PUBLIC STORAGE INC /CA
S-4, 1996-05-15
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>
 
      As filed with the Securities and Exchange Commission on May 15, 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> 
<S>                                               <C> 
                  95-3551121                                            6798
      (I.R.S. Employer Identification No.)                   (Primary Standard Industrial
                                                              Classification Code Number)

         701 Western Avenue, Suite 200                               HUGH W. HORNE
        Glendale, California 91201-2397                          Public Storage, Inc.
                (818) 244-8080                               701 Western Avenue, Suite 200
       (Address, including zip code, and                    Glendale, California 91201-2397
    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.
                         701 Western Avenue, Suite 200
                        Glendale, California 91201-2397
                                 ______________

        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]

<TABLE>
<CAPTION>

                                           CALCULATION OF REGISTRATION FEE
=========================================================================================================================
                                                                                     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)               $8,010(1)(2)
=========================================================================================================================
</TABLE>
(1) This Registration Statement relates to the proposed merger of Storage
    Properties, Inc. ("SPI") into the Registrant and the conversion of shares of
    common stock of SPI into either cash (as to up to 20% of the outstanding
    shares of common stock of SPI) or common stock of the Registrant.  At the
    merger, there will be a maximum of 3,348,167 shares of common stock of SPI
    outstanding.  The closing price of the common stock of SPI on the American
    Stock Exchange on May 9, 1996 was $6.9375 per share.  The number of shares
    of common stock of the Registrant to be issued in the merger cannot be
    determined at this time.
(2) Calculated in accordance with rule 457(f)(1) under the Securities Act of
    1933.  $4,900 of the registration fee was previously paid in connection with
    SPI'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


     Registration Statement Item            Location in Prospectus
     ---------------------------            ----------------------

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

_________________

*  Omitted as Inapplicable.

                                     (ii)
<PAGE>
 
C.  Information About the Company Being Acquired
 
15. Information with Respect to S-3      Incorporation of Certain Documents by
    Companies                            Reference
 
16. Information with Respect to S-2      Incorporation of Certain Documents by
    or S-3 Companies                     Reference
 
17. Information with Respect to          Incorporation of Certain Documents by
    Companies Other than S-2 or S-3      Reference
    Companies
 
D.  Voting and Management Information
 
18. Information if Proxies, Consents     Incorporation of Certain Documents by
    or Authorizations are to be          Reference
    Solicited

19. Information if Proxies, Consents     Incorporation of Certain Documents by
    or Authorizations are not to be      Reference
    Solicited or in an Exchange Offer

_________________

*  Omitted as Inapplicable.

                                     (iii)
<PAGE>
 
                            STORAGE PROPERTIES, INC.

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS

                             _______________, 1996



    A special meeting of shareholders of Storage Properties, Inc., a California
corporation ("SPI"), will be held at SPI's offices at 600 North Brand Boulevard,
Suite 300, Glendale, California on _______________, 1996, at the hour of _______
__.m.  The purpose of the meeting will be to consider and vote upon an Agreement
and Plan of Reorganization between SPI and Public Storage, Inc. ("PSI")
described in the accompanying Proxy Statement and Prospectus pursuant to which
SPI would be merged with and into PSI (the "Merger").  Upon the Merger, each
outstanding share of SPI Common Stock (other than shares held by PSI or by
shareholders of SPI who have properly exercised dissenters' rights under
California law ("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 SPI Common Stock (not to exceed
20% of the outstanding SPI Common Stock, or 669,633 shares, less any Dissenting
Shares), upon a shareholder's election, $7.31 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 $7.31, 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 SPI.  If a shareholder does not make a Cash Election, all of his or her SPI
Common Stock would be converted into PSI Common Stock in the Merger.  The
consideration paid by PSI in the Merger will be reduced on a pro rata basis by
the amount of cash distributions required to be paid by SPI to its shareholders
prior to completion of the Merger in order to satisfy SPI's REIT distribution
requirements ("Required REIT Distributions").  The consideration received by the
shareholders of SPI in the Merger, however, along with any Required REIT
Distributions, will not be less than $7.31 per share of SPI Common Stock, which
amount represents the market value of SPI's real estate assets at February 29,
1996 (based on an independent appraisal) and the estimated net asset value of
its other assets at June 30, 1996.  Additional pre-merger cash distributions
would be made to the shareholders of SPI to cause SPI's estimated net asset
value as of the date of the Merger to be substantially equivalent to its
estimated net asset value as of June 30, 1996.  The SPI Common Stock held by PSI
will be cancelled in the Merger.

    The SPI Board of Directors has determined that holders of record of SPI
Common Stock at the close of business on May 13, 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.
                            STORAGE PROPERTIES, INC.

                         PROXY STATEMENT AND PROSPECTUS
                       SPECIAL MEETING OF SHAREHOLDERS OF
                            STORAGE PROPERTIES, INC.
                             _______________, 1996


    This Proxy Statement and Prospectus is being furnished to holders of shares
of Common Stock, par value $.05 per share (the "SPI Common Stock") of Storage
Properties, Inc. ("SPI") and relates to a meeting of shareholders of SPI called
to approve the proposed merger of SPI with and into Public Storage, Inc. ("PSI")
(the "Merger") pursuant to the Agreement and Plan of Reorganization attached as
Appendix A to this Proxy Statement and Prospectus (the "Merger Agreement").
Holders of SPI Common Stock are referred to hereafter as the "SPI Shareholders."

    PSI and its executive officers have significant relationships with SPI, and
PSI owns approximately 9% of the SPI Common Stock.  See "Summary --
Relationships."  PSI has informed SPI that it intends to vote its shares for the
Merger.  The Board of Directors of SPI, based on recommendations of a special
committee composed of independent directors, recommends that SPI Shareholders
vote for the Merger.  SPI has imposed as an additional condition to the Merger
that it be approved by a majority of the shares of SPI Common Stock voting at
the shareholder meeting not held by PSI.

    The Merger involves certain factors that should be considered by SPI
Shareholders, including the following:

 .   The Merger has not been negotiated at arm's length, and no unaffiliated
     representatives were appointed to negotiate the terms of the Merger on
     behalf of SPI.

 .   The nature of the investment of SPI 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 an entity engaged solely in the
     ownership of mini-warehouses to holding an investment in a fully-integrated
     real estate company specializing in all aspects of the mini-warehouse
     industry.

 .   Based on the current price of the PSI Common Stock ($21 per share) and the
     current regular quarterly distribution rates for SPI and PSI, the level of
     distributions to SPI Shareholders who receive PSI Common Stock in the
     Merger would be approximately 4% lower after the Merger than before.

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

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

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

                                                   (Continued of 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 SECURITIES 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>
 
 .   B. Wayne Hughes ("Hughes"), the chief executive officer of SPI and PSI, and
     members of his family (the "Hughes Family") own approximately 51% 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 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 SPI Shareholders in the Merger and
     prior to issuance and could decrease as a result of increased selling
     activity following issuance of shares in the Merger and other factors.

 .   The consideration to be received by SPI Shareholders in the Merger 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 SPI's properties.

 .   SPI Shareholders who receive any cash in connection with the Merger may have
     a taxable gain.

SEE "RISK FACTORS AND MATERIAL CONSIDERATIONS" BEGINNING ON PAGE ___ OF THIS
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 SPI Common Stock is traded on the American
Stock Exchange ("AMEX") under the symbol "STG".  On _______________, 1996, the
closing price of the SPI Common Stock on the AMEX was $_____.

    This Proxy Statement and Prospectus is first being mailed on or about May
21, 1996 to SPI Shareholders of record at the close of business on May 13, 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 OR SPI.
THIS 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 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 OF CONTENTS
<TABLE>
<CAPTION>
                                                                        Page
                                                                        ----
<S>                                                                     <C>
 
Available Information................................................    1
Incorporation of Certain Documents by Reference......................    1
Summary..............................................................    2
   Overview of Merger................................................    2
   Meetings and Vote Requirements of Shareholders....................    2
   PSI...............................................................    3
   SPI...............................................................    3
   Merger with PSMI..................................................    3
   Risk Factors and Material Considerations..........................    3
   Background and Reasons for the Merger.............................    5
   Potential Advantages of the Merger................................    6
   Rights of Dissenting Shareholders.................................    6
   Determination of Payments to be Received by SPI Shareholders
    in Connection with the Merger....................................    7
   Federal Income Tax Matters........................................    7
   Recommendations; Opinion of Financial Advisor.....................    7
   Comparison of SPI Common Stock with PSI Common Stock..............    8
   Summary Financial Information.....................................   11
   Relationships.....................................................   13
Risk Factors and Material Considerations.............................   15
   No Arm's Length Negotiation or Unaffiliated Representatives.......   15
   Change in Nature of Investment....................................   15
   Uncertainty Regarding Market Price of PSI Common Stock............   15
   Potential Loss of Future Appreciation.............................   15
   Limitation on Dissenters' Rights of Appraisal.....................   15
   Lower Level of Distributions to SPI Shareholders..................   15
   Control and Influence by the Hughes Family........................   16
   Ownership Limitations.............................................   16
   Tax Risks.........................................................   16
   Financing Risks...................................................   17
   Merger Consideration Based on Appraisals Instead of Arm's Length 
    Negotiation......................................................   18
   Tax to SPI Shareholders...........................................   18
   Operating Risks...................................................   18
   Shares Eligible for Future Sale...................................   20
Conflicts of Interest in the Merger..................................   20
The Merger...........................................................   21
   General...........................................................   21
   Background........................................................   21
   Reasons for the Merger and Timing.................................   23
   Alternatives to the Merger........................................   23
   No Solicitation of Other Proposals................................   25
   Determination of Payments to be Received by SPI Shareholders in 
    Connection with the Merger.......................................   25
   Potential Advantages of the Merger to SPI.........................   27
   Recommendation to SPI Shareholders and Fairness Analysis..........   27
   Comparison of Consideration to be Received in the Merger to Other 
    Alternatives.....................................................   29
   Real Estate Portfolio Appraisal by Wilson.........................   32
   Fairness Opinion from Stanger.....................................   34
   The Merger Agreement..............................................   39
   Cash Election Procedure...........................................   40
   Consequences to SPI if the Merger is Not Completed................   41
 
</TABLE>

                                      iii
<PAGE>
 
<TABLE>
<CAPTION>
                                                                        Page
                                                                        ----
<S>                                                                     <C>
   Costs of the Merger...............................................    42
   Accounting Treatment..............................................    42
   Regulatory Requirements...........................................    42
   Comparison of SPI Common Stock with PSI Common Stock..............    43
Approval of the Merger...............................................    47
   Security Ownership of Certain Beneficial Owners and Management....    48
   Solicitation of Proxies...........................................    53
Description of SPI's Properties......................................    54
Description of PSI's Properties......................................    58
Distributions and Price Range of PSI Common Stock....................    59
Distributions and Price Range of SPI Common Stock....................    60
Description of PSI Capital Stock.....................................    61
   Common Stock......................................................    61
   Ownership Limitations.............................................    61
   Class B Common Stock..............................................    62
   Preferred Stock...................................................    63
   Effects of Issuance of Capital Stock..............................    64
Dissenting Shareholders' Rights of Appraisal.........................    65
Certain Federal Income Tax Matters...................................    67
   The Merger........................................................    67
   Opinion of Counsel................................................    68
   General Tax Treatment of PSI......................................    69
   Consequences of the PSMI Merger on PSI's Qualification as a REIT..    72
   Taxation of PSI Shareholders......................................    76
   State and Local Taxes.............................................    78
Legal Opinions.......................................................    78
Experts..............................................................    78
Independent Auditors.................................................    78
Shareholder Proposals................................................    78
Glossary.............................................................    79
 
Appendix A  - Agreement and Plan of Reorganization between PSI and SPI dated as
              of March 4, 1996
Appendix B  - Real Estate Appraisal Report by Charles R. Wilson & Associates, 
              Inc. dated March 29, 1996
Appendix C  - Opinion of Robert A. Stanger & Co., Inc. dated May 15, 1996
Appendix D  - Chapter 13 of the California General Corporation Law Concerning
              Dissenters' Rights
Appendix E  - Financial Statements of SPI
Appendix F  - Management's Discussion and Analysis of Financial Condition and 
              Results of Operations of SPI
</TABLE>
<PAGE>
 
                             AVAILABLE INFORMATION

  Each of PSI and SPI 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 SPI, 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 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, 1995, as
amended by a Form 10-K/A dated April 29, 1996 and a Form 10-K/A dated May 14, 
1996 and (ii) the Current Report on Form 8-K dated January 22, 1996.

  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 Proxy Statement and Prospectus
and prior to the date of the special meetings of SPI Shareholders shall be
deemed to be incorporated by reference herein from the date of filing such
documents.

  The following documents filed by SPI with the Commission pursuant to Section
13 of the Exchange Act (File No. 1-10609) are incorporated herein by reference:
(i) the Annual Report on Form 10-K for the year ended December 31, 1995, as
amended by a Form 10-K/A dated April 26, 1996 and (ii) the Current Report on
Form 8-K dated March 4, 1996.

  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 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 Proxy
Statement and Prospectus.

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

          THIS 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
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, 701 WESTERN AVENUE, SUITE 200, GLENDALE, CALIFORNIA 91201-2397 OR BY
TELEPHONE AT (818) 244-8080.  IN ORDER TO ENSURE TIMELY DELIVERY OF THE
DOCUMENTS, ANY REQUEST SHOULD BE MADE BY _______________, 1996.

                                       1
<PAGE>
 
                                    SUMMARY

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

OVERVIEW OF MERGER

     Upon consummation of the Merger, SPI will be merged into PSI, which will be
the surviving corporation.  Each share of SPI Common Stock outstanding
immediately prior to the consummation of the Merger (other than shares held by
SPI Shareholders who have properly exercised dissenter's rights under California
law ("Dissenting 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 SPI Common Stock (not to exceed 20% of the
outstanding SPI Common Stock, or 669,633 shares, less any Dissenting Shares),
upon a SPI Shareholder's election (the "Cash Election"), $7.31 in cash, subject
to reduction as described below, or (ii) that number of shares of PSI Common
Stock (subject to rounding) determined by dividing $7.31, 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 SPI Shareholders.  If a SPI
Shareholder does not make a Cash Election, all of his or her SPI Common Stock
would be converted into PSI Common Stock.  The consideration paid by PSI to SPI
Shareholders in the Merger will be reduced on a pro rata basis by the amount of
cash distributions required to be paid to SPI Shareholders by SPI prior to
completion of the Merger (estimated to be approximately $.20 per share) in order
to satisfy SPI's REIT distribution requirements ("Required REIT Distributions").
The consideration received by SPI Shareholders in the Merger, however, along
with any Required REIT Distributions, will not be less than $7.31 per share of
SPI Common Stock, which amount represents the market value of SPI's real estate
assets at February 29, 1996 (based on an independent appraisal) and the
estimated net asset value of its other assets at June 30, 1996.  SPI
Shareholders would receive the Required REIT Distributions upon any liquidation
of SPI, regardless of the Merger.  Additional pre-merger cash distributions
would be made to SPI Shareholders to cause SPI's estimated net asset value as of
the date of the Merger to be substantially equivalent to its estimated net asset
value as of June 30, 1996.  The SPI Common Stock held by PSI will be cancelled
in the Merger.  See "The Merger -- Determination of Payments to be Received by
SPI Shareholders in Connection with the Merger."  For a description of the terms
of the Merger, see "The Merger -- The Merger Agreement."

     The PSI Common Stock is listed on the NYSE, and the SPI Common Stock is
listed on the AMEX.  On March 1, 1996, the last full trading day prior to the
first announcement of the proposed Merger, the reported closing sales prices per
share of PSI and SPI Common Stock on the NYSE and AMEX, respectively, were $21
1/2 and $6/5//8, respectively.  On _______________, 1996, the last full trading
day prior to the date of this Proxy Statement and Prospectus, the reported
closing sales prices per share of PSI and SPI Common Stock were $_____ and
$_____, respectively.

MEETINGS AND VOTE REQUIREMENTS OF SHAREHOLDERS

        Meeting Date                         ___________, 1996 at ______ __.m.
        Record Date                                    May 13, 1996
        Purpose                                   To Approve the Merger
        Shares of Common Stock Outstanding           3,348,167 Shares
        Vote Required                        Majority of Shares of Outstanding
                                                     SPI Common Stock *
        Percentage Ownership by PSI                         9%
        Shareholder Lists                      Available upon written demand
_______________

*  SPI has imposed as an additional condition to the Merger that it be approved
   by a majority of the shares of SPI Common Stock voting at the meeting of SPI
   Shareholders not held by PSI.

                                       2
<PAGE>
 
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 December 31, 1995, PSI
had equity interests (through direct ownership, as well as general and limited
partnership and capital stock interests) in 1,050 properties located in 37
states, consisting of 1,016 mini-warehouse facilities and 34 business parks.

  In a series of mergers among Public Storage Management, Inc. and its
affiliates (collectively, "PSMI"), culminating in the November 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."

SPI

  SPI is a REIT organized in 1989 as a California corporation.  PSMI was the
sponsor of SPI.  SPI owns seven mini-warehouses and one parcel of vacant land
located in six states.  All of these facilities are operated under the "Public
Storage" name.  See "Description of SPI's Properties."  The SPI Common Stock is
traded on the AMEX under the symbol "STG".

  SPI is advised and its facilities are managed by PSI.  SPI's operations are
under the general supervision of its five-member board of directors, consisting
of two members who are directors and executive officers of PSI, one member who
is a director of PSI and two independent directors.

  The principal executive offices of PSI and SPI are located at 701 Western
Avenue, Suite 200, Glendale, California 91201-2397.  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 29,449,513 shares of PSI Common Stock (exclusive
of shares of PSI Common Stock held by PSMI prior to the PSMI Merger) and
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.  In the PSMI Merger, PSI
assumed all of PSMI's rights and obligations under the Advisory Agreement dated
June 23, 1989 between PSMI and SPI (the "Advisory Agreement").

RISK FACTORS AND MATERIAL CONSIDERATIONS

  The Merger involves certain factors that should be considered by SPI
Shareholders, including the following:

  .     No Arm's Length Negotiation or Unaffiliated Representatives.  The Merger
        has not been negotiated at arm's length, and no unaffiliated
        representatives were appointed to negotiate the terms of the Merger on
        behalf of SPI. If such persons had been engaged, the terms of the Merger
        may have been more favorable to SPI Shareholders.

                                       3
<PAGE>
 
  .  Change in Nature of Investment.  The nature of the investment of SPI
     Shareholders who receive PSI Common Stock is being changed from holding an
     interest in an entity engaged solely in the ownership of mini-warehouses to
     holding an investment in a fully-integrated real estate company which is
     engaged in all aspects of the mini-warehouse industry, including property
     development and management.

  .  Lower Level of Distributions After the Merger to SPI 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 Merger is established, the
     level of distributions to SPI Shareholders who receive PSI Common Stock in
     the Merger may be lower after the Merger than before. Based on a market
     price of PSI Common Stock of $21 and the current regular quarterly
     distribution rate for PSI ($.22 per share) and SPI ($.08 per share), SPI
     Shareholders would receive approximately $.003 (4.3%) less in regular
     quarterly distributions per share of SPI Common Stock after the Merger from
     PSI than before the Merger from SPI and approximately $.001 less per share
     in regular quarterly distributions for each $.25 (1.2%) increase in the
     market price of PSI Common Stock above $21.

  .  Potential Loss of Future Appreciation.  SPI's properties may continue to
     appreciate in value and might be able to be liquidated at a later date for
     more consideration than receivable in the Merger.

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

  .  Conflicts of Interest. PSI and its affiliates, which are affiliated with
     SPI, have conflicts of interest in connection with the Merger.

  .  Control and Influence by the Hughes Family.  The Hughes Family owns
     approximately 51% of the PSI Common Stock (approximately 55% 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 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 SPI Shareholders in the Merger and prior to issuance
     and could decrease as a result of increased selling activity following
     issuance of shares in the Merger and other factors.

  .  Merger Consideration Based on Appraisals Instead of Arm's Length
     Negotiations. The consideration to be paid to SPI Shareholders is based on
     third party appraisals of SPI's properties. 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 SPI's
     properties. There can be no assurance that if SPI's properties were sold,
     they would be sold at the appraised values; the sales price might be higher
     or lower.

                                       4
<PAGE>
 
  .  Tax to SPI Shareholders Upon Receipt of Cash.  SPI Shareholders who receive
     any cash in connection with the Merger may recognize a taxable gain.  In
     addition, the Required REIT Distributions will be taxable to all SPI
     Shareholders as ordinary income.

  .  Payment to PSI. The Merger results in the payment of $2,270,000 under the
     Advisory Agreement, which reduces the number of shares of PSI Common Stock
     to be issued to SPI Shareholders in the Merger.

BACKGROUND AND REASONS FOR THE MERGER

  THE MERGER HAS BEEN INITIATED AND STRUCTURED BY INDIVIDUALS WHO ARE EXECUTIVE
OFFICERS OF BOTH PSI AND SPI.  A SPECIAL COMMITTEE COMPOSED OF INDEPENDENT
DIRECTORS OF SPI (THE "SPI SPECIAL COMMITTEE") HAS REVIEWED THE TERMS OF THE
MERGER, AND THE BOARD OF DIRECTORS OF SPI, BASED ON RECOMMENDATIONS OF THE SPI
SPECIAL COMMITTEE WHICH THE BOARD OF DIRECTORS HAS ADOPTED, AND ON THE OPINION
OF A FINANCIAL ADVISOR IN WHICH IT CONCURS, BELIEVES THAT THE MERGER IS FAIR TO
THE PUBLIC SHAREHOLDERS OF SPI, AND RECOMMENDS THAT SPI SHAREHOLDERS VOTE FOR
THE MERGER.  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 March 1996, PSI merged with five REITs which, like
SPI, had been affiliated with PSI.

  In February 1996, the SPI Board of Directors appointed the SPI Special
Committee to consider and make recommendations to the SPI Board of Directors and
shareholders regarding a possible merger with PSI.  On March 19, 1996, the SPI
Board of Directors based on recommendations of the SPI Special Committee, which
were adopted by the SPI Board of Directors, approved the Merger and determined
to recommend that SPI Shareholders vote for the Merger.

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

  Prior to concluding that the Merger should be proposed to SPI Shareholders,
the SPI Board of Directors and the SPI Special Committee considered several
alternatives to the Merger, including liquidation of SPI and continued operation
of SPI.  In order to determine whether the Merger or one of the alternatives
would be more advantageous to SPI Shareholders, the SPI Board of Directors and
the SPI Special Committee compared the potential benefits and detriments of the
Merger with the potential benefits and detriments of other alternatives.  Based
upon a comparison of the potential benefits and detriments of the Merger with
their alternatives, the SPI Board of Directors and the SPI Special Committee
have concluded that the Merger is more attractive to SPI Shareholders than any
of the alternatives considered.  The SPI Board of Directors did not solicit any
other proposals for the acquisition of SPI or its properties.  See "The Merger -
- - No Solicitation of Other Proposals."

  In comparing the Merger to other alternatives, the SPI Board of Directors and
the SPI Special Committee noted the following:

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

                                       5
<PAGE>
 
  Continued Operation.  Nothing requires the liquidation or merger of SPI at
this time.  SPI is operating profitably.  Continued operation should provide SPI
Shareholders with continued distributions of net operating cash flow and
participation in future appreciation of SPI'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
Merger described under "The Merger -- Potential Advantages of the Merger."

  There are no restrictions in SPI's organizational documents on investment of
cash flow and issuance of securities by SPI, and SPI is not precluded from
taking advantage of investment opportunities and growing as new investments are
made.  However, the SPI Board of Directors and the SPI Special Committee 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 MERGER

  The principal potential benefits to SPI Shareholders who receive PSI Common
Stock are:

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

  .   Increased Liquidity.  SPI has 3,348,167 shares of SPI Common Stock listed
      on the AMEX with an average daily trading volume during the 12 months
      ended December 31, 1995 of 3,051 shares. In comparison, PSI has
      approximately 71.5 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 59,432 shares (52,913 shares if May 1995,
      during which PSI was engaged in a public offering of Common Stock, is
      excluded). Given PSI's greater market capitalization and trading volume
      than SPI, SPI 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.  The Merger is
      intended to qualify as a tax-free reorganization. Assuming such
      qualification, no taxable gain or loss will be recognized in connection
      with the Merger by SPI Shareholders who exchange their SPI Common Stock
      solely for PSI Common Stock. However, the Required REIT Distributions will
      be taxable to all SPI Shareholders as ordinary income. See "Certain
      Federal Income Tax Matters -- The Merger."

RIGHTS OF DISSENTING SHAREHOLDERS

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

  A dissenting shareholder who wishes to require SPI to purchase his or her
shares of SPI Common Stock must:

          (1) vote against the Merger any or all of the shares of SPI Common
     Stock entitled to be voted (shares of SPI Common Stock not voted are not
     considered to be voted against the Merger and will not be counted toward
     the 5% minimum for Dissenters' Rights to exist); provided that if a SPI
     Shareholder votes part of the shares entitled to be voted in favor of the
     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 SPI or its transfer agent, which is
     received not later than the date of the meeting of SPI Shareholders,
     setting forth the number of shares of SPI Common Stock demanded to be
     purchased by SPI and a statement as to claimed fair market value of such
     shares at March 1, 1996; and

                                       6
<PAGE>
 
          (3) submit for endorsement, within 30 days after the date on which the
     notice of approval of the Merger by SPI Shareholders is mailed to such
     shareholders, to SPI 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.  SPI
Shareholders desiring to exercise Dissenters' 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 SPI SHAREHOLDERS IN CONNECTION WITH
THE MERGER

     In connection with the Merger, SPI Shareholders will receive the net asset
value or $7.31 per share of SPI Common Stock.  SPI's net asset value is the sum
of (a) the appraised value of SPI's real estate assets determined by Wilson, as
of February 29, 1996, plus (b) the estimated book value of SPI's non-real estate
assets as of June 30, 1996, less (c) SPI's estimated liabilities as of June 30,
1996.  Pre-merger cash distributions would be made to SPI Shareholders to cause
SPI's estimated net asset value as of the date of the Merger to be substantially
equivalent to its estimated net asset value as of June 30, 1996.  The
consideration paid to SPI Shareholders by PSI in the Merger will be reduced on a
pro rata basis by the amount of the Required REIT Distributions paid to SPI
Shareholders by SPI prior to completion of the Merger.  See "The Merger --
Determination of Payments to be Received by SPI Shareholders in Connection with
the Merger."  However, the consideration received by SPI Shareholders in the
Merger along with the Required REIT Distributions (which will be paid in cash)
will not be less than $7.31.

FEDERAL INCOME TAX MATTERS

     The Merger 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 (i) no gain or loss would be recognized by SPI
Shareholders who receive solely PSI Common Stock in exchange for their SPI
Common Stock; (ii) gain or loss would be recognized by SPI Shareholders who
receive solely cash in exchange for their SPI Common Stock in an amount equal to
the difference between their adjusted basis in their SPI Common Stock and the
amount of cash received in exchange therefor; and (iii) gain or loss would be
recognized by SPI Shareholders who receive a combination of PSI Common Stock and
cash in exchange for their SPI Common Stock in an amount equal to the difference
between their adjusted basis in their SPI 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
REIT Distributions would not be treated as cash paid in exchange for the SPI
Common Stock but rather as a dividend taxable to all recipients as ordinary
income.  See "Certain Federal Income Tax Matters -- The Merger."

RECOMMENDATIONS; OPINION OF FINANCIAL ADVISOR

     RECOMMENDATION OF SPI BOARD OF DIRECTORS TO SPI SHAREHOLDERS.  Based upon
an analysis of the Merger, the SPI Special Committee and the SPI Board of
Directors have concluded that (i) the terms of the Merger are fair to the public
shareholders of SPI, (ii) after comparing the potential benefits and detriments
of the Merger with those of several alternatives, the Merger is more
advantageous to SPI Shareholders than such alternatives and (iii) SPI
Shareholders should vote for the Merger.

     The SPI Special Committee and the SPI Board of Directors based their
conclusion on the following factors:  (i) the Merger provides SPI Shareholders
with a choice of converting their investment into an investment in PSI or, with
respect to up to 20% of the outstanding SPI Common Stock (less any Dissenting
Shares), receiving cash for their investment; (ii) the properties of SPI have
been appraised by an independent appraiser and SPI has received a fairness
opinion from Robert A. Stanger & Co. Inc. ("Stanger") relating to the
consideration to be received in the Merger; (iii) the Merger is required to be
approved by SPI Shareholders and, subject to certain limitations, these
shareholders

                                       7
<PAGE>
 
will have the right to exercise Dissenters' Rights; and (iv) based on certain
significant assumptions, qualifications and limitations, the consideration being
offered in the Merger compares favorably with other alternatives.

     ABSENCE OF ARM'S LENGTH NEGOTIATION.  The terms of the Merger are not the
result of arm's length negotiation.  The SPI Board of Directors does not believe
that the absence of independent representatives to negotiate the Merger
undermines the fairness of the Merger because the terms of the Merger have been
reviewed and approved by the SPI Special Committee, comprised of independent
directors of SPI.

     FAIRNESS OPINION FROM STANGER.  Stanger was engaged by SPI through the SPI
Special Committee to deliver a written summary of its determination as to the
fairness of the consideration to be received in the Merger, from a financial
point of view, to the public shareholders of SPI.  The full text of the opinion
is set forth in Appendix C to this Proxy Statement and Prospectus.  Subject to
the assumptions, qualifications and limitations contained therein, the fairness
opinion concludes that, as of the date of the fairness opinion, the
consideration to be received in the Merger is fair to the public shareholders of
SPI, from a financial point of view.  In arriving at its opinion, Stanger
considered, among other things, the independent appraised value of the portfolio
of properties of SPI, the estimated liquidation value of SPI prepared by SPI,
based upon liquidation of the portfolio on a property-by-property basis,
financial analyses and projections prepared by SPI concerning the going-concern
value from continuing operation of SPI as a stand-alone entity, and a comparison
of the historical market prices of the common stock of SPI with the
consideration offered in the Merger.  Stanger was not requested to, and
therefore did not:  (i) select the method of determining the consideration
offered in the Merger; (ii) make any recommendation to SPI Shareholders with
respect to whether to approve or reject the Merger or whether to select the cash
or common stock option in the Merger; or (iii) express any opinion as to the
business decision to effect the Merger, alternatives to the Merger, 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.  See "The Merger -- Fairness Opinion from Stanger."

COMPARISON OF SPI COMMON STOCK WITH PSI COMMON STOCK

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


                 SPI                                      PSI

                       INVESTMENT OBJECTIVES AND POLICIES

To provide (i) quarterly cash            To maximize funds from operations
distributions from operations and        ("FFO") allocable to holders of PSI
(ii) long-term capital gains through     Common Stock and to increase
appreciation in the value of             shareholder value through internal
properties.                              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."

                                       8
<PAGE>
 
                 SPI                                      PSI

       SPI Shareholders who receive PSI Common Stock in the Merger will be
  changing their investment from holding an interest in an entity engaged solely
  in the ownership of mini-warehouses to holding an investment in a fully-
  integrated real estate company, specializing in all aspects of the mini-
  warehouse industry.  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

Has not incurred borrowings in              Has incurred borrowings in
acquisition of properties, although         furtherance of its investment
not precluded by organizational             objectives, subject to certain
documents.                                  limitations.

