APARTMENT INVESTMENT & MANAGEMENT CO
424B3, 1999-02-02
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>   1
 
                                                Filed Pursuant to Rule 424(b)(3)
                                                      Registration No. 333-66207
 
                           INSIGNIA PROPERTIES TRUST
                                55 BEATTIE PLACE
                        GREENVILLE, SOUTH CAROLINA 29602
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                        TO BE HELD ON FEBRUARY 26, 1999
      --------------------------------------------------------------------
                     WE ARE NOT ASKING FOR A PROXY AND YOU
                      ARE REQUESTED NOT TO SEND US A PROXY
      --------------------------------------------------------------------
 
To the Shareholders of Insignia Properties Trust:
 
You are hereby notified that a special meeting of shareholders of Insignia
Properties Trust will be held on February 26, 1999, beginning at 11:00 a.m.,
local time, at 55 Beattie Place, 12th Floor, Greenville, South Carolina 29602,
for the purpose of considering and voting upon the following:
 
- - To consider and vote upon a proposal to approve the merger of Insignia
  Properties Trust with Apartment Investment and Management Company, the Second
  Amended and Restated Agreement and Plan of Merger, dated as of January 22,
  1999, by and between Apartment Investment and Management Company and Insignia
  Properties Trust and the transactions contemplated by that agreement.
 
- - Such other matters as may be properly brought before the special meeting, or
  any adjournments or postponements thereof.
 
Only holders of common shares of beneficial interest of Insignia Properties
Trust reflected in its records at the close of business on December 23, 1998,
are entitled to notice of and to vote at the special meeting and any
adjournments or postponements of the special meeting.
 
The attached Information Statement/Prospectus discusses the merger agreement and
other related matters. A copy of the merger agreement is included as Annex A to
the Information Statement/Prospectus. You are encouraged to read the Information
Statement/Prospectus and the documents incorporated therein by reference
carefully and completely.
 
Our principal executive offices are located at 55 Beattie Place, Greenville,
South Carolina 29602. Our telephone number is (864) 239-1300.
 
                                       By Order of the Board of Trustees
 
                                       /s/ JEFFREY P. COHEN
                                       Jeffrey P. Cohen
                                       Secretary
 
Greenville, South Carolina
January 27, 1999
<PAGE>   2
 
                INSIGNIA PROPERTIES TRUST INFORMATION STATEMENT
                             ---------------------
             APARTMENT INVESTMENT AND MANAGEMENT COMPANY PROSPECTUS
                             ---------------------
             PROPOSED MERGER BETWEEN INSIGNIA PROPERTIES TRUST AND
                  APARTMENT INVESTMENT AND MANAGEMENT COMPANY
 
WE ARE NOT ASKING YOU FOR A PROXY AND YOU ARE REQUESTED NOT TO SEND US A PROXY.
 
     Insignia Properties Trust or "IPT" will hold a special meeting of
shareholders on February 26, 1999, beginning at 11:00 a.m., local time, at 55
Beattie Place, 12th Floor, Greenville, South Carolina 29602.

     At the special meeting, shareholders of IPT will be asked to consider and
vote upon a proposal for the acquisition by Apartment Investment and Management
Company or "AIMCO" of all of the shares of IPT not already owned by AIMCO,
through a merger of IPT with and into AIMCO. If the merger is completed prior to
March 1, 1999, each outstanding share of IPT not owned by IPT, AIMCO or any of
their subsidiaries will be converted into the right to receive, at AIMCO's
election, shares of Class A common stock of AIMCO, cash or a combination of
both. If the merger is completed on or after March 1, 1999, each outstanding
share of IPT will be converted into the right to receive only shares of Class A
common stock of AIMCO, except in limited circumstances. You will no longer
receive regular quarterly distributions on your shares of IPT, but instead,
record holders of shares of IPT on the day before the special meeting will be
entitled to a special distribution for the period beginning October 1, 1998 and
ending on the day before the special meeting, which distribution will be paid
fifteen days after the record date. However, if the merger is not completed
before June 1, 1999, the Board of Trustees of IPT may resume the payment of
quarterly distributions, including for the period during which distributions
were not paid.

     On October 1, 1998, AIMCO acquired Insignia Financial Group, Inc. or "IFG",
the former majority shareholder of IPT, through the merger of IFG into AIMCO. As
a result, AIMCO, directly or through its subsidiaries, became the owner of
approximately 51% of the then outstanding shares of IPT. Following that merger,
a former subsidiary of IFG which had been spun-off by IFG in September 1998 as a
publicly held company, changed its name to Insignia Financial Group, Inc., and
is referred to in this Information Statement/Prospectus as "New Insignia."

     The merger, the second amended and restated merger agreement and the
transactions contemplated thereby need to be approved and adopted by the holders
of a majority of the outstanding shares of IPT. AIMCO and its subsidiaries hold
a majority of the outstanding shares of IPT, which will be voted in favor of the
merger. Therefore, approval and adoption of the merger, the second amended and
restated merger agreement and the transactions contemplated thereby are assured.
 
     SEE "RISK FACTORS" BEGINNING ON PAGE 32 FOR A DISCUSSION OF MATERIAL RISK
FACTORS THAT SHOULD BE CONSIDERED BY SHAREHOLDERS OF IPT.
 
     This information statement informs IPT shareholders about the matters to be
approved at the special meeting, is a prospectus of AIMCO and is part of the
Registration Statement on Form S-4 filed by AIMCO with the Securities and
Exchange Commission under the Securities Act of 1933, as amended, in order to
register up to 9.62 million shares of Class A common stock of AIMCO,
approximately 4.9 million of which may be issued in the merger. The Class A
common stock of AIMCO is traded on the New York Stock Exchange under the symbol
"AIV."
 
     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED THE MERGER, THE SECURITIES THAT MAY BE ISSUED IN THE
MERGER OR THE FAIRNESS OR MERITS OF THE MERGER. IN ADDITION, NEITHER THE
SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS
DETERMINED IF THIS INFORMATION STATEMENT/PROSPECTUS IS ACCURATE OR ADEQUATE. ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
     This Information Statement/Prospectus is dated January 27, 1999 and is
first being mailed to IPT shareholders on or about January 28, 1999.
<PAGE>   3
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
QUESTIONS AND ANSWERS ABOUT THE
  MERGER............................    1
SUMMARY.............................    7
  The Companies.....................    7
     Apartment Investment and
       Management Company...........    7
     Insignia Properties Trust......    8
  Background of the Merger..........    8
  The Special Meeting...............    9
  Board of Trustees of IPT..........   10
  Possible Conflicts of Interest of
     IPT Executive Officers and
     Trustees in the Merger.........   10
  Fairness Opinion of Financial
     Advisor........................   12
  Summary of the Merger Agreement...   13
     Effective Time of the Merger...   13
     What Holders of Shares of IPT
       Will Receive in the Merger...   13
     Ownership of AIMCO Following
       the Merger...................   14
     Conditions to the Merger.......   14
     Termination of the Merger
       Agreement....................   14
     Accounting Treatment...........   15
     Regulatory Matters.............   15
     Federal Income Tax
       Consequences.................   15
     No Appraisal Rights............   15
     Stock Exchange Listing.........   15
  Summary Risk Factors..............   16
  Fluctuations in Market Price......   16
  Comparative Per Share Data........   16
  Distributions.....................   18
  Forward-Looking Statements........   19
  Summary Historical Financial
     Information of AIMCO...........   20
  Summary Consolidated and Combined
     Financial Data of IPT..........   24
  Summary Pro Forma Financial and
     Operating Information of
     AIMCO..........................   26
  Summary Pro Forma Financial Data
     of IPT.........................   30
RISK FACTORS........................   32
  Risks Relating to the Merger
     Regardless of Whether You
     Receive Class A Common Stock of
     AIMCO in the Merger............   32
</TABLE>
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
     Possible Conflicts of Interest
       of IPT's Executive Officers
       and Trustees in the Merger...   32
     Consequences to IPT, IPLP and
       You if the Merger is Not
       Completed....................   33
  Risks Relating to the Merger if
     You Receive Class A Common
     Stock of AIMCO in the Merger...   34
     Risks Associated with AIMCO's
       Integration of IPT and IFG...   34
     Market Fluctuations............   35
     Risks of Acquisition and
       Development Activities.......   35
     Litigation Associated with
       Partnership Acquisitions.....   35
     Risks Associated With Debt
       Financing....................   36
     Moody's Revision of AIMCO's
       Outlook of Ratings to
       Negative.....................   36
     Increases in Interest Rates May
       Increase AIMCO's Interest
       Expense......................   37
     Risks of Interest Rate Hedging
       Arrangements.................   37
     Covenant Restrictions May Limit
       AIMCO's Ability to Make
       Payments to Its Investors....   37
     AIMCO Depends on Distributions
       and Other Payments from Its
       Subsidiaries.................   37
     Real Estate Investment Risks...   38
     Possible Environmental
       Liabilities..................   38
     Laws Benefitting Disabled
       Persons May Result in
       Unanticipated Expenses.......   38
     Risks Relating to Regulation of
       Affordable Housing...........   39
     The Loss of Property Management
       Contracts Would Reduce
       AIMCO's Revenues.............   40
     Dependence on Certain Executive
       Officers.....................   40
     Possible Conflicts of Interest;
       Transactions with
       Affiliates...................   40
  Tax Risks.........................   41
  Possible Adverse Consequences of
     Limits on Ownership of
     Shares.........................   42
</TABLE>
 
                                        i
<PAGE>   4
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
  AIMCO's Charter and Maryland Law
     May Limit the Ability of a
     Third Party to Acquire Control
     of AIMCO.......................   43
  Year 2000 Readiness...............   44
INFORMATION CONCERNING THE SPECIAL
  MEETING...........................   46
  Purpose, Time and Place...........   46
  Record Date; Quorum; Vote
     Required.......................   46
  Voting............................   47
  No Appraisal Rights...............   47
SPECIAL FACTORS TO CONSIDER.........   48
  Introduction to the Merger........   48
  Background of the IFG Merger......   48
  Background of the Merger..........   50
  IPT's Reasons for the Merger;
     Recommendation of the IPT
     Board..........................   54
  AIMCO's Reasons for the Merger....   59
  Opinion of Financial Advisor to
     the IPT Board..................   60
  Valuation of IPT..................   62
  Valuation of AIMCO................   64
  Certain Projected Financial
     Information and Forward-Looking
     Statements.....................   66
  Interests of Trustees and
     Management of IPT in the
     Merger.........................   68
  AIMCO's Relationship with IPLP....   69
  Certain Effects of the Merger;
     Plans for IPT After the
     Merger.........................   70
  Federal Income Tax Consequences of
     the Merger.....................   70
  Accounting Treatment..............   72
  No Appraisal Rights...............   73
  Regulatory Matters................   73
  Maryland Prohibition of Business
     Combination Transactions.......   73
  Stock Exchange Listing............   73
  Transaction Costs.................   74
  Restrictions on Resales by
     Affiliates.....................   74
THE MERGER AGREEMENT AND TERMS OF
  THE MERGER........................   75
  The Merger........................   75
  Closing Date; Effective Time......   75
  Charter, Bylaws and Directors and
     Officers.......................   75
  The Closing.......................   75
  Manner and Basis of Converting IPT
     Common Shares..................   75
</TABLE>
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
  Representations and Warranties....   77
  Certain Covenants.................   77
  Conditions to Consummation of
     Merger.........................   82
  Termination of the Merger
     Agreement......................   83
  "Unwind" in the Event of a
     Termination of the Merger
     Agreement......................   84
  Amendment and Waiver..............   85
SELECTED HISTORICAL FINANCIAL
  INFORMATION OF AIMCO..............   86
SELECTED CONSOLIDATED AND COMBINED
  FINANCIAL DATA OF IPT.............   90
PRO FORMA FINANCIAL INFORMATION OF
  AIMCO.............................   92
UNAUDITED PRO FORMA FINANCIAL
  INFORMATION OF INSIGNIA PROPERTIES
  TRUST.............................  136
BUSINESS OF AIMCO...................  142
  Recent Developments...............  142
  Accounting Policies and
     Definitions....................  145
  Recent Contracts..................  146
  Year 2000 Compliance..............  147
  Conflict of Interest Policies.....  150
  Policies with Respect to Other
     Activities.....................  150
CAPITALIZATION OF AIMCO.............  152
BOARD OF DIRECTORS AND OFFICERS OF
  AIMCO.............................  154
PRINCIPAL STOCKHOLDERS OF AIMCO.....  159
BUSINESS OF IPT.....................  161
  General...........................  161
  The IPT Partnerships..............  162
  Business Objectives...............  164
  Acquisition Strategies............  165
  Operating Activities..............  166
  Investment Policies...............  167
  Financing Policies................  167
  Conflict of Interest Policies.....  167
  Policies with Respect to Other
     Activities.....................  168
  Properties........................  169
  Taxes/Depreciation................  171
  Mortgages.........................  173
  Legal Proceedings.................  174
</TABLE>
 
                                       ii
<PAGE>   5
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
IPT FORMATION TRANSACTIONS AND
  CERTAIN RECENT DEVELOPMENTS.......  177
  IPT Formation Transactions........  177
  Certain Recent Developments.......  180
THE IPLP PARTNERSHIP AGREEMENT......  186
  Management........................  186
  Transferability of Interests......  187
  Capital Contributions.............  187
  Redemption Rights.................  188
  Operations........................  189
  Distributions and Allocations.....  189
  Property Management and Contract
     Loss Fee.......................  190
  Put Rights........................  191
  Partnership Administration
     Services.......................  191
  Transfers of Controlling Interests
     in IPT Entities................  192
  Term..............................  193
  Tax Matters Partner...............  193
ACQUISITION AND DISPOSITION SERVICES
  AGREEMENT.........................  193
  Acquisition and Disposition
     Services.......................  193
  Agreements Regarding Certain Real
     Estate Opportunities...........  194
IPLP CREDIT AGREEMENT...............  195
MANAGEMENT'S DISCUSSION AND ANALYSIS
  OF FINANCIAL CONDITION AND RESULTS
  OF OPERATIONS OF IPT AND THE IPT
  PARTNERSHIPS......................  197
  IPT...............................  197
  IPT Partnerships..................  202
BOARD OF TRUSTEES AND EXECUTIVE
  OFFICERS OF IPT...................  207
PRINCIPAL SHAREHOLDERS OF IPT.......  212
DESCRIPTION OF COMMON STOCK OF
  AIMCO.............................  213
  General...........................  213
  Restrictions on Transfer..........  213
  Business Combinations.............  215
  Control Share Acquisitions........  215
  AIMCO Common Stock................  216
DESCRIPTION OF PREFERRED STOCK OF
  AIMCO.............................  217
  General...........................  217
  Class B Preferred Stock...........  217
  Class C Preferred Stock...........  220
</TABLE>
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
  Class D Preferred Stock...........  221
  Class G Preferred Stock...........  222
  Class H Preferred Stock...........  224
  Class J Preferred Stock...........  225
FEDERAL INCOME TAXATION OF AIMCO AND
  AIMCO STOCKHOLDERS................  227
  General...........................  227
  Requirements for Qualification....  229
     Ownership of Partnership
       Interests....................  229
     Income Tests...................  230
     Asset Tests....................  231
     Annual Distribution
       Requirements.................  232
     Distribution of Acquired
       Earnings and Profits.........  232
  Failure to Qualify................  233
  Tax Aspects of AIMCO's Investments
     in Partnerships................  233
     General........................  233
     Entity Classification..........  233
     Tax Allocations with Respect to
       the Properties...............  234
     Sale of the Properties.........  235
  Taxation of Management
     Subsidiaries...................  235
  Taxation of Taxable Domestic
     Stockholders...................  235
     Distributions..................  235
     Dispositions of AIMCO Common
       Stock........................  236
  Taxation of Foreign
     Stockholders...................  236
     Ordinary Dividends.............  236
     Non-Dividend Distributions.....  237
     Capital Gain Dividends.........  237
     Dispositions of AIMCO Common
       Stock........................  237
     Estate Tax.....................  238
  Taxation of Tax-Exempt
     Stockholders...................  238
  Information Reporting Requirements
     and Backup Withholding.........  239
COMPARISON RIGHTS OF SHAREHOLDERS OF
  AIMCO AND IPT.....................  240
  Authorized Shares.................  240
  Board of Trustees/Directors.......  240
  Committees of the Board...........  240
  Cumulative Voting.................  242
  Newly Created Positions or
     Vacancies......................  242
  Removal of Trustees or
     Directors......................  243
</TABLE>
 
                                       iii
<PAGE>   6
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
  Special Meeting...................  243
  Shareholder Action by Written
     Consent........................  243
  Restrictions on Share Transfers...  243
  Preemptive Rights.................  244
  Business Combinations.............  244
  Control Share Acquisitions........  245
  Appraisal Rights..................  246
  Indemnification...................  246
</TABLE>
 
<TABLE>
<CAPTION>
                                      PAGE
                                      ----
<S>                                   <C>
LEGAL MATTERS.......................  248
EXPERTS.............................  248
WHERE YOU CAN FIND MORE
  INFORMATION.......................  250
INDEX TO FINANCIAL STATEMENTS.......  F-1
Second Amended and Restated
  Agreement and Plan of Merger......  A-1
Opinion of Lehman Brothers..........  B-1
</TABLE>
 
                                       iv
<PAGE>   7
 
                             QUESTIONS AND ANSWERS
                                ABOUT THE MERGER
 
Q:   WHAT IS THE MERGER?
 
A:   The merger will combine the operations of IPT's multifamily housing
     business with AIMCO's multifamily housing business to create a more
     significant presence in that industry. Following the merger, IPT will no
     longer exist.
 
Q:   WHY ARE WE PROPOSING THE MERGER?
 
A:   AIMCO became the owner of IFG's majority interest in IPT when IFG merged
     into AIMCO on October 1, 1998. The IFG/AIMCO merger agreement required
     AIMCO to offer to acquire the shares of IPT (not owned by IFG), by merger,
     at a price not less than $13.25 per share in cash. AIMCO expects that the
     merger will enhance operational synergies, eliminate duplication of certain
     expenses and avoid possible future conflicts of interest between AIMCO and
     IPT.
 
Q:   DID THE BOARD OF TRUSTEES OF IPT APPROVE THE MERGER?
 
A:   Yes. On October 1, 1998, after considering various factors, including the
     opinion of Lehman Brothers referred to below, the Board of Trustees of IPT
     (which did not include any trustees appointed by AIMCO) (with one trustee
     not in attendance) unanimously deemed the merger, as originally
     contemplated, advisable and in the best interest of IPT and directed the
     merger, as originally contemplated, be submitted to the IPT shareholders
     for consideration with their recommendation. On January 22, 1999, the Board
     of Trustees of IPT (with the AIMCO nominated trustees abstaining)
     unanimously ratified and reaffirmed its previous findings regarding the
     fairness of the merger, as contemplated by the original merger agreement as
     well as the second amended and restated merger agreement. At such meeting,
     the Board of Trustees of IPT (with the AIMCO nominated trustees
     abstaining), unanimously deemed the merger advisable and in the best
     interest of IPT and directed that the merger, the second amended and
     restated merger agreement and the transactions contemplated by that
     agreement be submitted to the IPT shareholders with its recommendation. The
     trustees, however, may be deemed to have a number of conflicts of interest.
 
Q:   DID A FINANCIAL ADVISOR DELIVER A FAIRNESS OPINION TO THE BOARD OF TRUSTEES
     OF IPT?
 
A:   Yes. Lehman Brothers, IPT's financial advisor, delivered an opinion to the
     Board of Trustees of IPT that, from a financial point of view, the
     consideration to be paid in the merger, as originally contemplated, is fair
     to IPT's shareholders (other than AIMCO, IFG and their subsidiaries).
 
Q:   WHAT IS AIMCO?
 
A:   AIMCO is a self-administered and self-managed REIT that owns, develops,
     expands and manages multifamily apartment properties. As of December 31,
     1998, AIMCO owned or managed 379,363 apartment units in 2,147 properties
     located in 49 states, the District of Columbia and Puerto Rico (including
     approximately 339 properties controlled by IPT). Based on apartment unit
     data compiled as of January 1, 1998 by the National Multi Housing Council,
     AIMCO believes that, upon the merger of IFG into AIMCO, AIMCO became one of
     the largest owners and managers of multifamily apartment properties in the
     United States.
 
                                        1
<PAGE>   8
 
Q:   HOW WILL THE MERGER AFFECT ME?
 
A:   If the merger is consummated, you will no longer be a shareholder of IPT,
     and your shares of IPT will be converted, at AIMCO's election, into shares
     of Class A common stock of AIMCO, cash or a combination of both, as
     described below.
 
Q:   HOW ARE MY SHARES OF IPT VALUED IN THE MERGER?
 
A:   Shares of IPT are valued at $13.28 per share if paid for in shares of Class
     A common stock of AIMCO and $13.25 per share if paid for in cash. These
     amounts will be adjusted downwards if IPT makes distributions in order to
     maintain its qualification as a real estate investment trust or "REIT" for
     income tax purposes and will be paid in the manner described below. The
     cash amount per share ($13.25) will be increased slightly to include
     interest, depending on when the merger is completed.
 
Q:   WHAT WILL I RECEIVE IN THE MERGER?
 
A:   The form and per-share amount of consideration to be received by IPT
     shareholders in the merger will depend upon three factors:
 
     -The first factor is when the merger is completed. If the merger is
      completed prior to March 1, 1999, AIMCO can elect whether it wants to pay
      the merger consideration in Class A common stock, cash or a combination of
      both. AIMCO's determination as to whether part or all of the merger
      consideration will be paid in cash will be based upon market conditions at
      the time of election. Among the factors to be considered are AIMCO's best
      estimate of what the market valuation of shares of Class A common stock of
      AIMCO might be at the closing, the alternative uses for AIMCO's cash
      (including, but not limited to, investments in new multifamily residential
      properties and purchasing limited partnership interests in limited
      partnerships that AIMCO manages or controls) and the availability and cost
      of financing. After February 28, 1999, AIMCO must use stock to complete
      the merger. IPT will issue a press release at least 12-NYSE trading days
      before the special meeting to announce the percentage of the merger
      consideration which will be paid in cash.
 
     -If Class A common stock of AIMCO is used as part or all of the merger
      consideration, the price at which Class A common stock of AIMCO trades
      during a period before the time of the merger will also affect the number
      of shares you will receive in the merger. This trading price affects the
      "AIMCO Exchange Value," which depends on the date the merger is completed.
      The AIMCO Exchange Value will be the lower of $36.8781, which was the
      average sales price of Class A common stock of AIMCO on the NYSE during
      the last 10-trading days of 1998, or the average sales price of Class A
      common stock of AIMCO on the NYSE for the 10-trading days before the
      special meeting.
 
     -The third factor is whether or not IPT must make any extraordinary
      distributions in order to maintain its qualification as a REIT for Federal
      income tax purposes. Any distributions will reduce the per share amount of
      consideration received in the merger.
 
                                        2
<PAGE>   9
 
     Illustrative Example:
 
     For each of these illustrative examples, please assume the following:
 
        1. the AIMCO Exchange Value was $36.8781;
 
        2. no extraordinary distributions were paid on shares of IPT; and
 
        3. the merger was completed February 15, 1999.
 
     If AIMCO elected to pay 100% of the merger consideration in shares of Class
     A common stock of AIMCO, then each share of IPT that you own immediately
     prior to the effective time of the merger would be converted into the right
     to receive:
 
<TABLE>
            <C>       <S>
             $13.28
            --------  = 0.3601 shares of Class A common stock of AIMCO
            $36.8781
</TABLE>
 
     If AIMCO elected to pay 100% of the merger consideration in cash, then each
     share of IPT that you own immediately prior to the effective time of the
     merger would be converted into the right to receive:
 
             $13.25 + ($0.0036)(46) = $13.4156 in cash.
 
     46 days elapse from January 1, 1999 to February 14, 1999 and the second
     amended and restated merger agreement provides for a daily increase factor
     of $0.0036.
 
     If AIMCO elected to pay 50% of the merger consideration in shares of Class
     A common stock of AIMCO and 50% of the merger consideration in cash, then
     each share of IPT that you own immediately prior to the effective time of
     the merger would be converted into the right to receive:
 
<TABLE>
           <S>    <C>       <C>
                   $13.28
           50% X  --------  = 0.1801 shares of Class A common stock of AIMCO
                  $36.8781
</TABLE>
 
                                      AND
 
        50% X ($13.25 + ($0.0036)(46)) = $6.7078 in cash.
 
     Precise Method of Calculation:
 
     The precise calculation of the form and amount of the merger consideration
     is complex. As long as the merger is completed prior to March 1, 1999, the
     consideration you will receive for each share of IPT will be:
 
        - shares of Class A common stock of AIMCO equal to (a) the stock
          percentage elected by AIMCO multiplied by (b) the quotient of (i) the
          total of (A) $13.28 minus (B) any per share extraordinary
          distributions made on shares of IPT to maintain its qualification as a
          REIT for income tax purposes divided by (ii) the AIMCO Exchange Value;
          plus
 
        - cash in the amount of (a) the cash percentage elected by AIMCO
          multiplied by (b) the total of (i) $13.25 minus (ii) any per share
          extraordinary distributions made on shares of IPT to maintain its
          qualification as a REIT for income tax purposes plus (iii) cash equal
          to (A) $0.0036 multiplied by (B) the number of days from and including
          January 1, 1999 through and including the day before completion of the
          merger.
 
                                        3
<PAGE>   10
 
     If the merger is completed on or after March 1, 1999, the stock percentage
     will be 100% and no cash will be paid as merger consideration, except in
     limited circumstances.
 
     The closing prices for Class A common stock of AIMCO on the NYSE and shares
     of IPT on the American Stock Exchange on January 25, 1999 were $38 1/8 per
     share and $13 1/16 per share, respectively.
 
Q:   WILL I STILL RECEIVE REGULAR QUARTERLY DISTRIBUTIONS ON MY SHARES OF IPT?
 
A:   No. You will no longer receive regular quarterly distributions on your
     shares of IPT, but instead, record holders of shares of IPT on the day
     before the special meeting will be entitled to a distribution for the
     period beginning October 1, 1998 and ending on the day before the special
     meeting, which distribution will be paid fifteen days after the record
     date. However, if the merger is not completed before June 1, 1999, the
     Board of Trustees of IPT may resume the payment of quarterly distributions,
     including for the period during which distributions were not paid.
 
Q:   HOW CAN YOU FIND OUT THE CURRENT AIMCO EXCHANGE VALUE?
 
A:   You may call toll free 1-877-249-6580 to obtain the then current AIMCO
     Reference Price, which will be based on the most recent 10-trading day
     period (remember this may not be the actual 10-trading day period which
     will be used to determine the AIMCO Reference Price.) The AIMCO Exchange
     Value will be the lesser of the AIMCO Reference Price and $36.8781, the
     average sales price of Class A common stock of AIMCO for the last 10
     NYSE-trading days of 1998.
 
Q:   ARE THERE ANY RISKS ASSOCIATED WITH THE MERGER?
 
A:   If you receive Class A common stock of AIMCO in the merger, you should
     consider carefully certain risks relating to the merger. For instance:
 
          - AIMCO has significant amounts of debt outstanding, certain of which
          bears interest at variable rates and imposes significant restrictions
          on AIMCO;
 
          - AIMCO may not be able to combine the businesses of AIMCO and IPT
          successfully and may not realize the benefits anticipated from the
          merger;
 
          - AIMCO and IPT are subject to various risks associated with
          investments in and management of real estate.
 
Q:   WHEN WILL THE MERGER BE COMPLETED?
 
A:   We plan to complete the merger on the day of the special meeting, assuming
     all conditions to the merger are met or waived. We currently anticipate
     completing the merger in February 1999.
 
Q:   WHAT DO I NEED TO DO NOW?
 
A:   Nothing. We are not asking for a proxy, and you are requested not to send
     us a proxy. The shares of IPT held by AIMCO (approximately 51% of those
     outstanding as of the record date) will be voted in favor of the merger,
     the amended and restated merger agreement and the transactions contemplated
     thereby. Accordingly, approval is assured. However, you may attend the
     special meeting and vote your shares of IPT or grant a proxy with respect
     to your shares of IPT, if you wish. Although AIMCO Properties, L.P., a
     subsidiary of AIMCO, owns limited partnership units in Insignia Properties,
     L.P., a subsidiary of IPT, which could be converted into shares of IPT,
 
                                        4
<PAGE>   11
 
     AIMCO currently has no plans to cause AIMCO Properties, L.P. to request
     such a conversion.
 
Q:   IF MY SHARES OF IPT ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY BROKER
     VOTE THEM FOR ME?
 
A:   No. If you hold your shares of IPT in the name of a broker or other
     nominee, and you wish either to attend the special meeting and vote your
     shares of IPT or grant a proxy with respect to your shares of IPT, you will
     need to obtain a letter from the broker or nominee confirming your
     ownership of shares of IPT and bring it with you to the special meeting or
     provide it with the proxy.
 
Q:   SHOULD I SEND IN MY SHARE CERTIFICATES NOW?
 
A:   No. After the merger is completed, AIMCO will send you written instructions
     for sending in your share certificates and receiving payment for your
     shares of IPT.
 
Q:   WHAT REMEDY DO I HAVE IF I DO NOT VOTE FOR THE MERGER AND THE MERGER
     PROCEEDS ANYWAY?
 
A:   Under Maryland law, you will not be entitled to any objecting shareholders'
     rights to fair value in connection with the merger.
 
Q:   WILL I RECOGNIZE TAXABLE GAIN OR LOSS ON THE MERGER?
 
