market for valuing individual properties are appropriate to apply to a
   portfolio's cash flow for the purpose of estimating the portfolio's fair
   market value.

5. This valuation covers only the real properties described herein and only
   applies to the valuation problems as stated and does not include
   consideration of mineral rights or related right of entry, nor personal
   property or the removal thereof.  Values reported herein are not intended to
   be valid in any other context, nor are any conclusions as to unit values
   applicable to any other property or utilization than that specifically
   identified herein.  No value has been assigned to any personal property,
   fixtures or intangible items that are not real property, except for that
   equipment and personal property considered usual and incidental to the
   operation of the facilities such as golf carts, office supplies, computer
   systems, etc.

6. This report invokes the Departure Provision as follows:

   Standard Rule 1-2 (c), states that the appraiser must, "consider easements,
   restrictions, encumbrances, reservations, covenants, contracts, declarations,
   special assessments, ordinances, or other items of a similar nature".   The
   effect of any easements, encumbrances, and similar items were not taken into
   consideration in this valuation analysis.  We were not provided copies of
   title reports, deed restrictions or similar items nor are we aware of any
   restrictions or similar items existing that could have an impact on our
   valuation of the portfolio.  At the request of the clients, this valuation
   analysis does not consider any such restrictions.

   Standard Rule 1-3 (a), states that the appraiser must "consider the effect on
   use and value of the following factors: existing land use regulations,
   reasonably probable modification of such land use regulations, economic
   demand, the physical adaptability of the property, neighborhood trends, and
   the highest and best use of the property".  City and county officials were
   not interviewed and thus it is assumed that each property complies with city
   and county building codes and zoning ordinances.

   Standard Rule 1-4 (a) states the appraiser must "collect, verify, analyze and
   reconcile: ...(iv) such comparable rental data, adequately identified and
   described, as are available to estimate the market rental of the property
   being appraised;..."  Each on-site manager provided the appraiser with
   competition surveys.  The rental rates were verified and used to determine
   market rent, however, no physical inspections were made of competing
   facilities.

7. For properties located in California, real estate taxes used in the Income
   Approach are adjusted to reflect a fair sale as is standard practice in
   California in compliance with Proposition 13.

                                       8
<PAGE>
 
Appraisal: Public Storage Properties IX, Inc., 15-Property Portfolio


CERTIFICATION


The appraiser certifies, to the best of his knowledge and belief, that:

- -  The statements of fact contained in this report are true and correct.

- -  The reported analyses, opinions and conclusions are limited only by the
   reported assumptions and limiting conditions and are the appraisers'
   personal, unbiased professional analyses, opinions and conclusions.

- -  The appraiser has no present or prospective interest in the property that is
   the subject of this report and no personal interest or bias with respect to
   the parties involved.

- -  The appraisers' compensation is not contingent upon the reporting of a
   predetermined value or direction in value that favors the cause of the
   client, the amount of the value estimate, the attainment of a stipulated
   result, or the occurrence of a subsequent event.

- -  Receipt of the appraisal assignment was not based upon a requested minimum
   value, a specific value or approval of a loan.

- -  The appraiser's analyses, opinions, and conclusions were developed and this
   report has been prepared in conformity with the agreement between Charles R.
   Wilson & Associates, Inc., and Public Storage Properties IX, Inc.  The
   appraisers have relied upon the departure provisions of Uniform Standards of
   Professional Appraisal Practice (USPAP).

- -  The use of this report is subject to the requirements of the Appraisal
   Institute relating to review by its duly authorized representatives.

- -  As of the effective date of this report, October 31, 1995, Charles R. Wilson,
   MAI/CRE has completed the requirements of the continuing education program of
   the Appraisal Institute.

- -  Inspections of the properties in this portfolio were made by Charles R.
   Wilson, MAI, CRE or a representative of Charles R. Wilson & Associates, Inc.,
   between August 18 and  October 20, 1995.

- -  Our firm's analyses, opinions and conclusions were not developed nor is this
   report intended to comply with the appraisal related mandates within Title XI
   of the Federal Financial Institution's Reform, Recovery and Enforcement Act
   of 1989 (FIRREA).

- -  The date of this report, October 31, 1995, indicates that the perspective of
   the appraisers on the market conditions as of the effective date of the
   appraisal.

- -  The appraiser's estimate of aggregate As Is Market Value for the portfolio as
   of October 31, 1995 in Fee Simple estate is:  $45,400,000.

- -  The appraisers have extensive experience in appraising properties similar to
   the portfolio.

Respectfully submitted,
CHARLES R. WILSON & ASSOCIATES, INC.


/S/ CHARLES RAY WILSON
- ----------------------------
Charles Ray Wilson, MAI, CRE
State of California
Certification No. AG002172

                                       9
<PAGE>
 
                              VOLUME II
                              PUBLIC STORAGE PROPERTIES IX, INC.
                              A -15- PROPERTY
                              PORTFOLIO VALUATION





                              SUPPORTING DOCUMENTATION
                              TO THE MARKET VALUE APPRAISAL
                              DATED OCTOBER 1995



                              CHARLES R. WILSON & ASSOCIATES, INC.
                              595 EAST COLORADO BOULEVARD
                              SUITE 518
                              PASADENA, CALIFORNIA 91101
<PAGE>
 
     October 31, 1995




     PUBLIC STORAGE PROPERTIES IX, INC.
     and PUBLIC STORAGE INC.
     600 North Brand Boulevard
     3rd Floor
     Glendale, California  91221


     Re:    Support Documentation for Market Value Appraisal
            PUBLIC STORAGE PROPERTIES IX, INC.
            -15- Property Portfolio


     Gentlemen:

     Pursuant to your request, enclosed is supporting documentation compiled in
     connection with the above referenced portfolio appraisal report, dated
     October 27, 1995.  The information contained herein supports the
     conclusions of the above referenced appraisal report and should only be
     used in evaluating such report.  No opinion is expressed as to the value of
     a single property nor should any other conclusion be drawn with respect to
     the information presented herein.

     No reference may be made to any data contained herein without the written
     consent of Charles R. Wilson & Associates, Inc.


     CHARLES R. WILSON & ASSOCIATES, INC.
<PAGE>
 
INCOME  APPROACH
 
<TABLE> 
<CAPTION> 
Project
Number                                                               Value
- -------                                                             -------
<S>                                                               <C> 
Self-Storage
   00901  680 Hegenberger Road, Oakland, CA...............        $ 3,550,000
   00902  12299 S. Saratoga Sunnyvale Road, Saratoga, CA..          7,810,000
   00903  9201 Liberty Road, Randallstown, MD.............          4,530,000
   00904  2801 Avenue K, Plano, TX........................          2,160,000
   00905  12090 Fondren Road, Houston, TX.................          1,800,000
   00906  18 Hughes, Irvine, CA...........................          3,090,000
   00909  900 West Layton Avenue, Milwaukee, WI...........          1,800,000
   00910  1707 I-35 East, Carrollton, TX..................          1,920,000
   00911  3501 Lomita Boulevard, Torrance, CA.............          4,720,000
   00912  8523 Baymeadows Road, Jacksonville, FL..........          2,370,000
   00913  8939 East R.L. Thornton Freeway, Dallas, TX.....          1,040,000
   00914  9811 North Freeway, Houston, TX.................          1,470,000
   00915  7 Wever Road, Baltimore, MD.....................          2,800,000
   00917  125 Railroad Avenue, New Haven CT...............          2,450,000
                                                                  -----------
Subtotal Self-Storage.....................................        $41,510,000
 
Business Parks
   00908  10-16 Hughes Street, Irvine, CA.................          3,300,000
/*/00916  9811 North Freeway, Houston, CA.................            744,000
                                                                  -----------
Subtotal Business Parks...................................          4,044,000
                                                                  -----------
 
TOTAL PORTFOLIO...........................................        $45,554,000
                                                                  ===========
</TABLE>

/*/Business park component of property 00914.


SALES COMPARISON APPROACH

During the course of this and other recent assignments, we have investigated
sales of self storage facilities nationwide.  Our research disclosed 51 sales
which have transferred during the past 12 months wherein information on sale
price per square foot, effective gross income multipliers and overall
capitalization rate data was available.

In the Income Approach, we relied upon this information in estimating the
residual capitalization rates in performing Direct Capitalization and considered
the range in Effective Gross Income Multipliers when evaluating the results of
our discounted cash flow analyses.

A summary of all the pertinent sales data disclosed is included in the addenda
of this report.  This data set establishes the value parameters applicable to
the subject portfolio.  An analysis of this data suggests a strong correlation
(R-Square of 0.94) between net operating income and sales price on a per square
foot basis.  That is to say, given the net operating income per square foot, one
can predict the probable selling price with a considerable degree of confidence.

In this instance, we have several years of actual operating history upon which
to estimate stabilized net operating income.  The portfolio's stabilized net
operating income is $4.94 per square foot and based upon the analysis of the
sales in the addenda, the value of the portfolio should be approximately $47.30
per square foot.  We have included the two business parks which represent 10% of
the total NOI and 14% or the total square footage.  Using one standard
deviation, the range would be between $44.00 and $51.00 per square foot.

Based upon our valuation conclusion as derived by the Income Approach, the
subject's value equates to $47.84 per square foot and is within a reasonable
range.

Thus, it is our opinion the indicated value of the portfolio by the Sales
Comparison Approach using a regression analysis is $45,040,000 or $47.30 per
square foot.
<PAGE>
 
RECONCILIATION

<TABLE> 
<S>                                                        <C> 
Income Approach.......................................     $45,554,000
Sales Comparison Approach.............................     $45,040,000
 
</TABLE> 

The Income Approach was premised upon actual operating history that is supported
by information on the performance of competitive facilities within the market.
Overall capitalization rates were derived directly from the comparables which
have transferred within the past few months.  Most emphasis has been placed on
this approach.

The Sales Comparison Approach supports the conclusion reached by the Income
Approach.  The quality of the comparable data would dictate most weight be given
the Income Approach as it most closely reflects the actual performance of the
entire portfolio.

                          Final Value Conclusion as of
                              October 31, 1995 is:

                FORTY FIVE MILLION FOUR HUNDRED THOUSAND DOLLARS
                ------------------------------------------------
                                 ($45,400,000)
<PAGE>
 
                                                                    Appendix B-2



                              APPRAISAL OF A
                              PS BUSINESS PARK (05101)
                              OLD OAKLAND ROAD
                              1630 OLD OAKLAND ROAD
                              SAN JOSE, CALIFORNIA



                              PREPARED FOR
                              PS BUSINESS PARKS, INC.
                              and PUBLIC STORAGE, INC.
                              600 NORTH BRAND BOULEVARD
                              THIRD FLOOR
                              GLENDALE, CALIFORNIA



                              PREPARED BY
                              CHARLES R. WILSON & ASSOCIATES, INC.
                              595 EAST COLORADO BOULEVARD
                              SUITE -518-
                              PASADENA, CALIFORNIA 91101
 

                              NOVEMBER 1995
<PAGE>
 
November 1, 1995

PS BUSINESS PARKS, INC.
and PUBLIC STORAGE, INC.
600 North Brand Boulevard, 3rd Floor
Glendale, CA 91203

Re:  Market Value Appraisal
     PS Business Park - Old Oakland Road
     PSI Project 05101
     1630 Old Oakland Road, San Jose, CA
     Job File #950205

Gentlemen:

In accordance with your request and authorization, we have appraised the above-
referenced multi-tenant industrial park and formed an opinion of its Leased Fee
Market Value.  The subject property consists of a four-building 173,237 gross /
rentable square foot industrial park.  The buildings have concrete tilt-up and
wood frame construction and are demised into smaller research/light
industrial/office units which average 1,520 square feet.  The property is
located in the City of San Jose, in Santa Clara County.

The park was constructed in 1986 and is currently 99% occupied by a variety of
non-credit office and light industrial tenants.  Based on the overall occupancy
of the park and our survey of the market, the subject is at its long term level
of stabilized occupancy.

The accompanying report, of which this letter is a part, is a restricted report
of a complete appraisal performed on the subject property.  This complete
appraisal has been performed under the self-contained appraisal report option of
the Uniform Standards of Professional Appraisal Practice of the Appraisal
Foundation.  This report is presented in a restricted format and cannot be fully
understood without additional information contained in the complete self-
contained appraisal report.

This report is intended for use only the clients or their advisors.  It may be
included in and referred to in solicitation materials filed with the Securities
and Exchange Commission and distributed to the shareholders of PS Business
Parks, Inc. (PSBP) or Public Storage Inc. (PSI) in connection with the proposed
merger.

The following value estimate is based on a marketing time of nine months.
Support for this conclusion is based upon conversations with market
participants, as well as evidence from comparable sales.  We have estimated that
nine months represents a reasonable time frame whereby the subject should
capture market attention and solidify a sale at or around the estimated value.

Based upon an inspection of the subject environs and all discoverable factors
that influence value, it is our conclusion that the Leased Fee Market Value of
the property described in this report, as of October 31, 1995, is:

                  ELEVEN MILLION FIVE HUNDRED THOUSAND DOLLARS
                                 ($11,500,000)
<PAGE>
 
PS Business Parks, Inc.
Project 05101
Page Two


Steven R. Norris, MAI, inspected the subject property.  Charles Ray Wilson, MAI,
CRE did not inspect the subject of this appraisal; however, he has reviewed the
accompanying report and concurs with the value estimate.  The above value
estimate is predicated on the Assumptions and Limiting Conditions stated in this
report.  We appreciate the opportunity to be of service to PS Business Parks,
Inc., and Public Storage, Inc., and we look forward to future consultations at
your request.


Sincerely
CHARLES R. WILSON & ASSOCIATES, INC.


/S/ STEPHEN R. NORRIS
- ----------------------------
Steven R. Norris, MAI
State of California
Certification No. AG001677


/S/ CHARLES RAY WILSON
- ----------------------------
Charles Ray Wilson, MAI, CRE
State of California
Certification No. AG002172
<PAGE>
 
                               APPRAISAL SUMMARY


Client:                     PS Business Parks, Inc., and
                            Public Storage, Inc.
                    
Owner of Record:            PS Business Parks, Inc.
                    
Location:                   1630 Old Oakland Road
                            San Jose, California
                    
Assessor's Parcel:          No. 241-17-002, 006, 007 and 008
Map Page:                   Santa Clara County, Thomas Bros., Pg. 55-A3
                    
Purpose and Function
of Appraisal:               The purpose of this appraisal is to estimate the
                            Leased Fee Market Value; the function is to assist
                            the clients in establishing value in connection with
                            a proposed sale or merger transaction.
                    
Interest Appraised:         Leased Fee
Date of Value:              October 31, 1995
                    
Land Area:                  358,063 SF / 8.22 Acres
Zoning:                     PD (Planned Development - Industrial)
                    
Improvements:               Four-building industrial park containing 173,237
                            gross and rentable square feet. The improvements
                            were constructed in 1986.

Remaining Economic Life:    31 years

Environmental Information:  No hazardous conditions were observed during our
                            routine site inspection.

Flood Zone:                 The subject is not located in a Special Flood Hazard
                            Area.

Seismic Zone:               The subject is not located within an Alquist-Priolo
                            Seismic Zone.



                            Market Value Conclusions
                             As of October 31, 1995
<TABLE>
<CAPTION>
 
<S>                                                              <C>
Replacement Cost Approach......................................  $ 9,300,000
Income Capitalization Approach.................................  $12,000,000
Sales Comparison Approach......................................  $11,300,000
                               
Reconciled Conclusion..........................................  $11,500,000
</TABLE>


                                       i
<PAGE>
 
                              NATURE OF ASSIGNMENT

Property Identification and Classification
- ------------------------------------------

The subject property is located in Santa Clara County, and specifically in the
City of San Jose. It consists of a four-building 173,237 rentable square foot
industrial park, constructed in 1986.  The development is currently 99%
occupied.

Purpose, Intended Use and Scope of the Appraisal
- ------------------------------------------------

The purpose of this appraisal is to estimate the Leased Fee Market Value as of
October 31, 1995.

The intended use of this appraisal is to assist the client in establishing value
in connection with a proposed sale or merger transaction.

The scope of this assignment involved:

  1.  An inspection of the subject site;

  2.  An inspection of the subject buildings;

  3.  A search of the public records for sales of land parcels within the
      neighborhood;

  4.  A regional search for improved sales and rental income data for comparable
      business park developments;

  5.  The verification of the real property transfers with buyers, sellers,
      brokers, and appraisers; and,

  6.  Research of local leasing activity and overall condition of the market.

Effective Date of the Appraisal
- -------------------------------

The effective date of this appraisal report is October 31, 1995.  Unless
otherwise stated, all factors pertinent to a determination of value were
considered as of this date.  The property was inspected on August 31, 1995 by
Steven R. Norris, MAI.

Property Rights Appraised (Leased Fee Interest)
- -----------------------------------------------

The type and duration of tenancies in the park indicate that a Leased Fee
valuation is the best reflection of market value.  According to the Appraisal
Institute, Dictionary of Real Estate Appraisal, 3rd Edition, 1993, page 204, the
           -----------------------------------                                  
term "leased fee estate," as used in this report, is defined as follows:

  "An ownership interest held by a landlord with the rights of use and occupancy
  conveyed by lease to others.  The rights of lessor (the leased fee owner) and
  leased fee are specified by contract terms contained within the lease."

The appraisal is a valuation of the Real Estate only.

Market Value Definition
- -----------------------

"Market Value" means the most probable price which a property should bring in a
competitive and open market under all conditions requisite to a fair sale, the
buyer and seller each acting prudently and knowledgeably, and assuming the price
is not affected by undue stimulus.  Implicit in this definition is the
consummation of a sale as of a specified date and the passing of title from
seller to buyer under conditions whereby:

     1. Buyer and seller are typically motivated;

                                       1
<PAGE>
 
     2. Buyer and seller are well informed or well advised, and acting in what
        they consider their own best interest;

     3. A reasonable time is allowed for exposure on the open market;

     4. Payment is made in cash in U.S. dollars or in terms of financial
        arrangements comparable thereto; and

     5. The price represents the normal consideration for the property sold
        unaffected by special or creative financing or sales concessions granted
        by anyone associated with the sale.

(Source: Office of the Comptroller of the Currency under 12 CRF, part 34,
Subpart C-Appraisals, 34.43 Definitions [f].)

VALUATION METHODOLOGY

Analysis and Valuation of the subject property involved determining the highest
and best use of the site, estimating the value of the subject by current
appraisal theory, and reconciling to a final estimate of value.

The term "highest and best use," as used in this report, is defined as follows:
"The reasonably probable and legal use of vacant land or an improved property,
which is physically possible, appropriately supported, financially feasible, and
that results in the highest value."

SOURCE: Appraisal Institute, The Dictionary of Real Estate Appraisal, 3rd
Edition, 1993, p. 171.

In considering the highest and best use of the property, we believe that the
facility is producing net operating income in excess of a reasonable land value.
Therefore, we have concluded that the Highest and Best Use, as improved and as
if vacant, is its existing use as an industrial park.  No other use would
warrant the removal of these existing improvements and bring a higher return to
the land.  As such, the subject is considered the highest and best use of the
site as improved.

This valuation analysis has considered all appropriate approaches to value,
namely: the Cost, Income, and Sales Comparison Approaches.

The Cost Approach is based upon the proposition that the informed purchaser
would pay no more than the cost of producing a substitute property with the same
utility as the subject property.  The Cost Approach is particularly applicable
when the property being appraised involves relatively new improvements which
represent the highest and best use of the land and when relatively unique or
specialized improvements are located on the site and for which there exists no
comparable properties in the marketplace.

The Income Capitalization Approach is a procedure in appraisal analysis which
converts the anticipated benefits (dollar income or amenities) to be derived
from the ownership of property into a value estimate.  The Income Capitalization
Approach is widely applied in appraising income producing properties.
Anticipated future income and/or reversions are discounted to a present worth
figure through the capitalization process.

The Sales Comparison Approach is based upon the principle that an informed
purchaser would pay no more for a property than the cost of acquiring an
existing property with the same utility.

This approach is applicable when an active market provides sufficient quantities
of reliable data which can be verified from authoritative sources.  The Sales
Comparison Approach is relatively unreliable in an inactive market or in
estimating the value of properties for which no real comparable sales data is
available.

Valuation Analysis

Cost Approach
- -------------

The Cost Approach requires valuing the site as if vacant and estimating the
costs associated with replacing the building and site improvements.  Deducted
from the replacement cost of the improvements is all evidence of depreciation.
The resulting figure plus the estimated land value provides a value indication
by the Cost Approach.

                                       2
<PAGE>
 
The first step of the Cost Approach is to estimate the value of the subject site
as if vacant.  The methodology used was a Sales Comparison Approach.  Land sales
of three sites within the subject area and within similar type environments were
surveyed and compared to the subject.

The second step within this Cost Approach is to estimate the replacement cost
new.  The replacement cost new is composed of direct costs, indirect costs, and
entrepreneurial profit.  The costs associated with the actual building and site
improvements are segregated into direct or hard costs and indirect or soft
costs.  Direct costs are primarily building materials and labor.  Indirect costs
involve permits, fees, taxes, plans, insurance, interim financing, leasing
commissions, and other related adjunct costs.  Entrepreneurial profit is an
additional cost that reflects a return to the developer for taking the risk
associated with developing the project.  Profit can vary depending on the type
of project, as well as market conditions.  As indicated, the sum of these three
items is called the Replacement Cost New.

After the reproduction cost new is calculated, all forms of depreciation
including physical, functional, and external depreciation are deducted from the
replacement cost new of the improvements.  This depreciated reproduction cost is
then added to the estimated land value in order to provide a value indication by
the Cost Approach.

The indicated value of the property using the Cost Approach is $9,300,000.

Income Approach
- ---------------

The Income Approach utilized both direct and yield capitalization.  In both
instances, the analysis was premised upon a survey of competitive properties in
order to determine market rental rates, occupancy, and expense levels.  In
addition, we reviewed the property's previous four year's operating statement.

Using direct capitalization, the net operating income was capitalized into a
value estimate using overall capitalization rates derived directly from the
market (see Sales Comparison Approach below).  Overall capitalization rates in
the market generally indicated a 10% rate is appropriate for the subject
property.

In applying yield capitalization, we studied acquisition criteria of investors
in self storage, and analyzed recent sales for valuation indicators such as
overall capitalization rates, effective gross rent multipliers and prices being
paid per square foot.  We also consulted published sources of investment
criteria for other types of real estate.

A ten-year discounted cash flow analysis of the property ending in August 2006
was also prepared.  Using the investment criteria discussed above, an escalation
rate of approximately 4% was used to inflate income and expenses reflective of
expectation of the property.  For California properties, real estate taxes were
adjusted to reflect projected taxes after a re-evaluation transaction and
subsequently escalated at 2% per annum.  The residual value of the property was
determined by capitalizing the eleventh year income at a terminal capitalization
rate of 11.0% and then deducting 2% for sales costs.  The yearly cash flows and
the property's residual values were discounted to present worth using an
unleveraged discount rates of 12.0%.

The indicated value of the property based upon the Income Approach is
$12,000,000.

Sales Comparison Approach
- -------------------------

The Sales Comparison Approach compared the subject property to five comparable
multi-tenant business park facilities having quality space similar to the
subject in the regional area of the subject facility which have recently been
sold or are listed for sale.  The cost per square foot of each of these
facilities was adjusted to be comparable to the subject.

Based on a concluded value of $65.00 per square foot, the indicated of the
subject property using the Sales Comparison Approach is $11,300,000.

                                       3
<PAGE>
 
Reconciliation
- --------------

The indicated values for the subject property as of October 31, 1995, are as
follows:

<TABLE>
<CAPTION>
                                                              Market
                                                               Value
                                                            -----------
<S>                                                         <C>
Replacement Cost Approach.................................  $ 9,300,000
Income Capitalization Approach............................  $12,000,000
Sales Comparison Approach.................................  $11,300,000
                               
Reconciled Conclusion.....................................  $11,500,000
</TABLE>

In the final value conclusion, equal consideration was given to both the Income
Approach and Sales Comparison Approaches.  The Cost Approach was viewed
primarily as a check on the two other approaches to value, and given no weight
in the final value estimate.

Therefore, the Leased Fee Market Value, as of October 31, 1995, is:

                  ELEVEN MILLION FIVE HUNDRED THOUSAND DOLLARS
                                 ($11,500,000)



                           ESTIMATE OF MARKETING TIME

The above value estimate is based on a marketing time of nine months.  Support
for this conclusion is based upon conversations with market participants, as
well as evidence from the comparable sales.  We have estimated that nine months
represents a reasonable time frame whereby the subject should capture market
attention and solidify a sale at or around the estimated value.

                                       4
<PAGE>
 
                       ASSUMPTIONS & LIMITING CONDITIONS

Standards Rule ("S.R.") 2-1 of the "Standards of Professional Practice" of the
Appraisal Institute requires the appraiser to "clearly and accurately disclose
any extraordinary assumption or limiting condition that directly affects an
appraisal analysis and indicate its impact on value."  In compliance with S.R.
2-1, and to assist the reader in interpreting this report, such assumptions and
limiting conditions are set forth as follows:

1.  The date of value to which the conclusions and opinions expressed in this
    report apply is set forth in the letter of transmittal. Further, the dollar
    amount of any value opinion rendered in this report is based upon the
    purchasing power of the American dollar existing on that date.
  
2.  The appraiser assumes no responsibility for economic or physical factors
    which may affect the opinions in the report which occur after the date of
    the letter transmitting the report.
  
3.  Forecasts of anticipated revenue and expenses were based on our analysis of
    market trends, economic conditions, and historical operating results of the
    property. Such forecasts are dependent on assumptions as to future economic,
    social and political conditions, as well as market related activity. They
    represent our opinion of current investor attributes and motivations
    applicable to the class of property appraised, and no warranty or
    representation that these forecasts will materialize is implied.
  
4.  The information furnished by others is believed to be reliable. However, no
    warranty is given for its accuracy.
  
5.  No opinion as to title is rendered. Data related to ownership and legal
    description was obtained from public records and is considered reliable.
    Title is assumed to be marketable and free and clear of all liens,
    encumbrances, easements and restrictions except those specifically discussed
    in the report. The property is appraised assuming it will be under
    responsible ownership and competent management, and available for its
    highest and best use.
  
6.  The appraiser reserves the right to make such adjustments to the analyses,
    opinions and conclusions set forth in this report as may be required by
    consideration of additional data or more reliable data that may become
    available.
  
7.  The appraiser assumes no responsibility for hidden or unapparent conditions
    of the property, subsoil, or structures that render it more or less
    valuable. No responsibility is assumed for arranging for engineering studies
    that may be required to discover them.
  
8.  The property is appraised assuming that all applicable zoning and use
    regulations and restrictions have been complied with, unless otherwise
    stated.
  
9.  The property is appraised assuming that all required licenses, certificates
    of occupancy, consents, or other legislative or administrative authority
    from any local, state, or national government or private entity or
    organization have been, or can be, obtained or renewed for any use on which
    the value estimate contained in this report is based, unless otherwise
    stated.

10. No engineering survey has been made by the appraiser. Except as specifically
    stated, data relative to size and area was taken from sources considered
    reliable, and no encroachment of real property improvements is considered to
    exist.

11. No soil tests or environmental studies were available. It is assumed that
    there are no sub-surface, toxic waste or building material hazards in the
    property that would adversely affect its existing or potential use.

12. Unless specifically stated, this appraisal does not take into consideration
    the possibility of the existence of asbestos, PCB transformers, or other
    toxic, hazardous, or contaminated substances and/or underground storage
    tanks (hazardous material), or the cost of encapsulation or removing
    thereof. Should client have concern over the existence of such substances on
    the property, we consider it imperative for you to retain the services of a
    qualified, independent engineer or contractor to determine the existence and
    extent of any hazardous materials, as well as the cost associated with any
    required or desirable treatment or removal thereof.

                                       5
<PAGE>
 
13. The lack of proper tenant screening, in some instances, has led to the
    abandonment of toxic and hazardous materials in some facilities. We assume
    this has not occurred in the subject of this appraisal.

14. No opinion is expressed as to the value of subsurface oil, gas or mineral
    rights or whether the property is subject to surface entry for the
    exploration or removal of such materials except as is expressly stated.

15. Maps, plats and exhibits included in this report are for illustration only
    as an aid in visualizing matters discussed within the report. They should
    not be considered as surveys or relied upon for any other purpose, nor
    should they be removed from, reproduced, or used apart from this report.

16. No opinion is intended to be expressed for matters which require legal
    expertise or specialized investigation or knowledge beyond that customarily
    employed by real estate appraisers.

17. The distribution, if any, of the total valuation in this report between land
    and improvements applies only under the stated program of utilization. The
    separate allocations for land and buildings must not be used in conjunction
    with any other appraisal and are invalid if so used.

18. Except as consented to in the letter of transmittal, possession of this
    report, or a copy of it, does not carry with it the right of publication. It
    may not be used for any purpose by any person other than the party to whom
    it is addressed without the written consent of the appraiser, and in any
    event only with proper written qualification and only in its entirety.

19. Testimony or attendance in court or at any other hearing is not required by
    reason of rendering this appraisal, unless such arrangements are made a
    reasonable time in advance relative to such additional employment.

20. Disclosure of the contents of this appraisal report is governed by the By-
    Laws and regulations of the Appraisal Institute.

21. Except as consented to in the Letter Transmittal, neither all nor any part
    of the contents of this report (especially any conclusions as to value, the
    identity of the appraisers, or any reference to the Appraisal Institute, or
    the MAI or SRA designation) shall be disseminated to the public through
    advertising media, public relations media, news media, sales media, or any
    other public means of communication without the prior written consent and
    approval of the author.

                                       6
<PAGE>
 
                                 CERTIFICATION

The appraisers certify, to the best of their knowledge and belief, that:

- -  The statements of fact contained in this report are true and correct.

- -  The reported analyses, opinions and conclusions are limited only by the
   reported assumptions and limiting conditions and are the appraisers'
   personal, unbiased professional analyses, opinions and conclusions.

- -  The appraisers' compensation is not contingent upon the reporting of a
   predetermined value or direction in value that favors the cause of the
   client, the amount of the value estimate, the attainment of a stipulated
   result, or the occurrence of a subsequent event.

- -  The appraisers have no present or prospective interest in the property that
   is the subject of this report and no personal interest or bias with respect
   to the parties involved.

- -  Receipt of the appraisal assignment was not based upon a requested minimum
   valuation, a specific valuation, or the approval of a loan.

- -  The appraisers' analyses, opinions and conclusions were developed, and this
   report has been prepared in conformity with the requirements of the Code of
   Professional Ethics and Standards of Professional Appraisal Practice of the
   Appraisal Institute, and the Uniform Standards of Professional Appraisal
   Practice (USPAP).  The appraisers have not relied upon any departure
   provisions of USPAP.

- -  The use of this report is subject to the requirements of the Appraisal
   Institute relating to review by its duly authorized representatives.

- -  As of the effective date of this report, Steven R. Norris, MAI, and Charles
   Ray Wilson, MAI, CRE, have completed the requirements of the continuing
   education program of the Appraisal Institute.

- -  The subject of this appraisal was inspected by Steven R. Norris, MAI.
   Charles Ray Wilson, MAI, CRE has not made a personal inspection of the
   property that is the subject of this report, but he has reviewed this report
   and concurs with the value conclusion.

- -  Our firm's analyses, opinions and conclusions were developed and this report
   is intended to comply with the appraisal related mandates within Title XI of
   the Federal Financial Institution's Reform, Recovery and Enforcement Act of
   1989 (FIRREA).

- -  No one provided professional assistance to the persons signing this report.

- -  The appraisers' estimate of "as is" market value for the subject property in
   Leased Fee Estate as of the date of value is as follows: $11,500,000.

- -  The appraisers have extensive experience in appraising properties similar to
   the subject.