       PSI, unlike SPI, has incurred debt in the ordinary course of business and
  reinvests proceeds from borrowings.  The incurrence of debt increases the risk
  of loss of investment.

                      PROPERTIES (As of December 31, 1995)

Six wholly owned properties, one          Direct and indirect equity interests
joint venture property interest and       in 1,050 properties in 37 states.
one parcel of vacant land in six
states.

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

                   LIQUIDITY, MARKETABILITY AND DISTRIBUTIONS

SPI Common Stock is traded on the        PSI Common Stock is traded on the
AMEX.  During the 12 months ended        NYSE.  During the 12 months ended
December 31, 1995, the average daily     December 31, 1995, the average daily
trading volume of SPI Common Stock       trading volume of PSI Common Stock
was 3,051 shares.                        was 59,432 shares (52,913 shares if
                                         May 1995, during which PSI was
                                         engaged in a public offering of
                                         Common Stock, is 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 SPI and PSI
  out of any funds legally available for that purpose.  SPI 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 SPI Shareholder who receives PSI Common Stock in the Merger should have
  an investment for which the market is broader and more active than the market
  for SPI Common Stock.  Distributions on PSI Common Stock are subject, however,
  to priority of preferred stock.

                                       9
<PAGE>
 
                 SPI                                      PSI

            ADDITIONAL ISSUANCES OF SECURITIES AND ANTI-TAKEOVER PROVISIONS

Subject to the rules of the AMEX and     Subject to the rules of the NYSE and
applicable provisions of California      applicable provisions of California
law, SPI can issue authorized common     law, PSI has issued and intends to
and preferred stock without              continue to issue authorized common
shareholder approval.                    and preferred stock without
                                         shareholder approval.

     Given the ownership level of PSI Common Stock by the Hughes Family, PSI
should be in a better position to deter attempts to obtain control in
transactions not approved by PSI's Board of Directors than SPI, and PSI
Shareholders could be less likely to benefit from a takeover not approved by
PSI's Board of Directors than would SPI Shareholders in a similar circumstance.

                                       10
<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>
                                                                          Years Ended December 31,
                                                ----------------------------------------------------------------------------
                                                  1991          1992          1993         1994             1995
                                                --------      --------      --------     --------   ------------------------
                                                      ($ In thousands, except per share data)       Historical   Proforma(1)
                                                                                                    ----------   -----------
<S>                                             <C>           <C>           <C>          <C>        <C>           <C>
OPERATING DATA:
 
Total revenues                                  $ 93,528      $ 97,448      $114,680     $147,196   $  212,650    $  268,076
Depreciation and amortization                     21,773        22,405        24,998       28,274       40,760        53,727
Interest expense                                  10,621         9,834         6,079        6,893        8,508        15,930
Minority interest in income                        6,693         6,895         7,291        9,481        7,137         6,992
Net income                                        11,954        15,123        28,036       42,118       70,386       108,443
                                                                       
BALANCE SHEET DATA                                                     
 (AT END OF PERIOD):                                                   
                                                                       
Total cash and cash equivalents                 $  6,439      $  8,384      $ 10,532     $ 20,151   $   80,436    $   80,436
Total assets                                     548,220       537,724       666,133      820,309    1,937,461     1,937,461
Total debt                                       104,244        69,478        84,076       77,235      158,052       158,052
Shareholders' equity                             188,113       253,669       376,066      587,786    1,634,503     1,634,503
                                                                       
PER SHARE OF COMMON STOCK:                                             
                                                                       
Net income                                      $    .81      $    .90      $    .98     $   1.05   $      .95    $     1.05
Distributions(2)                                     .82           .84           .84          .85          .88           .88
Book value (at end of period)(3)                   12.75         12.02         11.93        12.66        13.99         13.99
Weighted average shares of                                             
  Common Stock (in thousands)                     14,751        15,981        17,558       24,077       41,171        71,736
</TABLE>

                                       11
<PAGE>
 
                                SPI - HISTORICAL
<TABLE>
<CAPTION>
                                                       Years Ended December 31,
                                            -----------------------------------------------
                                             1991      1992      1993      1994      1995
                                            -------   -------   -------   -------   -------
                                                ($ In thousands, except per share data)
<S>                                         <C>       <C>       <C>       <C>       <C>
 
OPERATING DATA:
 
Total revenues                              $ 3,653   $ 3,634   $ 3,447   $ 3,557   $ 3,746
Depreciation and amortization                   102       108       341       612       777
Net income                                    3,070     3,097     2,373     1,765     1,310
 
BALANCE SHEET DATA (AT END OF PERIOD):
 
Total cash and cash equivalents             $   400   $   286   $ 2,280   $ 2,241   $ 3,608
Total assets                                 28,783    28,519    28,361    28,956    28,308
Total debt                                       --        --        --        --        --
Shareholders' equity                         27,898    27,647    27,710    27,433    27,002
 
PER SHARE OF COMMON STOCK:
 
Net income                                  $   .91   $   .92   $   .71   $   .53   $   .39
 
Distributions(4)                               1.00      1.00       .69       .61       .52
 
Book value (at end of period)                  8.31      8.25      8.28      8.19      8.06
 
Weighted average shares of
 common stock (in thousands)                  3,358     3,348     3,348     3,348     3,348
 
</TABLE>
_______________

(1) Historical information of PSI for 1995 has 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.

(2) For federal income tax purposes distributions are from ordinary income.  The
    distributions for generally accepted accounting principles ("GAAP") were
    from investment income.

(3) Book value per share for PSI in 1995 is based on the number of shares of
    Common Stock and Class B Common Stock outstanding at December 31, 1995.

(4) For federal income tax purposes, distributions for (a) 1991 consist of $.99
    of ordinary income and $.01 of return of capital, (b) distributions for 1992
    consisted of $.95 of ordinary income and $.05 of return of capital and (c)
    distributions for 1993, 1994 and 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
    1991 of $.09 and for 1992 of $.08.  All distributions for 1993, 1994 and
    1995 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.

                                       12
<PAGE>
 
RELATIONSHIPS

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

BEFORE THE MERGER

                             [CHART OMITTED HERE]

                            Description of Graphic

     Chart illustrating the affiliated relationships among SPI, PSI and certain
affiliates before the Merger: BWH owns 51% of PSI and Public Shareholders own
49% of PSI; PSI (which is the Property Manager and Adviser of SPI) owns 9% of 
SPI and Public Shareholders own 91% of SPI.



SOLID LINES INDICATE OWNERSHIP INTERESTS AND BROKEN LINES INDICATE OTHER
RELATIONSHIPS.



               (See notes on succeeding page.)

                                       13
<PAGE>
 
AFTER THE MERGER
(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 51% of PSI and Public Shareholders own 
49% of PSI.


 
BWH = B. Wayne Hughes. Mr. Hughes is the chairman of the board and chief 
      executive officer of SPI and PSI
SPI = Storage Properties, Inc.
PSI = Public Storage, Inc. Mr. Hughes and members of his family own 51% of the
      PSI Common Stock (55% upon the conversion of PSI's Class B Common Stock).

                                       14
<PAGE>
 
                    RISK FACTORS AND MATERIAL CONSIDERATIONS

     The Merger involves the following factors which should be considered by SPI
Shareholders, including the following:

NO ARM'S LENGTH NEGOTIATION OR UNAFFILIATED REPRESENTATIVES

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

CHANGE IN NATURE OF INVESTMENT

     The nature of the investment of SPI Shareholders who receive PSI Common
Stock is being changed from holding an interest in an entity engaged solely in
the ownership of mini-warehouses to holding an investment in a fully-integrated
real estate company which is engaged in all aspects of the mini-warehouse
industry, including property development and management.

UNCERTAINTY REGARDING MARKET PRICE OF PSI COMMON STOCK

     The number of shares of PSI Common Stock that would be received by SPI
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 SPI
Shareholders' meeting.  Since the market price of PSI Common Stock fluctuates,
the market value of PSI Common Stock that holders of SPI Common Stock may
receive in the Merger may decrease following establishment of the number of
shares.  In addition, because of increased selling activity following issuance
of shares in the Merger and other factors, the market value of PSI Common Stock
that SPI Shareholders may receive in the Merger may decrease following the
Merger.

POTENTIAL LOSS OF FUTURE APPRECIATION

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

LIMITATION ON DISSENTERS' RIGHTS OF APPRAISAL

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

LOWER LEVEL OF DISTRIBUTIONS TO SPI 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 Merger is established, the level
of distributions to SPI Shareholders who receive PSI Common Stock in the Merger
may be lower after the Merger than before.  Based on a market price of PSI
Common Stock of $21 and the current regular quarterly distribution rate for PSI
($.22 per share) and SPI ($.08 per share), SPI Shareholders would receive
approximately $.003 (4.3%) less in regular quarterly distributions per share of
SPI Common Stock after the Merger from PSI than before the Merger from SPI and
approximately $.001 less per share in regular quarterly distributions for each
$.25 (1.2%) increase in the market price of PSI Common Stock above $21.

                                       15
<PAGE>
 
CONTROL AND INFLUENCE BY THE HUGHES FAMILY

     The Hughes Family owns approximately 51% of the outstanding shares of PSI
Common Stock (approximately 55% 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, 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
1996 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.

                                       16
<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.  Any accumulated
earnings and profits of PSMI carried over to PSI in the PSMI Merger.  To retain
its REIT status, PSI would have had to distribute any acquired earnings and
profits on or before December 31, 1995.  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, 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 Merger, 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 Merger.  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 $770 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 $72 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."

                                       17
<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 SPI, 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 December
31, 1995, PSI's debt as a percentage of its total capitalization was
approximately 9%.

MERGER CONSIDERATION BASED ON APPRAISALS INSTEAD OF ARM'S LENGTH NEGOTIATION

     The consideration to be received by SPI Shareholders is based on a third
party appraisal of the portfolio of real property assets valuing the real
property assets of SPI at $23,500,000.  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
appraised values; the sales price might be higher or lower.

TAX TO SPI SHAREHOLDERS

     SPI Shareholders who receive cash in connection with the Merger in exchange
for their SPI Common Stock will recognize taxable gain (loss) to the extent that
the amount of cash received exceeds (is less than) the adjusted basis of such
shareholder in his or her SPI Common Stock.  A SPI Shareholder receiving a
combination of cash and PSI Common Stock in the Merger in exchange for his or
her SPI 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 SPI 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 REIT Distributions will be taxable to all SPI Shareholders as
ordinary income.

OPERATING RISKS

     General Risks of Real Estate Ownership.  Like SPI, 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 SPI, 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 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.

                                       18
<PAGE>
 
     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) 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

                                       19
<PAGE>
 
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.  There are approximately
73 million shares of PSI Common Stock and seven million shares of Class B Common
Stock outstanding.  Of these shares, approximately 37.2 million shares of PSI
Common Stock are tradeable without restriction (except as to affiliates of PSI)
or further registration under the Securities Act.  The remaining approximately
35.8 million shares of PSI Common Stock and seven million shares of Class B
Common Stock were issued in the PSMI 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 27.3 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 MERGER

     PSI and its affiliates have conflicts of interest in connection with the
Merger.  PSI owns approximately 9% of the SPI Common Stock.  See "Summary --
Relationships."

     The Merger has been initiated and structured by individuals who are
executive officers of PSI and SPI, and the Merger has not been negotiated at
arm's length.  No independent representatives have been retained to negotiate
the terms of the Merger on behalf of SPI.  If such representatives had been
retained, the terms of the Merger might have been more favorable to SPI
Shareholders.  Although independent representatives were not retained by SPI, it
has created a special committee comprised of independent directors, which has
engaged an independent financial advisor, to evaluate the Merger.  The Special
Committee has reviewed the terms of the Merger and recommends that the SPI
Shareholders vote for the Merger.  Based upon the use of an independent
appraisal firm to determine the value of consideration to be paid to SPI
Shareholders, the fairness opinions and the participation of the SPI Special
Committee, the SPI Board of Directors considered that the engagement of
independent representatives to negotiate the terms of the Merger was not
necessary or cost effective.

                                       20
<PAGE>
 
                                   THE MERGER

GENERAL

     As a result of the Merger, the separate existence of SPI would cease.  Upon
consummation of the Merger, each outstanding share of SPI Common Stock (other
than 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 SPI Common Stock (not to exceed 20% of the
outstanding SPI Common Stock, or 669,633 shares, less any Dissenting Shares),
upon a Cash Election, $7.31 in cash, subject to reduction as described below, or
(ii) that number of shares of PSI Common Stock (subject to rounding) determined
by dividing $7.31, 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 SPI Shareholders.  If a SPI Shareholder does not make a Cash
Election, all of his or her SPI Common Stock would be converted into PSI Common
Stock in the Merger.  The consideration paid to SPI Shareholders by PSI in the
Merger will be reduced on a pro rata basis by the Required REIT Distributions
(estimated to be approximately $.20 per share).  The consideration received by
SPI Shareholders in the Merger, however, along with any Required REIT
Distributions, will not be less than $7.31 per share of SPI Common Stock, which
amount represents the market value of SPI's real estate assets at February 29,
1996 (based on an independent appraisal) and the estimated net asset value of
its other assets at June 30, 1996.  SPI Shareholders would receive the Required
REIT Distributions upon any liquidation of SPI, regardless of the Merger.
Additional pre-merger cash distributions would be made to the SPI Shareholders
to cause SPI's estimated net asset value as of the date of the Merger to be
substantially equivalent to its estimated net asset value as of June 30, 1996.
The SPI Common Stock held by PSI will be cancelled in the Merger.

     It is estimated that the aggregate consideration (cash and PSI Common
Stock) to be paid by PSI to purchase all of the SPI Common Stock in the Merger
and to pay related costs and expenses would be $25,240,000 (assuming no Required
REIT Distributions) and that the total amount of cash that would be required by
PSI to purchase the SPI Common Stock from SPI Shareholders making Cash Elections
and to pay the costs and expenses of the Merger would be $5,660,000 (assuming
maximum Cash Elections).  See "-- Determination of Payments to be Received by
SPI Shareholders in Connection with the Merger" and "-- Costs of the Merger."
These amounts would be reduced to the extent SPI must pay a Required REIT
Distribution.

BACKGROUND

     GENERAL.  THE MERGER HAS BEEN INITIATED AND STRUCTURED BY INDIVIDUALS WHO
ARE EXECUTIVE OFFICERS OF BOTH PSI AND SPI.  THE SPI SPECIAL COMMITTEE, COMPOSED
OF INDEPENDENT DIRECTORS OF SPI, HAS REVIEWED THE TERMS OF THE MERGER, AND THE
SPI BOARD OF DIRECTORS, BASED ON RECOMMENDATIONS OF THE SPI SPECIAL COMMITTEE,
WHICH THE SPI BOARD OF DIRECTORS HAS ADOPTED, AND ON THE OPINION OF A FINANCIAL
ADVISOR IN WHICH IT CONCURS, BELIEVES THAT THE MERGER IS FAIR TO THE PUBLIC
SHAREHOLDERS OF SPI, AND RECOMMENDS THAT SPI SHAREHOLDERS VOTE FOR THE MERGER.

     SPI was organized in 1989 to make investments in mini-warehouses.  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
March 1996, PSI merged with five REITs, which like SPI had been affiliated with
PSI.

     SPI BOARD ACTIONS.  The SPI Board of Directors consists of five members:
two executive officers of PSI, one other director of PSI and two independent
directors, Vern O. Curtis and Jack D. Steele.

     At a telephonic meeting on January 30, 1996 of the SPI Board of Directors,
which included officers and in-house counsel, the SPI Board of Directors
appointed a special committee of independent directors, consisting of Vern O.
Curtis and Jack D. Steele, to consider and make recommendations to the Board of
Directors regarding a proposed merger of SPI into PSI.  Mr. Curtis and Mr.
Steele were the members of the special committees that considered the mergers of
five other REITs into PSI between September 1994 and March 1996.  Following the
board meeting, the SPI Special Committee held an organizational meeting by
telephone, which included officers, and discussed the qualifications of Stanger
and Wilson.  Following the discussion, the SPI Special Committee approved
Wilson, on behalf

                                       21
<PAGE>
 
of SPI and PSI, to appraise the properties of SPI, determined to engage Hogan &
Hartson L.L.P. as special counsel to represent and advise the SPI Special
Committee as to its legal obligations in making recommendations regarding the
proposed merger with PSI and approved the engagement of Stanger to render an
opinion as to the fairness, from a financial point of view, of the consideration
to be received by SPI Shareholders in the Merger.  Wilson, Hogan & Hartson
L.L.P. and Stanger had acted in similar capacities in connection with the
mergers of five other REITs into PSI.

     On February 27, 1996, the SPI Special Committee held a meeting, which
included officers of SPI, and discussed the portfolio appraisal of SPI's
properties, the projected liquidation value of SPI and the payment to PSI under
the Advisory Agreement.  During the discussion it was noted that the amount
payable to PSI under the Advisory Agreement was less than the amount to which
PSI would be entitled upon the termination of the Advisory Agreement by either
SPI and PSI and that either party is now entitled to terminate the Advisory
Agreement at any time.

     On March 19, 1996, the SPI Special Committee held a meeting, which included
officers of SPI.  Representatives of Stanger and Wilson participated by
telephone for a portion of the meeting.  First, an officer of SPI described the
mechanics of arriving at the value per share of SPI Common Stock.  He noted that
a disposition of SPI's properties in the Merger results in $2,270,000 being
payable to PSI under the Advisory Contract and this results in a reduction in
the number of shares of PSI Common Stock being issued in the Merger.  The
officer of SPI contrasted this amount with the termination fee of $3,903,900
that PSI could have elected to receive under the Advisory Contract.  Next, a
representative of Wilson described briefly the methodologies used in appraising
SPI's properties.  He noted that increased liquidity in the market for mini-
warehouses generally had increased recent sales prices.  He also noted that two
of SPI's properties were located in distressed areas, that one of the properties
was on leased land, which tends to reduce the overall value of SPI's properties
and that the portfolio included a parcel of vacant land.  The Stanger
representatives presented Stanger's analysis, which included the following
items:  (1) they briefly reviewed Stanger's recent experience relating to mini-
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 appeared to be
approximately 9.6% (9.2% excluding the property on leased land), 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, subject to
receipt of additional information from Wilson, 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 SPI's properties on a property-by-property basis) prepared by
SPI based on certain information provided by Wilson and that, subject to final
verification, the projected consideration per share resulting from liquidation
under that analysis appeared to be less than the consideration offered in the
Merger; (7) they noted that Stanger reviewed a going concern analysis and that,
subject to final verification, the estimated value per share on a going concern
basis appeared to be lower than the consideration offered in the Merger; and (8)
they indicated that, while they had not completed their review, at this time
they believed that Stanger would be prepared to render its opinion that the
consideration to be received in the Merger is fair to the public shareholders of
SPI from a financial point of view.  Following the discussion, the SPI Special
Committee expressed the belief that the Merger is fair to, and in the best
interests of, public shareholders of SPI and determined to recommend to the
Board that the Merger be approved and to recommend that SPI Shareholders vote
for the Merger.

     Following the meeting of the SPI Special Committee, the SPI Board of
Directors held a telephonic meeting to consider the Merger.  Also present were
officers of SPI.  The members of the SPI Special Committee reported on the
meeting with representatives of Stanger and Wilson.  An officer of SPI described
the mechanics of arriving at the value per share of SPI Common Stock.  The Board
discussed the Advisory Contract and SPI's portfolio of properties.  Based on
recommendations of the SPI Special Committee, which were adopted by the SPI
Board of Directors, the SPI Board of Directors expressed the belief that the
Merger is fair to, and in the best interests of, public shareholders of SPI,
approved the Merger, determined to recommend that SPI Shareholders vote for the
Merger and approved the filing with the Commission of preliminary proxy
materials.  See "-- Comparison of Consideration to be Received in the Merger to
Other Alternatives."

                                       22
<PAGE>
 
     PUBLIC ANNOUNCEMENT OF THE MERGER AND COMMISSION FILINGS.  On March 4,
1996, PSI and SPI publicly announced the general terms of the Merger.  On March
29, 1996, SPI filed preliminary proxy materials with the Commission.  On
_______________, 1996, PSI filed a registration statement, which was declared
effective on _______________, 1996.

REASONS FOR THE MERGER AND TIMING

     The reasons for the decision of the SPI Special Committee and SPI Board of
Directors to recommend the Merger include:

     .    The Merger provides SPI Shareholders with the choice of either (A)
          converting their investment in SPI into an investment in PSI, which
          generally owns the same type of properties as SPI, on a tax-free basis
          (assuming the Merger 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 SPI Common Stock (less any
          Dissenting Shares), receiving in cash the amounts they would receive
          if the properties of SPI were sold at their appraised values and the
          corporation were liquidated (without any reduction for real estate
          commissions and other sales expenses).  See "-- Recommendation to SPI
          Shareholders and Fairness Analysis."

     .    The SPI Special Committee and SPI Board of Directors believe that the
          Merger is more advantageous to SPI Shareholders than any of the
          alternatives.  See "-- Alternatives to Merger" and "-- Recommendation
          to SPI Shareholders and Fairness Analysis."

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

ALTERNATIVES TO THE MERGER

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

     LIQUIDATION

          BENEFITS OF LIQUIDATION.  An alternative to the Merger would be to
liquidate the assets of SPI, distribute the net liquidation proceeds to its
shareholders in proportion to their share ownership and thereafter dissolve SPI.
Through such liquidation, SPI would provide for a final wrapping up of their
shareholders' interests in the corporation.  SPI Shareholders would receive cash
liquidation proceeds (as they will as to a portion of their investment if they
make Cash Elections).  If SPI liquidated its assets through asset sales to
unaffiliated third parties, its shareholders would not need to rely upon a real
estate portfolio appraisal of the fair market value of its real estate assets.
Such assets would be valued through arm's length negotiations between SPI and
prospective purchasers.

          DISADVANTAGES OF LIQUIDATION.  Various conditions in the financial and
real estate markets have had a materially adverse impact upon the value of
commercial real estate.  These conditions 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 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 board of directors and special committee
of SPI, a less than optimal time to liquidate the real estate assets of SPI.
The proceeds available for reinvestment after liquidation would be reduced as a
result of real estate commissions and other sales expenses (estimated at $.37
per share of SPI Common Stock).

                                       23
<PAGE>
 
          SPI 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 SPI would
require approval by the holders of a majority of outstanding common stock.  Upon
the dissolution of SPI, its 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 a holder of approximately 9% of the shares of SPI
Common Stock, PSI would receive approximately 9% of the available funds in the
liquidation (in addition to amounts it would receive in connection with the
Advisory Agreement).  The process for liquidating the assets of SPI would in
large measure be within the control of the SPI Board 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 SPI Board of Directors may engage real estate brokers, investment
bankers, financial consultants and others to assist with the disposition of the
corporation's assets.  These persons may assist with the identification of
prospective purchasers, arrangements for asset financing, and assistance with
the structure of the transaction.  The SPI Board of Directors, as fiduciaries to
SPI Shareholders, remains responsible for determining the terms and conditions
of the transaction.  One of the more significant considerations for the SPI
Board 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 SPI because it would depend on market conditions at the
time of liquidation.

     CONTINUED OPERATION OF SPI

          BENEFITS OF CONTINUATION.  Another alternative to the Merger would be
to continue SPI in accordance with its existing business plan, with SPI
remaining as a separate legal entity and with its own assets and liabilities.
Nothing requires the liquidation or merger of SPI at this time, and SPI 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 from the 1984-1988 levels, there
has been a corresponding improvement in the financial performance of existing
properties.  This improvement is evidenced by the performance of SPI's mini-
warehouses.  For example, from 1992 to 1995, occupancy per square foot increased
from an average of 76% to 91%, and realized monthly rents from an average of
$.71 per square foot to $.88 per square foot (assuming all facilities had been
owned by SPI for all periods).  Assuming that there is no substantial new
development of mini-warehouses in the foreseeable future, the SPI 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 years.  Should such improvements continue, the value of
SPI's properties would be expected to increase.  See "Description of SPI's
Properties."

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

                                       24
<PAGE>
 
          There are no restrictions in SPI's organizational documents on the
investment of cash flow and issuance of securities by SPI, and SPI is not
precluded from taking advantage of new real estate opportunities through the
reinvestment of cash flow and the investment of proceeds from the issuance of
securities.

          The SPI Board of Directors and the SPI Special Committee believe that
SPI Shareholders could better take advantage through PSI than through SPI of the
current market for REIT securities for the following reasons.  First, PSI has a
larger capital base.  At December 31, 1995, SPI had total shareholders' equity
of $27,002,000 compared with PSI's total shareholders' equity of $1,634,503,000
(including preferred stock) and $1,098,383,000 (without preferred stock).
Second, the market for PSI Common Stock should be more liquid than the market
for common stock of SPI.  During the 12 months ended December 31, 1995, the
average daily trading volume of SPI Common Stock on the AMEX was 3,051.  In
comparison, during the 12 months ended December 31, 1995, the average daily
trading volume of PSI Common Stock on the NYSE was 59,432 shares (52,913 shares
if May 1995, during which PSI was engaged in a public offering of common stock,
is excluded).  Third, PSI has broader geographic diversification than SPI.  At
December 31, 1995, SPI owned seven properties and one parcel of vacant land in
six states and PSI owned equity interests (directly, as well as through general
and limited partnership interests and stock interests) in 1,050 properties in 37
states.  For additional information on the properties owned by SPI and PSI, see
"-- Comparison of SPI Common Stock with PSI Common Stock," "Description of SPI's
Properties" and "Description of PSI's Properties."

NO SOLICITATION OF OTHER PROPOSALS

     Neither the SPI Board of Directors nor the SPI Special Committee solicited
any other proposal for the acquisition of SPI or its properties.  The SPI Board
of Directors agreed to the Merger Agreement, which includes a provision against
soliciting other offers to buy, because it believes that the potential
advantages to SPI Shareholders described under "-- Potential Advantages of the
Merger" are more likely to be achieved through the Merger than in a transaction
with another party.  In particular, assuming the Merger qualifies as a tax-free
reorganization, no taxable gain or loss will be recognized by SPI Shareholders
who exchange their SPI Common Stock solely for PSI Common Stock.  The Required
REIT Distributions generally will be taxable to all SPI Shareholders as ordinary
income to the extent of the corporation's earnings and profits.  The proceeds
available for reinvestment after liquidation would be reduced as a result of
real estate commissions and other sales expenses (estimated at $.37 per share of
SPI Common Stock).  However, another proposal could have been for a higher price
and possibly also structured as a merger qualifying as a tax-free
reorganization.  Under California law, most acquisitions of SPI or its
properties would require approval by SPI Shareholders.  PSI owns approximately
9% of the SPI Common Stock.

DETERMINATION OF PAYMENTS TO BE RECEIVED BY SPI SHAREHOLDERS IN
CONNECTION WITH THE MERGER

     In connection with the Merger, SPI Shareholders will receive a value of
$7.31 (less the amount of any Required REIT Distributions) per share of SPI
Common Stock in cash, PSI Common Stock, or a combination of the two, calculated
as follows:

     1.  The market value (not book value) of SPI's real estate assets has been
determined by Wilson, showing such values as of February 29, 1996.  In valuing
SPI'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 (except with respect to the vacant land) to be applicable to SPI'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 SPI's portfolio of operating real estate assets based on
property operations (before non-recurring charges) for the 12 months ended
February 29, 1996 averaged 9.66% (9.20% if the leasehold interest is excluded).
Wilson's valuation is as of February 29, 1996 in the context of the information
available on that date.  See "-- Real Estate Portfolio Appraisals by Wilson."

     2.  SPI's net asset value has been computed as (a) the market value of
SPI's real estate assets as of February 29, 1996 ($23,500,000) plus (b) the
estimated book value of SPI's non-real estate assets as of June 30, 1996 (a
total of $3,620,000) less (c) SPI's estimated liabilities as of June 30, 1996 (a
total of $369,000) less (d) the estimated amount payable to PSI under the
Advisory Agreement ($2,270,000).

                                       25
<PAGE>
 
     3.  SPI's net asset value per share of SPI Common Stock was calculated at
$7.31 by dividing SPI's net asset value (as computed in 2 above, $24,481,000) by
the number of outstanding shares of SPI Common Stock (3,348,167).

     4.  Upon completion of the Merger, each share of SPI Common Stock (other
than Dissenting Shares) would be converted into the right to receive $7.31 in
cash (with respect to up to 20% of the outstanding SPI Common Stock, less any
Dissenting Shares), subject to reduction as described below, or that number of
shares of PSI Common Stock determined by dividing $7.31, 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 SPI Shareholders.  Pre-merger cash distributions would
be made to SPI Shareholders to cause SPI's estimated net asset value as of the
date of the Merger to be substantially equivalent to its estimated net asset
value as of June 30, 1996.  The consideration paid by PSI to SPI Shareholders in
the Merger will be reduced on a pro rata basis by the amount of any Required
REIT Distributions.  However, the consideration received by SPI Shareholders in
the Merger along with the Required REIT Distributions (which will be paid in
cash) will not be less than $7.31.

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

                            COMPUTATION OF PAYMENTS
<TABLE>
<CAPTION>
     Net book          Appraised        Book value         SPI's          SPI's net          Payments
     value of            market          of SPI's        net asset       asset value        received in
    SPI's real         value of         other net        value(1)(3)      per share       connection with
      estate             SPI's         assets(1)(3)                       of SPI          the Merger per
    portfolio(1)      real estate                                         Common          original $1,000
                      portfolio(2)                                        Stock(1)         investment in
                                                                                             SPI(4)
- ----------------------------------------------------------------------------------------------------------
<S>                   <C>              <C>              <C>             <C>              <C>

  $24,187,000         $23,500,000        $981,000        $24,481,000       $7.31               $731
</TABLE> 
_______________

(1) Estimated as of June 30, 1996.  Does not reflect the effect of Required REIT
    Distributions, estimated to be approximately $.20 per share or $670,000 in
    the aggregate.  SPI Shareholders would receive the Required REIT
    Distributions upon any liquidation of SPI, regardless of the Merger.

(2) As of February 29, 1996.

(3) Reflects estimated amount payable to PSI under the Advisory Agreement
    ($2,270,000).  PSI would be entitled to receive $3,905,800 upon termination
    of the Advisory Agreement by either SPI or PSI.

(4) Does not include quarterly cash distributions to SPI Shareholders.  The
    market price of PSI Common Stock may fluctuate following establishment of
    the number of shares to be issued to SPI Shareholders in the Merger and
    prior to issuance and could decrease as a result of increased selling
    activity following issuance of shares in the Merger and other factors.

                                       26
<PAGE>
 
POTENTIAL ADVANTAGES OF THE MERGER TO SPI

     The principal potential benefits to SPI Shareholders who receive PSI Common
Stock include the following:

     ACQUISITION OF ADDITIONAL PROPERTIES.  The primary business activity of SPI
is operating the properties originally acquired.  SPI has not raised additional
capital, although not precluded by its articles of incorporation and bylaws.
PSI, on the other hand, has expanded, and is expected to continue to expand, its
asset and capital base.  PSI also borrows money to fund new acquisitions.
Accordingly, SPI Shareholders who receive PSI Common Stock in the Merger will be
investors in an entity that has grown, and is expected to continue to grow, as
new investments are made.