A:   If AIMCO pays part or all of the merger consideration in shares of Class A
     common stock of AIMCO, you will not recognize taxable gain or loss on the
     receipt of Class A common stock of AIMCO in exchange for your shares of
     IPT. If AIMCO pays cash as consideration in the merger, you will recognize
     taxable gain (but not loss) in an amount equal to the lesser of the cash
     received or the amount by which the cash and the fair market value of the
     Class A common stock of AIMCO you receive in the merger exceeds your
     adjusted tax basis in your shares of IPT. If AIMCO elects to pay the merger
     consideration solely in cash, you will recognize taxable gain or loss in an
     amount by which the cash you receive in the merger exceeds or is less than
     your adjusted tax basis in your shares of IPT.
 
     TAX MATTERS ARE COMPLICATED AND THE TAX CONSEQUENCES OF THE MERGER TO YOU
     DEPENDS ON THE FACTS OF YOUR INDIVIDUAL CIRCUMSTANCES. YOU ARE URGED TO
     REVIEW THE DISCUSSION IN THIS DOCUMENT UNDER "SPECIAL FACTORS TO
     CONSIDER -- FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER" AND TO CONSULT
     YOUR TAX ADVISOR WITH REGARD TO SPECIFIC TAX CONSEQUENCES OF THE MERGER TO
     YOU.
 
Q:   WHAT OTHER MATTERS WILL BE VOTED ON AT THE SPECIAL MEETING?
 
A:   None. IPT's bylaws prohibit any other matters from being voted on at the
     special meeting, other than adjournment or postponement of the special
     meeting.
 
Q:   WHAT WILL HAPPEN IF THE MERGER IS NOT COMPLETED?
 
A:   If the merger is not completed, AIMCO would continue to control the
     majority of the outstanding shares of IPT but will lose control of the
     Board of Trustees of IPT for up to a two-year period. Transactions
     involving AIMCO and IPT (or entities controlled by IPT) that occurred
     before the termination of the merger agreement would be unwound.
 
                                        5
<PAGE>   12
 
Q:   WHO CAN HELP ANSWER MY QUESTIONS?
 
A:   If you have more questions about the merger, you should contact:
 
                           Insignia Properties Trust
                                55 Beattie Place
                        Greenville, South Carolina 29602
                            Attention: Leeann Morein
                            Telephone: 877-249-6580
 
                                        6
<PAGE>   13
 
                                    SUMMARY
 
     Because this is a summary, it does not contain all of the information that
may be important to you. To better understand the merger, and for a more
complete description of the legal terms of the merger, you should carefully read
this entire Information Statement/ Prospectus and the documents to which we have
referred you. See "Where You Can Find More Information" on page 251. You should
not place undue reliance on forward looking statements in this document or the
documents to which we have referred you. See "Forward Looking Statements" at
page 19.
 
THE COMPANIES
 
APARTMENT INVESTMENT AND MANAGEMENT COMPANY
1873 South Bellaire Street, 17th Floor
Denver, Colorado 80222-4348
(303) 757-8101
 
     AIMCO is a Maryland corporation formed on January 10, 1994. AIMCO is a
self-administered and self-managed REIT, which owns, buys, develops, expands and
manages multifamily apartment properties. As of December 31, 1998, AIMCO owned
or managed 379,363 apartment units in 2,147 properties located in 49 states, the
District of Columbia and Puerto Rico (including approximately 339 properties
controlled by IPT). Based on apartment unit data compiled as of January 1, 1998
by the National Multi Housing Council, AIMCO believes that, as of December 31,
1998, it is one of the largest owners and managers of multifamily apartment
properties in the United States. As of December 31, 1998, AIMCO:
 
        - owned or controlled 63,268 units in 243 apartment properties;
 
        - held an equity interest in 170,061 units in 901 apartment properties;
          and
 
        - managed 146,034 units in 1,003 apartment properties for third party
          owners and affiliates.
 
     AIMCO conducts substantially all of its operations through AIMCO
Properties, L.P., AIMCO's operating partnership. AIMCO's wholly owned
subsidiary, AIMCO-GP, Inc., is the sole general partner of AIMCO Properties,
L.P. Through AIMCO-GP and another of AIMCO's wholly owned subsidiaries, as of
December 31, 1998, AIMCO owned approximately an 83% interest in AIMCO
Properties, L.P. AIMCO manages apartment properties for third parties and
affiliates through unconsolidated subsidiaries that AIMCO refers to as the
"management companies."
 
     Generally, when we refer to AIMCO in this Information Statement/Prospectus,
we are referring to AIMCO, AIMCO Properties, L.P., the management companies and
their respective subsidiaries.
                                        7
<PAGE>   14
 
INSIGNIA PROPERTIES TRUST
55 Beattie Place
Greenville, South Carolina 29602
(864) 239-1300
 
     IPT is a Maryland real estate investment trust which primarily acquires and
owns interests in multifamily residential properties. IPT was formed in May 1996
and has been organized and operates in a manner that qualifies it to be taxed as
a REIT.
 
     As of October 1, 1998, IPT controlled 121 real estate limited partnerships
and owned ten real estate properties. IPT or one of its subsidiaries owned a
controlling interest in each entity that comprised or controlled the managing
general partner of each such controlled limited partnership. Insignia
Properties, L.P., the operating partnership of IPT, and its subsidiaries owned
the limited partner interests in such controlled limited partnerships. As of
October 1, 1998, such controlled limited partnerships owned a total of
approximately 339 properties containing approximately 70,000 residential
apartment units and approximately 5.9 million square feet of commercial space.
Partnerships in which IPT held a material interest (the "IPT Partnerships")
owned a total of approximately 197 properties containing approximately 48,000
residential apartment units and approximately 3.0 million square feet of
commercial space.
 
     On September 17, 1998, IPT acquired by merger Angeles Mortgage Investment
Trust, which made secured and unsecured intermediate-term real estate loans. On
September 17, 1998, Angeles Mortgage Investment Trust had 19 loans outstanding
with an aggregate principal balance of approximately $21.1 million. As a result
of that merger, shares of IPT were listed on the American Stock Exchange.
 
     Generally, when we refer to IPT in this Information Statement/Prospectus,
we are referring to IPT, Insignia Properties, L.P. and subsidiaries of these
entities.
 
BACKGROUND OF THE MERGER
 
     On March 17, 1998, IFG and AIMCO announced that they had entered into a
merger agreement pursuant to which IFG would merge with and into AIMCO. In
connection with the merger with IFG, AIMCO agreed to propose to acquire by
merger the shares of IPT not owned by IFG at a price not less than $13.25 in
cash per share of IPT.
 
     In order to facilitate IFG's merger with AIMCO, on September 21, 1998, IFG
distributed all of the outstanding common stock of New Insignia to stockholders
of record of shares of Class A common stock of IFG on September 15, 1998. New
Insignia specializes in international commercial real estate services,
single-family home brokerage and mortgage origination, condominium and
cooperative apartment management, equity co-investment and other services, which
are businesses that AIMCO did not want to acquire, and IFG did not want to sell.
 
     During September 1998, IPT and AIMCO began negotiating a merger agreement
and other documents, including amendments to IPT's bylaws. On October 1, 1998, a
special meeting of the Board of Trustees of IPT (which did not include any
trustees nominated by AIMCO) was attended by all but one trustee. At such
meeting, Lehman Brothers delivered a presentation on the fairness of the merger,
as originally contemplated, and rendered its written opinion regarding the
fairness, from a financial point of view, of the
                                        8
<PAGE>   15
 
consideration to be received by the IPT shareholders (other than AIMCO, IFG and
their subsidiaries) in the merger, as originally contemplated, as described in a
draft merger agreement. In addition, at such meeting, the trustees approved,
among other things: (1) the original merger agreement, (2) the increase in the
number of IPT trustees to eleven, (3) the resignation of two trustees of IPT,
(4) amendments to IPT's bylaws that allocated certain powers to the five
remaining trustees of IPT (or successors chosen by them) and (5) the election of
six new trustees nominated by AIMCO (all of whom are directors and/or executive
officers of AIMCO).
 
     On October 1, 1998, IFG and AIMCO consummated their merger. On October 2,
1998, IPT and AIMCO executed the original merger agreement.
 
     Following the execution of the original merger agreement, Insignia
Properties, L.P. and AIMCO Properties, L.P. entered into an agreement pursuant
to which Insignia Properties, L.P. transferred the economic rights to a
substantial portion of its assets to AIMCO Properties, L.P., and AIMCO
Properties, L.P. assumed all of the obligations of Insignia Properties, L.P.
related to such assets in exchange for approximately 10.2 million units of
limited partnership interest in AIMCO Properties, L.P. This exchange was
required by the IFG/AIMCO merger agreement and completed to avoid potential
adverse tax consequences to AIMCO.
 
     In addition, on October 16, 1998, Insignia Properties, L.P. provided
approximately $17.1 million to AIMCO Properties, L.P. to fund subsidiary limited
partnerships formed to acquire seven multifamily residential properties from an
unaffiliated third party. In consideration for such amount, AIMCO Properties,
L.P. assigned all of the economic rights to its limited partnership interests in
such subsidiaries to Insignia Properties, L.P. See "Special Factors to
Consider -- Background of the Merger."
 
     In the interest of clarifying certain ambiguities and inconsistencies in
the original merger agreement and to change the structure of the merger to the
merger of a subsidiary of AIMCO into IPT instead of a merger of IPT into AIMCO,
on December 7, 1998, the parties amended and restated the original merger
agreement. Due to the proposal of new tax regulations, AIMCO and IPT elected to
change the structure of the merger back to a merger of IPT into AIMCO, and the
parties executed a second amended and restated merger agreement on January 22,
1999. The second amended and restated merger agreement, which we refer to as the
"Merger Agreement," did not materially alter the rights or interests of the IPT
shareholders and was unanimously approved by the IPT Board of Trustees (with the
AIMCO nominated trustees abstaining).
 
THE SPECIAL MEETING
 
     The special meeting of IPT shareholders will be held on February 26, 1999,
beginning at 11:00 a.m., local time, at the offices of IPT, 55 Beattie Place,
12th Floor, Greenville, South Carolina.
 
     At the special meeting, as it may be adjourned or postponed, we will ask
you to approve the merger, the Merger Agreement and the transactions
contemplated by the Merger Agreement. We will not transact any other business at
the special meeting.
                                        9
<PAGE>   16
 
  Record Date
 
     If you owned shares of IPT as of the close of business on December 23,
1998, you are entitled to vote on the merger. On December 23, 1998, there were
23,484,538 shares of IPT outstanding, of which approximately 56.5% were
beneficially owned by AIMCO, subsidiaries of AIMCO and trustees and executive
officers of IPT. You will be entitled to one vote at the special meeting for
each share of IPT you owned on December 23, 1998.
 
  Required Vote
 
     In order for the merger to occur, the holders of a majority of the
outstanding shares of IPT must vote in favor of the merger. All of the shares of
IPT owned by AIMCO will be voted in favor of the merger, the Merger Agreement
and the transactions contemplated by that agreement. THEREFORE, APPROVAL OF THE
MERGER, THE MERGER AGREEMENT AND THE TRANSACTIONS CONTEMPLATED BY THAT AGREEMENT
ARE ASSURED.
 
BOARD OF TRUSTEES OF IPT
 
     On October 1, 1998, a special meeting of the Board of Trustees of IPT
(which did not include any trustees nominated by AIMCO) was attended by all but
one trustee. At that meeting, the Board of Trustees of IPT unanimously deemed
the merger, as originally contemplated, advisable and in the best interest of
IPT and directed the merger, as originally contemplated, be submitted to the IPT
shareholders for consideration with their recommendation.
 
     On December 7, 1998, at a special meeting of the Board of Trustees of IPT,
the Board of Trustees of IPT (with the trustees nominated by AIMCO abstaining),
unanimously ratified and reaffirmed its previous findings regarding the fairness
of the merger, as contemplated by the original merger agreement, as modified by
the amended and restated merger agreement. At such meeting, the Board of
Trustees of IPT (with the trustees nominated by AIMCO abstaining) unanimously
deemed the merger advisable and in the best interest of IPT and directed that
the merger, the amended and restated merger agreement and the transactions
contemplated thereby be submitted to the IPT shareholders with its
recommendation.
 
     On January 22, 1999, at a special meeting, the Board of Trustees of IPT
(with the trustees nominated by AIMCO abstaining), unanimously ratified and
reaffirmed its previous findings regarding the fairness of the merger, as
contemplated by the original merger agreement as well as the Merger Agreement.
At such meeting, the Board of Trustees of IPT (with the trustees nominated by
AIMCO abstaining) unanimously deemed the merger advisable and in the best
interest of IPT and directed that the merger, the Merger Agreement and the
transactions contemplated thereby be submitted to the IPT shareholders for
consideration with its recommendation.
 
POSSIBLE CONFLICTS OF INTEREST OF IPT EXECUTIVE OFFICERS AND TRUSTEES IN THE
MERGER
 
     In considering the recommendation of the Board of Trustees of IPT, you
should be aware that executive officers and trustees of IPT who negotiated and
approved the original merger agreement, the amended and restated merger
agreement, the Merger Agreement
                                       10
<PAGE>   17
 
and the IFG/AIMCO merger agreement dated as of May 26, 1998 may have interests
that differ from the interests of IPT shareholders generally. James A. Aston,
Andrew L. Farkas, Frank M. Garrison and Ronald Uretta were senior executives of
IFG at the time the IFG/AIMCO merger agreement was executed. They were also
members of the Board of Trustees of IPT at the time the original merger
agreement was executed and all but Mr. Uretta were members of the Board of
Trustees of IPT at the time the amended and restated merger agreement and the
Merger Agreement were each executed. Messrs. Aston, Farkas and Garrison will
continue to be trustees of IPT until the earlier of the completion of the merger
or two years after termination of the Merger Agreement.
 
     In connection with the merger between IFG and AIMCO and the spinoff of
shares of New Insignia, the following transactions occurred:
 
- - IFG retired vested and unvested stock options and warrants held by each of
  Messrs. Aston, Farkas, Garrison and Uretta at a price equal to the difference
  between the exercise price of such option or warrant and $25 per share. IFG
  paid an aggregate of approximately $20.8 million to these individuals to
  retire all options and warrants held by them; and
 
- - Each of Messrs. Aston, Farkas, Garrison and Uretta executed employment
  agreements with New Insignia. Under these employment agreements, as a result
  of the merger between IFG and AIMCO, they received an aggregate payment of
  approximately $11.5 million, which included lump sum payments and bonus
  payments equal to the pro-rata portion, calculated from January 1, 1998
  through October 1, 1998, of the bonuses paid to such individuals in 1997; and
 
- - Upon completion of the merger between IFG and AIMCO, the existing employment
  agreements between IFG and each of Messrs. Aston, Farkas, Garrison and Uretta
  were converted into consulting and non-competition agreements, and were
  assumed by AIMCO, with terms similar to the terms of the prior employment
  agreements. The aggregate present value of the payments under such consulting
  agreements was approximately $4.9 million as of August 10, 1998. In connection
  with Mr. Farkas' consulting agreement with AIMCO, AIMCO agreed to make all
  payments under the lease for Mr. Farkas' office in New York, New York through
  October 31, 1999. Mr. Farkas has exclusive use of the office during such time;
  and
 
- - Loans made by IFG to each of Messrs. Aston, Farkas, Garrison and Uretta in the
  aggregate principal amount of $3 million with an interest rate of 6.5% per
  annum will be forgiven, over a five-year period beginning January 1, 1998, in
  consideration for covenants made by these individuals in their consulting and
  non-competition agreements assumed by AIMCO in the merger between IFG and
  AIMCO; and
 
- - Mr. Farkas, IFG, a trust for Mr. Farkas' children and its trustees entered
  into an indemnification agreement. AIMCO (as successor to IFG) has agreed to
  indemnify Mr. Farkas, the trust and the trustees thereof for all losses that
  they may incur from third party claims or derivative actions that may arise
  out of the execution, performance or failure to perform certain agreements
  entered into by them in connection with the merger between IFG and AIMCO; and
 
- - Messrs. Aston, Farkas, Garrison and Uretta, as stockholders of IFG, received
  an aggregate of approximately 775,500 shares (including approximately 68,800
  shares which are subject to vesting restrictions) of Class E Cumulative
  Convertible Preferred Stock of AIMCO upon completion of the merger between IFG
  and AIMCO. On
                                       11
<PAGE>   18
 
  January 15, 1999, these shares were converted into an equal number of shares
  of Class A common stock of AIMCO following the payment to the holders of Class
  E Preferred Stock of a special one-time dividend of approximately $4.3
  million.
 
     Following the execution of the original merger agreement between IPT and
AIMCO, the following transactions occurred:
 
- - An aggregate of 20,000 restricted shares of IPT granted to two former
  executive officers of IPT became vested pursuant to retention agreements
  entered into between such officers and IPT, and IPT paid an aggregate of
  $81,250 to retire options to purchase an aggregate of 25,000 shares of IPT
  held by the same two former senior executive officers; and
 
- - IPT entered into consulting agreements with each of Messrs. Aston, Farkas,
  Garrison and Uretta, pursuant to which these individuals have become
  consultants to IPT for a fee of $1,000 per month until February 2003.
 
     As of January 1, 1999, Messrs. Aston, Farkas, Garrison, Herrmann, Eckstein
(each current trustees of IPT) and Uretta (a former trustee of IPT) owned an
aggregate of 1,312,260 shares of IPT, of which 369,489 were unvested restricted
shares of IPT. Upon completion of the merger, the restricted shares owned by
Messrs. Aston, Farkas, Garrison and Uretta which remain unvested will convert
into the number of restricted shares of Class A common stock of AIMCO equal to
$13.28 divided by the AIMCO Exchange Value, regardless of AIMCO's election of
the form of consideration paid in the merger. The terms and vesting of the
restricted shares will not be affected by the merger. In connection with the
shareholder meeting, the restricted shares owned by Messrs. Herrmann and
Eckstein will vest and be treated like all other outstanding shares of IPT.
 
FAIRNESS OPINION OF FINANCIAL ADVISOR
 
     Prior to approving the original merger agreement and the merger
contemplated thereby, the Board of Trustees of IPT received an opinion from its
financial advisor, Lehman Brothers on October 1, 1998, that, from a financial
point of view, the consideration to be paid in the merger, as originally
contemplated, is fair to the IPT shareholders (other than AIMCO, IFG and their
subsidiaries). This opinion is included at the back of this Information
Statement/Prospectus as Annex B. We encourage you to read this opinion.
 
     As compensation for its services in connection with the merger and the
rendering of its fairness opinion, IPT paid Lehman Brothers a fee of $750,000
plus expenses.
 
     Lehman Brothers also rendered opinions to IFG and IPT on March 17, 1998 in
connection with the merger between IFG and AIMCO. As compensation for its
services in connection with the merger between IFG and AIMCO, IFG paid Lehman
Brothers fees of approximately $4.6 million. IFG and IPT have agreed to
indemnify Lehman Brothers and related persons against certain liabilities in
connection with its engagement, including certain liabilities under Federal
securities laws.
 
     Lehman Brothers currently is a lender to IPT under a $50 million credit
facility and to New Insignia under a $185 million credit facility. On October 1,
1998, AIMCO and an affiliate of Lehman Brothers signed a $300 million unsecured
one-year term loan established in connection with the merger between IFG and
AIMCO. Lehman Brothers
                                       12
<PAGE>   19
 
also was a lender under a $300 million credit facility with IFG, which was
repaid at the time of the merger between IFG and AIMCO with the proceeds of the
loan to AIMCO.
 
     At the times Lehman Brothers rendered its opinions to IFG and IPT, Lehman
Brothers and an officer of Lehman Brothers owned an aggregate of 510,000 shares
of IPT.
 
SUMMARY OF THE MERGER AGREEMENT
 
     The Merger Agreement is included at the back of this Information Statement/
Prospectus as Annex A. We encourage you to read the Merger Agreement as it is
the legal document that governs the merger.
 
  Effective Time of the Merger
 
     The merger will be effective when the articles of merger are accepted for
record by the State Department of Assessments and Taxation of Maryland. We
expect that the merger will be completed on the day of the special meeting,
assuming all conditions to the merger have been satisfied or waived.
 
  What Holders of Shares of IPT Will Receive in the Merger
 
     The precise calculation of the form and amount of merger consideration is
complex. As of the effective time of the merger, each share of IPT outstanding
immediately prior to the effective time and is not held by AIMCO, IPT or any of
their subsidiaries or which are not restricted shares of IPT, will be converted
into the right to receive, at AIMCO's election, shares of Class A common stock
of AIMCO, cash or a combination of both. AIMCO's determination of whether part
or all of the merger consideration will be paid in cash will be based upon
market conditions at the time of election. Among the factors to be considered
are AIMCO's best estimate of what the market valuation of shares of Class A
common stock of AIMCO might be at the closing, the alternative uses for AIMCO's
cash (including, but not limited to, investments in new multifamily residential
properties and purchasing limited partnership interests in limited partnerships
that AIMCO manages or controls) and the availability and cost of financing.
 
     At least 12-NYSE trading days before the special meeting, AIMCO will notify
IPT of the percentage of the merger consideration to be paid in cash. If the
merger occurs after February 28, 1999, AIMCO must use only stock to complete the
merger, except in limited circumstances. At least 12-NYSE trading days before
the date the special meeting is held, IPT will issue a press release to announce
the percentage of the merger consideration AIMCO has elected to pay in cash and
the percentage to be paid in stock.
 
     As long as the merger is completed prior to March 1, 1999, the
consideration you will receive for each share of IPT will be:
 
     - shares of Class A common stock of AIMCO equal to (a) the stock percentage
       elected by AIMCO multiplied by (b) the quotient of (i) the total of (A)
       $13.28 minus (B) any per share extraordinary distributions made on shares
       of IPT to maintain its qualification as a REIT for income tax purposes
       divided by (ii) the AIMCO Exchange Value; plus
 
     - cash in the amount of (a) the cash percentage elected by AIMCO multiplied
       by (b) the total of (i) $13.25 minus (ii) any per share extraordinary
       distributions
                                       13
<PAGE>   20
 
       made on shares of IPT to maintain its qualification as a REIT for income
       tax purposes plus (iii) cash equal to (A) $0.0036 multiplied by (B) the
       number of days from and including January 1, 1999 through and including
       the day before completion of the merger.
 
     If the merger is completed on or after March 1, 1999, the stock percentage
will be 100% and no cash will be issued as merger consideration, except in
limited circumstances.
 
  Ownership of AIMCO Following the Merger
 
     If part or all the merger consideration is paid in shares of Class A common
stock of AIMCO, the number of shares of Class A common stock of AIMCO to be
issued in the merger will depend on the market price of Class A common stock of
AIMCO over a 10-trading day period. The formula is described in the Merger
Agreement and beginning on page 75 of this Information Statement/Prospectus.
Assuming that AIMCO does not elect to pay any part of the merger consideration
in cash, and assuming the merger had been completed on December 31, 1998, IPT
shareholders (other than AIMCO and its subsidiaries) would own approximately
5.9% of the outstanding shares of Class A common stock of AIMCO after the
merger.
 
  Conditions to the Merger
 
     The merger will be completed only if a number of conditions are met or
waived, including the following:
 
     - the required approval of IPT shareholders has been obtained;
 
     - no law, regulation, injunction or order restrains or prohibits completion
       of the merger;
 
     - if any shares of Class A common stock of AIMCO are to be issued in the
       merger, the registration statement filed in connection with the issuance
       of shares of Class A common stock of AIMCO in the merger will be
       effective at the time the merger is completed;
 
     - breaches of representations or warranties by IPT do not result in
       aggregate losses, damages and expenses to AIMCO of more than $50 million;
 
     - breaches of representations or warranties by AIMCO or material adverse
       changes of AIMCO and its subsidiary which is expected to be merged into
       IPT do not result in aggregate losses, damages and expenses to IPT of
       more than $50 million; and
 
     - delivery of certain legal opinions.
 
  Termination of the Merger Agreement
 
     The Board of Directors of AIMCO and the trustees of IPT who were not
nominated by AIMCO, on behalf of IPT, may agree in writing to terminate the
Merger Agreement without completing the merger. The Merger Agreement may also be
terminated in certain other circumstances, including:
 
     - by either AIMCO or a majority of the trustees of IPT who were not
       nominated by AIMCO, on behalf of IPT, if the merger has not been
       completed by December 31, 2001; or
                                       14
<PAGE>   21
 
     - by a majority of the trustees of IPT who were not nominated by AIMCO, on
       behalf of IPT, if:
 
        (1) they have determined in good faith, after negotiating with AIMCO for
        at least five days, that another proposal to acquire a substantial
        amount of assets of IPT or Insignia Properties, L.P. or outstanding
        shares of IPT or partnership interests of Insignia Properties, L.P. by
        purchase, merger or consolidation or other business combination would be
        more favorable from a financial point of view to the IPT shareholders
        and is likely to be consummated; or
 
        (2) AIMCO has failed to cure an action that constitutes an anticipatory
        repudiation of the Merger Agreement within ten days from receipt of
        notice.
 
     If the Merger Agreement is terminated, AIMCO and IPT will unwind certain
transactions entered into between AIMCO and IPT (or entities controlled by IPT)
that occurred before the termination of the Merger Agreement.
 
  Accounting Treatment
 
     AIMCO will account for the merger under the purchase method of accounting.
Under this method of accounting, the purchase price will be allocated to assets
acquired and liabilities assumed based on their estimated fair values.
 
  Regulatory Matters
 
     Although clearance by the U.S. Department of Housing and Urban Development
or "HUD" is not a condition to completion of the merger and may not be required
under HUD regulations, AIMCO has applied for approval from HUD to acquire a 10%
or greater stock interest in IPT, whose subsidiaries hold an ownership interest
in certain apartment properties assisted or insured by HUD. HUD approved AIMCO's
acquisition of IFG in connection with a settlement agreement between AIMCO and
HUD.
 
  Federal Income Tax Consequences
 
     If AIMCO pays part or all of the merger consideration in shares of Class A
common stock of AIMCO, you will not recognize taxable gain or loss on the
receipt of such shares when exchanged for your shares of IPT. However, all cash
paid by AIMCO will be taxable. You will recognize taxable gain or loss in an
amount by which the fair market value of the shares of Class A common stock of
AIMCO and cash you receive in the merger exceeds or is less than your adjusted
tax basis in your shares of IPT.
 
  No Appraisal Rights
 
     Under Maryland law, holders of shares of IPT will not be entitled to any
objecting shareholders' rights to fair value in connection with the merger.
 
  Stock Exchange Listing
 
     AIMCO will apply to list any shares of Class A common stock of AIMCO which
may be issued in the merger on the New York Stock Exchange.
                                       15
<PAGE>   22
 
SUMMARY RISK FACTORS
 
     You should consider carefully certain risks relating to the merger.
 
     If you receive any shares of Class A common stock of AIMCO as merger
consideration you should consider the following:
 
     - AIMCO has significant amounts of debt outstanding, certain of which bears
       interest at variable rates and imposes significant restrictions on AIMCO;
 
     - AIMCO may not be able to combine the businesses of AIMCO and IPT
       successfully and may not realize the benefits anticipated from the
       merger; and
 
     - AIMCO and IPT are subject to various risks associated with investments in
       and management of real estate.
 
     If the Merger Agreement is terminated, AIMCO and IPT will unwind certain
transactions entered into between AIMCO and IPT (or entities controlled by IPT)
before such termination.
 
     YOU SHOULD EVALUATE CAREFULLY THE MATTERS SET FORTH UNDER "RISK FACTORS"
BEGINNING ON PAGE 32.
 
FLUCTUATIONS IN MARKET PRICE
 
     If AIMCO elects to pay part or all of the merger consideration in shares of
its Class A common stock, the number of shares of Class A common stock of AIMCO
you will receive will depend upon the AIMCO Exchange Value, which is subject to
fluctuation because it is based on the lesser of two averages -- the average
sales price of the Class A common stock of AIMCO for the 10 NYSE-trading day
period before the special meeting (the "AIMCO Reference Price") and $36.8781,
which was the average sales price of the Class A common stock of AIMCO for the
last 10 NYSE-trading days in 1998. You are urged to obtain current market
quotations for the Class A common stock of AIMCO. You may call toll-free
1-877-249-6580 to obtain the then AIMCO Reference Price for the 10 NYSE-trading
days ended on the preceding trading day (remember this may not be the actual 10
NYSE-trading day period which will be used to determine the AIMCO Reference
Price).
 
COMPARATIVE PER SHARE DATA
 
     The shares of IPT are traded on the American Stock Exchange under the
symbol "FFO" and the shares of Class A common stock of AIMCO are traded on the
NYSE under the symbol "AIV." On October 1, 1998, the last full trading day prior
to the public announcement of the execution of the original merger agreement,
the last reported sales price of a share of IPT was $12.1875 and the last
reported sales price of a share of Class A common stock of AIMCO was $36.5625.
On January 25, 1999, the last reported sales price of a share of IPT was
$13 1/16 and the last reported sales price of a share of Class A common stock of
AIMCO was $38 1/8. You are urged to obtain current quotations for shares of IPT
and shares of Class A common stock of AIMCO.
                                       16
<PAGE>   23
 
     Set forth below are historical and pro forma earnings per share of Class A
common stock of AIMCO, cash dividends per share of Class A common stock of AIMCO
and book value per share of Class A common stock of AIMCO and historical and
equivalent pro forma earnings per share of IPT, cash dividends per share of IPT
and book value per share of IPT. The data set forth below should be read in
conjunction with the AIMCO and IPT audited financial statements, unaudited
interim financial statements, and unaudited pro forma financial statements
including the notes thereto, which are either incorporated by reference or
included in this Information Statement/Prospectus. The pro forma data are not
necessarily indicative of the actual financial position that would have
occurred, or future operating results that would occur, upon completion of the
merger.
 