/S/ STEPHEN R. NORRIS                   /S/ CHARLES RAY WILSON
- -----------------------------           ------------------------------
Steven R. Norris, MAI                   Charles Ray Wilson, MAI, CRE
State of California                     State of California
Certification No. AG001677              Certification No. AG002172

                                       7
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        Appendix C-1




The Special Committee of
  The Board of Directors of
Public Storage Properties IX, Inc.
600 North Brand Boulevard
Glendale, CA  91203

Gentlemen:

     We have been advised that Public Storage Properties IX, Inc. ("PSP9") is
entering into a transaction (the "Transaction") in which PSP9 will be merged
with Public Storage, Inc. ("PSI"), an affiliated, publicly traded real estate
investment trust.  In the Transaction, the shareholders of PSP9 will be asked to
approve the merger of PSP9 into PSI and the conversion of outstanding shares of
PSP9 Common Stock Series A (other than shares held by shareholders of PSP9 who
have properly exercised dissenters rights under California law ("Dissenting
Shares")) into newly issued shares of PSI Common Stock or, at the option of the
PSP9 shareholders with respect to up to 20% of the outstanding PSP9 Common
Stock, or 489,501 shares of PSP9 less any Dissenting Shares, cash (collectively,
the "Consideration").  We have been further advised that each share of PSP9
Common Stock, other than Dissenting Shares held by PSP9 shareholders, will be
converted into $18.64 (the net asset value per share of PSP9 Common Stock based
on an independent appraisal of PSP9's properties) in cash or shares of PSI
Common Stock with an equivalent market value based on average closing prices on
the New York Stock Exchange of PSI Common Stock during the twenty consecutive
trading days ending on the fifth trading day prior to the special meeting of the
shareholders of PSP9.  We also have been advised that (i) cash distributions
will be made to the shareholders of PSP9 prior to the consummation of the
Transaction to the extent required to cause PSP9's net asset value as of the
date of the Transaction to be substantially equivalent to the estimate of PSP9's
net asset value as of March 31, 1996 contained in the Joint Proxy Statement and
Prospectus filed with the Securities and Exchange Commission dated January 31,
1996, and (ii) if additional cash distributions are required to satisfy PSP9's
REIT distribution requirements for 1995 and are paid to PSP9 shareholders prior
to the consummation of the Transaction, the Consideration would be reduced to
reflect such additional cash distributions.

     PSP9 has formed a Special Committee of the Board of Directors to consider
certain matters relating to the Transaction, and the Special Committee has
requested that Robert A. Stanger & Co., Inc. ("Stanger") provide its opinion as
to the fairness to the public shareholders of PSP9, from a financial point of
view, of the Consideration to be received in the Transaction.

                                       1
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        


     In the course of our review to render this opinion, we have, among other
things:

     .  Reviewed the Joint Proxy Statement and Prospectus related to the
        Transaction and filed with the Securities and Exchange Commission on
        January 31, 1996;

     .  Reviewed PSP9's and PSI's annual reports to shareholders filed with the
        SEC on Form 10-K for the three fiscal years ending December 31, 1992,
        1993 and 1994, and PSP9's and PSI's quarterly reports filed with the SEC
        on Form 10-Q for the quarters ended March 31, 1995, June 30, 1995 and
        September 30, 1995, which reports PSP9's management and PSI's management
        have indicated to be the most current financial statements available;

     .  Reviewed the PSI pro forma financial statements and pro forma schedules
        prepared by PSP9's management and PSI's management;

     .  Reviewed the MAI-certified portfolio appraisal of the fifteen properties
        owned by PSP9 dated October 31, 1995 performed by Charles R. Wilson &
        Associates, Inc. (the "Appraisal"), and discussed with management of
        PSP9 and the appraiser the methodologies and procedures employed in
        preparing the Appraisal;

     .  Reviewed information regarding purchases and sales of self-storage
        properties by PSI or any affiliated entities during the prior 24-month
        period and other information available relating to acquisition criteria
        for self-storage properties;

     .  Reviewed internal financial analyses and forecasts prepared by PSP9, and
        based in part on the Appraisal, of the current net liquidation value per
        common share of PSP9's assets and projections of cash flow from
        operations, dividend distributions and going-concern values for PSP9;

     .  Discussed with members of senior management of PSP9 and PSI conditions
        in self-storage property markets, conditions in the market for
        sales/acquisitions of properties similar to those owned by PSP9, current
        and projected operations and performance, financial condition and future
        prospects of PSP9 and PSI;

     .  Reviewed historical market prices, trading volume and dividends for PSP9
        and PSI Common Stock; and

     .  Conducted other studies, analyses, inquiries and investigations as we
        deemed appropriate.

     In rendering this fairness opinion, we have relied upon and assumed,
without independent verification, the accuracy and completeness of all financial
and other information contained in the Joint Proxy Statement and Prospectus or
that was furnished or otherwise communicated to us by PSP9 and PSI.  We have not
performed an independent appraisal of the assets and

                                       2
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        


liabilities of PSP9 or PSI and have relied upon and assumed the accuracy of the
appraisals performed by Charles R. Wilson & Associates. We have also relied on
the assurance of PSP9 and PSI that any pro forma financial statements,
projections, budgets, or value estimates contained in the Joint Proxy Statement
and Prospectus or otherwise provided to us were reasonably prepared on bases
consistent with actual historical experience and reflecting the best currently
available estimates and good faith judgments; that no material changes have
occurred in the appraised value of the properties or the information reviewed
between the date of the Appraisal or the date of the other information provided
and the date of this letter; and that PSP9 and PSI are not aware of any
information or facts that would cause the information supplied to us to be
incomplete or misleading in any material respect.

     We have not been requested to, and therefore did not:  (i) select the
method of determining the Consideration offered in the Transaction; (ii) make
any recommendation to the shareholders of PSP9 or PSI with respect to whether to
approve or reject the Transaction or whether to select the cash or Common Stock
option in the Transaction; or (iii) express any opinion as to the business
decision to effect the Transaction, alternatives to the Transaction, or tax
factors resulting from the merger of PSMI into PSI or relating to PSI's
continued qualifications as a REIT.  Our opinion is based on business, economic,
real estate and securities markets, and other conditions as of the date of our
analysis and addresses the Transaction in the context of information available
as of the date of our analysis. Events occurring after that date may materially
affect the assumptions used in preparing the opinion.

     Based upon and subject to the foregoing, and in reliance thereon, it is our
opinion that as of the date of this letter the Consideration to be received in
the Transaction is fair to the public shareholders of PSP9, from a financial
point of view.

     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description. We have
advised the Board of Directors of PSP9 that our entire analysis must be
considered as a whole and that selecting portions of our analysis and the
factors considered by us, without considering all analyses and facts, could
create an incomplete view of the evaluation process underlying this opinion.

Yours truly,

/s/ ROBERT A. STANGER & CO., INC.

Robert A. Stanger & Co., Inc.
Shrewsbury, NJ
January 31, 1996

                                       3
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        Appendix C-2





The Special Committee of
  The Board of Directors of
PS Business Parks, Inc.
600 North Brand Boulevard
Glendale, CA  91203

Gentlemen:

     We have been advised that PS Business Parks, Inc. ("PSBP") is entering into
a transaction (the "Transaction") in which PSBP will be merged with and into
Public Storage, Inc. ("PSI"), an affiliated, publicly traded real estate
investment trust.  In the Transaction, the shareholders of PSBP will be asked to
approve the merger of PSBP into PSI and the conversion of outstanding shares of
PSBP Common Stock Series A (other than shares held by shareholders of PSBP who
have properly exercised dissenters rights under California law ("Dissenting
Shares")) into newly issued shares of PSI Common Stock or, at the option of the
PSBP shareholders with respect to up to 20% of the outstanding Common Stock, or
106,832 shares of PSBP less any Dissenting Shares, cash (collectively, the
"Consideration").  We have been further advised that each share of PSBP Common
Stock, other than Dissenting Shares held by PSBP shareholders, will be converted
into $19.59 (the net asset value per share of PSBP Common Stock based on an
independent appraisal of PSBP's properties) in cash or shares of PSI Common
Stock with an equivalent market value based on average closing prices on the New
York Stock Exchange of PSI Common Stock during the twenty consecutive trading
days ending on the fifth trading day prior to the special meeting of the
shareholders of PSBP.  We also have been advised that (i) cash distributions
will be made to the shareholders of PSBP prior to the consummation of the
Transaction to the extent required to cause PSBP's net asset value as of the
date of the Transaction to be substantially equivalent to the estimate of PSBP's
net asset value as of March 31, 1996 contained in the Joint Proxy Statement and
Prospectus filed with the Securities and Exchange Commission dated January 31,
1996, and (ii) if additional cash distributions are required to satisfy PSBP's
REIT distribution requirements for 1995 and are paid to PSBP shareholders prior
to the consummation of the Transaction, the Consideration would be reduced to
reflect such additional cash distributions.

     PSBP has formed a Special Committee of the Board of Directors to consider
certain matters relating to the Transaction, and the Special Committee has
requested that Robert A. Stanger & Co., Inc. ("Stanger") provide its opinion as
to the fairness to the public shareholders of PSBP, from a financial point of
view, of the Consideration to be received in the Transaction.

                                       1
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        


     In the course of our review to render this opinion, we have, among other
things:

     .  Reviewed the Joint Proxy Statement and Prospectus related to the
        Transaction and filed with the Securities and Exchange Commission on
        January 31, 1996;

     .  Reviewed PSBP's and PSI's annual reports to shareholders filed with the
        SEC on Form 10-K for the three fiscal years ending December 31, 1992,
        1993 and 1994, and PSBP's and PSI's quarterly reports filed with the SEC
        on Form 10-Q for the quarters ended March 31, 1995, June 30, 1995 and
        September 30, 1995, which reports PSBP's management and PSI's management
        have indicated to be the most current financial statements available;

     .  Reviewed the PSI pro forma financial statements and pro forma schedules
        prepared by PSBP's management and PSI's management;

     .  Reviewed the MAI-certified appraisal of the sole property owned by PSBP
        dated October 31, 1995 performed by Charles R. Wilson & Associates, Inc.
        (the "Appraisal"), and discussed with management of PSBP and the
        appraiser the methodologies and procedures employed in preparing the
        Appraisal;

     .  Reviewed internal financial analyses and forecasts prepared by PSBP, and
        based in part on the Appraisal, of the current net liquidation value per
        common share of PSBP's assets and projections of cash flow from
        operations, dividend distributions and going-concern values for PSBP;

     .  Discussed with members of senior management of PSBP and PSI conditions
        in business parks property markets and the local market of the property,
        conditions in the market for sales/acquisitions of properties similar to
        that owned by PSBP, current and projected operations and performance,
        financial condition and future prospects of PSBP and PSI;

     .  Reviewed historical market prices, trading volume and dividends for PSBP
        and PSI Common Stock; and

     .  Conducted other studies, analyses, inquiries and investigations as we
        deemed appropriate.

     In rendering this fairness opinion, we have relied upon and assumed,
without independent verification, the accuracy and completeness of all financial
and other information contained in the Joint Proxy Statement and Prospectus or
that was furnished or otherwise communicated to us by PSBP and PSI.  We have not
performed an independent appraisal of the assets and liabilities of PSBP or PSI
and have relied upon and assumed the accuracy of the appraisal performed by
Charles R. Wilson & Associates. We have also relied on the assurance of PSBP and
PSI that any pro forma financial statements, projections, budgets, or value
estimates

                                       2
<PAGE>
 
ROBERT A. STANGER & CO. INC.                                        


contained in the Joint Proxy Statement and Prospectus or otherwise provided to
us were reasonably prepared on bases consistent with actual historical
experience and reflecting the best currently available estimates and good faith
judgments; that no material changes have occurred in the appraised value of the
property or the information reviewed between the date of the Appraisal or the
date of the other information provided and the date of this letter; and that
PSBP and PSI are not aware of any information or facts that would cause the
information supplied to us to be incomplete or misleading in any material
respect.

     We have not been requested to, and therefore did not:  (i) select the
method of determining the Consideration offered in the Transaction; (ii) make
any recommendation to the shareholders of PSBP or PSI with respect to whether to
approve or reject the Transaction or whether to select the cash or Common Stock
option in the Transaction; or (iii) express any opinion as to the business
decision to effect the Transaction, alternatives to the Transaction, or tax
factors resulting from the merger of PSMI into PSI or relating to PSI's
continued qualification as a REIT.  Our opinion is based on business, economic,
real estate and securities markets, and other conditions as of the date of our
analysis and addresses the Transaction in the context of information available
as of the date of our analysis. Events occurring after that date may materially
affect the assumptions used in preparing the opinion.

     Based upon and subject to the foregoing, and in reliance thereon, it is our
opinion that as of the date of this letter the Consideration to be received in
the Transaction is fair to the public shareholders of PSBP, from a financial
point of view.

     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description. We have
advised the Board of Directors of PSBP that our entire analysis must be
considered as a whole and that selecting portions of our analysis and the
factors considered by us, without considering all analyses and facts, could
create an incomplete view of the evaluation process underlying this opinion.

Yours truly,

/s/ ROBERT A. STANGER & CO., INC.

Robert A. Stanger & Co., Inc.
Shrewsbury, NJ
January 31, 1996

                                       3
<PAGE>
                                                                      Appendix D
 
                     GENERAL CORPORATION LAW OF CALIFORNIA

                                   CHAPTER 13

                               DISSENTERS' RIGHTS



(S) 1300.  Right to Require Purchase -- "Dissenting Shares" and "Dissenting
           Shareholder" Defined.

           (a)  If the approval of the outstanding shares (Section 152) of a
corporation is required for a reorganization under subdivisions (a) and (b) or
subdivision (e) or (f) of Section 1201, each shareholder of the corporation
entitled to vote on the transaction and each shareholder of a subsidiary
corporation in a short-form merger may, by complying with this chapter, require
the corporation in which the shareholder holds shares to purchase for cash at
their fair market value of the shares owned by the shareholder which are
dissenting shares as defined in subdivision (b).  The fair market value shall be
determined as of the day before the first announcement of the terms of the
proposed reorganization or short-form merger, excluding any appreciation or
depreciation in consequence of the proposed action, but adjusted for any stock
split, reverse stock split or share dividend which becomes effective thereafter.

           (b)  As used in this chapter, "dissenting shares" means shares which
come within all of the following descriptions:

               (1)  Which were not immediately prior to the reorganization or
      short-form merger either (A) listed on any national securities exchange
      certified by the Commissioner of Corporations under subdivision (o) of
      Section 25100 or (B) listed on the list of OTC margin stocks issued by the
      Board of Governors of the Federal Reserve System, and the notice of
      meeting of shareholders to act upon the reorganization summarizes this
      section and Sections 1301, 1302, 1303 and 1304; provided, however, that
      this provision does not apply to any shares with respect to which there
      exists any restriction on transfer imposed by the corporation or by any
      law or regulation; and provided, further, that this provision does not
      apply to any class of shares described in subparagraph (A) or (B) if
      demands for payment are filed with respect to 5 percent or more of the
      outstanding shares of that class.

               (2)  Which were outstanding on the date for the determination of
      shareholders entitled to vote on the reorganization and (A) were not voted
      in favor of the reorganization or, (B) if described in subparagraph (A) or
      (B) of paragraph (1) (without regard to the provisos in that paragraph),
      were voted against the reorganization, or which were held of record on the
      effective date of a short-form merger; provided, however, that
      subparagraph (A) rather than subparagraph (B) of this paragraph applies in
      any case where the approval required by Section 1201 is sought by written
      consent rather than at a meeting.

               (3)  Which the dissenting shareholder has demanded that the
      corporation purchase at their fair market value, in accordance with
      Section 1301.

               (4)  Which the dissenting shareholder has submitted for
      endorsement, in accordance with Section 1302.

           (c)  As used in this chapter, "dissenting shareholder" means the
recordholder of dissenting shares and includes a transferee of record.

                                      D-1
<PAGE>
 
(S) 1301. Demand for Purchase.

           (a)  If, in the case of a reorganization, any shareholders of a
corporation have a right under Section 1300, subject to compliance with
paragraphs (3) and (4) of subdivision (b) thereof, to require the corporation to
purchase their shares for cash, such corporation shall mail to each such
shareholder a notice of the approval of the reorganization by its outstanding
shares (Section 152) within 10 days after the date of such approval, accompanied
by a copy of Sections 1300, 1302, 1303, 1304 and this section, a statement of
the price determined by the corporation to represent the fair market value of
the dissenting shares, and a brief description of the procedure to be followed
if the shareholder desires to exercise the shareholder's right under such
sections.  The statement of price constitutes an offer by the corporation to
purchase at the price stated any dissenting shares as defined in subdivision (b)
of Section 1300, unless they lose their status as dissenting shares under
Section 1309.

           (b)  Any shareholder who has a right to require the corporation to
purchase the shareholder's shares for cash under Section 1300, subject to
compliance with paragraphs (3) and (4) of subdivision (b) thereof, and who
desires the corporation to purchase such shares shall make written demand upon
the corporation for the purchase of such shares and payment to the shareholder
in cash of their fair market value.  The demand is not effective for any purpose
unless it is received by the corporation or any transfer agent thereof (1) in
the case of shares described in clause (i) or (ii) of paragraph (1) of
subdivision (b) of Section 1300 (without regard to the provisos in that
paragraph), not later than the date of the shareholders' meeting to vote upon
the reorganization, or (2) in any other case within 30 days after the date on
which the notice of the approval by the outstanding shares pursuant to
subdivision (a) or the notice pursuant to subdivision (i) of Section 1110 was
mailed to the shareholder.

           (c) The demand shall state the number and class of the shares held of
record by the shareholder which the shareholder demands that the corporation
purchase and shall contain a statement of what such shareholder claims to be the
fair market value of those shares as of the day before the announcement of the
proposed reorganization or short-form merger. The statement of fair market value
constitutes an offer by the shareholder to sell the shares at such price.

(S) 1302. Endorsement of Shares.

           Within 30 days after the date on which notice of the approval by the
outstanding shares or the notice pursuant to subdivision (i) of Section 1110 was
mailed to the shareholder, the shareholder shall submit to the corporation at
its principal office or at the office of any transfer agent thereof, (a) if the
shares are certificated securities, the shareholder's certificates representing
any shares which the shareholder demands that the corporation purchase, to be
stamped or endorsed with a statement that the shares are dissenting shares or to
be exchanged for certificates of appropriate denomination so stamped or endorsed
or (b) if the shares are uncertificated securities, written notice of the number
of shares which the shareholder demands that the corporation purchase.  Upon
subsequent transfers of the dissenting shares on the books of the corporation,
the new certificates, initial transaction statement, and other written
statements issued therefor shall bear a like statement, together with the name
of the original dissenting holder of the shares.

(S) 1303. Agreed Price -- Time for Payment.

           (a)  If the corporation and the shareholder agree that the shares are
dissenting shares and agree upon the price of the shares, the dissenting
shareholder is entitled to the agreed price with interest thereon at the legal
rate on judgments from the date of the agreement.  Any agreements fixing the
fair market value of any dissenting shares as between the corporation and the
holders thereof shall be filed with the secretary of the corporation.

                                      D-2
<PAGE>
 
           (b)  Subject to the provisions of Section 1306, payment of the fair
market value of dissenting shares shall be made within 30 days after the amount
thereof has been agreed or within 30 days after any statutory or contractual
conditions to the reorganization are satisfied, whichever is later, and in the
case of certificated securities, subject to surrender of the certificates
therefor, unless provided otherwise by agreement.

(S) 1304. Dissenter's Action to Enforce Payment.

           (a)  If the corporation denies that the shares are dissenting shares,
or the corporation and the shareholder fail to agree upon the fair market value
of the shares, then the shareholder demanding purchase of such shares as
dissenting shares or any interested corporation, within six months after the
date on which notice of the approval by the outstanding shares (Section 152) or
notice pursuant to subdivision (i) of Section 1110 was mailed to the
shareholder, but not thereafter, may file a complaint in the superior court of
the proper county praying the court to determine whether the shares are
dissenting shares or the fair market value of the dissenting shares or both or
may intervene in any action pending on such a complaint.

           (b)  Two or more dissenting shareholders may join as plaintiffs or be
joined as defendants in any such action and two or more such actions may be
consolidated.

           (c)  On the trial of the action, the court shall determine the
issues. If the status of the shares as dissenting shares is in issue, the court
shall first determine that issue. If the fair market value of the dissenting
shares is in issue, the court shall determine, or shall appoint one or more
impartial appraisers to determine, the fair market value of the shares.

(S) 1305. Appraisers' Report -- Payment Costs.

           (a)  If the court appoints an appraiser or appraisers, they shall
proceed forthwith to determine the fair market value per share.  Within the time
fixed by the court, the appraisers, or  a majority of them, shall make and file
a report in the office of the clerk of the court.  Thereupon, on the motion of
any party, the report shall be submitted to the court and considered on such
evidence as the court considers relevant.  If the court finds the report
reasonable, the court may confirm it.

           (b)  If a majority of the appraisers appointed fail to make and file
a report within 10 days from the date of their appointment or within such
further time as may be allowed by the court or the report is not confirmed by
the court, the court shall determine the fair market value of the dissenting
shares.

           (c)  Subject to the provisions of Section 1306, judgment shall be
rendered against the corporation for payment of an amount equal to the fair
market value of each dissenting share multiplied by the number of dissenting
shares which any dissenting shareholder who is a party, or who has intervened,
is entitled to require the corporation to purchase, with interest thereon at the
legal rate from the date on which judgment was entered.

           (d)  Any such judgment shall be payable forthwith with respect to
uncertificated securities and, with respect to certificated securities, only
upon the endorsement and delivery to the corporation of the certificates for the
shares described in the judgment.  Any party may appeal from the judgment.

           (e)  The costs of the action, including reasonable compensation to
the appraisers to be fixed by the court, shall be assessed or apportioned as the
court considers equitable, but, if the appraisal exceeds the price offered by
the corporation, the corporation shall pay the costs (including in the
discretion of the court attorneys' fees, fees of expert witnesses and interest
at the legal rate on judgments from the date of compliance with Sections 1300,
1301 and 1302 if the value awarded by

                                      D-3
<PAGE>
 
the court for the shares is more than 125 percent of the price offered by the
corporation under subdivision (a) of Section 1301).

(S) 1306. Dissenting Shareholder's Status as Creditor.

           To the extent that the provisions of Chapter 5 prevent the payment to
any holders of dissenting shares of their fair market value, they shall become
creditors of the corporation for the amount thereof together with interest at
the legal rate on judgments until the date of payment, but subordinate to all
other creditors in any liquidation proceeding, such debt to be payable when
permissible under the provisions of Chapter 5.

(S) 1307. Dividends Paid as Credit Against Payment.

           Cash dividends declared and paid by the corporation upon the
dissenting shares after the date of approval of the reorganization by the
outstanding shares (Section 152) and prior to payment for the shares by the
corporation shall be credited against the total amount to be paid by the
corporation therefor.

(S) 1308. Continuing Rights and Privileges of Dissenting Shareholders.

           Except as expressly limited in this chapter, holders of dissenting
shares continue to have all the rights and privileges incident to their shares,
until the fair market value of their shares is agreed upon or determined.  A
dissenting shareholder may not withdraw a demand for payment unless the
corporation consents thereto.

(S) 1309. Termination of Dissenting Shareholder Status.

           Dissenting shares lose their status as dissenting shares and the
holders thereof cease to be dissenting shareholders and cease to be entitled to
require the corporation to purchase their shares upon the happening of any of
the following:

           (a)  The corporation abandons the reorganization. Upon abandonment of
the reorganization, the corporation shall pay on demand to any dissenting
shareholder who has initiated proceedings in good faith under this chapter all
necessary expenses incurred in such proceedings and reasonable attorneys' fees.

           (b)  The shares are transferred prior to their submission for
endorsement in accordance with Section 1302 or are surrendered for conversion
into shares of another class in accordance with the articles.

           (c)  The dissenting shareholder and the corporation do not agree upon
the status of the shares as dissenting shares or upon the purchase price of the
shares, and neither files a complaint or intervenes in a pending action as
provided in Section 1304, within six months after the date on which notice of
the approval by the outstanding shares or notice pursuant to subdivision (i) of
Section 1110 was mailed to the shareholder.

           (d)  The dissenting shareholder, with the consent of the corporation,
withdraws the shareholder's demand for purchase of the dissenting shares.

(S) 1310. Suspension of Proceedings for Payment Pending Litigation.

           If litigation is instituted to test the sufficiency or regularity of
the votes of the shareholders in authorizing a reorganization, any proceedings
under Sections 1304 and 1305 shall be suspended until final determination of
such litigation.

                                      D-4
<PAGE>
 
(S) 1311. Exempt Shares.

           This chapter, except Section 1312, does not apply to classes of
shares whose terms and provisions specifically set forth the amount to be paid
in respect to such shares in the event of a reorganization or merger.

(S) 1312. Attacking Validity of Reorganization or Merger.

           (a)  No shareholder of a corporation who has a right under this
chapter to demand payment of cash for the shares held by the shareholder shall
have any right at law or in equity to attack the validity of the reorganization
or short-form merger, or to have the reorganization or short-form merger set
aside or rescinded, except in an action to test whether the number of shares
required to authorize or approve the reorganization have been legally voted in
favor thereof; but any holder of shares of a class whose terms and provisions
specifically set forth the amount to be paid in respect to them in the event of
a reorganization or short-form merger is entitled to payment in accordance with
those terms and provisions or, if the principal terms of the reorganization are
approved pursuant to subdivision (b) of Section 1202, is entitled to payment in
accordance with the terms and provisions of the approved reorganization.

           (b)  If one of the parties to a reorganization or short-form merger
is directly or indirectly controlled by, or under common control with, another
party to the reorganization or short-form merger, subdivision (a) shall not
apply to any shareholder of such party who has not demanded payment of cash for
such shareholder's shares pursuant to this chapter; but if the shareholder
institutes any action to attack the validity of the reorganization or short-form
merger or to have the reorganization set aside or rescinded, the shareholder
shall not thereafter have any right to demand payment of cash for the
shareholder's shares pursuant to this chapter. The court in any action attacking
the validity of the reorganization or short-form merger or to have the
reorganization or short-form merger set aside or rescinded shall not restrain or
enjoin the consummation of the transaction except upon 10-days prior notice to
the corporation and upon a determination by the court that clearly no other
remedy will adequately protect the complaining shareholder or the class of
shareholders of which such shareholder is a member.

            (c)  If one of the parties to a reorganization or short-form merger
is directly or indirectly controlled by, or under common control with, another
party to the reorganization or short-form merger, in any action to attack the
validity of the reorganization or short-form merger or to have the
reorganization or short-form merger set aside or rescinded, (1) a party to a
reorganization or short-form merger which controls another party to the
reorganization or short-form merger shall have the burden of proving that the
transaction is just and reasonable as to the shareholders of the controlled
party, and (2) a person who controls two or more parties to a reorganization
shall have the burden of proving that the transaction is just and reasonable as
to the shareholders of any party so controlled.

                                      D-5
<PAGE>
 
                                                                    Appendix E-1



                      Proposed Amendment to PSP9's Bylaws



  Add a new subsection (f) to Article IX, Section 8 of the Bylaws of PSP9 so
that Section 8 would read in its entirety as follows:

      Section 8.  Restrictions on Transactions with Affiliates.
                  -------------------------------------------- 

          (a)     The corporation shall not purchase or lease property in which
  PSI or any of its affiliates have an interest. The provisions of this Section
  8(a) notwithstanding, PSI or its affiliates may purchase property in their own
  name and temporarily hold title thereto for the purpose of facilitating the
  acquisition of such property, for the corporation, provided that such property
  is purchased by the corporation for a price no greater than the cost of such
  property to PSI or its affiliates, including development costs actually
  incurred by PSI or its affiliates.

          (b)     The corporation shall not sell or lease property to PSI or its
  affiliates, except that the corporation may lease space to PSI or its
  affiliates for their use, provided that (i) the terms of any such lease are
  competitive with those contained in leases with persons who are not affiliated
  with PSI or its affiliates, (ii) the aggregate amount of space rented pursuant
  to such leases does not exceed 2% of the aggregate net rentable area of the
  corporation's properties and (iii) neither PSI nor its affiliates receive any
  property management fees in connection with such leases.

          (c)     No loans may be made by the corporation to PSI or any of its
  affiliates.

          (d)     Except as permitted by Section 8(a) of this Article IX, the
  corporation shall not acquire property from any of the following persons or
  entities in which PSI or any of its affiliates has an interest:  a limited or
  general partnership, joint venture, unincorporated association or similar
  organization other than a corporation formed and operated for the primary
  purpose of investment in and the operation of or gain from an interest or
  interests in real property.

          (e)     The compensation paid to the General Partners or their
  affiliates for insurance services, property management services and real
  estate brokerage services shall be competitive in price and terms with persons
  who are not affiliated with the General Partners or their affiliates rendering
  comparable services which could reasonably be made available to the
  corporation.

          (f)     Notwithstanding anything in the Bylaws to the contrary, the
  corporation may merge with Public Storage, Inc. or a subsidiary, provided that
  such merger is approved by the vote or written consent of holders of a
  majority of the outstanding shares of the corporation entitled to vote.
<PAGE>
 
                                                                    Appendix E-2



                      Proposed Amendment to PSBP's Bylaws



  Add a new subsection (f) to Article IX, Section 8 of the Bylaws of PSBP so
that Section 8 would read in its entirety as follows:

      Section 8.  Restrictions on Transactions with Affiliates.
                  -------------------------------------------- 

          (a)     The corporation shall not purchase or lease property in which
  PSI or any of its affiliates have an interest. The provisions of this Section
  8(a) notwithstanding, PSI or its affiliates may purchase property in their own
  name and temporarily hold title thereto for the purpose of facilitating the
  acquisition of such property, for the corporation, provided that such property
  is purchased by the corporation for a price no greater than the cost of such
  property to PSI or its affiliates, including development costs actually
  incurred by PSI or its affiliates.

          (b)     The corporation shall not sell or lease property to PSI or its
  affiliates, except that the corporation may lease space to PSI or its
  affiliates for their use, provided that (i) the terms of any such lease are
  competitive with those contained in leases with persons who are not affiliated
  with PSI or its affiliates, (ii) the aggregate amount of space rented pursuant
  to such leases does not exceed 2% of the aggregate net rentable area of the
  corporation's properties and (iii) neither PSI nor its affiliates receive any
  property management fees in connection with such leases.

          (c)     No loans may be made by the corporation to PSI or any of its
  affiliates.

          (d)     Except as permitted by Section 8(a) of this Article IX, the
  corporation shall not acquire property from any of the following persons or
  entities in which PSI or any of its affiliates has an interest:  a limited or
  general partnership, joint venture, unincorporated association or similar
  organization other than a corporation formed and operated for the primary
  purpose of investment in and the operation of or gain from an interest or
  interests in real property.

          (e)     The compensation paid to the General Partners or their
  affiliates for insurance services, property management services and real
  estate brokerage services shall be competitive in price and terms with persons
  who are not affiliated with the General Partners or their affiliates rendering
  comparable services which could reasonably be made available to the
  corporation.

          (f)     Notwithstanding anything in the Bylaws to the contrary, the
  corporation may merge with Public Storage, Inc. or a subsidiary, provided that
  such merger is approved by the vote or written consent of holders of a
  majority of the outstanding shares of the corporation entitled to vote.
<PAGE>
 
                                                                      Appendix F

                       PUBLIC STORAGE PROPERTIES IX, INC.
                              FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
 
                                                                         Page
                                                                       Reference
                                                                       ---------
<S>                                                                    <C>
Report of independent auditors                                             F-1
 
Balance sheets at December 31, 1994 and 1993                               F-2
 
For the years ended December 31, 1994, 1993 and 1992:
 
   Statements of income                                                    F-3
 
   Statements of shareholders' equity                                      F-4
 
   Statements of cash flows                                                F-5
 
Notes to financial statements                                              F-6
 
Condensed balance sheets at September 30, 1995 and December 31, 1994       F-12
 
Condensed statements of income for the three
and nine months ended September 30, 1995 and 1994                          F-13
 
Condensed statement of shareholders' equity for the
nine months ended September 30, 1995                                       F-14
 
Condensed statements of cash flows for the
nine months ended September 30, 1995 and 1994                              F-15
 
Notes to condensed financial statements                                    F-16
 
</TABLE>
<PAGE>
 
                         Report of Independent Auditors



The Board of Directors and Shareholders
Public Storage Properties IX, Inc.


We have audited the accompanying balance sheets of Public Storage Properties IX,
Inc. as of December 31, 1994 and 1993, and the related statements of income,
shareholders' equity and cash flows for each of the three years in the period
ended December 31, 1994.  These financial statements are the responsibility of
the Company's management.  Our responsibility is to express an opinion on these
financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Public Storage Properties IX,
Inc. at December 31, 1994 and 1993, and the results of its operations and its
cash flows for each of the three years in the period ended December 31, 1994, in
conformity with generally accepted accounting principles.