     INCREASED LIQUIDITY.  During the 12 months ended December 31, 1995, the
average daily trading volume of SPI Common Stock on the AMEX was 3,051 shares.
In comparison, during the 12 months ended December 31, 1995, the average daily
trading volume of PSI Common Stock on the NYSE was 59,432 shares (52,913 shares
if May 1995, during which PSI was engaged in a public offering of common stock,
is excluded).  Accordingly, the investment in PSI of SPI Shareholders who
receive PSI Common Stock in the Merger should have greater liquidity than their
current investment in SPI.

     POSSIBLE TAX-FREE TREATMENT.  The Merger is intended to qualify as a tax-
free reorganization.  Assuming such qualification, no taxable gain or loss will
be recognized in connection with the Merger by SPI Shareholders who exchange
their SPI Common Stock solely for PSI Common Stock.  However, the Required REIT
Distributions will be taxable to all SPI Shareholders as ordinary income.  See
"Certain Federal Income Tax Matters -- The Merger."

RECOMMENDATION TO SPI SHAREHOLDERS AND FAIRNESS ANALYSIS

     CONCLUSIONS.  Based upon an analysis of the Merger, the SPI Special
Committee and SPI Board of Directors have concluded (i) that the terms of the
Merger are fair to SPI Shareholders, (ii) after comparing the potential benefits
and detriments of the Merger with alternatives, that the Merger is more
advantageous to SPI Shareholders than such alternatives and (iii) that SPI
Shareholders should vote for the Merger.

     Although the SPI Board of Directors and SPI Special Committee reasonably
believe the terms of the Merger are fair to SPI Shareholders and recommend that
SPI Shareholders vote for the Merger, affiliates of PSI are members of the SPI
Board of Directors, and PSI has other significant relationships with SPI and
conflicts of interest with respect to the Merger.  The Merger has been initiated
and structured by individuals who are executive officers of SPI and who are also
affiliated with PSI.  The SPI Special Committee, composed of independent
directors, has reviewed and approved the terms of the Merger.  See "Summary --
Relationships" and "Conflicts of Interest."

     MATERIAL FACTORS UNDERLYING CONCLUSIONS OF SPECIAL COMMITTEE AND BOARD OF
DIRECTORS OF SPI.  The following is a discussion of the material factors
underlying the conclusions of the SPI Special Committee and SPI Board of
Directors.  The SPI Board of Directors and SPI Special Committee have not
quantified the relative importance of these factors.

     1.  Consideration Offered.  The SPI Board of Directors and SPI Special
Committee believe that (i) the proposal that the consideration to be paid to SPI
Shareholders in the Merger be based on the value of the assets of SPI is
reasonable, (ii) the net asset value of SPI represents a fair estimate of the
value of its assets, net of liabilities, and constitutes a reasonable basis for
determining the consideration to be received by SPI Shareholders and (iii) the
amount payable to PSI under the Advisory Agreement is fair because it represents
the amount PSI would receive under the Advisory Agreement upon the sale of SPI's
properties and is less than the amount to which PSI would be entitled upon the
termination of the Advisory Agreement by either SPI or PSI.  There was no
negotiation regarding the basis for determining the consideration to be paid to
SPI Shareholders in the Merger or the amount payable to PSI under the Advisory
Agreement.  See "-- Background."

     2.  Choice as to Form of Consideration.  The Merger provides SPI
Shareholders with the choice of either (A) converting their investment into an
investment in PSI, which generally owns the same type of properties as SPI,

                                       27
<PAGE>
 
on a tax-free basis (assuming the Merger is a tax-free reorganization 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 SPI Common Stock
(less any Dissenting Shares), receiving in cash the amount they would receive if
SPI's properties were sold at their appraised values and SPI were liquidated
(without any reduction for real estate commissions and other sales expenses).

     3.  Independent Portfolio Appraisals and Fairness Opinions.  The
conclusions of the SPI Special Committee and SPI Board of Directors are
partially based upon the portfolio appraisals prepared by Wilson and Stanger's
fairness opinion.  The SPI Special Committee and SPI Board of Directors
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
opinion.  The SPI Special Committee and SPI Board of Directors believe that the
engagement of Wilson and Stanger to provide the portfolio appraisals and the
fairness opinion, respectively, assisted the SPI Special Committee and SPI Board
of Directors in the fulfillment of their duties to SPI 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 Appraisal by Wilson" and "-- Fairness Opinion from Stanger."

     4.  Voting Procedures and Dissenters' Rights.  The SPI Special Committee
and SPI Board of Directors believe that the voting process and the rights of
dissenting shareholders of SPI support their conclusions as to the Merger.  The
Merger is required to be approved by a majority of the outstanding shares of SPI
Common Stock, as well as by a majority of the shares of SPI Common Stock voting
at the meeting of SPI Shareholders not held by PSI.  SPI Shareholders will have
the right to exercise Dissenters' Rights, although the SPI Special Committee and
SPI Board of Directors recognize that these rights may be exercised by SPI
Shareholders only if demands for payment are filed with respect to 5% or more of
the outstanding shares of SPI Common Stock.

     5.  Comparison of Payments to be Received at the Time of the Merger to
Other Alternatives.  The payments to be received at the time of the Merger of
$7.31 per share of SPI Common Stock compares favorably with (A) the trading
price of the SPI Common Stock immediately prior to the first announcement of the
Merger ($6.63) and during other periods, (B) a range of estimated going concern
value per share of SPI Common Stock ($6.11 to $7.27) and (C) an estimated
liquidation value per share of SPI Common Stock ($6.45).  The SPI Board of
Directors and SPI Special Committee recognize that this comparison is subject to
significant assumptions, qualifications and limitations.  See "-- Comparison of
Consideration to be Received in the Merger to Other Alternatives."

     6.  Lower Level of Distributions to SPI Shareholders After the Merger.
Depending on the market price of the PSI Common Stock during the period in which
the number of shares to be issued in the Merger is established, the level of
distributions to SPI Shareholders who receive PSI Common Stock in the Merger may
be lower after the Merger than before.  Based on a market price of PSI Common
Stock of $21 and the current regular quarterly distribution rate for PSI ($.22
per share) and SPI ($.08 per share), SPI Shareholders would receive
approximately $.003 (4%) less in regular quarterly distributions per share of
SPI Common Stock after the Merger from PSI than before the Merger from SPI and
approximately $.001 less per share in regular quarterly distributions for each
$.25 (1.2%) increase in the market price of PSI Common Stock above $21.

     7.  Conflicts of Interest.  The Merger has been initiated and structured by
individuals who are executive officers of SPI and who are also affiliated with
PSI.  Independent representatives were not engaged to negotiate these
arrangements on behalf of the public shareholders of SPI, and the terms of the
Merger are not the result of arm's length negotiations.  The consideration to be
received by SPI Shareholders in the Merger will be reduced as a result of
amounts payable to PSI under the Advisory Agreement.

     The SPI Special Committee and SPI Board of Directors do not believe that
the absence of independent representatives to negotiate the Merger undermines
the fairness of the Merger because the Merger has been reviewed and approved by
the SPI Special Committee, comprised of independent directors.  Based upon the
use of an independent appraisal firm, the Stanger fairness opinion and the
participation of the SPI Special Committee, the SPI Board of Directors and SPI
Special Committee considered that the engagement of such independent
representatives was not necessary or cost effective.

                                       28
<PAGE>
 
     COMPARISON OF BENEFITS AND DETRIMENTS.  Prior to concluding that the Merger
should be proposed to SPI Shareholders, the SPI Board of Directors and SPI
Special Committee considered several alternatives to the Merger.  The
alternatives considered by the SPI Board of Directors and SPI Special Committee
were liquidation and continuation of operations.  In order to determine whether
the Merger or one of its alternatives would be more advantageous to SPI
Shareholders, the SPI Board of Directors and SPI Special Committee compared the
potential benefits and detriments of the Merger with the potential benefits and
detriments of the alternatives.  See "-- Alternatives to Merger" for a
discussion of the potential benefits and detriments of each of these
alternatives.  Each of the Merger 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 SPI Board of Directors and SPI
Special Committee regarding the comparison of the Merger to the alternatives.

          (i) The SPI Board of Directors and SPI Special Committee favor the
     Merger over liquidation because they believe that (A) the Merger permits
     SPI 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) SPI should not be liquidated at this time
     (other than through the Merger that provides SPI Shareholders who receive
     PSI Common Stock with greater liquidity and increased geographic
     diversification, while retaining an interest in a similar type of
     properties which may increase in value), (C) the Merger provides SPI
     Shareholders, with respect to up to 20% of the outstanding SPI Common Stock
     (less any SPI Dissenting Shares) with the opportunity, if they so elect, to
     receive in cash the amounts they would receive if SPI's properties were
     sold at their appraised values and were liquidated (without any reduction
     for real estate commissions and other sales expenses) and (D) the amount
     being received by PSI in the Merger in respect of the Advisory Agreement is
     less than the amount to which PSI would be entitled upon the termination of
     the Advisory Agreement by either SPI or PSI.

          (ii) The SPI Board of Directors and SPI Special Committee have
     concluded that continued operation is not as attractive an alternative as
     the Merger because the Merger affords SPI Shareholders increased liquidity
     and the opportunity to participate in PSI, an entity that, unlike SPI, has
     grown, and is expected to continue to grow, as new investments are made.
     However, the SPI Board of Directors and SPI Special Committee recognize
     that the level of distributions to SPI Shareholders who receive PSI Common
     Stock may be reduced.  See "-- Recommendation to SPI Shareholders -- 6.
     Lower Level of Distributions to SPI Shareholders After the Merger."  The
     SPI Board of Directors and SPI Special Committee believe that SPI
     Shareholders would have better opportunities to participate in the current
     markets for equity securities of REITs through PSI than through SPI 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
Merger with its alternatives, the SPI Board of Directors and SPI Special
Committee have concluded that the Merger is more attractive to SPI Shareholders
than any of the alternatives.

COMPARISON OF CONSIDERATION TO BE RECEIVED IN THE MERGER TO OTHER ALTERNATIVES

     GENERAL. To assist SPI Shareholders in evaluating the Merger, the SPI Board
of Directors and SPI Special Committee compared the consideration to be received
in the Merger, i.e., a value of $7.31 per share (less the amount of any Required
REIT Distributions) of SPI Common Stock against: (i) the trading price of the
SPI Common Stock on the AMEX; (ii) estimates of the value of SPI on a
liquidation basis assuming that their assets were sold at their appraised fair
market value and the net proceeds distributed to the SPI Shareholders in
accordance with their share ownership in SPI; and (iii) estimates of the value
of SPI on a going-concern basis assuming that SPI 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 SPI Board of Directors
and SPI Special Committee 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 Merger is 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 SPI Board of Directors and SPI Special
Committee believe that analyzing the alternatives in terms of ranges of
estimated value, based on currently available

                                       29
<PAGE>
 
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.  SPI 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 SPI.  These assumptions relate, among other things, to:
projections as to SPI's future income, expenses, cash flow and other significant
financial matters; the capitalization rates that will be used by prospective
buyers when SPI'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 SPI Common Stock.  In addition,
these estimates are based upon certain information available to SPI 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 Merger.  The assumptions used have been determined by the SPI
Board of Directors and SPI Special Committee in good faith, and, where
appropriate, are based upon current and historical information regarding SPI and
current real estate markets, and have been highlighted below to the extent
critical to the conclusions of the SPI Board of Directors and SPI Special
Committee.  While SPI believes it has a reasonable basis for the assumptions
selected, the assumptions employed by it as to future events may not reflect its
actual experience.  The estimated values of alternate forms of consideration
would have been different had SPI 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 SPI Shareholders should carefully
consider the following discussions to understand the assumptions, qualifications
and limitations inherent in the presented valuations.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------- 
                                                         Estimated Going         Estimated Liquidation
Payments in the Merger        Trading Prices of              Concern             Value per Share of SPI 
 per Share of SPI                    SPI              Value per Share of SPI       Common Stock at      
 Common Stock                  Common Stock (2)         Common Stock (3)          Appraised Value (4)    
- -------------------------------------------------------------------------------------------------------- 
<S>                           <C>                     <C>                         <C> 
    $7.31(1)                  $6       $6 3/8          $6.11        $7.27                $6.45
- --------------------------------------------------------------------------------------------------------
</TABLE>

_______________

(1) Based on SPI's net asset value consisting of the independently appraised
    market value of SPI's real estate assets as of February 29, 1996, the
    estimated book value of its other net assets as of June 30, 1996 and
    estimated amount payable to PSI under the Advisory Agreement and assuming no
    Required REIT Distributions.  See "-- Determination of Payments to be
    Received by SPI Shareholders in Connection with the Merger."

(2) High and low sales prices on the AMEX composite tape for the fourth quarter
    of 1995, the last full calendar quarter prior to the announcement of the
    Merger.  On March 1, 1996, the closing price of SPI Common Stock was
    $6 5/8.

(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 SPI and the date of its liquidation.  See "-- Going-Concern
    Value."

(4) Based upon Wilson's real estate appraisal, less estimated expenses of
    liquidation.  Reflects termination fee of $3,905,800 payable to PSI under
    the Advisory Agreement.  See "-- Liquidation Values."

   TRADING PRICES OF SPI COMMON STOCK.  The SPI Board of Directors and SPI
Special Committee also considered that the trading price for SPI Common Stock
averaged $6.35, $6.28, $6.04 and $5.90 for the 20-day, 60-day, 180-day and 360-
day periods preceding the announcement of the proposed Merger and that the
closing price for SPI Common Stock on the last trading day prior to the first
announcement of the Merger was $6 5/8.  The SPI Board of Directors also
considered that the consideration offered in the Merger adjusted for interim
earnings of approximately $.13 per share (which amount represents increases in
current net assets projected to be generated and retained between

                                       30
<PAGE>
 
the date of the property Appraisal and June 30, 1996) represents a premium of
13.0%, 14.3%, 18.8%, 21.7% and 8.4% 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 Merger, respectively.

   GOING-CONCERN VALUE.  The SPI Board of Directors and SPI Special Committee
have estimated the going-concern value of SPI by analyzing projected cash flows
and distributions assuming that SPI 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 SPI
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 SPI 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 SPI 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 SPI paid out to SPI Shareholders in
liquidation distributions.  Dividends and sale proceeds per share of SPI Common
Stock were discounted in the projections at rates ranging from 12.0% to 13.0%.

   Scenario #3 of the going-concern analysis assumes SPI'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
SPI Shareholders out of SPI'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 SPI on a going-concern basis is not intended to
reflect the distributions payable to each of its shareholders if its assets were
to be sold at the current fair market value.

   LIQUIDATION VALUES.  Since one of the alternatives available to the SPI Board
of Directors is to proceed with a liquidation of SPI, and the corresponding
distribution of the net liquidation proceeds to SPI Shareholders, the SPI Board
of Directors and SPI Special Committee have estimated the liquidation value of
SPI assuming that SPI's real estate portfolio were sold at the fair market
value, based upon the Wilson real estate portfolio appraisal (excluding for
these purposes any pre-merger distributions that might be made to SPI
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 SPI), a termination fee of $3,905,800 is paid to PSI under the Advisory
Agreement, SPI incurs selling costs at the time of liquidation (state and local
transfer taxes, real estate commissions and legal and other closing costs) of
$1,239,000 and the remaining net liquidation proceeds are distributed among SPI
Shareholders in proportion to their share ownership.

   The liquidation analysis assumes that SPI'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 SPI
Shareholders out of SPI's cash flow from operations might be reduced because
SPI'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 SPI Board of Directors and SPI Special
Committee 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 SPI's real estate portfolio as of February 29, 1996.  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 relevant
information regarding the historical revenues and expenses of the properties.
The real estate portfolio appraisals assume that SPI'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 the
actual fair market value.  See "-- Real Estate Appraisal by Wilson."

   DISTRIBUTION COMPARISON.  The SPI Board of Directors and Special Committee
have considered the potential impact of the Merger upon distributions that would
be made to SPI Shareholders who exchange their SPI Common Stock for PSI Common
Stock.  Based on a market price of PSI Common Stock of $21 and the current
regular quarterly

                                       31
<PAGE>
 
distribution rate for PSI ($.22 per share) and SPI ($.08 per share), SPI
Shareholders would receive approximately $.003 (4%) less in regular quarterly
distributions per share of SPI Common Stock after the Merger from PSI than
before the Merger from SPI and approximately $.001 less per share in regular
quarterly distributions for each increase in the market price of PSI Common
Stock above $21 of $.25 (1.2%).  These estimates are based upon the actual
distributions made by SPI and PSI (not upon the amounts that might have been
distributed by them based upon their cash flow from operations).

   In evaluating this estimate, SPI 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 SPI does not show how the Merger might affect a SPI
Shareholder's distribution level over a number of years.

REAL ESTATE PORTFOLIO APPRAISAL BY WILSON

   Wilson was engaged by SPI and PSI to appraise the real estate portfolio of
SPI and has delivered a written report of its analysis, based upon the review,
analysis, scope and limitations described therein, as to the fair market value
of the portfolio of real estate assets of SPI as of February 29, 1996 (the
"Appraisal").  SPI and PSI selected Wilson to provide the Appraisal because of
its experience and reputation in connection with appraising mini-warehouses, its
familiarity with SPI's properties and its appraisal of the properties of five
other REITs in connection with their mergers with PSI.  The consideration to be
paid by PSI to SPI Shareholders in the Merger is based on the Appraisal.  The
Appraisal, which contains a description of the assumptions and qualifications
made, matters considered and limitations on the review and analysis, is set
forth as Appendix B and should be read in its entirety.  Certain of the material
assumptions, qualifications and limitations to the Appraisal 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 200
mini-warehouses in 1995.

   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 SPI and PSI, Wilson evaluated
SPI's portfolio of real estate which consists of six operating facilities owned
by SPI, one operating facility on leased land and one vacant parcel of land.  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 SPI's properties.

   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 SPI since today's
investors do not rely upon the cost approach in making investment decisions.

                                       32
<PAGE>
 
   While the Appraisal was prepared for SPI's entire portfolio, Wilson analyzed
the individual SPI 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 SPI'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.  Representatives of Wilson
performed site inspections on all eight of SPI's properties between January 29,
1996 and February 29, 1996.  Each 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 of the six operating facilities
owned by SPI 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, including PSI.  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 and assembled and reviewed available data on
bulk sale transactions.  Analysis of such information included consideration of
net operating income and sales prices per square foot, capitalization rates, and
various other property and transaction characteristics.  In addition, in the
case of the most recent bulk acquisition by PSI, Wilson performed site visits
and individual property reviews and reconciliations of the portfolio purchased
with the SPI portfolio.

   Wilson valued the vacant parcel of land based upon comparable sales in the
San Diego market.  Wilson valued the facility located on leased land by applying
a discounted cash flow analysis, using projections of cash flow developed using
the methodology discussed below, over the remaining term of the ground lease,
including all remaining extension options.  No residual value was utilized in
the valuation of the facility located on leased land.

   In valuing the other six facilities owned by PSI, Wilson applied a discounted
cash flow analysis, and projections of cash flow for each property (assuming no
indebtedness) were developed for a ten-year period ending February 2006.  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 within each
given market.  Expenses were deducted from effective 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 utilized in the projections were
3%.  Wilson then used terminal capitalization rates that ranged from 10.00% to
10.25% to capitalize each property's eleventh year net income into a residual
value at the end of the holding period, assuming normal cost

                                       33
<PAGE>
 
of disposing of the properties.  The ten yearly cash flows were then discounted
to present worth using discount rates ranging from 12.5% to 12.75% for SPI's
properties, again depending upon local market and property conditions.  The
indicated value based upon the income approach is $23,500,000 for SPI's
properties.

   In applying the sales comparison approach to the SPI properties, Wilson
relied most heavily on 27 properties which were sold during the past seven
months.  In addition, Wilson analyzed 85 sales which transferred during the past
12 months.  Using a regression analysis, a statistically significant correlation
was derived between each property's net income and its sales price per square
foot.  Wilson determined the value of the six operating facilities owned by SPI
based upon the properties' net income per square foot, using the regression
analysis.  Wilson then added to this result the value of the property on leased
land and vacant parcel of land to arrive at the value based on the sales
comparison approach.  The indicated value by the sales comparison approach
ranged between $20,930,000 to $23,520,000 for SPI's properties.

   Wilson reconciled the values indicated from the direct sales comparison and
income approaches to arrive at a final value conclusion.  Wilson gave primary
emphasis to the income approach, an emphasis deemed appropriate based on
acquisition criteria currently employed in the mini-warehouse market.  Based on
the valuation methodology described above, Wilson assigned a market value of
$23,500,000 to SPI's portfolio of real property assets.

   ASSUMPTIONS, LIMITATIONS AND QUALIFICATIONS OF THE APPRAISAL.  The Appraisal
reflects Wilson's valuation of SPI's real estate portfolio as of February 29,
1996 in the context of the information available on such date.  Events occurring
after February 29, 1996 and before the closing of the Merger could affect the
properties or assumptions used in preparing the Appraisal.  Wilson has no
obligation to update the Appraisal on the basis of subsequent events; however,
Wilson has informed SPI and PSI that, as of the date of this Proxy Statement and
Prospectus, Wilson is not aware of any event or change in conditions, since
February 29, 1996, that may have caused a material change in the value of SPI's
portfolio of real estate since that date.

   The Appraisal is subject to certain general and specific assumptions and
limiting conditions and is in conformity with the Departure Provisions of
Uniform Standards of Professional Appraisal Practice.  Among other limitations,
the Appraisal (i) did not consider the effect of easements, restrictions and
other similar items on the value of SPI's properties, (ii) assumed that the
properties comply with local building codes and zoning ordinances and (iii) did
not involve the physical inspections of competing properties.  See Appendix B
for a discussion of the specific assumptions, limitations and qualifications of
the Appraisal.

   COMPENSATION AND MATERIAL RELATIONSHIPS.  Wilson is being paid an aggregate
fee of $21,800 for preparation of the Appraisal, 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
Merger or the value reported.  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 five prior REITs
in connection with their mergers with PSI, and is expected to continue to
prepare appraisals for PSI.

FAIRNESS OPINION FROM STANGER

   Stanger was engaged by SPI through the SPI Special Committee to deliver a
written summary of its determination as to the fairness of the consideration to
be received in the Merger, from a financial point of view, to the public
shareholders of SPI.  The full text of the opinion, which contains descriptions
of the assumptions and qualifications made, matters considered and limitations
on the review and opinion, is set forth in Appendix C to this Proxy Statement
and Prospectus and should be read in its entirety.  Certain of the material
assumptions, qualifications and limitations to the fairness opinion are set
forth below.  The summary set forth below does not purport to be a complete
description of the analysis to be used by Stanger in rendering the fairness
opinion.  Arriving at a fairness opinion is a complex analytical process not
necessarily susceptible to partial analysis or amenable to summary description.

                                       34
<PAGE>
 
   Except for certain assumptions, described more fully below, which SPI advised
Stanger that it would be reasonable to make, it 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 opinion.  SPI
has agreed to indemnify Stanger against certain liabilities arising out of its
engagement to prepare and deliver the fairness opinion.

   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 opinion regarding the Merger, Stanger:  (i) reviewed this Proxy
Statement and Prospectus; (ii) reviewed SPI's and PSI's annual reports on Form
10-K for the three fiscal years ending December 31, 1993, 1994 and 1995; (iii)
reviewed the Appraisal and discussed with management of SPI and Wilson the
methodologies and procedures employed in preparing the Appraisal; (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; (v) reviewed
estimates prepared by SPI, and based in part on the Appraisal, of the current
net liquidation value per common share of SPI's assets and projections of cash
flow from operations, dividend distributions and going-concern values for SPI;
(vi) discussed with certain members of management of SPI and PSI conditions in
self-storage property markets, conditions in the market for sales/acquisitions
of properties similar to those owned by SPI, current and projected operations
and performance, and the financial condition and future prospects of SPI and
PSI; (vii) reviewed historical market prices, trading volume and dividends for
SPI 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 opinion.  The summary of the opinions and analysis of Stanger set
forth in this Proxy and Prospectus is qualified in its entirety by reference to
the full text of such opinion.

   Review of Appraisals.  In preparing its opinion, Stanger relied upon the
Appraisal of SPI's portfolio of properties which was prepared as of February 29,
1996 by Wilson, an independent appraiser.  Stanger reviewed the Appraisal
rendered by Wilson, reviewed a sample of supporting documentation for the
Appraisal and discussed with Wilson its experience and qualifications and the
appraisal methodologies utilized.

   Stanger observed that the Appraisal was certified by a Member of the
Appraisal Institute and was conducted utilizing the income approach to
valuation, applying the discounted cash flow method to establish a value for
each individual operating property and the sales comparison approach, except the
operating property located on leased land.  The vacant land parcel was valued
using only the sales comparison approach.  In addition, Stanger observed that in
the course of conducting the Appraisal, Wilson confirmed certain parameters
utilized based upon interviews conducted by Wilson of major buyers, owners and
managers of self-storage 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 properties which occurred
during the seven months preceding the date of the Appraisal.

   Stanger observed that the effective capitalization rate utilized in the
Appraisal was approximately 9.6% for the properties of SPI (excluding the vacant
land) and approximately 9.2% for the properties excluding the Hillside, New
Jersey property which is subject to a ground lease which expires in the year
2011, based on net operating income (before non-recurring expenses) generated
for the 12 months prior to the date of the Appraisal.  Based on net operating

                                       35
<PAGE>
 
income projected to be generated during the 12 months subsequent to the
Appraisal date, the effective capitalization rate utilized in the Appraisal was
approximately 10.4% for SPI's properties (excluding the vacant land) and
approximately 10.0% for the properties (excluding the vacant land and the
Hillside, New Jersey property).  Stanger further observed that among properties
acquired by PSI or affiliated entities from third-parties during the prior 24
months, stabilized capitalization rates for such purchases averaged
approximately 10.0%.  In addition, capitalization rates among transactions
involving self-storage properties tracked by Self Storage Data Services, Inc.,
an affiliate of Wilson, averaged approximately 10.0% on the prior seven-month
period.  Lower capitalization rates generally reflect higher sales prices for
income-producing properties.

   Review of Liquidation Analysis.  Stanger reviewed an analysis prepared by
management of SPI of the estimated value of SPI based upon liquidation of its
portfolio on a property-by-property basis utilizing estimates prepared by SPI
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 Appraisal, to an independent third-party buyer.  Costs of
such property sales by SPI to independent third-parties were estimated by SPI to
total approximately $1,239,000 and were comprised of estimates of $299,000 in
state and local transfer taxes, $705,000 in commissions and $235,000 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 SPI based on its
knowledge of real estate transactions.  Stanger observed that the estimated net
proceeds from such liquidation, assuming no Required REIT Distributions (prior
to the date of liquidation), a reduction of $3,905,800 representing the
termination fee payable to PSI under the Advisory Agreement, and the associated
dissolution of SPI and distribution of all remaining assets was $6.45 per share,
versus the consideration offered in the Merger of $7.31 cash per share of SPI
Common Stock, or the equivalent of $7.31 of PSI Common Stock per share of SPI
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 SPI Shareholders.

   Stanger also observed that, based on a legal opinion rendered by Heller,
Ehrman, White & McAuliffe dated March 18, 1996, PSI would have the right
pursuant to the Advisory Agreement to receive either a termination fee (upon
sixty days' notice) or a sales fee subordinated to certain return thresholds to
shareholders based on the net proceeds from the Merger.  Based upon an analysis
prepared by SPI, the estimated termination fee would total approximately
$3,900,000 and the estimated sales fee would total approximately $2,270,000.
Stanger noted that PSI has chosen to be paid the lesser of the two amounts to
which it would be entitled in the Merger.

   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 February 1996 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 nine
bulk purchases of property portfolios during the period reviewed excluding the
properties associated with the prior mergers of five REITs with PSI.  These
transactions involved affiliated entities and a total of 71 properties with an
aggregate value of approximately $215 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-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%); (7) a three-property portfolio by
a private limited partnership affiliated with PSMI in December 1994 (at a
capitalization rate of approximately 10.0%); (8) a ten-property portfolio by PSI
in February 1996 (at a stabilized capitalization rate of approximately 9.9%);
and (9) a 28-property portfolio in which PSI acquired the limited partnership
interests of an affiliated institutional partnership in February 1996 (at a
capitalization rate of approximately 9.76%).  Stanger observed that, in regard
to

                                       36
<PAGE>
 
the most recent portfolio acquisition by PSI, Wilson performed a reconciliation
of the price paid for the acquired properties with the appraised value of the
portfolio of SPI.  In the course of such reconciliation, Wilson performed site
inspections of each of the acquired properties, reviewed demographic data for
each local market, reviewed operating information and discussed the properties
with the management of PSI.  Among these transactions, capitalization rates
averaged approximately 10%.

   Review of Going Concern Analysis.  Stanger reviewed financial analyses and
projections prepared by the management of SPI concerning estimated cash flows
and dividend distributions from continued operation of SPI as an independent
stand-alone entity and estimated sales proceeds from the liquidation of the
shares of SPI or the portfolio of properties owned by SPI.  The analysis
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
SPI or the properties owned by SPI during projection periods of up to 10 years.
The analysis and projections assumed, among other things, that (i) net operating
income for SPI would grow at a compound annual rate of approximately 3.0% 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 Appraisal.

   The projections evaluated the going-concern value of SPI under three
scenarios:  Scenario #1 -- a five-year holding period, with shares of SPI 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 SPI 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 SPI
liquidated in private real estate markets at the terminal value projected by the
appraiser in the Appraisal and the net proceeds resulting from the liquidation
of the properties and other remaining assets of SPI paid out to shareholders in
liquidating distributions after payment of the termination fee to PSI under the
Advisory Agreement.  Dividends and sale proceeds per share of SPI Common Stock
were discounted in the projections at rates ranging from 12.0% to 13.0%.

   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 with market capitalization and
leverage levels reasonably comparable to those of SPI.  This group of publicly
traded REITs are all affiliated with PSI, and include 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 SPI Common
Stock on a going-concern basis resulting from the above analysis were as follows
for each scenario:  Scenario #1 -- $6.29 to $7.27; Scenario #2 -- $6.11 to
$6.88; and Scenario #3 -- $6.37 to $6.70, compared with the consideration
offered in the Merger of $7.31 per share of SPI Common Stock.

   The estimated values assigned to the alternative forms of consideration are
based on a variety of assumptions that have been made by SPI.  While SPI has
advised Stanger that it believes it has a reasonable basis for these
assumptions, these assumptions may not reflect the actual experience of SPI and
such differences could be material.  See "-- Comparison of Consideration to be
Received in the Merger to Other Alternatives."