<TABLE>
<CAPTION>
                                              AIMCO                                          IPT
                           -------------------------------------------   -------------------------------------------
                            NINE MONTHS                                   NINE MONTHS
                               ENDED        YEAR ENDED     YEAR ENDED        ENDED        YEAR ENDED     YEAR ENDED
                           SEPTEMBER 30,   DECEMBER 31,   DECEMBER 31,   SEPTEMBER 30,   DECEMBER 31,   DECEMBER 31,
                               1998            1997           1996           1998            1997           1996
                           -------------   ------------   ------------   -------------   ------------   ------------
<S>                        <C>             <C>            <C>            <C>             <C>            <C>
HISTORICAL:
Basic earnings per
  weighted average common
  share outstanding.......    $ 0.80          $ 1.09         $ 1.05         $ 0.59          $ 0.40         $   --(a)
Diluted earnings per
  weighted average common
  share outstanding.......    $ 0.79          $ 1.08         $ 1.04         $ 0.59          $ 0.40         $   --(a)
Cash dividends per common
  share outstanding.......    $ 1.6875        $ 1.95         $ 1.70         $ 0.46          $ 0.30         $ 0.20
Book value per common
  share outstanding (at
  period end).............    $31.71          $22.51         $14.88         $ 8.33          $ 7.87         $ 6.33
</TABLE>
 
- -------------------------
 
(a)  Earnings per share is not presented for IPT prior to 1997 because shares of
     IPT were not issued until December 30, 1996.
 
<TABLE>
<CAPTION>
                                                          NINE MONTHS
                                                             ENDED        YEAR ENDED
                                                         SEPTEMBER 30,   DECEMBER 31,
                                                             1998            1997
                                                         -------------   ------------
<S>                                                      <C>             <C>
AIMCO PRO FORMA PER SHARE(1):
Basic earnings (loss) per common share outstanding.....     $ 0.07          $(0.58)
Diluted earnings (loss) per common share outstanding...     $ 0.07          $(0.58)
Cash dividends per common share outstanding............     $ 1.69          $ 1.95
Book value per common share outstanding (end of
  period)..............................................     $25.85          $26.91
IPT PRO FORMA PER SHARE EQUIVALENTS(2):
Basic earnings (loss) per common share outstanding.....     $ 0.03          $(0.25)
Diluted earnings (loss) per common share outstanding...     $ 0.03          $(0.25)
Cash dividends per common share outstanding............     $ 0.71          $ 0.78
Book value per common share outstanding (end of
  period)..............................................     $10.88          $11.33
</TABLE>
 
                                       17
<PAGE>   24
 
- -------------------------
 
(1) The pro forma combined per share data for AIMCO for the year ended December
    31, 1997 have been prepared as if the merger and other transactions had
    occurred as of January 1, 1997, resulting in weighted average shares
    outstanding of 61,149,942 for the nine months ended September 30, 1998 and
    59,935,706 for the year ended December 31, 1997.
 
(2) The equivalent pro forma per share amounts of IPT are calculated by
    multiplying the AIMCO pro forma earnings per share, cash dividends per share
    and book value per share by $13.28 and dividing by an assumed AIMCO Exchange
    Value of $31.50. Assumes AIMCO elects to pay all of the merger consideration
    in stock.
 
     The following table sets forth historical high and low sales prices
reported on (1) the American Stock Exchange for the shares of IPT and (2) the
New York Stock Exchange for the Class A common stock of AIMCO. Prior to
September 17, 1998, there was no established trading market for the shares of
IPT.
 
<TABLE>
<CAPTION>
                                                                                  CLASS A
                                                                                  COMMON
                                                        SHARES                   STOCK OF
                                                        OF IPT                     AIMCO
                                                 ---------------------     ---------------------
                                                   HIGH         LOW          HIGH         LOW
                                                   ----         ---          ----         ---
<S>                                              <C>          <C>          <C>          <C>
First Quarter 1996.............................    $--          $--          $21 1/8      $19 3/8
Second Quarter 1996............................     --           --           21           18 3/8
Third Quarter 1996.............................     --           --           21 7/8       18 3/8
Fourth Quarter 1996............................     --           --           28 3/8       21 1/8
 
First Quarter 1997.............................     --           --           30 1/2       25 1/2
Second Quarter 1997............................     --           --           29 3/4       26
Third Quarter 1997.............................     --           --           36 3/16      28 1/8
Fourth Quarter 1997............................     --           --           37 7/8       32
 
First Quarter 1998.............................     --           --           38 5/8       34 1/4
Second Quarter 1998............................     --           --           39 3/8       36 1/2
Third Quarter 1998.............................     12 3/4       11 1/2       40 11/16     30 15/16
Fourth Quarter 1998............................     12 3/4       12           37 3/8       30
First Quarter 1999 (through January 25,
  1999)........................................     13 1/16      12 3/4       38 3/16      35 3/4
</TABLE>
 
DISTRIBUTIONS
 
     For 1998, annual distribution rates were $2.3125 per share of Class A
common stock of AIMCO and $0.64 per share of IPT. IPT will not declare or pay
any quarterly distributions on shares of IPT. However, if the merger is not
completed prior to June 1, 1999, the members of the Board of Trustees of IPT not
appointed by AIMCO may resume the payment of distributions, including for the
period during which distributions were not paid. IPT will declare a special
distribution, with a record date on the day before the special meeting, at IPT's
current distribution rate (or a higher rate in certain circumstances) for the
period beginning October 1, 1998 and ending on the day before the
                                       18
<PAGE>   25
 
special meeting, which distribution will be paid fifteen days after the record
date. Furthermore, if the effective time of the merger has not occurred on or
before February 28, 1999 and if at any time thereafter AIMCO declares any
distribution on the Class A common stock of AIMCO, other than a regular
quarterly distribution, which has a record date prior to the date on which the
effective time occurs, then IPT will promptly declare and pay a corresponding
distribution in an amount equal to the amount of such special AIMCO
distribution, multiplied by $13.28, divided by $36.8781, the average price of a
share of Class A common stock of AIMCO during the last ten consecutive trading
days of 1998.
 
     Because each of AIMCO and IPT has elected to be taxed for Federal income
tax purposes as a REIT, each is required to distribute annually to its
stockholders at least 95% of its taxable income. Despite this, the future
payment of distributions by AIMCO and IPT will be at the discretion of the Board
of Directors of AIMCO and the Board of Trustees of IPT and will depend on
numerous factors, including financial condition, capital requirements, the
annual distribution requirements under the provisions of the Federal tax code
applicable to REITs and such other factors as either the Board of Directors of
AIMCO and the Board of Trustees of IPT deems relevant. Credit facilities of
AIMCO and IPT restrict them from making certain distributions to their
respective equityholders.
 
FORWARD-LOOKING STATEMENTS
 
     Certain statements in "Questions and Answers About the Merger" and under
the captions "Summary," "Risk Factors," "Special Factors to Consider," "Business
of AIMCO" and "Business of IPT," in the Pro Forma Financial Statements and
elsewhere in this Information Statement/Prospectus and the documents
incorporated by reference herein contain or may contain information that is
forward looking, including without limitation: statements regarding the effect
of the merger; other acquisitions; AIMCO's and IPT's future financial
performance; and the effect of government regulations. Actual results may differ
materially from those described in the forward looking statements and will be
affected by a variety of risks and factors, including without limitation:
national and local economic conditions; the general level of interest rates;
terms of governmental regulations that affect AIMCO and IPT and interpretations
of those regulations; the competitive environment in which AIMCO and IPT
operate; financing risks, including the risk that AIMCO's cash flow from
operations may be insufficient to meet required payments of principal and
interest; real estate risks, including variations of real estate values and the
general economic climate in local markets and competition for tenants in such
markets; acquisition and development risks, including the failure of
acquisitions to perform in accordance with projections; and possible
environmental liabilities, including costs which may be incurred due to
necessary remediation of contamination of properties owned, acquired or
previously owned by AIMCO or IPT. In addition, each of AIMCO's and IPT's
continued qualification as a REIT involves the application of highly technical
and complex provisions of the Internal Revenue Code. Accordingly, readers should
not place undo reliance on such forward looking statements. Readers should
carefully review AIMCO's and IPT's financial statements and the notes thereto,
as well as the risk factors described herein and in the documents incorporated
herein.
                                       19
<PAGE>   26
 
SUMMARY HISTORICAL FINANCIAL INFORMATION OF AIMCO
 
     The following table sets forth summary historical financial and operating
information for AIMCO. The summary historical financial information for the
years ended December 31, 1997, 1996 and 1995 is based on the audited financial
statements of AIMCO incorporated by reference herein. The summary historical
financial information for the period from January 10, 1994 (the date of AIMCO's
inception) through December 31, 1994 for AIMCO and for the period from January
1, 1994 through July 28, 1994 and for the year ended December 31, 1993 for the
predecessors to AIMCO is based on the audited financial statements of AIMCO and
the predecessors to AIMCO, respectively. Such predecessors include Property
Asset Management, L.L.C. and its affiliated companies and PDI Realty
Enterprises, Inc. The summary historical financial information for AIMCO for the
nine months ended September 30, 1998 and 1997 is based on the unaudited
financial statements of AIMCO incorporated by reference herein. In the opinion
of the management of AIMCO, the operating data for the nine months ended
September 30, 1998 and 1997 include all adjustments (consisting only of normal
recurring adjustments) necessary to present fairly the information set forth
therein. The results for the nine months ended September 30, 1998 are not
necessarily indicative of the results to be obtained for the year ended December
31, 1998. The following information should be read in conjunction with
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and the historical financial statements of AIMCO and notes thereto
incorporated by reference in this Information Statement/Prospectus.
<TABLE>
<CAPTION>
                                                                          AIMCO
                                     --------------------------------------------------------------------------------
                                          FOR THE NINE                                                 FOR THE PERIOD
                                          MONTHS ENDED                  FOR THE YEAR ENDED              JANUARY 10,
                                          SEPTEMBER 30,                    DECEMBER 31,                 1994 THROUGH
                                     -----------------------   -------------------------------------    DECEMBER 31,
                                        1998         1997         1997        1996         1995             1994
                                     ----------   ----------   ----------   --------   -------------   --------------
                                                                                       (RESTATED)(c)   (RESTATED)(c)
                                                          (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                  <C>          <C>          <C>          <C>        <C>             <C>
OPERATING DATA:
 Income from rental property
   operations......................  $   96,562   $   48,154   $   72,477   $ 39,814     $ 27,483        $   9,126
 Income from service company
   business........................       5,668        3,515        2,028      1,717        1,973            1,006
 Income (loss) from operations.....      53,486       19,865       30,246     15,629       14,988            7,702
 Net income (loss).................      51,844       16,815       28,633     12,984       13,375            7,143
PER SHARE DATA:
 Basic earnings per common share...  $     0.80   $     0.77   $     1.09   $   1.05     $   0.86        $    0.42
 Diluted earnings per common
   share...........................  $     0.79   $     0.77   $     1.08   $   1.04     $   0.86        $    0.42
 Weighted average number of common
   shares outstanding..............      44,562       20,576       24,055     12,411        9,571            9,589
 Weighted average number of common
   shares and common share
   equivalents outstanding.........      44,765       20,629       24,436     12,427        9,579            9,589
 Dividends paid per common share...  $   1.6875   $   1.3875   $     1.95   $   1.70     $   1.66        $    0.29
BALANCE SHEET DATA (END OF PERIOD):
 Real estate, before accumulated
   depreciation....................  $2,685,487   $1,250,239   $1,657,207   $865,222     $477,162        $ 406,067
 Real estate, net of accumulated
   depreciation....................   2,355,122    1,107,545    1,503,922    745,145      448,425          392,368
 Cash and cash equivalents.........      43,681       45,775       37,088     13,170        2,379            7,144
 Total assets......................   3,121,949    1,608,195    2,100,510    827,673      480,361          416,739
 Total mortgages and notes
   payable.........................   1,275,401      661,715      808,530    522,146      268,692          141,315
 Mandatorily redeemable convertible
   preferred stock.................          --           --           --         --           --           96,600
 Minority interest in AIMCO
   Properties, L.P.................     137,965      111,632      111,962     58,777       30,376           29,082
 Stockholders' equity..............   1,521,527      627,426    1,045,301    215,749      169,032          140,319
 
<CAPTION>
                                         AIMCO PREDECESSORS(a)
                                     -----------------------------
                                     FOR THE PERIOD
                                       JANUARY 1,       FOR THE
                                      1994 THROUGH     YEAR ENDED
                                        JULY 28,      DECEMBER 31,
                                        1994(b)           1993
                                     --------------   ------------
 
 
<S>                                  <C>              <C>
OPERATING DATA:
 Income from rental property
   operations......................     $ 2,391         $  3,154
 Income from service company
   business........................         360              983
 Income (loss) from operations.....      (1,463)             627
 Net income (loss).................      (1,499)             291
PER SHARE DATA:
 Basic earnings per common share...          --               --
 Diluted earnings per common
   share...........................          --               --
 Weighted average number of common
   shares outstanding..............          --               --
 Weighted average number of common
   shares and common share
   equivalents outstanding.........          --               --
 Dividends paid per common share...          --               --
BALANCE SHEET DATA (END OF PERIOD):
 Real estate, before accumulated
   depreciation....................     $47,500         $ 46,819
 Real estate, net of accumulated
   depreciation....................      33,270           33,701
 Cash and cash equivalents.........       1,531              809
 Total assets......................      39,042           38,914
 Total mortgages and notes
   payable.........................      40,873           41,893
 Mandatorily redeemable convertible
   preferred stock.................          --               --
 Minority interest in AIMCO
   Properties, L.P.................          --               --
 Stockholders' equity..............      (9,345)          (7,556)
</TABLE>
 
                                       20
<PAGE>   27
<TABLE>
<CAPTION>
                                                                          AIMCO
                                     --------------------------------------------------------------------------------
                                          FOR THE NINE                                                 FOR THE PERIOD
                                          MONTHS ENDED                  FOR THE YEAR ENDED              JANUARY 10,
                                          SEPTEMBER 30,                    DECEMBER 31,                 1994 THROUGH
                                     -----------------------   -------------------------------------    DECEMBER 31,
                                        1998         1997         1997        1996         1995             1994
                                     ----------   ----------   ----------   --------   -------------   --------------
                                                                                       (RESTATED)(c)   (RESTATED)(c)
                                                          (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                  <C>          <C>          <C>          <C>        <C>             <C>
CASH FLOW DATA:
 Cash provided by operating
   activities......................  $   50,825   $   53,435   $   73,032   $ 38,806     $ 25,911        $  16,825
 Cash used in investing
   activities......................    (185,453)    (314,814)    (717,663)   (88,144)     (60,821)        (186,481)
 Cash provided by (used in)
   financing activities............     141,221      293,984      668,549     60,129       30,145          176,800
OTHER DATA:
 Funds from operations(d)..........  $  132,881   $   49,692   $   81,155   $ 35,185     $ 25,285        $   9,391
 Weighted average number of common
   shares, common share equivalents
   and partnership common units
   outstanding(e)..................      53,007       24,347       29,119     14,994       11,461           10,920
 Ratio of earnings to fixed
   charges(f)......................       1.8:1        1.6:1        1.5:1      1.6:1        2.1:1            5.8:1
 Ratio of earnings to combined
   fixed charges and preferred
   stock dividends(g)(h)...........       1.4:1        1.5:1        1.5:1      1.6:1        1.5:1            2.0:1
 
<CAPTION>
                                         AIMCO PREDECESSORS(a)
                                     -----------------------------
                                     FOR THE PERIOD
                                       JANUARY 1,       FOR THE
                                      1994 THROUGH     YEAR ENDED
                                        JULY 28,      DECEMBER 31,
                                        1994(B)           1993
                                     --------------   ------------
 
<S>                                  <C>              <C>
CASH FLOW DATA:
 Cash provided by operating
   activities......................     $ 2,678         $  2,203
 Cash used in investing
   activities......................        (924)         (16,352)
 Cash provided by (used in)
   financing activities............      (1,032)          14,114
OTHER DATA:
 Funds from operations(d)..........          --               --
 Weighted average number of common
   shares, common share equivalents
   and partnership common units
   outstanding(e)..................         N/A              N/A
 Ratio of earnings to fixed
   charges(f)......................          --(i)         1.2:1
 Ratio of earnings to combined
   fixed charges and preferred
   stock dividends(g)(h)...........          --(i)         1.2:1
</TABLE>
 
- ---------------
 
(a) On July 29, 1994, AIMCO completed its initial public offering of 9,075,000
    shares of its Class A common stock and issued 966,000 shares of convertible
    preferred stock and 513,514 unregistered shares of its Class A common stock.
    On such date, AIMCO and the predecessors to AIMCO engaged in a business
    combination and consummated a series of related transactions which enabled
    AIMCO to continue and expand the property management and related businesses
    of the predecessors to AIMCO. The 966,000 shares of convertible preferred
    stock and 513,514 shares of Class A common stock of AIMCO were repurchased
    by AIMCO in 1995.
 
(b) Represents the period January 1, 1994 through July 28, 1994, the date of the
    completion of the business combination with AIMCO.
 
(c) In the second quarter of 1996, AIMCO effected an internal reorganization. As
    a result AIMCO Properties, L.P. owns (i) all of the non-voting preferred
    stock (95% of the economic interest) of the service company, Property Asset
    Management Services, Inc. and (ii) the 1% general partnership interest in
    Property Asset Management Services, L.P. Property Asset Management Services,
    Inc. owns the 99% limited partnership interest in Property Asset Management
    Services, L.P. Because AIMCO Properties, L.P. controls the activity of the
    partnership, the results of operations for the service company are
    consolidated. Prior to the reorganization, AIMCO reported the service
    company business on the equity method. The restatement had no impact on net
    income, but increased third party and affiliate management and other income,
    management and other expenses, amortization of management company goodwill
    and depreciation of non-real estate assets. AIMCO restated its balance sheet
    as of December 31, 1995 and 1994, and the statements of income and
    statements of cash flows for the year ended December 31, 1995 and the period
    from January 10, 1994 through December 31, 1994 to reflect the change.
 
(d) AIMCO's management believes that the presentation of funds from operations,
    when considered with the financial data determined in accordance with GAAP,
    provides a useful measure of AIMCO's performance. However, funds from
    operations does not represent cash flow and is not necessarily indicative of
    cash flow or liquidity available to AIMCO, nor should it be considered as an
    alternative to net income as an indicator of operating performance. The
    Board of Governors of the National
                                       21
<PAGE>   28
 
    Association of Real Estate Investment Trusts defines funds from operations
    as net income (loss), computed in accordance with GAAP, excluding gains and
    losses from debt restructuring and sales of property, plus real estate
    related depreciation and amortization (excluding amortization of financing
    costs), and after adjustments for unconsolidated partnerships and joint
    ventures. AIMCO calculates funds from operations in a manner consistent with
    this definition, which includes adjustments for minority interest in AIMCO
    Properties, L.P. plus amortization of goodwill, the non-cash deferred
    portion of the income tax provision for unconsolidated subsidiaries and less
    the payments of dividends on preferred stock. AIMCO's management believes
    that presentation of funds from operations provides investors with
    industry-accepted measurements which help facilitate an understanding of
    AIMCO's ability to make required dividend payments, capital expenditures and
    principal payments on its debt. There can be no assurance that AIMCO's basis
    of computing funds from operations is comparable with that of other REITs.
 
          The following is a reconciliation of income before minority interest
     in AIMCO Properties, L.P. to funds from operations:
 
<TABLE>
<CAPTION>
                                              FOR THE NINE                                    FOR THE PERIOD
                                              MONTHS ENDED          FOR THE YEAR ENDED         JANUARY 10,
                                             SEPTEMBER 30,             DECEMBER 31,            1994 THROUGH
                                           ------------------   ---------------------------    DECEMBER 31,
                                             1998      1997      1997      1996      1995          1994
                                           --------   -------   -------   -------   -------   --------------
                                                                    (IN THOUSANDS)
<S>                                        <C>        <C>       <C>       <C>       <C>       <C>
        Income before minority interest
          in AIMCO Properties, L.P.......  $ 56,269   $19,427   $32,697   $15,673   $14,988      $ 7,702
        Gain on disposition of
          property.......................    (2,783)      169    (2,720)      (44)       --           --
        Extraordinary item...............        --       269       269        --        --           --
        Real estate depreciation, net of
          minority interests.............    56,900    21,052    33,751    19,056    15,038        4,727
        Amortization of goodwill.........     7,077       711       948       500       428           76
        Equity in earnings of
          unconsolidated subsidiaries:
          Real estate depreciation.......        --     2,689     3,584        --        --           --
          Amortization of management
            contracts....................     4,201       430     1,587        --        --           --
          Deferred taxes.................     6,134     2,164     4,894        --        --           --
        Equity in earnings of other
          partnerships:
          Real estate depreciation.......    17,379     2,781     6,280        --        --           --
        Preferred stock dividends........   (12,296)       --      (135)       --    (5,169)      (3,114)
                                           --------   -------   -------   -------   -------      -------
        Funds from operations............  $132,881   $49,692   $81,155   $35,185   $25,285      $ 9,391
                                           ========   =======   =======   =======   =======      =======
</TABLE>
 
(e) Generally, after a one-year holding period, units in AIMCO Properties, L.P.
    may be tendered for redemption at the option of the holder and, upon tender,
    must be acquired by AIMCO, at its election, for (x) shares of Class A common
    stock of AIMCO at an exchange ratio of one share of Class A common stock of
    AIMCO for each unit (subject to adjustment) or (y) cash.
 
(f) The ratio of earnings to fixed charges for AIMCO was computed by dividing
    earnings by fixed charges. For this purpose, "earnings" consists of income
    before minority interest in AIMCO Properties, L.P., minority interest in
    other partnerships and earnings in unconsolidated subsidiaries and
    partnerships, plus distributions received from unconsolidated subsidiaries
    and partnerships, plus fixed charges (other than any interest which has been
    capitalized); and "fixed charges" consists of interest expense (including
    amortization of loan costs) and interest which has been capitalized. The
    ratio of earnings to fixed charges for the predecessors to AIMCO was
    computed by
                                       22
<PAGE>   29
 
    dividing earnings by fixed charges. For this purpose, "earnings" consists of
    income (loss) before extraordinary items and income taxes plus fixed charges
    and "fixed charges" consists of interest expense (including amortization of
    loan costs).
 
(g) The ratio of earnings to combined fixed charges and preferred stock
    dividends for AIMCO was computed by dividing earnings by the total of fixed
    charges and preferred stock dividends. For this purpose, "earnings" consists
    of income before minority interest in AIMCO Properties, L.P., minority
    interest in other partnerships and earnings in unconsolidated subsidiaries
    and partnerships, plus distributions received from unconsolidated
    subsidiaries and partnerships plus fixed charges (other than any interest
    which has been capitalized); "fixed charges" consists of interest expense
    (including amortization of loan costs) and interest which has been
    capitalized; and "preferred stock dividends" consists of the amount of
    pre-tax earnings that would be required to cover preferred stock dividend
    requirements.
 
(h) The predecessors to AIMCO did not have any shares of preferred stock
    outstanding during the period from January 1, 1993 through July 28, 1994.
 
(i) The earnings of the predecessors to AIMCO for the period from January 1,
    1994 to July 28, 1994 were inadequate to cover fixed charges by $1,463,000.
                                       23
<PAGE>   30
 
SUMMARY CONSOLIDATED AND COMBINED FINANCIAL DATA OF IPT
 
     The following is a summary of historical financial data of IPT and its
subsidiaries and predecessors. The summary financial data have been derived from
IPT's consolidated financial statements and the combined financial statements of
its predecessor and, in the opinion of management of IPT, include all
adjustments (consisting of only normal recurring adjustments) necessary for a
fair presentation of the financial position and results of operations for the
periods presented. The information set forth below is not necessarily indicative
of the results of future operations and should be read in conjunction with IPT's
financial statements and the related notes thereto and "Management's Discussion
and Analysis of Financial Condition and Results of Operations of IPT and the IPT
Partnerships" included elsewhere in this Information Statement/ Prospectus.
 
<TABLE>
<CAPTION>
                                       NINE MONTHS ENDED
                                         SEPTEMBER 30,                   YEAR ENDED DECEMBER 31,
                                     ---------------------     -------------------------------------------
                                        1998        1997          1997        1996       1995       1994
                                     ----------   --------     ----------   --------   --------   --------
                                        (IN THOUSANDS, EXCEPT PER SHARE DATA AND PROPERTY INFORMATION)
<S>                                  <C>          <C>          <C>          <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA
  Revenues.........................  $   19,592   $ 11,144     $   16,826   $  9,705   $  2,459   $    113
  Income before extraordinary
    item...........................  $   11,520   $  2,930     $    6,074   $  3,557   $  2,215   $    113
  Net income.......................  $   11,227   $  2,930     $    6,004   $  2,425   $  2,215   $    113
  Income before extraordinary item
    per share (diluted)............  $     0.60   $   0.21     $     0.41        n/a        n/a        n/a
  Net income per share (diluted)...  $     0.59   $   0.21     $     0.40        n/a        n/a        n/a
  Cash distributions to IPT
    shareholders per share.........  $     0.46         --     $     0.30   $   0.20        n/a        n/a
  Weighted average shares of IPT
    outstanding (diluted)..........      19,158     13,450         14,694        n/a        n/a        n/a
BALANCE SHEET DATA (END OF PERIOD)
  Cash.............................  $   56,085   $ 53,897     $   37,432   $  4,928   $    528         --
  Investments in real estate
    limited partnerships...........  $  183,072   $126,505     $  159,469   $118,741   $ 54,037   $ 38,346
  Total assets.....................  $  322,111   $206,748     $  226,068   $147,757   $ 54,565   $ 38,346
  Long-term debt...................  $   59,002   $ 19,300     $   19,300   $ 19,730         --         --
  Minority interest in Insignia
    Properties, L.P................  $   58,849   $ 47,988     $   54,447   $ 50,429         --         --
  Minority interest in other
    consolidated subsidiaries......          --         --             --         --   $  2,682         --
  Shareholders' equity.............  $  195,366   $138,710     $  146,212   $ 70,639   $ 51,874   $ 38,346
OTHER DATA
  Cash provided by (used in)
    operating activities...........  $    2,534   $  1,227     $    2,338   $  1,420   $   (100)  $     --
  Cash provided by (used in)
    provided by investing
    activities.....................  $   (3,094)  $  7,129     $  (16,481)  $(70,834)  $(13,237)  $(38,233)
  Cash provided by financing
    activities.....................  $   19,213   $ 40,613     $   46,647   $ 73,814   $ 13,865   $ 38,233
  Funds from operations(a).........  $   24,633   $ 14,176     $   20,939   $ 12,563   $  4,611   $    113
  Number of IPT Partnerships(b)....          42         26             29         26         13          4
  Number of properties(b)..........         197        136            150        136         86         32
  Apartment units(b)...............      48,323     36,077         38,369     36,077     19,337      7,433
  Commercial square feet(b)........   3,026,904     819,00      1,667,874    819,000    767,172    453,977
</TABLE>
 
- -------------------------
 
(a)  In accordance with the resolution adopted by the Board of Governors of the
     National Association of Real Estate Investment Trusts, funds from
     operations represents net income (loss)(computed in accordance with GAAP),
     excluding gains (or losses) from debt restructuring or sales of property,
     plus depreciation of real property, and after adjustments for
     unconsolidated partnerships and joint ventures. Funds from operations
     should not be considered as an alternative to net income or other
     measurements under generally accepted accounting principles as an indicator
     of operating performance or to cash flows from operating, investing or
     financing activities as a
                                       24
<PAGE>   31
 
     measure of liquidity. Funds from operations does not reflect working
     capital changes, cash expenditures for capital improvements or principal
     payments on indebtedness. IPT believes that funds from operations is
     helpful to investors as a measure of the performance of an equity REIT,
     because along with cash flows from operating activities, financing
     activities and investing activities, it provides investors with an
     understanding of the ability of IPT to incur and service debt and make
     capital distributions. Funds from operations computed by IPT may not be
     comparable to other similarly titled measures of other REITs. Funds from
     operations is calculated as follows:
 
<TABLE>
<CAPTION>
                                      NINE MONTHS ENDED
                                        SEPTEMBER 30,            YEAR ENDED DECEMBER 31,
                                     --------------------   ---------------------------------
                                      1998         1997      1997      1996      1995    1994
                                     -------      -------   -------   -------   ------   ----
                                                          (IN THOUSANDS)
   <S>                               <C>          <C>       <C>       <C>       <C>      <C>
   Operating income................  $12,254      $ 5,853   $ 9,470   $ 3,913   $2,346   $113
   Depreciation and amortization...   12,971        8,988    12,288     9,388    2,265     --
   Minority interest in National
     Property Investors 4's funds
     from operations...............     (592)        (665)     (819)     (738)      --     --
                                     -------      -------   -------   -------   ------   ----
   Funds from operations...........  $24,633      $14,176   $20,939   $12,563   $4,611   $113
                                     =======      =======   =======   =======   ======   ====
</TABLE>
 
(b)  Includes only the IPT Partnerships.
                                       25
<PAGE>   32
 
SUMMARY PRO FORMA FINANCIAL AND OPERATING INFORMATION OF AIMCO
 
     The following table sets forth summary pro forma financial and operating
information of AIMCO for the nine months ended September 30, 1998 and for the
year ended December 31, 1997. The pro forma financial and operating information
gives effect to the merger, the merger of IFG into AIMCO (after giving effect to
the spin-off of New Insignia), the payment of a one-time approximately $44.7
million dividend on the shares of AIMCO's Class E Cumulative Convertible
Preferred Stock issued in the merger of IFG into AIMCO and the issuance of
shares of Class A common stock of AIMCO upon the conversion of such shares of
Class E Preferred Stock, the transfer of certain assets and liabilities of IFG
to certain unconsolidated subsidiaries of AIMCO, the acquisition of Ambassador
Apartments, Inc., and a number of other transactions completed by AIMCO prior to
the merger. The pro forma financial and operating information set forth below
should be read in conjunction with, and is qualified in its entirety by, the
historical and pro forma financial statements and notes thereto of AIMCO, NHP
Incorporated, the NHP Real Estate Companies (as defined in Note 1 to such
financial statements), NHP Southwest Partners, L.P., the NHP New LP Entities (as
defined in Note 1 of such financial statements included in Amendment No. 1 to
AIMCO's Current Report on Form 8-K, dated June 3, 1997 (the "June 3, 1997 Form
8-K, Amendment No. 1")), the NHP Borrower Entities (as defined in Note 1 of such
financial statements included in the June 3, 1997 Form 8-K, Amendment No. 1),
The Bay Club at Aventura, the Morton Towers Apartments, the Thirty-five
Acquisition Properties (as defined in AIMCO's Current Report on Form 8-K dated
October 15, 1997), First Alexandria Associates, The Oak Park Partnership,
Country Lakes Associates Two, Point West Limited Partners, Ambassador
Apartments, Inc., IFG, the Cirque Apartment Communities, the Realty Investment
Apartment Communities I, the Realty Investment Apartment Communities II, the Sun
Lakes Apartments and the Calhoun Beach Club Apartments, which are incorporated
by reference in this Information Statement/Prospectus or included in prior
filings of AIMCO. See "Pro Forma Financial Information of AIMCO (Merger)."
 