                                            ERNST & YOUNG LLP


February 24, 1995

                                      F-1
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                                 BALANCE SHEETS
                           December 31, 1994 and 1993

<TABLE> 
<CAPTION> 
                                                   1994          1993
                                               -----------   -----------
                                     ASSETS
                                     ------
<S>                                            <C>           <C>
Cash and cash equivalents                      $ 1,032,000   $   473,000
Rent and other receivables                          41,000        22,000
Prepaid expenses                                    88,000        86,000
 
Real estate facilities at cost:
  Building, land improvements and equipment     23,026,000    22,899,000
  Land                                          12,695,000    12,695,000
                                               -----------   -----------
                                                35,721,000    35,594,000
 
  Less accumulated depreciation                 (9,582,000)   (8,677,000)
                                               -----------   -----------
                                                26,139,000    26,917,000
                                               -----------   -----------
 
     Total assets                              $27,300,000   $27,498,000
                                               ===========   ===========
 
<CAPTION> 
                      LIABILITIES AND SHAREHOLDERS' EQUITY
                      ------------------------------------
 
<S>                                           <C>            <C>
Accounts payable                              $    506,000   $   495,000
Dividends payable                                  771,000       803,000
Advance payments from renters                      235,000       262,000
Note payable                                     1,050,000             -
                                                              
Shareholders' equity:                                         
  Series A common, $.01 par value,                            
     2,896,094 shares authorized,                             
     1,787,200 shares issued and                              
     outstanding (1,869,300 shares                            
     issued and outstanding in 1993)                18,000        19,000
  Convertible Series B common,                                
     $.01 par value, 188,845 shares                           
     authorized, issued and outstanding              2,000         2,000
  Convertible Series C common,                                
     $.01 par value, 535,061 shares                           
     authorized, issued and                                   
     outstanding                                     5,000         5,000
 
  Paid-in-capital                               31,713,000    33,176,000
  Cumulative income                             31,297,000    27,909,000
  Cumulative distributions                     (38,297,000)  (35,173,000)
                                              ------------   -----------
 
  Total shareholders' equity                    24,738,000    25,938,000
                                              ------------   -----------
 
Total liabilities and shareholders' equity    $ 27,300,000   $27,498,000
                                              ============   ===========
</TABLE>

                            See accompanying notes.

                                      F-2
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX INC.
                              STATEMENTS OF INCOME
                       For each of the three years in the
                         period ended December 31, 1994
<TABLE>
<CAPTION>
 
                                               1994        1993        1992
                                            ----------  ----------  -----------
<S>                                         <C>         <C>         <C>
REVENUES:
 
Rental income                               $7,045,000  $6,816,000  $6,685,000
Interest income                                 23,000      14,000      52,000
                                            ----------  ----------  ----------
 
                                             7,068,000   6,830,000   6,737,000
                                            ----------  ----------  ----------
 
 
COSTS AND EXPENSES:
 
Cost of operations                           2,024,000   1,942,000   2,012,000
Management fees paid to affiliates             416,000     398,000     393,000
Depreciation and amortization                  938,000     951,000     984,000
Administrative                                 207,000     231,000     258,000
Reorganization cost                                  -           -    (117,000)
Interest expense                                95,000           -           -
                                            ----------  ----------  ----------
 
                                             3,680,000   3,522,000   3,530,000
                                            ----------  ----------  ----------
 
Income before gain on sale of real estate    3,388,000   3,308,000   3,207,000
Gain on sale of real estate                          -     237,000   1,729,000
                                            ----------  ----------  ----------
 
NET INCOME                                  $3,388,000  $3,545,000  $4,936,000
                                            ==========  ==========  ==========
 
Primary earnings per share-Series A
 
 Income before gain on sale of real estate  $     1.70  $     1.57  $     1.41
 Gain on sale of real estate                         -         .12        0.83
                                            ----------  ----------  ----------
 Net income                                 $     1.70  $     1.69  $     2.24
                                            ==========  ==========  ==========
 
Fully diluted earnings per share-Series A
 
 Income before gain on sale of real estate  $     1.33  $     1.24  $     1.14
 Gain on sale of real estate                         -        0.09        0.62
                                            ----------  ----------  ----------
 Net income                                 $     1.33  $     1.33  $     1.76
                                            ==========  ==========  ==========
 
Dividends declared per share:
    Series A                                $     1.56  $     1.56  $     2.51
                                            ==========  ==========  ==========
    Series B                                $     1.56  $     1.44  $     1.56
                                            ==========  ==========  ==========
    Series C                                         -           -           -
                                            ==========  ==========  ==========
 
Weighted average Common shares
 outstanding:
    Primary Series A                         1,820,592   1,934,501   2,075,021
                                            ==========  ==========  ==========
    Fully diluted-Series A                   2,544,498   2,658,407   2,799,027
                                            ==========  ==========  ==========
</TABLE>

                            See accompanying notes.

                                      F-3
<PAGE>

<TABLE> 
<CAPTION> 
 
                                                PUBLIC STORAGE PROPERTIES IX, INC.
                                                STATEMENTS OF SHAREHOLDERS' EQUITY
                                          For each of the three years in the period ended
                                                         December 31, 1994

                                                     Convertible   Convertible                 Cumulative                 Total
                                    Series A          Series B      Series C       Paid-in         net     Cumulative  shareholder's
                                Shares    Amount   Shares  Amount Shares Amount    Capital       Income  distributions    equity
                              ------------------- --------------- --------------- ---------  -----------  ------------  -----------
<S>                            <C>        <C>      <C>     <C>    <C>     <C>    <C>          <C>         <C>           <C>   
Balances at December 31, 1991  2,117,117  $21,000  188,845 $2,000 535,061 $5,000 $37,224,000  $19,428,000 ($26,412,000) $30,268,000

Net Income                                                                                      4,936,000                 4,936,000
Repurchase of shares            (119,683)  (1,000)                                (1,780,000)                            (1,781,000)

Cash distribution declared:
  $2.51 per share-Series A                                                                                  (5,188,000)  (5,188,000)
  $1.56 per share-Series B                                                                                    (295,000)    (295,000)
                               -------------------------------------------------------------  --------------------------------------

Balances at December 31, 1992  1,997,234   20,000  188,845  2,000 535,061  5,000  35,444,000   24,364,000  (31,895,000)  27,940,000


Net Income                                                                                      3,545,000                 3,545,000
Repurchase of shares            (127,934)  (1,000)                                (2,268,000)                            (2,269,000)

Cash distribution declared:
  $1.56 per share-Series A                                                                                  (3,006,000)  (3,006,000)
  $1.44 per share-Series B                                                                                    (272,000)    (272,000)
                               -------------------------------------------------------------  --------------------------------------
Balances at December 31, 1993  1,669,300   19,000  188,845  2,000 535,061  5,000  33,176,000   27,909,000  (35,173,000)  25,938,000

Net Income                                                                                      3,388,000                 3,388,000
Repurchase of shares             (82,100)  (1,000)                                (1,463,000)                            (1,464,000)

Cash distribution declared:
  $1.56 per share-Series A                                                                                  (2,829,000)  (2,829,000)
  $1.56 per share-Series B                                                                                    (295,000)    (295,000)
                               -------------------------------------------------------------  --------------------------------------
Balances at December 31, 1994  1,787,200  $18,000  188,845 $2,000 535,061 $5,000 $31,713,000  $31,297,000 ($38,297,000) $24,738,000
                              ==============================================================  ======================================

</TABLE> 
                            See Accompanying Notes.

                                     F - 5

<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                            STATEMENTS OF CASH FLOWS
                       For each of the three years in the
                         period ended December 31, 1994
<TABLE>
<CAPTION>
 
 
                                            1994           1993           1992
                                        ------------  --------------  ------------
<S>                                     <C>           <C>             <C>
 
Cash flows from operating activities:
 
    Net income                          $ 3,388,000     $ 3,545,000   $ 4,936,000
 
    Adjustments to reconcile net
          income to net cash provided
          by operating activities:
      Gain on sale of real estate
       facility                                   -        (237,000)   (1,729,000)
      Depreciation and amortization         938,000         951,000       984,000
      (Increase) decrease in rent and
         other receivables                  (19,000)        (22,000)      100,000
      Increase in prepaid expenses           (2,000)        (55,000)      (42,000)
      Increase (decrease) in accounts
       payable                               11,000         (89,000)     (161,000)
      (Decrease) increase in advance
         payments from renters              (27,000)         (2,000)       12,000
                                        -----------     -----------   -----------
 
          Total adjustments                 901,000         546,000      (836,000)
                                        -----------     -----------   -----------
 
          Net cash provided
             by operating activities      4,289,000       4,091,000     4,100,000
                                        -----------     -----------   -----------
 
Cash flows from investing activities:
 
    Proceeds from sale of real estate
     facility                                     -         237,000     3,700,000
    Additions to real estate
     facilities                            (160,000)       (139,000)     (179,000)
                                        -----------     -----------   -----------
 
          Net cash (used in) provided
           by investing activities         (160,000)         98,000     3,521,000
                                        -----------     -----------   -----------
 
Cash flows from financing activities:
 
    Distributions paid to shareholders   (3,156,000)     (3,328,000)   (5,534,000)
    Proceeds from note payable to Bank    1,050,000               -             -
    Purchase of Company Series A
       common stock                      (1,464,000)     (2,269,000)   (1,781,000)
                                        -----------     -----------   -----------
 
          Net cash used in
             financing activities        (3,570,000)     (5,597,000)   (7,315,000)
                                        -----------     -----------   -----------
 
Net increase (decrease) in
  cash and cash equivalents                 559,000      (1,408,000)      306,000
 
Cash and cash equivalents at
  the beginning of the year                 473,000       1,881,000     1,575,000
                                        -----------     -----------   -----------
 
Cash and cash equivalents at
  the end of the year                   $ 1,032,000     $   473,000   $ 1,881,000
                                        ===========     ===========   ===========
 
</TABLE>

                            See accompanying notes.

                                      F-6
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                         NOTES TO FINANCIAL STATEMENTS
                               December 31, 1994

1. Description of Business

        Public Storage Properties IX, Inc.. (the "Company") is a California
   corporation which has elected to qualify as a real estate investment trust
   ("REIT") for Federal income tax purposes.  The Company  succeeded to the
   business of Public Storage Properties IX, Ltd. (the "Partnership") in a
   reorganization transaction which was effective December 31, 1990 (the
   "Reorganization").

        The Company owns and operates primarily self-storage facilities and, to
   a lesser extent, business park facilities containing commercial or industrial
   spaces.

        The term of the Company is until all properties have been sold and, in
   any event, not later than December 31, 2038.  The bylaws of the Company
   provide that, during 1996, unless shareholders have previously approved such
   a proposal, the shareholders will be presented with a proposal to approve or
   disapprove (a) the sale or financing of all or substantially all of the
   properties and (b) the distribution of the proceeds from such transaction
   and, in the case of a sale, the liquidation of the Company.

2. Summary of Significant Accounting Policies

   Income Taxes:

        The Company has and intends to continue to qualify as a REIT, as defined
   in Section 856 of the Internal Revenue Code (the Code).  As a REIT, the
   Company is not taxed on that portion of its taxable income which is
   distributed to its shareholders provided that the Company meets the
   requirements of the Code. The Company believes it is in compliance with these
   requirements and, accordingly, no provision for income taxes has been made.

   Statements of Cash Flows:

        For purposes of financial statement presentation, the Company considers
   all highly liquid debt instruments purchased with a maturity of three months
   or less to be cash equivalents.

        The Company paid $95,000 in interest costs during 1994.

   Real Estate Facilities:

        Cost of land includes appraisal and legal fees related to acquisition
   and closing costs.  Buildings, land improvements and equipment reflect costs
   incurred through December 31, 1994 and 1993 to develop primarily mini-
   warehouse facilities and to a lesser extent, business park facilities.  The
   mini-warehouse facilities provide self-service storage spaces for lease,
   usually on a month-to-month basis, to the general public.  The buildings and
   equipment are depreciated on the straight-line basis over estimated useful
   lives of 25 and 5 years, respectively.

        In July 1992, the Company sold a property to the State of California
   under a condemnation proceeding.  The Company received $3,700,000 and
   $237,000 in 1992 and 1993, respectively.  In 1992, the Company recognized a
   gain of $1,729,000 on the sale.  In 1993, the Company received an additional
   $237,000 in sales proceeds as a final settlement on the sales price of the
   facility.  The entire amount was recognized as a gain on sale of real estate.
   Pursuant to the Company's By-laws, the Company's Common Stock Series B shares
   are not entitled to participate in distributions attributable to sale or
   financing proceeds.  As a result, the Company paid special dividends in 1992
   and 1993 of $0.95 and $0.12, respectively, per Series A share, for total
   distributions of $1,970,000 and $237,000.

                                      F-7
<PAGE>
 
2. Summary of Significant Accounting Policies (continued)

        At December 31, 1994, the basis of real estate facilities (excluding
   land) for Federal income tax purposes (after adjustment for accumulated
   depreciation of $14,691,000) is $7,294,000.


   Revenue Recognition:

        Property rents are recognized as earned.


   Net Income Per Share:

    Net income per share is based on net income attributable to each series of
  common shares and the weighted average number of such shares outstanding
  during the periods presented.

    Net income per share is presented on a primary and fully diluted basis.
  Primary earnings per share represents the Series A shareholders' right to
  distributions out of the respective period's net income, which is calculated
  by dividing net income after reduction for distributions to the Convertible
  Series B shareholders (Convertible Series C shareholders are not entitled to
  cash distributions) by the weighted average number of Series A shares (Note
  4).  Fully diluted earnings per share assumes conversion of the Convertible
  Series B and Series C shares into Series A shares.


3. Related Party Transactions

        The Company has Management Agreements with Public Storage Management,
   Inc. (PSMI) and Public Storage Commercial Properties Group, Inc. (PSCPG),
   subsidiaries of Public Storage, Inc. (PSI) a wholly-owned subsidiary of PSI
   Holdings, Inc. (PSIH).  Under the terms of the agreements, PSMI operates
   mini-warehouse facilities and PSCPG operates the business park facilities for
   fees equal to 6% and 5%, respectively, of the facilities' monthly gross
   revenue (as defined).

        The Management Agreement provides that the agreement will expire in
   February 2002 provided that in February of each year, commencing February
   21,1996, it shall be automatically extended for one year (thereby maintaining
   a seven-year term) unless either party notifies the other that the Management
   Agreement is not being extended, in which case it expires on the first
   anniversary of its then scheduled expiration date.  The Management Agreement
   may also be terminated by either party for cause, but if terminated for cause
   by the Company, the Company retains the rights to use the service marks and
   related designs until the then scheduled expiration date, if applicable, or
   otherwise a date seven years after such termination.

                                      F-8
<PAGE>
 
4. Shareholders' Equity

        Series A shares are entitled to all distributions of cash from sale or
   refinancing  and participate ratably with the Convertible Series B shares in
   distributions of cash flow from operations.  The Convertible Series C shares
   (prior to conversion into Series A shares) will not participate in any
   distributions.

        The Convertible Series B shares and Convertible Series C shares will
   convert automatically into Series A shares on a share-for-share basis (the
   "Conversion") when (A) the sum of (1) all cumulative dividends and other
   distributions from all sources paid with respect to the Series A shares
   (including liquidating distributions, but not including payments made to
   redeem such stock other than in liquidation) and (2) the cumulative
   Partnership distributions from all sources with respect to all units equals
   (B) the product of $20 multiplied by the number of the then outstanding
   "Original Series A shares" ("Total Capital Return").  The term "Original
   Series A shares" means the Series A shares issued in the Reorganization.
   Through December 31, 1994, the Company has made and declared cumulative cash
   distributions of approximately $35,319,000 with respect to the Series A
   shares.  Accordingly, assuming no repurchases or redemptions of Series A
   shares, the Conversion would occur when $425,000 in additional distributions
   with respect to the Series A shares have been made.

        Assuming liquidation of the Company at its net book value at December
   31, 1994 and 1993, each Series  of common shares would receive the following
   as a liquidating distribution:
<TABLE>
<CAPTION>
                                   1994         1993
                                -----------  -----------
        <S>                     <C>          <C>
 
        Series A                $18,328,000  $20,665,000
        Convertible Series B      1,672,000    1,376,000
        Convertible Series C      4,738,000    3,897,000
                                -----------  -----------
 
        Total                   $24,738,000  $25,938,000
                                ===========  ===========
</TABLE>

        The Series B and Series C shareholders have agreed that they will not be
   entitled to the first $599,000 of distributions from the Company in respect
   of the Series A shares received upon conversion of the Convertible Series B
   and Convertible Series C shares attributable to sale or financing proceeds.
   This agreement, which is binding on transferees of such Series A shares, is
   reflected in the liquidation values applicable to the Series A and
   Convertible Series B and C shares.

        The Series A shares, Convertible Series B shares and Convertible Series
   C shares have equal voting rights.  Until the Conversion, the holders of the
   Convertible Series B and Convertible Series C shares have agreed to vote
   along with the majority of the unaffiliated Series A shareholders on matters
   other than control of the Company and its business.

        The Company's Board of Directors has authorized the Company to purchase
   up to 500,000 shares of the Company's Series A common stock. As of December
   31, 1994, the Company had purchased and retired 384,517 shares of Series A
   common stock, of which 82,100 and 127,934 were purchased and retired in 1994
   and 1993, respectively.

        In February 1995, Total Capital Return was achieved, and as a result the
   Series B and C shares were converted into Series A shares on a share-for-
   share basis.

   For Federal income tax purposes, distributions declared by the Board of
   Directors in 1994, 1993 and 1992 were as follows:
<TABLE>
<CAPTION>
                           1994        1993        1992
                        ----------  ----------  ----------
   <S>                  <C>         <C>         <C>
 
   Ordinary income      $3,124,000  $3,091,000  $2,786,000
   Return of Capital             -           -     537,000
   Capital gains                 -     187,000   2,160,000
                        ----------  ----------  ----------
 
   Total                $3,124,000  $3,278,000  $5,483,000
                        ==========  ==========  ==========
</TABLE>

                                      F-9
<PAGE>
 
5. Note Payable to Bank

   In December 1993, the Company obtained an unsecured revolving credit
   facility from a commercial bank for borrowings up to $2,000,000 for working
   capital purposes.  Outstanding borrowings on the revolving credit facility
   bore interest at the bank's prime rate plus one and one-half percent through
   September 30, 1994.  In September, 1994, the Company renegotiated its credit
   facility to reduce the interest rate from prime plus one and one-half percent
   to prime and eliminate the amortization requirement of loan principal.  The
   credit facility matures on December 31, 1996 at which time all unpaid
   principal and accrued interest is due.  As of December 31, 1994, the Company
   had borrowed $1,050,000 against the credit facility.

6. Subsequent Event

        On January 11, 1995, the Company borrowed $100,000 against the credit
   facility.

7. Quarterly results (unaudited)

   The following is a summary of unaudited quarterly results of operations:
<TABLE>
<CAPTION>
 
                                            Three months ended
                              ----------------------------------------------
                              March 1994  June 1994   Sept 1994   Dec. 1994
                              ----------  ----------  ----------  ----------
<S>                           <C>         <C>         <C>         <C>
 
 Revenues                     $1,728,000  $1,770,000  $1,811,000  $1,759,000
                              ----------  ----------  ----------  ----------
 
 Expenses                        924,000     893,000     924,000     939,000
                              ----------  ----------  ----------  ----------
 
 Net income                   $  804,000  $  877,000  $  887,000  $  820,000
                              ==========  ==========  ==========  ==========
 
 Earnings per share:
 
 Primary - Series A           $     0.39  $     0.45  $     0.45  $     0.42
                              ==========  ==========  ==========  ==========
 
 Fully Diluted - Series A     $     0.31  $     0.34  $     0.35  $     0.32
                              ==========  ==========  ==========  ==========
 
</TABLE>

                                      F-10
<PAGE>
 
 7.   Quarterly results (unaudited) (continued):
<TABLE>
<CAPTION>
 
                                                Three months ended
                                  ----------------------------------------------
                                  March 1993  June 1993   Sept 1993   Dec. 1993
                                  ----------  ----------  ----------  ----------
<S>                               <C>         <C>         <C>         <C>
 
 Revenues                         $1,620,000  $1,703,000  $1,766,000  $1,741,000
                                  ----------  ----------  ----------  ----------
 
 Expenses                            903,000     851,000     887,000     881,000
                                  ----------  ----------  ----------  ----------
 
 Income before gain on sale
 of real estate                      717,000     852,000     879,000     860,000
 
 Gain on sale of real estate               -           -     237,000           -
                                  ----------  ----------  ----------  ----------
 
 Net Income                       $  717,000  $  852,000  $1,116,000  $  860,000
                                  ==========  ==========  ==========  ==========
 
 Earnings per share:
 
 Primary- Series A -
 
 Income before gain on sale
   of real estate                 $     0.32  $     0.40  $     0.42  $     0.43
 
 Gain on sale of real estate               -           -        0.12           -
                                  ----------  ----------  ----------  ----------
 
                                  $     0.32  $     0.40  $     0.54  $     0.43
                                  ==========  ==========  ==========  ==========
 
 Fully diluted- Series A -
 
 Income before gain on sale
   of real estate                 $     0.27  $     0.32  $     0.33  $     0.32
 
 Gain on sale of real estate               -           -        0.09           -
                                  ----------  ----------  ----------  ----------
 
                                  $     0.27  $     0.32  $     0.42  $     0.32
                                  ==========  ==========  ==========  ==========
 
</TABLE>

                                      F-11
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                            CONDENSED BALANCE SHEETS

<TABLE> 
<CAPTION> 
                                               September 30,  December 31,
                                                   1995          1994
                                               ------------   -----------
                                               (Unaudited)
                                     ASSETS
                                     ------
<S>                                            <C>            <C>
 Cash and cash equivalents                     $     19,000   $ 1,032,000
 Rent and other receivables                         340,000        41,000
 Prepaid expenses                                   114,000        88,000
 
 Real estate facilities at cost:
  Building, land improvements and equipment      23,171,000    23,026,000
  Land                                           12,695,000    12,695,000
                                               ------------   -----------
                                                 35,866,000    35,721,000
 
  Less accumulated depreciation                 (10,277,000)   (9,582,000)
                                               ------------   -----------
                                                 25,589,000    26,139,000
                                               ------------   -----------
 
 Total assets                                  $ 26,062,000   $27,300,000
                                               ============   ===========
<CAPTION> 
                      LIABILITIES AND SHAREHOLDERS' EQUITY
                      ------------------------------------
 
<S>                                              <C>            <C>
 Accounts payable                              $    487,000   $   506,000
 Dividends payable                                  746,000       771,000
 Advance payments from renters                      240,000       235,000
 Note payable                                       100,000     1,050,000
                                                               
 Shareholders' equity:                                         
  Series A common, $.01 par value,                             
     4,312,521 shares authorized,                              
     2,487,506 shares issued and                               
     outstanding (1,817,800 shares                             
     outstanding in 1994)                            25,000        18,000
  Convertible Series B common,                                 
     $.01 par value, 188,845 shares                            
     authorized and issued , none outstanding                  
     (188,845 issued and outstanding in 1994)             -         2,000
  Convertible Series C common,                                 
     $.01 par value, 535,061 shares                            
     authorized and issued , none outstanding                  
     (535,061 issued and outstanding in 1994)             -         5,000
                                                               
  Paid-in-capital                                31,305,000    31,713,000
  Cumulative income                              33,919,000    31,297,000
  Cumulative distributions                      (40,760,000)  (38,297,000)
                                               ------------   -----------
                                              
  Total shareholders' equity                     24,489,000    24,738,000
                                               ------------   -----------
                                              
 Total liabilities and shareholders' equity    $ 26,062,000   $27,300,000
                                               ============   ===========
</TABLE>


           See Accompanying notes to condensed financial statements.

                                      F-12
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                         CONDENSED STATEMENTS OF INCOME
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
                                Three Months Ended         Nine Months Ended
                                   September 30,             September 30,
                             -------------------------  ------------------------
                                 1995         1994         1995         1994
                             ------------  -----------  -----------  -----------
<S>                          <C>           <C>          <C>          <C>
 REVENUE:
 Rental income                 $1,844,000   $1,801,000   $5,371,000   $5,290,000
 Interest income                    5,000       10,000       14,000       19,000
                               ----------   ----------   ----------   ----------
                                1,849,000    1,811,000    5,385,000    5,309,000
                               ----------   ----------   ----------   ----------
 
 COSTS AND EXPENSES:
 
 Costs of  operations             508,000      495,000    1,508,000    1,491,000
 Management fees paid to
  affiliates                      108,000      107,000      317,000      312,000
 Depreciation and
  amortization                    242,000      231,000      716,000      704,000
 Administrative                    54,000       60,000      151,000      160,000
 Interest expense                  19,000       31,000       71,000       74,000
                               ----------   ----------   ----------   ----------
                                  931,000      924,000    2,763,000    2,741,000
                               ----------   ----------   ----------   ----------
 NET INCOME                    $  918,000   $  887,000   $2,622,000   $2,568,000
                               ==========   ==========   ==========   ==========
 
 Earnings per share:
    Primary - Series A         $     0.37   $     0.45   $     1.05   $     1.28
                               ==========   ==========   ==========   ==========
    Fully diluted - Series A   $     0.37   $     0.35   $     1.05   $     1.01
                               ==========   ==========   ==========   ==========
 Dividends declared per:
     Series A share            $     0.30   $     0.39   $     0.99   $     1.17
                               ==========   ==========   ==========   ==========
     Series B share                     -   $     0.39            -   $     1.17
                               ==========   ==========   ==========   ==========
 
 Weighted average common
     shares outstanding:
 
     Primary - Series A         2,487,506    1,808,467    2,487,506    1,828,200
                               ==========   ==========   ==========   ==========
 
     Fully diluted - Series A   2,487,506    2,532,373    2,487,506    2,552,106
                               ==========   ==========   ==========   ==========
</TABLE>


           See Accompanying notes to condensed financial statements.

                                      F-13
<PAGE>
 
                      PUBLIC STORAGE PROPERTIES IX, INC.
                  CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                            Convertible        Convertible                 Cumulative                     Total
                       Series A              Series B           Series C         Paid-in      Net         Cumulative   Shareholders'
                  Shares       Amount    Shares    Amount   Shares     Amount    Capital     Income      Distributions   equity
                  -------------------  ------------------- -------------------  ---------------------------------------------------
<S>                 <C>        <C>      <C>        <C>       <C>         <C>    <C>          <C>         <C>           <C>
Balances at
December 31, 1994   1,787,200 $18,000   188,845   $2,000    535,061   $5,000 $31,713,000   $31,297,000 ($38,297,000)  $24,738,000

Net income              -          -        -        -         -         -        -          2,622,000     -            2,622,000

Conversion of B &
C shares to A shares  723,906   7,000  (188,845)  (2,000)  (535,061)  (5,000)     -            -           -                -

Repurchase of shares  (23,600)     -        -        -         -         -      (408,000)      -           -             (408,000)

Cash distributions
declared:
 $0.99 per share-
  Series A              -          -        -        -         -         -        -            -         (2,463,000)   (2,463,000)
                   ------------------  ------------------  -----------------  ---------------------------------------------------
Balances at
September 30, 1995  2,487,506 $25,000         0       $0        0        $0   $31,305,000 $33,919,000  ($40,760,000)  $24,489,000
                   ==================  ==================  =================  ===================================================


</TABLE>
                            See Accompanying Notes.

                                     F-14
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                       CONDENSED STATEMENTS OF CASH FLOWS
                                  (UNAUDITED)
                       
<TABLE>
<CAPTION>
                                                Nine Months Ended September 30,
                                                -------------------------------
                                                     1995            1994
                                                --------------  ---------------
<S>                                             <C>             <C>
 
Cash flows from operating activities:
 
    Net income                                    $ 2,622,000      $ 2,568,000
 
    Adjustments to reconcile net
          income to net cash provided
          by operating activities:
 
      Depreciation and amortization                   716,000          704,000
      Increase in rent and other receivables         (299,000)         (16,000)
      Increase in prepaid expenses                    (26,000)          (1,000)
      Decrease in accounts payable                    (19,000)         (41,000)
      Increase (decrease) in advance payments
       from renters                                     5,000          (30,000)
                                                  -----------      -----------
 
          Total adjustments                           377,000          616,000
                                                  -----------      -----------
 
          Net cash provided by operating
           activities                               2,999,000        3,184,000
                                                  -----------      -----------
 
Cash flows from investing activities:
 
    Additions to real estate facilities              (166,000)        (107,000)
                                                  -----------      -----------
 
          Net cash used in investing
           activities                                (166,000)        (107,000)
                                                  -----------      -----------
 
Cash flows from financing activities:
 
    Distributions paid to shareholders             (2,488,000)      (2,378,000)
    Net (payments on) proceeds from note
     payable to Bank                                 (950,000)         800,000
    Purchase of Company Series A common stock        (408,000)      (1,150,000)
                                                  -----------      -----------
 
          Net cash used in financing
           activities                              (3,846,000)      (2,728,000)
                                                  -----------      -----------
 
Net (decrease) increase in cash
  and cash equivalents                             (1,013,000)         349,000
 
Cash and cash equivalents at
  the beginning of the period                       1,032,000          473,000
                                                  -----------      -----------
Cash and cash equivalents at
  the end of the period                           $    19,000      $   822,000
                                                  ===========      ===========
</TABLE>


           See Accompanying notes to condensed financial statements.

                                      F-15
<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                    NOTES TO CONDENSED FINANCIAL STATEMENTS
                                  (UNAUDITED)


1. The accompanying unaudited condensed financial statements have been prepared
   pursuant to the rules and regulations of the Securities and Exchange
   Commission. Certain information and footnote disclosures normally included in
   financial statements prepared in accordance with generally accepted
   accounting principles have been condensed or omitted pursuant to such rules
   and regulations, although management believes that the disclosures contained
   herein are adequate to make the information presented not misleading.  These
   unaudited condensed financial statements should be read in conjunction with
   the financial statements and related notes appearing in the Company's Form
   10-K for the year ended December 31, 1994.

2. In the opinion of management, the accompanying unaudited condensed financial
   statements reflect all adjustments, consisting of only normal accruals,
   necessary to present fairly the Company's financial position at September 30,
   1995 and December 31, 1994, the results of its operations for the three and
   nine months ended September 30, 1995 and 1994 and its cash flows for the six
   months then ended.

3. The results of operations for the three months and nine months ended
   September 30, 1995 are not necessarily indicative of the results expected for
   the full year.

4. The Convertible Series B shares and Convertible Series C shares convert
   automatically into Series A shares on a share-for-share basis (the
   "Conversion") when (A) the sum of (1) all cumulative dividends and other
   distributions from all sources paid with respect to the Series A shares
   (including liquidating distributions, but not including payments made to
   redeem such stock other than in liquidation) and (2) the cumulative
   Partnership distributions from all sources with respect to all units equals
   (B) the product of $20 multiplied by the number of the then outstanding
   "Original Series A shares" ("Total Capital Return").  The term "Original
   Series A shares" means the Series A shares issued in the Reorganization.  On
   February 9, 1995, the requirements for Conversion were met and the
   Convertible Series B shares and Convertible Series C shares converted to
   Series A shares.  As a result of the Conversion, 188,845 Convertible Series B
   shares and 535,061 Convertible Series C shares were converted into Series A
   shares on a share-for-share basis.  Prior to Conversion, the Series C shares
   did not receive dividends.

5. Public Storage, Inc. ("PSI") and Public Storage Management, Inc. ("PSMI"),
   the Company's mini-warehouse property manager, have entered into an Agreement
   and Plan of Reorganization by and among PSI, PSMI and Storage Equities, Inc.
   ("SEI"), dated as of June 30, 1995, pursuant to which PSMI would be merged
   into SEI.  Prior to the merger, substantially all of the United States real
   estate interests of PSI, together with Public Storage Commercial Properties
   Group, Inc. (the Company's business park property manager) and Public Storage
   Advisers, Inc. (SEI's investment adviser), will be combined with PSMI.  The
   merger is subject to a number of conditions.

   In August 1995, the Management Agreement with PSMI was amended to provide
   that upon demand from PSMI or SEI made prior to December 15, 1995, the
   Company agrees to prepay (within 15 days after such demand) up to 12 months
   of management fees (based on the management fees for the calendar year
   immediately preceding such prepayment) discounted at the rate of 14% per year
   to compensate for early payment.