   Review of Market Value.  Stanger reviewed historical market prices, trading
volume and dividend distributions for SPI Common Stock.  In the course of this
review, Stanger compared the historical market prices of SPI Common Stock with
amounts to be received at the time of the Merger.  Stanger observed that the
trading price for SPI Common Stock averaged $6.35, $6.28, $6.04 and $5.90, for
the respective 20-day, 60-day, 180-day, and 360-day periods preceding the
announcement of the proposed Merger, and that the closing price for SPI Common
Stock on the last trading day prior to the first announcement of the proposed
Merger was $6.63.  Stanger further observed that the consideration offered in
the Merger, reduced by $431,000, or approximately $.13 per share (which amount
represents increases in current net assets projected by management to be
generated and retained between the date of the Appraisal and June 30, 1996)
represents a premium of 13.0%, 14.3%, 18.8%, 21.7% and 8.4% over the 20-day, 60-
day,

                                       37
<PAGE>
 
180-day, 360-day average closing prices and the closing price on the last
trading day prior to the announcement of the proposed Merger, respectively.

   In addition, Stanger observed that the consideration per share of SPI Common
Stock offered in the Merger 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 SPI 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 SPI Shareholders on an equivalent per share basis.  Stanger noted
that based on a closing price of $21 for PSI Common Stock and the resulting
exchange ratio of SPI Common Stock for PSI Common Stock and based on operating
results for PSI, regular quarterly distributions per share would decrease by
approximately $.003 (4%) for SPI Shareholders receiving PSI Common Stock.
Stanger observed that, at the $21 closing price for PSI Common Stock and based
on operating results for PSI, FFO per share on a quarterly basis earned by SPI
Shareholders on an equivalent per share basis would increase approximately $.02
(15%).  Stanger also observed that the historical FFO per share annual growth
rate for PSI for the 1992-1995 period was 11.8% compared to a decrease in FFO
per share for SPI for the 1992-1995 period.

   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 Merger is fair to the public shareholders of
SPI, from a financial point of view.

   ASSUMPTIONS.  In evaluating the Merger, Stanger relied upon and assumed,
without independent verification, the accuracy and completeness of all financial
and other information contained in the Proxy Statement and Prospectus or that
was furnished or otherwise communicated to Stanger.  Stanger did not perform an
independent appraisal of the assets and liabilities of SPI or PSI and relied
upon and assumed the accuracy of the Appraisal.  Stanger also relied on the
assurances of SPI and PSI that any pro forma financial statements, projections,
budgets, or value estimates contained in the 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 Appraisal or the date of the other information provided and the date
of the opinion; and that SPI 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.  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 Merger, Stanger is being paid a fee
of $60,000.  In addition, Stanger will be reimbursed for certain out-of-pocket
expenses, including legal fees, up to a maximum of $9,000 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 Merger.  During the past
two years (1994 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 five 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 $235,000 in
connection with these services and products since 1994 (exclusive of amounts
received in connection with the Merger).

   LIMITATIONS AND QUALIFICATIONS.  Stanger was not requested to, and therefore
did not:  (i) select the method of determining the consideration offered in the
Merger; (ii) make any recommendation to SPI Shareholders whether to approve or
reject the Merger or whether to select the cash or Common Stock option in the
Merger; or (iii) express any opinion as to the business decision to effect the
Merger, alternatives to the Merger or tax factors resulting from

                                       38
<PAGE>
 
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 five 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 Merger to
SPI Shareholders, and SPI has neither requested nor received any views,
preliminary or otherwise, from any party other than Stanger regarding the
fairness of the Merger to SPI Shareholders.

THE MERGER AGREEMENT

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

   CONDITIONS TO CONSUMMATION OF THE MERGER.  Consummation of the Merger is
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 SPI Common Stock and to consummate the Merger; (ii) the
Merger Agreement and the Merger shall have been approved and adopted by the
requisite vote of the shareholders of SPI, including a majority of the shares of
SPI Common Stock voting at the meeting of SPI Shareholders which are not owned
by PSI; (iii) receipt by SPI of a legal opinion of Hogan & Hartson L.L.P. that
the Merger will qualify as a reorganization under Section 368(a) of the Code
(which opinion has been received and is described under "Certain Federal Income
Tax Matters"); (iv) the PSI Shares issued to SPI Shareholders shall be listed on
the NYSE; (v) the Board of Directors of SPI shall have received a fairness
opinion from Stanger (which opinion has been received); (vi) the Board of
Directors of PSI shall have approved the Merger (which approval has been
received); (vii) 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 SPI Shareholders is not less than
$18; and (viii) demands for payment by holders of Dissenting Shares are filed
with respect to less than 5% of the outstanding shares of SPI Common Stock.  The
obligation of PSI to effect the Merger is 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 SPI.  Any of these conditions (other than the
condition of approval by the SPI 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 SPI 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 Merger or the Merger Agreement.  The Merger
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 Merger shall not have
occurred on or before March 31, 1997.

   CONSUMMATION.  It is contemplated that the Merger will be consummated by
filing the Agreement of Merger (attached as Exhibit A to the Merger Agreement)
with the California Secretary of State as soon as practicable after its approval
by SPI Shareholders and the satisfaction or waiver of various conditions
contained in the Merger Agreement.  It is currently contemplated that the Merger
will be consummated during 1996.

   EXCHANGE OF CERTIFICATES.  After the Merger, holders of certificates that
evidenced outstanding shares of SPI Common Stock that were converted into shares
of PSI Common Stock, upon surrender of the certificates to The First National
Bank of Boston ("Bank of Boston"), 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
Merger, Bank of Boston will send a notice and a transmittal form to each
holder of record whose common stock shall have been converted into

                                       39
<PAGE>
 
shares of PSI Common Stock, advising of the effectiveness of the Merger and the
procedure for surrendering to Bank of Boston certificates evidencing SPI
Common Stock in exchange for certificates evidencing PSI Common Stock.  HOLDERS
OF SPI COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK IN THE MERGER SHOULD
NOT SUBMIT THEIR STOCK CERTIFICATES FOR EXCHANGE UNTIL THEY HAVE RECEIVED THE
LETTER OF TRANSMITTAL AND INSTRUCTIONS FROM BANK OF BOSTON WHICH WILL BE
MAILED AFTER CONSUMMATION OF THE MERGER.

   Until surrendered, each outstanding certificate which represents shares of
SPI 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 SPI 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 Merger.  After the
Merger, there will be no further registration of transfers of SPI Common Stock
on the records of SPI 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 Merger.  In lieu of any fractional share interests, each holder of SPI
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 Merger.  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 Merger, by (ii) the fractional interest.

   RESTRICTIONS ON OTHER ACQUISITIONS.  SPI has 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 SPI 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 SPI Shareholders under
applicable law as advised by counsel.  SPI has 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 Merger, SPI is precluded from declaring or paying
any dividend on its common stock or making any other distribution to its
shareholders other than (i) regular dividends at a quarterly rate not in excess
of $.08 per share, (ii) dividends to shareholders of record of SPI immediately
prior to the effectiveness of the Merger equal to the amount by which SPI's
estimated net asset value at such date exceeds the estimated net asset value at
June 30, 1996 and (iii) Required REIT Distributions.  Pending the Merger, 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 SPI Shareholders in
Connection with the Merger."

CASH ELECTION PROCEDURE

   Each holder of record of SPI Common Stock may make a Cash Election and have
its shares of SPI Common Stock converted into the right to receive cash in the
Merger.  If the aggregate number of shares of SPI Common Stock

                                       40
<PAGE>
 
as to which Cash Elections are made, together with shares of SPI Common Stock
owned by Dissenting Shareholders (see "Dissenting Shareholders' Rights of
Appraisal"), is 20% or less than the number of shares of SPI Common Stock
outstanding as of the record date for the meeting of SPI Shareholders, all such
shares as to which Cash Elections are made shall be converted into the right to
receive cash in the Merger.  If the aggregate number of such shares (together
with any Dissenting Shares) is more than 20%, such shares shall be converted
into the right to receive cash in the 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 SPI Shareholders receiving
both cash and PSI Common Stock in connection with the Merger, see "Certain
Federal Income Tax Matters -- The Merger -- SPI 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 SPI 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 SPI Common
Stock held by such Representative for a particular beneficial owner. Any Cash
Election Form may be revoked by written notice received by Bank of Boston prior
to 5:00 p.m., New York City 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 Bank of Boston is notified in writing that the Merger has been
abandoned.

   IF A SPI SHAREHOLDER DOES NOT PROPERLY COMPLETE AND RETURN THE CASH ELECTION
FORM, HE OR SHE WILL RECEIVE PSI COMMON STOCK IN THE MERGER.  A SPI SHAREHOLDER
MAY NOT MAKE A CASH ELECTION AS TO LESS THAN ALL OF THE SHARES OF SPI COMMON
STOCK OWNED BY SUCH SHAREHOLDER.  A Cash Election Form is being sent to SPI
Shareholders of record on May 13, 1996.  To be effective, a Cash Election Form
must be properly completed and signed and must be received by Bank of Boston
accompanied by all stock certificates representing shares of SPI 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 SPI Common Stock to which the Cash
Election Form relates will be promptly returned by Bank of Boston.  Bank of
Boston 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 SPI 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 SPI 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 BANK OF BOSTON PRIOR TO 5:00 P.M., NEW YORK CITY TIME, ON
_______________, 1996 WILL RECEIVE PSI COMMON STOCK IN THE MERGER.  IF PSI OR
BANK OF BOSTON 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 SPI COMMON STOCK MAKING SUCH PURPORTED CASH ELECTION WILL,
FOR PURPOSES HEREOF, RECEIVE PSI COMMON STOCK IN THE MERGER.  NEITHER PSI, SPI
NOR BANK OF BOSTON 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 Merger."

CONSEQUENCES TO SPI IF THE MERGER IS NOT COMPLETED

   If the Merger is not completed, SPI will remain as a separate legal entity
and will continue to operate its properties.

                                       41
<PAGE>
 
COSTS OF THE MERGER

   It is estimated that the total consideration (cash and Common Stock) to be
paid by PSI to purchase all of the SPI Common Stock in the Merger and to pay
related costs and expenses would be $25,240,000 (less the amount of any Required
REIT Distributions) and that the total amount of funds that would be required by
PSI to purchase the SPI Common Stock from shareholders making Cash Elections and
to pay the cost and expenses of the Merger would be $5,660,000 (assuming maximum
Cash Elections and no Required REIT Distributions).  These amounts will be paid
from PSI's working capital or 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 1.50%.  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 Merger is not completed, all costs incurred in connection with the
Merger will be paid by the party incurring such costs, except that PSI and SPI
each will pay one-half of the cost of any expenses incurred in connection with
the printing of this Proxy Statement and Prospectus and related registration
statement, the Appraisal, environmental and structural audits and preparation
for real estate closings and filing fees.  SPI's share of such costs would be
paid from its working capital.  If the Merger is completed, all costs incurred
in connection with the Merger will be paid by PSI.

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

<TABLE>
<S>                                                              <C>  
Preclosing Transaction Costs
  Printing and Mailing                                           $ 120,000
  Proxy Solicitation                                                25,000
  Legal                                                             40,000
  Real Estate Valuations and Fairness Opinions                      88,000
  Registration, Listing and Filing Fees                             40,000
  Accounting                                                        20,000
  Other                                                             17,000
                                                                 ---------
  Subtotal                                                         350,000
 
Closing Transaction Costs
  Transfer Fees                                                    300,000
  Legal                                                             20,000
  Title endorsements and escrow                                     85,000
  Other                                                             10,000
                                                                 ---------
  Subtotal                                                         415,000*
                                                                 ---------
TOTAL                                                            $ 765,000
                                                                 =========
</TABLE> 
- ---------------
*  Would not be incurred if Merger is not approved.

ACCOUNTING TREATMENT

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

REGULATORY REQUIREMENTS

  The Merger is subject to compliance with federal and state securities law
requirements.

                                       42
<PAGE>
 
COMPARISON OF SPI COMMON STOCK WITH PSI COMMON STOCK

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

                 SPI                                      PSI

                       INVESTMENT OBJECTIVES AND POLICIES

The principal investment objectives      The investment objectives of PSI are
are to provide (i) quarterly cash        to maximize FFO allocable of holders
distributions from its operations        of PSI Common Stock and to increase
and (ii) long-term capital gains         shareholder value through internal
through appreciation in the value of     growth and acquisitions.  FFO is a
properties.                              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 Merger) 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.

       SPI Shareholders who receive PSI Common Stock in the Merger will be
  changing their investment from holding an interest in an entity engaged solely
  in the ownership of mini-warehouses to holding an investment in a fully-
  integrated real estate company, specializing in all aspects of the mini-
  warehouse industry.  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."

                                       43
<PAGE>
 
                 SPI                                      PSI

       PSI has no plans with respect to a sale or financing of any of SPI's
  properties.  PSI intends to continue to acquire properties from other parties.

                               BORROWING POLICIES

  Has not incurred borrowings in         Subject to certain limitations in
  acquisition of properties, although    PSI's Bylaws, PSI has broad powers to
  not precluded by organizational        borrow in furtherance of its
  documents.                             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 December 31,
                                         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 8%.

       PSI, unlike SPI, has incurred debt in the ordinary course of business and
  reinvests proceeds from borrowings.  The incurrence of debt increases the risk
  of loss of investment.

                      PROPERTIES (As of December 31, 1995)

  Six wholly-owned properties and one    PSI owns equity interests (directly,
  joint venture property interest in     as well as through general and
  six states.  For the year ended        limited partnership interests and
  December 31, 1995, the weighted        capital stock interests) in 1,050
  average occupancy level and realized   properties in 37 states, including
  monthly rent per square foot of        273 wholly owned properties.  See
  SPI's mini-warehouses were 91% and     "Description of PSI Properties."
  $.88, respectively.  See
  "Description of SPI's Properties."

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

                   LIQUIDITY, MARKETABILITY AND DISTRIBUTIONS

  SPI Common Stock is traded on the      PSI Common Stock is traded on the
  AMEX.  During the 12 months ended      NYSE.  During the 12 months ended
  December 31, 1995, the average daily   December 31, 1995, the average daily
  trading volume of SPI Common Stock     trading volume of PSI Common Stock
  was 3,051.  SPI has not issued any     was 59,432 shares (52,913 shares if
  securities that have priority over     May 1995, during which PSI was
  its common stock.                      engaged in a public offering of
                                         common stock, is 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.

                                       44
<PAGE>
 
                 SPI                                      PSI

       Distributions may be declared by the boards of directors of SPI 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 SPI Shareholder who receives PSI Common Stock in the Merger should have
  an investment for which the market is broader and more active than the market
  for SPI 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" and "Distributions and Price Range of SPI Common
  Stock" for information on trading prices of the SPI and PSI Common Stock.

                                    TAXATION

       SPI and PSI were 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 SPI and PSI Shareholders
  generally constitute portfolio income, which cannot offset "passive" income
  and loss from other investments.

                                 VOTING RIGHTS

       Both SPI 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.

                             MANAGEMENT AND DUTIES

  SPI is advised by, and its properties  PSI is managed by its board of
  are managed by, PSI, under the         directors and executive officers.  A
  general supervision of its             majority of the directors of PSI are
  five-member board of directors,        independent directors.
  consisting of two executive officers
  of PSI, one other director of PSI
  and two independent directors.

       Unlike SPI, PSI is self-advised and self-managed.

       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 SPI 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

                                       45
<PAGE>
 
  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 SPI 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.  SPI
  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, SPI 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

  For SPI to be taxed as a REIT, its     For PSI to be taxed as a REIT, PSI
  common stock must be widely held.      Common Stock must be widely held.  To
  To aid SPI in meeting this             aid PSI in meeting this requirement,
  requirement, its board of directors    PSI's articles of incorporation
  is given the power to restrict the     contain significant restrictions on
  transfer of shares of their common     the ownership of PSI Common Stock.
  stock if the transfer could produce    PSI is authorized to issue
  a violation of this requirement.       200,000,000 shares of PSI Common
  Subject to the rules of the AMEX and   Stock, of which approximately
  applicable provisions of California    73,000,000 shares are currently
  law, SPI can issue authorized common   outstanding, and 50,000,000 shares of
  and preferred stock without            preferred stock, of which
  shareholder approval.                  approximately 13,500,000 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 the ownership level of PSI Common Stock by the Hughes Family, PSI
  should be in a better position to deter attempts to obtain control in
  transactions not approved by its board of directors than SPI, and PSI
  Shareholders could be less likely to benefit from a takeover not approved by
  its board of directors than would SPI Shareholders in a similar circumstance.

                         LIMITED LIABILITY OF INVESTORS

       Under California law, shareholders are not generally liable for corporate
  debts or obligations.  The SPI 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.

                                       46
<PAGE>
 
                             APPROVAL OF THE MERGER

     This Proxy Statement and Prospectus and the enclosed proxy are first being
mailed on or about May 21, 1996 to SPI Shareholders in connection with the
solicitation by the SPI Board of Directors for use at the special meeting of SPI
Shareholders (and at any adjournment) to consider and vote upon the Merger.

     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 SPI
Shareholders will be voted in favor of the Merger.  A proxy is revocable by
delivering a subsequently signed and dated proxy or other written notice to the
Secretary of SPI 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.

     Holders of record at the close of business on May 13, 1996 of the SPI
Common Stock will be entitled to receive notice of and to vote at the meeting.
On such date, there were 3,348,167 shares of SPI Common Stock outstanding, and
each share is entitled to one vote on the Merger.  Presence, in person or by
proxy, of a majority of the shares of SPI Common Stock constitutes a quorum.  As
of the record date, PSI beneficially owned ________ shares (approximately ____%)
of SPI Common Stock and the directors and executive officers of SPI beneficially
owned an additional ______ shares (approximately ____%) of SPI Common Stock.
Such parties intend to vote their shares of SPI Common Stock for the Merger.

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

                                       47
<PAGE>
 
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     SPI.  The following table sets forth information with respect to persons
known to SPI to be the beneficial owner of more than 5% of the outstanding
shares of SPI Common Stock:

<TABLE>
<CAPTION>
                                                  Shares of SPI 
                                                  Common Stock
                                               Beneficially Owned
                                               ------------------
                                                Number
     Name and Address                         of Shares   Percent
     ----------------                         ---------   -------
     <S>                                          <C>         <C>
     PSI
     701 Western Avenue, Suite 200
     Glendale, California 91201-2397(1)        288,900       8.6%
     Loeb Partners Corporation
     Loeb Arbitrage Fund
     61 Broadway
     New York, New York 10006(2)               176,100       5.3%

</TABLE>

- --------------
     (1) This information is as of May 2, 1996.  PSI has sole voting and
         dispositive power with respect to these shares.

     (2) This information is based on a Schedule 13D dated April 29, 1996 filed
         by Loeb Partners Corporation and Loeb Arbitrage Fund. As of April 29,
         1996 Loeb Partners Corporation beneficially owned 34,825 shares of SPI
         Common Stock and Loeb Arbitrage Fund beneficially owned 141,275 shares
         of SPI Common Stock. Loeb Partners Corporation has sole voting and
         dispositive power with respect to 23,875 shares and shared voting and
         dispositive power with respect to 10,950 shares, and Loeb Arbitrage
         Fund has sole voting and sole dispositive power with respect to 141,275
         shares.

     The following table sets forth information as of May 2, 1996 concerning the
beneficial ownership of SPI Common Stock of each director of SPI (including
Hughes, the chief executive officer) and of all directors and executive officers
of SPI as a group:

<TABLE>
<CAPTION>
                                                                          Shares of SPI 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           3,000(2)            (3)
Harvey Lenkin                             President and Director              700(4)            (3)
Dann V. Angeloff                          Director                            100(5)            (3)
Vern O. Curtis                            Director                          1,000               (3)
Jack D. Steele                            Director                          1,000               (3)
All Directors and Executive Officers
 as a Group (10 persons)                                                   51,600(2)(4)(5)(6)  1.5%
</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 held of record by PS Insurance Company, Ltd. as to which Mr. Hughes
    and Tamara L. Hughes (an adult daughter of Mr. Hughes) share voting and
    dispositive power.
(3) Less than 0.1%.
(4) Includes 500 shares and 100 shares, respectively, held by custodians of IRAs
    for Mr. Lenkin and Mrs. Lenkin as to which each has investment power.

                                       48
<PAGE>
 
(5) Shares held by a custodian of an IRA for Mr. Angeloff as to which he has
    investment power.
(6) Includes shares held of record or beneficially by members of the immediate
    family of officers of SPI and shares held by custodians of individual
    retirement accounts for the benefit of officers of SPI (or members of their
    immediate families).

     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,
    PS Orangeco, Inc. ("PSOI")                        37,280,234      51.0%
    600 North Brand Boulevard, Suite 300
    Glendale, California 91203-1241
    PS Insurance Company, Ltd. ("PSIC")
    41 Cedar Avenue
    Hamilton, Bermuda(1)

    FMR Corp.                                          5,468,355       7.5%
    82 Devonshire Street
    Boston, Massachusetts 02109(2)
</TABLE> 
_______________
(1) This information is as of April 30, 1996.  The reporting persons listed
    above (the "PSI Reporting Persons") have filed a joint Schedule 13D, amended
    as of March 26, 1996.  The number of shares of PSI Common Stock beneficially
    owned by the PSI Reporting Persons at April 30, 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 common stock of PSOI (representing approximately 5% of the equity) is
    owned one-third each by B. Wayne Hughes, Tamara L. Hughes (an adult daughter
    of B. Wayne Hughes) and B. Wayne Hughes, Jr. (an adult son of B. Wayne
    Hughes), and the non-voting preferred stock of PSOI (representing
    approximately 95% of the equity) is owned by PSI.  The stock of PSIC is
    owned approximately 45% by B. Wayne Hughes, 47% by Tamara L. Hughes and 8%
    by B. Wayne Hughes, Jr.  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, Tamara L. Hughes and B. Wayne Hughes, Jr. share voting and
    dispositive power with respect to the 30,777 shares owned by PSOI, and 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 17,552,044 shares
    (exclusive of the shares owned by PSOI and PSIC) or approximately 24.0% of
    the shares of PSI Common Stock outstanding (or deemed to be outstanding) as
    of April 30, 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 December 31, 1995 and is based on a Schedule 13G
    filed by FMR Corp. (except that the percent shown in the table is based on
    the shares of PSI Common Stock outstanding at April 30, 1996).  As of
    December 31, 1995, FMR Corp. beneficially owned 5,468,355 shares of PSI
    Common Stock.  This number includes 5,136,100 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 332,255 shares and sole dispositive power with
    respect to 5,468,355 shares.

                                       49
<PAGE>
 
     The following table sets forth information as of April 30, 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        19,728,190(1)(4)                   27.0%
 
Harvey Lenkin           President and Director             583,690(1)(5)                    0.8%
                                                            10,000(2)                         *
                                                             4,040(3)                         *
                                                        ----------                         ----
                                                           597,730                          0.8%
 
Robert J. Abernethy     Director                            65,591(1)                         *
                                                            20,833(2)                         *
                                                        ----------                         ----
                                                            86,424                          0.1%
 
Dann V. Angeloff        Director                            85,810(1)(6)                    0.1%
                                                               833(2)                         *
                                                        ----------                         ----
                                                            86,643                          0.1%
 
William C. Baker        Director                            10,000(1)                         *
                                                            20,833(2)                         *
                                                        ----------                         ----
                                                            30,833                            *
 
Uri P. Harkham          Director                           491,116(1)(7)                    0.7%
                                                               833(2)                         *
                                                        ----------                         ----
                                                           491,949                          0.7%

All Directors and 
 Executive Officers
 as a Group (14 
 persons)                                               21,304,121(1)(4)(5)
                                                                  (6)(7)(8)                29.2%
                                                           236,494(2)                       0.3%
                                                            16,664(3)                         *
                                                        ----------                         ----
                                                        21,557,279                         29.4%
</TABLE> 
_______________

*   Less than 0.1%

(1) Shares of PSI Common Stock beneficially owned as of April 30, 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 April 30, 1996, and portion of which will
    be vested within 60 days of April 30, 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.

(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 April 30, 1996 by the named individuals or the group.

                                       50
<PAGE>
 
(4)  Includes 19,360,295 shares held of record by the B.W. Hughes Living Trust
     as to which Mr. Hughes has voting and investment power, 1,414 and 1,409
     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 30,777 shares held of record by PSOI as to which Mr. Hughes,
     Tamara L. Hughes and B. Wayne Hughes, Jr. share voting and dispositive
     power and 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, 2,185
     shares held by Mr. Angeloff as trustee of Angeloff's Children's Trust and
     76,625 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 1,725, 1,800, 1,700,
     1,800 and 1,700 shares, respectively, held by Mr. Harkham as custodian for
     five of his children.

(8)  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.

                                       51
<PAGE>
 
     The following tables set forth information as of April 30, 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                                     --               --             --                     --
All Directors and Executive Officers
  as a Group (14 persons)                       9,900(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                                  --                   --        29,300(1)(4)       2.4%
Robert J. Abernethy                            --                   --            --              --
Dann V. Angeloff                               --                   --            --              --
William C. Baker                               --                   --            --              --
Uri P. Harkham                                 --                   --            --              --
All Directors and Executive Officers
  as a Group (14 persons)                   4,000(1)(3)            0.2%       29,800(1)(3)(4)    2.5%
- ---------------
</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 April 30, 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.

(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.

                                       52
<PAGE>
 
(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 April 30, 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, Convertible Preferred Stock, Series CC or Class B
Common Stock (the Class B Common Stock is owned by Tamara L. Hughes and B. Wayne
Hughes, Jr.).

SOLICITATION OF PROXIES

     SPI will pay its cost of soliciting proxies.  In addition to solicitation
by mail, certain directors, officers and regular employees of SPI and its
affiliates may solicit the return of proxies by telephone, telegraph, personal
interview or otherwise.  SPI 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 SPI in
solicitation of proxies at an estimated cost of $25,000.

                                       53
<PAGE>
 
                        DESCRIPTION OF SPI'S PROPERTIES

     SPI has an interest in seven mini-warehouses.  The following table contains
information as of December 31, 1995 about SPI's properties.  Pursuant to the
Merger, these properties would be acquired by PSI.

<TABLE>
<CAPTION>
 
                                                                          Date
                         Type of       Size     No. of   Net Rentable   Opened/
Location                 Interest     (Acres)   Spaces   Square Feet    Acquired
- --------------------   ------------   -------   ------   ------------   --------
<S>                    <C>            <C>       <C>      <C>            <C>
 
Las Vegas, NV          Fee              2.60       517         65,310      10/89
Bedford Park, IL       Fee              3.02       468         50,325      11/89
Los Angeles, CA        Fee              1.04       547         43,700       1/90
Silver Spring, MD      Fee              0.73       742         57,450      11/90
Brooklyn, NY           Fee              1.73       769         50,200      11/90
Newark, CA             Fee              4.12       616         58,042       6/94
Hillside, NJ           Leasehold(1)     4.37       840         74,300       9/90
- ---------------
</TABLE>

(1) SPI owns an undivided 62.5% interest in the Hillside property.  The
    remaining 37.5% interest is owned by Partners Preferred Yield III, Inc., a
    REIT that is an affiliate of PSI.  The facility is on leased land which is
    leased from an unrelated third party.  The term of the lease is through
    February 2011 which includes two renewal periods of five years each.

     Substantially all of SPI's facilities were acquired prior to the time that
it was customary to conduct environmental investigations in connection with
property acquisitions.  During the fourth quarter of 1995, SPI completed
environmental assessments of its properties to evaluate the environmental
condition of, and potential environmental liabilities of, such properties.
These assessments were performed by an independent environmental consulting
firm.  Based on the assessments, SPI has expensed, as of December 31, 1995, an
estimated $99,000 for known environmental remediation requirements.

     As of the date of this Proxy Statement and Prospectus, each of the
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
properties will continue to be used for its current purpose.  SPI believes each
property is adequately covered by insurance.

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

<TABLE>
<CAPTION>
 
                                                            Years ended December 31,
                                                         -------------------------------
                                                          1993(1)     1994(1)     1995
                                                         ---------   ---------   -------
                 <S>                                     <C>         <C>         <C>
 
                 Weighted average occupancy level            85%         90%         91%
                 Realized monthly rent per occupied
                   square foot (2)                        $ .78       $ .87       $ .88
- ---------------
</TABLE>

(1) Includes the operations of the Brooklyn, New York property before SPI
    acquired it in December 1994, the operations of the Las Vegas, Nevada,
    Bedford Park, Illinois, Los Angeles, California and Silver Spring, Maryland
    properties before SPI acquired them in July 1993 and the Newark, California
    property from June 1994, the date of acquisition.

                                       54
<PAGE>
 
(2) Realized monthly rent per occupied square foot represents the actual revenue
    earned per occupied square foot.  SPI 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 each of SPI's
properties.  Each of them has a book value of at least 10% of SPI's total assets
or has accounted for at least 10% of its aggregate gross revenues.