<TABLE>
<CAPTION>
                                                   PRO FORMA FOR      PRO FORMA FOR
                                                  THE NINE MONTHS     THE YEAR ENDED
                                                ENDED SEPTEMBER 30,    DECEMBER 31,
                                                       1998                1997
                                                -------------------   --------------
                                                           (IN THOUSANDS)
<S>                                             <C>                   <C>
OPERATING DATA:
  Income from rental property operations......       $ 118,353          $ 140,744
  Income (loss) from service company
     business.................................       $  (4,378)         $ (14,949)
  Income before minority interest in AIMCO
     Properties, L.P. ........................       $  35,708          $   1,741
  Net income attributable to preferred
     stockholders.............................       $  30,914          $  41,174
  Net income (loss) attributable to common
     stockholders.............................       $   4,255          $ (35,003)
</TABLE>
 
                                       26
<PAGE>   33
 
<TABLE>
<CAPTION>
                                                   PRO FORMA FOR      PRO FORMA FOR
                                                  THE NINE MONTHS     THE YEAR ENDED
                                                ENDED SEPTEMBER 30,    DECEMBER 31,
                                                       1998                1997
                                                -------------------   --------------
                                                           (IN THOUSANDS)
<S>                                             <C>                   <C>
PER SHARE DATA:
  Basic earnings (loss) per common share......       $    0.07          $   (0.58)
  Diluted earnings (loss) per common share....       $    0.07          $   (0.58)
  Weighted average number of common shares
     outstanding..............................          61,150             59,936
  Weighted average number of common shares and
     common share equivalents outstanding.....          61,814             60,780
  Dividends paid per common share.............       $    1.69          $    1.95
CASH FLOW DATA:
  Cash provided by operating activities(a)....       $ 153,669          $ 160,496
  Cash used by investing activities(b)........       $ (13,883)         $ (18,510)
  Cash used by financing activities(c)........       $(154,351)         $(176,589)
OTHER DATA:
  Funds from operations(d)....................       $ 172,803          $ 173,612
  Weighted average number of common shares,
     common share equivalents and units of
     AIMCO Properties, L.P. outstanding(e)....          74,235             73,329
</TABLE>
 
<TABLE>
<CAPTION>
                                                                 PRO FORMA AS OF
                                                                  SEPTEMBER 30,
                                                                      1998
                                                              ---------------------
                                                                 (IN THOUSANDS)
<S>                                                           <C>
BALANCE SHEET DATA:
  Real estate, before accumulated depreciation..............       $2,947,670
  Real estate, after accumulated depreciation...............        2,617,305
  Cash and cash equivalents.................................           98,848
  Total assets..............................................        4,470,458
  Total mortgages and notes payable.........................        1,687,755
  Minority interest in AIMCO Properties, L.P. ..............          183,141
  Company-obligated mandatorily redeemable convertible
     securities of a subsidiary trust.......................          149,500
  Stockholders' equity......................................        2,074,309
</TABLE>
 
- -------------------------
 
(a)  Pro forma cash provided by operating activities represents income before
     income allocable to minority interests, plus depreciation and amortization,
     less the non-cash portion of AIMCO's equity in earnings of unconsolidated
     subsidiaries. The pro forma amounts do not include adjustments for changes
     in working capital resulting from changes in current assets and current
     liabilities as there is no historical data available as of both the
     beginning and end of each period presented.
 
(b)  On a pro forma basis, cash used in investing activities represents the
     minimum annual provision for capital replacements of $300 per owned
     apartment unit.
                                       27
<PAGE>   34
 
(c)  Pro forma cash used in financing activities represents (i) estimated
     dividends to be paid based on AIMCO's historical dividend rate of $1.6875
     per share for the nine months ended September 30, 1998 and $1.95 per share
     for the year ended December 31, 1997, on outstanding Class A common stock,
     (ii) estimated dividends to be paid based on the rate of $5.34375 per share
     for the nine months ended September 30, 1998 and $7.125 per share for the
     year ended December 31, 1997 on AIMCO's outstanding Class B Preferred
     Stock, (iii) estimated dividends to be paid based on the rate of $1.6875
     per share for the nine months ended September 30, 1998 and $2.25 per share
     for the year ended December 31, 1997 on AIMCO's outstanding Class C
     Preferred Stock, (iv) estimated dividends to be paid based on the rate of
     $1.6425 per share for the nine months ended September 30, 1998 and $2.19
     per share for the year ended December 31, 1997 on AIMCO's outstanding Class
     D Preferred Stock, (v) estimated dividends to be paid based on the rate of
     $1.7578 per share for the nine months ended September 30, 1998 and $2.34375
     per share for the year ended December 31, 1997 on AIMCO's outstanding Class
     G Preferred Stock, (vi) estimated dividends to be paid based on the rate of
     $1.78125 per share for the nine months ended September 30, 1998 and $2.375
     per share for the year ended December 31, 1997 on AIMCO's outstanding Class
     H Preferred Stock and (vii) estimated dividends to be paid based on the
     rate of $5.25 per share for the nine months ended September 30, 1998 and
     $7.00 per share for the year ended December 31, 1997 on AIMCO's outstanding
     Class J Preferred Stock.
 
(d)  AIMCO's management believes that the presentation of funds from operations,
     when considered with the financial data determined in accordance with GAAP,
     provides useful measures of AIMCO's performance. However, funds from
     operations does not represent cash flow and is not necessarily indicative
     of cash flow or liquidity available to AIMCO, nor should it be considered
     as an alternative to net income as an indicator of operating performance.
     The Board of Governors of the National Association of Real Estate
     Investment Trusts defines funds from operations as net income (loss),
     computed in accordance with GAAP, excluding gains and losses from debt
     restructuring and sales of property, plus real estate related depreciation
     and amortization (excluding amortization of financing costs), and after
     adjustments for unconsolidated partnerships and joint ventures. AIMCO
     calculates funds from operations in a manner consistent with this
     definition, which includes adjustments for minority interest in AIMCO
     Properties, L.P., plus amortization of goodwill, the non-cash deferred
     portion of the income tax provision for unconsolidated subsidiaries and
     less the payments of dividends on preferred stock. AIMCO's management
     believes that presentation of funds from operations provides investors with
     an industry accepted measurement which helps facilitate an understanding of
     AIMCO's ability to make required dividend payments, capital expenditures
     and principal payments on its debt. There can be no assurances that AIMCO's
     basis of computing funds from operations is comparable with that of other
     REITs.
                                       28
<PAGE>   35
 
          The following is a reconciliation of pro forma income before minority
     interest in AIMCO Properties, L.P. to pro forma funds from operations:
 
<TABLE>
<CAPTION>
                                           PRO FORMA FOR      PRO FORMA FOR
                                          THE NINE MONTHS     THE YEAR ENDED
                                        ENDED SEPTEMBER 30,    DECEMBER 31,
                                               1998                1997
                                        -------------------   --------------
                                                   (IN THOUSANDS)
<S>                                     <C>                   <C>
Income before minority interest in
  AIMCO Properties, L.P. .............       $ 35,708            $  1,741
HUD release fee and legal reserve.....             --              10,202
Amortization of management
  contracts...........................          8,660              11,546
Real estate depreciation, net of
  minority interests..................         74,270              90,048
Amortization of management company
  goodwill............................         16,100              19,356
Equity in earnings of unconsolidated
  subsidiaries:
  Real estate depreciation............             --               1,715
  Amortization of management company
     goodwill.........................            959               1,918
  Amortization of management
     contracts........................         21,704              28,775
  Deferred taxes......................            162                (231)
Equity in earnings of other
  partnerships:
  Real estate depreciation............         44,399              47,375
Interest on convertible debentures....         (7,537)            (10,003)
Preferred stock dividends.............        (21,622)            (28,830)
                                             --------            --------
Funds from operations.................       $172,803            $173,612
                                             ========            ========
</TABLE>
 
(e)  Generally, after a one year holding period, units of AIMCO Properties, L.P.
     may be tendered for redemption at the option of the holder and, upon
     tender, must be acquired by AIMCO, at AIMCO's election, for (x) shares of
     Class A common stock of AIMCO at an exchange ratio of one share of Class A
     common stock of AIMCO for each unit (subject to adjustment) or (y) cash.
                                       29
<PAGE>   36
 
                    SUMMARY PRO FORMA FINANCIAL DATA OF IPT
 
     The following is a summary of certain pro forma financial data of IPT
giving effect to the merger with Angeles Mortgage Investment Trust and the
exchange of the economic rights to assets owned by Insignia Properties, L.P. to
AIMCO Properties, L.P. for limited partnership units in AIMCO Properties, L.P.
as if effected at January 1, 1997, in the case of the pro forma statement of
operations data. The following summary pro forma financial data have been
derived from, and should be read in conjunction with, the historical financial
statements and notes thereto of IPT and Angeles Mortgage Investment Trust
included elsewhere in this Information Statement/Prospectus, and are not
necessarily indicative of the financial position or operating results that would
have occurred had the foregoing transactions actually taken place on September
30, 1998 or January 1, 1997.
 
<TABLE>
<CAPTION>
                                                        PRO FORMA               PRO FORMA
                                                    NINE MONTHS ENDED          YEAR ENDED
                                                    SEPTEMBER 30, 1998      DECEMBER 31, 1997
                                                    ------------------      -----------------
                                                         (IN THOUSANDS, EXCEPT SHARE AND
                                                                 PER SHARE DATA)
<S>                                                 <C>                     <C>
STATEMENT OF OPERATIONS DATA
  Revenues........................................     $    25,033             $    26,584
  Net income before extraordinary item............     $    16,238             $    13,640
  Net income before extraordinary item per share
    of IPT........................................     $      0.70             $      0.59
  Weighted average shares of IPT outstanding......      23,073,958              23,046,558
</TABLE>
 
<TABLE>
<CAPTION>
                                                                    PRO FORMA
                                                                NINE MONTHS ENDED
                                                                SEPTEMBER 30, 1998
                                                                ------------------
                                                                  (IN THOUSANDS)
<S>                                                             <C>
BALANCE SHEET DATA
  Cash......................................................         $ 56,085
  Investments in real estate limited partnerships...........         $183,072
  Total assets..............................................         $708,272
  Long-term debt............................................         $ 59,002
  Minority interest in Insignia Properties, L.P. ...........         $ 58,849
  Shareholders' equity......................................         $195,366
</TABLE>
 
<TABLE>
<CAPTION>
                                                             PRO FORMA            PRO FORMA
                                                         NINE MONTHS ENDED       YEAR ENDED
                                                         SEPTEMBER 30, 1998   DECEMBER 31, 1997
                                                         ------------------   -----------------
                                                         (IN THOUSANDS, EXCEPT PARTNERSHIP AND
                                                                 PROPERTY INFORMATION)
<S>                                                      <C>                  <C>
OTHER DATA
  Cash provided by operating activities.................     $    4,067          $    5,262
  Cash used in investing activities.....................     $     (651)         $  (22,552)
  Cash provided by (used in) financing activities.......     $   17,538          $   43,952
  Funds from operations(b)..............................     $   29,351          $   31,321
  Number of IPT Partnerships............................             42                  29
  Number of properties(a)...............................            197                 150
  Apartment units(a)....................................         48,323              38,369
  Commercial square feet(a).............................      3,026,904           1,667,874
</TABLE>
 
                                       30
<PAGE>   37
 
- -------------------------
 
(a) Includes only the IPT Partnerships.
 
(b) In accordance with the resolution adopted by the Board of Governors of the
    National Association of Real Estate Investment Trusts, funds from operations
    represents net income (loss) (computed in accordance with GAAP), excluding
    gains (or losses) from debt restructuring or sales of property, plus
    depreciation of real property, and after adjustments for unconsolidated
    partnerships and joint ventures. Funds from operations should not be
    considered as an alternative to net income or other measurements under GAAP
    as an indicator of operating performance or to cash flows from operating,
    investing or financing activities as a measure of liquidity. Funds from
    operations does not reflect working capital changes, cash expenditures for
    capital improvements or principal payments on indebtedness. IPT believes
    that funds from operations is helpful to investors as a measure of the
    performance of an equity REIT, because along with cash flows from operating
    activities, investing activities and financing activities, it provides
    investors with an understanding of the ability of IPT to incur and service
    debt and make capital distributions. Funds from operations computed by IPT
    may not be comparable to other similarly titled measures of other REITs.
    Funds from operations is calculated as follows:
 
<TABLE>
<CAPTION>
                                             PRO FORMA
                                            NINE MONTHS           PRO FORMA
                                               ENDED             YEAR ENDED
                                         SEPTEMBER 30, 1998   DECEMBER 31, 1997
                                         ------------------   -----------------
                                                     (IN THOUSANDS)
<S>                                      <C>                  <C>
Income before minority interest, gain on
  sale of property and extraordinary
  items.................................      $16,972              $17,338
Depreciation and amortization...........       12,971               14,802
Minority interest in National Property
  Investors 4's funds from operations...         (592)                (819)
                                              -------              -------
Funds from operations...................      $29,351              $31,321
                                              =======              =======
</TABLE>
 
                                       31
<PAGE>   38
 
                                  RISK FACTORS
 
     In considering the merger, you should be aware that there are various
risks, including those described below. You should consider carefully these risk
factors together with all of the other information included in this Information
Statement/Prospectus and the documents to which we have referred you (see "Where
You Can Find More Information").
 
     The risk factors noted in this section and other factors noted throughout
this Information Statement/Prospectus could cause the actual results of AIMCO or
IPT to differ materially from those contained in any forward-looking statement.
 
RISKS RELATING TO THE MERGER REGARDLESS OF WHETHER YOU RECEIVE CLASS A COMMON
STOCK OF AIMCO IN THE MERGER:
 
  Possible Conflicts of Interest of IPT's Executive Officers and Trustees in the
Merger
 
     In considering the recommendation of the Board of Trustees of IPT, you
should be aware that executive officers and trustees of IPT who negotiated and
approved the original merger agreement, the amended and restated merger
agreement and the Merger Agreement and the IFG/AIMCO merger agreement may have
interests that differ from the interests of IPT shareholders generally. James A.
Aston, Andrew L. Farkas, Frank M. Garrison and Ronald Uretta were senior
executives of IFG at the time the IFG/AIMCO merger agreement was executed. They
also were members of the Board of Trustees of IPT at the time the original
merger agreement was executed and all but Mr. Uretta were members of the Board
of Trustees of IPT at the time the amended and restated merger agreement and the
Merger Agreement were each executed. Messrs. Aston, Farkas and Garrison will
continue to be trustees of IPT until the earlier of the completion of the merger
or two years after termination of the Merger Agreement.
 
     In connection with the merger between IFG and AIMCO and the spinoff of
shares of New Insignia, the following transactions occurred:
 
- - IFG retired vested and unvested stock options and warrants held by each of
  Messrs. Aston, Farkas, Garrison and Uretta at a price equal to the difference
  between the exercise price of such option or warrant and $25 per share. IFG
  paid an aggregate of $20.8 million to these individuals to retire all options
  and warrants held by them; and
 
- - Each of Messrs. Aston, Farkas, Garrison and Uretta executed employment
  agreements with New Insignia. Under these employment agreements as a result of
  the merger between IFG and AIMCO, they received an aggregate payment of
  approximately $11.5 million, which included lump sum payments and bonus
  payments equal to the pro-rata portion, calculated from January 1, 1998
  through October 1, 1998, of the bonuses paid to such individuals in 1997; and
 
- - Upon completion of the merger between IFG and AIMCO, the existing employment
  agreements between IFG and each of Messrs. Aston, Farkas, Garrison and Uretta
  were converted into consulting and non-competition agreements, and were
  assumed by AIMCO, with terms similar to the terms of the prior employment
  agreements. The aggregate present value of the payments under such consulting
  agreements was approximately $4.9 million as of August 10, 1998. In connection
  with Mr. Farkas' consulting agreement with AIMCO, AIMCO agreed to make all
  payments under the lease for Mr. Farkas' office in New York, New York through
  October 31, 1999. Mr. Farkas has exclusive use of the office through such
  time; and
 
                                       32
<PAGE>   39
 
- - Loans made by IFG to each of Messrs. Aston, Farkas, Garrison and Uretta in the
  aggregate principal amount of $3 million with an interest rate of 6.5% per
  annum will be forgiven, over a five-year period beginning January 1, 1998, in
  consideration for covenants made by these individuals in their consulting and
  non-competition agreements assumed by AIMCO in the merger between IFG and
  AIMCO; and
 
- - Mr. Farkas, IFG, a trust for Mr. Farkas' children and its trustees entered
  into an indemnification agreement. AIMCO (as successor to IFG) has agreed to
  indemnify Mr. Farkas, the trust and the trustees thereof for all losses that
  they may incur from third party claims or derivative actions that may arise
  out of the execution, performance or failure to perform certain agreements
  entered into by them in connection with the merger between IFG and AIMCO; and
 
- - Messrs. Aston, Farkas, Garrison and Uretta, as stockholders of IFG, received
  an aggregate of approximately 775,500 shares (including approximately 68,800
  shares which are subject to vesting restrictions) of Class E Cumulative
  Convertible Preferred Stock of AIMCO upon completion of the merger between IFG
  and AIMCO. On January 15, 1999, these shares were converted into an equal
  number of shares of Class A common stock of AIMCO following the payment to the
  holders of Class E Preferred Stock of a one-time special dividend of
  approximately $4.3 million.
 
     Following the execution of the original merger agreement, the following
transactions occurred:
 
- - An aggregate of 20,000 restricted shares of IPT granted to two former
  executive officers of IPT became vested pursuant to retention agreements
  entered into between such officers and IPT, and IPT paid an aggregate of
  $81,250 to retire options to purchase an aggregate of 25,000 shares of IPT
  held by the same two former senior executive officers; and
 
- - IPT entered into consulting agreements with each of Messrs. Aston, Farkas,
  Garrison and Uretta, pursuant to which these individuals have become
  consultants to IPT for a fee of $1,000 per month until February 2003.
 
     As of January 1, 1999 Messrs. Aston, Farkas, Garrison, Herrmann, Eckstein
(each current trustees of IPT) and Uretta (a former trustee of IPT) owned an
aggregate of 1,312,260 shares of IPT, of which 369,489 were unvested restricted
shares of IPT. Upon completion of the merger, the restricted shares owned by
Messrs. Aston, Farkas, Garrison and Uretta which remain unvested will convert
into the number of restricted shares of Class A common stock of AIMCO equal to
$13.28 divided by the AIMCO Exchange Value regardless of AIMCO's election of the
form of consideration to be paid in the merger. The terms and vesting of the
restricted shares will not be affected by the merger. In connection with the
shareholder meeting, the restricted shares owned by Messrs. Herrmann and
Eckstein will vest and be treated like all other outstanding shares of IPT.
 
  Consequences to IPT, IPLP and You if the Merger is Not Completed
 
     AIMCO Properties, L.P. holds approximately 30% of the outstanding limited
partnership interests in Insignia Properties L.P., IPT's operating partnership.
Following the execution of the original merger agreement, Insignia Properties,
L.P. and AIMCO Properties, L.P. entered into an agreement, pursuant to which
Insignia Properties, L.P. assigned the economic rights to a substantial portion
of its assets to AIMCO Properties, L.P., and AIMCO Properties, L.P. assumed all
of the obligations of Insignia Proper-
 
                                       33
<PAGE>   40
 
ties, L.P. related to such assets in exchange for approximately 10.2 million
units of limited partnership interest in AIMCO Properties, L.P. This assignment
was required by the IFG/AIMCO merger agreement and completed to avoid potential
adverse tax consequences to AIMCO. In addition, on October 16, 1998, Insignia
Properties, L.P. provided approximately $17.1 million to AIMCO Properties, L.P.
to fund subsidiary limited partnerships formed to acquire seven multifamily
residential properties in exchange for economic rights to the limited
partnership units in such subsidiaries. If the Merger Agreement is terminated,
such transactions will be unwound in an effort to put the parties in the same
position they were in immediately before the execution of the original merger
agreement. See "Special Factors to Consider -- AIMCO's Relationship with IPLP."
In addition, any assets, equity interests or indebtedness of an entity that (i)
is controlled by IPT and (ii) that is acquired by AIMCO, or any subsidiary that
AIMCO controls, prior to the termination of the Merger Agreement also will be
transferred to IPT or Insignia Properties, L.P. under such unwind provisions.
For example, if AIMCO successfully makes tender offers for limited partnership
interests in entities controlled by IPT or Insignia Properties, L.P. and the
Merger Agreement is subsequently terminated, the limited partnership interests
acquired by AIMCO would be transferred to Insignia Properties, L.P. You should
consider, among other things, that if these provisions are triggered (1) AIMCO
will have managed IPT's business during the pendency of the Merger Agreement,
and (2) we cannot assure you that AIMCO will have maintained or grown the value
of the IPT or Insignia Properties, L.P. assets or that IPT will be able to
reconstitute its former business. Additionally, although AIMCO will lose control
of the Board of Trustees of IPT for up to two years after the Merger Agreement
is terminated, AIMCO would continue to hold a majority of the outstanding shares
of IPT. Therefore AIMCO would be able to prevent or restrict fundamental
corporate transactions involving IPT and its business, which could deprive you
of the opportunity to participate in potentially value-enhancing transactions.
 
RISKS RELATING TO THE MERGER IF YOU RECEIVE CLASS A COMMON STOCK OF AIMCO IN THE
MERGER:
 
  Risks Associated with AIMCO's Integration of IPT and IFG
 
     AIMCO's acquisition of IPT following its recent acquisition of IFG involves
certain specific risks and uncertainties. The integration of IFG's and IPT's
businesses with AIMCO may place a significant burden on AIMCO's management. Such
risks include:
 
     - loss of key personnel and clients;
 
     - difficulty associated with assimilating IPT's and IFG's personnel,
       operations and systems;
 
     - disruption of AIMCO's ongoing business and acquisition strategy;
 
     - difficulty in maintaining AIMCO's uniform standards, controls, procedures
       and policies; and
 
     - possible impairment of AIMCO's reputation.
 
     We cannot assure you that the anticipated benefits from this merger or the
merger between IFG and AIMCO will be realized or that AIMCO will be able to
integrate the businesses successfully. Failure of AIMCO to integrate the
businesses successfully could have a material adverse effect on AIMCO.
 
                                       34
<PAGE>   41
 
  Market Fluctuations
 
     The number of shares of Class A common stock of AIMCO which you may receive
in the merger will depend upon the market price of Class A common stock of
AIMCO, which is subject to fluctuation. You are urged to obtain current market
quotations for the Class A common stock of AIMCO.
 
  Risks of Acquisition and Development Activities
 
     Generally. The selective acquisition, development and expansion of
apartment properties is one component of AIMCO's growth strategy. However, AIMCO
can make no assurance as to its ability to complete transactions in the future.
Although AIMCO seeks to acquire, develop and expand properties only when such
activities are accretive on a per share basis, such transactions may fail to
perform in accordance with AIMCO's expectations. When AIMCO develops or expands
properties, it is subject to the risks that:
 
     - costs may exceed original estimates;
 
     - projected occupancy and rental rates at a property may not be realized;
 
     - financing may not be available on favorable terms;
 
     - construction and lease-up may not be completed on schedule; and
 
     - it may experience difficulty or delays in obtaining necessary zoning,
       land-use, building, occupancy, and other governmental permits and
       authorizations.
 
     AIMCO May Have Difficulty Managing its Rapid Growth. AIMCO has grown
rapidly. Since its initial public offering in July 1994, AIMCO has completed
numerous acquisition transactions, expanding its portfolio of owned or managed
properties from 132 apartment properties with 29,343 units to 2,147 apartment
properties with 379,363 units as of December 31, 1998. These acquisitions have
included purchases of properties and interests in entities that own or manage
properties, as well as corporate mergers. AIMCO's recent merger with IFG is its
largest acquisition so far. AIMCO's ability to integrate acquired businesses and
properties successfully depends on its ability to:
 
     - attract and retain qualified personnel;
 
     - integrate the personnel and operations of the acquired businesses;
 
     - maintain uniform standards, controls, procedures and policies; and
 
     - maintain adequate accounting and information systems.
 
     AIMCO can provide no assurance that it will be able to accomplish these
goals and successfully integrate any acquired businesses or properties. If AIMCO
fails to successfully integrate such businesses, its results of operations could
be adversely affected in a material way.
 
     Litigation Associated with Partnership Acquisitions
 
     AIMCO is a party to various legal actions resulting from its operating
activities. These actions are routine litigation and administrative proceedings
arising in the ordinary course of business, some of which are covered by
liability insurance, and none of which are expected to have a material adverse
effect on the consolidated financial condition or results of operations of AIMCO
and its subsidiaries, taken as a whole.
 
                                       35
<PAGE>   42
 
     In connection with AIMCO's acquisition of interests in limited partnerships
that own or manage apartments properties, through tender offers or otherwise,
from time to time, AIMCO is subject to legal actions arising from such
activities, including allegations that such activities may involve breaches of
fiduciary duties to the limited partners of such partnerships or may violate the
relevant partnership agreements. AIMCO's policy is to fulfill its fiduciary
obligations to its limited partners and with the partnership agreements to which
it is a party, and does not expect such claims to have a material adverse effect
on the consolidated financial conditions or results of operations of AIMCO and
its subsidiaries taken as a whole.
 
  Risks Associated With Debt Financing
 
     AIMCO's strategy is generally to incur debt to increase the return on its
equity while maintaining interest coverage ratios that AIMCO believes are
acceptable. AIMCO seeks to maintain a ratio of free cash flow to combined
interest expense and preferred stock dividends of between 2:1 and 3:1. However,
the Board of Directors of AIMCO could change this strategy at any time and
increase AIMCO's leverage. AIMCO's organizational documents do not limit the
amount of debt that it may incur, and it has significant amounts of debt
outstanding. Payments of principal and interest may leave AIMCO with
insufficient cash resources to operate its properties or pay distributions
required to be paid in order to maintain its qualification as a REIT. AIMCO is
also subject to the risk that its cash flow from operations will be insufficient
to make required payments of principal and interest, and the risk that existing
indebtedness may not be refinanced or that the terms of any refinancing will not
be as favorable as the terms of existing indebtedness. If AIMCO fails to make
required payments of principal and interest on any debt, its lenders could
foreclose on the properties securing such debt with a consequent loss of income
and asset value to AIMCO. As of September 30, 1998, 95% of the properties that
AIMCO owned or controlled and 41% of its assets were encumbered by debt. On a
pro forma basis, giving effect to the merger with IFG, as of September 30, 1998,
AIMCO had $1,627.8 million of indebtedness outstanding on a consolidated basis,
of which $1,277 million was secured.
 
  Moody's Revision of AIMCO's Outlook of Ratings to Negative
 
     On October 1, 1998, Moody's Investors Service revised its outlook for the
ratings of AIMCO from stable to negative to reflect its concerns surrounding
AIMCO's ability to successfully implement its financial strategy while
maintaining a prudent capital structure as a result of the more difficult
general capital market conditions. Moody's Investors Service noted that AIMCO's
access to the public markets may prove challenging in light of the volatility in
both the equity and capital markets for REITs and assigned a "ba3" rating to a
class of preferred stock proposed to be issued by AIMCO. Moody's Investors
Service indicated that its rating reflects AIMCO's increasingly leveraged
profile, including high levels of secured debt and preferred stock, limited
financial flexibility and integration risks resulting from the merger with IFG.
Moody's Investors Service also noted AIMCO's high level of encumbered properties
and material investments in loans to highly leveraged partnerships in which
AIMCO owns a general partnership interest. At the same time, each of Moody's
Investors Service, Standard & Poors Ratings Group, Inc., and Duff & Phelps
Corporation confirmed its existing rating on AIMCO's existing preferred stock
and senior debt.
 