                                      F-16
<PAGE>
 
                                                                      Appendix G

                            PS BUSINESS PARKS, INC.
                              FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
 
 
                                                                         Page
                                                                       Reference
                                                                       ---------
<S>                                                                    <C>
 
Report of independent auditors                                              G- 1
                                                                            
Balance sheets at December 31, 1994 and 1993                                G- 2
                                                                            
For the years ended December 31, 1994, 1993 and 1992:                       
                                                                            
   Statements of income                                                     G- 3
                                                                            
   Statements of shareholders' equity                                       G- 4
                                                                            
   Statements of cash flows                                                 G- 5
                                                                            
Notes to financial statements                                               G- 6
 
Condensed balance sheets at September 30, 1995 and December 31, 1994        G-10
                                                                             
Condensed statements of income for the three                                 
and nine months ended September 30, 1995 and 1994                           G-11
                                                                             
Condensed statement of shareholders' equity for the                          
nine months ended September 30, 1995                                        G-12
                                                                             
Condensed statements of cash flows for the                                   
nine months ended September 30, 1995 and 1994                               G-13
                                                                             
Notes to condensed financial statements                                     G-14
 
</TABLE>
<PAGE>
 
                         Report of Independent Auditors



The Board of Directors and Shareholders
PS Business Parks, Inc.


We have audited the accompanying balance sheets of PS Business Parks, Inc. as of
December 31, 1994 and 1993, and the related statements of income, shareholders'
equity and cash flows for each of the three years in the period ended December
31, 1994.  These financial statements are the responsibility of the Company's
management.  Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of PS Business Parks, Inc. at
December 31, 1994 and 1993, and the results of its operations and its cash flows
for each of the three years in the period ended December 31, 1994, in conformity
with generally accepted accounting principles.



                                             ERNST & YOUNG LLP


February 24, 1995

                                      G-1
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                                 BALANCE SHEETS
                           December 31, 1994 and 1993


<TABLE> 
<CAPTION> 
                                              1994          1993
                                          -----------   -----------

                                     ASSETS
                                     ------
 
<S>                                           <C>           <C>
Cash and cash equivalents                     $   101,000   $   408,000
                                           
Real estate facilities at cost:            
   Building, land improvements, tenant     
    improvements and equipment                  8,526,000     8,501,000
   Land                                         2,254,000     2,254,000
                                              -----------   -----------
                                               10,780,000    10,755,000
                                           
   Less accumulated depreciation               (4,072,000)   (3,737,000)
                                              -----------   -----------
                                                6,708,000     7,018,000
                                              -----------   -----------
                                           
Other assets                                       14,000        18,000
                                              -----------   -----------
                                           
      Total assets                            $ 6,823,000   $ 7,444,000
                                              ===========   ===========
 
<CAPTION> 
                      LIABILITIES AND SHAREHOLDERS' EQUITY
                      ------------------------------------
 
<S>                                           <C>           <C>
Accounts payable                              $   199,000   $   172,000
Dividends payable                                 178,000       202,000
Security deposits                                 159,000       159,000
Note payable                                      575,000             -
                                           
Shareholders' equity:                      
   Series A common, $.01 par value,        
      656,034 shares authorized,           
      393,650 shares issued and            
      outstanding (461,025 shares          
      issued and outstanding in 1993)               4,000         5,000
   Convertible Series B common, $.01 par
      value, 42,785 shares authorized,     
      issued and outstanding                        1,000         1,000
   Convertible Series C common, $.01 par
      value, 121,224 shares authorized,    
      issued and outstanding                        1,000         1,000
                                           
   Paid-in-capital                              7,239,000     8,252,000
   Cumulative income                            6,206,000     5,625,000
   Cumulative distributions                    (7,739,000)   (6,973,000)
                                              -----------   -----------
                                           
   Total shareholders' equity                   5,712,000     6,911,000
                                              -----------   -----------
 
Total liabilities and shareholders' equity    $ 6,823,000   $ 7,444,000
                                              ===========   ===========
 
</TABLE>

                            See accompanying notes.

                                      G-2
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                              STATEMENTS OF INCOME
                       For each of the three years in the
                         period ended December 31, 1994
<TABLE>
<CAPTION>
 
                                                 1994        1993        1992
                                              ----------  ----------  ----------
<S>                                           <C>         <C>         <C>
 
REVENUES:
 
Rental income                                 $1,723,000  $1,632,000  $1,732,000
Interest income                                    4,000           -       4,000
                                              ----------  ----------  ----------
                                               1,727,000   1,632,000   1,736,000
                                              ----------  ----------  ----------
 
 
COSTS AND EXPENSES:
 
Cost of operations                               620,000     518,000     473,000
Management fees paid to affiliate                 86,000      81,000      86,000
Depreciation and amortization                    363,000     356,000     372,000
Administrative                                    74,000      72,000      80,000
Interest expense                                   3,000           -           -
                                              ----------  ----------  ----------
 
                                               1,146,000   1,027,000   1,011,000
                                              ----------  ----------  ----------
 
NET INCOME                                    $  581,000  $  605,000  $  725,000
                                              ==========  ==========  ==========
 
 
Primary earnings per share-Series A           $     1.16  $     1.16  $     1.40
                                              ==========  ==========  ==========
 
Fully diluted earnings per share-Series A     $     0.96  $     0.96  $     1.14
                                              ==========  ==========  ==========
 
Dividends declared per share:
    Series A                                  $     1.60  $     1.60  $     1.60
                                              ==========  ==========  ==========
    Series B                                  $     1.60  $     1.60  $     1.60
                                              ==========  ==========  ==========
 
Weighted average Common shares outstanding:
    Primary-Series A                             440,121     464,275     470,258
                                              ==========  ==========  ==========
    Fully diluted-Series A                       604,130     628,284     634,267
                                              ==========  ==========  ==========
 
</TABLE>



                            See accompanying notes.

                                      G-3
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                      STATEMENTS OF SHAREHOLDERS' EQUITY
                For each of the three years in the period ended
                               December 31, 1994

<TABLE> 
<CAPTION> 
                                                  Convertible       Convertible
                                   Series A         Series B          Series C                Cumulative                  Total
                                --------------   --------------   --------------   Paid-in       net      Cumulative   shareholders'
                                Shares  Amount   Shares  Amount   Shares  Amount   Capital      income   distributions    equity
                                ------  ------   ------  ------   ------  ------   -------    ---------- ------------- ------------
<S>                            <C>      <C>     <C>      <C>     <C>      <C>     <C>         <C>        <C>           <C> 
Balances at December 31, 1991  474,125  $5,000   42,785  $1,000  121,224  $1,000  $8,453,000  $4,295,000  ($5,343,000)  $7,412,000

Net income                                                                                       725,000                   725,000
Repurchase of shares            (9,400)   -                                         (143,000)                             (143,000)

Cash distributions declared:
  $1.60 per share - Series A                                                                                 (751,000)    (751,000)
  $1.60 per share - Series B                                                                                  (68,000)     (68,000)
                               ---------------------------------------------------------------------------------------------------

Balances at December 31, 1992  464,725   5,000   42,785   1,000  121,224   1,000   8,310,000   5,020,000   (6,162,000)   7,175,000

Net income                                                                                       805,000                   605,000
Repurchase of shares            (3,700)   -                                          (58,000)                              (58,000)

Cash distributions declared:
  $1.60 per share - Series A                                                                                 (743,000)    (743,000)
  $1.60 per share - Series B                                                                                  (68,000)     (68,000)
                               ---------------------------------------------------------------------------------------------------

Balances at December 31, 1993  461,025   5,000   42,785   1,000  121,224   1,000   8,252,000   5,625,000   (6,973,000)   6,911,000

Net income                                                                                       581,000                   581,000
Repurchase of shares           (67,375) (1,000)                                   (1,013,000)                           (1,014,000)

Cash distributions declared:
  $1.60 per share - Series A                                                                                 (698,000)    (698,000)
  $1.60 per share - Series B                                                                                  (68,000)     (68,000)
                               ---------------------------------------------------------------------------------------------------

Balances at December 31, 1994  393,650  $4,000   42,785  $1,000  121,224  $1,000  $7,238,000  $6,206,000  ($7,739,000)  $5,712,000
                               ===================================================================================================
</TABLE> 

                            See accompanying notes

                                      G-4
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                            STATEMENTS OF CASH FLOWS
                       For each of the three years in the
                         period ended December 31, 1994
<TABLE>
<CAPTION>
 
 
                                           1994           1993          1992
                                        -----------     ---------     ---------- 
<S>                                    <C>            <C>           <C>
 
Cash flows from operating activities:
 
      Net income                        $   581,000     $ 605,000     $  725,000
 
      Adjustments to reconcile net
            income to net cash
             provided
            by operating activities:
 
        Depreciation and amortization       363,000       356,000        372,000
        Decrease in other assets              4,000         5,000        176,000
        Increase (decrease) in
         accounts payable                    27,000       (57,000)        56,000
        Increase (decrease) in
         security deposits                        -        25,000        (13,000)
                                        -----------     ---------     ---------- 
 
            Total adjustments               394,000       329,000        591,000
                                        -----------     ---------     ----------
 
            Net cash provided
                by operating
                 activities                 975,000       934,000      1,316,000
                                        -----------     ---------     ----------
 
Cash flows from investing activities:
 
      Additions to business park
       facility                             (53,000)     (122,000)      (103,000)
                                        -----------     ---------     ----------
 
            Net cash used in
                investing activities        (53,000)     (122,000)      (103,000)
                                        -----------     ---------     ----------
 
Cash flows from financing activities:
 
      Distributions paid to
       shareholders                        (790,000)     (812,000)      (823,000)
      Proceeds from note payable to
       Bank                                 575,000             -              -
      Purchase of Company Series A
         common stock                    (1,014,000)      (58,000)      (143,000)
                                        -----------     ---------     ----------
 
            Net cash used in
                financing activities     (1,229,000)     (870,000)      (966,000)
                                        -----------     ---------     ----------
Net (decrease) increase in
  cash and cash equivalents                (307,000)      (58,000)       247,000
 
Cash and cash equivalents at
  the beginning of the year                 408,000       466,000        219,000
                                        -----------     ---------     ----------
Cash and cash equivalents at
  the end of the year                   $   101,000     $ 408,000     $  466,000
                                        ===========     =========     ==========
</TABLE>


                            See accompanying notes.
                                        

                                      G-5
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                         NOTES TO FINANCIAL STATEMENTS
                               December 31, 1994

1.  Description of Business

         PS Business Parks, Inc. (the "Company") is a California corporation
    which has elected to qualify as a real estate investment trust ("REIT") for
    Federal income tax purposes.  The Company succeeded to the business of PS
    Business Parks, Ltd. (the "Partnership") in a reorganization transaction
    which was effective August 5, 1991 (the "Reorganization").

         The Company owns and operates a business park facility containing
    commercial or industrial spaces.

         The term of the Company is until all properties have been sold and, in
    any event, not later than December 31, 2038.  The bylaws of the Company
    provide that, during 1999, unless shareholders have previously approved such
    a proposal, the shareholders will be presented with a proposal to approve or
    disapprove (a) the sale or financing of all or substantially all of the
    properties and (b) the distribution of the proceeds from such transaction
    and, in the case of a sale, the liquidation of the Company.


2.  Summary of Significant Accounting Policies

    Income Taxes:

         The Company has and intends to continue to qualify as a REIT, as
    defined in Section 856 of the Internal Revenue Code (the Code).  As a REIT,
    the Company is not taxed on that portion of its taxable income which is
    distributed to its shareholders provided that the Company meets the
    requirements of the Code. The Company believes it is in compliance with
    these requirements and, accordingly, no provision for income taxes has been
    made.

    Statements of Cash Flows:

         For purposes of financial statement presentation, the Company considers
    all highly liquid debt instruments purchased with a maturity of three months
    or less to be cash equivalents.

         The Company paid $3,000 in interest costs during 1994.

    Real Estate Facilities:

         Cost of land includes appraisal and legal fees related to acquisition
    and closing costs.  Buildings, land improvements and equipment reflect costs
    incurred through December 31, 1994 and 1993 to develop the business park
    facility.  The buildings and equipment are depreciated on the straight-line
    basis over estimated useful lives of 25 and 5 years, respectively.  Included
    in depreciation and amortization is amortization of tenant improvements on
    the Company's business park facility of $27,000, $30,000 and $37,000 in
    1994, 1993 and 1992, respectively.

         At December 31, 1994, the basis of real estate facilities (excluding
    land) for Federal income tax purposes (after adjustment for accumulated
    depreciation of $5,300,000) is $3,124,000.

    Revenue Recognition:

         Property rents are recognized as earned.

                                      G-6
<PAGE>
 
2.  Summary of Significant Accounting Policies (continued)

    Net Income Per Share:

         Net income per share is based on net income attributable to each series
    of common shares and the weighted average number of such shares outstanding
    during the periods presented.

         Net income per share is presented on a primary and fully diluted basis.
   Primary earnings per share represents the Series A shareholders' rights to
   distributions out of the respective period's net income, which is calculated
   by dividing net income after reduction for distributions to the Convertible
   Series B shareholders (Series C shareholders are not entitled to cash
   distributions) by the weighted average number of outstanding Series A shares
   (Note 4).  Fully diluted earnings per share assumes conversion of the
   Convertible Series B and Series C shares into Series A shares.


3.  Related Party Transactions

         The Company has a Management Agreement with Public Storage Commercial
    Properties Group, Inc. (PSCPG), a subsidiary of Public Storage, Inc. (PSI),
    which is a wholly-owned subsidiary of PSI Holdings, Inc. (PSIH).  Under the
    terms of the agreement, PSCPG operates the business park facility for a fee
    which is equal to 5% of the facility's monthly gross revenue (as defined).

         The Management Agreement provides that the agreement will expire in
    February 2002 provided that in February of each year commencing February 21,
    1996 it shall be automatically extended for one year (thereby maintaining a
    seven-year term) unless either party notifies the other that the Management
    Agreement is not being extended, in which case it expires, on the first
    anniversary of its then scheduled expiration date.  The Management Agreement
    may also be terminated by either party for cause, but if terminated for
    cause by the Company, the Company retains the rights to use the service mark
    and related designs until the then scheduled expiration date, if applicable,
    or otherwise a date seven years after such termination.


4.  Shareholders' Equity

         Series A shares are entitled to all distributions of cash from sale or
    refinancing and participate ratably with the Convertible Series B shares in
    distributions of cash flow from operations.  The Convertible Series C shares
    (prior to conversion into Series A shares) will not participate in any
    distributions.

         The Convertible Series B shares and Convertible Series C shares will
    convert automatically into Series A shares on a share-for-share basis (the
    "Conversion") when (A) the sum of (1) all cumulative dividends and other
    distributions from all sources paid with respect to the Series A shares
    (including liquidating distributions, but not including payments made to
    redeem such stock other than in liquidation) and (2) the cumulative
    Partnership distributions from all sources with respect to all units equals
    (B) the product of $20 multiplied by the number of the then outstanding
    "Original Series A shares".  The term "Original Series A shares" means the
    Series A shares issued in the Reorganization.  Through December 31, 1994,
    the Company has made and declared cumulative cash distributions of
    approximately $7,106,000 with respect to the Series A shares. Accordingly,
    assuming no repurchases or redemptions of Series A shares, the Conversion
    would occur when $768,000 in additional distributions with respect to the
    Series A shares have been made.

                                      G-7
<PAGE>
 
    4.  Shareholders' Equity (continued)

         Assuming liquidation of the Company at its net book value at December
    31, 1994 and 1993, each Series of common shares would receive the following
    as a liquidating distribution:
<TABLE>
<CAPTION>
 
                                    1994        1993
                                 ----------  ----------
         <S>                     <C>         <C>
 
         Series A                $4,258,000  $5,836,000
         Convertible Series B       379,000     280,000
         Convertible Series C     1,075,000     795,000
                                 ----------  ----------
 
         Total                   $5,712,000  $6,911,000
                                 ==========  ==========
</TABLE>

         The Series A shares, Convertible Series B shares and Convertible Series
    C shares have equal voting rights.  The holders of the Convertible Series B
    and Convertible Series C shares have agreed to vote along with the majority
    of the unaffiliated Series A shareholders on matters other than control of
    the Company and its business.

         The Company's Board of Directors has authorized the Company to purchase
    up to 200,000 shares of the Company's Series A common stock. As of December
    31, 1994, the Company had purchased and retired 98,375 shares of Series A
    common stock, of which 67,375 and 3,700 were purchased and retired in 1994
    and 1993, respectively.

    For Federal income tax purposes, distributions declared by the Board of
    Directors in 1994, 1993 and 1992  were as follows:
<TABLE>
<CAPTION>
                           1994      1993      1992
                         --------  --------  --------
<S>                      <C>       <C>       <C>
 
    Ordinary income      $766,000  $697,000  $819,000
    Return of capital           -   114,000         -
                         --------  --------  --------
 
    Total                $766,000  $811,000  $819,000
                         ========  ========  ========
</TABLE>
5.  Note Payable to Bank

    In November 1994, the Company's Board of Directors authorized the Company to
    obtain a line of credit facility for a maximum of $1,500,000 for working
    capital purposes, including the repurchase of the Company's stock.

    In November 1994, the Company obtained a secured non-revolving credit
    facility with a bank for borrowings up to $1,500,000 for working capital
    purposes and to repurchase the Company's stock.  Outstanding borrowings on
    the credit facility which bear interest at the bank's prime rate plus .25%
    (8.75% at December 31, 1994) will convert to a term loan on July 1, 1995.
    Interest will be payable monthly beginning on January 1, 1995 until
    maturity.  Principal will be payable quarterly beginning on July 1, 1995.
    On December 31, 1998, the remaining unpaid principal and interest is due and
    payable.

    At December 31, 1994, the outstanding balance on the credit facility was
    $575,000.

    Under covenants of the credit facility, the Company is (1) required to
    maintain a ratio of debt to net worth (as defined) of not more than .6 to
    1.0, (2) required to maintain a REIT cash flow coverage ratio (as defined)
    measured on a year-to-date basis for each fiscal quarter of not less than
    1.2 to 1.0 and (3) beginning on and after the date on which the credit
    facility converts to a term loan, required to maintain a dividend cash flow
    coverage ratio (as defined) measured on a year- to-date basis for each
    fiscal quarter of not less than 1.0 to 1.0.  At December 31, 1994, the
    Company was in compliance with the covenants of the credit facility.

                                      G-8
<PAGE>
 
6.  Lease Agreements

    Leases relating to the Company's facility include long-term non-cancelable
    operating leases.  At December 31, 1994, the minimum lease amounts
    receivable under such non-cancelable leases were as follows:
<TABLE>
<CAPTION>
 
              Year       Amount
              ----     ----------
              <S>      <C>
 
              1995     $1,126,000
              1996        430,000
              1997        125,000
              1998         15,000
              1999          2,000
                       ----------
 
              Total    $1,698,000
                       ==========
 
</TABLE>

7.  Quarterly results (unaudited)

         The following is a summary of unaudited quarterly results of
    operations:
<TABLE>
<CAPTION>
                                        Three months ended
                            -------------------------------------------
                            March 1994  June 1994  Sept 1994  Dec. 1994
                            ----------  ---------  ---------  ---------
    <S>                     <C>         <C>        <C>        <C>
    Revenues                  $413,000   $458,000   $423,000   $433,000
                              --------   --------   --------   --------
                
    Expenses                   272,000    277,000    286,000    311,000
                              --------   --------   --------   --------
                
    Net income                $141,000   $181,000   $137,000   $122,000
                              ========   ========   ========   ========
 
    Primary earnings per 
        share- Series A          $0.27      $0.37      $0.27      $0.25
                                 =====      =====      =====      =====

    Fully diluted earnings 
        per share- Series A      $0.23      $0.29      $0.23      $0.21
                                 =====      =====      =====      =====
</TABLE> 
<TABLE>
<CAPTION>
 
                                        Three months ended
                            -------------------------------------------
                            March 1993  June 1993  Sept 1993  Dec. 1993
                            ----------  ---------  ---------  ---------
    <S>                     <C>         <C>        <C>        <C>
                       
    Revenues                  $420,000   $387,000   $413,000   $412,000
                              --------   --------   --------   --------
                       
    Expenses                   248,000    244,000    259,000    276,000
                              --------   --------   --------   --------
                       
    Net income                $172,000   $143,000   $154,000   $136,000
                              ========   ========   ========   ========
 
    Primary earnings 
        per share- Series A      $0.33      $0.27      $0.29      $0.27
                                 =====      =====      =====      =====

    Fully diluted earnings 
        per share- Series A      $0.27      $0.23      $0.24      $0.22
                                 =====      =====      =====      =====
</TABLE> 

                                      G-9
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                            CONDENSED BALANCE SHEETS


<TABLE> 
<CAPTION> 
                                               September 30,  December 31,
                                                   1995          1994    
                                               -----------    ----------- 
                                               (Unaudited)                

                                     ASSETS
                                     ------
<S>                                             <C>           <C>
  Cash and cash equivalents                     $   243,000   $   101,000
                                         
  Real estate facilities at cost:        
   Building, land improvements, tenant   
    improvements and equipment                    8,571,000     8,526,000
   Land                                           2,254,000     2,254,000
                                                -----------   -----------
                                                 10,825,000    10,780,000
                                         
   Less accumulated depreciation                 (4,300,000)   (4,072,000)
                                                -----------   -----------
                                                  6,525,000     6,708,000
                                                -----------   -----------
                                         
  Other assets                                       16,000        14,000
                                                -----------   -----------
                                         
      Total assets                              $ 6,784,000   $ 6,823,000
                                                ===========   ===========
<CAPTION> 
                      LIABILITIES AND SHAREHOLDERS' EQUITY
                      ------------------------------------
 
<S>                                             <C>           <C>
  Accounts payable                              $   212,000   $   199,000
  Dividends payable                                 214,000       178,000
  Security deposits                                 172,000       159,000
  Note payable                                    1,000,000       575,000
 
  Shareholders' equity:
   Series A common, $.01 par value,
      656,034 shares authorized,
      534,159 shares issued and
      outstanding (393,650 shares
      issued and outstanding in 1994)                 5,000         4,000
   Convertible Series B common, $.01 par
      value, 42,785 shares authorized and
      issued, none outstanding (42,785
      issued and outstanding in 1994)                     -         1,000
   Convertible Series C common, $.01 par
      value, 121,224 shares authorized and
      issued, none outstanding (121,224
      issued and outstanding in 1994)                     -         1,000
 
   Paid-in-capital                                6,836,000     7,239,000
   Cumulative income                              6,640,000     6,206,000
   Cumulative distributions                      (8,295,000)   (7,739,000)
                                                -----------   -----------
 
   Total shareholders' equity                     5,186,000     5,712,000
                                                -----------   -----------
 
  Total liabilities and shareholders' equity    $ 6,784,000   $ 6,823,000
                                                ===========   ===========
 
</TABLE>
           See Accompanying notes to condensed financial statements.

                                      G-10
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                         CONDENSED STATEMENTS OF INCOME
                                  (UNAUDITED)
<TABLE>
<CAPTION>
 
 
                                    Three Months Ended     Nine Months Ended
                                      September 30,          September 30,
                                   --------------------  ----------------------
<S>                                <C>        <C>        <C>         <C>
                                      1995       1994       1995        1994
                                    --------   --------  ----------  ----------
 
  REVENUES:
 
  Rental income                     $438,000   $422,000  $1,318,000  $1,292,000
  Interest income                      2,000      1,000       6,000       2,000
                                    --------   --------  ----------  ----------
 
                                     440,000    423,000   1,324,000   1,294,000
                                    --------   --------  ----------  ----------
 
  COSTS AND EXPENSES:
 
  Cost of operations                 137,000    158,000     444,000     440,000
  Management fees
    paid to an affiliate              22,000     21,000      66,000      64,000
  Depreciation and amortization       93,000     90,000     265,000     276,000
  Administrative                      17,000     17,000      56,000      55,000
  Interest expense                    22,000          -      59,000           -
                                    --------   --------  ----------  ----------
 
                                     291,000    286,000     890,000     835,000
                                    --------   --------  ----------  ----------
 
  NET INCOME                        $149,000   $137,000  $  434,000  $  459,000
                                    ========   ========  ==========  ==========
 
  Earnings per share:
 
    Primary - Series A              $   0.28   $   0.27  $     0.93  $     0.91
                                    ========   ========  ==========  ==========
    Fully diluted - Series A        $   0.28   $   0.23  $     0.80  $     0.75
                                    ========   ========  ==========  ==========
 
  Dividends declared per share:
 
      Series A                      $   0.40   $   0.40  $     1.20  $     1.20
                                    ========   ========  ==========  ==========
      Series B                      $      -   $   0.40  $     0.80  $     1.20
                                    ========   ========  ==========  ==========
 
  Weighted average common
    shares outstanding:
 
    Primary - Series A               536,292    442,325     436,286     449,069
                                    ========   ========  ==========  ==========
    Fully diluted - Series A         536,292    606,334     545,626     613,078
                                    ========   ========  ==========  ==========
 
</TABLE>


           See Accompanying notes to condensed financial statements.

                                      G-11
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                  CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY
                              SEPTEMBER 30, 1995
                                  (UNAUDITED)


<TABLE> 
<CAPTION> 
                                                    Convertible    Convertible
                                   Series A          Series B       Series C                  Cumulative                  Total
                              ------------------ ---------------  ---------------  Paid-in       net       Cumulative  shareholder's
                               Shares    Amount   Shares  Amount  Shares Amount    Capital      income   distributions    equity
                              ------------------ ---------------  --------------- ---------- -----------  ------------  -----------
<S>                             <C>      <C>      <C>     <C>     <C>     <C>    <C>          <C>         <C>           <C>   
Balances at December 31, 1994   393,850   $4,000   42,785 $1,000  121,224 $1,000  $7,239,000  $6,206,000   ($7,739,000)  $5,712,000
                                                                                                          
Net Income                                                                                       434,000                    434,000
Conversion of B & C                                             
shares to A shares              164,000    2,000  (42,785)(1,000)(121,224)(1,000)
Repurchase of shares            (23,500)  (1,000)                                   (403,800)                              (404,000)
                                                                
Cash distribution declared:                                     
  $1.20 per share-Series A                                                                                    (522,000)    (522,000)
  $0.80 per share-Series B                                                                                     (34,000)     (34,000)
                              ------------------------------------------------------------------------------------------------------
                                                                
                                                                
Balances at September 30, 1995  534,159   $5,000        0     $0        0     $0  $6,836,000  $6,640,000   ($8,295,000)  $5,186,000
                              ======================================================================================================

</TABLE> 
                            See Accompanying Notes

                                    G - 12

<PAGE>
 
                            PS BUSINESS PARKS, INC.
                       CONDENSED STATEMENTS OF CASH FLOWS
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                           Nine Months Ended
                                                             September 30,
                                                         ----------------------
                                                            1995        1994
                                                         ----------  ----------
<S>                                                      <C>         <C>
 
Cash flows from operating activities:
 
      Net income                                         $ 434,000   $ 459,000
 
      Adjustments to reconcile net
            income to net cash provided
            by operating activities:
 
        Depreciation and amortization                      265,000     276,000
        (Increase) decrease in other assets                 (2,000)      4,000
        Increase in accounts payable                        13,000      46,000
        Increase (decrease) in security deposits            13,000      (3,000)
                                                         ---------   ---------
 
            Total adjustments                              289,000     323,000
                                                         ---------   ---------
 
            Net cash provided by operating activities      723,000     782,000
                                                         ---------   ---------
 
Cash flows from investing activities:
 
      Additions to business park facility                  (82,000)    (40,000)
                                                         ---------   ---------
 
            Net cash used in investing activities          (82,000)    (40,000)
                                                         ---------   ---------
 
Cash flows from financing activities:
 
      Distributions paid to shareholders                  (520,000)   (597,000)
      Proceeds from note payable to Bank                   425,000           -
      Purchase of Company Series A common stock           (404,000)   (298,000)
                                                         ---------   ---------
 
            Net cash used in financing activities         (499,000)   (895,000)
                                                         ---------   ---------
 
Net increase (decrease) in cash
  and cash equivalents                                     142,000    (153,000)
 
Cash and cash equivalents at
  the beginning of the period                              101,000     408,000
                                                         ---------   ---------
 
Cash and cash equivalents at
  the end of the period                                  $ 243,000   $ 255,000
                                                         =========   =========
 
</TABLE>


           See Accompanying notes to condensed financial statements.

                                      G-13
<PAGE>
 
                            PS BUSINESS PARKS, INC.
                    NOTES TO CONDENSED FINANCIAL STATEMENTS
                                  (UNAUDITED)

1.  The accompanying unaudited condensed financial statements have been prepared
    pursuant to the rules and regulations of the Securities and Exchange
    Commission.  Certain information and footnote disclosures normally included
    in financial statements prepared in accordance with generally accepted
    accounting principles have been condensed or omitted pursuant to such rules
    and regulations, although management believes that the disclosures contained
    herein are adequate to make the information presented not misleading.  These
    unaudited condensed financial statements should be read in conjunction with
    the financial statements and related notes appearing in the Company's Form
    10-K for the year ended December 31, 1994.

2.  In the opinion of management, the accompanying unaudited condensed financial
    statements reflect all adjustments, consisting of only normal accruals,
    necessary to present fairly the Company's financial position at September
    30, 1995 and December 31, 1994, the results of its operations for the three
    and nine months ended September 30, 1995 and 1994 and its cash flows for the
    nine months then ended.

3.  The results of operations for the three and nine months ended September 30,
    1995 are not necessarily indicative of the results expected for the full
    year.

4.  In November 1994, the Company obtained a credit facility with a bank for
    borrowings up to $1,500,000 for working capital purposes and general
    corporate purposes.  The credit facility was guaranteed by Public Storage,
    Inc.  In June 1995, the Company renegotiated its credit facility to reduce
    the maximum borrowings to $1,000,000, extend the conversion date to a term
    loan to October 31, 1995, change the maturity date to December 31, 1997 and
    release the guaranty.  Outstanding borrowings on the credit facility which
    bear interest at the bank's prime rate plus .25% (9% at September 30, 1995)
    will convert to a term loan on October 31, 1995.  Interest is payable
    monthly beginning on January 1, 1995 until maturity. Principal will be
    payable quarterly beginning on October 31, 1995.  On December 31, 1997, the
    remaining unpaid principal and interest is due and payable.  At September
    30, 1995, the outstanding balance on the credit facility was $1,000,000.
    The Company is subject to certain covenants including cash flow coverages
    and dividend restrictions.  As of September 30, 1995, the Company was in
    compliance with the covenants of the credit facility except one for which it
    had received a waiver as to compliance.

5.  The Company's Articles of Incorporation provide that the Series B shares and
    Series C shares will convert automatically into Series A shares on a share-
    for-share basis (the "Conversion") when (A) the sum of (1) all cumulative
    dividends and other distributions from all sources paid with respect to the
    Series A shares (including liquidating distributions, but not including
    payments made to redeem such stock other than in liquidation) and (2) the
    cumulative Partnership distributions from all sources with respect to all
    Units (including the General Partners' 1% interest) equals (B) the product
    of $20 multiplied by the number of the then outstanding "Original Series A
    shares".  The term "Original Series A shares" means the Series A shares
    issued in the Reorganization.  On August 31, 1995, the requirements for
    Conversion were met and the Convertible Series B shares and Convertible
    Series C shares converted into Series A shares.

6.  The Company reduced its regular dividend rate to $.19 per share per quarter
    effective with the dividend payable on October 13, 1995 to shareholders of
    record on September 29, 1995.  The Company also declared a one-time special
    dividend of $.21 per share payable on October 13, 1995 to shareholders of
    record on September 29, 1995. .

                                      G-14
<PAGE>
 
                                                                      Appendix H

                       PUBLIC STORAGE PROPERTIES IX, INC.
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


Results of Operations
- ---------------------

    Nine months ended September 30, 1995 compared to the nine months ended
    ----------------------------------------------------------------------
September 30, 1994:  Public Storage Properties IX, Inc.'s net income for the
- -------------------                                                         
nine months ended September 30, 1995 and 1994 was $2,622,000 and $2,568,000,
respectively, representing an increase of $54,000.  The increase  is primarily a
result of an increase in property net operating income (rental revenue less cost
of operations, management fees paid to affiliates and depreciation expense).

    Rental income was $5,371,000 and $5,290,000 for the nine months ended
September 30, 1995 and 1994, respectively.  This increase of $81,000 is
primarily a result of an increase in rental income at Public Storage Properties
IX, Inc.'s four mini-warehouses located in the State of California.  Overall,
Public Storage Properties IX, Inc.'s ten other mini-warehouse facilities showed
increases in rental income as a result of increases in rental rates as well.
Rental revenues remained stable at  Public Storage Properties IX's two business
park facilities for the nine month period ended September 30, 1995 compared to
the same period in 1994.