     The Las Vegas, Nevada property is located on the west side of Eastern
Avenue approximately one mile east of the University of Nevada.  The property
operates in a very competitive market.  At December 31, 1995, the property's
occupancy level was 87%  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 for the last three years (includes operations prior to
SPI's acquisition of the property in June 1993 through conversion of SPI's First
Mortgage Convertible Loan ("FMCL") secured by the property to fee ownership):

<TABLE>
<CAPTION>
 
                       Occupancy         Annual Scheduled
                         Rate          Rent Per Square Foot
                      ----------       --------------------
        <S>           <C>              <C>
 
        1995             91%                  $7.82
        1994             95                    7.30
        1993             91                    6.65
        1992             83                    5.64
        1991             68                    5.52
</TABLE>

     The Bedford Park, Illinois property is located at the corner of Sayre
Avenue and 79th Street which is approximately nine miles southwest of downtown
Chicago.  The area around the property has had a significant supply of mini-
warehouse space become available at the time this property opened in 1989.  The
majority of the supply of mini-warehouse space in this market is being absorbed.
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 for the last three years (includes operations prior to SPI's
acquisition of the property in June 1993 through conversion of SPI's FMCL
secured by the property to fee ownership):

<TABLE>
<CAPTION>
 
                       Occupancy       Annual Scheduled
                         Rate         Rent Per Square Foot
                      ----------      --------------------
        <S>           <C>             <C>
 
        1995             97%                  $7.94
        1994             96                    7.09
        1993             94                    6.54
        1992             83                    6.46
        1991             59                    6.40
</TABLE>

     The Los Angeles, California property is located on the northeast corner of
the intersection of Manchester Avenue and the Harbor (110) Freeway,
approximately seven miles southwest of downtown Los Angeles.  Competition in
this south central area of Los Angeles is light.  The property's rental rates
are typically lower than its competitors.  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 for the last three years (includes
operations prior to SPI's acquisition of the property in June 1993 through
conversion of SPI's FMCL secured by the property to fee ownership):

<TABLE>
<CAPTION>
 
                      Occupancy         Annual Scheduled
                         Rate         Rent Per Square Foot
                      ----------      --------------------
        <S>           <C>             <C>
 
        1995             89%                 $10.46
        1994             85                   10.54
        1993             86                   11.61
        1992             77                   12.28
        1991             77                   13.18
</TABLE>

                                       55
<PAGE>
 
     The Silver Spring, Maryland property is located on the north side of
Burlington Avenue, west of Fenton Street, approximately one-fourth of a mile
northeast of Washington, D.C.  The population around the property is dense and
the property has only one significant competitor located one block away.  Rental
rates at this facility have remained competitive with the rates offered by its
nearby competitor.  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 for the last three years (includes operations prior to
SPI's acquisition of the property in June 1993 through conversion of SPI's FMCL
secured by the property to fee ownership):

<TABLE>
<CAPTION>
 
                       Occupancy        Annual Scheduled
                         Rate         Rent Per Square Foot
                      ----------      --------------------
        <S>           <C>             <C>
 
        1995             91%                 $12.96
        1994             88                   12.03
        1993             73                   11.79
        1992             51                   11.78
        1991             25                   11.77
</TABLE>

     The Brooklyn, New York property is located on the intersection of Emerson
Avenue and Park Avenue approximately eight and one-half miles southeast of
downtown Manhattan.  The property consist of three connected multi-story
buildings.  The property competes with two other competitors within a one mile
radius of the property.  Rental rates are competitive with the rates offered by
its competitors.  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 for the last three years (includes operations prior to
SPI's acquisition of the property in December 1994 through conversion of SPI's
FMCL secured by the property to fee ownership):

<TABLE>
<CAPTION>
 
                       Occupancy       Annual Scheduled
                         Rate         Rent Per Square Foot
                      ----------      --------------------
        <S>           <C>             <C>
 
        1995             89%                 $12.05
        1994             87                   10.61
        1993             69                    9.96
        1992             41                    9.58
        1991             13                   10.89
</TABLE>

     The Newark, California property is located at the northeast corner of the
intersection of Jarvis Avenue and Fircrest Street approximately 35 miles
southeast of San Francisco.  The property consist of five single story
buildings.  There are five competitors located within a three mile radius of the
property.  The rental rates charged at this property are competitive with those
charged at the competitor's properties.  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 for the last two years (the property was
acquired in June 1994):

<TABLE>
<CAPTION>
 
                       Occupancy         Annual Scheduled
                         Rate          Rent Per Square Foot
                      ----------       --------------------
        <S>           <C>              <C>
 
        1995             83%                  $8.95
        1994             78                    8.62
        1993             90                    8.28
        1992             90                    8.24
        1991             89                    8.18
</TABLE>

     The Hillside, New Jersey property is located at 669 Glenwood Avenue.  The
nearest intersection is North Union Avenue.  The property is visible from the
Garden State Parkway.  The property is in a predominately dense residential and
light industrial community with no competitors within the immediate market.  The
property consist of 840 units in single story buildings.  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 for the last three
years:

                                       56
<PAGE>
 
<TABLE>
<CAPTION> 
                                Occupancy       Annual Scheduled
                                  Rate        Rent Per Square Foot
                                ---------     ---------------------
        <S>                     <C>           <C>
 
        1995                        98%             $13.60
        1994                        96               12.91
        1993                        96               12.62
        1992                        91               12.43
        1991                        89               13.09
</TABLE>

                                       57
<PAGE>
 
                        DESCRIPTION OF PSI'S PROPERTIES

     At December 31, 1995, PSI had equity interests (through direct ownership,
as well as general and limited partnership interests and stock ownership
interests) in 1,050 facilities (273 of which were wholly-owned) located in 37
states.  These facilities consist of 1,016 mini-warehouses and 34 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.

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

<TABLE>
<CAPTION>

                                             At December 31, 1995
                                 --------------------------------------------
                                                              Net Rentable 
                                                              Square Feet
                                  Number of Facilities       (in thousands)
                                 -----------------------   ------------------
                                    Mini(2)        BP        Mini       BP
                                 -------------   -------   --------   -------
<S>                              <C>             <C>       <C>        <C>
  California:
   Southern                             146           16     9,419     1,434
   Northern                             129            4     7,211       291
  Texas                                 109            5     7,092       670
  Florida                                81           --     4,491        --
  Illinois                               62           --     3,899        --
  Colorado                               36           --     2,275        --
  Washington                             36            1     2,228        28
  Georgia                                33           --     1,727        --
  New Jersey                             32           --     1,846        --
  Maryland                               31           --     1,772        --
  Virginia                               28            3     1,921       213
  New York                               27           --     1,584        --
  Ohio                                   27           --     1,651        --
  Oregon                                 25            1     1,232        40
  Nevada                                 22           --     1,410        --
  Pennsylvania                           18           --     1,227        --
  Other states (22 states)              174            4     9,734       406
                                     ------           --   -------    ------
    Totals                            1,016           34    60,719     3,082
                                     ======           ==   =======    ======
</TABLE> 

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

<TABLE> 
<CAPTION> 
                                             Years ended December 31,
                                             ------------------------
                                             1993      1994      1995
                                             ----      ----      ---- 
  <S>                                        <C>       <C>       <C> 
  Weighted average occupancy level           87.0%     89.2%     90.1%
  Realized monthly rent per occupied
    square foot (1)(2)                       $.64      $.68      $.70
</TABLE> 
- ---------------

(1) Mini-warehouses owned throughout the periods.

(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.

                                       58
<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>
 
           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
             Fourth quarter      19 3/4   17 3/8          .22
 
           1996:
             First quarter       21 7/8   18 7/8          .22
             Second quarter
</TABLE>

_______________

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

     As of April 30, 1996, there were approximately 14,436 record holders of PSI
Common Stock.  On March 1, 1996, the last full trading day prior to the first
public announcement of the proposed Merger, the closing price of the Common
Stock of PSI was $21 1/2.  On _______________, 1996, the last full trading day
prior to the date of this 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.

                                       59
<PAGE>
 
               DISTRIBUTIONS AND PRICE RANGE OF SPI COMMON STOCK

     The SPI Common Stock has been listed on the AMEX since October 1990.  The
following table sets forth the distributions paid per share on SPI 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>        
           1994:
             First quarter         5 1/2      4 3/4    $.07
             Second quarter        4 15/16    4 3/8     .07
             Third quarter         5 1/8      4 1/2     .07
             Fourth quarter        5 3/8      4 11/16   .40(2)
 
           1995:
             First quarter         5 3/4      4 3/4     .08
             Second quarter        6 1/8      5 5/16    .08
             Third quarter         6 1/8      5 1/2     .08
             Fourth quarter        6 3/8      6         .28(2)
 
           1996:
             First quarter         7          6 3/16    .08
             Second quarter
</TABLE>

_______________

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

(2) Distributions for the fourth quarter of 1994 and 1995 include special
    distributions of $.32 and $.20, respectively.

     As of April 30, 1996, there were approximately 963 record holders of SPI's
Common Stock.  On March 1, 1996, the last full trading day prior to the first
public announcement of the proposed Merger, the closing price of SPI Common
Stock was $6/5//8.  On _______________, 1996, the last full trading day prior to
the date of this Proxy Statement and Prospectus, the closing price was $_____.

     Holders of SPI 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.  SPI 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, SPI can rectify a failure to meet
this distribution requirement by paying dividends after the close of a
particular taxable year.

                                       60
<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
May 6, 1996, PSI had outstanding 73,042,480 shares of Common Stock (exclusive of
shares issuable upon conversion of PSI's convertible stock and shares subject to
options), 7,000,000 shares of Class B Common Stock and 13,484,080 shares of
preferred 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
acquisition by such person of beneficial ownership (within the meaning of the
Code) of the maximum amount of capital

                                       61
<PAGE>
 
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 agreements and goodwill), and (ii) less FFO attributable to minority
interest.  FFO is a supplemental performance

                                       62
<PAGE>
 
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 May 6, 1996, PSI had 11 series of preferred stock outstanding:  eight
series of senior preferred stock (the "Senior Preferred Stock") and three 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 proportionate 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 proportionate stated value (ranging
from 8.45% 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
proportionate 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 December 31, 2000 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), proportionate 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 second 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.

     The third 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 of $1,916,038 per quarter, (iii) is
convertible at the option of the holder at any time into Common Stock at a
conversion price of 35.014 shares of Common Stock for each share of such
convertible preferred stock (subject to adjustment under certain circumstances)
and (iv) on March 31, 2000 will be automatically converted into Common Stock at
the conversion price described above.

     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, (ii) a minimum liquidation
preference of $31,200,000, plus all accrued and unpaid dividends, in the case of
the second series of convertible preferred stock and (iii) a minimum liquidation
preference of $58,955,000, plus all accrued and unpaid dividends, in the case of
the third 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 SPI Common Stock may, in some instances, be entitled
to require SPI to purchase his or her shares for cash at their fair market value
as of the day before the first announcement of the terms of the Merger,
excluding any appreciation or depreciation in consequence of the Merger.  The
general terms of the Merger were first announced on March 4, 1996.  The
following is a brief summary of the procedures to be followed by a SPI
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 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 SPI 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 SPI Common Stock.  This 5% requirement is applicable because SPI
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 SPI to purchase his or her
shares of SPI Common Stock must:

         (1) vote against the Merger any or all of the shares of SPI Common
     Stock entitled to be voted (shares of SPI Common Stock not voted are not
     considered to be voted against the Merger and will not be counted toward
     the 5% minimum for Dissenters' Rights to exist); provided that if a SPI
     Shareholder votes part of the shares entitled to be voted in favor of the
     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 SPI 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 SPI Common Stock
     demanded to be purchased by SPI and a statement as to claimed fair market
     value of such shares at March 1, 1996; and

         (3) submit for endorsement, within 30 days after the date on which the
     notice of approval of the Merger by SPI Shareholders described below is
     mailed to such shareholders, to SPI 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 Merger 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 Merger will be voted in favor of
the Merger.  Accordingly, shares covered by such a proxy will not be Dissenting
Shares.  In addition, a vote in favor of the Merger, 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 SPI Common Stock
have made demands for payment on or prior to the date of the meeting of SPI
Shareholders to approve the Merger, and have voted against the Merger at the
meeting, within 10 days after the date of the approval of the Merger, SPI will
mail to each Dissenting Shareholder who holds SPI Common Stock a notice of such
approval together with a statement of the price determined by SPI 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 followed if the
shareholder desires to exercise Dissenter's Rights.  The statement of price will
constitute an offer by SPI to purchase at the price stated therein any
Dissenting Shares.

     If SPI and the Dissenting Shareholder agree that any shares of common stock
of SPI 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

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<PAGE>
 
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 Merger are satisfied, whichever
is later.  If SPI denies that the shares are Dissenting Shares or if SPI 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 Merger by SPI Shareholders 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 SPI Common Stock.  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 SPI to the shareholder upon the
surrender of the certificates representing such shares to SPI.  The costs of the
proceeding shall be apportioned as the  court considers equitable, but if the
appraisal exceeds the price offered by SPI, it shall pay the costs, and if the
appraisal is more than 125% of the price offered by SPI, SPI 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 SPI's consent.  Written demands for payment and submissions for
endorsement must be addressed to Storage Properties, Inc., 701 Western Avenue,
Suite 200, Glendale, California 91201-2397, attention:  Investor Services
Department or to SPI's transfer agent, The First National Bank of Boston, 150
Royall Street, Mail Stop 45-02-53, Canton, Massachusetts 02021.

     Any reference to "Dissenting Shareholder" in this section "Dissenting
Shareholders' Rights of Appraisal" means the recordholder of Dissenting Shares
of SPI 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."

     SPI Shareholders are entitled, upon written demand, to inspect and copy the
record of SPI Shareholders at any time during usual business hours to
communicate with other SPI Shareholders with respect to the Merger.

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<PAGE>
 
                       CERTAIN FEDERAL INCOME TAX MATTERS

     The following discussion summarizes the material federal income tax
considerations of the Merger and the subsequent ownership and disposition of
shares of PSI Common Stock that are generally applicable to SPI Shareholders.
SPI and PSI do not plan to obtain any rulings from the Internal Revenue Service
("IRS") concerning tax issues with respect to the Merger or the qualification of
SPI 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 SPI, has reviewed the following discussion and is of the opinion that this
discussion fairly summarizes the material federal income tax considerations to a
SPI Shareholder as a result of the Merger 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 SPI and PSI and
certain representations made by SPI, PSI and certain shareholders of SPI.  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 SPI 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 SPI SHAREHOLDERS, SPI
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 MERGER

     The Merger is intended to be a "reorganization" for federal income tax
purposes, and accordingly no gain or loss will be recognized by SPI or PSI in
connection with the Merger; and no gain or loss will be recognized by SPI
Shareholders who receive solely PSI Common Stock in exchange for their SPI
Common Stock in the Merger (but all SPI Shareholders will recognize ordinary
income in the amount of any Required REIT Distributions made to them).  No
rulings have been or will be requested from the IRS regarding the Merger or any
other aspect of the matters discussed in this Proxy Statement and Prospectus.
Hogan & Hartson L.L.P., counsel to SPI, has rendered an opinion that the Merger
will constitute a reorganization under Section 368(a) of the Code, based on
certain factual assumptions and representations made by SPI, PSI and certain SPI
Shareholders.  Of particular importance are certain assumptions and
representations relating to the "continuity of interest" requirement discussed
below.

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

     Reorganization Consequences to SPI and PSI.  As a result of reorganization
treatment, SPI and PSI will not recognize gain or loss because of the Merger.
PSI will also succeed to the assets, liabilities, and tax attributes of SPI.
Accordingly, following the Merger, PSI will hold the properties of SPI with a
carryover tax basis, determined by reference to the historic basis of those
assets in the hands of SPI.  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 SPI Shareholders who may be
taxable as a result of the transaction.

     Exchange of SPI Common Stock Solely for PSI Common Stock.  As a result of
reorganization treatment (i) no gain or loss will be recognized by SPI
Shareholders who exchange their SPI Common Stock solely for PSI Common Stock
pursuant to the 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 SPI Common

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<PAGE>
 
Stock surrendered, and (iii) provided such SPI 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 SPI Common Stock.

     SPI Shareholders Receiving Only Cash.  A SPI Shareholder who exchanges SPI
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
SPI 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).

     SPI Shareholders Receiving Cash and PSI Common Stock.  As a result of
reorganization treatment (i) a SPI Shareholder who, pursuant to the Merger and
subject to the conditions of the Cash Election, exchanges SPI 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 SPI 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 SPI 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 SPI Common Stock surrendered for
the PSI Common Stock, provided that the SPI Common Stock is held as a capital
asset at the Effective Time.

     Required REIT Distributions.  The Required REIT Distributions would not be
treated as cash paid in exchange for the SPI 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.  SPI
Shareholders that receive cash in lieu of a fractional share of PSI Common Stock
pursuant to the Merger will recognize capital gain or loss equal to the
difference between the tax basis allocable to the fractional share and the cash
paid for it, provided that the SPI Common Stock is held as a capital asset at
the Effective Time.

     Failure to Qualify for Reorganization Treatment.  In the event that the
Merger does not qualify as a reorganization, the Merger likely would be treated
as a taxable sale by SPI of its assets and a contemporaneous liquidation.  SPI
presumably would not incur a federal income tax liability as a result of this
deemed sale because of the contemporaneous deemed liquidating distribution.  SPI
Shareholders would recognize income or loss equal to the difference between the
tax basis of PSI Common Stock and the sum of the fair market value of the PSI
Common Stock and the cash received in exchange for SPI Common Stock, but some of
the income could be ordinary income.  SPI Shareholders 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 Merger, and the holding period would not include
the period during which their SPI Common Stock were held.  PSI would receive a
basis in the properties acquired from SPI equal to their fair market value.

OPINION OF COUNSEL

     Hogan & Hartson L.L.P., counsel to SPI, has rendered an opinion to SPI to
the effect that (i) for federal income tax purposes, the Merger 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 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 (iii) the discussion under the heading "Certain
Federal Income Tax Matters" fairly summarizes the federal income tax
considerations that are material to SPI Shareholders as a result of the Merger
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

                                       68
<PAGE>
 
factual and legal matters made by PSI and SPI that relate both to the
qualification of PSI as a REIT and to the qualification of the Merger as a
reorganization, and specific representations regarding the expected continued
ownership of PSI Common Stock to be received in the Merger.  In addition, as
discussed above, the Opinion of Counsel expressly assumes, based upon certain
representations of the management of PSI and SPI that the "continuity of
interest" requirement necessary for the Merger to qualify as a reorganization
will be satisfied.  See "The Merger -- Continuity of Interest Assumption" and
"The Merger -- 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 the Merger in accordance with the terms of
the Merger Agreement.  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 the Merger is
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 Merger or any other transaction (including the tax consequences
of the Merger as applied to specific shareholders of SPI (or classes of
shareholders of SPI); the tax consequences of the Merger to SPI or PSI
(including whether any entity will recognize any gain in the Merger and PSI's
adjusted tax basis in the assets of SPI acquired in the Merger); the application
of the "golden parachute" provisions, the alternative minimum tax provisions,
and any other provisions of the Code (other than Section 368(a) of the Code) to
the Merger and/or participants therein; and whether shareholders of SPI who have
provided or will provide services to SPI or PSI will recognize compensation
income, either as a result of the Merger 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;

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<PAGE>
 
      (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 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 PSCC, 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

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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."

  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

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<PAGE>
 
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
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."

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<PAGE>
 
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 receives 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 merger with
SPI), 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.

  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 Merger).  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. delivered an 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

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<PAGE>
 
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 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

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<PAGE>
 
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, any accumulated
earnings and profits 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 would have been required to distribute any such 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 any accumulated earnings and profits of PSMI acquired by PSI was
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 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 PSMI Merger occurred (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

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<PAGE>
 
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 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.

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<PAGE>
 
  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 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

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<PAGE>
 
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 Shareholders in states having taxing jurisdiction
over them may differ from the federal income tax treatment.  Accordingly, no
discussion of state taxation of PSI 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 Merger 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.  Mr. Goldberg also owns
7,000 shares of SPI 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 SPI Shareholder as a result of the Merger, and the
subsequent ownership of PSI Common Stock, as well as to the effect that each of
the Merger will constitute a reorganization under Section 368(a) of the Code
(based on certain factual assumptions and representations made by SPI, PSI and
certain SPI Shareholders).  Hogan & Hartson L.L.P. has performed certain legal
services on behalf of PSI, including the representation of PSI in the PSMI
Merger.

                                    EXPERTS

  The consolidated financial statements of PSI appearing in PSI's Annual Report
(Form 10-K), as amended by a Form 10-K/A (Amendment No. 2) dated May 14, 1996,
for the year ended December 31, 1995 and incorporated by reference in this Proxy
Statement and Prospectus have been audited by Ernst & Young LLP, independent
auditors, as set forth in their reports with respect thereto and incorporated
herein by reference. 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 SPI for the year ended December 31, 1995 appearing
in this Proxy Statement and Prospectus and in the Annual Report on Form 10-K of
SPI 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 reports 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 and SPI since their respective organization,
will be in attendance at the special meeting of SPI 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 SPI Shareholder wishes to submit for consideration for
inclusion in the proxy statement for the 1996 annual meeting of shareholders
must be received by SPI no later than July 1, 1996.  Shareholder proposals
should be addressed to:  701 Western Avenue, Suite 200, Glendale, California
91201-2397.

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<PAGE>
 
  GLOSSARY

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

  "Merger."  The merger of SPI with and into PSI.

  "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.

  "SPI."  Storage Properties, Inc., a REIT organized as a California
corporation.

  "SPI Common Stock."  Shares of Common Stock, par value $.05 per share, of SPI.

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

  "REIT."  A real estate investment trust.

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<PAGE>
 
                                                                      Appendix A


                      AGREEMENT AND PLAN OF REORGANIZATION


     THIS AGREEMENT AND PLAN OF REORGANIZATION ("Agreement") is entered into as
of this 4th day of March, 1996, by and between PUBLIC STORAGE, INC., a
California corporation ("PSI"), and STORAGE PROPERTIES, INC., a California
corporation ("SPI").

     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 merger of SPI
with and into PSI in accordance with the applicable provisions of the General
Corporation Law of California (the "GCLC") and an Agreement of Merger
substantially in the form attached hereto as Exhibit A ("Merger Agreement").

     B.  PSI and SPI 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), SPI will be merged with and into PSI (the "Merger") in accordance with
the terms, conditions and provisions of this Agreement and the Merger Agreement.
The Merger shall become effective at the time at which the Merger Agreement,
together with the requisite Officers' Certificates of PSI and SPI, are filed
with the California Secretary of State in accordance with the GCLC (the
"Effective Time").  PSI and SPI 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."

         2.2 EFFECT OF THE MERGER.  At the Effective Time:

          2.2.1     CONSTITUENT CORPORATIONS.  The separate corporate existence
of SPI shall cease and the Surviving Corporation shall thereupon succeed,
without other transfer, to all the rights and property of SPI and shall be
subject to all the debts and liabilities of SPI 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 SPI shall be
limited to the property affected thereby immediately prior to the Effective
Time; and any action or proceeding pending by or against SPI 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.

         2.3 CONVERSION OF SPI SHARES.  The manner of converting the outstanding
shares of Common Stock ($.05 par value) of SPI (the "SPI Shares") into cash
and/or shares of Common Stock ($.10 par value) of PSI (the "PSI Shares") shall
be as follows:

                                      A-1
<PAGE>
 
          2.3.1  CASH ELECTION.  At the Effective Time, subject to Sections 2.6
and 6.8 hereof, each SPI 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 $7.31 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 SPI 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
$7.31 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 SPI
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 Merger.
In lieu of any such fractional share interests, each holder of SPI Shares who
would otherwise be entitled to such fractional share will, upon surrender of the
certificate representing such SPI Shares, receive a whole PSI Share if such
fractional share to which such holder would otherwise have been entitled is .5
of a PSI Share or more, and such fractional share shall be disregarded if it
represents less than .5 of a 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 NYSE of the PSI Shares at the Effective Time by (ii) the factional
interest.

         2.5 PROCEDURE FOR CASH ELECTION.  At the time of the mailing of the
Proxy Statement and Prospectus provided for in Section 6.5 hereof, PSI will send
to each holder of record of SPI Shares at the record date for SPI meeting 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 SPI 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 Merger has 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 SPI 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 SPI
Shares covered thereby shall not be treated as Cash Election Shares, and shall
be converted in the Merger as provided in Section 2.3.2 hereof.  The Exchange
Agent may, with the mutual agreement of PSI and SPI, 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.  If the aggregate number of Cash Election
Shares and Dissenting Shares (as defined below) is 20% or less than the number
of SPI Shares outstanding as of the record date for the meeting of shareholders
of SPI referred to in Section 6.2, then each Cash Election Share shall be
converted in the Merger into the right to receive the Cash Election Price.

                                      A-2
<PAGE>
 
          2.6.2  PRORATION.  If the aggregate number of Cash Election Shares and
Dissenting Shares exceeds 20%, then each Cash Election Share shall be converted
in the Merger into the right to receive cash or into PSI Shares as follows:  the
number of Cash Election Shares owned by a holder of SPI Shares that shall be
converted into the right to receive the Cash Election Price shall equal the
number obtained by multiplying (i) (A) 20% of outstanding SPI Shares less (B)
the number of Dissenting Shares (as hereinafter defined), 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.  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 to receive the Cash Election Price even if the aggregate number
of Cash Election Shares and Dissenting Shares exceeds 20% (but not 50%) of the
number of SPI Shares outstanding as of the record date for the meeting of
shareholders of SPI referred to in Section 6.2.

         2.7 DISSENTING SHARES.  SPI 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
SPI Shares pursuant to these provisions of the GCLC shall receive payment
therefor from the Surviving Corporation in accordance therewith.  If any holder
of SPI 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 SPI Shares, such SPI Shares shall automatically be
converted into the right to receive PSI Shares pursuant to Section 2.3.2 hereof.

         2.8 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.

         2.9 CANCELLATION OF SHARES HELD OR OWNED BY PARTIES.  At the Effective
Time, any SPI 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 SPI 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 SPI 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 SPI 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 SPI 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 SPI 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 SPI Shares evidenced thereby
were converted.  However, until such outstanding certificates formerly
evidencing SPI 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 SPI 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 SPI Shares on the records of SPI and, if
certificates formerly evidencing such shares are presented to the Surviving

                                      A-3
<PAGE>
 
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 SPI, a meeting (the "Closing") shall take place as promptly as
practicable thereafter at which the 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 by SPI, PSI and SPI shall execute and deliver the
Merger Agreement, together with the requisite Officers' Certificates, for filing
with the California Secretary of State.  The Merger Agreement, 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 SPI.  SPI represents,
warrants and agrees with PSI that:

         4.1 AUTHORIZATION.  Subject to approval of this Agreement by the
shareholders of SPI, (i) the execution, delivery and performance of this
Agreement by SPI has been duly authorized and approved by all necessary
corporate action of SPI, and (ii) SPI 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 ORGANIZATION AND RELATED MATTERS.  SPI 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 SPI.  SPI has no direct or
indirect equitable or beneficial interest in any other corporation.

         4.3 CAPITAL STOCK.  The authorized capital stock of SPI consists solely
of (i) 100 million shares of Common Stock ($.05 par value), 3,348,167 of which
were issued and outstanding as of January 31, 1996 and (ii) 10 million shares of
Preferred Stock ($.05 par value), none of which were issued and outstanding as
of January 31, 1996.  All of the issued and outstanding shares of Common Stock
of SPI have been duly and validly authorized and issued, and are fully paid and
nonassessable.  There are no options or agreements to which SPI is a party or by
which it is bound calling for or requiring the issuance of any of SPI's capital
stock.

         4.4 CONSENTS AND APPROVALS; NO VIOLATION.  Assuming approval of the
Merger and of this Agreement by the shareholders of SPI, neither the execution
and delivery of this Agreement nor the consummation by SPI 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 and Officers'
Certificates pursuant to the GCLC and appropriate documents with the relevant
authorities of other states in which SPI is authorized to do business, (D) in
connection with any state or local tax which is attributable to the beneficial
ownership of SPI'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 SPI or adversely affect
the ability of SPI 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 SPI is a party or any of its

                                      A-4
<PAGE>
 
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
SPI or adversely affect the ability of SPI to consummate the transactions
contemplated hereby; or (iv) assuming the consents, approvals, authorizations or
permits and filings or notifications referred to in this Section 4.4 are duly
and timely obtained or made, violate any order, writ, injunction, decree,
statute, rule or regulation applicable to SPI or its properties or assets,
except for violations which would not in the aggregate have a material adverse
effect on SPI or adversely affect the ability of SPI to consummate the
transactions contemplated hereby.

         4.5 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 SPI, threatened against SPI or
involving any of its properties or assets.

         4.6 SEC REPORTS.  Since January 1, 1993, SPI 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 "SPI SEC Reports").  None
of the SPI 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.

         4.7 FINANCIAL STATEMENTS.  The financial statements included in the SPI
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 SPI as
of their respective dates, and the results of operations of SPI for the periods
presented therein (subject, in the case of the unaudited interim financial
statements, to normal year-end adjustments).

         4.8 ABSENCE OF CERTAIN CHANGES OR EVENTS.  Since January 1, 1996, the
business of SPI 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.

         4.9 S-4 REGISTRATION STATEMENT AND PROXY STATEMENT AND PROSPECTUS.
None of the information supplied or to be supplied by SPI for inclusion or
incorporation by reference in the S-4 Registration Statement or the 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 Proxy Statement and Prospectus, at the time of the mailing of the
Proxy Statement and Prospectus and at the time of the meetings of the
shareholders of SPI, 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.

         4.10 INSURANCE.  All material insurance of SPI is currently in full
force and effect and SPI has reported all claims and occurrences to the extent
required by such insurance.

         4.11 DISCLOSURE.  The representations and warranties by SPI 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 SPI that:

         5.1 AUTHORIZATION.  Subject to approval of this Agreement by the Board
of Directors of PSI, (i) the execution, delivery and performance of this
Agreement by PSI has been duly authorized and approved by all necessary

                                      A-5
<PAGE>
 
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.

         5.3 CAPITAL STOCK.  The authorized capital stock of PSI consists solely
of (i) 200,000,000 shares of Common Stock ($.10 par value), 71,518,796 of which
were issued and outstanding as of January 31, 1996, (ii) 7,000,000 shares of
Class B Common Stock ($.10 par value), all of which are issued and outstanding
and (iii) 50,000,000 shares of Preferred Stock ($.01 par value), 13,450,850 of
which were issued and outstanding as of January 31, 1996.  All of the issued and
outstanding shares of Common Stock, Class B Common Stock and Preferred Stock of
PSI have been duly and validly authorized and issued, and are fully paid and
nonassessable.  Other than options under PSI's employee stock option plan and
PSI's convertible capital stock 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 approval of
this Agreement by the Board of Directors of PSI, the issuance of the PSI Shares
in the Merger will have been duly and validly authorized and, when issued and
delivered as provided in this Agreement, the PSI Shares will be 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.  Assuming the approval of the
Merger 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 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
Agreement 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 SPI'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

                                      A-6
<PAGE>
 
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, 1996, 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 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 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 Proxy Statement and Prospectus, at the time of the mailing of the
Proxy Statement and Prospectus and at the time of the meetings of the
shareholders of SPI, 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.

         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
and SPI 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.  SPI will not issue
any capital stock or debt securities convertible into capital stock.  Each of
PSI and SPI will promptly notify the other 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 MEETING OF SHAREHOLDERS.  SPI 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
the affirmative vote of (i) a majority of the outstanding SPI Shares entitled to
vote at the SPI shareholders meeting and (ii) a majority of the SPI Shares
voting at the meeting of SPI shareholders not held by PSI.

         6.3 TAX REPORTING.  Each of PSI and SPI agrees to report the Merger 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.

                                      A-7
<PAGE>
 
         6.4  ACQUISITION PROPOSALS.  SPI will not 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 SPI, or any purchase of all or any significant portion of the assets
of SPI, or any equity interest in SPI, 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 SPI 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 to breach their fiduciary duty to SPI's
shareholders under applicable law as advised by counsel.  SPI 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 SPI, 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.  PSI and SPI will promptly
prepare and file with the SEC a preliminary proxy statement in connection with
the vote of shareholders of SPI with respect to the Merger.  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 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 SPI Shares in the Merger (such proxy statement/prospectus, together
with any amendments thereof or supplements thereto, in the form or forms to be
mailed to the shareholders of SPI, being herein called the "Proxy Statement and
Prospectus").  PSI and SPI 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 SPI will use its best efforts to cause the Proxy Statement
and Prospectus to be mailed to its shareholders at the earliest practicable
date.  SPI agrees that if at any time prior to the Effective Time any event with
respect to SPI should occur which is required to be described in an amendment
of, or a supplement to, the 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 SPI and (ii) the Proxy Statement and
Prospectus will (with respect to SPI) 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
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 SPI
and (ii) the 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 and SPI shall: (i) promptly make its
respective filings and thereafter make any other required submissions under all
applicable laws with respect to the Merger 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.  SPI 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 $.08 per
share, (ii) pre-Merger 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 SPI (as defined below) as of the Effective Time
exceeds the estimated Net Asset Value of SPI as of June 30, 1996 and (iii)
additional pre-Merger cash distributions required to satisfy SPI's REIT
distribution requirements (the number of PSI Shares issued in the Merger 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 SPI is the sum of (a) the fair market value of SPI's real
estate assets as determined by appraisal by Charles R. Wilson & Associates, Inc.
as of January 31, 1996, and (b) the book value of SPI's non-real estate assets
as

                                      A-8
<PAGE>
 
of the date of determination and less (c) SPI's liabilities as of the date of
determination and less (d) the amount payable to PSI under the Advisory
Agreement dated June 23, 1989 as applicable to a disposition of SPI's
properties.  The determination of book value and liabilities shall be from SPI's
financial statements prepared in accordance with generally accepted accounting
principles on a basis consistent with prior periods.  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     SHAREHOLDER APPROVAL.  This Agreement and the transactions
contemplated hereby shall have been duly approved by the shareholders of SPI as
contemplated by Section 6.2.