                                       36
<PAGE>   43
 
  Increases in Interest Rates May Increase AIMCO's Interest Expense
 
     A substantial portion of AIMCO's debt is and may in the future be subject
to variable interest rates. An increase in interest rates could increase AIMCO's
interest expense and adversely affect AIMCO's cash flow and ability to service
its indebtedness and make distributions.
 
  Risks of Interest Rate Hedging Arrangements
 
     From time to time, in anticipation of refinancing debt, AIMCO enters into
agreements to reduce the risks associated with increases in short term interest
rates. Although these agreements provide AIMCO with some protection against
rising interest rates, these agreements also reduce the benefits to AIMCO when
interest rates decline. These agreements involve the following risks:
 
     - interest rate movements during the term of the agreement may result in a
       loss to AIMCO;
 
     - AIMCO may be exposed to losses if the hedge is not indexed to the same
       rate as the debt anticipated to be incurred; and
 
     - if the counterparty to the agreement fails to pay, AIMCO may incur a
       loss.
 
  Covenant Restrictions May Limit AIMCO's Ability to Make Payments to Its
  Investors
 
     Some of AIMCO's debt and other securities contain covenants that restrict
AIMCO's ability to make distributions or other payments to its investors unless
certain financial tests or other criteria are satisfied. In some cases, AIMCO's
subsidiaries are subject to similar provisions, which may restrict their ability
to make distributions to AIMCO. AIMCO's primary credit facility provides that it
may make distributions to its investors during any 12-month period in an
aggregate amount that does not exceed the greater of 80% of its funds from
operations for such period or such amount as may be necessary to maintain its
REIT status. This credit facility prohibits all distributions if certain
financial ratios and tests are not satisfied. AIMCO's outstanding classes of
preferred stock prohibit the payment of dividends on the Class A common stock of
AIMCO if AIMCO fails to pay the dividends to which the holders of the preferred
stock are entitled.
 
  AIMCO Depends on Distributions and Other Payments from Its Subsidiaries
 
     All of AIMCO's properties are owned, and all of its operations are
conducted, by AIMCO Properties, L.P. and AIMCO's other subsidiaries. As a
result, AIMCO depends on distributions and other payments from subsidiaries in
order to satisfy its financial obligations and make payments to its investors.
The ability of AIMCO's subsidiaries to make such distributions and other
payments is dependent upon their earnings and may be subject to statutory or
contractual limitations. As an equity investor in AIMCO's subsidiaries, AIMCO's
right to receive assets upon their liquidation or reorganization will be
effectively subordinated to the claims of their creditors. To the extent that
AIMCO is recognized as a creditor of such subsidiaries, its claims would still
be subordinated to any security interest in or other lien on their assets and to
any of their debt or other obligations that are senior to it.
 
                                       37
<PAGE>   44
 
  Real Estate Investment Risks
 
     AIMCO's ability to make payments to its investors depends on its ability to
generate funds from operations in excess of required debt payments and capital
expenditure requirements. Funds from operations and the value of AIMCO's
properties may be adversely affected by events or conditions which are beyond
its control. Such events or conditions could include:
 
     - the general economic climate;
 
     - competition from other apartment communities and alternative housing;
 
     - local conditions, such as an increase in unemployment or an oversupply of
       apartments, that might adversely affect apartment occupancy or rental
       rates;
 
     - increases in operating costs (including real estate taxes) due to
       inflation and other factors, which may not necessarily be offset by
       increased rents;
 
     - changes in governmental regulations and the related costs of compliance;
 
     - changes in tax laws and housing laws, including the enactment of rent
       control laws or other laws regulating multifamily housing;
 
     - changes in interest rate levels and the availability of financing; and
 
     - the relative illiquidity of real estate investments.
 
  Possible Environmental Liabilities
 
     Various Federal, state and local laws subject property owners or operators
to liability for the costs of removal or remediation of certain hazardous
substances released on a property. Such laws often impose liability without
regard to whether the owner or operator knew of, or was responsible for, the
release of the hazardous substances. The presence of, or the failure to properly
remediate, hazardous substances may adversely affect occupancy at contaminated
apartment communities and AIMCO's ability to sell or borrow against contaminated
properties. In addition to the costs associated with investigation and
remediation actions brought by governmental agencies, the presence of hazardous
wastes on a property could result in personal injury or similar claims by
private plaintiffs. Various laws also impose liability for the cost of removal
or remediation of hazardous substances at the disposal or treatment facility.
Anyone who arranges for the disposal or treatment of hazardous or toxic
substances is potentially liable under such laws. These laws often impose
liability whether or not the person arranging for the disposal ever owned or
operated the disposal facility.
 
  Laws Benefitting Disabled Persons May Result in Unanticipated Expenses
 
     Under the Americans with Disabilities Act of 1990, all places of public
accommodation are required to meet certain Federal requirements related to
access and use by disabled persons. These requirements became effective in 1992.
A number of additional Federal, state and local laws exist which also may
require modifications to AIMCO's properties, or restrict certain further
renovations of the properties, with respect to access to the properties by
disabled persons. For example, the Fair Housing Amendments Act of 1988 requires
apartment properties first occupied after March 13, 1990 to be accessible to the
handicapped. Noncompliance with these regulations could result in the imposition
of
 
                                       38
<PAGE>   45
 
fines or an award of damages to private litigants and also could result in an
order to correct any non-complying feature, which could result in substantial
capital expenditures. Although AIMCO believes that its properties are
substantially in compliance with present requirements, it may incur
unanticipated expenses to comply with such regulations.
 
  Risks Relating to Regulation of Affordable Housing
 
     A significant number of affordable units included as assets of AIMCO
Properties, L.P. are subject to regulation by HUD. Under its regulations, HUD
reserves the right to approve the owner and the manager of HUD-insured and
HUD-assisted properties, as well as their "principals" (e.g., general partners,
shareholders with a 10% or greater interest, officers and directors) in
connection with the acquisition of a property or the award of a management
contract. This approval process is commonly referred to as "2530 Clearance." HUD
monitors the performance of properties with HUD-insured mortgage loans. HUD also
monitors compliance with applicable regulations, and takes performance and
compliance into account in approving the acquisition of management of
HUD-assisted properties. In the event of instances of unsatisfactory performance
or regulatory violations, the HUD office with jurisdiction over the applicable
property has the authority to enter a "flag" into the computerized 2530
Clearance system. If one or more flags have been entered, a decision whether to
grant 2530 Clearance is then subject to review by HUD's Multifamily
Participation Review Committee in Washington, D.C. (the "2530 Committee"). As a
result of certain mortgage defaults and unsatisfactory ratings received by NHP
Incorporated (a company acquired by AIMCO in December 1997) in years prior to
its acquisition by AIMCO, HUD believes that the 2530 Committee must review any
application for 2530 Clearance filed by AIMCO. On December 18, 1998, AIMCO
received approval of fifty 2530 applications and had no unresolved flags in the
2530 system as of December 31, 1998.
 
     In October 1997, NHP received a subpoena from the HUD Inspector General,
which requested documents relating to any arrangement whereby NHP Incorporated
or any of its affiliates provides or has provided compensation to owners of HUD
multifamily projects in exchange for or in connection with property management
of a HUD project. AIMCO believes that other owners and managers of HUD projects
have received similar subpoenas. Documents provided by AIMCO to HUD relating to
certain of AIMCO's acquisitions of property management rights for HUD projects
may be responsive to the subpoena. AIMCO is in the process of complying with the
subpoena and has provided certain documents to the Inspector General, without
conceding that they are responsive to the subpoena. AIMCO believes that its
operations are in compliance, in all material respects, with all laws, rules and
regulations relating to HUD-assisted or HUD-insured properties. Effective
February 13, 1998, counsel for AIMCO and the U.S. Attorney for the Northern
District of California entered into a Tolling Agreement related to certain civil
claims the government may have against AIMCO. Although no action has been
initiated against AIMCO or, to AIMCO's knowledge, any owner of a HUD property
managed by AIMCO, if any such action is taken in the future, it could ultimately
affect existing arrangements with respect to HUD projects, affect AIMCO's
ability to receive 2530 clearances or otherwise have a material adverse effect
on AIMCO's results of operations.
 
     HUD also has the authority to suspend or deny property owners and managers
from participation in HUD programs with respect to additional assistance within
a geographic region through imposition of a Limited Denial of Participation by
any HUD office or
 
                                       39
<PAGE>   46
 
nationwide for violations of HUD regulatory requirements. In June 1997, the St.
Louis HUD field office issued a Limited Denial of Participation to NHP
Incorporated as a result of a physical inspection and mortgage default at one
property owned and managed by NHP Incorporated-related companies. Although the
Limited Denial of Participation expired by its terms in June 1998, AIMCO entered
into a settlement agreement with HUD which includes aggregate payments to HUD of
approximately $533,000 and resolution of all issues involving four properties in
the St. Louis metropolitan area. Because a Limited Denial of Participation is
prospective, existing HUD agreements were not, and are not affected.
 
     AIMCO believes that the national office will continue to apply the
clearance process to large management portfolios such as AIMCO's with discretion
and flexibility. While there can be no assurance, AIMCO believes that the
unsatisfactory reviews and the mortgage defaults will not have a material impact
on its results of operations or financial condition. If HUD were to disapprove
AIMCO as property manager for one or more affordable properties, AIMCO's ability
to obtain property management revenues from new affordable properties may be
impaired.
 
  The Loss of Property Management Contracts Would Reduce AIMCO's Revenues
 
     AIMCO manages some properties owned by third parties. For the year ended
December 31, 1997, AIMCO derived approximately 2% of its gross revenue from
management of properties owned by third parties. During the same period, IFG
derived approximately 15% of its gross revenue from management of properties
owned by third parties. AIMCO may suffer a loss of revenue if it loses its right
to manage these properties or if the rental revenues upon which its management
fees are based decline. In general, management contracts may be terminated or
otherwise lost as a result of:
 
     - a disposition of the property by the owner in the ordinary course or as a
       result of financial distress of the property owner;
 
     - the property owner's determination that AIMCO's management of the
       property is unsatisfactory;
 
     - willful misconduct, gross negligence or other conduct that constitutes
       grounds for termination; or
 
     - with respect to certain affordable properties, termination of such
       contracts by HUD or state housing finance agencies, generally at their
       discretion.
 
  Dependence on Certain Executive Officers
 
     Although AIMCO has entered into employment agreements with its Chairman and
Chief Executive Officer, Terry Considine, its President and Vice-Chairman, Peter
K. Kompaniez, and its Executive Vice President, Steven D. Ira, the loss of any
of their services could have a material adverse effect on AIMCO.
 
  Possible Conflicts of Interest; Transactions with Affiliates
 
     AIMCO has been, and continues to be, involved in various transactions with
a number of its affiliates, including executive officers, directors and entities
in which they own interests. For example, in order to satisfy certain REIT
requirements, Messrs. Considine and Kompaniez directly or indirectly control the
management companies which
 
                                       40
<PAGE>   47
 
manage properties for third parties and affiliates. Although AIMCO owns a 95%
non-voting interest in these management companies, AIMCO has no control over
them or their operations. As a result, the management companies could implement
business decisions or policies that are not in AIMCO's best interests. AIMCO has
adopted certain policies designed to minimize or eliminate the conflicts of
interest inherent in these transactions, including a requirement that a majority
of AIMCO's disinterested directors approve certain transactions with affiliates.
However, there can be no assurance that these policies will be successful in
eliminating the influence of such conflicts. Furthermore, such policies are
subject to change without the approval of AIMCO's stockholders.
 
  Tax Risks
 
     Adverse Consequences of Failure to Qualify as a REIT. Although AIMCO
believes that it operates in a manner that enables it to meet the requirements
for qualification as a REIT for Federal income tax purposes, it does not plan to
request a ruling from the Internal Revenue Service that it qualifies as a REIT.
AIMCO has, however, received an opinion from the law firm of Skadden, Arps,
Slate, Meagher & Flom LLP to the effect that, beginning with its initial taxable
year ended December 31, 1994, it was organized and has operated in conformity
with the requirements for qualification as a REIT under the Internal Revenue
Code. The opinion is expressed as of its date and Skadden, Arps, Slate, Meagher
& Flom LLP has no obligation to advise AIMCO of any change in applicable law or
of any change in matters stated, represented on assumed after the date of such
opinion.
 
     You should be aware that opinions of counsel are not binding on the
Internal Revenue Service or any court. AIMCO's opinion of counsel is based upon
certain representations and covenants made by AIMCO regarding the past, present
and future conduct of its business operations. In addition, AIMCO's opinion of
counsel assumes the qualification of IPT as a REIT and relies upon the opinion
of Akin, Gump, Strauss, Hauer & Feld L.L.P., tax counsel to IPT, in this regard.
IPT's failure to qualify as a REIT would adversely affect AIMCO's qualification
as a REIT. Finally, AIMCO's opinion of counsel is conditioned on, and AIMCO's
continued qualification as a REIT will depend on, its ability to meet, through
actual annual operating results, the various REIT qualification tests, the
results of which will not be reviewed by Skadden Arps, Slate Meagher & Flom LLP.
No assurance can be given that the actual results of AIMCO's operations for any
taxable year will satisfy such requirement. Such requirements are discussed in
more detail under the heading "Federal Income Taxation of AIMCO and AIMCO
Stockholders -- Requirements for Qualification."
 
     If AIMCO fails to qualify as a REIT, it would not be allowed a deduction
for dividends paid to its stockholders in computing its taxable income and it
would be subject to Federal income tax at regular corporate rates. AIMCO also
could be subject to the Federal alternative minimum tax. Unless AIMCO is
entitled to relief under the tax law, it could not elect to be taxed as a REIT
for four years following the year during which it was disqualified. Therefore,
if AIMCO loses its REIT status, the funds available for payment to its investors
and net income would be reduced substantially for each of the years involved.
See "Federal Income Taxation of AIMCO and AIMCO Stockholders -- Taxation of
AIMCO." As a result of the additional tax liability, AIMCO might need to borrow
funds or liquidate certain investments on terms that may be disadvantageous to
AIMCO in order to pay the applicable tax, and AIMCO would not be compelled to
make
 
                                       41
<PAGE>   48
 
distributions under the Internal Revenue Code. Also, if AIMCO fails to qualify
as a REIT, (i) it would be obligated to repurchase 750,000 shares of its
preferred stock at a price of $105 per share, plus accrued and unpaid dividends
to the date of repurchase, and (ii) it would be in default under its primary
credit facilities and certain other loan documents. See "Federal Income Taxation
of AIMCO and AIMCO Stockholders -- Taxation of AIMCO." Although AIMCO currently
intends to operate in a manner designed to qualify as a REIT, future economic,
market, legal, tax or other considerations may cause AIMCO to fail to qualify as
a REIT or the Board of Directors of AIMCO may determine to revoke its REIT
election.
 
     If AIMCO acquires a corporation that is not a REIT (such as IFG or IPT, if
it fails to qualify as a REIT), AIMCO will qualify as a REIT only if it
distributes all of the acquired corporation's "earnings and profits" by the end
of the year. In connection with the merger between IFG and AIMCO, AIMCO retained
independent certified public accountants to review the determination of IFG's
earnings and profits for purposes of this requirement. The determination of
earnings and profits is difficult and requires the resolution of technical tax
issues. In addition, the Internal Revenue Service can consider all taxable years
as open for review for purposes of determining the amount of earnings and
profits. AIMCO's failure to distribute an amount equal to IFG's (or IPT's, if
IPT fails to qualify as a REIT) earnings and profits on or before December 31,
1998, would result in AIMCO's failure to qualify as a REIT.
 
     Effect of Distribution Requirements. As a REIT, AIMCO is subject to annual
distribution requirements that limit the amount of cash it has available for
other business purposes, including amounts to fund its growth. See "Federal
Income Taxation of AIMCO and AIMCO Stockholders -- Annual Distribution
Requirements."
 
     Possible Legislative or Other Actions Affecting REITs. The rules dealing
with Federal income taxation are constantly under review by persons involved in
the legislative process and by the Internal Revenue Service and the U.S.
Treasury Department. Changes to the tax law (which changes may have retroactive
application) could adversely affect AIMCO and its investors. It cannot be
predicted whether, when, in what forms, or with what effective dates, the tax
laws applicable to AIMCO or its investors will be changed.
 
     Other Tax Liabilities. Even if AIMCO qualifies as a REIT, AIMCO and its
subsidiaries may be subject to certain Federal, state and local taxes on their
income and property that could reduce operating cash flow.
 
  Possible Adverse Consequences of Limits on Ownership of Shares
 
     AIMCO's charter limits ownership of common stock of AIMCO by any single
shareholder to 8.7% of the outstanding shares (or 15% in the case of certain
pension trusts, registered investment companies and Mr. Considine). The charter
also prohibits anyone from buying shares if the purchase would result in AIMCO
losing its REIT status. This could happen if a transaction results in fewer than
100 persons owning all of AIMCO's shares or in five or fewer persons, applying
certain attribution rules of the Internal Revenue Code, owning 50% or more of
AIMCO's common stock. If any person acquires shares in
 
                                       42
<PAGE>   49
 
excess of the ownership limit or in violation of the ownership requirements of
the Internal Revenue Code for REITs:
 
     - the transfer will be considered null and void;
 
     - AIMCO will not reflect the transaction on its books;
 
     - AIMCO may institute legal action to enjoin the transaction;
 
     - AIMCO may demand repayment of any dividends received by the affected
       person on those shares;
 
     - AIMCO may redeem the shares at their then current market price;
 
     - the affected person will not have any voting rights for those shares; and
 
     - the shares (and all voting and dividend rights of the shares) will be
       held in trust for the benefit of one or more charitable organizations
       designated by AIMCO.
 
     AIMCO may purchase the shares held in trust at a price equal to the lesser
of the price paid by the transferee of the shares or the then current market
price. If the trust transfers any of the shares, the affected person will
receive the lesser of the price he or she paid for the shares or the then
current market price. An individual who acquires shares that violate the
ownership rules discussed above bears the risk that:
 
     - he or she may lose control over the power to dispose of the shares;
 
     - he or she may not recognize profit from the sale of such shares if the
       market price of the shares increases;
 
     - he or she may be required to recognize a loss from the sale of such
       shares if the market price decreases; and
 
     - he or she may be required to repay any distributions received as a result
       of his or her ownership of such shares.
 
  AIMCO's Charter and Maryland Law May Limit the Ability of a Third Party to
  Acquire Control of AIMCO
 
     Ownership Limit. The 8.7% ownership limit discussed above may have the
effect of precluding the acquisition of control of AIMCO by a third party
without the consent of the Board of Directors of AIMCO.
 
     Preferred Stock. AIMCO's charter authorizes its Board of Directors to issue
up to 510,750,000 shares of stock. As of December 31, 1998, 484,027,500 shares
were classified as Class A common stock, 262,500 shares were classified as Class
B common stock and 26,460,000 were classified as preferred stock. Under AIMCO's
charter, the Board of Directors of AIMCO has the authority to classify and
reclassify any of AIMCO's unissued shares of stock into shares of preferred
stock with such preferences, rights, powers and restrictions as the Board of
Directors of AIMCO may determine. The authorization and issuance of preferred
stock could have the effect of delaying or preventing someone from taking
control of AIMCO, even if a change in control were in AIMCO's stockholders' best
interests.
 
     Maryland Business Combination and Control Share Acquisition Statutes. As a
Maryland corporation, AIMCO is subject to various Maryland laws which may have
the effect of discouraging offers to acquire AIMCO and of increasing the
difficulty of consummating any such offers, even if the acquisition of AIMCO
would be in its
 
                                       43
<PAGE>   50
 
stockholders' best interests. Subtitle 6 of Title 3 of the Maryland General
Corporation Law restricts mergers and other business combination transactions
between a Maryland corporation, such as AIMCO, and any person who beneficially
owns 10% or more of the voting power of the corporation's shares or an affiliate
or associate (as defined in the Maryland General Corporation Law) of the
corporation who, at any time within the two-year period prior to the date in
question, was the beneficial owner of 10% or more of the then-outstanding voting
stock of the corporation, or an affiliate thereof, without the approval or
exemption of the Board of Directors of AIMCO prior to the acquisition of such
beneficial ownership. Any such business combination transaction could not be
completed until five years after the person or an affiliate thereof acquired
such voting power, and then only with the approval of stockholders representing
80% of all votes entitled to be cast and 66 2/3% of the votes entitled to be
cast excluding the interested stockholder, unless, among other conditions, the
stockholders receive a minimum price (as defined in the Maryland General
Corporation Law) for their shares and the consideration is received in cash or
in the same form as previously paid by the interested stockholder for its shares
of stock. Subtitle 7 of Title 3 of the Maryland General Corporation Law also
provides that a person who acquires shares of stock that entitles such person to
exercise or direct the voting power in electing directors within certain ranges
at or above 20% of all voting power will have no voting rights for their shares
over the 20% threshold unless approved by a vote of 66 2/3% of the shares
entitled to be cast on the matter, excluding shares of stock owned by the
acquiror, by officers or by directors who are employees of the corporation, or
unless approved or exempted prior to the acquisition pursuant to the terms of
the statute.
 
  Year 2000 Readiness
 
     The Year 2000 Issue is the result of computer programs being written using
two digits rather than four digits to define the applicable year. Any of AIMCO's
computer programs or hardware that have date-sensitive software or embedded
chips may recognize a date using "00" as the year 1900 rather than the year
2000. This could result in a system failure or miscalculations causing
disruptions of operations, including, among other things, a temporary inability
to process transactions, send invoices, or engage in similar normal business
activities. AIMCO has determined that it will be required to modify or replace
significant portions of its software and certain hardware so that those systems
will properly utilize dates beyond December 31, 1999. AIMCO believes that with
modifications or replacements of existing software and certain hardware, the
Year 2000 Issue can be mitigated. However, if such modifications and
replacements are not made, or are not completed timely, the Year 2000 Issue
could have a material impact on AIMCO's operations.
 
     AIMCO's plan to resolve the Year 2000 Issue involves the following four
phases: assessment, remediation, testing, and implementation. As of September
30, 1998, AIMCO has fully completed its assessment of all information systems
that could be significantly affected by the Year 2000, and has begun the
remediation, testing and implementation phases on both hardware and software
systems. AIMCO is continuing its assessments with respect to embedded systems.
As of September 30, 1998, the total cost of AIMCO's Year 2000 project was
estimated at $3.4 million and is being funded through operating cash flows. As
of September 30, 1998, AIMCO has spent approximately $2.8 million ($0.4 million
expensed and $2.4 million capitalized for new systems and equipment)
 
                                       44
<PAGE>   51
 
related to all phases of the Year 2000 project. Of the total remaining project
costs, approximately $0.4 million is attributable to the purchase of new
software and operating equipment, which will be capitalized. The remaining $0.2
million relates to repair of hardware and software and will be expensed as
incurred.
 
     AIMCO has not yet completed all necessary phases of the Year 2000 program.
If AIMCO does not complete any additional phases, certain worst case scenarios
could occur. The worst case scenarios include elevators, security and
heating-ventilation-air conditioning systems that read incorrect dates and
operate with incorrect schedules (e.g., elevators will operate on Monday as if
it were Sunday). Although such a change would be annoying to residents, it is
not business critical. In addition, disruptions in the economy generally
resulting from the Year 2000 Issue could also materially adversely affect AIMCO.
AIMCO could be subject to litigation for computer systems failure, for example,
equipment shutdown or failure to properly date business records. The amount of
potential liability and lost revenue cannot be reasonably estimated at this
time.
 
                                       45
<PAGE>   52
 
                   INFORMATION CONCERNING THE SPECIAL MEETING
 
PURPOSE, TIME AND PLACE
 
     IPT is furnishing this Information Statement/Prospectus to its shareholders
in connection with a special meeting of shareholders of IPT (including any
adjournment or postponement thereof, the "Special Meeting") to be held on
February 26, 1999, beginning at 11:00 a.m., local time, at 55 Beattie Place,
12th Floor, Greenville, South Carolina 29602. The purpose of the Special Meeting
is to consider and vote upon a proposal to approve and adopt the acquisition by
AIMCO of all of the common shares of beneficial interest, par value $.01 per
share, of IPT (the "IPT Common Shares"), not already owned by AIMCO through a
merger of IPT with and into AIMCO (the "Merger"), the Second Amended and
Restated Agreement and Plan of Merger, dated as of January 22, 1999 (the "Merger
Agreement"), by and between AIMCO and IPT and the transactions contemplated
thereby.
 
RECORD DATE; QUORUM; VOTE REQUIRED
 
     The Board of Trustees of IPT (the "IPT Board") has selected December 23,
1998 (the "Record Date") as the record date for the Special Meeting. Only
holders of record of IPT Common Shares at the close of business on the Record
Date are entitled to notice of, and to vote at, the Special Meeting.
 
     On the Record Date, 23,484,538 IPT Common Shares were issued and
outstanding, held by approximately 705 holders of record. Each IPT Common Share
entitles the holder thereof to one vote on each matter submitted for shareholder
approval.
 
     The presence, in person or by proxy, of at least a majority of the issued
and outstanding IPT Common Shares entitled to vote is necessary to constitute a
quorum at the Special Meeting. If you cast your vote to abstain on the proposal
to be acted upon at the Special Meeting, your shares will be treated as shares
that are present and entitled to vote for purposes of determining the presence
of a quorum at the Special Meeting and have the effect of a vote against the
Merger, the Merger Agreement and the transactions contemplated thereby. If you
hold your IPT Common Shares in "street name," then a broker or nominee is the
registered owner. If you do not instruct your broker or nominee how to vote at
the Special Meeting, then your shares will not be counted as present for
purposes of determining a quorum at the Special Meeting and will have the effect
of a vote against the Merger, the Merger Agreement and the transactions
contemplated thereby.
 
     The approval of the Merger, the Merger Agreement and the transactions
contemplated thereby requires the affirmative vote of the holders of a majority
of the outstanding IPT Common Shares. As a result of the merger of IFG with and
into AIMCO (the "IFG Merger"), AIMCO owns the IPT Common Shares formerly owned
by IFG and, as of October 1, 1998, AIMCO controlled IPT. On the Record Date,
AIMCO owned 12,033,556 IPT Common Shares, or approximately 51% of the
outstanding IPT Common Shares. AIMCO Properties L.P., a Delaware limited
partnership (the "AIMCO Operating Partnership"), owns limited partnership units
("IPLP OP Units") in Insignia Properties, L.P., a Delaware limited partnership
and IPT's operating partnership ("IPLP"), which could be converted into IPT
Common Shares; however, AIMCO currently has no plans to cause the AIMCO
Operating Partnership to request conversion of such IPLP OP Units
 
                                       46
<PAGE>   53
 
into IPT Common Shares. AIMCO provided an irrevocable proxy to Messrs. Aston,
Farkas and Garrison, acting individually, to vote the IPT Common Shares owned by
AIMCO and its subsidiaries FOR the Merger, the Merger Agreement and the
transactions contemplated thereby at the Special Meeting. Messrs. Farkas, Aston
and Garrison agreed to vote such shares for the Merger. ACCORDINGLY, APPROVAL
AND ADOPTION OF THE MERGER, THE MERGER AGREEMENT AND THE TRANSACTIONS
CONTEMPLATED THEREBY AT THE SPECIAL MEETING ARE ASSURED. As of the Record Date,
the executive officers of IPT as well as the trustees of IPT who were not
appointed by AIMCO have informed IPT that they intend to cause their shares to
be voted for the Merger, the Merger Agreement and the transactions contemplated
thereby at the Special Meeting.
 
VOTING
 
     Although approval and adoption of the Merger, the Merger Agreement and the
transactions contemplated thereby is assured, if you want to vote your IPT
Common Shares at the Special Meeting, your shares must be represented at the
Special Meeting in person or by proxy. WE ARE NOT ASKING FOR A PROXY AND YOU ARE
REQUESTED NOT TO SEND US A PROXY. If your IPT Common Shares are held in street
name, and you wish to attend the Special Meeting and vote your IPT Common Shares
or if you wish to grant a proxy with respect to your shares, you will need to
get a letter from the broker or nominee holding your shares that confirms your
ownership of such IPT Common Shares and bring it with you to the Special Meeting
or provide it with your proxy.
 
NO APPRAISAL RIGHTS
 
     Under Maryland law, IPT shareholders will not be entitled to any objecting
shareholders' rights to fair value in connection with the Merger.
 
                                       47
<PAGE>   54
 
                          SPECIAL FACTORS TO CONSIDER
 
INTRODUCTION TO THE MERGER
 
     Before the IFG Merger, IPT was controlled by IFG. Because of this, the
negotiations regarding the IFG Merger necessarily included discussion regarding
the acquisition of IPT by AIMCO. Therefore, the discussion below that describes
the background of the IFG Merger is relevant to understanding the background of
the Merger.
 
BACKGROUND OF THE IFG MERGER
 
     Issues relating to the long-term strategy of IFG were discussed regularly
by IFG's senior management and the Board of Directors (the "IFG Board"). Senior
management of IFG believed that, in recent years, the business of managing and
owning multifamily apartment properties in the United States had been
characterized by consolidation, driven mainly by the economies of scale
available to larger entities in the industry. Senior management of IFG also
believed that greater size permitted efficiencies and lower costs in capital
raising, lower costs for goods and services because of larger centralized buying
power, amortization of ongoing general and administrative costs over a broader
portfolio base and other potential advantages that increase value for
stockholders. In addition, IFG's senior management and the IFG Board believed
that the emergence of large apartment REITs, with their appetites for
acquisitions, generally increased the prices at which these properties were
offered and sold. In order to take advantage of these trends, IFG's senior
management and the IFG Board remained receptive to opportunities to acquire
other businesses or to be acquired by another entity. During the two years
preceding October 1, 1998, neither IFG nor IPT received any third party
indications of interest in acquiring IPT.
 