    Public Storage Properties IX, Inc.'s mini-warehouse operations had weighted
average occupancy levels of 89.5% and 91.4% at September 30, 1995 and 1994,
respectively.  Public Storage Properties IX, Inc.'s business park operations had
weighted average occupancy levels of 90.8% and 81.6% for the nine month periods
ended September 30, 1995 and 1994, respectively.

    Cost of operations (including management fees paid to affiliates and
depreciation expense) increased  slightly, $34,000, for the nine month period
ended September 30, 1995 versus the nine month period ended September 30, 1994.

    During May 1995, Public Storage Properties IX, Inc.'s Houston, Texas
property sustained fire damage to two of its buildings which impacted operations
by 175 units, or, 30% of the property being unavailable for occupancy.  During
the third quarter, Public Storage Properties IX, Inc. incurred approximately
$280,000 in repair costs which were reimbursed by insurance proceeds in October
1995.  Reconstruction of these buildings has been completed.  Additionally,
Public Storage Properties IX, Inc. will be reimbursed with business interruption
insurance for loss of rents caused by the fire.

    Interest expense for the nine and three month periods ended September 30,
1995 compared to the same period in 1994 decreased $3,000 and $12,000 as a
result of lower average balances on its credit facility in 1995 compared to the
same periods in 1994.

   Year ended December 31, 1994 compared to year ended December 31, 1993.  Net
   ----------------------------------------------------------------------     
income in 1994 was $3,388,000 compared to $3,545,000 in 1993, representing a
decrease of $157,000.  The decrease in net income is primarily due to a gain on
the sale of real estate of $237,000 realized in the third quarter of 1993.  Net
income per fully diluted Series A share was $1.33 in both 1993 and 1994.  Net
income per fully diluted shares remained stable due to the repurchase and
retirement of Series A shares.

   During 1994, property net operating income (rental income less cost of
operations, management fees paid to affiliates and depreciation expense)
increased $142,000 from $3,525,000 in 1993 to $3,667,000 in 1994.  This increase
is attributable to an increase in rental revenues at Public Storage Properties
IX, Inc.'s mini-warehouse facilities.

   Rental income for the mini-warehouse operations increased $379,000 or 6% from
$5,947,000 in 1993 to $6,326,000 in 1994.  Cost of operations (including
management fees paid to an affiliate of Public Storage 

                                      H-1
<PAGE>
 
Properties IX, Inc.) increased $140,000 or 7% from $1,978,000 in 1993 to
$2,118,000 in 1994. The increase in rental income is primarily due to slight
increases in rental rates. The increase in cost of operations is mainly due to
increases in property taxes and repairs and maintenance offset by a decrease in
advertising expense.

   Property net operating income before depreciation expense with respect to
Public Storage Properties IX, Inc.'s business park facility decreased by
$113,000 or 22% from $510,000 in 1993 to $397,000 in 1994.  This decrease is
primarily due to a decrease in rental revenues as a result of a decrease in
rental rates and occupancy caused by market conditions where Public Storage
Properties IX, Inc.'s two business park facilities operate.  The decrease in
rental revenue was offset by a decrease in cost of operations.  The decrease in
cost of operations is due to decreases in property taxes and management fees
paid to affiliates.

   Weighted average occupancy levels were 91% for the mini-warehouse facilities
and 83% for the business park facility in 1994 compared to 91% for the mini-
warehouse facilities and 90% for the business park facility in 1993.

   Interest income increased from $14,000 in 1993 to $23,000 in 1994 for a net
increase of $9,000.  This increase is primarily due to a slight increase in the
average interest rate earned on invested cash.

   During 1994, Public Storage Properties IX, Inc. incurred $95,000 of interest
expense on its line of credit facility.  No such expense was incurred in 1993
since Public Storage Properties IX, Inc. did not have a credit facility.

Mini-warehouse Operating Trends.
- --------------------------------
   The following table illustrates the operating trends of Public Storage
Properties IX, Inc.'s 15 mini-warehouses:
<TABLE>
<CAPTION>
                                                    Years ended December 31,
                                                   ---------------------------
                                                     1994      1993     1992
                                                   --------  --------  -------
<S>                                                <C>       <C>       <C>
Weighted average occupancy level                        91%       91%      90%
Realized monthly rent per occupied
  square foot (1)                                    $ .70     $ .65    $ .64
Operating margin (2):
      Before reduction for depreciation expense         65%       66%      64%
      After reduction for depreciation expense          52%       52%      49%
 
</TABLE>
- --------------------

(1) Realized rent per square foot represents the actual revenue earned  per
    occupied square foot.  Management believes this is a more relevant measure
    than the posted rental rates, since posted rates can be discounted through
    the use of promotions. Includes administrative and late fees.

(2) Operating margin (before reduction for depreciation expense) is computed by
    dividing rental income less cost of operations by rental income.  Operating
    margin (after reduction for depreciation expense) is computed by dividing
    rental income less cost of operations and depreciation expense by rental
    income.

  Management believes that the trends in property operations are due to:

  .  Increasing occupancy levels resulting from decreased levels of new supply
     in the industry and promotion of Public Storage Properties IX, Inc.'s
     facilities.

  .  Increasing realized rents per square foot of mini-warehouse space resulting
     from increased demand for space and fewer promotional discounts of
     scheduled rents required to maintain relatively high occupancies.

  .  Increasing revenues due to increasing realized rents and occupancy levels
     offset in part by an increase in expenses (approximately 3% for 1994 (as
     compared to 1993) and 2% in 1993.

                                      H-2
<PAGE>
 
Liquidity and Capital Resources.
- --------------------------------

  Capital structure.  Public Storage Properties IX, Inc.'s financial profile is
  -----------------                                                            
characterized by a low level of debt to total capitalization, increasing net
income, increasing cash provided by operating activities and increasing funds
from operations ("FFO").

  Net Cash Provided by Operating Activities and Funds from Operations.  Public
  -------------------------------------------------------------------         
Storage Properties IX, Inc. believes that important measures of its performance
as well as liquidity are net cash provided by operating activities and FFO.

  Net cash provided by operating activities reflects the cash generated from
Public Storage Properties IX, Inc.'s business before distributions to
shareholders, capital expenditures and principal payments on debt.  Net cash
provided by operating activities has increased over the past years from
$4,091,000 in 1993 to $4,289,000 in 1994.  Net cash provided by operating
activities decreased from $3,184,00 for the nine months ended September 30, 1994
to $2,999,000 for the nine months ended September 30, 1995.

  The Public Storage Properties IX, Inc.'s FFO is defined generally by the
National Associations of Real Estate Investment Trust ("NAREIT") as net income
before loss on early extinguishment of debt and gain on disposition of real
estate, plus depreciation and amortization.  FFO for the years ended December
31, 1994 and 1993 were $4,326,000 and $4,259,000, respectively.  FFO for the
nine months ended September 30, 1995 and 1994 was $3,338,000 and $3,272,000,
respectively.  NAREIT has recently adopted revisions to the definition of funds
from operations which will become effective in 1996.  The most material impact
of the new guidelines will be (i) amortization of deferred financing costs will
be treated as an expense - i.e. it will no longer be treated as an add-back to
net income and (ii) certain gains on sales of land will be included in funds
from operations if deemed to be recurring.  These changes will have no impact on
the way Public Storage Properties IX, Inc. currently computes its funds from
operations.  FFO is a supplemental performance measure for equity REITs used by
industry analysts.  FFO does not take into consideration principal payments on
debt, capital improvements, distributions and other obligations of Public
Storage Properties IX, Inc..  The only depreciation or amortization that is
added to income to derive FFO is depreciation and amortization directly related
to physical real estate.  All depreciation and amortization reported by Public
Storage Properties IX, Inc. relates to physical real estate and does not include
any depreciation or amortization related to goodwill, deferred financing costs
or other intangibles.  FFO is not a substitute for Public Storage Properties IX,
Inc.'s net cash provided by operating activities or net income, as a measure of
liquidity or operating performance.

  The following table summarizes Public Storage Properties IX, Inc.'s ability to
make capital improvements to maintain its facilities through the use of cash
provided by operating activities.  The remaining cash flow is available to
Public Storage Properties IX, Inc. to pay distributions to shareholders and
repurchase its stock.

<TABLE>
<CAPTION>
                              Nine months ended
                                September 30,        Years ended December 31,
                             -------------------  --------------------------------
                               1995       1994       1994        1993       1992
                             ---------  --------  ----------  ----------  --------
                                                (In thousands)
<S>                          <C>        <C>       <C>         <C>         <C>
 
Net income                    $ 2,622   $ 2,568     $ 3,388     $ 3,545   $ 4,936
Depreciation and
 amortization                     716       704         938         951       984
                              -------   -------     -------     -------   -------
Funds from Operations
  (Net cash provided by
   operating
  activities before
   changes in
  working capital
   components)                  3,338     3,272       4,326       4,496     5,920
Capital improvements to
  maintain facilities            (166)     (107)       (160)       (139)     (179)
                              -------   -------     -------     -------   -------
Excess funds available for
  distributions to
   shareholders
  and repurchase of stock       3,172     3,165       4,166       4,357     5,741
Cash distributions to
 shareholders                  (2,488)   (2,378)     (3,156)     (3,328)   (5,534)
                              -------   -------     -------     -------   -------
Excess funds available for
  repurchase of stock         $   684   $   787     $ 1,010     $ 1,029   $   207
                              =======   =======     =======     =======   =======
</TABLE>

                                      H-3
<PAGE>
 
  Cash flow from operations is expected to be sufficient to cover operating
expenses, capital improvements, debt service requirements and distributions (at
current dividend levels of $.30 per quarter per share) to shareholders.

  Public Storage Properties IX, Inc. believes its geographically diverse
portfolio has resulted in a relatively stable and predictable investment
portfolio.

    In December 1993, Public Storage Properties IX, Inc. obtained an unsecured
revolving credit facility from a commercial bank for borrowings up to $2,000,000
for working capital purposes.  Outstanding borrowings on the revolving credit
facility bore interest at the bank's prime rate plus one and one-half percent
through September 30, 1994.  In September, 1994, Public Storage Properties IX,
Inc. renegotiated its credit facility to reduce the interest rate from prime
plus one and one-half percent to prime and eliminate the amortization
requirement of loan principal.  The credit facility matures on December 31, 1996
at which time all unpaid principal and accrued interest is due.  As of September
30, 1995, Public Storage Properties IX, Inc. had borrowed $100,000 against the
credit facility.

    Public Storage Properties IX, Inc.'s Board of Directors has authorized
Public Storage Properties, Inc. to purchase up to 500,000 shares of Series A
common stock.  Public Storage Properties IX, Inc. has repurchased 408,117 shares
of Series A common stock, of which 23,600 shares were purchased in the first
three months of 1995.

    The bylaws of Public Storage Properties IX, Inc. provide that, during 1996,
unless shareholders have previously approved such a proposal, the shareholders
will be presented with a proposal to approve or disapprove (a) the sale or
financing of all or substantially all of the properties and (b) the distribution
of the proceeds from such transaction and, in the case of a sale, the
liquidation of Public Storage Properties IX, Inc.

    The Convertible Series B shares and Convertible Series C shares convert
automatically into Series A shares on a share-for-share basis (the "Conversion")
when (A) the sum of (1) all cumulative dividends and other distributions from
all sources paid with respect to the Series A shares (including liquidating
distributions, but not including payments made to redeem such stock other than
in liquidation) and (2) the cumulative Partnership distributions from all
sources with respect to all units equals (B) the product of $20 multiplied by
the number of the then outstanding "Original Series A shares" ("Total Capital
Return").  The term "Original Series A shares" means the Series A shares issued
in the Reorganization of Public Storage Properties IX, Inc. from a partnership
to a corporation.

    On February 9, 1995, Public Storage Properties IX, Inc.'s 188,845
convertible B and 535,061 convertible C shares converted into Series A shares as
provided for under Public Storage Properties IX, Inc.'s articles of
incorporation.  Prior to Conversion, the Series C shares did not receive
distributions.  As a result of the additional Series A shares outstanding due to
conversion, Public Storage Properties IX, Inc. decreased its regular quarterly
dividend to $.30 per share beginning with the March 31, 1995 dividend.  Public
Storage Properties IX, Inc. believes that this level of dividends can be
supported by cash flow from operations and enable Public Storage Properties IX,
Inc. to repay advances under the terms of the credit facility.

                                      H-4
<PAGE>
 
                                                                      Appendix I
                            PS BUSINESS PARKS, INC.
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


Results of Operations
- ---------------------

    Nine months ended September 30, 1995 compared to the nine months ended
    ----------------------------------------------------------------------
September 30, 1994:  The PS Business Parks, Inc.'s net income for the nine
- -------------------                                                       
months ended September 30, 1995 and 1994 was $434,000 and $459,000,
respectively, representing a decrease of $25,000 or 5%.  The decrease  is
primarily the result of an increase in interest expense.

    Rental income for the nine months ended September 30, 1995 and 1994 was
$1,318,000 and $1,292,000, respectively, representing an increase of $26,000 or
2%.  The increase is primarily due to an increase in cost recovery income
realized in 1995 (operating expenses billed to tenants) compared to 1994.

    PS Business Parks, Inc.'s business park facility had an average occupancy
level of 97.9% and 98.4% for the nine month periods ended September 30, 1995 and
1994, respectively.

    Cost of operations (including management fees paid to an affiliate and
depreciation expense) for the nine months ended September 30, 1995 and 1994 was
$775,000 and $780,000, respectively, representing a decrease of $5,000 or 1%.
The decrease is primarily attributable to a decrease in property tax expense
offset by an increase in payroll cost and tenant improvement expenses.  Property
taxes were higher in 1994 due to a property tax assessment received in 1994
related to prior years.  The increase in tenant improvement expenses is
attributable to cost incurred on repairs made to office space associated with
higher tenant turnover in 1995 compared to 1994.

    During the nine months ended September 30, 1995, PS Business Parks, Inc.
incurred $59,000 in interest expense on its line of credit facility.  No such
expense was incurred during the same periods in 1994 since PS Business Parks,
Inc. did not have a credit facility.


   Year ended December 31, 1994 compared to year ended December 31, 1993.  Net
   ----------------------------------------------------------------------     
income in 1994 was $581,000 compared to $605,000 in 1993, representing a
decrease of $24,000. The decrease in net income is primarily due to a decrease
in the net operating income of PS Business Parks, Inc.'s business park facility
in San Jose, California.  Net income per fully diluted Series A share remained
stable at $.96 in 1994 and 1993.  Net income per share in 1994 remained stable,
despite the decrease in net income, as a result of a reduction in the number of
Series A shares outstanding due to PS Business Parks, Inc.'s repurchase of
Series A shares.

   During 1994, property net operating income (rental income less cost of
operations, management fees paid to an affiliate and depreciation expense)
decreased $23,000 from $677,000 in 1993 to $654,000 in 1994.  This decrease is
attributable to an increase in cost of operations at PS Business Parks, Inc.'s
business park facility combined with an increase in rental revenues.  PS
Business Parks, Inc.'s depreciation expense remained stable in 1994 compared to
1993.

   Rental income of PS Business Parks, Inc.'s business park facility increased
$91,000 or 6% from $1,632,000 in 1993 to $1,723,000 in 1994.  Cost of operations
(including management fees paid to an affiliate of the Company) increased
$107,000 or 18% from $599,000 in 1993 to $706,000 in 1994.  The results of these
changes was a net decrease in property net operating income before depreciation
expense of $16,000 or 2% from $1,033,000 in 1993 to $1,017,000 in 1994.  The
increase in rental income is partially attributable to a one-time increase in
revenues realized from cost recovery income (operating expenses billed to
tenants) of $51,000 during the second quarter of 1994.  The market in which PS
Business Parks, Inc.'s business park facility operates is showing a slow and
steady improvement.  Fewer rental concessions were needed to lease out suites in
1994 than in 1993.  Approximately 95% of PS Business Parks, Inc.'s leases are on
a "triple-net" basis.  Additionally, PS Business Parks, Inc. has increased its
base rental rate by approximately 2%.  The increase in cost of operations is
primarily due to an increase in property taxes resulting from an increase in the
assessed value of the property.  As a result of this assessment, property taxes
increased $119,000 in 1994 

                                      I-1
<PAGE>
 
compared to 1993 (including a one-time adjustment of approximately $71,000 for
the retroactive implementation of the assessment). PS Business Parks, Inc.
projects property taxes in 1995 to be approximately $140,000.

   Weighted average occupancy levels for PS Business Parks, Inc.'s business park
facility were 99% and 98% in 1994 and 1993, respectively.

   During 1994, PS Business Parks, Inc. incurred $3,000 of interest expense on
its line of credit facility.  No such expense was incurred in 1993 since PS
Business Parks, Inc. did not have a credit facility.

Business Park Operating Trends.
- -------------------------------

   The following table illustrates the operating trends for PS Business Parks,
Inc.'s business park facility:
<TABLE>
<CAPTION>
 
                                              For the year ended December 31,
                                             ----------------------------------
                                                1994        1993        1992
                                             ----------  ----------  ----------
<S>                                          <C>         <C>         <C>
 
Weighted average occupancy level                    99%         98%         97%
Realized monthly rent per occupied
  square foot (1)                                $ .84       $ .80       $ .86
Operating margin: (2)
      Before reduction for depreciation
       expense                                      59%         63%         68%
      After reduction for depreciation
       expense                                      38%         41%         46%
 
</TABLE>
- --------------------

(1) Realized rent per square foot represents the actual revenue earned per
    occupied square foot.  Management believes this is a more relevant measure
    than the posted rental rates, since posted rates can be discounted through
    the use of promotions.  Includes administrative and late fees.

(2) Operating margin (before reduction for depreciation expense) is computed by
    dividing rental income less cost of operations by rental income.  Operating
    margin (after reduction for depreciation expense) is computed by dividing
    rental income less cost of operations and depreciation by rental income.

   The decrease in operating margin from 1992 to 1994 is due to two factors.
The decrease from 1992 to 1993 is mainly due to a decrease in rental income as a
result of a decrease in average rental rates.  The decrease from 1993 to 1994 is
due to an increase in property taxes in 1994 resulting from an increase in the
assessed value of the property.


Liquidity and Capital Resources.
- --------------------------------

   Capital structure.  PS Business Parks, Inc.'s financial profile is
   -----------------                                                 
characterized by a low level of debt to total capitalization, decreasing net
income, decreasing cash provided by operating activities and decreasing funds
from operations ("FFO").

   Net Cash Provided by Operating Activities and Funds from Operations.  PS
   -------------------------------------------------------------------     
Business Parks, Inc. believes that important measures of its performance as well
as liquidity are net cash provided by operating activities and FFO.

   Net cash provided by operating activities (net income plus depreciation and
amortization) reflects the cash generated from PS Business Parks, Inc.'s
business before distributions to shareholders, capital expenditures and
principal payments on debt.  Net cash provided by operating activities has
decreased over the past years from $1,316,000 in 1992 to $975,000 in 1994 as a
result of a decrease in property net operating income.  Net cash provided by
operating activities decreased from $782,000 for the nine months ended September
30, 1994 to $723,000 for the same period in 1995.

   PS Business Parks, Inc.'s FFO is defined generally by the National
Association of Real Estate Investment Trusts (NAREIT) as net income before loss
on early extinguishment of debt and gain on disposition of real estate, plus
depreciation and amortization.  FFO for the years ended December 31, 

                                      I-2
<PAGE>
 
1994 and 1993 was $944,000 and $961,000, respectively. FFO for the nine months
ended September 30, 1995 and 1994 was $699,000 and $735,000, respectively.
NAREIT has recently adopted revisions to the definition of funds from operations
which will become effective in 1996. The most material impact of the new
guidelines will be (i) amortization of deferred financing costs will be treated
as an expense -i.e., it will no longer be treated as an add-back to net income
and (ii) certain gains on sales of land will be included in funds from
operations if deemed to be recurring. These changes will have no impact on the
way PS Business Parks, Inc. currently computes its funds from operations. FFO is
a supplemental performance measure for equity REITs used by industry analysts.
FFO does not take into consideration principal payments on debt, capital
improvements, distributions and other obligations of PS Business Parks, Inc..
The only depreciation or amortization that is added to income to derive FFO is
depreciation and amortization directly related to physical real estate. All
depreciation and amortization reported by PS Business Parks, Inc. relates to
physical real estate and does not include any depreciation or amortization
related to goodwill, deferred financing costs or other intangibles. FFO is not a
substitute for PS Business Parks, Inc.'s net cash provided by operating
activities or net income, as a measure of liquidity or operating performance.

   The following table summarizes PS Business Parks, Inc.'s ability to make
capital improvements to maintain its facility through the use of cash provided
by operating activities.  The remaining cash flow is available to PS Business
Parks, Inc. to pay distributions to shareholders and repurchase its stock.

<TABLE>
<CAPTION>
                             Nine months ended
                              September 30,         Years ended December 31,
                             -----------------  --------------------------------
                              1995      1994      1994        1993        1992
                             -------  --------  ---------  -----------  --------
                                               (In thousands)
<S>                          <C>      <C>     <C>          <C>          <C>
 
Net income                    $ 434   $ 459        $ 581        $ 605    $  725
Depreciation and
 amortization                   265     276          363          356       372
                              -----   -----        -----        -----    ------
Funds from Operations
  (Net cash provided by
   operating
  activities before
   changes in
  working capital
   components)                  699     735          944          961     1,097
Capital improvements to
  maintain facilities           (82)    (40)         (53)        (122)     (103)
                              -----   -----        -----        -----    ------
Excess funds available for
  distributions to
   shareholders
  and repurchase of stock       617     695          891          839       994
Cash distributions to
 shareholders                  (520)   (597)        (790)        (812)     (823)
                              -----   -----        -----        -----    ------
Excess funds available for
  repurchase of stock         $  97   $  98        $ 101        $  27    $  171
                              =====   =====        =====        =====    ======
</TABLE>

   Cash flow from operations is expected to be sufficient to cover operating
expenses, capital improvements, debt service requirements and distributions (at
current dividend levels of $.19 per quarter per share) to shareholders.

   In November 1994, PS Business Parks, Inc. obtained a credit facility with a
bank for borrowings up to $1,500,000 for working capital purposes and general
corporate purposes. The credit facility was guaranteed by Public Storage
Management, Inc.  In June 1995, PS Business Parks, Inc. renegotiated its credit
facility to reduce the maximum borrowings to $1,000,000, extend the conversion
date to a term loan to October 31, 1995, change the maturity date to 
December 31, 1997 and release the guaranty.  Outstanding borrowings on the 
credit facility which bear interest at the bank's prime rate plus .25% (9% at 
September 30, 1995) will convert to a term loan on October 31, 1995.  Interest
is payable monthly beginning on January 1, 1995 until maturity.  Principal will
be payable quarterly beginning on October 31, 1995.  On December 31, 1997, the
remaining unpaid principal and interest is due and payable. At September 30,
1995, the outstanding balance on the credit facility was $1,000,000.

   PS Business Parks, Inc.'s Articles of Incorporation provide that the Series B
shares and Series C shares will convert automatically into Series A shares on a
share-for-share basis (the "Conversion") when (A) the sum of (1) all cumulative
dividends and other distributions from all sources paid with respect to 

                                      I-3
<PAGE>
 
the Series A shares (including liquidating distributions, but not including
payments made to redeem such stock other than in liquidation) and (2) the
cumulative Partnership distributions from all sources with respect to all Units
(including the General Partners' 1% interest) equals (B) the product of $20
multiplied by the number of the then outstanding "Original Series A shares". The
term "Original Series A shares" means the Series A shares issued in the
Reorganization.

    On August 31, 1995, PS Business Parks, Inc.'s Convertible Series B and
Convertible Series C shares converted into Series A shares in accordance with PS
Business Parks, Inc.'s Articles of Incorporation.  Prior to conversion, the
Series C shares did not receive dividends.  As a result of the additional Series
A shares outstanding due to the conversion, PS Business Parks, Inc. decreased
its regular dividend to $.19 per share per quarter effective with the dividend
payable on October 13, 1995 to shareholders of record on September 29, 1995.  PS
Business Parks, Inc. believes that this level of dividends can be supported by
cash flow from operations and enable PS Business Parks, Inc. to repay the
advances under the terms of the credit facility discussed above.  In addition to
the regular dividend, PS Business Parks, Inc. declared a one-time special
dividend of $.21 per share payable on October 13, 1995 to shareholders of record
on September 29, 1995.

    PS Business Parks, Inc.'s Board of Directors has authorized the PS Business
Parks, Inc. to purchase up to 200,000 Series A common stock.  As of September
30, 1995, the Company had repurchased 121,875 shares of Series A common stock.
From October 1, 1995 through October 31, 1995, PS Business Parks, Inc.
repurchased no additional Series A shares.

    The bylaws of PS Business Parks, Inc. provide that, during 1999, unless
shareholders have previously approved such a proposal, the shareholders will be
presented with a proposal to approve or disapprove (a) the sale or financing of
all or substantially all of the properties and (b) the distribution of the
proceeds from such transaction and, in the case of a sale, the liquidation of PS
Business Parks, Inc.

                                      I-4
<PAGE>
 
                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


ITEM 20.  Indemnification of Directors, Officers and Agents.

     In August 1988, the Company's Articles of Incorporation were amended (as
approved by the shareholders in August 1988) to provide that the Company may
indemnify the agents of the Company to the maximum extent permitted under
California law.  See Section V of the Certificate of Amendment of Articles of
Incorporation (Exhibit 3.11) and Article VII of the By-Laws (Exhibit 3.14) which
are incorporated herein by this reference.  In October 1988, the Company also
entered into indemnity agreements (in the form approved by the shareholders in
August 1988) with its management and non-management directors and executive
officers.  The agreements permit the Company to indemnify directors and
executive officers to the maximum extent permitted under California law and
prohibit the Company from terminating its indemnification obligations as to acts
or omissions of any director or executive officer occurring before the
termination.  The indemnification and limitations on liability permitted by the
amendment to the Articles of Incorporation and the agreements are subject to the
limitations set forth by California law.  The Company believes the
indemnification agreements will assist it in attracting and retaining qualified
individuals to serve as directors and executive officers of the Company.


ITEM 21.  Exhibits and Financial Statement Schedules.

     (a)  Exhibits:  See Exhibit Index contained herein.

     (b)  Financial Statement Schedules:

          See Index to Financial Statement Schedules in registrant's Annual
Report on Form 10-K for the year ended December 31, 1994 and incorporated herein
by reference.

          All other financial statement schedules are omitted since the required
information is not present or not present in amounts sufficient to require
submission of the schedule, or because the information required is  included in
the consolidated financial statements or the notes thereto.


ITEM 22.  Undertakings.

     The undersigned Registrant hereby undertakes as follows:

   1.     To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

          (i)   To include any prospectus required by Section 10(a)(3) of the
          Securities Act of 1933;

          (ii)  To reflect in the prospectus any facts or events arising after
          the effective date of the registration statement (or the most recent
          post-effective amendment thereof) which, individually or in the
          aggregate, represent a fundamental change in the information set forth
          in the registration statement. Notwithstanding the foregoing, any
          increase or decrease in volume of securities offered (if the total
          dollar value of securities offered would not exceed that which was
          registered) and any deviation from the low or high and of the
          estimated maximum offering range may be reflected in the form of
          prospectus filed with the Commission pursuant to Rule 424(b) if, in
          the aggregate, the changes in volume and price represent no more than
          20 percent change in the maximum aggregate offering price set forth in
          the "Calculation of Registration Fee" table in the effective
          registration statement.

                                      S-1
<PAGE>
 
          (iii)  To include any material information with respect to the plan of
          distribution not previously disclosed in the registration statement or
          any material change to such information in the registration statement.

Provided, however, that paragraphs 3.(i) and 3.(ii) do not apply if the
registration statement is on Form S-3 or Form S-8, and the information required
to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed by the registrant pursuant to Section 13 or Section 15(d)
of the Securities Exchange Act of 1934 that are incorporated by reference in the
registration statement.

     2.   That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     3.   To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

     4.   That, for purposes of determining any liability under the Securities
Act of 1933, each filing of the registrant's annual report pursuant to section
13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where
applicable, each filing of an employee benefit plan's annual report pursuant to
section 15(d) of the Securities Exchange Act of 1934) that is incorporated by
reference in the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

     5.   That prior to any public reoffering of the securities registered
hereunder through use of a prospectus which is a part of this registration
statement, by any person or party who is deemed to be an underwriter within the
meaning of Rule 145(c), the issuer undertakes that such reoffering prospectus
will contain the information called for by the applicable registration form with
respect to reofferings by persons who may be deemed underwriters, in addition to
the information called for by the other Items of the applicable form.

     6.   That every prospectus (i) that is filed pursuant to paragraph (1)
immediately preceding, or (ii) that purports to meet the requirements of section
10(a)(3) of the Act and is used in connection with an offering of securities
subject to Rule 415, will be filed as a part of an amendment to the registration
statement and will not be used until such amendment is effective, and that, for
purposes of determining any liability under the Securities Act of 1933, each
such post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     7.   To respond to requests for information that is incorporated by
reference into the prospectus pursuant to Item 4, 10(b), 11, or 13 of this form,
within one business day of receipt of such request, and to send the incorporated
documents by first class mail or other equally prompt means.  This includes
information contained in documents  filed subsequent to the effective date of
the registration statement through the date of responding to the request.

     8.   Except as permitted by General Instruction H to Form S-4 (in a
transaction not covered by General Instruction I), to supply by means of a post-
effective amendment all information concerning a transaction, and the company
being acquired involved therein, that was not the subject of and included in the
registration statement when it became effective.

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions described under Item 20 above,
or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Securities Act of 1933 and is, therefore, unenforceable.  In
the event that a claim for indemnification against such liabilities (other than
the payment by the registrant of expenses incurred or paid by a director,
officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling
person in connection with the securities being registered, the Registrant will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act of 1933 and will be governed by the final adjudication of such
issue.

                                      S-2
<PAGE>
 
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Glendale, State of
California, on the 30th day of January, 1996.

                                  PUBLIC STORAGE, INC.


                                  By: B. WAYNE HUGHES
                                     -------------------------------------------
                                      B. Wayne Hughes, Chairman of the Board

    Each person whose signature appears below hereby authorizes B. Wayne Hughes
and Harvey Lenkin, and each of them, as attorney-in-fact, to sign on his behalf,
individually and in each capacity stated below, any amendment, including post-
effective amendments to this Registration Statement, and to file the same, with
all exhibits thereto, and all documents in connection therewith, with the
Securities and Exchange Commission.

    Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.
<TABLE>
<CAPTION>
 
         Signature                       Capacity                     Date
         ---------                       --------                     ----
 <S>                           <C>                              <C> 
 
 B. WAYNE HUGHES             Chairman of the Board, Chief       January 30, 1996
 -------------------------   Executive Officer and Director
 B. Wayne Hughes             (principal executive officer)
 
 
HARVEY LENKIN                President and Director             January 30, 1996
- -------------------------
Harvey Lenkin

 
RONALD L. HAVNER, JR.        Senior Vice President and Chief    January 30, 1996
- -------------------------    Financial Officer (principal
Ronald L. Havner, Jr.        financial officer and principal
                             accounting officer)
 
 
 
ROBERT J. ABERNETHY                      Director               January 30, 1996
- -------------------------
Robert J. Abernethy
 
 
DANN V. ANGELOFF                         Director               January 30, 1996
- -------------------------
Dann V. Angeloff


WILLIAM C. BAKER                         Director               January 30, 1996
- --------------------------
William C. Baker


BERRY HOLMES                             Director               January 30, 1996
- -------------------------- 
Berry Holmes


URI P. HARKHAM                           Director               January 30, 1996
- --------------------------
Uri P. Harkham
</TABLE>

                                      S-3
<PAGE>
 
                                 EXHIBIT INDEX


  2.1  Agreement and Plan of Reorganization among Registrant, Public Storage
       Properties IX, Inc. ("PSP9") and PS Business Parks, Inc. ("PSBP") dated
       as of December 13, 1995 (filed as Appendix A to the Joint Proxy Statement
       and Prospectus).

  3.1  Restated Articles of Incorporation.  Filed with Registrant's Registration
       Statement No. 33-54557 and incorporated herein by reference.

  3.2  Certificate of Determination for the 10% Cumulative Preferred Stock,
       Series A. Filed with Registrant's Registration Statement No. 33-54557 and
       incorporated herein by reference.