          7.1.2     BOARD APPROVAL.  This Agreement and the transactions
contemplated hereby shall have been duly approved by the Board of Directors of
PSI.

          7.1.3     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 either PSI or SPI.

          7.1.4     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.

          7.1.5     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.

          7.1.6     LISTING OF PSI SHARES ON NYSE.  The PSI Shares shall have
been approved for listing on the NYSE upon official notice of issuance.

          7.1.7     SPI FAIRNESS OPINION.  The Board of Directors of SPI shall
have received the opinion of Robert A. Stanger & Co., Inc. in form and substance
satisfactory to it to the effect that the consideration to be received by the
shareholders of SPI in the Merger is fair to such shareholders from a financial
point of view, and such opinion shall not have been withdrawn or revoked.

          7.1.8     TAX OPINION.  The Board of Directors of PSI and SPI shall
have received a legal opinion of Hogan & Hartson L.L.P. that the Merger will
qualify as a tax-free reorganization under Section 368(a) of the Internal
Revenue Code of 1986, as amended.

         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:

                                      A-9
<PAGE>
 
          7.2.1  ACCURACY OF REPRESENTATIONS; PERFORMANCE OF AGREEMENTS.  Each
of the representations and warranties of SPI 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 SPI 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 SPI 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 SPI, to the effect that, to the best
of their knowledge, all representations and warranties of SPI 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 SPI 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.

          7.2.3  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 SPI.

          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 SPI
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 SPI Shares.

          7.3    CONDITIONS TO OBLIGATIONS OF SPI.  The obligations of SPI 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 SPI 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.  SPI shall have received such
certificates of officers of PSI as SPI 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.

     8.  TERMINATION.

          8.1    TERMINATION BY MUTUAL CONSENT.  This Agreement may be
terminated and the Merger may be abandoned at any time prior to the Effective
Time, before or after shareholder approval, by the mutual written consent of PSI
and SPI.

          8.2    TERMINATION BY EITHER PSI OR SPI. This Agreement may be
terminated and the Merger may be abandoned by action of the Board of Directors
of either PSI or SPI if (i) the Merger shall not have been consummated by March
31, 1997 (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 Merger 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 Merger and such
order, decree, ruling or other action shall

                                      A-10
<PAGE>
 
have become final and nonappealable; or (iii) the shareholders of SPI shall have
failed to approve this Agreement and the transactions contemplated hereby at its
meeting of shareholders.

         8.3 TERMINATION BY PSI.  This Agreement may be terminated by PSI and
the Merger may be abandoned at any time prior to the Effective Time, if (i) SPI
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 SPI at or prior to such date of termination, which failure to
comply has not been cured within five business days following notice to SPI of
such failure to comply, or (ii) any representation or warranty of SPI 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 SPI 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 SPI.  This Agreement may be terminated by SPI and
the Merger 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 Merger 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 Merger is 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 Merger is not consummated, each of PSI and SPI
shall pay its own expenses, except that they shall each pay 50% of any expenses
incurred in connection with the printing of the S-4 Registration Statement and
the Proxy Statement and Prospectus, the real estate appraisals and environmental
audits of SPI'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.

         9.2 SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS.  The
respective representations and warranties of PSI and SPI contained herein or in
any certificate or document delivered pursuant hereto shall expire with and be
terminated and extinguished by the effectiveness of the Merger and shall not
survive the Effective 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 SPI, no amendment
shall be made which changes any of the principal terms of the Merger 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 Merger 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.

                                      A-11
<PAGE>
 
         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 SPI:

             Storage Properties, 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.

                                      A-12
<PAGE>
 
         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 SPI, the officers of either Constituent Corporation are fully
authorized in the name of SPI 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


                              STORAGE PROPERTIES, INC.


                              By:     /s/ B. WAYNE HUGHES
                                      --------------------------------
                                      B. Wayne Hughes
                                      Chief Executive Officer

                                      A-13
<PAGE>
 
                                                                    Exhibit A to
                                                                      Appendix A

                              AGREEMENT OF MERGER



     THIS AGREEMENT OF MERGER ("Agreement") is entered into as of this _____ day
of _____________, 1996, by and between PUBLIC STORAGE, INC., a California
corporation ("PSI"), and STORAGE PROPERTIES, INC., a California corporation
("SPI"), 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, $.10 par value (the "PSI Shares"), ___________ of which are issued
and outstanding, 7,000,000 shares of Class B Common Stock, all of which are
issued and outstanding and 50,000,000 shares of Preferred Stock ($.01 par
value), __________ of which are issued and outstanding.

     B.  SPI was incorporated in 1989 under the laws of California, and on the
date hereof its authorized capital stock consists of 100,000,000 shares of
Common Stock, $.05 per value (the "SPI Shares"), 3,348,167 of which are issued
and outstanding and 10,000,000 shares of Preferred Stock, $.05 par value, none
of which are issued and outstanding.

     C.  PSI and SPI have entered into an Agreement and Plan of Reorganization
dated as of March 4, 1996 (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 SPI 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), SPI will be
merged with and into PSI (the "Merger") and PSI shall be the surviving
corporation.  PSI and SPI 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 SPI, 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 SPI shall cease and the
Surviving Corporation shall thereupon succeed, without other transfer, to all
the rights and property of SPI and shall be subject to all the debts and
liabilities of SPI 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 SPI shall be limited to the property affected
thereby immediately prior to the Effective Time; and any action or proceeding
pending by or against SPI may be prosecuted to judgment, which shall bind the
Surviving Corporation, or the Surviving Corporation may be proceeded against or
substituted in its place.

                                     E.A-1
<PAGE>
 
          (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.

          (c) 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.

                                   ARTICLE II
                                   ----------

         2.1 CONVERSION OF SPI SHARES.  The manner of converting the outstanding
SPI 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
SPI 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 SPI 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 SPI
Shares who would otherwise be entitled to such fractional share will, upon
surrender of the certificate representing such SPI 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.  SPI 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 SPI Shares pursuant to
these provisions of the GCLC shall receive payment therefor from the Surviving
Corporation in accordance therewith.  If any holder of SPI 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 SPI Shares, such
SPI 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 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 SPI Shares owned by PSI shall be cancelled and retired and no shares
shall be issuable, and no cash shall be exchangeable, with respect thereto.

                                     E.A-2
<PAGE>
 
         2.6  EXCHANGE OF CERTIFICATES.  After the Effective Time, each holder
of a certificate theretofore evidencing outstanding SPI 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 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
SPI 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 SPI 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 SPI 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 SPI 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 SPI Shares evidenced thereby were
converted.  However, until such outstanding certificates formerly evidencing SPI
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 SPI 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 SPI Shares on the records of SPI 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, and shall
confer no right, benefit or interest upon any other person, including
shareholders of the respective parties.

         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 SPI, the officers of either Constituent Corporation are fully
authorized in the name of SPI 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
                                      Assistant Secretary


                                STORAGE PROPERTIES, INC.



                                By: _________________________________
                                      B. Wayne Hughes
                                      Chairman of the Board of Directors and
                                      Chief Executive Officer



                                By: _________________________________
                                      Obren B. Gerich
                                      Secretary

                                     E.A-4
<PAGE>

                                                                      APPENDIX B

     APPRAISAL OF A
     EIGHT-PROPERTY PORTFOLIO
     NATIONWIDE
 



     PREPARED FOR
     STORAGE PROPERTIES INC., and
     PUBLIC STORAGE INC.
     600 NORTH BRAND BOULEVARD
     3RD FLOOR
     GLENDALE, CALIFORNIA



     PREPARED BY
     CHARLES R. WILSON & ASSOCIATES, INC.
     199 SOUTH LOS ROBLES AVENUE
     SUITE 540
     PASADENA, CALIFORNIA 91101

 
     FEBRUARY 1996
<PAGE>
 
March  29, 1996


STORAGE PROPERTIES INC., and
PUBLIC STORAGE INC.
600 North Brand Boulevard, 3rd Floor
Glendale, California  91221
 
Re: Market Value Appraisal
    Eight-Property Portfolio
    Job File No. 960018
 
Self-Storage
- ------------
20302   4425 South Eastern Avenue                  Las Vegas, NV
20303   6990 West 79th Street                      Burbank, IL
20304   365 West Manchester Boulevard              Los Angeles, CA
20305   7800 Fenton Street                         Silver Springs, MD
20306   35360 Fircrest Street                      Newark, CA
20307   72 Emerson Place                           Brooklyn, NY
26001   669 Glenwood Avenue (Leasehold Interest)   Hillside, NJ (62.5% Interest)

Vacant Land
- -----------
Carmel Mountain Ranch APN 313-549-07-00            San Diego, CA


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 and Leasedhold 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
   Storage Properties Inc.
   Page -2-

   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  Storage Properties Inc.
   (SPI) and 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 and
   Leasehold Market Value of the Portfolio, as of February 29, 1996, is:

              TWENTY-THREE MILLION, FIVE HUNDRED THOUSAND DOLLARS
              ---------------------------------------------------
                                 ($23,500,000)

   Sincerely
   CHARLES R. WILSON & ASSOCIATES, INC.



   /s/ CHARLES R. WILSON

   Charles R. Wilson, MAI, CRE
   State of California
   Certification #AG002172
<PAGE>
 
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 eight separate locations in six states and
are specifically identified by street address below:

<TABLE>
<CAPTION>
                                                                  Net             No.
                                                               Rentable SF       Units
                                                               -----------       -----
<S>                                                            <C>               <C>
Self-Storage
- ------------
20302          4425 So. Eastern Ave., Las Vegas, NV.........      64,740          517
20303          6990 West 79th Street Burbank, IL............      50,525          471
20304          365 West Manchester Bl., Los Angeles, CA.....      43,150          547
20305          7800 Fenton St., Silver Springs, MD..........      57,625          813
20306          35360 Fircrest Street, Newark, CA............      58,582          619
20307          72 Emerson Place, Brooklyn, NY...............      49,745          792
26001          669 Glenwood Avenue, Hillside, NJ /(1)/......      74,200          840
                                                                 -------       ------
TOTAL ......................................................     398,567        4,599
 
Vacant Land
- -----------
Carmel Mountain Ranch APN 313-549-07-00.....................     118,962 Sq.Ft.
</TABLE>
/(1)/ Valuation includes only 62.5% interest in the leasehold estate.


PURPOSE, FUNCTION AND SCOPE OF THE APPRAISAL

The purpose of this appraisal is to estimate the Fee Simple and Leasehold Market
Value of the portfolio and to present a summary of conclusions.

The function of this appraisal is for use only by our clients, Storage
Properties Inc.,  and their advisors in connection with the proposed merger with
and into Public Storage Inc.

The scope of this assignment is in accordance with an agreement between Charles
R. Wilson & Associates, Inc. and SPI.  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.

 . 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.
<PAGE>
 
 . 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 12 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 27 sales of self storage facilities
which have occurred since August 1995.  In addition, we have analyzed the trend
in 85 sales which have transferred during the past 12 months.

 . One of the subject properties is a vacant parcel.  This parcel was appraised
using the sales comparison approach.  It is currently in escrow for $619,700.00.

PROPERTY RIGHTS APPRAISED

The property rights appraised consist of the Fee Simple Estate and Leasehold
Interest.  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 for the six operating facilities.  One facility is located on leased
land, thus the leasehold interest.

According to the Appraisal Institute, Dictionary of Real Estate Appraisal, 3nd
Edition, 1993, p. 140, "Fee Simple Estate" is defined as: "Absolute ownership
unencumbered by any other interest or estate; subject only to the limitations of
governmental powers of taxation, eminent domain, police power, and, escheat."

"Leasehold Estate" is defined on page 204 as: "The interest held by the lessee
(the tenant or renter) through a lease conveying the rights of use and occupancy
for a stated term under certain conditions."


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

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].
<PAGE>
 
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 the six operating
facilities.  We employed the Income Approach to value the one operating facility
located on leased land, and the Sale Comparison Approach to value the vacant
land parcel.

Inspections were made of each property and interviews with property management
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.
<PAGE>
 
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 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).  Trailing overall capitalization
rates in the market generally ranged from slightly less than 9% to over 10.5%.

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 February 29, 2006 was prepared.  Using the investment criteria discussed
above, the income and expenses were increased 3% 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 10.00% and 10.25% 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
12.50% and 12.75%.

The indicated value of the portfolio based upon the Income Approach is
$23,500,000.

Sales Comparison Approach
- -------------------------

In the Sales Comparison Approach, we relied most heavily upon an analysis of 27
sales of self storage properties which occurred during the past 7 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 (after adding the the value of the
leasehold interest in the ground leased property and the value of the vacant
parcel) ranged between $20,930,000 to $23,520,000 rounded.

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 $23,500,000. Most weight was given the Income Approach, as
this is the methodology employed by today's investors in self storage.
<PAGE>
 
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.
<PAGE>
 
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.

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.
<PAGE>
 
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 Storage
Properties Inc., and Public Storage Inc.  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.
<PAGE>
 
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  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, March 29, 1996, 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 January 29, 1996 and February 29, 1996.

- -  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, March 29, 1996, 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 February 29, 1996 in Fee Simple estate is:  $23,500,000.

- -  The appraisers have extensive experience in appraising properties similar to
the portfolio.

Respectfully submitted,

CHARLES R. WILSON & ASSOCIATES, INC.



/s/ CHARLES R. WILSON
- ------------------------------
Charles Ray Wilson, MAI, CRE
State of California
Certification No. AG002172
<PAGE>

                 [LETTERHEAD OF ROBERT A. STANGER & CO., INC.]

                                                                      APPENDIX C

The Special Committee of 
  The Board of Directors of
Storage Properties, Inc.
701 Western Avenue
Glendale, CA 91201

Gentlemen:

     We have been advised that Storage Properties, Inc. ("SPI") is entering into
a transaction (the "Transaction") in which SPI will be merged with Public 
Storage, Inc. ("PSI"), an affiliated, publicly traded real estate investment 
trust. In the Transaction, the shareholders of SPI will be asked to approve the 
merger of SPI into PSI and the conversion of outstanding shares of SPI Common 
Stock Series A (other than shares held by shareholders of SPI 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 SPI 
shareholders with respect to up to 20% of the outstanding SPI Common Stock, or 
669,633 shares of SPI less any Dissenting Shares, cash (collectively, the 
"Consideration"). We have been further advised that each share of SPI Common 
Stock, other than Dissenting Shares held by SPI shareholders, will be converted 
into $7.31 (the net asset value per share of SPI Common Stock based on an 
independent appraisal of SPI'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 SPI. We also have been advised that (i) cash distributions will be made to
the shareholders of SPI prior to the consummation of the Transaction to the
extent required to cause SPI's net asset value as of the date of the Transaction
to be substantially equivalent to the estimate of SPI's net asset value as of 
June 30, 1996 contained in the Joint Proxy Statement and Prospectus filed with
the Securities and Exchange Commission dated May 15, 1996, and (ii) if
additional cash distributions are required to satisfy SPI's REIT distribution
requirements and are paid to SPI shareholders prior to the consummation of the
Transaction, the Consideration would be reduced to reflect such additional cash
distributions.

     SPI 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 SPI, from a financial point of 
view, of the Consideration to be received in the Transaction.

                                       1
<PAGE>
 
     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 
        May 15, 1996;

     .  Reviewed SPI's and PSI's annual reports to shareholders filed with the
        SEC on Form 10-K for the three fiscal years ending December 31, 1993,
        1994 and 1995, which reports SPI'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 SPI's management and PSI's management;

     .  Reviewed the MAI-certified portfolio appraisal of the eight properties
        owned by SPI dated March 29, 1996 performed by Charles R. Wilson &
        Associates, Inc. (the "Appraisal"), and discussed with management of SPI
        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 SPI, and
        based in part on the Appraisal, of the current net liquidation value per
        common share of SPI's assets and projections of cash flow from
        operations, dividend distributions and going-concern values for SPI;

     .  Discussed with members of senior management of SPI and PSI conditions in
        self-storage property markets, conditions in the market for
        sales/acquisitions of properties similar to those owned by SPI, current
        and projected operations and performance, financial condition and future
        prospects of SPI and PSI;

     .  Reviewed historical market prices, trading volume and dividends for SPI 
        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 SPI and PSI. We have not 
performed an independent appraisal of the assets and liabilities of SPI or PSI 
and have relied upon and assumed the accuracy of the appraisals performed by 
Charles R. Wilson & Associates, the estimate of potential environmental 
liability provided by

                                       2
<PAGE>
 
ENSR consulting and Engineering and the legal opinion rendered by the law firm 
of Heller Ehrman White & McAuliffe concerning the interpretation of certain 
termination and fee provisions of the Advisory Agreement between SPI and PSI. We
have also relied on the assurance of SPI and PSI that any pro forma financial 
statements, projections, budgets, estimates of environmental liability, 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 SPI 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 SPI 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 SPI, 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 SPI 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
May 15, 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



                         REPORT OF INDEPENDENT AUDITORS



The Board of Directors and Shareholders
Storage Properties, Inc.


We have audited the accompanying balance sheets of Storage Properties, Inc. as
of December 31, 1995 and 1994, and the related statements of income,
shareholders' equity and cash flows for each of the three years in the period
ended December 31, 1995.  Our responsibility is to express an opinion on these
financial statements and schedules 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 Storage Properties, Inc. at
December 31, 1995 and 1994, and the results of its operations and its cash flows
for each of the three years in the period ended December 31, 1995, in conformity
with generally accepted accounting principles.



                                              ERNST & YOUNG LLP


February 27, 1996,
except for footnote 8 which date
is March 4, 1996
Los Angeles, California
<PAGE>

                            STORAGE PROPERTIES, INC.
                                 BALANCE SHEETS
                           December 31, 1995 and 1994

<TABLE>
<CAPTION>
                                                1995           1994
                                            ------------   ------------
<S>                                         <C>            <C>
              ASSETS
              ------
 
Cash and cash equivalents                    $ 3,608,000   $   2,241,000   
                                                                          
Note receivable                                        -         417,000   
                                                                          
Due from affiliate                                     -         899,000   
                                                                          
Other assets                                     169,000         237,000   
                                                                          
Unimproved land                                  578,000         578,000   
                                                                          
Real estate facilities, at cost:                                          
  Land                                         7,499,000       7,499,000   
  Buildings                                   18,419,000      18,275,000   
                                             -----------    ------------   
                                              25,918,000      25,774,000   
  Less: accumulated depreciation              (1,965,000)     (1,190,000)  
                                             -----------    ------------   
                                              23,953,000      24,584,000   
                                             -----------    ------------   
                                                                          
Total assets                                 $28,308,000    $ 28,956,000   
                                             ===========    ============   
                                                                          
  LIABILITIES AND SHAREHOLDERS' EQUITY
  ------------------------------------
                                                                          
Accrued and other liabilities                $   284,000    $    109,000   
Dividends payable                                937,000       1,339,000   
Advance payments from renters                     85,000          75,000   
                                                                          
Shareholders' equity:                                                     
                                                                          
  Preferred stock, $.05 par value,                                        
    10,000,000 shares authorized,                                        
    none issued and outstanding                        -               -   
  Common stock, $.05 par value,                                           
    100,000,000 shares authorized,                                       
    3,348,167 issued and outstanding             167,000         167,000   
  Paid-in-capital                             28,898,000      28,898,000   
  Cumulative net income                       14,304,000      12,994,000   
  Cumulative distributions                   (16,367,000)    (14,626,000) 
                                            ------------    ------------  
     Total shareholders' equity               27,002,000      27,433,000  
                                            ------------    ------------  
                                                                          
Total liabilities and shareholders'                                       
 equity                                     $ 28,308,000    $ 28,956,000  
                                            ============    ============   
</TABLE>

                            See Accompanying Notes.
<PAGE>
 
                            STORAGE PROPERTIES, INC.
                              STATEMENTS OF INCOME
       For each of the three years in the period ended December 31, 1995

<TABLE>
<CAPTION>
                                          1995         1994         1993
                                       ----------   ----------   ----------
<S>                                    <C>          <C>          <C>
REVENUES:
 
Rental income                          $3,582,000   $2,664,000   $1,433,000
Interest income - affiliate                16,000      841,000    1,997,000
Interest income - other                   148,000       52,000       17,000
                                       ----------   ----------   ----------
 
                                        3,746,000    3,557,000    3,447,000
                                       ----------   ----------   ----------
 
 
COSTS AND EXPENSES:
 
Cost of operations                      1,200,000      864,000      472,000
Management fees paid to affiliate         215,000      160,000       86,000
Depreciation and amortization             777,000      612,000      341,000
Environmental cost                         99,000            -            -
General and administrative                145,000      156,000      175,000
                                       ----------   ----------   ----------
 
                                        2,436,000    1,792,000    1,074,000
                                       ----------   ----------   ----------
 
NET INCOME                             $1,310,000   $1,765,000   $2,373,000
                                       ==========   ==========   ==========
 
 
Net income per share                   $     0.39   $     0.53   $     0.71
                                       ==========   ==========   ==========
 
Dividends declared per share           $     0.52   $     0.61   $     0.69
                                       ==========   ==========   ==========
 
Weighted average common shares          3,348,167    3,348,167    3,348,167
                                       ==========   ==========   ==========
 
</TABLE>

                            See Accompanying Notes.
<PAGE>
 
                           STORAGE PROPERTIES, INC.
                      STATEMENTS OF SHAREHOLDERS' EQUITY
             For the years ended December 31, 1995, 1994 and 1993

<TABLE>
<CAPTION>
 
 
                                   Common                               Cumulative      Cumulative         Total
                                    Stock       Common      Paid-in         Net       Distributions    Shareholders'
                                 Outstanding    Stock       Capital       Income         Declared          Equity
                                 -----------   --------   -----------   -----------   -------------    -------------
<S>                              <C>           <C>        <C>           <C>           <C>              <C>
Balances at
  December 31, 1992                3,348,167   $167,000   $28,898,000   $ 8,856,000    $(10,274,000)     $27,647,000
 
Net income                                                                2,373,000                        2,373,000
 
Cash distributions declared
  ($.69 per share)                                                                       (2,310,000)      (2,310,000)
                                   ---------   --------   -----------   -----------    ------------      -----------
 
Balances at
  December 31, 1993                3,348,167    167,000    28,898,000    11,229,000     (12,584,000)      27,710,000
 
Net income                                                                1,765,000                        1,765,000
 
Cash distributions declared
  ($.61 per share)                                                                       (2,042,000)      (2,042,000)
                                   ---------   --------   -----------   -----------    ------------      -----------
 
Balance at
  December 31, 1994                3,348,167    167,000    28,898,000    12,994,000     (14,626,000)      27,433,000
 
Net income                                                                1,310,000                        1,310,000
 
Cash distributions declared
  ($.52 per share)                                                                       (1,741,000)      (1,741,000)
                                   ---------   --------   -----------   -----------    ------------      -----------
 
Balances at
  December 31, 1995                3,348,167   $167,000   $28,898,000   $14,304,000    $(16,367,000)     $27,002,000
                                   =========   ========   ===========   ===========    ============      ===========
 
</TABLE>

                            See Accompanying Notes.
<PAGE>
 
                            STORAGE PROPERTIES, INC.
                            STATEMENTS OF CASH FLOWS
                       For each of the three years in the
                         period ended December 31, 1995
<TABLE>
<CAPTION>
 
                                                                 1995           1994           1993
                                                             -----------    -----------    -----------
<S>                                                          <C>            <C>            <C>
Cash flows from operating activities:
 
  Net income                                                 $ 1,310,000    $ 1,765,000    $ 2,373,000
 
  Adjustments to reconcile net income to
     net cash provided by operating activities:
 
  Depreciation and amortization                                  777,000        612,000        341,000
  Amortization of note premium                                         -         20,000         28,000
  Decrease in other assets                                        66,000         41,000        532,000
  (Decrease) increase in accrued and other liabilities           175,000        (68,000)       142,000
  Increase in advance payments from renters                       10,000          3,000         72,000
                                                             -----------    -----------    -----------
 
    Total adjustments                                          1,028,000        608,000      1,115,000
                                                             -----------    -----------    -----------
 
    Net cash provided by operating activities                  2,338,000      2,373,000      3,488,000
                                                             -----------    -----------    -----------
 
Cash flows from investing activities:
  Principal payments received on mortgage loans                  417,000      1,033,000      1,261,000
  Collection of due from affiliate                               899,000              -              -
  Proceeds from sale of land                                           -        127,000              -
  Acquisition of facility                                              -     (2,315,000)             -
  Additions to real estate facilities                           (144,000)      (152,000)       (10,000)
                                                             -----------    -----------    -----------
 
    Net cash provided by (used in) investing activities        1,172,000     (1,307,000)     1,251,000
                                                             -----------    -----------    -----------
 
Cash flows from financing activities:
 Dividends paid to shareholders                               (2,143,000)    (1,105,000)    (2,745,000)
                                                             -----------    -----------    -----------
 
    Net cash used in financing activities                     (2,143,000)    (1,105,000)    (2,745,000)
                                                             -----------    -----------    -----------
 
Net increase (decrease) in cash and cash equivalents           1,367,000        (39,000)     1,994,000
 
Cash and cash equivalents at the beginning of the year         2,241,000      2,280,000        286,000
                                                             -----------    -----------    -----------
 
Cash and cash equivalents at the end of the year             $ 3,608,000    $ 2,241,000    $ 2,280,000
                                                             ===========    ===========    ===========

Supplemental schedule of non-cash
investing and financing activities:
 
Acquisition of land as paydown on
 first mortgage convertible loan                             $         -    $ 1,155,000    $         -
                                                             ===========    ===========    ===========
 
Acquisition of real estate facilities in exchange
 for first mortgage convertible loans pursuant
 to purchase options                                         $         -    $ 4,566,000    $16,624,000
                                                             ===========    ===========    ===========
 
Receipt of note receivable as proceeds
 from sale of unimproved land                                $         -    $   450,000    $         -
                                                             ===========    ===========    ===========
 
</TABLE>

                            See Accompanying Notes.
<PAGE>
 
                           Storage Properties, Inc.
                         Notes to Financial Statements
                               December 31, 1995

1.  Description of the Company's Business
    -------------------------------------

         Storage Properties, Inc. (the "Company") is a California corporation
 and was organized in March 1988 and has elected to qualify as real estate
 investment trust ("REIT") for Federal income tax purposes.  As of December 31,
 1995, the Company's principal investments consisted of mini-warehouse
 facilities operated as self-storage facilities.  Mini-warehouse facilities are
 self-storage facilities offering space for rent, usually on a month-to-month
 basis.

         Pursuant to an Advisory Agreement which was entered into in June 1989
 (the "Advisory Agreement"), PS Properties Advisors, Inc. ("PSPA") was the
 Company's investment advisor through August 1995 (in August 1995, PSPA was
 merged into its parent, PSI Holdings, Inc. ("PSH"), and PSH assumed all of
 PSPA's rights and obligations under the Advisory Agreement).  In November 1995,
 there were a series of mergers among Public Storage Management, Inc. (which was
 the Company's mini-warehouse operator pursuant to a Management Agreement), PSH
 (which was the Company's investment advisor), Public Storage, Inc. and their
 affiliates (collectively, "PSMI"), culminating in the November 16, 1995 merger
 (the "PSMI Merger") of PSMI into Storage Equities, Inc., a real estate
 investment trust organized as a California corporation.  In the PSMI Merger,
 Storage Equities, Inc.'s name was changed to Public Storage, Inc. ("PSI") and
 PSI assumed all of PSMI's rights and obligations under the Advisory Agreement
 and the Management Agreement, thereby becoming the Company's investment advisor
 and the operator of the Company's mini-warehouse properties.  (As used herein,
 the term "Advisor" refers to PSI or PSPA, as the context requires.)

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.

 Revenue Recognition
 -------------------
    Property rents are recognized as earned.

 Cash and Cash Equivalents
 -------------------------

    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.

 Depreciation and Amortization
 -----------------------------

    The Company's buildings are depreciated on the straight-line basis over the
 their estimated useful lives of 25 years.  One of the Company's buildings which
 is situated on leased premises is depreciated on the straight-line basis over
 the term of the related ground lease which approximates its useful life.

    At December 31, 1995, the basis of real estate facilities for Federal income
 tax purposes (after adjustment for accumulated depreciation of $1,184,000) is
 $25,395,000.

 Net Income per Share
 --------------------
    Net income per share is computed using the weighted average common shares
 outstanding during the periods presented.
<PAGE>
 
                           Storage Properties, Inc.
                         Notes to Financial Statements
                               December 31, 1995

2.  Summary of Significant Accounting Policies (continued)
    ------------------------------------------------------

 Environmental Cost
 ------------------

    Substantially all of the Company's facilities were acquired prior to the
 time that it was customary to conduct environmental investigations in
 connection with property acquisitions.  During the fourth quarter of 1995, the
 Company completed environmental assessments of its properties to evaluate the
 environmental condition of, and potential environmental liabilities of such
 properties.  These assessments were performed by an independent environmental
 consulting firm.  Based on the assessments, the Company has expensed, as of
 December 31, 1995, an estimated $99,000 for known environmental remediation
 requirements.  Although there can be no assurance, the Company is not aware of
 any environmental contamination of any of it's property sites which
 individually or in the aggregate would be material to the Company's overall
 business, financial condition, or results of operations.

3.  First Mortgage Convertible Loans
    --------------------------------

    During 1994, the Company had one First Mortgage Convertible Loan ("FMCL")
 made to the Advisor.  The FMCL was comprised of a nonrecourse loan secured by a
 first priority deed of trust on a property that was developed and operated as a
 self-storage facility (the "Brooklyn Property") together with a purchase option
 which entitled the Company to purchase the Brooklyn Property during the period
 from June 23, 1993 to June 23, 1995 by converting the FMCL into equity
 ownership in the Brooklyn Property.

    The FMCL bore interest at 12.25% per annum and had a maturity date of June
 23, 1998.  Accrued interest was payable quarterly during the Debt Service
 Guaranty period which ended June 23, 1993 (except where extended by PSI as
 described below).  After expiration of the Debt Service Guaranty, interest on
 the FMCL would have been payable quarterly out of net property cash flow (as
 defined) of the Brooklyn Property plus any remaining interest reserve.

    The Advisor had recourse liability for payment of interest on the FMCL
 during the Debt Service Guaranty period.  In addition, if at the end of June
 1993, the annualized net cash flow from the Brooklyn Property for the preceding
 six months was less than four percent of the original principal of the FMCL,
 the Advisor was obligated to either (i) prepay all or a portion of the FMCL in
 an amount such that annualized net cash flow from the Brooklyn Property for the
 preceding six months provided a four percent yield ("Paydown Amount") or (ii)
 extend the Debt Service Guaranty through June 1994.  Under the original terms
 of the FMCL, if the Debt Service Guaranty was extended through June 1994, and
 the Brooklyn Property had not achieved the specified performance level by the
 end of June 1994, the Advisor would have been obligated to prepay the Paydown
 Amount on the FMCL.