     On September 11, 1997, Mr. Terry Considine, AIMCO's Chairman and Chief
Executive Officer, met Mr. Andrew L. Farkas, IFG's Chairman, President and Chief
Executive Officer, at IFG's New York City office to discuss the general
philosophy of each company, the consolidation occurring in the multifamily
apartment industry and its future and the competitive advantages that each of
IFG and AIMCO offered.
 
     On September 18, 1997, Messrs. Farkas and Considine flew from Denver to Los
Angeles, without any specific discussions regarding a transaction between IFG
and AIMCO.
 
     On September 23, 1997, Messrs. Farkas and Considine met for dinner in New
York City to discuss the feasibility of a transaction between the two companies,
excluding IFG's commercial real estate business, and the synergies which could
result from the combined companies.
 
     On September 24, 1997, Mr. Farkas asked Lehman Brothers, Inc. ("Lehman
Brothers"), IFG's financial advisor for previous transactions, to prepare a
confidentiality agreement for execution by IFG and AIMCO.
 
     Throughout late September and early October 1997, Lehman Brothers, with the
assistance of Mr. James A. Aston, IFG's Chief Financial Officer, prepared
confidential informational material setting forth certain historical financial
information of IFG and a description of, and historical and projected financial
information with respect to, IFG's multifamily housing business.
 
                                       48
<PAGE>   55
 
     During the first two weeks of October 1997, Lehman Brothers negotiated a
confidentiality agreement with AIMCO. On October 14, 1997, IFG and AIMCO
executed a confidentiality agreement so that the parties could discuss in more
detail the possibility of a transaction involving IFG, excluding the commercial
real estate business, and AIMCO. After the execution of the confidentiality
agreement, Lehman Brothers delivered the confidential informational material to
AIMCO. During the next eight weeks, the parties continued telephone discussions
about a possible transaction, and during such time AIMCO requested additional
due diligence information regarding IFG, which IFG provided. Although none of
these discussions was conclusive, they did allow each party to become better
informed about the other and to permit each party to discuss in detail the
advantages of a transaction.
 
     In the first quarter of 1998, the IFG Board held its regularly scheduled
board meeting. The IFG Board was advised that IFG's senior management had held
discussions with representatives of AIMCO and Lehman Brothers concerning a
possible transaction between IFG and AIMCO. Senior management of IFG further
discussed the potential for combinations with other owners and managers of
multifamily apartment properties and whether IFG intended to pursue the
commercial property business or the multifamily apartment property business, or
both. The IFG Board determined that IFG should either search for a company with
a similar philosophy with which to merge or continue to pursue acquisitions of
interests in multifamily properties and companies that provide multifamily
property management through IPT. IFG's senior management then discussed the
potential synergies which could result from the combination with AIMCO. The IFG
Board authorized senior management to continue to investigate a possible merger
with AIMCO.
 
     On February 5, 1998, Mr. Aston flew to Denver to meet with Mr. Thomas
Toomey, AIMCO's Executive Vice President - Finance and Administration, and Mr.
Harry Alcock, AIMCO's Senior Vice President - Acquisitions, to discuss IFG's
confidential informational material provided to AIMCO.
 
     On February 11, 1998, representatives of IFG and AIMCO met at IFG's offices
in New York City to begin discussions regarding the terms of a transaction,
including price, structure and protection of the shareholders of IPT, other than
IFG.
 
     On February 12, 1998, representatives of IFG and AIMCO met at IFG's offices
in New York City to discuss the proposed acquisition of IFG's multifamily
business. The proposed price, general terms, timing and accounting treatment of
the proposed merger were discussed. On February 12 and 13, 1998, IFG met with
its legal and financial advisors to discuss a possible structure of the
transaction and instructed its legal advisors to work expeditiously to negotiate
a definitive agreement. On February 18, 1998, IFG's legal and financial advisors
met with AIMCO's legal advisors to discuss drafts of the documentation for the
proposed transaction. From February 19 through March 17, 1998, senior management
of IFG and AIMCO, their respective legal and tax advisors and Lehman Brothers
met to discuss and negotiate (1) revised drafts of the documentation for the
proposed transaction, (2) revised structures for the transaction, (3) various
forms of merger consideration and (4) various other issues that arose during
such negotiations. Also during that time, senior management of IFG, assisted by
their legal and financial advisors, conducted a due diligence review of AIMCO.
During the course of discussions from the end of February through the beginning
of March, it was decided that the proposed transaction could best be structured
as a merger, with IFG first spinning off its commercial
 
                                       49
<PAGE>   56
 
real estate and other businesses to its stockholders. During the course of these
negotiations, both parties were unsure whether an agreement could be reached, as
many material terms of the transaction were not and could not be agreed upon,
including tax structure and the valuation of IFG's multifamily housing business.
 
     On March 13, 1998, the IFG Board executed an engagement letter with Lehman
Brothers, pursuant to which Lehman Brothers was formally retained as IFG's
financial advisor to evaluate the proposed merger with AIMCO and the allocation
of the consideration to be offered by AIMCO between holders of IFG's common
stock and IPT Common Shares.
 
     Also, on March 13, 1998, the IFG Board held a special meeting to consider
the proposed merger with AIMCO. At the meeting, IFG's counsel discussed the
draft Agreement and Plan of Merger, by and between AIMCO, the AIMCO Operating
Partnership, New Insignia, and IFG (the "IFG Merger Agreement") in detail. In
addition, representatives of Lehman Brothers made a presentation which included
delivery of Lehman Brothers' oral opinion (subsequently confirmed in writing on
March 17, 1998) that the aggregate consideration to be received by the holders
of IFG common stock in the spin-off of New Insignia, which included IFG's
commercial real estate and certain other businesses, and in the IFG Merger was
fair, from a financial point of view, to the holders of Class A common stock of
IFG, and that the allocations of the consideration to be received by holders of
Class A common stock of IFG in the IFG Merger and the consideration required to
be offered to holders of IPT Common Shares (other than IFG) was reasonable.
Following discussion, the IFG Board unanimously approved the IFG Merger and the
draft IFG Merger Agreement and the transactions contemplated thereby, giving
senior management the authority to make changes in the transaction and
documentation that they believed appropriate. The IFG Merger Agreement was
amended and restated as of May 26, 1998, but not in any way that would affect
AIMCO's obligations relating to IPT. Prior to the IFG Merger, AIMCO did not own
any equity investment in IFG or IPT.
 
     On October 1, 1998, IFG was merged with and into AIMCO, with AIMCO
continuing as the surviving corporation in the IFG Merger. As a result of the
IFG Merger, AIMCO became the owner of a controlling interest in IPT.
 
BACKGROUND OF THE MERGER
 
     After the IFG Merger Agreement was announced, the Board of Trustees of
Angeles Mortgage Investment Trust, an unincorporated California business trust
("AMIT"), determined that it could not recommend approval of the merger of AMIT
with and into IPT (the "AMIT Merger") to AMIT shareholders unless it received a
covenant from New Insignia that New Insignia would enforce AIMCO's obligation to
propose to acquire IPT pursuant to the terms of the IFG Merger Agreement.
Subsequent negotiations among IPT, AMIT and New Insignia resulted in New
Insignia covenanting to AMIT and IPT that it would use its reasonable best
efforts to compel AIMCO to propose to acquire IPT by merger in the event that
AIMCO were to breach its obligation under the IFG Merger Agreement. The AMIT
Board of Trustees recommended approval of the AMIT Merger.
 
     On August 26, 1998, AIMCO's counsel circulated a draft of the merger
agreement to IPT's management. Such draft proposed that IPT Common Shares would
be converted, at the option of the holder, into $13.25 in cash (subject to
adjustment for distributions) or
 
                                       50
<PAGE>   57
 
shares of Class A Common Stock, par value $.01 per share, of AIMCO ("AIMCO
Common Stock"). The IFG Merger Agreement required AIMCO to offer to pay the
merger consideration in cash but the draft merger agreement circulated on August
26, 1998 offered IPT shareholders an option to elect to receive shares of AIMCO
Common Stock. To the extent that IPT shareholders exercised their option to take
shares of AIMCO Common Stock under such draft of the merger agreement, AIMCO
would have preserved its liquid assets for alternative uses. The August 26, 1998
draft of the merger agreement was the first draft of the merger agreement
exchanged between IPT and AIMCO. As of September 4, 1998 and September 17, 1998,
neither AIMCO nor IPT believed that it was probable that a merger would be
consummated on the terms of and subject to the conditions in the August 26, 1998
draft merger agreement, including that AIMCO would pay the merger consideration
in shares of AIMCO Common Stock in the manner contemplated by such draft.
 
     Between August 26, 1998 and September 18, 1998, AIMCO and IPT did not hold
discussions with respect to the terms of the proposed merger.
 
     On September 4, 1998, the AMIT shareholders approved the AMIT Merger and on
September 17, 1998, the AMIT Merger was consummated. The proxy statement
soliciting the approval by AMIT's shareholders of the AMIT Merger stated that
AIMCO agreed to propose to acquire IPT by merger and to use its reasonable best
efforts to effect such merger within three months after the effective time of
the IFG Merger, at a purchase price of not less than $13.25 per IPT Common Share
in cash. As of September 4, 1998, the terms of the merger between IPT and AIMCO
were only in preliminary negotiations and no negotiations had occurred in
response to the August 26, 1998 draft merger agreement offered by AIMCO. As of
September 4, 1998, AIMCO had proposed a merger whereby IPT shareholders could
elect between $13.25 in cash and shares of AIMCO stock. On September 18, 1998,
representatives of AIMCO and IPT met at IPT's counsel's offices in New York. At
such meeting, AIMCO indicated that, while it remained committed to acquiring the
publicly held IPT Common Shares, in light of uncertainties in the market for
debt and equity securities and in light of a reduction in the amount of
commercial mortgage financing available, it would like to have the option to
consummate the transaction using shares of AIMCO Common Stock as all or part of
the merger consideration rather than granting such option to the IPT
shareholders.
 
     IPT's officers were unwilling to agree to accept shares of AIMCO Common
Stock at a $13.25 per IPT share valuation. As a result of negotiations between
the representatives of AIMCO and IPT at such meeting and during phone calls
subsequent to that meeting, it was agreed that, to the extent AIMCO paid the
merger consideration in cash, each IPT Common Share would be valued at $13.25
per share and, to the extent AIMCO paid the merger consideration in shares of
AIMCO Common Stock, each IPT Common Share would be valued at $13.28 per share.
The IPT Board believed that the three cent premium would offset most (if not
all) of the cost incurred by an IPT shareholder in selling the shares of AIMCO
Common Stock received in the merger for cash on the NYSE. In addition, as a
result of the September 18 meeting and after the subsequent telephone calls
between the parties, AIMCO's and IPT's officers agreed to that AIMCO with the
right to elect the form of consideration to be paid to the IPT shareholders as a
result of the proposed merger. On September 20, 1998, AIMCO's counsel circulated
a draft of a merger agreement reflecting AIMCO's ability (rather than the IPT
shareholders' ability) to elect the extent to which the merger consideration
would consist of cash or shares of
 
                                       51
<PAGE>   58
 
AIMCO Common Stock. In the course of negotiations, AIMCO offered benefits to
holders of IPT Common Shares beyond its obligations pursuant to the IFG Merger
Agreement, including (1) the increased certainty of closing a merger with fewer
conditions to closing than the typical acquisition transaction, (2) a price of
$13.28 per IPT Common Share (rather than $13.25) for the portion of the merger
consideration that AIMCO would pay in AIMCO Common Stock, (3) the opportunity to
benefit from any appreciation in the market value of AIMCO Common Stock from
December 31, 1998 (the date on which the AIMCO Exchange Value may be determined)
to the date the merger is completed and (4) the expectation that any receipt of
shares of AIMCO Common Stock would be substantially tax free to holders of IPT
Common Shares. See "Federal Income Tax Consequences of the Merger." The draft
merger agreement, as negotiated by IPT and AIMCO also provided that upon a
termination of such agreement certain transactions entered into between AIMCO,
IPLP, and IPT would be unwound, and that AIMCO would cede the right to elect a
majority of the IPT Board for up to two years after such termination (even
though AIMCO would own a majority of the outstanding IPT Common Shares). Both of
these provisions were intended to benefit the holders of IPT Common Shares in
the unlikely event that the merger was not completed. The draft merger agreement
also provided (and the Merger Agreement provides), that an amendment thereto
could be effected only with the approval of a majority of Messrs. Aston,
Eckstein, Farkas, Garrison and Herrmann (and their successors) (the "Continuing
Trustees"). See "The Merger Agreement and Terms of the Merger -- Amendment and
Waiver."
 
     Because the contemplated original merger consideration had changed from all
cash to potentially include shares of AIMCO Common Stock, the IPT Board
determined that a further opinion of Lehman Brothers as to the fairness, from a
financial point of view, of the consideration to be paid pursuant to the draft
merger agreement was desirable. On September 30, 1998, the IPT Board formally
engaged Lehman Brothers to render such an opinion to the IPT Board. By the
morning of October 1, 1998, executive officers of IPT and AIMCO informally
concurred that they had reached agreement on all material terms of the draft
merger agreement. The IPT Board (prior to the election of AIMCO-nominated
trustees) held a special meeting on October 1, 1998, attended by all trustees
but Warren M. Eckstein, to consider the terms of the draft merger agreement,
including the merger consideration to be paid, in detail. At the request of the
IPT Board, representatives of Lehman Brothers made a presentation concerning the
analysis underlying their conclusions and delivered their oral opinion
(confirmed in writing in an opinion dated the same day) (the "IPT Fairness
Opinion") that the consideration to be paid in the merger of IPT with and into
AIMCO as contemplated by the draft merger agreement (the "Original Merger") was
fair from a financial point of view to the holders of IPT Common Shares, other
than AIMCO, IFG and their respective subsidiaries. See "-- Opinion of Financial
Advisor to the IPT Board." The IPT Board also discussed the effect on IPT
shareholders of agreeing to permit AIMCO to pay some or all of the merger
consideration with AIMCO Common Stock. The IPT Board concluded that the receipt
of AIMCO Common Stock would be advantageous to IPT shareholders because the
portion of the consideration received as AIMCO Common Stock was expected to be
substantially tax free to IPT shareholders. In addition, the IPT Board
determined that if an IPT shareholder wanted cash instead of AIMCO Common Stock,
the increase in consideration would offset most (if not all) of the cost
incurred in selling the AIMCO Common Stock. Following such discussions and based
in part on the advice of Lehman Brothers, the IPT Board (prior to the election
of trustees nominated by AIMCO and with Mr. Eckstein not
 
                                       52
<PAGE>   59
 
in attendance) (the "Approving IPT Board") unanimously (1) deemed the Original
Merger advisable and in the best interests of IPT, (2) directed the Original
Merger to be submitted to the IPT shareholders, (3) recommended the Original
Merger to the IPT shareholders, and (4) approved the Original Merger, the draft
merger agreement and the transactions contemplated thereby, giving senior
management of IPT the authority to make changes in the transaction and
documentation that they believed appropriate. The Board of Directors of AIMCO
also approved the draft merger agreement and the merger contemplated thereby.
The IFG Merger was closed later on October 1, 1998. The Agreement and Plan of
Merger, dated as of October 1, 1998 (the "Original Merger Agreement") by and
between AIMCO and IPT was finalized and executed on October 2, 1998.
 
     As contemplated by the Original Merger Agreement, effective simultaneously
with the execution and delivery of the Original Merger Agreement, (1) Messrs.
Ronald Uretta and Ronald J. Consiglio resigned as trustees of IPT; (2) the size
of the IPT Board was increased by four from seven to eleven members; and (3)
Messrs. Terry Considine, Peter K. Kompaniez, Patrick J. Foye, Steven D. Ira,
Thomas W. Toomey and Harry G. Alcock (collectively the "AIMCO-nominated
Trustees"), each of whom is an officer of AIMCO, were appointed as trustees of
IPT to fill the vacancies on the IPT Board.
 
     In connection with and prior to the execution of the Original Merger
Agreement, the bylaws of IPT (the "IPT Bylaws") were amended by the Approving
IPT Board, as permitted by Maryland law and the IPT Bylaws. One of the bylaw
amendments had the effect of exempting AIMCO's acquisition (through the IFG
Merger) of IPT Common Shares from Maryland's control share acquisition statute.
Maryland's control share acquisition statute generally provides that persons
acquiring more than 20% of the outstanding shares of a Maryland real estate
investment trust will have no voting rights with respect to shares over the 20%
threshold unless the acquisition is approved by (1) the affirmative vote of
66 2/3% of all the votes entitled to be cast on the matter, excluding all
interested shares, or (2) exempted by a bylaw provision adopted prior to the
acquisition of the shares, as was the case in AIMCO's acquisition, through the
IFG Merger, of the IPT Common Shares formerly held by IFG. The Approving IPT
Board concluded that the bylaw amendment exempting AIMCO's acquisition of IPT
Common Shares from Maryland's control share acquisition statute was fair to IPT
shareholders because it had concluded that the terms of the Original Merger
Agreement were fair to IPT shareholders and the bylaw amendment was necessary to
permit the Original Merger to occur.
 
     In the interest of clarifying certain ambiguities and inconsistencies in
the Original Merger Agreement and in the IPT Bylaws and to change the structure
of the Original Merger from a merger of IPT with and into AIMCO to the merger of
TPI Acquisition Trust, a real estate investment trust and a subsidiary of AIMCO
("Merger Sub"), with and into IPT, AIMCO and IPT proposed to execute an
amendment and restatement of the Original Agreement. On December 7, 1998, the
parties, including Merger Sub, entered into an Amended and Restated Agreement
and Plan of Merger (the "First Amended and Restated Agreement"). Due to the
proposal of new tax regulations, AIMCO and IPT elected to change the structure
of the transaction back to a merger of IPT with and into AIMCO. On January 22,
1999, AIMCO and IPT, with the written consent of Merger Sub, entered into the
Merger Agreement. The First Amended and Restated Agreement and the Merger
Agreement, both of which were approved by the IPT Board (with the
AIMCO-nominated Trustees abstaining) and the Board of Directors of AIMCO, did
not
 
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<PAGE>   60
 
materially alter the rights or interests of the IPT shareholders. A copy of the
Merger Agreement is included at the back of this Information
Statement/Prospectus as Annex A. As the Information Statement/Prospectus
includes only a summary of the Merger Agreement, IPT shareholders should read
the Merger Agreement carefully in its entirety.
 
IPT'S REASONS FOR THE MERGER; RECOMMENDATION OF THE IPT BOARD
 
     At its meeting on October 1, 1998, the Approving IPT Board received and
considered the presentations of the management of IPT, its legal advisors and
its financial advisors regarding the Original Merger, deemed the Original Merger
advisable and in the best interests of IPT and unanimously directed the Original
Merger be submitted to the IPT shareholders and recommended that the IPT
shareholders approve and adopt the Original Merger, the Original Merger
Agreement and the transactions contemplated thereby. The Approving IPT Board
agreed to the proposed Original Merger at that time because (i) IFG had
negotiated an expedited 90 day post-IFG Merger timetable as part of the
negotiation of the IFG Merger Agreement, (ii) the Approving IPT Board was unable
to predict whether AIMCO, as the holder of a majority of the outstanding IPT
Common Shares, would exercise such powers as well, better or worse than IFG had
exercised such powers and (iii) it provided IPT shareholders not affiliated with
AIMCO with the ability to dispose of their shares at a valuation determined by
arm's-length negotiation between IFG and AIMCO and IPT and AIMCO. Although the
closing of the IFG Merger was to occur following the meeting of the IPT Board on
October 1, 1998, after which AIMCO would own a majority of the outstanding IPT
Common Shares, the Approving IPT Board did not find it necessary to establish a
special committee. Each member of the Approving IPT Board and each executive
officer of IPT was unaffiliated with AIMCO and such trustees believed there was
no significant risk of conflicts of interest with AIMCO which would impair the
Approving IPT Board's or IPT's officers' ability to negotiate an arm's-length
merger agreement with AIMCO. The amendments which the Approving IPT Board made
to IPT's Bylaws prior to entering into the Original Merger Agreement included
provisions which reserved significant rights to the Continuing Trustees even
though the AIMCO-nominated Trustees would represent a majority of the IPT Board
following the IFG Merger. These amendments include, among other things, that the
Continuing Trustees must approve the following actions on behalf of IPT: (1)
amendments to, or waivers of provisions in, the Original Merger Agreement (now
the Merger Agreement), (2) termination of the Original Merger Agreement (now the
Merger Agreement) by IPT, (3) enforcing employment contracts in existence on
October 1, 1998, (4) amendments to, or waivers of provisions in, the limited
partnership agreement of IPLP, (5) amendments to the IPT Declaration of Trust,
as amended (the "IPT Declaration") or IPT Bylaws, (6) loans or cash advances
from IPT to AIMCO and (7) declaring distributions on IPT Common Shares. The
Approving IPT Board believed that it was able to act in the interests of the IPT
shareholders not affiliated with AIMCO in approving the Original Merger
Agreement, and as a result believed that it was not necessary to seek the
separate approval of the non-affiliated IPT shareholders. The IPT Fairness
Opinion addressed the fairness, from a financial point of view, of the
consideration to be paid pursuant to the draft of the Original Merger Agreement
to IPT shareholders (other than AIMCO, IFG and their respective subsidiaries).
The IPT Fairness Opinion was addressed to the entire IPT Board and not just the
two members who were not employees of IPT. Although Mr. Eckstein, one of two
members of the IPT Board who were not employees of IPT, was not present at the
October 1, 1998 meeting of the IPT Board, following the meeting he
 
                                       54
<PAGE>   61
 
advised the Approving IPT Board of his agreement with the actions approved at
that meeting.
 
     In the interest of clarifying certain ambiguities and inconsistencies in
the Original Merger Agreement and to change the structure of the Original Merger
to the Merger, AIMCO and IPT proposed to execute an amendment and restatement of
the Original Merger Agreement.
 
     All of the Continuing Trustees were present at the December 7, 1998 and all
of the Continuing Trustees (other than Mr. Farkas) were present at the January
22, 1999 meetings of the IPT Board at which the First Amended and Restated
Agreement and Merger Agreement, respectively, were approved, and voted for such
approval. The IPT Board concluded that since the differences between the
Original Merger Agreement, First Amended and Restated Agreement and the Merger
Agreement did not affect materially the value of the consideration to be
received by the IPT shareholders, a new opinion of Lehman Brothers was not
required. At the IPT Board meetings, the IPT Board (with the AIMCO-nominated
Trustees abstaining), unanimously ratified and reaffirmed its previous findings
regarding fairness of the Original Merger, as contemplated by the Original
Merger Agreement, as modified on December 7, 1998 by the First Amended and
Restated Agreement and as modified on January 22, 1999 by the Merger Agreement,
deemed the Merger advisable and in the best interest of IPT and directed that
the Merger, the Merger Agreement and the transactions contemplated thereby be
submitted to the IPT shareholders with its recommendation.
 
     In reaching its determination, the Approving IPT Board considered a number
of factors, including the following:
 
     - Control of IPT by AIMCO. The Approving IPT Board noted that AIMCO
       controlled a majority of the outstanding IPT Common Shares. Such
       ownership position would have allowed AIMCO to elect a majority of the
       members of the IPT Board, exercise substantial influence with respect to
       the business of IPLP and otherwise control IPT's and its subsidiaries'
       affairs. The Approving IPT Board was unable to predict whether AIMCO
       would exercise such powers as well, worse or better than IFG had
       exercised such powers. Rather than subject the IPT shareholders not
       affiliated with AIMCO (the "Minority Holders") to the risk of being
       minority shareholders of an entity with a new controlling shareholder,
       the Approving IPT Board decided to enter into the Original Merger
       Agreement so that the Minority Holders would receive, at a minimum,
       $13.25 per share while also providing the possibility that the Minority
       Holders might defer recognition of taxable income to the extent that
       AIMCO elected to issue AIMCO Common Stock in the Original Merger. In the
       IFG Merger, IFG valued its investment in IPT at $13.25 per IPT Common
       Share.
 
     - Consideration. The Approving IPT Board noted that the Original Merger
       Agreement provided AIMCO with the option of paying the merger
       consideration in cash, shares of AIMCO Common Stock or a combination of
       both. The Approving IPT Board believed that the ability of Minority
       Holders to dispose of their IPT Common Shares at a valuation determined
       by arm's-length negotiation between IFG and AIMCO and upon the terms
       established by arm's-length negotiation between IPT and AIMCO was a
       superior alternative for the Minority Holders than
 
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<PAGE>   62
 
       remaining minority shareholders whose exit value and distribution rate
       would be controlled by AIMCO.
 
     - Value of Stock Consideration. Although the IFG Board noted that AIMCO had
       originally agreed to offer $13.25 in cash per IPT Common Share, the
       increase in the offered consideration to $13.28, to the extent AIMCO
       chooses to pay with AIMCO Common Stock, was a positive factor inasmuch as
       any stock component will provide IPT's shareholders with the opportunity
       to participate in a company which, subsequent to the IFG Merger, is one
       of the largest owners and managers of multifamily apartment properties in
       the United States. Moreover, even if AIMCO pays part or all of the merger
       consideration in AIMCO Common Stock, those IPT shareholders who would
       prefer cash can sell the AIMCO Common Stock received by them in the
       Merger, using the increased consideration (3 cents) per IPT Common Share
       to offset most (if not all) of the transaction costs. In approving the
       First Amended and Restated Agreement at its December 7, 1998 meeting and
       the Merger Agreement at its January 22, 1999 meeting, the IPT Board was
       aware of the October 1, 1998 revision of Moody's Investors Service's
       outlook for the ratings of AIMCO from stable to negative and the reasons
       cited for such revision. The IPT Board believed the market price of AIMCO
       Common Stock would reflect AIMCO's credit rating prior to the time the
       AIMCO Exchange Value would be determined. Because IPT shareholders would
       receive $13.28 in AIMCO Common Stock, any decline in the market price of
       AIMCO Common Stock (and therefore the AIMCO Exchange Value) would result
       in a greater number of shares being issued to IPT shareholders, not a
       reduction in the aggregate market value of the consideration paid for the
       IPT Common Shares.
 
     - Interest of Former AMIT Shareholders. The Approving IPT Board was aware
       that AMIT's Board of Trustees was concerned about the effect of the
       proposed Original Merger on the value of the IPT Common Shares issued in
       the AMIT Merger. Former AMIT shareholders had, at the time the AMIT
       Merger was approved, the expectation that they would, within six months,
       receive $13.25 per IPT Common Share in cash. On September 4, 1998, when
       AMIT's shareholders approved the AMIT Merger, and on September 17, 1998,
       when the AMIT Merger was consummated, AIMCO had not yet negotiated the
       concession from IPT which allowed AIMCO to elect to pay the merger
       consideration in shares of AIMCO Common Stock. At such dates, the draft
       of the merger agreement then being negotiated reflected an option in
       favor of IPT's shareholders to elect whether to receive cash or shares of
       AIMCO Common Stock as merger consideration. The approving IPT Board
       determined that (i) the increase of the consideration per IPT Common
       Share to $13.28 if the merger consideration is comprised of shares of
       AIMCO Common Stock would offset most (if not all) of the cost incurred in
       selling the AIMCO Common Stock, if cash is more desirable, (ii) former
       AMIT shareholders (together with all other IPT shareholders) will have an
       opportunity to benefit from any increase in the market value of shares of
       AIMCO Common Stock between December 31, 1998 (the date on which the AIMCO
       Exchange Value may be determined) and the date the Merger is completed
       and (iii) there would be a benefit to the former AMIT shareholders if the
       transaction received tax-free treatment.
 
                                       56
<PAGE>   63
 
     - Other Terms of the Original Merger Agreement. The Approving IPT Board
       viewed favorably the terms and conditions of the Original Merger
       Agreement. The Approving IPT Board noted that the conditions to AIMCO's
       obligation to close the Original Merger and IPT's representations and
       warranties in the Original Merger Agreement are more favorable to IPT
       than those typically negotiated by public companies acquired by merger.
       The Original Merger Agreement did not contain conditions to AIMCO's
       obligation to consummate the Merger such as the receipt of opinions of
       IPT counsel on the closing date, the absence of material changes between
       the date of the Original Merger Agreement and the closing date and the
       receipt of an officers' certificate from IPT on the closing date. In
       addition, the Original Merger Agreement did not contain representations
       and warranties by IPT as to, among other things, third party or
       governmental consents and approvals, undisclosed IPT liabilities,
       litigation involving IPT or its properties, and employee benefit plans.
       The Approving IPT Board also viewed favorably the likelihood of the
       consummation of the Original Merger and, therefore, the likely avoidance
       of a failed transaction and the related potential deterioration of IPT's
       business and loss of personnel. The Merger Agreement also contains all of
       these favorable terms and conditions.
 
     - IPT Fairness Opinion. The Approving IPT Board considered the IPT Fairness
       Opinion to the effect that, as of the date of such opinion, the
       consideration to be paid in the Original Merger is fair, from a financial
       point of view, to IPT's shareholders (other than AIMCO, IFG and their
       subsidiaries). The Approving IPT Board relied on the work and
       presentation of Lehman Brothers in the overall financial analysis of IPT
       and adopted the Lehman Brothers opinion analysis which is described under
       "-- Opinion of Financial Advisor to the IPT Board." The IPT Fairness
       Opinion analysis calculated ranges of equity market values for IPT Common
       Shares. The merger consideration falls within those ranges.
 