  3.3  Certificate of Determination for the 9.20% Cumulative Preferred Stock,
       Series B. Filed with Registrant's Registration Statement No. 33-54557 and
       incorporated herein by reference.

  3.4  Amendment to Certificate of Determination for the 9.20% Cumulative
       Preferred Stock, Series B. Filed with Registrant's Registration Statement
       No. 33-56925 and incorporated herein by reference.

  3.5  Certificate of Determination for the 8.25% Convertible Preferred Stock.
       Filed with Registrant's Registration Statement No. 33-54557 and
       incorporated herein by reference.

  3.6  Certificate of Determination for the Adjustable Rate Cumulative Preferred
       Stock, Series C.  Filed with Registrant's Registration Statement No. 33-
       54557 and incorporated herein by reference.

  3.7  Certificate of Determination for the 9.50% Cumulative Preferred Stock,
       Series D. Filed with Registrant's Form 8-A/A Registration Statement
       relating to the 9.50% Cumulative Preferred Stock, Series D and
       incorporated herein by reference.

  3.8  Certificate of Determination for the 10% Cumulative Preferred Stock,
       Series E.  Filed with Registrant's Form 8-A/A Registration Statement
       relating to the 10% Cumulative Preferred Stock, Series E and incorporated
       herein by reference.

  3.9  Certificate of Determination for the 9.75% Cumulative Preferred Stock,
       Series F. Filed with Registrant's Form 8-A/A Registration Statement
       relating to the 9.75% Cumulative Preferred Stock, Series F and
       incorporated herein by reference.

  3.10 Certificate of Determination for the Convertible Participating Preferred
       Stock.  Filed with Registrant's Registration Statement No. 33-63947 and
       incorporated herein by reference.

  3.11 Certificate of Amendment of Articles of Incorporation. Filed with
       Registrant's Registration Statement No. 33-63947 and incorporated herein
       by reference.

  3.12 Certificate of Determination for the 8-7/8% Cumulative Preferred Stock,
       Series G.  Filed with Registrant's Form 8-A/A Registration Statement
       relating to the 8-7/8% Cumulative Preferred Stock, Series G and
       incorporated herein by reference.

  3.13 Certificate of Determination for the 8.45% Cumulative Preferred Stock,
       Series H. Filed with Registrant's Form 8-A/A Registration Statement
       relating to the 8.45% Cumulative Preferred Stock, Series H and
       incorporated herein by reference.

  3.14 Bylaws, as amended.  Filed with Registrant's Registration Statement No.
       33-64971 and incorporated herein by reference.

  5.1  Opinion on legality.  Filed herewith.

                                      S-4
<PAGE>
 
  8.1  Opinion on tax matters for PSP9.  Filed herewith.

  8.2  Opinion on tax matters for PSBP.  Filed herewith.

  10.1 Loan Agreement between Registrant and Aetna Life Insurance Company dated
       as of July 11, 1988. Filed with Registrant's Current Report on Form 8-K
       dated July 14, 1988 and incorporated herein by reference.

  10.2 Amendment to Loan Agreement between Registrant and Aetna Life Insurance
       Company dated as of September 1, 1993.  Filed with Registrant's Annual
       Report on Form 10-K for the year ended December 31, 1993 and incorporated
       herein by reference.

  10.3 Credit Agreement by and among Registrant, Wells Fargo Bank, National
       Association, as agent, and the financial institutions party thereto dated
       as of May 22, 1995. Filed with Registrant's Quarterly Report on Form 10-Q
       for the period ended June 30, 1995 and incorporated herein by reference.

  10.4 Note Assumption and Exchange Agreement by and among Public Storage
       Management, Inc., Public Storage, Inc., Registrant and the holders of the
       notes dated as of November 13, 1995. Filed with Registrant's Registration
       Statement No. 33-64971 and incorporated herein by reference.

 *10.5 Registrant's 1990 Stock Option Plan.  Filed with Registrant's Annual
       Report on Form 10-K for the year ended December 31, 1994 and incorporated
       herein by reference.

 *10.6 Registrant's 1994 Stock Option Plan.  Filed with Registrant's Annual
       Report on Form 10-K for the year ended December 31, 1994 and incorporated
       herein by reference.

  10.7 Agreement and Plan of Reorganization by and among Public Storage, Inc.,
       Public Storage Management, Inc. and Registrant dated as of June 30, 1995.
       Filed as Appendix A to Registrant's Proxy Statement dated October 11,
       1995 (filed October 13, 1995) and incorporated herein by reference.

  10.8 Amendment to Agreement and Plan of Reorganization by and among Public
       Storage, Inc., Public Storage Management, Inc. and Registrant dated as of
       November 13, 1995. Filed with Registrant's Current Report on Form 8-K
       dated November 16, 1995 and incorporated herein by reference.

  23.1 Consent of Independent Auditors.  Filed herewith.

  23.2 Consent of David Goldberg (included in Exhibit 5.1).

  23.3 Consent of Hogan & Hartson L.L.P. (included in Exhibit 8.1).

  23.4 Consent of Charles R. Wilson & Associates, Inc.  Filed herewith.

  99.1 Proxy card for PSP9.  Filed herewith.

  99.2 Proxy card for PSBP.  Filed herewith.

  99.3 Cash Election Form for PSP9.  Filed herewith.

  99.4 Cash Election Form for PSBP.  Filed herewith.

  99.5 Real Estate Appraisal Report by Charles R. Wilson & Associates, Inc.
       dated as of October 31, 1995 for PSP9 (filed as Appendix B-1 to the Joint
       Proxy Statement and Prospectus).

  99.6 Real Estate Appraisal Report by Charles R. Wilson & Associates, Inc.
       dated as of November 1, 1995 for PSBP (filed as Appendix B-2 to the Joint
       Proxy Statement and Prospectus).

                                      S-5
<PAGE>
 
  99.7 Opinion of Robert A. Stanger & Co., Inc. dated January 31, 1996 for PSP9
       (filed as Appendix C-1 to the Joint Proxy Statement and Prospectus).

  99.8 Opinion of Robert A. Stanger & Co., Inc. dated January 31, 1996 for PSBP
       (filed as Appendix C-2 to the Joint Proxy Statement and Prospectus).



- -------------

  *  Compensatory benefit plan.

                                      S-6

<PAGE>
 
                                 DAVID GOLDBERG
                   Senior Vice President and General Counsel
                      600 North Brand Boulevard, Suite 300
                        Glendale, California 91203-1241


                                January 30, 1996



Public Storage, Inc.
600 North Brand Boulevard
Glendale, California 91203-1241

Gentlemen:

  As Senior Vice President and General Counsel of Public Storage, Inc. (the
"Company"), I have examined the Registration Statement on Form S-4, which is
expected to be filed by the Company with the Securities and Exchange Commission
on or about the date of delivery of this opinion (the "Registration Statement"),
which relates to the offer and sale of the Company's common stock, par value
$.10 per share (the "Shares").

  I am familiar with the proceedings taken or to be taken by the Company
relating to the authorization and issuance of the Shares in the manner set forth
in the Registration Statement.  I have also examined the Company's Restated
Articles of Incorporation and Revised Bylaws and have made such other
investigation as I have deemed necessary in order to express the opinions
contained herein.

  It is my opinion that:

  1. The Company is a corporation duly organized and validly existing in good
standing under the laws of the State of California.

  2. The Shares, when issued and delivered in the manner and on the terms
described in the Registration Statement, will be legally issued, fully paid and
nonassessable.

  I hereby consent to the reference to me under the caption "Legal Opinions" in
the Registration Statement and to the filing of this opinion as an exhibit to
the Registration Statement or amendments thereto.

                                       Very truly yours,

                                       /S/ DAVID GOLDBERG

                                       DAVID GOLDBERG



                                  Exhibit 5.1

<PAGE>
 
                                                                     Exhibit 8.1



                                January 30, 1996



Public Storage Properties IX, Inc. 
600 N. Brand Blvd.
Glendale, California  91203-1241

Ladies and Gentlemen:

          This opinion is being delivered to you in accordance with Section
7.1.7 of the Agreement and Plan of Reorganization by and among Public Storage,
Inc., a California corporation ("PSI"), Public Storage Properties IX, Inc., a
California corporation ("PSP9") and PS Business Parks, Inc., a California
corporation, dated December 13, 1995 (the "Merger Agreement").  Pursuant to the
Merger Agreement, PSP9 will merge with and into PSI (the "Merger").

          Except as otherwise provided, capitalized terms referred to herein
have the meanings set forth in the Merger Agreement and in the Joint Proxy
Statement and Prospectus that is a part of the Registration Statement filed with
the Securities and Exchange Commission on or about the date of delivery of this
opinion (the "Joint Proxy Statement and Prospectus").  All section references,
unless otherwise indicated, are to the Internal Revenue Code of 1986, as amended
(the "Code").

          We have acted as special tax counsel to PSP9 in connection with the
Merger.  As such, and for the purpose of rendering this opinion, we have
examined and are relying upon (without any independent investigation or review
thereof) the truth and accuracy, at all relevant times, of the statements,
covenants, representations and warranties contained in the following documents
(including all exhibits and schedules thereto):

          1.  The Merger Agreement;

          2.  Representations made to us by PSI;

          3.  Representations made to us by PSP9;

          4.  The Joint Proxy Statement and Prospectus;
<PAGE>
 
Public Storage Properties IX, Inc. 
January 30, 1996                 
Page 2                            


          5.   The Shareholder Agreement dated January 30, 1996 provided to
us by B. Wayne Hughes; and

          6.  Such other instruments and documents related to the formation,
organization and operation of PSI and PSP9 or to the consummation of the Merger
and the transactions contemplated thereby as we have deemed necessary or
appropriate.

          In connection with rendering this opinion, we have assumed or obtained
representations (and are relying thereon, without any independent investigation
or review thereof) that:

          1.  Original documents (including signatures) are authentic, documents
submitted to us as copies conform to the original documents, and there has been
(or will be by the Effective Time of the Merger) due execution and delivery of
all documents where due execution and delivery are prerequisites to
effectiveness thereof.

          2.  The Merger will be effective under the applicable state law.

          3.  The continuity of interest requirement as specified in Treas. Reg.
(S) 1.368-1(b) and as interpreted in certain Internal Revenue Service rulings
and federal judicial decisions will be satisfied.

          4.  No outstanding indebtedness of PSP9 or PSI has or will represent
equity for tax purposes; no outstanding equity of PSP9 or PSI has represented or
will represent indebtedness for tax purposes.

          Based on our examination of the foregoing items and subject to the
assumptions, exceptions, limitations and qualifications set forth herein, we are
of the opinion (1) that for federal income tax purposes, the Merger will
constitute a "reorganization" as defined in Section 368(a) of the Code, (2) that
PSI will continue to qualify as a REIT  under sections 856 through 860 of the
Internal Revenue Code (the "Code") following the merger of Public Storage
Management, Inc. ("PSMI") into PSI (the "PSMI Merger") so long as (A) PSI has
met at all times since the PSMI Merger and continues to meet the stock ownership
and gross income requirements applicable to REITs and (B) either PSMI at the
time of (and after giving effect to) the PSMI Merger was not considered to have
any current or accumulated earnings and profits for tax purposes or PSI made
distributions prior to the end of 1995 in an amount sufficient to eliminate such
earnings and profits, and (3) that the discussion 
<PAGE>
 
Public Storage Properties IX, Inc.
January 30, 1996                 
Page 3                            

under the heading "Certain Federal Income Tax Matters" in the Joint Proxy
Statement and Prospectus fairly summarizes the federal income tax considerations
that are material to a PSP9 Shareholder.

          In addition to the assumptions set forth above, this opinion is
subject to the exceptions, limitations and qualifications set forth below:

          1.  This opinion represents and is based upon our best judgment
regarding the application of relevant current provisions of the Code and
interpretations of the foregoing as expressed in existing judicial decisions,
administrative regulations and published rulings and procedures.  Our opinion is
not binding upon the Internal Revenue Service or the courts, and the Internal
Revenue Service is not precluded from asserting a contrary position.
Furthermore, no assurance can be given that future legislative, judicial or
administrative changes, on either a prospective or retroactive basis, would not
adversely affect the accuracy of the opinion expressed herein.  Nevertheless, we
undertake no responsibility to advise you of any new developments in the
application or interpretation of the federal income tax laws.

          2.  This opinion addresses only the specific tax opinion set forth
above, and does not address any other federal, state, local or foreign tax
consequences that may result from the Merger or any other transaction (including
any transaction undertaken in connection with the Merger).  In particular, we
express no opinion regarding, among other things:

          (i) whether and the extent to which any PSP9 Shareholder who has
provided or will provide services to PSP9 or PSI will have compensation income
under any provision of the Code and the effects of such compensation income,
including but not limited to the effect upon the basis and holding period of the
PSI Common Stock received by any such shareholder in the Merger;

          (ii) the potential application of the "golden parachute" provisions
(Sections 280G, 3121(v)(2) and 4999) of the Code, the alternative minimum tax
provisions (Sections 55, 56 and 57) of the Code or Sections 305, 306, 357, and
708 of the Code, or the regulations promulgated thereunder;

          (iii) the tax consequences of the Merger to PSP9 or PSI, including
without limitation the recognition of any gain after application of any
provision of the Code, as well as the regulations promulgated thereunder and
judicial interpretations thereof;
<PAGE>
 
Public Storage Properties IX, Inc.
January 30, 1996                 
Page 4

          (iv) the basis of any equity interest in PSP9 acquired by PSI in the
Merger; and

          (v) the tax consequences of the Merger (including the opinion set
forth above) as applied to specific PSP9 Shareholders and/or holders of options
or warrants for PSP9 stock or that may be relevant to particular classes of PSP9
Shareholders and/or holders of options or warrants for PSP9 stock, including but
not limited to dealers in securities, corporate shareholders subject to the
alternative minimum tax, foreign persons, and holders of shares acquired upon
exercise of stock options or in other compensatory transactions.

          3.  No opinion is expressed as to any transaction other than the
Merger as described in the Merger Agreement or to any transaction whatsoever,
including the Merger, if all the transactions described in the Merger Agreement
are not consummated in accordance with the terms of such Merger Agreement and
without waiver or breach of any material provision thereof or if all of the
representations, warranties, statements and assumptions upon which we relied are
not true and accurate at all relevant times.  In the event any one of the
statements, representations, warranties or assumptions upon which we have relied
to issue this opinion is incorrect, our opinion might be adversely affected and
may not be relied upon.

          4.  This opinion is intended solely for the purposes set forth in
Section 7.1.7 of the Merger Agreement; it may not be relied upon for any other
purpose or by any other person or entity, and may not be made available to any
other person or entity without our prior written consent.

     We hereby consent to the filing of this opinion letter as Exhibit 8.1 to
the Registration Statement and to the reference to this firm under the captions
"Legal Opinions" and "Certain Federal Income Tax Matters" in the Joint Proxy
Statement and Prospectus.  In giving the consent, we do not thereby admit that
we are an "expert" within the meaning of the Securities Act of 1933, as amended.

                              Very truly yours,
                              
                              /s/ HOGAN & HARTSON L.L.P. 
                
                              HOGAN & HARTSON L.L.P. 

<PAGE>
 
                                                                     Exhibit 8.2



                                January 30, 1996



PS Business Parks, Inc.
600 N. Brand Blvd.
Glendale, California  91203-1241

Ladies and Gentlemen:

          This opinion is being delivered to you in accordance with Section
7.1.7 of the Agreement and Plan of Reorganization by and among Public Storage,
Inc., a California corporation ("PSI"), Public Storage Properties IX, Inc., a
California corporation, and PS Business Parks, Inc., a California corporation
("PSBP"), dated December 13, 1995 (the "Merger Agreement").  Pursuant to the
Merger Agreement, PSBP will merge with and into PSI (the "Merger").

          Except as otherwise provided, capitalized terms referred to herein
have the meanings set forth in the Merger Agreement and in the Joint Proxy
Statement and Prospectus that is part of the Registration Statement filed with
the Securities and Exchange Commission on or about the date of delivery of this
opinion (the "Joint Proxy Statement and Prospectus").  All section references,
unless otherwise indicated, are to the Internal Revenue Code of 1986, as amended
(the "Code").

          We have acted as special tax counsel to PSBP in connection with the
Merger.  As such, and for the purpose of rendering this opinion, we have
examined and are relying upon (without any independent investigation or review
thereof) the truth and accuracy, at all relevant times, of the statements,
covenants, representations and warranties contained in the following documents
(including all exhibits and schedules thereto):

          1.  The Merger Agreement;

          2.  Representations made to us by PSI;

          3.  Representations made to us by PSBP;

          4.  The Joint Proxy Statement and Prospectus;
<PAGE>
 
PS Business Parks, Inc.
January 30, 1996
Page 2


          5.  Such other instruments and documents related to the formation,
organization and operation of PSI and PSBP or to the consummation of the Merger
and the transactions contemplated thereby as we have deemed necessary or
appropriate.

          In connection with rendering this opinion, we have assumed or obtained
representations (and are relying thereon, without any independent investigation
or review thereof) that:

          1.  Original documents (including signatures) are authentic, documents
submitted to us as copies conform to the original documents, and there has been
(or will be by the Effective Time of the Merger) due execution and delivery of
all documents where due execution and delivery are prerequisites to
effectiveness thereof.

          2.  The Merger will be effective under the applicable state law.

          3.  The continuity of interest requirement as specified in Treas. Reg.
(S) 1.368-1(b) and as interpreted in certain Internal Revenue Service rulings
and federal judicial decisions will be satisfied.

          4.  No outstanding indebtedness of PSBP or PSI has or will represent
equity for tax purposes; no outstanding equity of PSBP or PSI has represented or
will represent indebtedness for tax purposes.

          Based on our examination of the foregoing items and subject to the
assumptions, exceptions, limitations and qualifications set forth herein, we are
of the opinion (1) that for federal income tax purposes, the Merger will
constitute a "reorganization" as defined in Section 368(a) of the Code, (2) that
PSI will continue to qualify as a REIT  under sections 856 through 860 of the
Internal Revenue Code (the "Code") following the merger of Public Storage
Management, Inc. ("PSMI") into PSI (the "PSMI Merger") so long as (A) PSI has
met at all times since the PSMI Merger and continues to meet the stock ownership
and gross income requirements applicable to REITs and (B) either PSMI at the
time of (and after giving effect to) the PSMI Merger was not considered to have
any current or accumulated earnings and profits for tax purposes or PSI made
distributions prior to the end of 1995 in an amount sufficient to eliminate such
earnings and profits, and (3) that the discussion under the heading "Certain
Federal Income Tax Matters" in the Joint Proxy 
<PAGE>
 
PS Business Parks, Inc.
January 30, 1996
Page 3


Statement and Prospectus fairly summarizes the federal income tax considerations
that are material to a PSBP Shareholder.

          In addition to the assumptions set forth above, this opinion is
subject to the exceptions, limitations and qualifications set forth below:

          1.  This opinion represents and is based upon our best judgment
regarding the application of relevant current provisions of the Code and
interpretations of the foregoing as expressed in existing judicial decisions,
administrative regulations and published rulings and procedures.  Our opinion is
not binding upon the Internal Revenue Service or the courts, and the Internal
Revenue Service is not precluded from asserting a contrary position.
Furthermore, no assurance can be given that future legislative, judicial or
administrative changes, on either a prospective or retroactive basis, would not
adversely affect the accuracy of the opinion expressed herein.  Nevertheless, we
undertake no responsibility to advise you of any new developments in the
application or interpretation of the federal income tax laws.

          2.  This opinion addresses only the specific tax opinion set forth
above, and does not address any other federal, state, local or foreign tax
consequences that may result from the Merger or any other transaction (including
any transaction undertaken in connection with the Merger).  In particular, we
express no opinion regarding, among other things:

          (i) whether and the extent to which any PSBP Shareholder who has
provided or will provide services to PSBP or PSI will have compensation income
under any provision of the Code and the effects of such compensation income,
including but not limited to the effect upon the basis and holding period of the
PSI Common Stock received by any such shareholder in the Merger;

          (ii) the potential application of the "golden parachute" provisions
(Sections 280G, 3121(v)(2) and 4999) of the Code, the alternative minimum tax
provisions (Sections 55, 56 and 57) of the Code or Sections 305, 306, 357, and
708 of the Code, or the regulations promulgated thereunder;

          (iii) the tax consequences of the Merger to PSBP or PSI, including
without limitation the recognition of any gain after application of any
provision of the Code, as well as the regulations promulgated thereunder and
judicial interpretations thereof;
<PAGE>
 
PS Business Parks, Inc.
January 30, 1996
Page 4


          (iv) the basis of any equity interest in PSBP acquired by PSI in the
Merger; and

          (v) the tax consequences of the Merger (including the opinion set
forth above) as applied to specific PSBP Shareholders and/or holders of options
or warrants for PSBP stock or that may be relevant to particular classes of PSBP
Shareholders and/or holders of options or warrants for PSBP stock, including but
not limited to dealers in securities, corporate shareholders subject to the
alternative minimum tax, foreign persons, and holders of shares acquired upon
exercise of stock options or in other compensatory transactions.

          3.  No opinion is expressed as to any transaction other than the
Merger as described in the Merger Agreement or to any transaction whatsoever,
including the Merger, if all the transactions described in the Merger Agreement
are not consummated in accordance with the terms of such Merger Agreement and
without waiver or breach of any material provision thereof or if all of the
representations, warranties, statements and assumptions upon which we relied are
not true and accurate at all relevant times.  In the event any one of the
statements, representations, warranties or assumptions upon which we have relied
to issue this opinion is incorrect, our opinion might be adversely affected and
may not be relied upon.

          4.  This opinion is intended solely for the purposes set forth in
Section 7.1.7 of the Merger Agreement; it may not be relied upon for any other
purpose or by any other person or entity, and may not be made available to any
other person or entity without our prior written consent.

          We hereby consent to the filing of this opinion letter as Exhibit 8.2
to the Registration Statement and to the reference to this firm under the
captions "Legal Opinions" and "Certain Federal Income Tax Matters" in the Joint
Proxy Statement and Prospectus.  In giving the consent, we do not thereby admit
that we are an "expert" within the meaning of the Securities Act of 1933, as
amended.

                              Very truly yours,

                              /s/ HOGAN & HARTSON L.L.P.

                              HOGAN & HARTSON L.L.P.

<PAGE>
 
                                                                    Exhibit 23.1


                        CONSENT OF INDEPENDENT AUDITORS


We consent to the reference to our firm under the caption "Experts" in the
Registration Statement on Form S-4 (No. 333-        ) with respect to Public
Storage, Inc.'s (formerly Storage Equities, Inc.) registration of common stock
and in the related Joint Proxy Statement and Prospectus of Public Storage, Inc.,
Public Storage Properties IX, Inc. and PS Business Parks, Inc. and to the
incorporation by reference therein of our report dated February 7, 1995, except
for Note 13, for which the date is March 13, 1995 with respect to the
consolidated financial statements and schedules of Storage Equities, Inc. in its
Annual Report on Form 10-K, as amended by a Form 10-K/A (Amendment No. 2) dated
April 27, 1995 for the year ended December 31, 1994 filed with the Securities
and Exchange Commission, to the use of our report dated February 24, 1995 with
respect to the financial statements and schedules of Public Storage Properties
IX, Inc. included in the Registration Statement and Joint Proxy Statement and
Prospectus, and to the use of our report dated February 24, 1995 with respect to
the financial statements and schedules of PS Business Parks, Inc. included in
the Registration Statement and Joint Proxy Statement and Prospectus.

     We also consent to the incorporation by reference of the following:  (i)
our report dated February 24, 1995 with respect to the financial statements of
Public Storage Properties VII, Inc. which is included in the Registration
Statement on Form S-4 (No. 33-58893) of Storage Equities, Inc., (ii) our report
dated July 10, 1995 on the combined statements of assets, liabilities and
deficit of the property management and advisory businesses of Public Storage,
Inc. as of December 31, 1994 and 1993 and the related combined statements of
operations and cash flows for each of the three years in the period ended
December 31, 1994, and our report dated July 10, 1995 on the combined summaries
of historical information relating to real estate interests to be acquired for
each of the three years in the period ended December 31, 1994 which are included
in the Current Report on Form 8-K, as amended by a Form 8-K/A, each dated June
30, 1995, of Storage Equities, Inc., (iii) our report dated October 6, 1995 on
the combined statements of assets, liabilities and equity of the property
management and advisory businesses and real estate assets of Public Storage,
Inc. as of December 31, 1994 and 1993 and the related combined statements of
operations and cash flows for each of the three years in the period ended
December 31, 1994 which are included in the Current Report on Form 8-K dated
November 16, 1995, of Public Storage, Inc., each of which is incorporated by
reference in the Registration Statement on Form S-4 (No. 333-________) and
related Joint Proxy Statement and Prospectus.



                                               ERNST & YOUNG LLP


Los Angeles, California
January 30, 1996

<PAGE>
 
                                                                    Exhibit 23.4


                Consent of Charles R. Wilson & Associates, Inc.

          We hereby consent to the references to our firm under "The Mergers --
Real Estate Portfolio Appraisals by Wilson" in the Joint Proxy Statement and
Prospectus which is a part of this Registration Statement and to the other
references to our firm therein.

                                           Charles R. Wilson & Associates, Inc.

January 30, 1996
Pasadena, California

<PAGE>
 
                       PUBLIC STORAGE PROPERTIES IX, INC.
                      600 North Brand Boulevard, Suite 300
                        Glendale, California 91203-1241

          This Proxy is Solicited on Behalf of the Board of Directors

   The undersigned hereby appoints B. Wayne Hughes and Harvey Lenkin, or either
of them, with power of substitution, as Proxies, to appear and vote, as
designated below, all the shares of Common Stock Series A of Public Storage
Properties IX, Inc. ("PSP9") held of record by the undersigned on
_______________, 1996, at the Special Meeting of Shareholders to be held on
_______________, 1996, and any adjournments thereof.

   In their discretion, the Proxies are authorized to vote upon such other
business as may properly come before the meeting.

   THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED IN THE MANNER DIRECTED.
IN THE ABSENCE OF ANY DIRECTION, THE SHARES WILL BE VOTED FOR THE PROPOSED
MERGER AND THE PROPOSED AMENDMENT TO BYLAWS.


[x]  Please mark votes as in this example.

 1.  PROPOSED MERGER.  To consider and vote upon the merger (the "PSP9 Merger") 
     of PSP9 with and into Public Storage, Inc. ("PSI") pursuant to an Agreement
     and Plan of Reorganization among PSI, PSP9 and PS Business Parks, Inc.
     described in the accompanying Joint Proxy Statement and Prospectus.

        [_] FOR                   [_] AGAINST                [_] ABSTAIN

 2.  PROPOSED AMENDMENT TO BYLAWS.  To consider and vote upon a related 
     amendment to PSP9's bylaws to authorize the PSP9 Merger in the form of
     Appendix E-1 to the accompanying Joint Proxy Statement and Prospectus.

        [_] FOR                   [_] AGAINST                [_] ABSTAIN

 3.  Other matters:  In their discretion, the Proxies are authorized to vote 
     upon such other business as may properly come before the meeting.

 The undersigned acknowledges receipt of the Notice of Special Meeting of
 Shareholders and Joint Proxy Statement and Prospectus dated _______________,
 1996.

 PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD IN THE ENCLOSED ENVELOPE TO
 AMERICAN STOCK TRANSFER & TRUST COMPANY, 40 WALL STREET, 46TH FLOOR, NEW YORK,
 NEW YORK 10005.

                                        Dated:  ____________________, 1996


                                        ______________________________________
                                                      Signature

                                        ______________________________________
                                              Signature if held jointly

                                        Please sign exactly as your name
                                        appears.  Joint owners should each sign.
                                        Trustees and others acting in a
                                        representative capacity should indicate
                                        the capacity in which they sign.

                                 Exhibit 99.1

<PAGE>
 
                            PS BUSINESS PARKS, INC.
                      600 North Brand Boulevard, Suite 300
                        Glendale, California 91203-1241

          This Proxy is Solicited on Behalf of the Board of Directors

   The undersigned hereby appoints B. Wayne Hughes and Harvey Lenkin, or either
of them, with power of substitution, as Proxies, to appear and vote, as
designated below, all the shares of Common Stock Series A of PS Business Parks,
Inc. ("PSBP") held of record by the undersigned on _______________, 1996, at the
Special Meeting of Shareholders to be held on _______________, 1996, and any
adjournments thereof.

   In their discretion, the Proxies are authorized to vote upon such other
business as may properly come before the meeting.

   THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED IN THE MANNER DIRECTED.
IN THE ABSENCE OF ANY DIRECTION, THE SHARES WILL BE VOTED FOR THE PROPOSED
MERGER AND THE PROPOSED AMENDMENT TO BYLAWS.

                     
[x] Please mark votes as in this example.

 1. PROPOSED MERGER.  To consider and vote upon the merger (the "PSBP Merger")
    of PSBP with and into Public Storage, Inc. ("PSI") pursuant to an Agreement
    and Plan of Reorganization among PSI, PSBP and Public Storage Properties IX,
    Inc. described in the accompanying Joint Proxy Statement and Prospectus.

       [_]  FOR                    [_]  AGAINST            [_]  ABSTAIN

 2. PROPOSED AMENDMENT TO BYLAWS.  To consider and vote upon a related amendment
    to PSBP's bylaws to authorize the PSBP Merger in the form of Appendix E-2 to
    the accompanying Joint Proxy Statement and Prospectus.

       [_]  FOR                    [_]  AGAINST            [_]  ABSTAIN

 3. Other matters:  In their discretion, the Proxies are authorized to vote upon
    such other business as may properly come before the meeting.

The undersigned acknowledges receipt of the Notice of Special Meeting of
Shareholders and Joint Proxy Statement and Prospectus dated _______________,
1996.

PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD IN THE ENCLOSED ENVELOPE TO
AMERICAN STOCK TRANSFER & TRUST COMPANY, 40 WALL STREET, 46TH FLOOR, NEW YORK,
NEW YORK 10005.

                                        Dated:  ____________________, 1996


                                        ______________________________________
                                                      Signature

                                        ______________________________________
                                              Signature if held jointly

                                     Please sign exactly as your name appears.
                                     Joint owners should each sign.  Trustees
                                     and others acting in a representative
                                     capacity should indicate the capacity in
                                     which they sign.

                                 Exhibit 99.2

<PAGE>
 
                                                                    Exhibit 99.3

                               CASH ELECTION FORM
        TO ACCOMPANY CERTIFICATES REPRESENTING SHARES OF COMMON STOCK OF
                       PUBLIC STORAGE PROPERTIES IX, INC.


  Please read and follow carefully the instructions set forth below, which set
forth the requirements that need to be complied with in order to make an
effective election.  Nominees, trustees or other persons who hold shares of
Public Storage Properties IX, Inc. ("PSP9") Common Stock Series A, par value
$.01 per share ("PSP9 Common Stock"), in a representative capacity are directed
to Instruction F(4).

  TO BE EFFECTIVE, THIS CASH ELECTION FORM, PROPERLY COMPLETED AND SIGNED IN
ACCORDANCE WITH THE ACCOMPANYING INSTRUCTIONS, TOGETHER WITH CERTIFICATES FOR
THE PSP9 COMMON STOCK COVERED HEREBY (UNLESS DELIVERY IS GUARANTEED IN BOX E
BELOW IN ACCORDANCE WITH INSTRUCTION A), MUST BE RECEIVED BY THE AMERICAN STOCK
TRANSFER & TRUST COMPANY (THE "DEPOSITARY") NAMED BELOW, AT THE APPROPRIATE
ADDRESS SET FORTH BELOW, NO LATER THAN THE ELECTION DEADLINE (AS DEFINED IN
INSTRUCTION A).  DELIVERIES MADE TO ADDRESSES OTHER THAN THE ADDRESS FOR THE
DEPOSITARY SET FORTH BELOW DO NOT CONSTITUTE VALID DELIVERIES AND THE DEPOSITARY
WILL NOT BE RESPONSIBLE THEREFOR.

  HOLDERS OF PSP9 COMMON STOCK WHO INTEND TO RECEIVE PUBLIC STORAGE, INC.
("PSI") COMMON STOCK IN THE PSP9 MERGER SHOULD NOT SUBMIT THIS CASH ELECTION
FORM AND SHOULD NOT SUBMIT THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE
RECEIVED THE LETTER OF TRANSMITTAL AND INSTRUCTIONS FROM THE FIRST NATIONAL BANK
OF BOSTON (THE "EXCHANGE AGENT") WHICH WILL BE MAILED AFTER THE CONSUMMATION OF
THE PSP9 MERGER.