    In June 1993, the Advisor extended the Debt Service Guaranty on the FMCL
 secured by the Brooklyn Property through June 1994.  In May 1994, the Advisor
 and the Company agreed to extend the Debt Service Guaranty to December 31,
 1994.  In consideration of the extension of the Debt Service Guaranty, the
 Advisor transferred to the Company unimproved land with an appraised value
 (based on an independent appraisal) of $1,155,000 which was applied to reduce
 the balance of the FMCL secured by the Brooklyn Property.  The Paydown Amount
 on the FMCL secured by the Brooklyn Property was determined to be $1,899,000
 (in addition to the paydown on the FMCL made in June 1994 through the transfer
 of the unimproved land), based on the annualized net cash flow from the
 Brooklyn Property for the six months ending December 31, 1994.  In December
 1994, the Advisor paid to the Company $1,000,000 towards the Paydown Amount on
 the FMCL secured by the Brooklyn Property.  The balance of $899,000 was
 reported as Due from Affiliate at December 31, 1994.  In February 1995, the
 $899,000 balance was paid to the Company by the Advisor in addition to accrued
 interest of $197,000 that was included in Other Assets at December 31, 1994.
 Effective December 31, 1994, the Company exercised its purchase option with
 respect the Brooklyn Property, thereby converting the FMCL to equity ownership.
 The Company's aggregate purchase price for the Brooklyn Property was
 $4,558,000.  The total acquisition cost of the facility of $4,566,000 includes
 the above purchase price plus $8,000 of unamortized premium on the FMCL.
 Effective January 1, 1995, the Company began operating and receiving all
 operating cash flow from the Brooklyn Property and the Advisor has no further
 obligation with respect to the converted FMCL.
<PAGE>
 
                           Storage Properties, Inc.
                         Notes to Financial Statements
                               December 31, 1995

4.  Real Estate Facilities
    ----------------------

    The Company has an undivided 62.5% interest in a mini-warehouse facility in
 Hillside, New Jersey.  The remaining 37.5% interest in the property is owned by
 an affiliate of PSI.  The facility is located on land which is leased from an
 unrelated party, however, the Company pays its share of property taxes ($69,000
 in 1995, $69,000 in 1994 and $67,000 in 1993).  The term of the lease is
 through February 28, 2011 which includes two renewal option periods of 5 years
 each.

      Future minimum lease payments (the Company's 62.5% share) with respect to
 this lease are as follows:

<TABLE>
 
        <S>                            <C>
        1996                           $   68,000
        1997                               70,000
        1998                               70,000
        1999                               70,000
        2000                               73,000
        Thereafter                        792,000
                                       ----------
                                       $1,143,000
                                       ==========
</TABLE> 

    Included in cost of operations for each of the years ended December 31,
 1995, 1994 and 1993 is $66,000, $58,000 and $58,000 in rent expense related to
 this lease.

5. Note Receivable
   ---------------

    In September 1994, the Company sold to an unaffiliated party 50% of the
 unimproved land received from the Advisor for $577,000.  The Company did not
 realize any gain or loss on the sale.  The Company received $127,000 in cash
 and a mortgage note receivable for $450,000.  The note bore interest at 9% and
 provided for monthly principal and interest payments of $14,000 through the
 maturity of the note in September 1997.  The note was paid off in full in April
 1995.

6. Shareholders' Equity
   --------------------

    PSI has an obligation (provided that there has not been any substantial
 liquidation of the Company's investments without PSI's consent) to repurchase
 the original shares of each original shareholder (at such shareholder's option)
 for a price equal to the original contribution as reduced by cash distributions
 from all sources, in the event that the original shareholder has not received
 cash distributions from all sources equal to his original contribution by no
 later than June 2003 (the "Capital Repurchase Option") (see Note 7. Advisory
 and Management Contracts and Obligations).  As of December 31, 1995, original
 shareholders have received cumulative distributions of $5.07 per share.  The
 original contribution of such share was $10.00.

    For Federal income tax purposes, all distributions declared by the Board of
 Directors in 1995, 1994 and 1993 were ordinary income.

7. Advisory and Management Contracts and Obligations
   -------------------------------------------------

    Pursuant to the Advisory Agreement, PSI advises the Company with respect to
 its investments and administers the daily operations of the Company.

    The Company has a Management Agreement with PSI (as successor-in-interest to
 Public Storage Management, Inc.).  Under the terms of the agreement, PSI
 operates the mini-warehouse facilities for a fee equal to 6% of the facilities'
 monthly gross revenue (as defined).
<PAGE>
 
                           Storage Properties, Inc.
                         Notes to Financial Statements
                               December 31, 1995

7. Advisory and Management Contracts and Obligations (continued)
   -------------------------------------------------------------

    In November 1995, the Management Agreement was amended to provide that upon
 demand from PSI or PSMI made prior to December 15, 1995, the Company agreed to
 prepay (within 15 days after such demand) up to 12 months of management fees
 (based on the management fees for the comparable period during the calendar
 year immediately preceding such prepayment) discounted at the rate of 14% per
 year to compensate for early payment.  In November 1995, the Company prepaid to
 PSI 8 months of 1996 management fees at a cost of $125,000.  The amount is
 included in other assets in the Balance Sheet at December 31, 1995 and will be
 amortized as management fee expense in 1996.

    PSI will be paid an Advisory Fee of 10% of the Company's net cash flow
 beginning when distributions to shareholders (without regard to the number of
 shares outstanding) from all sources is equal to 75% of the gross offering
 proceeds and continuing until distributions to shareholders from all sources
 equal 100% of the gross offering proceeds; thereafter, PSI will be paid an
 Advisory Fee of 20% of net cash flow and 20% of cash from sales or refinancing.
 Gross offering proceeds for which this computation is based are $32,036,000.
 Through December 31, 1995, the Company has made and declared cumulative cash
 distributions to shareholders of approximately $16,367,000.  Accordingly, the
 Company will commence paying PSI an advisory fee of 10% of the Company's net
 cash flow when $7,660,000 in additional distributions to the Company's
 shareholders have been made.

    The Advisory Agreement had an initial five-year period (through June 1994);
 thereafter, the Advisory Agreement is automatically renewed for successive two-
 year periods, subject to termination, with or without cause, by a majority of
 the directors on behalf of the Company, or by PSI, upon 60 days written notice.
 The Advisory Agreement provides for the purchase by the Company of PSI's future
 interest in the Advisory Fee upon termination of the Advisory Agreement (except
 under certain limited circumstances).

    The Capital Repurchase Option (see Note 6. Shareholders' Equity) is a
 recourse obligation of PSI.  PSI has informed the Company that it does not
 believe that it will have an obligation with respect to the Capital Repurchase
 Option.

8. SUBSEQUENT EVENT

    In March 1996, the Company and PSI agreed, subject to certain conditions, to
 merge.  In the merger, the Company would be merged with and into PSI, and each
 outstanding share of the Company's Common Stock (3,348,167 shares) would be
 converted, at the election of the shareholders of the Company, into either
 shares of PSI common stock or with respect to up to 20% of the Company's Common
 Stock, $7.31 in cash.  This dollar amount has been based on the Company's
 estimated net asset value as of June 30, 1996 (the appraised value of the
 Company's real estate assets and the estimated book value of the Company's
 other net assets).  The number of shares of PSI common stock will be based on
 dividing this same dollar amount by the average of the per share closing prices
 on the New York Stock Exchange for a specified period prior to the Company's
 shareholders' meeting.  In the event of the merger, pre-merger cash
 distributions would be made to shareholders of the Company to cause the
 Company's net asset value as of the effective date of the merger to be
 substantially equivalent to its estimated net asset value as of June 30, 1996.
 If additional cash distributions are required in order to satisfy the Company's
 REIT distribution requirements, the number of shares of PSI common stock issued
 in the merger and the amount receivable upon a cash election would be reduced
 on a pro rata basis in an aggregate amount equal to such additional
 distributions.  The merger is conditioned on, among other requirements,
 approval by PSI's board of directors, receipt of a satisfactory fairness
 opinion by the Company and approval by the shareholders of the Company.  It is
 expected that any merger would close in June or July 1996.  PSI owns
 approximately 4 percent of the Common Stock of the Company.
<PAGE>
 
                           Storage Properties, Inc.
                         Notes to Financial Statements
                               December 31, 1995

9.  Quarterly results (unaudited)
    -----------------------------

    The following is a summary of unaudited quarterly results of operations:

<TABLE>
<CAPTION>
                                                            Three months ended
                                              --------------------------------------------
                                                March       June      September   December
                                              31, 1995    30, 1995    30, 1995    31, 1995
                                              --------    --------    --------    --------
<S>                                           <C>         <C>         <C>         <C>
Revenues                                      $907,000    $931,000    $970,000    $938,000
Expenses                                       582,000     574,000     581,000     699,000
                                              --------    --------    ---------   --------
Net income                                    $325,000    $357,000    $389,000    $239,000
                                              ========    ========    ========    =========
Net income per share                          $   0.10    $   0.10    $   0.12    $   0.07
                                              ========    ========    ========    ========
Distribution declared per share               $   0.08    $   0.08    $   0.08    $   0.28
                                              ========    ========    ========    ========
 
<CAPTION> 
                                                           Three months ended
                                              --------------------------------------------
                                                March       June      September   December
                                              31, 1994    30, 1994    30, 1994    31, 1994
                                              --------    --------    --------    --------
<S>                                           <C>         <C>         <C>         <C>
Revenues                                      $812,000    $848,000    $946,000    $951,000
                                              --------    --------    --------    --------
Expenses                                       418,000     408,000     478,000     488,000
                                              --------    --------    --------    --------
Net income                                    $394,000    $440,000    $468,000    $463,000
                                              ========    ========    ========    ========
Net income per share                          $   0.12    $   0.13    $   0.14    $   0.14
                                              ========    ========    ========    ========
Distribution declared per share               $   0.07    $   0.07    $   0.07    $   0.40
                                              ========    ========    ========    ========
 
</TABLE>
<PAGE>
 
                                                                     APPENDIX F.

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
- --------------------------------------------------------------------------
OPERATIONS
- ----------

RESULTS OF OPERATIONS
- ---------------------

YEAR ENDED DECEMBER 31, 1995 COMPARED TO THE YEAR ENDED DECEMBER 31, 1994
- -------------------------------------------------------------------------

    The Company's net income for 1995 compared to 1994 reflects the impact of
converting the Brooklyn, New York FMCL to a fee interest in the property in
December 1994 and the operations of a property acquisition in June 1994.
Effective December 31, 1994, the Company exercised its option to acquire the
Brooklyn, New York property in which it held a convertible note receivable from
the Advisor.  As a result, 1995 income includes operating income from the
Brooklyn, New York property compared to interest income on the mortgage note
secured by this property.

    Net income in 1995 was $1,310,000 compared to $1,765,000 in 1994,
representing a decrease of $455,000.  Net income per share was $.39 in 1995
compared to $.53 in 1994, representing a decrease of $.14 or 26% per share.  The
decrease in net income is attributable to lower earnings on property operations
compared to the interest income that had been earned on the Brooklyn, New York
FMCL.

    Rental income increased $918,000 or 34% from $2,664,000 in 1994 to
$3,582,000 in 1995.  The improvement is attributable to an increase in occupancy
levels and rental rates at the Company's "Same Store" properties (properties
owned since June 1993) and the acquisition of an additional properties in June
1994 and the conversion of the Brooklyn property to a fee interest in December
1994.  The Company's properties had weighted average occupancy levels of 91% and
90% for 1995 and 1994, respectively.

    Interest income - affiliate decreased $825,000 from $841,000 in 1994 to
$16,000 in 1995 due to the conversion of the Brooklyn, New York FMCL to an
equity ownership in the property in December 1994.  The $16,000 earned in 1995
represents interest on the balance of the principal paydown amount on the
Brooklyn, New York FMCL collected from the Advisor in February 1995.

    Interest income - other increased $96,000 from $52,000 in 1994 to $148,000
in 1995 as a result of increases in interest rates earned and average cash
balances invested.

    Cost of operations (including management fees paid to affiliate and
depreciation and amortization) increased from $1,636,000 in 1994 to $2,192,000
in 1995 due to the acquisition of additional properties in June 1994 and
December 1994.  Cost of operations (including management fees paid to affiliate
and depreciation and amortization) at the Company's "Same Store" properties
increased slightly due to repairs and maintenance cost and management fees paid
to affiliate resulting from increased rental income.

The following table illustrates the operating trends of the Company's mini-
warehouse facilities:

<TABLE>
<CAPTION>
                                                         For the year ended December 31,
                                                         -------------------------------
                                                             1995            1994 (1)
                                                             -----           --------
<S>                                                          <C>             <C>
Weighted average occupancy level                                91%              90%
Realized monthly rent per occupied square foot (2)            $.88             $.87
Operating margin: (3)
   Before reduction for depreciation expense                    60%              61%
   After reduction for depreciation expense                     39%              39%
- -------------------
</TABLE>
(1) Includes the operations of the Brooklyn, New York property before the
    Company acquired it in December 1994 and the operations of the Newark,
    California property from June 1994.
(2) 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.
(3) Operating margins are based on the Company's operation of the facilities.
    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.
<PAGE>
 
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 the Company's facilities by PSI.

  .  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 (primarily management fees and
     repair and maintenance cost).

    Substantially all of the Company's facilities were acquired prior to the
time that it was customary to conduct environmental investigations in connection
with property acquisitions.  During the fourth quarter of 1995, the Company
completed environmental assessments of its properties to evaluate the
environmental condition of, and potential environmental liabilities of such
properties.  These assessments were performed by an independent environmental
consulting firm.  Based on the assessments, the Company has expensed, as of
December 31, 1995, an estimated $99,000 for known environmental remediation
requirements.

YEAR ENDED DECEMBER 31, 1994 COMPARED TO THE YEAR ENDED DECEMBER 31, 1993
- -------------------------------------------------------------------------

    The Company's income for 1994 reflects the conversion of the majority of its
asset base from mortgages to fee interest in the properties and the operations
of a property acquisition in June 1994.  Effective June 30, 1993, the Company
exercised its option to acquire four of five properties in which it held
convertible notes receivable from its Advisor.  As a result, income for the
first six months of 1994 includes the operating income of these properties
compared to interest income on the mortgage notes secured by these properties in
the same period in 1993.  The operations for the last six months of 1994 and
1993 include the operating income of these properties.

    Net income in 1994 was $1,765,000 compared to $2,373,000 in 1993,
representing an decrease of $608,000.  Net income per share was $.53 in 1994
compared to $.71 in 1993, representing a decrease of $.18 or 25% per share.  The
decrease in net income is attributable to lower earnings on property operations
compared to the interest income that had been earned on the FMCLs.

    Interest income from affiliate decreased $1,156,000 from $1,997,000 in 1993
to $841,000 in 1994 as a result of the conversion of $17,788,000 of FMCLs in
June 1993 to equity ownership of the facilities that had secured those FMCLs.

    Other interest income increased $35,000 from 1993 to 1994 primarily as a
result of an increase in cash balances that resulted from the Advisor making
principal paydowns of the FMCLs in June 1993 and a slight increase in interest
rates earned on invested cash balances during 1994 compared to 1993.

    Depreciation expense increased $271,000 from $341,000 in 1993 to $612,000 in
1994 as a result of a full year of depreciation with respect to the four mini-
warehouse facilities acquired in June 1993 and a partial year of depreciation on
a facility acquired in June 1994.  Depreciation in 1995 is expected to increase
as the result of a full year of depreciation on the facilities acquired in June
1994 and December 1994.

LIQUIDITY AND CAPITAL RESOURCES
- -------------------------------

    Net cash provided by operating activities (net income plus depreciation and
amortization) reflects the cash generated from the Company's business before
distributions to shareholders and capital expenditures.  Net cash provided by
operating activities has decreased from $3,488,000 in 1993 to $2,338,000 in 1995
primarily as the result of a decrease in net income attributable to earnings
from property operations being lower than the interest income that had been
earned on the FMCLs.
<PAGE>
 
    The Company's Funds From Operations ("FFO") is defined generally by the
National Association of Real Estate Investment Trusts ("NAREIT") as net income
before loss on early extinguishment of debt, gain on disposition of real estate
and non-recurring items (including environmental cost), plus depreciation and
amortization.  FFO for the years ended December 31, 1995, 1994 and 1993 was
$2,186,000, $2,377,000 and $2,714,000, 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 the Company 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 the Company.  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
the Company 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 the Company's net cash provided
by operating activities or net income, as a measure of liquidity or operating
performance.

    The following table summarizes the Company'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 the Company for
distributions to its shareholders.  The deficiency of cash available for
distributions in 1995 and 1993 were funded from cash reserves and principal
payments received on the FMCLs.

<TABLE>
<CAPTION>
                                                                         Years ended December 31,
                                                                -----------------------------------------
                                                                    1995           1994           1993
                                                                -----------    -----------    -----------
<S>                                                             <C>            <C>            <C>
Net income                                                      $ 1,310,000    $ 1,765,000    $ 2,373,000
Environmental cost                                                   99,000              -              -
Depreciation and amortization                                       777,000        612,000        341,000
                                                                -----------    -----------    -----------
Funds from operations (net cash provided by operating
 activities before changes in working capital components)         2,186,000      2,377,000      2,714,000
Capital improvements to maintain facilities                        (144,000)      (152,000)       (10,000)
                                                                -----------    -----------    -----------
Excess funds available for distributions to shareholders          2,042,000      2,225,000      2,704,000
Cash distributions to shareholders                               (2,143,000)    (1,105,000)    (2,745,000)
                                                                -----------    -----------    -----------
(Deficiency) excess of funds available for optional
 distributions to shareholders or for investment                $  (101,000)   $ 1,120,000    $   (41,000)
                                                                ===========    ===========    ===========
</TABLE>

     For 1996, the Company anticipates approximately $130,000 in capital
improvements in 1996.  During 1995, the Company's property operator commenced a
program to enhance the visual appearance of the mini-warehouse facilities
managed by it.  Such enhancements will include new signs, exterior color
schemes, and improvements to the rental offices.  Included in the 1996 capital
improvement budget are estimated costs of $19,000 for such enhancements.

     In November 1995, the Management Agreement with PSMI was amended to provide
that upon demand from PSI or PSMI made prior to December 15, 1995, the Company
agreed to prepay (within 15 days after such demand) up to 12 months of
management fees (based on the management fees for the comparable period during
the calendar year immediately preceding such prepayment) discounted at the rate
of 14% per year to compensate for early payment.  In November 1995, the Company
prepaid, to PSI, 8 months of 1996 management fees at a cost of $125,000.

REIT DISTRIBUTION REQUIREMENT
- -----------------------------

    As a REIT, the Company is not taxed on that portion of its taxable income
which is distributed to its shareholders provided that at least 95% of its
taxable income is so distributed.  Under certain circumstances, the Company can
rectify a failure to meet the 95% distribution test by making distributions
after the close of a particular taxable year and attributing those distributions
to the prior year's taxable income.  The Company has satisfied the REIT
distribution requirement for 1994 and 1995 by attributing distributions in 1995
and 1996 to the prior year's taxable income.  The extent to which the Company
will be required to attribute distributions to the prior year will depend on the
Company's operating results (taxable income) and the level of distributions as
determined by the Board of Directors.
<PAGE>
 
    Through June 23, 1993, the Advisor guaranteed that the quarterly
distributions to shareholders (including distributions by the Company of capital
or borrowed funds to shareholders) would equal $.25 per share, which
distribution guaranty has expired.

    On November 13, 1995, the Company's Board of Directors declared a regular
distribution of $.08 per share and a special distribution of $.20 per share
which was payable on January 12, 1996 to shareholders of record on December 29,
1995.

COLLECTION OF NOTE RECEIVABLE
- -----------------------------

    In connection with a sale of land to an unaffiliated third party in
September 1994, the Company received a $450,000 mortgage note.  In April 1995,
the note was paid off prior to its maturity.

PROPOSED MERGER
- ---------------

    In March 1996, the Company and PSI agreed, subject to certain conditions, to
merge.  In the merger, the Company would be merged with and into PSI, and each
outstanding share of the Company's Common Stock (3,348,167 shares) would be
converted, at the election of the shareholders of the Company, into either
shares of PSI common stock or with respect to up to 20% of the Company's Common
Stock, $7.31 in cash.  This dollar amount has been based on the Company's
estimated net asset value as of June 30, 1996 (the appraised value of the
Company's real estate assets and the estimated book value of the Company's other
net assets).  The number of shares of PSI common stock will be based on dividing
this same dollar amount by the average of the per share closing prices on the
New York Stock Exchange for a specified period prior to the Company's
shareholders' meeting.  In the event of the merger, pre-merger cash
distributions would be made to shareholders of the Company to cause the
Company's net asset value as of the effective date of the merger to be
substantially equivalent to its estimated net asset value as of June 30, 1996.
If additional cash distributions are required in order to satisfy the Company's
REIT distribution requirements, the number of shares of PSI common stock issued
in the merger and the amount receivable upon a cash election would be reduced on
a pro rata basis in an aggregate amount equal to such additional distributions.
The merger is conditioned on, among other requirements, approval by PSI's board
of directors, receipt of a satisfactory fairness opinion by the Company and
approval by the shareholders of the Company.  It is expected that any merger
would close in June or July 1996.  PSI owns approximately 4 percent of the
Common Stock of the Company.
<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 3.15) 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, 1995 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 14th day of May, 1996.

                                  PUBLIC STORAGE, INC.


                                  By: /s/ 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> 
 
/s/ B. WAYNE HUGHES          Chairman of the Board, Chief Executive         May 14, 1996
_________________________    Officer and Director (principal executive
B. Wayne Hughes              officer)
 
/s/ HARVEY LENKIN            President and Director                         May 14, 1996
_________________________
Harvey Lenkin
 
/s/ RONALD L. HAVNER, JR.    Senior Vice President and Chief                May 14, 1996
_________________________    Financial Officer (principal financial
Ronald L. Havner, Jr.        officer)
 
/s/ JOHN REYES               Vice President and Controller (principal       May 14, 1996
_________________________    accounting officer)
John Reyes
 
/s/ ROBERT J. ABERNETHY      Director                                       May 14, 1996
_________________________
Robert J. Abernethy
 
/s/ DANN V. ANGELOFF         Director                                       May 14, 1996
_________________________
Dann V. Angeloff

/s/ WILLIAM C. BAKER         Director                                       May 14, 1996
_________________________
William C. Baker

/s/ URI P. HARKHAM           Director                                       May 14, 1996
_________________________
Uri P. Harkham
</TABLE>

                                      S-3
<PAGE>
 
                                 EXHIBIT INDEX


  2.1  Agreement and Plan of Reorganization between Registrant and Storage
       Properties, Inc. ("SPI") dated as of March 4, 1996 (filed as Appendix A
       to the 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 Certificate of Determination for the Convertible Preferred Stock, Series
       CC.  Filed herewith.

  3.15 Bylaws, as amended.  Filed with Registrant's Registration Statement No.
       33-64971 and incorporated herein by reference.

  3.16 Amendment to Bylaws adopted on May 9, 1996.  Filed herewith.

                                      S-4
<PAGE>
 
  5.1  Opinion on legality.  Filed herewith.

  8.1  Opinion on tax matters.  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.

 23.5  Consent of Heller, Ehrman, White & McAuliffe.  Filed herewith.

 99.1  Proxy card for SPI.  Filed herewith.

 99.2  Cash Election Form.  Filed herewith.

 99.3  Real Estate Appraisal Report by Charles R. Wilson & Associates, Inc.
       dated March 29, 1996 (filed as Appendix B to the Proxy Statement and
       Prospectus).

 99.4  Opinion of Robert A. Stanger & Co., Inc. dated May 15, 1996 (filed as
       Appendix C to the Proxy Statement and Prospectus).

 99.5  Opinion of Heller, Ehrman, White & McAuliffe dated March 18, 1996.
       Filed herewith.
_______________

*  Compensatory benefit plan.

                                      S-5

<PAGE>
 
                                                                    EXHIBIT 3.14

                  CERTIFICATE OF DETERMINATION OF PREFERENCES
                                      OF
                         CONVERTIBLE PREFERRED STOCK,
                                   SERIES CC
                                      OF
                             PUBLIC STORAGE, INC.

             [AS FILED IN THE OFFICE OF THE SECRETARY OF STATE OF 
                    THE STATE OF CALIFORNIA APRIL 4, 1996]

        The undersigned, Harvey Lenkin and Sarah Hass, President and Secretary,
respectively, of Public Storage, Inc., a California corporation, do hereby
certify:

          FIRST:   The Restated Articles of Incorporation of the corporation
authorize the issuance of 50,000,000 shares of stock designated "preferred
shares," issuable from time to time in one or more series, and authorize the
Board of Directors to fix the number of shares constituting any such series, and
to determine or alter the dividend rights, dividend rate, conversion rights,
voting rights, right and terms of redemption (including sinking fund
provisions), the redemption price or prices and the liquidation preference of
any wholly unissued series of such preferred shares, and the number of shares
constituting any such series.

          SECOND:    The Board of Directors of the corporation did duly adopt
the resolutions attached hereto as Exhibit A and incorporated herein by
reference authorizing and providing for the creation of a series of preferred
shares to be known as Convertible Preferred Stock, Series CC, consisting of
58,955 shares, no shares of such series having been issued.

        We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

        IN WITNESS WHEREOF, the undersigned have executed this certificate this
3rd day of April, 1996.
- ---        -----

                                  /s/ HARVEY LENKIN
                                  ----------------------------------- 
                                  Harvey Lenkin
                                  President


                                  /s/ SARAH HASS
                                  -----------------------------------
                                  Sarah Hass
                                  Secretary
<PAGE>
 
                                   EXHIBIT A

                     RESOLUTION OF THE BOARD OF DIRECTORS
                            OF PUBLIC STORAGE, INC.

                           ESTABLISHING A SERIES OF
                    CONVERTIBLE PREFERRED STOCK, SERIES CC


     RESOLVED, that pursuant to the authority conferred upon the Board of
Directors by Article III of the Restated Articles of Incorporation of this
Corporation, there is hereby established a series of the authorized preferred
shares of this Corporation having a par value of $.01 per share, which series
shall be designated "Convertible Preferred Stock, Series CC," and shall consist
of 58,955 Shares (in the aggregate, the "Shares," individually, a "Share"), all
of which shall have the following rights, preferences and privileges:

     (a)  Dividend Rights.
          --------------- 

          (1) Dividends shall be payable in cash on each Share when, as and if
declared by the Board of Directors, out of funds legally available therefor, on
a cumulative basis, for each calendar quarter, commencing with the calendar
quarter ending on June 30, 1996. (Each calendar quarter, commencing with the
calendar quarter ending on June 30, 1996, may be referred to hereinafter as a
"Dividend Period.")

          (2) The full dividend on each Share for each Dividend Period shall be
$32.50. (The full dividend on each Share for the first Dividend Period shall be
the same amount as a full dividend for each subsequent Dividend Period,
notwithstanding that such Share may not have been outstanding for some or all of
the first Dividend Period. The foregoing is subject to the qualification that if
the Company pays, for any Dividend Period, a dividend on any Shares which is
greater than
<PAGE>
 
$32.50 per Share, then the Company will have the right to reduce the amount
which will constitute a full dividend on such Shares for any future Dividend
Period or Dividend Periods, provided that such reduction does not reduce the
cumulative total of all dividends paid on such Shares to less than an amount per
Share equal to $32.50 multiplied by the number of Dividend Periods which have
elapsed.

          (3) The dividend, if any, on the Shares for each Dividend Period shall
be payable on or before the last day of that Dividend Period; provided, that if
any such day shall be a Saturday, Sunday or other day on which banking
institutions are closed (any of the foregoing a "Non-Business Day"), then the
dividend shall be payable on the next succeeding day which is not a Non-Business
Day. The dividend for each Dividend Period shall be paid to the holders of
record of the Shares as they appear on the stock register of the Corporation on
the last day of that Dividend Period (even if such last day is a Non-Business
Day).

          (4) Unless dividends on all outstanding "Senior Shares" (as
hereinafter defined) have been or contemporaneously are paid in full for the
latest dividend period ending contemporaneously with or prior to the end of the
Dividend Period for which a dividend is to be paid on the Shares, and, to the
extent such Senior Shares have cumulative dividend rights, for all prior
dividend periods, no dividend or other distribution shall be paid on the Shares
for such Dividend Period. The Corporation shall not declare or pay or set apart
for payment any dividends for a dividend period on any "Common Shares" (as
hereinafter defined), or any other class or series of shares ranking on a parity
with, or junior to, the Shares as to dividends, unless a full dividend on the
Shares for the latest Dividend Period ending contemporaneously with or prior to
the last day of such Dividend Period, and for all prior Dividend Periods, has
been or contemporaneously is declared and

                                       2
<PAGE>
 
paid, or declared and a sum sufficient for payment thereof is set apart for
payment.  When dividends are not paid in full upon the Shares or on any class or
series of shares ranking on a parity therewith as to dividends, all dividends
declared upon the Shares and any other class or series of shares ranking on a
parity therewith as to dividends shall be declared pro rata so that the amount
of dividends declared per share on the Shares and on such other series or class
of shares shall in all cases bear to each other the same ratio that the
cumulative accrued and unpaid dividends per share on the Shares and on such
other class or series of shares bears to each other.  The foregoing shall not
limit distributions on or in respect of any outstanding shares of stock of the
Corporation which are paid in Common Shares.

          (5) The preference as to dividends held by holders of any Shares shall
terminate, and no further dividends shall be paid on such Shares, for any
Dividend Period ending after the earlier of (i) the Corporation's receipt of
notice of exercise of the conversion right as to those Shares as provided for in
(h) below and (ii) the date of automatic conversion in accordance with (f)
below.

     (b)  Liquidation.
          ----------- 

          (1)  In the event of any voluntary or involuntary liquidation,
dissolution, or winding up of the Corporation,

               (i) The holders of the Shares are not entitled to receive any
liquidation payment in respect of the Shares until the respective liquidation
preferences in respect of all Senior Shares, if any, have been paid in full;

               (ii) If the liquidation amount paid with respect to each Share is
less than the "Share Liquidation Preference" (as hereinafter defined), or if the
liquidation amounts payable with respect to any other shares of the Corporation
ranking as to any liquidation distribution on a

                                       3
<PAGE>
 
parity with the Shares are not paid in full, any participation in the
distribution of the assets of the Corporation by the holders of the Shares
and/or of such other shares will be on a basis which causes the amount paid in
respect of each Share to bear the same proportion to the amount paid in respect
of each such other share as the Share Liquidation Preference bears to the full
liquidation amount to which the holder of such other share would be entitled in
the event of full payment; and

               (iii) Before any distribution of assets is made to holders of
Common Shares or any other class or series of shares ranking junior to the
Shares upon liquidation, there shall be paid to the holder of the Shares a
liquidating distribution on each Share in the amount of the Share Liquidation
Preference.

     After payment of a total liquidation distribution on each Share of the
Share Liquidation Preference, the holders of the Shares shall not be entitled to
any further participation in any distribution of assets by the Corporation, and
their preference as to dividends shall terminate.