     - Structure of the Transaction. The Approving IPT Board considered the
       transaction structure and concluded that it was fair because it offers
       all IPT shareholders (other than AIMCO and its subsidiaries and holders
       of restricted IPT Common Shares) the same consideration, provides a
       substantial likelihood of completion without disruption by Minority
       Holders who might hold out in a voluntary transaction, is expected to be
       tax free to IPT shareholders to the extent part or all of the merger
       consideration is paid in shares of AIMCO Common Stock, and offers IPT
       shareholders the possibility of owning an interest in one of the largest
       owners and managers of multifamily housing in the United States while
       preserving the REIT status of their investment.
 
     - Current and Historical Market Price. The Approving IPT Board considered
       that the merger consideration per IPT Common Share exceeded the market
       price per IPT Common Share on the last trading day before its October 1,
       1998 meeting by approximately 3.4% and that it also was greater than any
       trading price since September 17, 1998, the date on which IPT Common
       Shares were first publicly traded.
 
     - Net Book Value. The Approving IPT Board was aware that the merger
       consideration per IPT Common Share exceeded the net book value per IPT
       Common Share on June 30, 1998 by approximately 67.7%.
 
                                       57
<PAGE>   64
 
     IPT shareholders also should be aware of the following factors which the
Approving IPT Board considered in approving the Original Merger:
 
     - IPLP Restructuring and Unwind. The Approving IPT Board was aware that the
       IFG Merger Agreement provided that AIMCO would transfer substantially all
       of IPLP's assets to the AIMCO Operating Partnership following the IFG
       Merger. Therefore, in order to address the Approving IPT Board's concern
       about the effects of a failure to consummate the Original Merger, the
       Original Merger Agreement provided (and the Merger Agreement provides)
       that, in the event the Merger does not occur, such transfers will be
       unwound. In addition, all other acquisitions of equity interests in or
       debt securities of entities controlled by IPT as well as certain asset
       acquisitions will also be unwound if the Merger does not occur. IPT
       shareholders should note that, prior to the date of this Information
       Statement/ Prospectus, the economic rights to substantially all of IPLP's
       assets were transferred to the AIMCO Operating Partnership.
 
     - Control of IPT by AIMCO Prior to Consummation of the Merger. The
       Approving IPT Board recognized that after the IFG Merger, AIMCO would be
       the controlling shareholder of IPT, which would enable it to eventually
       gain control of the IPT Board. As part of the Original Merger Agreement
       and in recognition of this fact, to seek a compromise, IPT agreed to cede
       control of the IPT Board to AIMCO so long as (i) the Continuing Trustees
       would be granted rights to protect IPT's interest until the Original
       Merger was completed and (ii) the Original Merger Agreement included an
       unwind provision. The Continuing Trustees currently consist of: James A.
       Aston, Andrew L. Farkas, Warren M. Eckstein, Frank M. Garrison and Bryan
       L. Herrmann. Therefore, as part of the negotiation of the Original Merger
       Agreement, the IPT Bylaws were amended to provide, among other things,
       that a majority of the Continuing Trustees, on behalf of IPT, must
       approve the following actions: (1) amendments to, or waivers of
       provisions in, the Original Merger Agreement, (2) termination of the
       Original Merger Agreement by IPT, (3) enforcing employment contracts in
       existence on October 1, 1998, (4) amendments to, or waivers of provisions
       in, the limited partnership agreement of IPLP (the "IPLP Partnership
       Agreement"), (5) amendments to the IPT Declaration or IPT Bylaws, (6)
       loans or cash advances from IPT to AIMCO and (7) declaring distributions
       on IPT Common Shares. The IPT Bylaws also state that a vacancy created by
       a Continuing Trustee must be filled only with an individual nominated by
       a majority of the Continuing Trustees. In connection with the execution
       of the Original Merger Agreement, AIMCO agreed to vote its IPT Common
       Shares for a Continuing Trustee (or his successor) at any election of
       trustees prior to the consummation of the Original Merger and for two
       years after the termination of the Original Merger Agreement. To ensure
       that IPT could regain control of the IPT Board upon a termination of the
       Original Merger Agreement, each AIMCO-nominated Trustee executed and
       delivered to IPT an undated resignation so that he can be removed without
       requiring action on the part of the IPT Board. Based upon the safeguards
       described above, the Approving IPT Board believed that the Original
       Merger Agreement, the amended IPT Bylaws and other ancillary agreements
       provided adequate protection for IPT and its shareholders until the
       Original Merger were to be consummated or if the Original Merger
       Agreement were to be
 
                                       58
<PAGE>   65
 
       terminated. The Merger Agreement does not alter the protections contained
       in the Original Merger Agreement.
 
     - Integration of Businesses. There can be no assurance that AIMCO can
       successfully integrate the IPT or IFG businesses with its own business.
       Failure to do so may have a material adverse effect on AIMCO's results of
       operations and the market value of its securities. However, AIMCO has
       integrated other acquired businesses in a manner which appears to have
       benefitted AIMCO and its stockholders. See "Risk Factors."
 
     - Interests of Trustees and Officers. Four former executive officers of IPT
       have received or will receive cash payments and certain other benefits
       from IPT in connection with execution of the Original Merger Agreement,
       and certain trustees became parties to consulting agreements with AIMCO
       and will receive special treatment of restricted IPT Common Shares held
       by them in the Merger. See "-- Interests of Trustees and Management of
       IPT in the Merger." Notwithstanding these interests, the Approving IPT
       Board determined that the Original Merger was in the best interests of
       IPT and its shareholders.
 
     The foregoing discussion of the factors considered by the Approving IPT
Board is not intended to be exhaustive, but includes all material factors
considered by the Approving IPT Board. In light of the variety of factors
considered in connection with its evaluation of the Original Merger, the
Approving IPT Board did not find it practicable to, and therefore did not,
quantify or otherwise assign relative weights to the specific factors considered
in reaching its determination and did not try to reach a consensus as to the
appropriate analysis of each factor. In addition, different members of the
Approving IPT Board may have given different weights to different factors and
have analyzed each factor differently.
 
AIMCO'S REASONS FOR THE MERGER
 
     AIMCO believes the terms of the Merger are fair to the Minority Holders for
the reasons stated by the Approving IPT Board on October 1, 1998, and as
reaffirmed on December 7, 1998 and January 22, 1999, which AIMCO adopts. AIMCO
notes that as part of the analysis performed by the Approving IPT Board there
were factors which the Approving IPT Board considered that reflected risks
associated with AIMCO, its business and AIMCO's control of IPT. See "Risk
Factors." Although AIMCO can provide no assurance in the following regard, AIMCO
believes it will be able to mitigate the issues that concerned the Approving IPT
Board. AIMCO believes that the merger negotiations were procedurally fair
because they were negotiated on an arm's length basis with (1) IFG's officers
and the IFG Board, as to the initial $13.25 per IPT Common Share price and (2)
IPT's officers and the IPT Board (before any trustees were appointed by AIMCO),
as to the final terms of the Original Merger Agreement. AIMCO also believes that
the terms of the Merger are substantively fair because of the reasons set forth
in the description of the IPT Fairness Opinion which AIMCO adopts. AIMCO
proposed a merger at this time because (x) IFG negotiated an expedited ninety
day post-IFG Merger timetable as part of the negotiation of the IFG Merger
Agreement, (y) maintaining IPT as a publicly reporting subsidiary would involve
significant on-going administrative costs and (z) the existence of the Minority
Holders represents the ongoing potential for conflicts of interest between AIMCO
and IPT. AIMCO structured its acquisition of IPT as a merger under Maryland law
because (x) a merger was the structure provided for in the IFG Merger Agreement
and (y) a merger provides certainty in eliminating Minority
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<PAGE>   66
 
Holders who could attempt to hold-out in a tender offer or other voluntary
exchange. AIMCO believes that the IPT Board's decision not to establish a
special committee to negotiate the Original Merger Agreement is consistent with
AIMCO's view of the procedural fairness of the Merger because the IPT officers
and trustees who negotiated the Original Merger Agreement and the Continuing
Trustees who negotiated the Merger Agreement were not affiliated with AIMCO.
AIMCO has discussed with certain IPT shareholders the possibility that AIMCO may
purchase such shareholders' IPT Common Shares in a private placement at a price
per IPT Common Share which might have been greater than the value of the merger
consideration. AIMCO has determined that it will not purchase any additional IPT
Common Shares prior to the Special Meeting.
 
     AIMCO has not yet determined what percentage, if any, of the merger
consideration it will pay in cash. AIMCO's determination as to whether to use
cash as all or part of the merger consideration will be based upon market
conditions at the time of election. Among the factors to be considered are
AIMCO's best estimate of what the market valuation of AIMCO Common Stock might
be at the closing and the alternative uses for AIMCO's cash (including, but not
limited to, investments in new multifamily residential properties and purchasing
limited partnership interests in limited partnerships that AIMCO manages or
controls) and the availability and cost of financing. AIMCO anticipates that any
cash paid as consideration in the Merger will be provided from cash on hand,
cash generated from operations and sales of equity securities or borrowings
under existing credit facilities with financial institution lenders. IPT will
issue a press release at least 12-NYSE trading days prior to the date of the
Special Meeting, announcing the percentage of the merger consideration that
AIMCO will pay in cash and the percentage of the merger consideration that AIMCO
will pay in shares of AIMCO Common Stock.
 
OPINION OF FINANCIAL ADVISOR TO THE IPT BOARD
 
     Lehman Brothers has acted as financial adviser to the IPT Board in
connection with the Original Merger.
 
     As part of its role as financial adviser to IPT, on October 1, 1998, Lehman
Brothers delivered the IPT Fairness Opinion to the IPT Board to the effect that,
as of such date, from a financial point of view, the consideration to be
received in the Original Merger by the holders of IPT Common Shares (other than
AIMCO, IFG and their subsidiaries) is fair to such holders.
 
                                       60
<PAGE>   67
 
     A copy of the IPT Fairness Opinion is included at the back of this
Information Statement/Prospectus as Annex B. IPT shareholders should read the
IPT Fairness Opinion in its entirety for a discussion of the assumptions made,
matters considered, potential conflicts of interest and limitations on the
review undertaken by Lehman Brothers in rendering its opinion. The summary of
the IPT Fairness Opinion set forth in this Information Statement/Prospectus is
qualified in its entirety by reference to the full text of the IPT Fairness
Opinion.
 
     No limitations were imposed by IPT on the scope of Lehman Brothers'
investigation or the procedures to be followed by Lehman Brothers in rendering
the IPT Fairness Opinion, except that IPT did not authorize Lehman Brothers to
solicit, and Lehman Brothers did not solicit, proposals from third parties with
respect to the purchase of all or a part of IPT's business. Lehman Brothers was
not requested to and did not make any recommendation to the IPT Board as to the
form or amount of the consideration to be offered to the Minority Holders in the
Original Merger, which was determined through arm's-length negotiations. In
arriving at its opinion, Lehman Brothers did not ascribe a specific range of
value to IPT, but rather made its determination as to the fairness, from a
financial point of view, of the consideration to be offered to the Minority
Holders by AIMCO (the "IPT Consideration") on the basis of the financial and
comparative analysis described below. The IPT Fairness Opinion is for the use
and benefit of the IPT Board and was rendered to the IPT Board in connection
with its consideration of the Original Merger. The IPT Fairness Opinion is not
intended to be and does not constitute a recommendation of the IPT Consideration
to any shareholder of IPT. Lehman Brothers was not requested to opine as to, and
its opinion does not address, (1) IPT's underlying business decision to proceed
with or effect the Merger or (2) the fairness of the allocation of the
consideration between the consideration paid in the IFG Merger and the shares of
New Insignia common stock and the IPT Consideration.
 
     In arriving at its October 1, 1998 opinion, Lehman Brothers reviewed and
analyzed: (1) a draft dated September 29, 1998 of the Original Merger Agreement
and the proposed terms of the Original Merger, (2) publicly available
information concerning IPT and AIMCO that Lehman Brothers believed to be
relevant to its analysis, including, without limitation, the Joint Proxy
Statement/Prospectus relating to the IFG Merger, (3) financial and operating
information with respect to the business, operations and prospects of IPT and
AIMCO furnished to it by IPT and AIMCO, respectively, (4) a trading history of
the shares of AIMCO Common Stock from January 1, 1996 to the date of the IPT
Fairness Opinion and a comparison of that trading history with those of other
companies that it deemed relevant, (5) a comparison of the historical financial
results and the financial condition of IPT at such time with those of other
companies that Lehman Brothers deemed relevant, (6) a comparison of the
historical financial results and the financial condition of AIMCO at such time
with those of other companies that Lehman Brothers deemed relevant, (7) a
comparison of the financial terms of the Original Merger with the financial
terms of certain other recent transactions that Lehman Brothers deemed relevant
and (8) liquidation values of IPT's properties furnished to Lehman Brothers by
IPT. In addition, Lehman Brothers had discussions with the management of each of
IPT and AIMCO concerning their respective business, operations, assets,
financial conditions and prospects and undertook such other studies, analyses
and investigations as Lehman Brothers deemed appropriate.
 
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<PAGE>   68
 
     In arriving at the IPT Fairness Opinion, Lehman Brothers assumed and relied
upon the accuracy and completeness of the financial and other information used
by it without assuming any responsibility for independent verification of such
information and further relied upon the assurances of the management of each of
IPT and AIMCO that they were not aware of any facts or circumstances that would
make such information inaccurate or misleading, in any material respect. With
respect to the financial projections of IPT and AIMCO, upon advice of IPT and
AIMCO, Lehman Brothers assumed that such projections were reasonably prepared on
a basis reflecting the best currently available estimates and judgments of the
managements of IPT and AIMCO, as the case may be, as to the future financial
performance of IPT and AIMCO, and that IPT and AIMCO will perform substantially
in accordance with such projections. In arriving at its opinion, Lehman Brothers
did not conduct a physical inspection of the properties and facilities of IPT or
AIMCO and did not make or obtain any evaluations or appraisals of the assets or
liabilities of IPT or AIMCO. The IPT Fairness Opinion necessarily is based upon
market, economic and other conditions as they existed on, and could be evaluated
as of, the date of the IPT Fairness Opinion.
 
     The preparation of a fairness opinion involves various determinations as to
the most appropriate and relevant methods of financial and comparative analysis
and the application of those methods to the particular circumstances and,
therefore, such an opinion is not readily susceptible to summary description.
Furthermore, in arriving at the IPT Fairness Opinion, Lehman Brothers did not
attribute any particular weight to any analysis or factor considered by it, but
rather made qualitative judgments as to the significance and relevance of each
analysis and factor. Accordingly, Lehman Brothers believes that its analyses
must be considered as a whole and that considering any portion of its analyses
and factors, without considering all analyses and factors, could create a
misleading or incomplete view of the process underlying the IPT Fairness
Opinion. In its analyses, Lehman Brothers made numerous assumptions with respect
to industry performance, general business and economic conditions and other
matters, many of which are beyond the control of IPT. Any estimates contained in
these analyses are not necessarily indicative of actual values or predictive of
future results or values, which may be significantly more or less favorable than
as set forth therein. In addition, analyses relating to the value of businesses
do not purport to be appraisals or to reflect the prices at which businesses
actually may be sold.
 
VALUATION OF IPT
 
  Comparable Public Company Analysis
 
     Lehman Brothers compared certain publicly available financial and operating
data and projected financial performance (based upon published research
analysts' estimates) of selected publicly traded REITs with similar financial
and operating data and projected financial performance to those of IPT (as
estimated by the management of IPT). The selected REITs reviewed in this
analysis (collectively, the "IPT Comparable Group") were AIMCO, Archstone
Communities, Avalon Bay Communities, Camden Property Trust, Equity Residential
Properties Trust ("Equity Residential"), Merry Land & Investment and United
Dominion Realty Trust. Lehman Brothers analyzed, among other things, the ratios
of equity market value per share to funds from operations ("FFO") per share.
Lehman Brothers then compared the results of its analyses for the IPT Comparable
Group to the corresponding results for IPT. Lehman Brothers calculations
resulted in a range of equity market values per share to projected 1999 FFO per
share for the IPT Comparable Group
 
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<PAGE>   69
 
of 8.1x to 10.4x, with a mean of 9.5x, as compared to IPT at 11.6x (based upon
an assumed IPT value of $13.25 per IPT Common Share).
 
     Because of the inherent differences between the businesses, operations and
prospects of IPT and the businesses, operations and prospects of the companies
included in the IPT Comparable Group, Lehman Brothers believed that it was
inappropriate to, and therefore did not, rely solely on the quantitative results
of the analysis, and accordingly also made qualitative judgments concerning
differences between the financial and operating characteristics of IPT and the
companies in the IPT Comparable Group that would affect the public trading
values of IPT and such comparable companies.
 
  Comparable Transaction Analysis
 
     Lehman Brothers reviewed certain information regarding nine selected
pending or completed business combinations involving REITs owning primarily
apartment properties since 1994. Lehman Brothers reviewed the prices paid in
these transactions in terms of the equity value per share as a multiple of
projected 1999 FFO per share (based upon published research analysts' estimates)
and compared the multiples to the multiples of the financial results for IPT
implied by the IPT Consideration (assumed to be $13.25 per IPT Common Share)
payable pursuant to the Original Merger Agreement. The nine completed business
combinations reviewed in this analysis (collectively, the "IPT Transaction
Comparables") were the acquisition of Security Capital Atlantic by Security
Capital Pacific; the acquisition of Evans Withycombe by Equity Residential; the
acquisition of Wellsford Residential by Equity Residential; the acquisition of
Columbus Realty Trust by Post Properties; the acquisition of Paragon Group by
Camden Property Trust; the acquisition of South West Property Trust by United
Dominion Realty Trust; the acquisition of REIT of California by BRE Properties;
the acquisition of Holly Residential by Wellsford Residential; and the pending
acquisition of Merry Land & Investment by Equity Residential. Lehman Brothers
analyzed multiples of projected 1999 FFO, derived from Lehman Brothers' analysis
of multiples of equity value per share to FFO per share for the IPT Transaction
Comparables, and applied such multiples to the projected 1999 FFO of IPT (as
projected by management of IPT). Lehman Brothers calculations resulted in a
range of equity market values per share to projected 1999 FFO per share of 9.6x
to 14.0x, with a mean of 11.9x, which implies a range of equity values of IPT of
$10.94 to $15.96 per IPT Common Share.
 
     Because the market conditions, rationale and circumstances surrounding each
of the transactions analyzed were specific to each transaction and because of
the inherent differences between the businesses, operations and prospects of IPT
and the acquired businesses analyzed, Lehman Brothers believed that it was
inappropriate to, and therefore did not, rely solely on the quantitative results
of the analysis, and accordingly, also made qualitative judgments concerning
differences between the characteristics of these transactions and the Original
Merger that would affect the acquisition values of IPT and such acquired
companies.
 
  Net Asset Value Analysis
 
     Lehman Brothers calculated the net asset value of IPT's proportionate
interest in the real estate assets owned by IPT, adjusted for total debt
outstanding, to arrive at a range of equity values per IPT Common Share. The
analysis of IPT utilized projections provided by management of IPT. Lehman
Brothers calculated values of IPT's assets based on a range
 
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<PAGE>   70
 
of capitalization rates of 9.45% to 10.45% applied to projected 1998 net
operating income for IPT's real estate assets, plus an adjustment for the
estimated value of non-income producing property. This analysis indicated a
range of imputed equity values (defined as aggregate value minus debt) of IPT of
$12.09 to $13.74 per IPT Common Share.
 
VALUATION OF AIMCO
 
  Comparable Public Company Analysis
 
     Lehman Brothers compared certain publicly available financial and operating
data and projected financial performance (reflecting research analysts'
estimates) of selected publicly traded REITs with similar financial and
operating data and projected financial performance to those of AIMCO (as
estimated by the management of AIMCO). The selected REITs reviewed in this
analysis (collectively, the "AIMCO Comparable Group") were Archstone
Communities, Avalon Bay Communities, Camden Property Trust, Equity Residential,
Merry Land & Investment, and United Dominion Realty Trust. Lehman Brothers
analyzed, among other things, the ratios of equity market value per share to FFO
per share, as well as operating and financial performance data and the capital
structures of the AIMCO Comparable Group. Lehman Brothers then compared the
results of its analyses for the AIMCO Comparable Group to the corresponding
results for AIMCO. Lehman Brothers calculations resulted in the following
relevant ranges for the AIMCO Comparable Group and for AIMCO as of September 29,
1998: a range of equity market value per share to projected 1999 FFO per share
of 8.1x to 10.4x, with a mean of 9.1x (as compared to AIMCO at 9.4x); a range of
dividend yield of 5.4% to 8.7%, with a mean of 7.1% (as compared to AIMCO at
6.3%); a range of annualized dividends per share as a percentage of 1998
projected FFO per share of 60.0% to 69.6%, with a mean of 65.3% (as compared to
AIMCO at 56.8%); and a range of total debt as a percentage of total market
capitalization of 36.1% to 53.4%, with a mean of 42.7% (as compared to AIMCO at
40.8%).
 
     Because of the inherent differences between the businesses, operations and
prospects of AIMCO and the businesses, operations and prospects of the companies
included in the AIMCO Comparable Group, Lehman Brothers believed that it was
inappropriate to, and therefore did not, rely solely on the quantitative results
of the analysis, and accordingly also made qualitative judgments concerning
differences between the financial and operating characteristics of AIMCO and the
companies in the AIMCO Comparable Group that would affect the public trading
values of AIMCO and such comparable companies.
 
  Discounted Cash Flow Analysis
 
     Lehman Brothers performed a discounted cash flow analysis of AIMCO to
arrive at a discounted cash flow valuation of AIMCO. Lehman Brothers used
estimates of projected financial performance prepared by AIMCO's management for
the year 1998 through the year 2002 based on assumptions provided by AIMCO's
management. Utilizing these projections, Lehman Brothers calculated a range of
values based upon (a) the sum of the discounted net present value of the
projected stream of cash flow for AIMCO to the year 2002 and (b) the projected
terminal value of AIMCO at that year based upon a range of multiples of
projected FFO. Lehman Brothers selected, in its subjective judgment, discount
rates ranging from 15% to 17% and terminal multiples of FFO ranging from 9.0x to
11.0x. Using this methodology, the range of equity values of AIMCO was
calculated to be $33.09 to $39.97 per share of AIMCO Common Stock on a fully
diluted basis.
 
                                       64
<PAGE>   71
 
  Net Asset Value Analysis
 
     Lehman Brothers calculated the net asset value of the real estate assets
owned by AIMCO, as well as the value of the non-real estate franchise and
management businesses owned by AIMCO, and adjusted for total debt outstanding
and other liabilities to arrive at a range of equity values per share of AIMCO
Common Stock. The analysis of AIMCO performed by Lehman Brothers utilized
projections of AIMCO Common Stock provided by management. Lehman Brothers
calculated values of AIMCO's assets based on a range of capitalization rates of
8.75% to 9.25% applied to projected one-year-forward operating income for
AIMCO's real estate assets, a range of multiples of EBITDA of 8.0x to 12.0x
applied to 1998 projected EBITDA for AIMCO's management businesses, plus an
adjustment for the estimated value of non-income producing property. This
analysis indicated a range of imputed equity values (defined as aggregate value
minus debt) of AIMCO of $30.67 to $34.92 per share of AIMCO Common Stock on a
fully-diluted basis.
 
  Stock Trading Analysis
 
     Lehman Brothers considered various historical data concerning the trading
prices for AIMCO Common Stock for the period from September 25, 1997 to
September 25, 1998. At September 25, 1998, the closing price of a share of AIMCO
Common Stock was $37.25. Lehman Brothers calculated the average closing share
price of shares of AIMCO Common Stock for following time periods leading up to
and ending with September 25, 1998: one week ($36.50), one month ($35.19), three
months ($37.51), six months ($37.79), and one year ($36.96).
 
  Fees and Potential Conflicts
 
     Lehman Brothers is an internationally recognized investment banking firm
and, as part of its investment banking activities, is regularly engaged in the
evaluation of businesses and their securities in connection with mergers and
acquisitions, negotiated underwritings, competitive bids, secondary
distributions of listed and unlisted securities, private placements and
valuations for corporate and other purposes. The IPT Board selected Lehman
Brothers because of its expertise, reputation and familiarity with IPT in
particular and the real estate industry in general, and because its investment
banking professionals have substantial experience in transactions similar to the
Original Merger.
 
     As compensation for its services in connection with the Original Merger,
IPT has paid Lehman Brothers a fee of $750,000. IPT has also agreed to reimburse
Lehman Brothers for up to $25,000 of its reasonable expenses (including, without
limitation, professional and legal fees and disbursements) incurred in
connection with its engagement, and to indemnify Lehman Brothers and certain
related persons against certain liabilities in connection with its engagement,
including certain liabilities under Federal securities laws.
 
     Lehman Brothers is currently a lender under IPT's credit facility, New
Insignia's credit facility and AIMCO's unsecured term loan. Lehman Brothers also
was a lender under a $300 million credit facility with IFG, which was repaid at
the time of the IFG Merger with the proceeds of AIMCO's unsecured term loan
facility. At March 17, 1998 and October 1, 1998, the dates of opinions rendered
by Lehman Brothers to IFG and IPT, Lehman Brothers and an officer thereof owned
an aggregate of 510,000 IPT Common Shares. Lehman Brothers has also performed
various investment banking services for IPT, IFG, New Insignia and AIMCO in the
past, for which it has received customary fees. In the ordinary course of its
business, Lehman Brothers actively trades in the debt and equity
 
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<PAGE>   72
 
securities of IPT, New Insignia, and AIMCO for its own account and for the
accounts of its customers and, accordingly, may at any time hold a long or short
position in these securities.
 
     Copies of the IPT Fairness Opinion are available for inspection and copying
at the principal executive office of IPT during its regular business hours by
any interested IPT shareholder or such holder's representative who has been
designated in writing.
 
CERTAIN PROJECTED FINANCIAL INFORMATION AND FORWARD-LOOKING STATEMENTS
 
     IPT and AIMCO do not, as a matter of course, make public forecasts or
projections as to future revenues, earnings or other income statement data, cash
flows or balance sheet and financial position information. However, in
connection with IFG's and AIMCO's review of a possible transaction between them,
IPT and AIMCO furnished one another with certain projections (the "Projections")
prepared by their respective managements and, therefore, a summary of the
Projections are included herein.
 
     The Projections were not prepared with a view toward public disclosure or
compliance with published guidelines of the Securities and Exchange Commission
(the "SEC") or the American Institute of Certified Public Accountants regarding
forward-looking information or GAAP. None of IPT's independent auditors, AIMCO's
independent auditors or any other independent accountants, have compiled,
examined, or performed any procedures with respect to the prospective financial
information contained herein, nor have they expressed any opinion or given any
form of assurance on such information or its achievability, and assume no
responsibility for, and disclaim any association with, the prospective financial
information. Furthermore, the Projections necessarily make numerous assumptions,
some (but not all) of which are set forth below and many of which are beyond the
control of IPT or AIMCO, as the case may be, and may prove not to have been, or
may no longer be, accurate. Additionally, this information, except as otherwise
indicated, does not reflect revised prospects for the businesses of IPT and
AIMCO, changes in general business and economic conditions, or any other
transaction or event that has occurred or that may occur and that was not
anticipated at the time such information was prepared. Accordingly, such
information is not necessarily indicative of current values or future
performance, which may be significantly more favorable or less favorable than as
set forth below, and should not be regarded as a representation that they will
be achieved.
 
     IPT shareholders should understand that the following important factors, in
addition to those discussed elsewhere herein and in the documents which are
incorporated by reference into this Information Statement/Prospectus, could
affect the future results of IPT and AIMCO and could cause results to differ
materially from those expressed in such forward-looking statements and the
Projections: (i) the effect of economic conditions; (ii) outstanding
indebtedness and leverage of IPT and AIMCO; (iii) restrictions imposed by the
terms of indebtedness of IPT and AIMCO; (iv) changes in rental revenue which are
caused by changes in national and local economic conditions, the demographic
characteristics of IPT's and AIMCO's markets and other factors outside IPT's and
AIMCO's control; (v) the terms and results of tender offers made by IPT and
AIMCO; (vi) future capital requirements; (vii) the impact of competition in each
of IPT's and AIMCO's markets; (viii) the loss of key employees; (ix) the impact
of litigation; and (x) other factors that may be described from time to time in
filings of IPT and AIMCO with the SEC.
 
                                       66
<PAGE>   73
 
     The Projections that have been prepared by IPT (the "IPT Projections") were
based upon estimates of the market for multifamily housing units and IPT's own
performance through 2002, which IPT believed to be reasonable at the time they
were made. The IPT Projections do not, and were not intended to, include the
benefits of any strategic transaction. The estimates which follow for 1998 were
based upon actual results through August 31, 1998 and management forecasts for
the remainder of the year. In the IPT Projections, IPT assumed that (1) rental
revenues would increase at an estimated average rate of 3% per year; (2)
operating expenses would increase at an estimated average rate of 3% per year;
(3) estimated monthly capital expenditures ("CapEx") would be equal to the
average between budgeted CapEx and actual CapEx incurred through August 31,
1998; (4) estimated cash balances would earn interest at an estimated rate of
4%; (5) estimated bank borrowings would bear interest at an estimated rate of
8.2%; (6) the results of tender offers for limited partner interests in the IPT
Partnerships would add an estimated $5.3 million to FFO; (7) AMIT would add an
estimated $2.3 million to FFO; (8) general and administrative expenses would be
consistent with 1998 levels; and (9) the estimated aggregate cost of tender
offers made through 1999 would aggregate approximately $27.4 million. Based upon
the material assumptions set forth above and other matters, IPT projected 1999
FFO to be $1.14 per IPT Common Share.
 