  This Cash Election Form is to be executed and returned to the Depositary at
the following address:


 By Mail, Hand or Overnight Courier or
    for Duplicate Copies of Material                For Information       
                                                                     
American Stock Transfer & Trust Company  Shareholder Communications Corporation
    Attn:  Reorganization Department         (800) 733-8481, extension 421
       40 Wall Street, 46th Floor                         
           New York, NY 10005                             
             (800) 937-5449                                

  Delivery of this instrument to an address other than as set forth above will
not constitute a valid delivery.  The accompanying instructions should be read
carefully before this Cash Election Form is completed.


              PLEASE READ CAREFULLY THE ACCOMPANYING INSTRUCTIONS


Ladies and Gentlemen:

  This Cash Election Form is being delivered in connection with the merger (the
"PSP9 Merger") of PSP9 with and into Public Storage, Inc. ("PSI"), pursuant to
the Agreement and Plan of Reorganization dated as of December 13, 1995, among
PSI, PSP9 and PS Business Parks, Inc. (the "Merger Agreement").

  The undersigned, subject to the Election and Allocation Procedures (as defined
below) and the other terms and conditions set forth in this Cash Election Form,
including the documents incorporated herein by reference, hereby (a) surrenders
the certificate(s) (the "Certificates") representing the shares of PSP9 Common
Stock listed in Box A (Certificate Information) and (b) elects (an "Election"),
as indicated below, upon consummation of the PSP9 Merger to have each of the
shares of PSP9 Common Stock represented by the Certificates converted into the
right to receive $18.64 in cash (subject to adjustment as described in the
Merger Agreement), without interest (a "Cash Election").

  If the Depositary has not received your properly completed Cash Election Form,
accompanied by your stock Certificates, by the Election Deadline (as defined in
Instruction A) (unless Box E (Guaranty of Delivery) has been properly completed
and such Certificates are received by the Depositary by the Guaranteed Delivery
Deadline), you will receive PSI Common Stock in the PSP9 Merger.

  The undersigned hereby certifies that this Election covers all of the shares
of PSP9 Common Stock registered in the name of the undersigned and either (i)
beneficially owned by the undersigned, or (ii) owned by the undersigned in a
representative or fiduciary capacity for a particular beneficial owner or for
one or more beneficial owners, except as otherwise permitted pursuant to
Instruction F(4).  A PSP9 Shareholder may not make a cash election as to less
than all of the shares of PSP9 Common Stock beneficially owned by such
shareholder.

  This Election is subject to the terms and conditions set forth in the Merger
Agreement and the Joint Proxy Statement and Prospectus, dated January ___, 1996
(the "Joint Proxy Statement and Prospectus"), furnished to shareholders of PSP9,
in connection with the PSP9 Merger, all of which are incorporated herein by
reference.  Receipt of the Joint Proxy Statement and Prospectus, including the
Merger Agreement attached as Appendix A thereto, is hereby acknowledged.  Copies
of the Joint Proxy Statement and Prospectus are available from the Depositary
upon request (see Instruction G(10)).

  It is understood that because pursuant to the Merger Agreement the number of
shares of PSP9 Common Stock to be converted into the right to receive cash in
the PSP9 Merger are subject to limitations, no assurance can be given that an
Election by any given shareholder, including this Election by the undersigned,
can be accommodated.  Rather, the Election by each holder of PSP9 Common Stock,
including this Election by the undersigned, will be subject to the results of
the election and allocation procedures set forth in the Merger Agreement and
described in the Joint Proxy Statement and Prospectus (the "Election and
Allocation Procedures").

                                       1
<PAGE>
 
                                  INSTRUCTIONS

          The Execution Section of this Cash Election Form should be properly 
filled in, dated and signed, torn off and delivered, together with all stock
Certificates representing PSP9 Common Stock currently held by you (unless
delivery is guaranteed in Box E in accordance with Instruction A), to the
Depositary at the appropriate address set forth on the front of this Cash
Election Form. Please read and follow carefully the instructions regarding
completion of this Cash Election Form set forth below. If you have any questions
concerning this Cash Election Form or require any information or assistance, see
Instruction G(1).

          HOLDERS OF PSP9 COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK 
IN THE PSP9 MERGER SHOULD NOT SUBMIT THIS CASH ELECTION FORM AND SHOULD NOT
SUBMIT THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER
OF TRANSMITTAL AND INSTRUCTIONS FROM THE EXCHANGE AGENT WHICH WILL BE MAILED
AFTER THE CONSUMMATION OF THE PSP9 MERGER.

A.   TIME IN WHICH TO ELECT

          In order for an Election to be effective, the Depositary must receive 
a properly completed Cash Election Form, accompanied by all stock Certificates
representing PSP9 Common Stock currently held by you, NO LATER THAN 5:00 P.M.,
NEW YORK CITY TIME, ON THE LAST BUSINESS DAY BEFORE THE DAY OF THE MEETING OF
SHAREHOLDERS OF PSP9 (the "Election Deadline").  If all other conditions set
forth in the Merger Agreement have been met or, if permissible, waived, the
effective time of the PSP9 Merger (the "Effective Time") could occur on the same
day approval of the PSP9 Merger by shareholders of PSP9 is obtained.  THUS,
SHAREHOLDERS ARE URGED TO DELIVER A PROPERLY COMPLETED CASH ELECTION FORM,
ACCOMPANIED BY STOCK CERTIFICATES (OR A PROPER GUARANTY OF DELIVERY, AS
DESCRIBED BELOW), NO LATER THAN 5:00 P.M., NEW YORK CITY TIME, ON
_______________, 1996, IN ORDER TO ASSURE THAT THEIR CASH ELECTION FORM WILL BE
RECEIVED BY THE ELECTION DEADLINE.  As soon as the date on which the effective
time of the PSP9 Merger is anticipated to occur is determined, PSP9 and PSI will
publicly announce such date, although no assurance can be given that the
Effective Time will occur on such date.  Persons whose stock Certificates are
not immediately available may also make an Election by completing this Cash
Election Form and having Box E (Guaranty of Delivery) properly completed and
duly executed by a member of a registered national securities exchange or of the
National Association of Securities Dealers, Inc. or a commercial bank or trust
company having an office or correspondent in the United States (subject to the
condition that the Certificates, the delivery of which is thereby guaranteed,
are in fact delivered to the Depositary no later than 5:00 p.m., New York City
Time, on the fifth business day after the Election Deadline (the "Guaranteed
Delivery Deadline")).

          IF THE DEPOSITARY HAS NOT RECEIVED YOUR PROPERLY COMPLETED CASH 
ELECTION FORM, ACCOMPANIED BY YOUR STOCK CERTIFICATES, BY THE ELECTION DEADLINE
(UNLESS BOX E (GUARANTY OF DELIVERY) HAS BEEN PROPERLY COMPLETED AND SUCH
CERTIFICATES ARE RECEIVED BY THE DEPOSITARY BY THE GUARANTEED DELIVERY
DEADLINE), YOU WILL RECEIVE PSI COMMON STOCK IN THE PSP9 MERGER.

          For instructions regarding changes or revocations of Elections and 
the time in which such changes or revocations can be made, see Instructions 
F(1) and F(2) below.

B.   ELECTIONS

          This Cash Election Form provides for your Election, subject to the 
Election and Allocation Procedures and the other terms and conditions set forth
hereunder and in the documents incorporated herein by reference, upon
consummation of the PSP9 Merger to have each of the shares of PSP9 Common Stock
covered by this Cash Election Form converted into the right to receive $18.64 in
cash (subject to adjustment as described in the Merger Agreement), without
interest (a "Cash Election").

          You should understand that your Election is subject to certain terms 
and conditions that are set forth in the Merger Agreement and described in the
Joint Proxy Statement and Prospectus. The Merger Agreement is included as
Appendix A to the Joint Proxy Statement and Prospectus. Copies of the Joint
Proxy Statement and Prospectus may be requested from the Depositary at the
address and telephone number set forth on the first page of this Cash Election
Form (see Instruction G(10)). The delivery of this Cash Election Form to the
Depositary constitutes acknowledgement of the receipt of the Joint Proxy
Statement and Prospectus. EACH HOLDER OF PSP9 COMMON STOCK IS STRONGLY
ENCOURAGED TO READ THE JOINT PROXY STATEMENT AND PROSPECTUS IN ITS ENTIRETY AND
TO DISCUSS THE CONTENTS THEREOF, THE PSP9 MERGER AND THIS CASH ELECTION FORM
WITH HIS OR HER PERSONAL FINANCIAL AND TAX ADVISORS PRIOR TO DECIDING WHETHER TO
ELECT CASH. THE TAX CONSEQUENCES TO A HOLDER OF PSP9 COMMON STOCK WILL VARY
DEPENDING UPON A NUMBER OF FACTORS. FOR CERTAIN INFORMATION REGARDING THE
FEDERAL INCOME TAX CONSEQUENCES OF AN ELECTION, SEE "CERTAIN FEDERAL INCOME TAX
MATTERS -- THE MERGERS" IN THE JOINT PROXY STATEMENT AND PROSPECTUS.

C.   CASH ELECTION

          By completing and submitting the Cash Election Form, you are electing,
subject to the Election and Allocation Procedures and the other terms and
conditions set forth in this Cash Election Form, including the documents
incorporated herein by reference, to receive cash for all of the shares of PSP9
Common Stock covered by this Cash Election Form.

D.   RECEIPT OF PSI COMMON STOCK

          HOLDERS OF PSP9 COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK
IN THE PSP9 MERGER SHOULD NOT SUBMIT THIS CASH ELECTION FORM AND SHOULD NOT
SUBMIT THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER
OF TRANSMITTAL AND INSTRUCTIONS FROM THE EXCHANGE AGENT WHICH WILL BE MAILED
AFTER THE CONSUMMATION OF THE PSP9 MERGER.

E.   FAILURE TO MAKE EFFECTIVE CASH ELECTION

          If you have failed to make an effective Cash Election, or if your 
Election is deemed by the Depositary or PSI to be defective in any way, or if
your Cash Election Form is not accompanied by your Certificates (unless Box E
(Guaranty of Delivery) has been properly completed and such Certificates are
received by the Depositary by the Guaranteed Delivery Deadline), you will
receive PSI Common Stock in the PSP9 Merger.

F.   SPECIAL CONDITIONS

     (1)  Revocation of Election.  An election may be revoked by the person or
persons making such election by a written notice signed and dated by such person
or persons and received by the Depositary prior to the Election Deadline,
identifying the name of the registered holder of the PSP9 Common Stock subject
to such Election and the serial numbers shown on the Certificates representing
such PSP9 Common Stock.  Any person or persons who have effectively revoked an
Election may, by a signed and dated written

                                       2
<PAGE>
 
notice to the Depositary, request the return of the stock Certificates submitted
to the Depositary and such Certificates will be returned to such person or
persons (at the shareholder's risk) within five business days of receipt of such
request.

     (2)  Nullification of Election.  All Cash Election Forms will be void and 
of no effect if the PSP9 Merger is not consummated, and Certificates submitted
therewith shall be promptly returned to the persons submitting the same.

     (3)  Elections Subject to Allocation.  All Elections are subject to the
Election and Allocation Procedures set forth in the Merger Agreement and
described in the Joint Proxy Statement and Prospectus under the caption "The
Mergers -- General" and to the other terms and conditions set forth thereunder
and hereunder, including the documents incorporated herein by reference.

     (4)  Shares Held by Nominees, Trustees or other Representatives.  Holders 
of record of shares of PSP9 Common Stock who hold such shares as nominees,
trustees or in other representative or fiduciary capacities (a "Representative")
may submit one or more Cash Election Forms covering the aggregate number of
shares of PSP9 Common Stock held by such Representative for the beneficial
owners for whom the Representative is making an Election, provided, that such
Representative certifies that each such Cash Election Form covers all the shares
of PSP9 Common Stock held by such Representative for a particular beneficial
owner. Any Representative who makes an Election or a Non-Election may be
required to provide the Depositary with such documents and/or additional
certifications, if requested, in order to satisfy the Depositary that such
Representative holds such shares of PSP9 Common Stock for a particular
beneficial owner of such shares. If any shares held by a Representative are not
covered by an effective Cash Election Form, they will be exchanged for PSI
Common Stock.

G.  GENERAL

     (1)  Execution and Delivery.  In order to make an effective Election, you 
must correctly fill in the Execution Section of this Cash Election Form.  After
dating and signing it, you are responsible for its delivery, accompanied by all
stock Certificates representing PSP9 Common Stock currently held by you or a
proper Guaranty of Delivery of such stock Certificates pursuant to Instruction
A, to the Depositary at the address set forth on the front of this Cash Election
Form by the Election Deadline.  YOU MAY CHOOSE ANY METHOD TO DELIVER THIS CASH
ELECTION FORM; HOWEVER, YOU ASSUME ALL RISK OF NON-DELIVERY.  IF YOU CHOOSE TO
USE THE MAIL, WE RECOMMEND THAT YOU USE REGISTERED MAIL, RETURN RECEIPT
REQUESTED, AND THAT YOU PROPERLY INSURE ALL STOCK CERTIFICATES.  DELIVERY OF
STOCK CERTIFICATES WILL BE DEEMED EFFECTIVE AND RISK OF LOSS WITH RESPECT TO
SUCH CERTIFICATES SHALL PASS ONLY WHEN SUCH CERTIFICATES ARE ACTUALLY RECEIVED
BY THE DEPOSITARY.

     (2)  Signatures.  Except as otherwise permitted below, you must sign this 
Cash Election Form exactly the way your name appears on the face of your
Certificates.  If the shares are owned by two or more persons, each must sign
exactly as his or her name appears on the face of the Certificates.  If shares
of PSP9 Common Stock have been assigned by the registered owner, this Cash
Election Form should be signed in exactly the same way as the name of the
assignee appearing on the Certificates or transfer documents.  See Instructions
G(5)(a) and G(5)(b).

     (3)  Notice of Defects; Resolution of Disputes.  None of PSP9, PSI and the
Depositary will be under any obligation to notify you or anyone else that the
Depositary has not received a properly completed Cash Election Form or that any
Cash Election Form submitted is defective in any way.

          Any and all disputes with respect to Cash Election Forms or to 
Elections made in respect of PSP9 Common Stock (including but not limited to
matters relating to the Election Deadline, time limits, defects or
irregularities in the surrender of any stock Certificate, effectiveness of any
Elections and computations of allocations) will be resolved by PSI and its
decision will be conclusive and binding on all concerned. PSI may delegate this
function to the Depositary in whole or in part. PSI or the Depositary shall have
the absolute right in its sole discretion to reject any and all Cash Election
Forms and surrenders of stock Certificates which are deemed by either of them to
be not in proper form or to waive any immaterial irregularities in any Cash
Election Form or in the surrender of any stock Certificate. Surrenders of stock
Certificates will not be deemed to have been made until all defects or
irregularities that have not been waived have been cured.

     (4)  Issuance of Payment Check(s).  If the Payment Check(s) are to be 
issued in the name of the registered holder(s) as inscribed on the surrendered
Certificate(s), no guarantee of the signature on the Cash Election Form is
required.  For corrections in name and change in name not involving changes in
ownership, see Instruction G(5)(c).

     (5)  Issuance of Payment Check(s) in Different Names.  If the Payment 
Check(s) are to be issued in the name of someone other than the registered
holder(s) of the surrendered Certificate(s), you must follow the guidelines
below. Note that in each circumstance listed below, shareholder(s) must have
signature(s) guaranteed in Box C and complete Box F.

          (a)  Endorsement and Guarantee.  The Certificate(s) surrendered must 
be properly endorsed (or accompanied by appropriate stock powers properly
executed) by the registered holder(s) of such Certificate(s) to the person who
is to receive the Payment Check(s). The signature(s) of the registered holder(s)
on the endorsement or stock powers must correspond with the name(s) written upon
the face of the Certificate(s) in every particular and must be medallion
guaranteed by an eligible guarantor institution as defined below.

                  DEFINITION OF ELIGIBLE GUARANTOR INSTITUTION

          Generally an eligible guarantor institution, as defined in Rule 
17Ad-15 of the regulations of the Securities and Exchange Commission, means:

          (i)   Banks (as that term is defined in Section 3(a) of the Federal 
     Deposit Insurance Act);

          (ii)  Brokers, dealers, municipal securities dealers, municipal 
     securities brokers, government securities dealers, and government 
     securities brokers, as those terms are defined under the Securities 
     Exchange Act of 1934;

          (iii) Credit unions (as that term is defined in Section 19(b)(1)(A) 
     of the Federal Reserve Act);

          (iv)  National securities exchanges, registered securities 
     associations, clearing agencies, as those terms are used under the 
     Securities Exchange Act of 1934; and

          (v)   Savings associations (as that term is defined in Section 3(b) 
     of the Federal Deposit Insurance Act).

                                       3
<PAGE>
 
      (b) Transferee's Signature.  The Cash Election Form must be signed by the
  transferee or assignee or his or her agent, and should not be signed by the
  transferor or assignor.  See Box B (Sign Here).  The signature of such
  transferee or assignee must be medallion guaranteed by an eligible guarantor
  institution as provided in Instruction G(5)(a).

      (c) Correction of or Change in Name. For a correction of name or for a
  change in name which does not involve a change in ownership, proceed as
  follows. For a change in name by marriage, etc., the Cash Election Form should
  be signed, e.g., "Mary Doe, now by marriage Mary Jones." For a correction in
  name, the Cash Election Form should be signed, e.g., "James E. Brown,
  incorrectly inscribed as J.E. Brown." The signature in each case should be
  guaranteed in the manner described in Instruction G(5)(a) above and Box F
  should be completed.

      You should consult your own tax advisor as to any possible tax
  consequences resulting from the issuance of Payment Check(s) in a name
  different from that of the registered holder(s) of the surrendered
  Certificate(s).

  (6) Supporting Evidence.  In case any Cash Election Form, certificate
endorsement or stock power is executed by an agent, attorney, administrator,
executor, guardian, trustee or any person in any other fiduciary or
representative capacity, or by an officer of a corporation on behalf of the
corporation, there must be submitted (with the Cash Election Form, surrendered
Certificate(s), and/or stock powers) documentary evidence of appointment and
authority to act in such capacity (including court orders and corporate
resolutions when necessary), as well as evidence of the authority of the person
making such execution to assign, sell or transfer the Certificate(s).  Such
documentary evidence of authority must be in form satisfactory to the
Depositary.

  (7) Special Mailing Instructions.  The Payment Check(s) will be mailed to the
address of the registered holder(s) as indicated in Box A (Certificate
Information), unless instructions to the contrary are given in Box G (Special
Mailing Instructions).

  (8) Lost Certificates.  If you are not able to locate your Certificate(s)
representing PSP9 Common Stock, you should contact American Stock Transfer &
Trust Company, PSP9's transfer agent, at (800) 937-5449.  In such event, the
transfer agent will forward additional documentation which the shareholder must
complete in order to effectively surrender such lost or destroyed
Certificate(s).  There will be a cost to replace lost Certificates.

  (9) Federal Income Tax Withholding.  Under Federal income tax law, the
Depositary is required to file a report with the Internal Revenue Service
disclosing any payments of cash being made to each holder of Certificates
formerly representing shares of PSP9 Common Stock pursuant to the Merger
Agreement.  In order to avoid backup withholding of Federal income tax on any
cash received upon the surrender of Certificate(s), a holder thereof must,
unless an exemption applies, provide the Depositary with his or her correct
taxpayer identification number ("TIN") on Substitute Form W-9, which is part of
this Cash Election Form (Box D), and certify, under penalties of perjury, that
such number is correct and that such holder is not otherwise subject to backup
withholding.  If the correct TIN and certifications are not provided, a $50
penalty may be imposed by the Internal Revenue Service and payments made for
surrender of Certificate(s) may be subject to backup withholding of 31%.  In
addition, if a holder makes a false statement that results in no imposition of
backup withholding, and there was no reasonable basis for making such a
statement, a $500 penalty may also be imposed by the Internal Revenue Service.

      Backup withholding is not an additional Federal income tax.  Rather, the
Federal income tax liability of a person subject to backup withholding will be
reduced by the amount of such tax withheld.  If backup withholding results in an
overpayment of income taxes, a refund may be obtained from the Internal Revenue
Service.

      The TIN that must be provided on the Substitute Form W-9 is that of the
registered holder(s) of the Certificate(s) at the effective time of the PSP9
Merger.  The TIN for an individual is his or her social security number.  The
box in Part II of the Substitute Form W-9 may be checked if the person
surrendering the Certificates has not been issued a TIN and has applied for a
TIN or intends to apply for a TIN in the near future.  If the box in Part II has
been checked, the person surrendering the Certificate(s) must also complete the
Certificate of Awaiting Taxpayer Identification Number below in order to avoid
backup withholding.  Notwithstanding that the box in Part II is checked (and the
Certificate of Awaiting Taxpayer Identification Number is completed), the
Depositary will withhold 31% on all cash payments with respect to surrendered
Certificate(s) made prior to the time it is provided with a properly certified
TIN.

      Exempt persons (including, among others, corporations) are not subject to
backup withholding.  A foreign individual may qualify as an exempt person by
submitting Form W-8 or a substitute Form W-8, signed under penalties of perjury,
certifying to such person's exempt status.  A form of such statement can be
obtained from the Depositary.  A Certificate holder should consult his or her
tax advisor as to such holder's qualification for an exemption from backup
withholding and the procedure for obtaining such exemption.

      The signature and date provided on the Substitute Form W-9 will serve to
certify that the TIN and withholding information provided in this Cash Election
Form are true, correct and complete.

 (10) Questions and Requests for Information or Assistance.  If you have any
questions or need assistance to complete this Cash Election Form, please contact
Shareholder Communications Corporation at (800) 733-8481, extension 421
(individual holders), or (212) 805-7000 (banks and brokers).  You may also
obtain additional copies of the Cash Election Form and the Joint Proxy Statement
and Prospectus from the Depositary at the addresses and telephone number set
forth on the first page of this Cash Election Form.

H.  DELIVERY OF PAYMENT CHECKS

      As soon as practicable after the PSP9 Merger becomes effective, the
Depositary will make the allocations of cash to be received by holders of PSP9
Common Stock or their designees in accordance with the Election and Allocation
Procedures.  The Depositary will thereafter issue and mail to you a check for
any cash to which you are entitled, provided you have delivered the required
Certificates for your PSP9 Common Stock in accordance with the terms and
conditions hereof, including the documents incorporated herein by reference.

      If you do not submit an effective Cash Election Form, the Exchange Agent
will forward to you, as soon as practicable after the PSP9 Merger becomes
effective, a Letter of Transmittal for you to use to send in your stock
Certificates for shares of PSP9 Common Stock, containing appropriate
instructions for surrendering such Certificates at that time.  After the
Exchange Agent receives your stock Certificates with a properly completed Letter
of Transmittal, it will issue and mail to you a certificate or certificates for
PSI Common Stock to which you are entitled (and, if applicable, a check in lieu
of a fractional share), provided you have delivered the required Certificates
for your PSP9 Common Stock in accordance with the terms and conditions of the
Letter of Transmittal, including the documents incorporated therein by
reference.

      DO NOT ENCLOSE YOUR PROXY CARD RELATING TO THE SPECIAL MEETING WITH THIS
CASH ELECTION FORM, YOUR PROXY CARD SHOULD BE RETURNED IN THE POSTAGE-PAID
ENVELOPE ENCLOSED WITH THE JOINT PROXY STATEMENT AND PROSPECTUS FOR THAT
PURPOSE.

                                       4
<PAGE>
 
                               CASH ELECTION FORM
                               EXECUTION SECTION
BOX A
- --------------------------------------------------------------------------------
                            CERTIFICATE INFORMATION
List below the certificates to which this Cash Election Form relates.  (Attach
 additional sheets if necessary.)
<TABLE> 
<CAPTION> 
                                                                                              Number of Shares
Name and Address of Registered Holder(s) as Shown on the Share Records                         Represented by
                         (Fill in, if Blank)                             Certificate Number    Each Certificate
- ----------------------------------------------------------------------   ------------------   ------------------
<S>                                                                      <C>                  <C>  
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
 
                                                                            Total Shares:     
                                                                                              ==================
</TABLE>
- --------------------------------------------------------------------------------

                        CERTIFICATE HOLDER(S) SIGN HERE

The undersigned hereby represents and warrants that the undersigned has full
power and authority to complete and deliver this Cash Election Form and to
deliver for surrender and cancellation the above-described Certificate(s)
delivered herewith and that the rights represented by the Certificate(s) are
free and clear of all liens, restrictions, charges and encumbrances and are not
subject to any adverse claim.  The undersigned will, upon request, execute any
additional documents necessary or desirable to complete the surrender of the
Certificate(s) surrendered herewith.  All authority herein conferred shall
survive the death or incapacity of the undersigned and all obligations of the
undersigned hereunder shall be binding upon the heirs, personal representatives,
successors and assigns of the undersigned.  Delivery of the Certificate(s) for
surrender and cancellation may be revoked only in accordance with Instruction
F(2).

BOX B
- --------------------------------------------------------------------------------
                                   SIGN HERE
To be completed by all person(s) surrendering certificates and executing this
 Cash Election Form.
 
 
Signature(s):
             -------------------------------------------------------------------

             -------------------------------------------------------------------
Date:                                Telephone Number: 
             ----------------------                    -------------------------
 
 Must be signed by registered holder(s) exactly as name(s) appear(s) on stock
 Certificate(s) or by person(s) authorized to become registered holders by
 documents transmitted herewith.  If signature is by a trustee, executor,
 administrator, guardian, attorney-in-fact, officer of a corporation or in any
 other fiduciary or representative capacity, please provide the following
 information.  (See Instruction G(6)).
 
Name(s):
             -------------------------------------------------------------------

             -------------------------------------------------------------------
 
 
Capacity 
(Full Title):
             -------------------------------------------------------------------

Address:
             -------------------------------------------------------------------

             -------------------------------------------------------------------
- --------------------------------------------------------------------------------

BOX C
- --------------------------------------------------------------------------------
                              SIGNATURE GUARANTEE
 To be completed only if required by Instruction G(5).  Your signature must be
 MEDALLION GUARANTEED by an eligible financial institution.  Note:  a
 notarization by a notary public is not acceptable.
 
  FOR USE BY FINANCIAL INSTITUTION ONLY.  PLACE MEDALLION GUARANTEE IN SPACE
                                    BELOW.
 
 
 
 
- --------------------------------------------------------------------------------
 
                                      E-1
<PAGE>
 
                              CASH ELECTION FORM
                         EXECUTION SECTION (CONTINUED)

                           IMPORTANT TAX INFORMATION

PLEASE PROVIDE YOUR SOCIAL SECURITY OR OTHER TAXPAYER IDENTIFICATION NUMBER ON
THIS SUBSTITUTE FORM W-9 AND CERTIFY THAT YOU ARE NOT SUBJECT TO BACKUP
WITHHOLDING.  FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP
WITHHOLDING OF 31% OF ANY CASH PAYMENTS MADE TO YOU PURSUANT TO THE PSP9 MERGER.
IF THE BOX IN PART 3 OF THE SUBSTITUTE FORM W-9 IS CHECKED, THE "CERTIFICATE OF
AWAITING TAXPAYER IDENTIFICATION NUMBER" BELOW MUST BE COMPLETED.

BOX D
<TABLE> 
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                        <C> 
 
                             Part 1 - PLEASE PROVIDE YOUR TIN IN                            Social Security Number or
                             THE BOX AT RIGHT AND CERTIFY BY                              Employer Identification Number
SUBSTITUTE                   SIGNING AND DATING BELOW.                                    _______________________________
                           ---------------------------------------------------------------------------------------------------------

Form W-9                     Part 2 - Check the box if you are not subject to backup withholding because (1) you have not been   
                             notified that you are subject to backup withholding as a result of failure to report all interest or 
Department of the Treasury   dividends or (2) the Internal Revenue Service has notified you that you are no longer subject to backup
Internal Revenue Service     withholding. [_]                                                                                       

                           ---------------------------------------------------------------------------------------------------------

Payer's Request for          Certification - Under penalties of perjury, I certify that the information          Part 3 -        
 Taxpayer Identification     provided on this form is true, correct and complete.                                                
 Number (TIN)                                                                                                    Awaiting TIN  [_]
                                                                                                               ---------------------

Signature:                                                     Date:
          ----------------------------------------------------      ------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE> 
- --------------------------------------------------------------------------------
 
            CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

 I certify under penalties of perjury that a taxpayer identification number has
 not been issued to me, and either (a) I have mailed or delivered an
 application to receive a taxpayer identification number to the appropriate
 Internal Revenue Service Center or Social Security Administration Office or
 (b) I intend to mail or deliver an application in the near future.  I
 understand that if I do not provide a taxpayer identification number by the
 time of payment, 31% of any cash payment made to me will be withheld, but that
 such amount will be refunded to me if I then provide a Taxpayer Identification
 Number within sixty (60) days.

Signature:                        Date:
          -----------------------      ----------------------------------------
- --------------------------------------------------------------------------------
 
 BOX E
- --------------------------------------------------------------------------------
                             GUARANTY OF DELIVERY

 To be used only if Certificates are not surrendered herewith.  (See instruction
 A.)  The undersigned (check appropriate boxes below) guarantees to deliver to
 the Depositary at the appropriate address set forth above the Certificates for
 shares of PSP9 Common Stock submitted with this Cash Election Form no later
 than 5:00 p.m., New York City Time, on the fifth business day after the
 Election Deadline (as defined in Instruction A).
<TABLE> 
<S>                                                       <C>                  <C>  
[_]  A member of a registered national                    Firm:
     securities exchange                                                       -------------------------------------------------
                                                                                              
                                                          Authorized Signature:               
                                                                               --------------------------------------------------
                                                                                              
[_]  A member of the National Association                 Address:                            
     of Securities Dealers, Inc.                                               --------------------------------------------------
                                                                                              
                                                                               --------------------------------------------------
                                                                                              
[_]  A commercial bank or trust company                   Telephone Number:                   
     in the United States                                                      --------------------------------------------------
  
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE>

                    SPECIAL PAYMENT AND MAILING INSTRUCTIONS

The undersigned understands that the check issued as payment in cash (such
checks being referred to herein as "Payment Checks") with respect to the PSP9
Common Stock surrendered will be issued in the same name(s) as the
Certificate(s) surrendered and will be mailed to the address of the registered
holder(s) indicated above, unless otherwise indicated in Box F or Box G below.
If Box F is completed, the signature of the undersigned must be guaranteed as
set forth in Instruction G(5).

BOX F
- --------------------------------------------------------------------------------

                         SPECIAL PAYMENT INSTRUCTIONS

To be completed only if the Payment Check(s) is (are) to be issued in the
name(s) of someone other than the registered holder(s) set forth above.
Signature must be guaranteed.  (See Instruction G(5).)
 
Name:
                               -------------------------------------------------
                                                                                
Address:
                               -------------------------------------------------

Social Security Number or
Employer Identification Number:
                               -------------------------------------------------
                               
                               -------------------------------------------------
- --------------------------------------------------------------------------------

BOX G
- --------------------------------------------------------------------------------

                         SPECIAL MAILING INSTRUCTIONS

To be completed only if the Payment Check(s) is (are) to be issued to the
registered holder(s) and mailed to an address other than that of the registered
holder(s) set forth above. (See Instruction G(7).)
 
Address:
               ---------------------------------------------------------------

               ---------------------------------------------------------------
- --------------------------------------------------------------------------------

                                      E-2

<PAGE>
 
                                                                    Exhibit 99.4

                               CASH ELECTION FORM
        TO ACCOMPANY CERTIFICATES REPRESENTING SHARES OF COMMON STOCK OF
                            PS BUSINESS PARKS, INC.


    Please read and follow carefully the instructions set forth below, which set
forth the requirements that need to be complied with in order to make an
effective election.  Nominees, trustees or other persons who hold shares of PS
Business Parks, Inc. ("PSBP") Common Stock Series A, par value $.01 per share
("PSBP Common Stock"), in a representative capacity are directed to Instruction
F(4).