          (2) For purposes of liquidation rights, a reorganization (as defined
in Section 181 of the California Corporations Code) or consolidation or merger
of the Corporation with or into any other corporation or corporations or a sale
of all or substantially all of the assets or the corporation shall be deemed not
to be a liquidation, dissolution or winding up of the Corporation.

     (c)  Redemption.
          ---------- 

     Except as herein specifically provided, the Shares are not redeemable.  If
the Board of Directors of the Corporation shall, at any time and in good faith,
be of the opinion that ownership of securities of the Corporation has or may
become concentrated to an extent that may prevent the Corporation from
qualifying as a real estate investment trust under the REIT Provisions of the
Internal Revenue Code, then the Board of Directors shall have the power to
prevent the transfer of

                                       4
<PAGE>
 
and/or to call for redemption of the Shares, if required, in the opinion of the
Board of Directors, to maintain or bring the direct or indirect ownership
thereof into conformity with the requirements of such a real estate investment
trust under the REIT Provisions of the Internal Revenue Code.  The redemption
price to be paid for each Share, if so called for redemption, on the date fixed
for redemption, shall be the Share Liquidation Preference.  From and after the
date fixed for redemption by the Board of Directors, the holders of the Shares
shall cease to be entitled to any distributions, voting rights, and other
benefits with respect to the Shares, other than the right to payment of the
redemption price determined as aforesaid.  "REIT Provisions of the Internal
Revenue Code" shall mean Sections 856 through 860 of the Internal Revenue Code
of 1986, as amended.  In order to exercise the redemption option set forth
above, with respect to the Shares, the Corporation shall give notice of
redemption to the record holders of the Shares at least 10 days prior to such
redemption date, to the addresses of such holders as the same shall appear on
the stock transfer records of the Corporation.  Such notice shall state (i) the
redemption date and (ii) the place or places where the certificates for the
Shares is to be surrendered for payment of the redemption price.

     (d)  Voting Rights.
          ------------- 

          (1) The record owners of the Shares shall be entitled to the same
voting power and rights on a share for share basis as a holder of Common Shares.
Except as required by California law and/or as hereinafter specifically
provided, the holders of the Shares shall have no right or power to vote the
Shares separately as a class.

          (2) The affirmative vote or consent of the holders of at least a
majority of the outstanding Shares, voting separately as a class, will be
required for any amendment to the Articles

                                       5
<PAGE>
 
of Incorporation of the Corporation that will adversely alter or change the
powers, preferences, privileges or rights of the Shares.

          (3) If the Corporation shall fail to pay full cumulative dividends on
the Shares or any other class of its preferred shares for six (6) quarterly
dividend payment periods, whether or not consecutive (a "Dividend Default"), the
holders of all outstanding preferred shares and any other holders of capital
stock of the Corporation ranking on a parity with the Shares as to dividends and
rights to distributions upon liquidation, voting as a single class without
regard to series, will be entitled as a group to elect two Directors until full
cumulative dividends for all past dividend payment periods on the Shares have
been paid or declared and funds therefor set apart for payment. Such right to
vote separately as a class to elect Directors shall, when vested, be subject,
always, to the same provisions for the vesting of such rights to elect Directors
separately as a class in the case of future Dividend Defaults. At any time when
such right to elect Directors separately as a class shall have so vested, the
Corporation may, and upon the written request of the holders of record of not
less than 20% of the total number of the Shares then outstanding shall, call a
special meeting of stockholders for the election of Directors. In the case of
such a written request, such special meeting shall be held within 90 days after
the delivery of such request and, in either case, at the place and upon the
notice provided by law and in the Bylaws of the Corporation, provided that the
Corporation shall not be required to call such a special meeting if such request
is received less than 120 days before the date fixed for the next ensuing Annual
Meeting of Shareholders of the Corporation and the holders of all of the Shares
are afforded the opportunity to elect such Directors (or fill any vacancy) at
such Annual Meeting of Shareholders. Directors elected as aforesaid shall serve
until the next Annual Meeting of Shareholders of the Corporation or until their
respective successors shall

                                       6
<PAGE>
 
be elected and qualified.  If, prior to the end of the term of any Director
elected as aforesaid, a vacancy in the office of such Director shall occur
during the continuance of a Dividend Default by reason of death, resignation, or
disability, such vacancy shall be filled for the unexpired term by the
appointment of a new Director for the unexpired term of such former Director,
such appointment to be made by the remaining Director elected as aforesaid.

     (e)  Conversion.
          ---------- 

     Each Share shall be convertible, at the option of the holder thereof, at
any time prior to March 31, 2000 in the manner hereinafter set forth, into
35.014 Common Shares, subject to (g).

     (f) Mandatory Conversion on March 31, 2000.
         ---------------------------------------

     Each Share which has not been converted into Common Shares pursuant to (e),
prior to March 31, 2000 shall be automatically converted, on and as of March 31,
2000, into 35.014 Common Shares, subject to (g).

     (g) If, at the time of conversion of any Shares pursuant to (e) or (f),
there are any accumulated unpaid dividends on the Shares being converted for any
Dividend Periods ending prior to or contemporaneously with conversion, then the
number of Common Shares to be issued upon such conversion of each such Share
shall be increased by a number computed by dividing the amount of such
accumulated unpaid dividends for each such Share by the average daily "Closing
Price" (as hereinafter defined) per Common Share for all trading days during the
period of 45 consecutive days ending seven days prior to the date of such
conversion.

     (h)  Conversion Procedure.
          -------------------- 

     To exercise a right of conversion under (e) above, a holder of the Shares
to be converted shall deliver to the principal office of the Corporation, at
least five business days, and not more than eight

                                       7
<PAGE>
 
business days, prior to the intended conversion date, written notice of the
exercise of its right to convert such Shares, addressed to the Chief Financial
Officer of the Corporation, specifying the number of Shares to be converted,
requesting conversion, and specifying the date of conversion.  On the conversion
date established pursuant to any of (e) or (f) above, the holder of the Shares
to be converted shall surrender the certificates for such Shares, duly endorsed
or assigned to the Corporation or in blank, at  the principal office of the
Corporation or at a bank or trust company appointed by the Corporation for that
purpose.

     (i)  Adjustments.
          ----------- 

          (1) If, on or before conversion of any Share, there occurs the
consolidation or merger of the Corporation with or into another corporation, or
the sale or conveyance of all or substantially all of the assets of the
Corporation to another corporation, and the Corporation is not the acquiring or
surviving corporation of such consolidation, merger or sale or conveyance of
assets, then, upon conversion, there shall be issued to the holder of such Share
upon conversion, in lieu of Common Shares, shares of common stock, or equivalent
securities, of the acquiring or surviving corporation, computed in the same
manner that the number of Common Shares to be issued upon conversion would have
been computed in the absence of such consolidation, merger or sale or
conveyance.

          (2) If, on or before conversion of any Share, the Corporation shall
subdivide or combine its outstanding Common Shares into a greater or smaller
number of Common Shares, or shall set a record date for the purpose of entitling
the holders of any of its Common Shares to receive a dividend or other
distribution payable in Common Shares, then in each case the number of shares

                                       8
<PAGE>
 
of Common Stock into which such Share shall be converted shall be appropriately
increased or reduced.

     (j)  No Fractional Shares.
          -------------------- 

     No fractions of Common Shares shall be issued upon conversion.  The number
of full Common Shares issuable to any one person or entity upon concurrent
conversion of any Shares shall be computed on the basis of the aggregate number
of Shares being converted and shall be rounded to the nearest whole number.

     (k) Future Issuance of Certain Shares.
         --------------------------------- 

     The future issuance of shares of preferred stock on a parity with, or
junior to, the Shares as to dividends, and/or as to the distribution of assets
upon any voluntary or involuntary liquidation, dissolution or winding up of the
Corporation, and the future issuance of Senior Shares (which shall be senior to
the Shares as to such matters), shall not require the vote or consent of the
holders of the Shares, unless the issuance of such Senior Shares violates any
restrictions contained herein or in the Exchange Agreement.

     (l)  Certain Definitions.
          ------------------- 

          (1) If the Common Shares are listed on one or more exchanges or quoted
on the NASDAQ National Market System, the "Closing Price" for a trading day
shall be the composite closing price for that day as reported in the Wall Street
Journal (Western Edition). If the Common Shares are not so listed or quoted, the
"Closing Price" for a trading day shall be the average of the closing bid and
asked prices for that day as reported by NASDAQ (or if not reported by NASDAQ,
its equivalent) in the Wall Street Journal (Western Edition).

                                       9
<PAGE>
 
          (2) "Common Shares" shall mean shares, outstanding as of the date of
issuance of the Share, or issued thereafter, of the Corporation's Common Stock,
par value $.10 per share (together with any other shares of capital stock into
which such shares shall be reclassified or changed).

          (3) "Senior Shares" shall mean any shares of stock of the Corporation,
exclusive of the Shares and the Common Shares, which (i) are outstanding as of
the date of issuance of the Shares or (ii) are issued subsequent to the date of
issuance of the Shares, and not in violation of the terms of the Exchange
Agreement and these Resolutions, on terms which do not provide that they are on
a parity with, or junior to, the Shares as to dividends and as to the
distribution of assets upon any voluntary or involuntary liquidation,
dissolution or winding up of the Corporation. Senior Shares shall include, but
not be limited to, the following series of preferred stock of the Corporation:

          10% Cumulative Preferred Stock, Series A;

          9.20% Cumulative Preferred Stock, Series B;

          Adjustable Rate Preferred Stock, Series C;

          9.50% Cumulative Preferred Stock, Series D;

          10.00% Cumulative Preferred Stock, Series E;

          9.75% Cumulative Preferred Stock, Series F;

          8.875% Cumulative Preferred Stock, Series G;

          8.45% Cumulative Preferred Stock, Series H.

     The shares of the following series of preferred stock of the Corporation
shall not be "Senior Shares," but shall be on a parity with the Shares as to
dividends and as to the distribution of assets upon any voluntary or involuntary
liquidation, dissolution or winding up of the Corporation:

                                      10
<PAGE>
 
          Convertible Participating Preferred Stock;

          8.25% Convertible Preferred Stock.

          The shares of the Class B Common Stock, par value $.10 per share, of
the Corporation shall not be "Senior Shares," but shall be junior to the Shares
as to dividends and as to the distribution of assets upon any voluntary or
involuntary liquidation, dissolution or winding up of the Corporation.

          (4) "Share Liquidation Preference" for any Share means the sum of (i)
all accumulated unpaid dividends on that Share for prior Dividend Periods plus
(ii) the greater of (A) $1,000.00 or (B) the product of multiplying 35.014 by
the average daily Closing Price per Common Share during the period of 45
consecutive days ending seven days prior to liquidation.

          (5) "Exchange Agreement" means that certain Exchange Agreement and
Assignment between the Corporation and Ameritech Pension Trust by State Street
Bank and Trust Company as Trustee pursuant to which the Shares are to be issued.

                                     -----


                                      11

<PAGE>
 
                                                                    Exhibit 3.16


                  AMENDMENT TO BYLAWS OF PUBLIC STORAGE, INC.
                ADOPTED BY THE BOARD OF DIRECTORS ON MAY 9, 1996



          WHEREAS:  The Board of Directors of this corporation considers it to
     be in the best interests of the corporation to decrease the authorized
     number of directors of the corporation from eight (8) to six (6); and

          WHEREAS:  The corporation's Bylaws permit the Board of Directors to
     designate the number of directors of the corporation provided that such
     number is within the range of not less than five (5) or more than nine (9).

          NOW, THEREFORE, BE IT RESOLVED:  That the second sentence of Section 3
     of Article IV of the corporation's Bylaws is hereby amended to read as
     follows:

          "The exact number of directors shall be six (6) until changed within
          the limits specified above, by a bylaw amending this section 3, duly
          adopted by the board of directors or by the shareholders."

<PAGE>
 
                                                                     EXHIBIT 5.1

                                 DAVID GOLDBERG
                   Senior Vice President and General Counsel
                         701 Western Avenue, Suite 200
                        Glendale, California 91201-2397


                                  May 14, 1996



Public Storage, Inc.
701 Western Avenue, Suite 200
Glendale, California 91201-2397

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

<PAGE>
 
                                                                     Exhibit 8.1



                                  May 14, 1996



Storage Properties, 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") and Storage Properties, Inc., a
California corporation ("SPI"), dated March 4, 1996 (the "Merger Agreement").
Pursuant to the Merger Agreement, SPI 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 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 "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 SPI 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 SPI;

          4.  The Proxy Statement and Prospectus; and
<PAGE>
 
Storage Properties, Inc.
May 14, 1996
Page 2

          5.  Such other instruments and documents related to the formation,
organization and operation of PSI and SPI 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 SPI or PSI has or will represent
equity for tax purposes; no outstanding equity of SPI 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 Proxy Statement and Prospectus fairly
summarizes the federal income tax considerations that are material to a SPI
Shareholder.
<PAGE>
 
Storage Properties, Inc.
May 14, 1996
Page 3

          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 SPI Shareholder who has
provided or will provide services to SPI 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 SPI 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;

          (iv) the basis of any equity interest in SPI acquired by PSI in the
Merger; and
<PAGE>
 
Storage Properties, Inc.
May 14, 1996
Page 4

          (v) the tax consequences of the Merger (including the opinion set
forth above) as applied to specific SPI Shareholders and/or holders of options
or warrants for SPI stock or that may be relevant to particular classes of SPI
Shareholders and/or holders of options or warrants for SPI 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 7.1.8 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 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 registration of common stock and in the related Proxy Statement
and Prospectus of Public Storage, Inc. and Storage Properties, Inc. and to the
incorporation by reference therein of our report dated February 26, 1996 with
respect to the consolidated financial statements and schedules of Public
Storage, Inc. in its Annual Report on Form 10-K, as amended by a Form 10-K/A
(Amendment No. 2) dated May 14, 1996, for the year ended December 31,
1995 filed with the Securities and Exchange Commission, and to the use of our
report dated February 27, 1996, except for Note 8, for which the date is 
March 4, 1996 with respect to the financial statements and schedules of Storage
Properties, Inc. included in the Registration Statement and Proxy Statement and
Prospectus.



                                        ERNST & YOUNG LLP


Los Angeles, California
May 14, 1996

<PAGE>
 
                                                                    Exhibit 23.4


                CONSENT OF CHARLES R. WILSON & ASSOCIATES, INC.

     We hereby consent to the references to our firm under "The Merger -- Real
Estate Portfolio Appraisal by Wilson" in the Proxy Statement and Prospectus
which is a part of this Registration Statement and to the other references to
our firm therein.


                                  /s/ Charles R. Wilson & Associates, Inc.

May 14, 1996
Pasadena, California

<PAGE>
 
                                                                    Exhibit 23.5

                   Consent of Heller Ehrman White & McAuliffe


     We hereby consent to the reference to our firm in "The Merger-Fairness
Opinion from Stanger - Review of Liquidation Analysis" in the Proxy Statement
and Prospectus which is a part of this Registration Statement and to the filing
of our opinion letter dated March 18, 1996 as Exhibit 99.5 to this Registration
Statement.  In giving this consent, we do not thereby admit that we are an
"expert" within the meaning of the Securities Act of 1933, as amended.


                                 \s\ Heller Ehrman White & McAuliffe

May 14, 1996
Los Angeles, California

<PAGE>
 
                                                                    Exhibit 99.1

                            STORAGE PROPERTIES, INC.
                         701 Western Avenue, Suite 200
                        Glendale, California 91201-2397


          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 of Storage Properties, Inc.
("SPI") 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 an Agreement and Plan of
      Reorganization between SPI and Public Storage, Inc. described in the
      accompanying Proxy Statement and Prospectus.

       [_] FOR                    [_]  AGAINST                [_] ABSTAIN

   2. 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 Proxy Statement and Prospectus dated _______________, 1996.


PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD IN THE ENCLOSED ENVELOPE TO
THE FIRST NATIONAL BANK OF BOSTON, SHAREHOLDER SERVICES, MAIL STOP 45-02-53, 150
ROYALL STREET, CANTON, MASSACHUSETTS 02021.


                                          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.

<PAGE>
 
                                                                    Exhibit 99.2

                               CASH ELECTION FORM
        TO ACCOMPANY CERTIFICATES REPRESENTING SHARES OF COMMON STOCK OF
                            STORAGE PROPERTIES, 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
Storage Properties, Inc. ("SPI") Common Stock, par value $.05 per share ("SPI
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 SPI COMMON STOCK COVERED HEREBY (UNLESS DELIVERY IS GUARANTEED IN BOX E
BELOW IN ACCORDANCE WITH INSTRUCTION A), MUST BE RECEIVED BY THE FIRST NATIONAL
BANK OF BOSTON ("BANK OF BOSTON") 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 BANK OF BOSTON SET FORTH
BELOW DO NOT CONSTITUTE VALID DELIVERIES AND BANK OF BOSTON WILL NOT BE
RESPONSIBLE THEREFOR.

     HOLDERS OF SPI COMMON STOCK WHO INTEND TO RECEIVE PUBLIC STORAGE, INC.
("PSI") COMMON STOCK IN THE 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 BANK OF BOSTON WHICH WILL BE
MAILED AFTER THE CONSUMMATION OF THE MERGER.

     This Cash Election Form is to be executed and returned to Bank of Boston at
the following address:

<TABLE>
<CAPTION>
 
        BY MAIL OR FOR                         BY HAND                  BY OVERNIGHT COURIER               FOR INFORMATION
  DUPLICATE COPIES OF MATERIAL
<S>                                  <C>                         <C>                                   <C>
The First National Bank of Boston    BancBoston Trust Company    The First National Bank of Boston     Shareholder Communications
     Shareholder Service                    of New York          Corporate Agency & Reorganization            Corporation
        P.O. Box 1889                       55 Broadway                  150 Royall Street                  (800) 733-8481,
     Mail Stop 45-02-53                      3rd Floor                   Mail Stop 45-02-53                  extension 432
      Boston, MA 02105                  New York, NY 10006                Canton, MA 02021
       (617) 575-3120
</TABLE>

     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 "Merger") of SPI with and into Public Storage, Inc. ("PSI"), pursuant to
the Agreement and Plan of Reorganization dated as of March 4, 1996, between PSI
and SPI (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 SPI Common Stock listed in Box A (Certificate Information) and (b) elects (an
"Election"), as indicated below, upon consummation of the Merger to have each of
the shares of SPI Common Stock represented by the Certificates converted into
the right to receive $7.31 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 Bank of Boston by the Guaranteed
Delivery Deadline), you will receive PSI Common Stock in the Merger.

     The undersigned hereby certifies that this Election covers all of the
shares of SPI 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).  An SPI Shareholder may not make a cash election as to less
than all of the shares of SPI Common Stock beneficially owned by such
shareholder.

     This Election is subject to the terms and conditions set forth in the
Merger Agreement and the Proxy Statement and Prospectus, dated _______________,
1996 (the "Proxy Statement and Prospectus") furnished to shareholders of SPI, in
connection with the Merger, all of which are incorporated herein by reference.
Receipt of the Proxy Statement and Prospectus, including the Merger Agreement
attached as Appendix A thereto, is hereby acknowledged.  Copies of the Proxy
Statement and Prospectus are available from Bank of Boston upon request (see
Instruction G(10)).

     It is understood that because pursuant to the Merger Agreement the number
of shares of SPI Common Stock to be converted into the right to receive cash in
the 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 SPI 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 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 SPI Common Stock currently held by you (unless
delivery is guaranteed in Box E in accordance with Instruction A), to Bank of
Boston 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 SPI COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK IN THE
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 BANK OF BOSTON WHICH WILL BE MAILED AFTER THE
CONSUMMATION OF THE MERGER.

A. TIME IN WHICH TO ELECT

     In order for an Election to be effective, Bank of Boston must receive a
properly completed Cash Election Form, accompanied by all stock Certificates
representing SPI 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 SPI (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 Merger (the "Effective Time") could occur on the same day
approval of the Merger by shareholders of SPI 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 Merger is anticipated to
occur is determined, SPI 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 Bank of Boston no later
than 5:00 p.m., New York City Time, on the third business day after the Election
Deadline (the "Guaranteed Delivery Deadline")).

     IF BANK OF BOSTON 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 BANK OF BOSTON BY THE GUARANTEED DELIVERY DEADLINE), YOU WILL
RECEIVE PSI COMMON STOCK IN THE 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
Merger to have each of the shares of SPI Common Stock covered by this Cash
Election Form converted into the right to receive $7.31 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 Proxy
Statement and Prospectus.  The Merger Agreement is included as Appendix A to the
Proxy Statement and Prospectus.  Copies of the Proxy Statement and Prospectus
may be requested from Bank of Boston 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 Bank of Boston constitutes
acknowledgement of the receipt of the Proxy Statement and Prospectus.  EACH
HOLDER OF SPI COMMON STOCK IS STRONGLY ENCOURAGED TO READ THE PROXY STATEMENT
AND PROSPECTUS IN ITS ENTIRETY AND TO DISCUSS THE CONTENTS THEREOF, THE 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
SPI 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 MERGER" IN THE 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 SPI
Common Stock covered by this Cash Election Form.

D. RECEIPT OF PSI COMMON STOCK

     HOLDERS OF SPI COMMON STOCK WHO INTEND TO RECEIVE PSI COMMON STOCK IN THE
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 BANK OF BOSTON WHICH WILL BE MAILED AFTER THE
CONSUMMATION OF THE 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 Bank of Boston 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 Bank
of Boston by the Guaranteed Delivery Deadline), you will receive PSI Common
Stock in the 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 Bank of Boston prior to the Election Deadline,
identifying the name of the registered holder of the SPI Common Stock subject to
such Election and the serial numbers shown on the Certificates representing such
SPI Common Stock.  Any person or persons who have effectively revoked an
Election may, by a signed and dated written notice

                                       2
<PAGE>
 
to Bank of Boston, request the return of the stock Certificates submitted to
Bank of Boston 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 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 Proxy Statement and Prospectus under the caption "The Merger --
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 SPI 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 SPI 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 SPI 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 Bank of Boston with such documents and/or additional
certifications, if requested, in order to satisfy Bank of Boston that such
Representative holds such shares of SPI 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 SPI Common Stock currently held by you or a
proper Guaranty of Delivery of such stock Certificates pursuant to Instruction
A, to Bank of Boston 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 BANK OF BOSTON.

  (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 SPI 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 SPI, PSI and Bank of
Boston will be under any obligation to notify you or anyone else that Bank of
Boston 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 SPI 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 Bank
of Boston in whole or in part.  PSI or Bank of Boston 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 Bank of
Boston.

  (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 SPI Common Stock, you should contact Bank of Boston, SPI's transfer
agent, at (617) 575-3120.  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, Bank of
Boston 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 SPI 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 Bank of Boston 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 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), Bank of
Boston 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 Bank of Boston.  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 432
(individual holders), or (212) 805-7000 (banks and brokers).  You may also
obtain additional copies of the Cash Election Form and the Proxy Statement and
Prospectus from Bank of Boston 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 Merger becomes effective, Bank of Boston
will make the allocations of cash to be received by holders of SPI Common Stock
or their designees in accordance with the Election and Allocation Procedures.
Bank of Boston 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 SPI 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, Bank of Boston will
forward to you, as soon as practicable after the Merger becomes effective, a
Letter of Transmittal for you to use to send in your stock Certificates for
shares of SPI Common Stock, containing appropriate instructions for surrendering
such Certificates at that time.  After Bank of Boston 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 SPI 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 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.)
 
                                            
Name and Address of Registered 
Holder(s) as Shown on the                            Number of Shares  
Share Records                                        Represented by
(Fill in, if Blank)              Certificate Number  Each Certificate
- ------------------------------   ------------------  ----------------
                                 __________________  ________________
                                 __________________  ________________
                                 __________________  ________________
                                 __________________  ________________
 
                                    Total Shares:
                                                     ================ 
- --------------------------------------------------------------------------------


                        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 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.

<TABLE>
<CAPTION>
<S>                           <C>  
BOX D
- ------------------------------------------------------------------------------------------------------------------------------------

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

 
Department of the Treasury      PART 2 - Check the box if you are not subject to backup withholding because (1) you have 
Internal Revenue Service        not been notified that you are subject to backup withholding as a result of failure to 
                                report all interest or dividends or (2) the Internal Revenue Service has notified you 
                                that you are no longer subject to backup withholding. [_]
                              ------------------------------------------------------------------------------------------------------
Payer's Request for Taxpayer    Certification - Under penalties of perjury, I certify       PART 3 -
 Identification Number (TIN)    that the information provided on this form is true,
                                correct and complete.                                       Awaiting TIN [_] 
 
                                                                                         -------------------------------------------

Signature: __________________________________________________  Date: __________________________________________________________
- -----------------------------------------------------------------------------------------------------------------------------------
 
                                      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 Bank of Boston at the appropriate address set forth above the Certificates for shares of SPI Common Stock
submitted with this Cash Election Form no later than 5:00 p.m., New York City Time, on the third business day after the Election
Deadline (as defined in Instruction A).
 
[_] 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
- ------------------------------------------------------------------------------------------------------------------------------------


                                             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 SPI 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:  __________________________________________________________________________________________________
 
          __________________________________________________________________________________________________
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE>

                                      E-2

<PAGE>
 
                                                                    Exhibit 99.5

                [LETTERHEAD OF HELLER EHRMAN WHITE & McAULIFFE]

                                March 18, 1996

  Special Committee of the Board of Directors
   Mr. Jack D. Steele
   Mr. Vern O. Curtis
  Storage Properties, Inc.
  600 No. Brand Boulevard
  Glendale, California 91221

  Public Storage, Inc.
  600 No. Brand Boulevard
  Glendale, California 91221

       Re:  Merger of Storage Properties, Inc. ("SPI") into Public Storage, Inc.
            ("PSI")

  Ladies and Gentlemen:

       You have requested our opinion concerning the interpretation of certain
  of the termination and fee provisions under the Advisory Agreement dated June
  23, 1989 (the "Advisory Agreement") between SPI and PS Properties Advisors,
  Inc. (the "Advisor") in connection with the merger of SPI into PSI (the
  "Merger").  The defined terms used in the Advisory Agreement have the meanings
  given to those terms in the SPI prospectus dated June 23, 1989 (the
  "Prospectus").  PSI manages its own properties and SPI's retention of the
  Advisor will conclude at the time of the Merger.  Because the Advisor has
  previously merged into PSI, any fee payable to the Advisor in connection with
  the Merger would be paid by a reduction in the shares of PSI that the
  shareholders of SPI would otherwise receive.

       Certain of the officers and directors of PSI are also officers and
  directors of SPI.  PSI and SPI may be considered affiliates of each other.
  Each of PSI and SPI are California corporations.  We assume that the
  transaction will satisfy the "interested person" requirements of California
  Corporations Code (S) 310.  Consistent with that assumption, we understand
  that (i) SPI's board has formed a special committee of its "outside" directors
  to consider this transaction (the "Special Committee"), (ii) the Special
  Committee has received appraisals and favorable fairness opinions from one or
  more qualified experts concerning the Merger, (iii) SPI has imposed as a
  condition to the Merger that the holders of a majority of the shares of SPI
  voting at the shareholders meeting not held by PSI approve the Merger, and
  (iv) any proxy materials received by the SPI shareholders will disclose the
  payment to PSI resulting from the Advisory Agreement.
<PAGE>
 
Storage Properties, Inc.
 Special Committee,
 Board of Directors,
Public Storage, Inc.
March 18, 1996
Page 2


  TERMINATION RIGHTS

       SPI and the Advisor each have the right to terminate the Advisory
  Agreement without breach under (S) 18, upon 60 days' written notice:

       "This Agreement shall continue in force until the fifth anniversary of
       the date of this Agreement[/1/], and thereafter shall be
       automatically extended for successive two-year periods year to year
       unless terminated with or without cause, by a majority of the Board of
       Directors upon 60 days' written notice.  This Agreement may be terminated
       by the Advisor on 60 days written notice."

       This provision does not place any limitations on the right of either
  party to terminate, other than the 60 day notice provision.

  APPLICATION OF FEE PROVISION

       The Advisory Agreement provides two possible formulas for the payment of
  fees upon the conclusion of the Advisor's services at the time of the Merger.
  In the event of the "termination" of the Advisory Agreement under Section 18,
  Section 20 of the Advisory Agreement provides a formula for SPI to purchase
  the Advisor's future interest in payments under the Advisory Fee (the
  "Termination Fee").  We understand and assume that the amount that would be
  payable under this provision would exceed the amount payable as 20% of Cash
  From Sales or Refinancing, as discussed below.  As discussed above, the
  Advisor has the absolute right to trigger the payment of this fee at any time,
  upon 60 days notice.

       Section 11(c) of the Advisory Agreement has an alternative fee provision.
  It provides that after certain thresholds have been met, "the Advisory Fee
  shall equal 20% of Net Cash Flow and 20% of Cash from Sales or Refinancing"
  (the "Sales Fee").  The Prospectus defines "Cash from Sales or Refinancing" as
  follows:

       "... net proceeds to the Company from all sales, exchanges and financings
       of Company properties, less payment of indebtedness relating to such
       properties and adequate cash reserves from such net proceeds for other
       obligations of the Company for which there is no provision (other than
       payment of the Advisory Fee)."

       The Merger should activate the application of the Sales Fee payable with
  respect

- --------------------
/1/ The Advisory Agreement was entered into on June 23, 1989 and the five year
    period therefore expired on June 23, 1994.
<PAGE>
 
Storage Properties, Inc.
 Special Committee,
 Board of Directors,
Public Storage, Inc.
March 18, 1996
Page 3


  to Cash from Sales or Refinancing.  The Merger will not generate any cash.
  The shareholders of SPI will receive stock in PSI.  Although the name of the
  defined term "Cash from Sales or Refinancing" uses the word "cash," the
  definition itself does not use that word and does not require the existence of
  cash.  Instead it refers to "proceeds" of specified events and would apply to
  any consideration received by SPI upon any of the specified events.

       The events specified in the defined term "Cash from Sales or Refinancing"
  do not specifically include a merger.  Nevertheless, the defined term should
  apply to a merger transaction.  The substance of a stock merger is the
  exchange of the assets of the disappearing company for stock in the surviving
  company and the distribution of that stock to the shareholders of the
  disappearing company.  The definition of Cash from Sales or Refinancing
  provides for the payment of this fee to the Advisor upon material financial
  events.  Because the substance of the merger is the same as the substance of
  the specific financial events named in the definition, a court should
  interpret the reference in the definition to an "exchange" or a "sale" to
  include a merger.

       The events specified in the defined term "Cash from Sales or Refinancing"
  do not specifically include a transaction with an affiliate.  Nevertheless,
  the defined term should apply to a transaction with an affiliate, provided
  that the conditions of California Corporations Code (S) 310(a)(1) or
  California Corporations Code (S) 310(a)(2), or both, are satisfied.

  CONCLUSION

       The Advisor has the right to terminate the Advisory Agreement and demand
  the Termination Fee provided for in Section 20 of the Agreement.  The
  Termination Fee would exceed the Sales Fee.  A court should hold that, unless
  PSI triggers the Termination Fee, the Advisor is entitled to the Sales Fee in
  connection with the Merger, taking into account the fact that PSI may be
  considered an affiliate of SPI.

                                Very truly yours,


                                /s/ Heller Ehrman White & McAuliffe


  cc:  Robert A. Stanger & Co., Inc.


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