    TO BE EFFECTIVE, THIS CASH ELECTION FORM, PROPERLY COMPLETED AND SIGNED IN
ACCORDANCE WITH THE ACCOMPANYING INSTRUCTIONS, TOGETHER WITH CERTIFICATES FOR
THE PSBP COMMON STOCK COVERED HEREBY (UNLESS DELIVERY IS GUARANTEED IN BOX E
BELOW IN ACCORDANCE WITH INSTRUCTION A), MUST BE RECEIVED BY THE AMERICAN STOCK
TRANSFER & TRUST COMPANY (THE "DEPOSITARY") NAMED BELOW, AT THE APPROPRIATE
ADDRESS SET FORTH BELOW, NO LATER THAN THE ELECTION DEADLINE (AS DEFINED IN
INSTRUCTION A).  DELIVERIES MADE TO ADDRESSES OTHER THAN THE ADDRESS FOR THE
DEPOSITARY SET FORTH BELOW DO NOT CONSTITUTE VALID DELIVERIES AND THE DEPOSITARY
WILL NOT BE RESPONSIBLE THEREFOR.

    HOLDERS OF PSBP COMMON STOCK WHO INTEND TO RECEIVE PUBLIC STORAGE, INC.
("PSI") COMMON STOCK IN THE PSBP MERGER SHOULD NOT SUBMIT THIS CASH ELECTION
FORM AND SHOULD NOT SUBMIT THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE
RECEIVED THE LETTER OF TRANSMITTAL AND INSTRUCTIONS FROM THE FIRST NATIONAL BANK
OF BOSTON (THE "EXCHANGE AGENT") WHICH WILL BE MAILED AFTER THE CONSUMMATION OF
THE PSBP MERGER.

    This Cash Election Form is to be executed and returned to the Depositary at
the following address:

 By Mail, Hand or Overnight Courier or
    for Duplicate Copies of Material                 For Information           
                                                
American Stock Transfer & Trust Company   Shareholder Communications Corporation
    Attn:  Reorganization Department          (800) 733-8481, extension 421     
       40 Wall Street, 46th Floor
           New York, NY 10005
             (800) 937-5449

    Delivery of this instrument to an address other than as set forth above will
not constitute a valid delivery.  The accompanying instructions should be read
carefully before this Cash Election Form is completed.


              PLEASE READ CAREFULLY THE ACCOMPANYING INSTRUCTIONS


Ladies and Gentlemen:

    This Cash Election Form is being delivered in connection with the merger
(the "PSBP Merger") of PSBP with and into Public Storage, Inc. ("PSI"), pursuant
to the Agreement and Plan of Reorganization dated as of December 13, 1995, among
PSI, PSBP and Public Storage Properties IX, Inc. (the "Merger Agreement").

    The undersigned, subject to the Election and Allocation Procedures (as
defined below) and the other terms and conditions set forth in this Cash
Election Form, including the documents incorporated herein by reference, hereby
(a) surrenders the certificate(s) (the "Certificates") representing the shares
of PSBP Common Stock listed in Box A (Certificate Information) and (b) elects
(an "Election"), as indicated below, upon consummation of the PSBP Merger to
have each of the shares of PSBP Common Stock represented by the Certificates
converted into the right to receive $19.59 in cash (subject to adjustment as
described in the Merger Agreement), without interest (a "Cash Election").

    If the Depositary has not received your properly completed Cash Election
Form, accompanied by your stock Certificates, by the Election Deadline (as
defined in Instruction A) (unless Box E (Guaranty of Delivery) has been properly
completed and such Certificates are received by the Depositary by the Guaranteed
Delivery Deadline), you will receive PSI Common Stock in the PSBP Merger.

    The undersigned hereby certifies that this Election covers all of the shares
of PSBP Common Stock registered in the name of the undersigned and either (i)
beneficially owned by the undersigned, or (ii) owned by the undersigned in a
representative or fiduciary capacity for a particular beneficial owner or for
one or more beneficial owners, except as otherwise permitted pursuant to
Instruction F(4).  A PSBP Shareholder may not make a cash election as to less
than all of the shares of PSBP Common Stock beneficially owned by such
shareholder.

    This Election is subject to the terms and conditions set forth in the Merger
Agreement and the Joint Proxy Statement and Prospectus, dated January ___, 1996
(the "Joint Proxy Statement and Prospectus"), furnished to shareholders of PSBP,
in connection with the PSBP Merger, all of which are incorporated herein by
reference.  Receipt of the Joint Proxy Statement and Prospectus, including the
Merger Agreement attached as Appendix A thereto, is hereby acknowledged.  Copies
of the Joint Proxy Statement and Prospectus are available from the Depositary
upon request (see Instruction G(10)).

    It is understood that because pursuant to the Merger Agreement the number of
shares of PSBP Common Stock to be converted into the right to receive cash in
the PSBP Merger are subject to limitations, no assurance can be given that an
Election by any given shareholder, including this Election by the undersigned,
can be accommodated.  Rather, the Election by each holder of PSBP Common Stock,
including this Election by the undersigned, will be subject to the results of
the election and allocation procedures set forth in the Merger Agreement and
described in the Joint Proxy Statement and Prospectus (the "Election and
Allocation Procedures").

                                       1
<PAGE>
 
                                  INSTRUCTIONS

         The Execution Section of this Cash Election Form should be properly
filled in, dated and signed, torn off and delivered, together with all stock
Certificates representing PSBP Common Stock currently held by you (unless
delivery is guaranteed in Box E in accordance with Instruction A), to the
Depositary at the appropriate address set forth on the front of this Cash
Election Form. Please read and follow carefully the instructions regarding
completion of this Cash Election Form set forth below. If you have any questions
concerning this Cash Election Form or require any information or assistance, see
Instruction G(1).

         HOLDERS OF PSBP COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK IN
THE PSBP MERGER SHOULD NOT SUBMIT THIS CASH ELECTION FORM AND SHOULD NOT SUBMIT
THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER OF
TRANSMITTAL AND INSTRUCTIONS FROM THE EXCHANGE AGENT WHICH WILL BE MAILED AFTER
THE CONSUMMATION OF THE PSBP MERGER.

A.   TIME IN WHICH TO ELECT

         In order for an Election to be effective, the Depositary must receive a
properly completed Cash Election Form, accompanied by all stock Certificates
representing PSBP Common Stock currently held by you, NO LATER THAN 5:00 P.M.,
NEW YORK CITY TIME, ON THE LAST BUSINESS DAY BEFORE THE DAY OF THE MEETING OF
SHAREHOLDERS OF PSBP (the "Election Deadline").  If all other conditions set
forth in the Merger Agreement have been met or, if permissible, waived, the
effective time of the PSBP Merger (the "Effective Time") could occur on the same
day approval of the PSBP Merger by shareholders of PSBP is obtained.  THUS,
SHAREHOLDERS ARE URGED TO DELIVER A PROPERLY COMPLETED CASH ELECTION FORM,
ACCOMPANIED BY STOCK CERTIFICATES (OR A PROPER GUARANTY OF DELIVERY, AS
DESCRIBED BELOW), NO LATER THAN 5:00 P.M., NEW YORK CITY TIME, ON
_______________, 1996, IN ORDER TO ASSURE THAT THEIR CASH ELECTION FORM WILL BE
RECEIVED BY THE ELECTION DEADLINE.  As soon as the date on which the effective
time of the PSBP Merger is anticipated to occur is determined, PSBP and PSI will
publicly announce such date, although no assurance can be given that the
Effective Time will occur on such date.  Persons whose stock Certificates are
not immediately available may also make an Election by completing this Cash
Election Form and having Box E (Guaranty of Delivery) properly completed and
duly executed by a member of a registered national securities exchange or of the
National Association of Securities Dealers, Inc. or a commercial bank or trust
company having an office or correspondent in the United States (subject to the
condition that the Certificates, the delivery of which is thereby guaranteed,
are in fact delivered to the Depositary no later than 5:00 p.m., New York City
Time, on the fifth business day after the Election Deadline (the "Guaranteed
Delivery Deadline")).

         IF THE DEPOSITARY HAS NOT RECEIVED YOUR PROPERLY COMPLETED CASH
ELECTION FORM, ACCOMPANIED BY YOUR STOCK CERTIFICATES, BY THE ELECTION DEADLINE
(UNLESS BOX E (GUARANTY OF DELIVERY) HAS BEEN PROPERLY COMPLETED AND SUCH
CERTIFICATES ARE RECEIVED BY THE DEPOSITARY BY THE GUARANTEED DELIVERY
DEADLINE), YOU WILL RECEIVE PSI COMMON STOCK IN THE PSBP MERGER.

         For instructions regarding changes or revocations of Elections and the
time in which such changes or revocations can be made, see Instructions F(1) and
F(2) below.

B.   ELECTIONS

         This Cash Election Form provides for your Election, subject to the
Election and Allocation Procedures and the other terms and conditions set forth
hereunder and in the documents incorporated herein by reference, upon
consummation of the PSBP Merger to have each of the shares of PSBP Common Stock
covered by this Cash Election Form converted into the right to receive $19.59 in
cash (subject to adjustment as described in the Merger Agreement), without
interest (a "Cash Election").

         You should understand that your Election is subject to certain terms
and conditions that are set forth in the Merger Agreement and described in the
Joint Proxy Statement and Prospectus. The Merger Agreement is included as
Appendix A to the Joint Proxy Statement and Prospectus. Copies of the Joint
Proxy Statement and Prospectus may be requested from the Depositary at the
address and telephone number set forth on the first page of this Cash Election
Form (see Instruction G(10)). The delivery of this Cash Election Form to the
Depositary constitutes acknowledgement of the receipt of the Joint Proxy
Statement and Prospectus. EACH HOLDER OF PSBP COMMON STOCK IS STRONGLY
ENCOURAGED TO READ THE JOINT PROXY STATEMENT AND PROSPECTUS IN ITS ENTIRETY AND
TO DISCUSS THE CONTENTS THEREOF, THE PSBP MERGER AND THIS CASH ELECTION FORM
WITH HIS OR HER PERSONAL FINANCIAL AND TAX ADVISORS PRIOR TO DECIDING WHETHER TO
ELECT CASH. THE TAX CONSEQUENCES TO A HOLDER OF PSBP COMMON STOCK WILL VARY
DEPENDING UPON A NUMBER OF FACTORS. FOR CERTAIN INFORMATION REGARDING THE
FEDERAL INCOME TAX CONSEQUENCES OF AN ELECTION, SEE "CERTAIN FEDERAL INCOME TAX
MATTERS -- THE MERGERS" IN THE JOINT PROXY STATEMENT AND PROSPECTUS.

C.   CASH ELECTION

         By completing and submitting the Cash Election Form, you are electing,
subject to the Election and Allocation Procedures and the other terms and
conditions set forth in this Cash Election Form, including the documents
incorporated herein by reference, to receive cash for all of the shares of PSBP
Common Stock covered by this Cash Election Form.

D.   RECEIPT OF PSI COMMON STOCK

         HOLDERS OF PSBP COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK IN
THE PSBP MERGER SHOULD NOT SUBMIT THIS CASH ELECTION FORM AND SHOULD NOT SUBMIT
THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER OF
TRANSMITTAL AND INSTRUCTIONS FROM THE EXCHANGE AGENT WHICH WILL BE MAILED AFTER
THE CONSUMMATION OF THE PSBP MERGER.

E.   FAILURE TO MAKE EFFECTIVE CASH ELECTION

         If you have failed to make an effective Cash Election, or if your
Election is deemed by the Depositary or PSI to be defective in any way, or if
your Cash Election Form is not accompanied by your Certificates (unless Box E
(Guaranty of Delivery) has been properly completed and such Certificates are
received by the Depositary by the Guaranteed Delivery Deadline), you will
receive PSI Common Stock in the PSBP Merger.

F.   SPECIAL CONDITIONS

     (1) Revocation of Election.  An election may be revoked by the person or
persons making such election by a written notice signed and dated by such person
or persons and received by the Depositary prior to the Election Deadline,
identifying the name of the registered holder of the PSBP Common Stock subject
to such Election and the serial numbers shown on the Certificates representing
such PSBP Common Stock.  Any person or persons who have effectively revoked an
Election may, by a signed and dated written 

                                       2
<PAGE>
 
notice to the Depositary, request the return of the stock Certificates submitted
to the Depositary and such Certificates will be returned to such person or
persons (at the shareholder's risk) within five business days of receipt of such
request.

     (2) Nullification of Election. All Cash Election Forms will be void and of
no effect if the PSBP Merger is not consummated, and Certificates submitted
therewith shall be promptly returned to the persons submitting the same.

     (3) Elections Subject to Allocation.  All Elections are subject to the
Election and Allocation Procedures set forth in the Merger Agreement and
described in the Joint Proxy Statement and Prospectus under the caption "The
Mergers -- General" and to the other terms and conditions set forth thereunder
and hereunder, including the documents incorporated herein by reference.

     (4) Shares Held by Nominees, Trustees or other Representatives.  Holders of
record of shares of PSBP Common Stock who hold such shares as nominees, trustees
or in other representative or fiduciary capacities (a "Representative") may
submit one or more Cash Election Forms covering the aggregate number of shares
of PSBP Common Stock held by such Representative for the beneficial owners for
whom the Representative is making an Election, provided, that such
Representative certifies that each such Cash Election Form covers all the shares
of PSBP Common Stock held by such Representative for a particular beneficial
owner.  Any Representative who makes an Election or a Non-Election may be
required to provide the Depositary with such documents and/or additional
certifications, if requested, in order to satisfy the Depositary that such
Representative holds such shares of PSBP Common Stock for a particular
beneficial owner of such shares.  If any shares held by a Representative are not
covered by an effective Cash Election Form, they will be exchanged for PSI
Common Stock.

G.  GENERAL

     (1) Execution and Delivery. In order to make an effective Election, you
must correctly fill in the Execution Section of this Cash Election Form. After
dating and signing it, you are responsible for its delivery, accompanied by all
stock Certificates representing PSBP Common Stock currently held by you or a
proper Guaranty of Delivery of such stock Certificates pursuant to Instruction
A, to the Depositary at the address set forth on the front of this Cash Election
Form by the Election Deadline. YOU MAY CHOOSE ANY METHOD TO DELIVER THIS CASH
ELECTION FORM; HOWEVER, YOU ASSUME ALL RISK OF NON-DELIVERY. IF YOU CHOOSE TO
USE THE MAIL, WE RECOMMEND THAT YOU USE REGISTERED MAIL, RETURN RECEIPT
REQUESTED, AND THAT YOU PROPERLY INSURE ALL STOCK CERTIFICATES. DELIVERY OF
STOCK CERTIFICATES WILL BE DEEMED EFFECTIVE AND RISK OF LOSS WITH RESPECT TO
SUCH CERTIFICATES SHALL PASS ONLY WHEN SUCH CERTIFICATES ARE ACTUALLY RECEIVED
BY THE DEPOSITARY.

     (2) Signatures. Except as otherwise permitted below, you must sign this
Cash Election Form exactly the way your name appears on the face of your
Certificates. If the shares are owned by two or more persons, each must sign
exactly as his or her name appears on the face of the Certificates. If shares of
PSBP Common Stock have been assigned by the registered owner, this Cash Election
Form should be signed in exactly the same way as the name of the assignee
appearing on the Certificates or transfer documents. See Instructions G(5)(a)
and G(5)(b).

     (3) Notice of Defects; Resolution of Disputes.  None of PSBP, PSI and the
Depositary will be under any obligation to notify you or anyone else that the
Depositary has not received a properly completed Cash Election Form or that any
Cash Election Form submitted is defective in any way.

         Any and all disputes with respect to Cash Election Forms or to
Elections made in respect of PSBP Common Stock (including but not limited to
matters relating to the Election Deadline, time limits, defects or
irregularities in the surrender of any stock Certificate, effectiveness of any
Elections and computations of allocations) will be resolved by PSI and its
decision will be conclusive and binding on all concerned. PSI may delegate this
function to the Depositary in whole or in part. PSI or the Depositary shall have
the absolute right in its sole discretion to reject any and all Cash Election
Forms and surrenders of stock Certificates which are deemed by either of them to
be not in proper form or to waive any immaterial irregularities in any Cash
Election Form or in the surrender of any stock Certificate. Surrenders of stock
Certificates will not be deemed to have been made until all defects or
irregularities that have not been waived have been cured.

     (4) Issuance of Payment Check(s). If the Payment Check(s) are to be issued
in the name of the registered holder(s) as inscribed on the surrendered
Certificate(s), no guarantee of the signature on the Cash Election Form is
required. For corrections in name and change in name not involving changes in
ownership, see Instruction G(5)(c).

     (5) Issuance of Payment Check(s) in Different Names. If the Payment
Check(s) are to be issued in the name of someone other than the registered
holder(s) of the surrendered Certificate(s), you must follow the guidelines
below. Note that in each circumstance listed below, shareholder(s) must have
signature(s) guaranteed in Box C and complete Box F.

         (a) Endorsement and Guarantee. The Certificate(s) surrendered must be
    properly endorsed (or accompanied by appropriate stock powers properly
    executed) by the registered holder(s) of such Certificate(s) to the person
    who is to receive the Payment Check(s). The signature(s) of the registered
    holder(s) on the endorsement or stock powers must correspond with the
    name(s) written upon the face of the Certificate(s) in every particular and
    must be medallion guaranteed by an eligible guarantor institution as defined
    below.

                  DEFINITION OF ELIGIBLE GUARANTOR INSTITUTION

            Generally an eligible guarantor institution, as defined in Rule 
    17Ad-15 of the regulations of the Securities and Exchange Commission, means:

            (i) Banks (as that term is defined in Section 3(a) of the Federal
    Deposit Insurance Act);

           (ii) Brokers, dealers, municipal securities dealers, municipal
    securities brokers, government securities dealers, and government securities
    brokers, as those terms are defined under the Securities Exchange Act of
    1934;

          (iii) Credit unions (as that term is defined in Section 19(b)(1)(A) of
    the Federal Reserve Act);

           (iv) National securities exchanges, registered securities
    associations, clearing agencies, as those terms are used under the
    Securities Exchange Act of 1934; and

            (v) Savings associations (as that term is defined in Section 3(b) of
    the Federal Deposit Insurance Act).

                                       3
<PAGE>
 
         (b) Transferee's Signature. The Cash Election Form must be signed by
    the transferee or assignee or his or her agent, and should not be signed by
    the transferor or assignor. See Box B (Sign Here). The signature of such
    transferee or assignee must be medallion guaranteed by an eligible guarantor
    institution as provided in Instruction G(5)(a).

         (c) Correction of or Change in Name. For a correction of name or for
    a change in name which does not involve a change in ownership, proceed as
    follows. For a change in name by marriage, etc., the Cash Election Form
    should be signed, e.g., "Mary Doe, now by marriage Mary Jones." For a
    correction in name, the Cash Election Form should be signed, e.g., "James E.
    Brown, incorrectly inscribed as J.E. Brown." The signature in each case
    should be guaranteed in the manner described in Instruction G(5)(a) above
    and Box F should be completed.

         You should consult your own tax advisor as to any possible tax
    consequences resulting from the issuance of Payment Check(s) in a name
    different from that of the registered holder(s) of the surrendered
    Certificate(s).

     (6) Supporting Evidence.  In case any Cash Election Form, certificate
endorsement or stock power is executed by an agent, attorney, administrator,
executor, guardian, trustee or any person in any other fiduciary or
representative capacity, or by an officer of a corporation on behalf of the
corporation, there must be submitted (with the Cash Election Form, surrendered
Certificate(s), and/or stock powers) documentary evidence of appointment and
authority to act in such capacity (including court orders and corporate
resolutions when necessary), as well as evidence of the authority of the person
making such execution to assign, sell or transfer the Certificate(s).  Such
documentary evidence of authority must be in form satisfactory to the
Depositary.

     (7) Special Mailing Instructions. The Payment Check(s) will be mailed to
the address of the registered holder(s) as indicated in Box A (Certificate
Information), unless instructions to the contrary are given in Box G (Special
Mailing Instructions).

     (8) Lost Certificates.  If you are not able to locate your Certificate(s)
representing PSBP Common Stock, you should contact American Stock Transfer &
Trust Company, PSBP's transfer agent, at (800) 937-5449.  In such event, the
transfer agent will forward additional documentation which the shareholder must
complete in order to effectively surrender such lost or destroyed
Certificate(s).  There will be a cost to replace lost Certificates.

     (9) Federal Income Tax Withholding.  Under Federal income tax law, the
Depositary is required to file a report with the Internal Revenue Service
disclosing any payments of cash being made to each holder of Certificates
formerly representing shares of PSBP Common Stock pursuant to the Merger
Agreement.  In order to avoid backup withholding of Federal income tax on any
cash received upon the surrender of Certificate(s), a holder thereof must,
unless an exemption applies, provide the Depositary with his or her correct
taxpayer identification number ("TIN") on Substitute Form W-9, which is part of
this Cash Election Form (Box D), and certify, under penalties of perjury, that
such number is correct and that such holder is not otherwise subject to backup
withholding.  If the correct TIN and certifications are not provided, a $50
penalty may be imposed by the Internal Revenue Service and payments made for
surrender of Certificate(s) may be subject to backup withholding of 31%.  In
addition, if a holder makes a false statement that results in no imposition of
backup withholding, and there was no reasonable basis for making such a
statement, a $500 penalty may also be imposed by the Internal Revenue Service.

         Backup withholding is not an additional Federal income tax. Rather, the
Federal income tax liability of a person subject to backup withholding will be
reduced by the amount of such tax withheld. If backup withholding results in an
overpayment of income taxes, a refund may be obtained from the Internal Revenue
Service.

         The TIN that must be provided on the Substitute Form W-9 is that of the
registered holder(s) of the Certificate(s) at the effective time of the PSBP
Merger.  The TIN for an individual is his or her social security number.  The
box in Part II of the Substitute Form W-9 may be checked if the person
surrendering the Certificates has not been issued a TIN and has applied for a
TIN or intends to apply for a TIN in the near future.  If the box in Part II has
been checked, the person surrendering the Certificate(s) must also complete the
Certificate of Awaiting Taxpayer Identification Number below in order to avoid
backup withholding.  Notwithstanding that the box in Part II is checked (and the
Certificate of Awaiting Taxpayer Identification Number is completed), the
Depositary will withhold 31% on all cash payments with respect to surrendered
Certificate(s) made prior to the time it is provided with a properly certified
TIN.

         Exempt persons (including, among others, corporations) are not subject
to backup withholding. A foreign individual may qualify as an exempt person by
submitting Form W-8 or a substitute Form W-8, signed under penalties of perjury,
certifying to such person's exempt status. A form of such statement can be
obtained from the Depositary. A Certificate holder should consult his or her tax
advisor as to such holder's qualification for an exemption from backup
withholding and the procedure for obtaining such exemption.

         The signature and date provided on the Substitute Form W-9 will serve
to certify that the TIN and withholding information provided in this Cash
Election Form are true, correct and complete.

     (10) Questions and Requests for Information or Assistance.  If you have any
questions or need assistance to complete this Cash Election Form, please contact
Shareholder Communications Corporation at (800) 733-8481, extension 421
(individual holders), or (212) 805-7000 (banks and brokers).  You may also
obtain additional copies of the Cash Election Form and the Joint Proxy Statement
and Prospectus from the Depositary at the addresses and telephone number set
forth on the first page of this Cash Election Form.

H.  DELIVERY OF PAYMENT CHECKS

         As soon as practicable after the PSBP Merger becomes effective, the
Depositary will make the allocations of cash to be received by holders of PSBP
Common Stock or their designees in accordance with the Election and Allocation
Procedures.  The Depositary will thereafter issue and mail to you a check for
any cash to which you are entitled, provided you have delivered the required
Certificates for your PSBP Common Stock in accordance with the terms and
conditions hereof, including the documents incorporated herein by reference.

         If you do not submit an effective Cash Election Form, the Exchange
Agent will forward to you, as soon as practicable after the PSBP Merger becomes
effective, a Letter of Transmittal for you to use to send in your stock
Certificates for shares of PSBP Common Stock, containing appropriate
instructions for surrendering such Certificates at that time. After the Exchange
Agent receives your stock Certificates with a properly completed Letter of
Transmittal, it will issue and mail to you a certificate or certificates for PSI
Common Stock to which you are entitled (and, if applicable, a check in lieu of a
fractional share), provided you have delivered the required Certificates for
your PSBP Common Stock in accordance with the terms and conditions of the Letter
of Transmittal, including the documents incorporated therein by reference.

         DO NOT ENCLOSE YOUR PROXY CARD RELATING TO THE SPECIAL MEETING WITH
THIS CASH ELECTION FORM, YOUR PROXY CARD SHOULD BE RETURNED IN THE POSTAGE-PAID
ENVELOPE ENCLOSED WITH THE JOINT PROXY STATEMENT AND PROSPECTUS FOR THAT
PURPOSE.

                                       4
<PAGE>
 
                               CASH ELECTION FORM
                               EXECUTION SECTION
BOX A
- --------------------------------------------------------------------------------
                            CERTIFICATE INFORMATION
List below the certificates to which this Cash Election Form relates.  (Attach
 additional sheets if necessary.)
<TABLE> 
<CAPTION> 
                                                                                              Number of Shares
Name and Address of Registered Holder(s) as Shown on the Share Records                         Represented by
                         (Fill in, if Blank)                             Certificate Number    Each Certificate
- ----------------------------------------------------------------------   ------------------   ------------------
<S>                                                                      <C>                  <C>  
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
                                                                         ------------------   ------------------
 
                                                                            Total Shares:     
                                                                                              ==================
</TABLE>
- --------------------------------------------------------------------------------
                        CERTIFICATE HOLDER(S) SIGN HERE

The undersigned hereby represents and warrants that the undersigned has full
power and authority to complete and deliver this Cash Election Form and to
deliver for surrender and cancellation the above-described Certificate(s)
delivered herewith and that the rights represented by the Certificate(s) are
free and clear of all liens, restrictions, charges and encumbrances and are not
subject to any adverse claim.  The undersigned will, upon request, execute any
additional documents necessary or desirable to complete the surrender of the
Certificate(s) surrendered herewith.  All authority herein conferred shall
survive the death or incapacity of the undersigned and all obligations of the
undersigned hereunder shall be binding upon the heirs, personal representatives,
successors and assigns of the undersigned.  Delivery of the Certificate(s) for
surrender and cancellation may be revoked only in accordance with Instruction
F(2).


BOX B
- --------------------------------------------------------------------------------
                                   SIGN HERE
To be completed by all person(s) surrendering certificates and executing this
 Cash Election Form.
 
 
Signature(s):
             -------------------------------------------------------------------

             -------------------------------------------------------------------
Date:                                Telephone Number: 
             ----------------------                    -------------------------
 
 Must be signed by registered holder(s) exactly as name(s) appear(s) on stock
 Certificate(s) or by person(s) authorized to become registered holders by
 documents transmitted herewith.  If signature is by a trustee, executor,
 administrator, guardian, attorney-in-fact, officer of a corporation or in any
 other fiduciary or representative capacity, please provide the following
 information.  (See Instruction G(6)).
 
Name(s):
             -------------------------------------------------------------------

             -------------------------------------------------------------------
 
 
Capacity 
(Full Title):
             -------------------------------------------------------------------

Address:
             -------------------------------------------------------------------

             -------------------------------------------------------------------
- --------------------------------------------------------------------------------

BOX C
- --------------------------------------------------------------------------------
                              SIGNATURE GUARANTEE
 To be completed only if required by Instruction G(5).  Your signature must be
 MEDALLION GUARANTEED by an eligible financial institution.  Note:  a
 notarization by a notary public is not acceptable.
 
  FOR USE BY FINANCIAL INSTITUTION ONLY.  PLACE MEDALLION GUARANTEE IN SPACE
                                    BELOW.
 
 
 
 
- --------------------------------------------------------------------------------

                                      E-1
<PAGE>
 
                              CASH ELECTION FORM
                         EXECUTION SECTION (CONTINUED)

                           IMPORTANT TAX INFORMATION

PLEASE PROVIDE YOUR SOCIAL SECURITY OR OTHER TAXPAYER IDENTIFICATION NUMBER ON
THIS SUBSTITUTE FORM W-9 AND CERTIFY THAT YOU ARE NOT SUBJECT TO BACKUP
WITHHOLDING.  FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP
WITHHOLDING OF 31% OF ANY CASH PAYMENTS MADE TO YOU PURSUANT TO THE PSBP MERGER.
IF THE BOX IN PART 3 OF THE SUBSTITUTE FORM W-9 IS CHECKED, THE "CERTIFICATE OF
AWAITING TAXPAYER IDENTIFICATION NUMBER" BELOW MUST BE COMPLETED.

BOX D
<TABLE> 
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                        <C> 
 
                             Part 1 - PLEASE PROVIDE YOUR TIN IN                            Social Security Number or
                             THE BOX AT RIGHT AND CERTIFY BY                              Employer Identification Number
SUBSTITUTE                   SIGNING AND DATING BELOW.                                    _______________________________
                           ---------------------------------------------------------------------------------------------------------

Form W-9                     Part 2 - Check the box if you are not subject to backup withholding because (1) you have not been   
                             notified that you are subject to backup withholding as a result of failure to report all interest or 
Department of the Treasury   dividends or (2) the Internal Revenue Service has notified you that you are no longer subject to backup
Internal Revenue Service     withholding. [_]                                                                                       

                           ---------------------------------------------------------------------------------------------------------

Payer's Request for          Certification - Under penalties of perjury, I certify that the information          Part 3 -        
 Taxpayer Identification     provided on this form is true, correct and complete.                                                
 Number (TIN)                                                                                                    Awaiting TIN  [_]
                                                                                                               ---------------------

Signature:                                                     Date:
          ----------------------------------------------------      ------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE> 
- --------------------------------------------------------------------------------
 
            CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

 I certify under penalties of perjury that a taxpayer identification number has
 not been issued to me, and either (a) I have mailed or delivered an
 application to receive a taxpayer identification number to the appropriate
 Internal Revenue Service Center or Social Security Administration Office or
 (b) I intend to mail or deliver an application in the near future.  I
 understand that if I do not provide a taxpayer identification number by the
 time of payment, 31% of any cash payment made to me will be withheld, but that
 such amount will be refunded to me if I then provide a Taxpayer Identification
 Number within sixty (60) days.

Signature:                        Date:
          -----------------------      ----------------------------------------
- --------------------------------------------------------------------------------
 
 BOX E
- --------------------------------------------------------------------------------
                             GUARANTY OF DELIVERY

 To be used only if Certificates are not surrendered herewith.  (See instruction
 A.)  The undersigned (check appropriate boxes below) guarantees to deliver to
 the Depositary at the appropriate address set forth above the Certificates for
 shares of PSP9 Common Stock submitted with this Cash Election Form no later
 than 5:00 p.m., New York City Time, on the fifth business day after the
 Election Deadline (as defined in Instruction A).
<TABLE> 
<S>                                                       <C>                  <C>  
[_]  A member of a registered national                    Firm:
     securities exchange                                                       -------------------------------------------------
                                                                                              
                                                          Authorized Signature:               
                                                                               --------------------------------------------------
                                                                                              
[_]  A member of the National Association                 Address:                            
     of Securities Dealers, Inc.                                               --------------------------------------------------
                                                                                              
                                                                               --------------------------------------------------
                                                                                              
[_]  A commercial bank or trust company                   Telephone Number:                   
     in the United States                                                      --------------------------------------------------
  
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE>

                    SPECIAL PAYMENT AND MAILING INSTRUCTIONS

The undersigned understands that the check issued as payment in cash (such
checks being referred to herein as "Payment Checks") with respect to the PSBP
Common Stock surrendered will be issued in the same name(s) as the
Certificate(s) surrendered and will be mailed to the address of the registered
holder(s) indicated above, unless otherwise indicated in Box F or Box G below.
If Box F is completed, the signature of the undersigned must be guaranteed as
set forth in Instruction G(5).

BOX F
- --------------------------------------------------------------------------------

                         SPECIAL PAYMENT INSTRUCTIONS

To be completed only if the Payment Check(s) is (are) to be issued in the
name(s) of someone other than the registered holder(s) set forth above.
Signature must be guaranteed.  (See Instruction G(5).)
 
Name:
                               -------------------------------------------------
                                                                                
                               -------------------------------------------------
 
Address:
                               -------------------------------------------------
                                                                                
                               -------------------------------------------------

Social Security Number or
Employer Identification Number:
                               -------------------------------------------------
                               
                               -------------------------------------------------
- --------------------------------------------------------------------------------

BOX G
- --------------------------------------------------------------------------------

                         SPECIAL MAILING INSTRUCTIONS

To be completed only if the Payment Check(s) is (are) to be issued to the
registered holder(s) and mailed to an address other than that of the registered
holder(s) set forth above. (See Instruction G(7).)
 
Address:
               ---------------------------------------------------------------

               ---------------------------------------------------------------
- --------------------------------------------------------------------------------

                                      E-2


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