     The Projections that have been prepared by AIMCO (the "AIMCO Projections")
are based upon certain estimates and assumptions and provide support for the
statements made by representatives of AIMCO, following the announcement of the
IFG Merger, that the IFG Merger will result in an increase in AIMCO's
profitability by more than 14 cents per share and that the IFG Merger creates a
number of potential opportunities for AIMCO, including the opportunity for AIMCO
to offer to acquire limited partnership interests in IFG affiliated partnerships
that might increase AIMCO's profitability by up to 90 cents per share. The
statement concerning the 14 cents per share increase was based on a number of
estimates and assumptions, including that (a) AIMCO's operation of IFG's
multifamily apartment business will result in revenues and expenses consistent
with the historical operation of such business and (b) the IFG Merger will
result in cost savings of $7.2 million due to elimination of duplicative
corporate overhead. The statement concerning the 90 cents per share increase was
also based on a number of estimates and assumptions, including that (i)
properties owned by the affiliated partnerships are encumbered by mortgage debt
equal to 50% to 55% of such property's value (on average), (ii) AIMCO will make
a tender offer for up to all of the units in each of the limited partnerships
which own the properties, (iii) such tender offers will result in tenders of all
such limited partnership units and all such units will be accepted for purchase
by AIMCO, (iv) AIMCO will pay one half of the purchase price for such units in
AIMCO Common Stock (or OP Units redeemable for such stock) valued at $40.00 per
share (on average) and one half obtained from borrowing at an annual interest
rate of 7.5% and (v) AIMCO will achieve a 9.75% capitalization rate on free cash
flow generated by the partnerships.
 
     AIMCO has not made any final determination as to which of the partnerships,
if any, it intends to make tender offers to purchase partnership units or the
prices at which it will make any such tender offers. At this time, AIMCO does
not consider these tender offers to be probable, within the meaning of
Regulation S-X under the Securities Act of 1933, as amended (the "Securities
Act"). AIMCO currently anticipates that it will evaluate the possibility of
tendering on any partnership which represents a profitable investment for
 
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<PAGE>   74
 
AIMCO. AIMCO does not anticipate that all tenders will result in a 100%
acceptance rate.
 
     In connection with the IFG Merger, AIMCO estimated the value of each
property owned by IFG affiliated partnerships and thus determined an estimate of
AIMCO's cost for general partnership units and any limited partnership units
held by AIMCO in each partnership owning such properties. AIMCO's statement
concerning its estimate of its increased profitability was based on an assumed
tender offer price per limited partnership unit generally comparable to AIMCO's
estimate of AIMCO's cost per general partnership unit and any cost per limited
partnership unit.
 
     At this time AIMCO is unable to predict, if it makes any or all of the
tender offers, how it will fund the purchase of the partnership units, and
funding such purchases will be made on a case-by-case basis at the time of the
tenders, although it is likely that funds will be obtained from operations,
equity issuances and short term borrowings. AIMCO's experience in past tender
offers was considered in its estimate of the source of funding for the tender
offers for the partnerships affiliated with AIMCO.
 
     Although AIMCO believes the estimates, and the assumptions upon which such
estimates are based, are reasonable, there can be no assurance that AIMCO will
make tender offers for, or will be successful in tendering for or otherwise
acquiring the interests in, these partnerships or that, even if such interests
are acquired, they will be accretive at the levels set forth above. As of the
date of this Information Statement/Prospectus, AIMCO has not updated such
estimates and the assumptions upon which such estimates are based. The estimate
set forth above is necessarily based on a number of estimates and assumptions
that are inherently subject to significant uncertainties and contingencies, many
of which are completely beyond the control of AIMCO. The inclusion of the
estimate should not be construed as any representation that the estimated
results will in fact be realized.
 
     Shareholders of IPT are cautioned not to place undue reliance or weight on
such estimate. The statement concerning AIMCO's potential profitability contains
information which is forward looking within the meaning of the Private
Securities Litigation Reform Act of 1995.
 
     THE FOREGOING PROJECTIONS ARE NOT GUARANTEES OF PERFORMANCE. THEY INVOLVE
RISKS, UNCERTAINTIES AND ASSUMPTIONS. THE FUTURE RESULTS AND SHAREHOLDER VALUE
OF IPT AND AIMCO MAY MATERIALLY DIFFER FROM THOSE EXPRESSED IN THE PROJECTIONS.
MANY OF THE FACTORS THAT WILL DETERMINE THESE RESULTS AND VALUES ARE BEYOND THE
ABILITY OF IPT OR AIMCO TO CONTROL OR PREDICT. SHAREHOLDERS ARE CAUTIONED NOT TO
PLACE UNDUE RELIANCE ON THE PROJECTIONS. THERE CAN BE NO ASSURANCE THAT THE
PROJECTIONS WILL BE REALIZED OR THAT THE FUTURE FINANCIAL RESULTS OF IPT OR
AIMCO WILL NOT MATERIALLY ADVERSELY VARY FROM THE PROJECTIONS. NEITHER IPT NOR
AIMCO INTENDS TO UPDATE OR REVISE THE PROJECTIONS.
 
INTERESTS OF TRUSTEES AND MANAGEMENT OF IPT IN THE MERGER
 
     Certain current and former members of the IPT Board and executive officers
of IPT have interests in the transactions contemplated under the Merger
Agreement that may present them with potential conflicts of interest. The
Approving IPT Board was aware of these potential conflicts at the time of its
consideration of the Original Merger. See "Risk Factors -- Possible Conflicts of
Interest of IPT's Executive Officers and Trustees in the Merger."
 
                                       68
<PAGE>   75
 
     Since the execution of the Original Merger Agreement on October 2, 1998,
IPT has accepted the resignations of Ronald Uretta and Ronald J. Consiglio from
the IPT Board and increased the size of the IPT Board to eleven persons. The
AIMCO-nominated Trustees were elected as a trustees of IPT. In addition, IPT
caused the officer candidates designated by AIMCO to be appointed to their
respective positions. IPT also established a committee of the IPT Board,
consisting of two AIMCO-nominated Trustees (the "AIMCO Committee"), authorized
and empowered to act to the extent set forth in the IPT Bylaws, and recognized
that the Continuing Trustees are authorized and empowered to act to the extent
set forth in the IPT Bylaws. Furthermore, IPT established an executive committee
of the IPT Board (the "Executive Committee") consisting solely of four
AIMCO-nominated Trustees (Terry Considine, Peter K. Kompaniez, Patrick J. Foye
and Thomas W. Toomey) to act to the extent set forth in the IPT Bylaws. All of
these appointments were contemplated by the Original Merger Agreement.
 
     Six of AIMCO's executive officers have become members of the IPT Board and
executive officers of IPT. While such individuals owe duties to IPT and its
shareholders, they also owe the same duties to AIMCO and its stockholders. Thus,
conflicts of interests could develop.
 
     In connection with the IFG Merger and the Original Merger, certain trustees
and officers of IPT entered into arrangements with AIMCO, received shares of
stock of AIMCO and received certain employee benefits. See "Risk
Factors -- Possible Conflicts of Interest of IPT's Executive Officers and
Trustees in the Merger."
 
AIMCO'S RELATIONSHIP WITH IPLP
 
     Substantially all of IPT's assets are held through IPLP, IPT's operating
subsidiary. IPLP has two partners: IPT, which is the sole general partner and
owns approximately 70% of the IPLP OP Units and the AIMCO Operating Partnership,
which is designated as the special limited partner and owns approximately 30% of
the outstanding IPLP OP Units. See "Description of IPT -- The IPLP Partnership
Agreement."
 
     On December 7, 1998, the AIMCO Operating Partnership and IPLP entered into
an assignment and assumption agreement that amended and restated a similar
agreement dated as of October 1, 1998 (the "IPLP Assignment Agreement").
Pursuant to the IPLP Assignment Agreement, IPLP transferred the economic rights
to a substantial portion of its assets (the "Assets") to the AIMCO Operating
Partnership, and the AIMCO Operating Partnership assumed all of the obligations
of IPLP related to the Assets in exchange (the "IPLP Exchange") for
approximately 10.2 million limited partnership units of the AIMCO Operating
Partnership ("OP Units"). As required by the IPT Bylaws, the AIMCO-nominated
Trustees approved the transfer as in the best interests of the partners of IPLP
because such transfer was required by the IFG Merger Agreement and completed to
avoid potential adverse tax consequences to AIMCO. Immediately following the
IPLP Exchange, the sole assets owned by IPLP consisted of (i) a 100% ownership
interest in Cooper River Properties, LLC ("Cooper River") (which in turn owns
limited partner units in a number of publicly-traded limited partnerships), (ii)
cash, (iii) IPLP's rights under that certain Credit Agreement among IPLP, Lehman
Syndicated Loan Funding Trust, as syndication agent, First Union National Bank,
as administrative agent, and the lenders from time to time parties thereto (the
"IPLP Credit Agreement"), (iv) approximately 10.2 million OP Units and (v) all
residual rights under the Assets (which have insignificant economic value).
                                       69
<PAGE>   76
 
     IPT is required by the partnership agreement of IPLP to cause AIMCO (as
successor to IFG) to be retained to provide (1) property management services
with respect to virtually all properties controlled (directly or indirectly) by
IPT and (2) partnership administration services to certain of the partnerships
controlled by IPT. IPT also has engaged AIMCO to provide certain real estate and
securities acquisition and disposition services to IPT and IPLP.
 
     On October 16, 1998, IPLP provided approximately $17.1 million to the AIMCO
Operating Partnership to fund its subsidiary limited partnerships formed to
acquire seven multifamily residential properties from an unaffiliated third
party. In consideration for such amount, the AIMCO Operating Partnership
assigned all of the economic rights to its limited partnership interests in such
subsidiaries to IPLP.
 
CERTAIN EFFECTS OF THE MERGER; PLANS FOR IPT AFTER THE MERGER
 
     At the Effective Time, (i) the charter of AIMCO, as in effect immediately
prior to the Effective Time, will be the charter of the surviving entity until
thereafter amended as provided by law and the charter of AIMCO, (ii) the by-laws
of AIMCO as in effect immediately prior to the Effective Time, will be the
by-laws of the surviving entity until thereafter amended as provided by law, the
charter of AIMCO and such by-laws and (iii) the directors and officers of AIMCO,
immediately prior to the Effective Time will be the initial directors and
officers, respectively, of the surviving entity.
 
     Following the completion of the Merger, AIMCO will be the sole beneficiary
of any future earnings and growth of IPT's businesses and will have the ability
to benefit from any divestiture of IPT's businesses or assets in the future. At
the time of the Merger, the Minority Holders will cease to have any ownership
interests in, or rights as shareholders of, IPT. Following the Merger, assuming
AIMCO consummates the Merger using shares of AIMCO Common Stock as part or all
of the merger consideration, former IPT shareholders will, through their holding
of shares of AIMCO Common Stock, benefit from any increase in the value of AIMCO
or any payment of dividends on the AIMCO Common Stock and will bear the risk of
any decrease in the value of AIMCO.
 
     As a result of the Merger, there will be no public market for the IPT
Common Shares. On the closing date, IPT Common Shares will cease to be quoted on
the American Stock Exchange, and price quotations with respect to sales of IPT
Common Shares in the public market will no longer be available. In addition,
registration of the IPT Common Shares under the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), will be terminated. This termination will make
certain provisions of the Exchange Act, such as the short-swing profit recovery
provisions of Section 16(b) and the requirement under the proxy rules of
Regulation 14A of furnishing a proxy or information statement in connection with
shareholders meetings, no longer applicable to IPT. After termination of its
registration, IPT will no longer be required to file periodic reports with the
SEC.
 
FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER
 
     The following is a summary of the material Federal income tax consequences
of the Merger to holders of IPT Common Shares. This summary is based on the
Internal Revenue Code of 1986, as amended (the "Code"), regulations promulgated
by the U.S. Treasury Department (the "Treasury Regulations"), administrative
rulings and pronounce-
 
                                       70
<PAGE>   77
 
ments, and judicial decisions all as of the date hereof and all of which are
subject to change (possibly with retroactive effect). This summary assumes that
IPT shareholders hold their IPT Common Shares as capital assets within the
meaning of Section 1221 of the Code (generally, property held for investment).
This summary does not address all aspects of Federal taxation that may be
relevant to particular holders of IPT Common Shares in light of their personal
investment circumstances or to holders of IPT Common Shares subject to special
treatment under the Code (including financial institutions, tax-exempt
organizations, insurance companies, broker-dealers, regulated investment
companies, holders who received IPT Common Shares through the exercise of
employee stock options or otherwise as compensation, foreign corporations,
persons who are not citizens or residents of the United States and persons
holding IPT Common Shares as part of a "straddle," "hedge," "conversion
transaction," "synthetic security" or other integrated investment) who may be
subject to tax rules that differ significantly from those described below. This
summary also does not discuss any foreign, state or local tax consequences of
the Merger. HOLDERS OF IPT COMMON SHARES ARE URGED TO CONSULT THEIR TAX ADVISORS
WITH RESPECT TO THEIR PARTICULAR TAX CONSEQUENCES OF THE MERGER, INCLUDING THE
APPLICATION AND EFFECT OF ANY STATE, LOCAL OR FOREIGN TAX LAWS AND OF CHANGES IN
APPLICABLE TAX LAWS.
 
     IPT has received an opinion of Skadden, Arps, Slate, Meagher & Flom LLP,
counsel to AIMCO, to the effect that, for Federal income tax purposes, unless
AIMCO elects to pay the merger consideration solely in cash, the Merger will
constitute a "reorganization" within the meaning of section 368(a) of the Code
and that each of AIMCO and IPT will be a "party to the reorganization" within
the meaning of section 368(b) of the Code. The opinion of Skadden, Arps, Slate,
Meagher & Flom LLP is based upon certain assumptions and conditioned upon
representations and covenants made by AIMCO and IPT (which representations and
covenants will be reconfirmed prior to the closing of the Merger). An opinion of
counsel is not binding on the IRS or the courts, and no assurance can be given
that the IRS will not challenge the tax treatment of the Merger.
 
  Stock Consideration Received in the Merger
 
     Provided the Merger qualifies as a reorganization within the meaning of
section 368(a) of the Code: (i) no gain or loss will be recognized by IPT
shareholders on the receipt of shares of AIMCO Common Stock in the Merger; (ii)
the holding period of the AIMCO Common Stock received by IPT shareholders in the
Merger will include the holding period of the IPT Common Shares surrendered in
exchange therefor, provided such IPT Common Shares were held as a capital asset
at the consummation of the Merger; and (iii) the tax basis of the shares of
AIMCO Common Stock received by IPT shareholders in the Merger will be the same
as the tax basis of the IPT Common Shares exchanged therefor, increased by any
gain recognized and reduced by any cash received in the Merger.
 
  Cash Consideration Received in the Merger
 
     If AIMCO pays cash as consideration in the Merger, each IPT shareholder
must recognize, for Federal income tax purposes, its gain realized on the
exchange of IPT Common Shares as a result of the Merger, but only to the extent
of the cash received. The amount of gain, if any, realized by an IPT shareholder
in the exchange of IPT Common Shares as a result of the Merger would be the
difference between such IPT shareholder's basis in the IPT Common Shares
exchanged and the cash and fair market value of the
 
                                       71
<PAGE>   78
 
AIMCO Common Stock received in the Merger. The receipt of cash will not,
however, permit the IPT shareholder to recognize any loss that may be realized
on the exchange of IPT Common Shares as a result of Merger. AIMCO has agreed
that if it elects to pay cash and AIMCO Common Stock as consideration in the
Merger, no more than 17% of such consideration will be paid in cash.
 
  Cash Received for Fractional Shares
 
     Cash received by an IPT shareholder in lieu of a fractional share of AIMCO
Common Stock will be treated, for Federal income tax purposes, as if such
fractional share was actually received and then redeemed for cash and, in
general, gain or loss will be recognized measured by the difference between the
amount of cash received for such fractional share and the basis of the IPT
Common Shares allocable to such fractional share. Such gain or loss will
generally constitute capital gain or loss if the IPT Common Shares were held as
capital assets at the time of the consummation of the Merger.
 
  AIMCO Cash Election
 
     If AIMCO elects to pay the merger consideration solely in cash, the Merger
will not qualify as a reorganization and each IPT shareholder will recognize
taxable gain or loss in an amount by which the cash received exceeds or is less
than such shareholder's adjusted tax basis in its IPT Common Shares.
 
  IPT Distributions
 
     IPT distributions declared prior to the consummation of the Merger will be
subject to tax as ordinary income to the extent of IPT's earnings and profits
(unless and to the extent designated by IPT as capital gain income) and will not
be eligible for the dividends received deduction generally available to
corporations. To the extent such distributions are in excess of IPT's earnings
and profits, a holder of IPT Common Shares will receive such distribution as a
tax-free return of capital to the extent of such holder's adjusted tax basis in
its shares, and thereafter as long-term capital gain (or short term capital gain
if the shares have been held for one year or less). The Merger Agreement
provides that IPT may pay extraordinary distributions prior to the consummation
of the Merger to the extent necessary for IPT to qualify as a REIT.
 
  Maximum Tax Rates
 
     The maximum individual Federal income tax rate (which applies to ordinary
income and gains from the sale or exchange of capital assets held for one year
or less) is 39.6%. The maximum individual Federal income tax rate on gains from
the sale of capital assets held for more than one year is 20%. The maximum
corporate Federal income tax rate (which applies to ordinary income and capital
gains) is 35%.
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for by AIMCO under the "purchase" method of
accounting, in accordance with GAAP. After the Merger, the results of operations
of IPT will be included in the consolidated financial statements of AIMCO. The
purchase price will be allocated based on the fair values of the assets acquired
and liabilities assumed, at the time and date that the Merger becomes effective
pursuant to the Corporations and
 
                                       72
<PAGE>   79
 
Associations Article of the Annotated Code of Maryland. Such allocations will be
made based upon valuations and other studies that have not yet been finalized.
 
NO APPRAISAL RIGHTS
 
     Under Maryland law, objecting shareholders of a Maryland real estate
investment trust that is party to a merger cannot demand fair value if the
shares are listed on a national securities exchange on the record date for
determining shareholders entitled to vote on the merger. Because the IPT Common
Shares are listed on the American Stock Exchange, the holders of IPT Common
Shares will not have objecting shareholders' rights to fair value in connection
with the Merger. Maryland law does not provide IPT shareholders with additional
rights in lieu of appraisal rights other than remedies for breaches of duties.
 
REGULATORY MATTERS
 
     Although clearance by HUD is not a condition to completion of the Merger
and may not be required under HUD regulations, AIMCO has applied for approval
from HUD to acquire a 10% or greater stock interest in IPT, whose subsidiaries
hold an ownership interest in certain apartment properties assisted or insured
by HUD. HUD approved AIMCO's acquisition of IFG in connection with a settlement
agreement with HUD. In connection with such settlement AIMCO paid to HUD a
settlement fee in an immaterial amount which was charged against liabilities
established in connection with the IFG purchase accounting adjustments. See
"Risk Factors -- Risks Relating to the Merger if You Receive Class A Common
Stock of AIMCO in the Merger -- Risks Relating to Regulation of Affordable
Housing."
 
MARYLAND PROHIBITION OF BUSINESS COMBINATION TRANSACTIONS
 
     Section 3-602 of the Maryland General Corporation law ("MGCL") prohibits
business combination transactions involving a Maryland corporation (which is
defined to include a Maryland real estate investment trust such as IPT) and an
"interested stockholder" (defined generally as any person, or affiliate or
associate (as defined in the MGCL) thereof, that beneficially owns 10% or more
of the outstanding voting stock of the subject corporation), for five years
following the date such person became an interested stockholder, unless special
requirements are met or certain exceptions apply. An exception applies if the
business combination is exempted from the requirements of Section 3-602 of the
MGCL by a resolution adopted by such corporation's board of directors prior to
the date on which the interested stockholder became such. The IPT Board, as
constituted at such time, passed such a resolution on March 13, 1998, to exempt
any business combination between IPT and AIMCO from Section 3-602 of the MGCL
and the Declaration of Trust of IPT exempts IFG and any successor (which would
include AIMCO) from the requirements of Section 3-602 of the MGCL. Thus, the
Merger is not prohibited by Section 3-602 of the MGCL.
 
STOCK EXCHANGE LISTING
 
     Application will be made to have the shares of AIMCO Common Stock, which
may be issued to IPT shareholders in connection with the Merger, approved for
listing on the NYSE.
 
                                       73
<PAGE>   80
 
TRANSACTION COSTS
 
     The following table sets forth an estimate of the expected out of pocket
costs of incurred in connection with the Merger. Each of IPT and AIMCO will pay
their respective costs out of available cash on hand.
 
<TABLE>
<CAPTION>
                                                    IPT         AIMCO
                                                 ----------   ----------
<S>                                              <C>          <C>
Investment banking fees and expenses...........  $  775,000   $       --
Legal fees and expenses........................     500,000      900,000
Accounting fees and expenses...................     100,000      150,000
Printing.......................................     550,000      550,000
SEC and NYSE filing fees.......................          --      100,000
Miscellaneous..................................      50,000       50,000
                                                 ----------   ----------
                                                 $1,975,000   $1,750,000
                                                 ==========   ==========
</TABLE>
 
RESTRICTIONS ON RESALES BY AFFILIATES
 
     The shares of AIMCO Common Stock that may be issued in the Merger will be
freely transferable, except that shares issued to any person who was a
shareholder of IPT who may be deemed to be an "affiliate" (as defined under the
Securities Act and which generally includes, without limitation, directors,
certain executive officers and beneficial owners of 10% or more of a class of
capital stock) of IPT for purposes of Rule 145 under the Securities Act may be
resold by them only in transactions permitted by the resale provisions of Rule
145 or as otherwise permitted under the Securities Act.
 
                                       74
<PAGE>   81
 
                  THE MERGER AGREEMENT AND TERMS OF THE MERGER
 
     The following is a brief summary of certain provisions of the Merger
Agreement. A copy of the Merger Agreement is included at the back of this
Information Statement/ Prospectus as Annex A. This summary does not purport to
be complete and is qualified in its entirety by reference to the Merger
Agreement. We urge all shareholders to read the Merger Agreement in its entirety
for a complete description of the terms of the Merger.
 
THE MERGER
 
     The Merger Agreement provides for the merger of IPT with and into AIMCO,
with AIMCO surviving in accordance with the laws of the State of Maryland
following the approval of the Merger by the shareholders of IPT and the
satisfaction or waiver of the other conditions to the Merger.
 
CLOSING DATE; EFFECTIVE TIME
 
     On the date on which the Merger is completed (the "Closing Date"), AIMCO
and IPT will execute articles of merger and file them with the State Department
of Assessments and Taxation of Maryland pursuant to the Corporations and
Associations Article of the Annotated Code of Maryland ("MCAA") and the MGCL.
The Merger will become effective upon the acceptance of the articles of merger
by the State Department of Assessments and Taxation of Maryland (the "Effective
Time").
 
CHARTER, BYLAWS AND DIRECTORS AND OFFICERS
 
     At the Effective Time: (i) the charter of AIMCO, as in effect immediately
prior to the Effective Time, will be the charter of the surviving entity until
thereafter amended as provided by law and the charter of AIMCO; (ii) the bylaws
of AIMCO, as in effect immediately prior to the Effective Time, will be the
bylaws of the surviving entity until thereafter amended as provided by law, the
charter of AIMCO and such bylaws; and (iii) the directors and officers of AIMCO
immediately prior to the Effective Time will be the initial directors and
officers of the surviving entity. The additional effects of the Merger will be
as provided in the applicable provisions of the MCAA and the MGCL.
 
THE CLOSING
 
     The completion of the Merger (the "Closing") will take place on the
business day on which all of the conditions set forth in the Merger Agreement
are either fulfilled or waived (expected to be the date of the Special Meeting),
provided that all such conditions continue to be so satisfied or waived on such
day. If the conditions are not satisfied or waived on such day, the Closing will
be automatically extended until the first day on which all such conditions are
again so satisfied or waived, subject, however, to the provisions relating to
termination of the Merger Agreement described below. The Closing may take place
at such other time, date and place as AIMCO and IPT mutually agree.
 
MANNER AND BASIS OF CONVERTING IPT COMMON SHARES
 
     As of the Effective Time, by virtue of the Merger and without any action on
the part of any IPT shareholder, all issued and outstanding IPT Common Shares,
other than IPT Common Shares owned directly or indirectly by AIMCO or IPT (the
"Outstanding IPT Common Shares") and unvested restricted IPT Common Shares, will
be converted into
 
                                       75
<PAGE>   82
 
and become the right to receive AIMCO Common Stock, cash or a combination of
both (the "Merger Consideration"). The amount of such consideration will depend
upon when the Effective Time occurs, whether and to what extent AIMCO elects to
pay the Merger Consideration in cash, and if the Merger Consideration consists
of AIMCO Common Stock, the AIMCO Exchange Value. If the Effective Time is on or
after March 1, 1999, the Merger Consideration will consist only of shares of
AIMCO Common Stock, except in limited circumstances.
 
     Regardless of when the Effective Time occurs, each Outstanding IPT Common
Share will be converted into and become the right to receive the sum of (a) an
amount in cash equal to the Cash Amount multiplied by the Cash Percentage and
(b) the number of shares of AIMCO Common Stock equal to the Conversion Ratio
multiplied by the Stock Percentage. At least 12-NYSE trading days prior to the
Special Meeting, AIMCO will notify IPT of the Cash Percentage it has elected,
and IPT will issue a press release announcing the Cash Percentage and Stock
Percentage.
 
     "Cash Amount" means an amount equal to: (a) $13.25; plus (b) if the
Effective Time occurs on or after February 1 and on or before February 28, 1999,
$.0036 multiplied by the number of days that have elapsed from and including
January 1, 1999 through and including the day immediately preceding the
Effective Time; and minus (c) the Excess Distribution Amount.
 
     "Cash Percentage" means the percentage portion, from 0% to 100%, of merger
consideration that AIMCO elects to pay in cash, which, if AIMCO fails to make
such an election, will be deemed to be 0%; provided, however, that (a) if the
Effective Time occurs after February 28, 1998, the Cash Percentage shall be 0%
and (b) if AIMCO is unable to deliver certain tax opinions at the Closing, the
Cash Percentage shall be 100%.
 
     "Conversion Ratio" means an amount equal to $13.28 minus the Excess
Distribution Amount divided by the AIMCO Exchange Value.
 
     "Excess Distribution Amount" means the aggregate per IPT Common Share
amount of any distributions that IPT makes on the IPT Common Shares necessary to
meet the distribution requirements applicable to REITs under the Code.
 
     "Stock Percentage" means 100% minus the Cash Percentage.
 
    No fractional shares of AIMCO Common Stock will be issued in connection with
the Merger. In lieu of any fractional shares of AIMCO Common Stock, each holder
of an IPT Common Share that otherwise would be entitled to a fractional share of
AIMCO Common Stock will receive cash equal to such shareholder's proportionate
interest in a share of AIMCO Common Stock multiplied by the AIMCO Reference
Price (a 10-NYSE trading day driven average), determined as of the Effective
Time.
 
    All Outstanding IPT Common Shares, when converted, will automatically be
canceled. Each holder of a certificate that, immediately prior to the Effective
Time represented an Outstanding IPT Common Share, when such Outstanding IPT
Common Share is converted, will cease to have any rights with respect thereto,
except (i) the right to receive any dividends or other distributions on IPT
Common Shares with a record date prior to the Effective Time, and (ii) upon the
surrender of such certificate, (x) the right to receive the Merger Consideration
and (y) to the extent the Merger Consideration consists of AIMCO Common Stock,
any dividend or other distribution on the AIMCO
 
                                       76
<PAGE>   83
 
Common Stock with a record date on or after the Effective Time and paid prior to
the time such certificate is surrendered.
 
    At the Effective Time, each unvested restricted IPT Common Share will be
assumed by AIMCO and converted into that number of restricted shares of AIMCO
Common Stock equal to $13.28 divided by the AIMCO Exchange Value and will
continue to be subject to substantially the same terms and conditions in effect
immediately prior to the Effective Time. AIMCO will cause such restricted shares
of AIMCO Common Stock to be covered by an effective registration statement, and
will use its reasonable best efforts to maintain the effectiveness of such
registration statement (and maintain the current status of the prospectus
contained in the registration statement) for so long as the restricted shares
remain outstanding.
 
REPRESENTATIONS AND WARRANTIES
 
    The Merger Agreement contains certain representations and warranties by the
parties. Each of AIMCO and IPT has made certain representations and warranties
to the other regarding, among other things, (a) organization and qualifications;
(b) capitalization; (c) authority to enter into the Merger Agreement and to
consummate the transactions contemplated by the Merger Agreement; (d) compliance
of the transactions contemplated by the Merger Agreement with its charter or
declaration of trust and bylaws; (e) tax matters; (f) brokers fees; and (g)
absence of inducement in entering into the Merger Agreement by any
representations, warranties or statements not set forth or referred to in the
Merger Agreement.
 
     The Merger Agreement also contains representations by each party,
individually. AIMCO has made certain representations and warranties as to: (a)
required filings and approvals; (b) the accuracy and completeness of its filings
with the SEC, as required under the Exchange Act; (c) absence of conflicts with
agreements, laws and constituent documents caused by the Merger Agreement or the
transactions contemplated by the Merger Agreement; (d) the absence of certain
material adverse changes or events; and (e) the information provided for
inclusion in this Information Statement/Prospectus and the registration
statement of which it is a part. IPT has made certain representations and
warranties regarding: (a) IPLP; (b) its earnings and profits; (c) the
shareholder vote required; (d) the AMIT Merger; and (e) its receipt of the IPT
Fairness Opinion.
 
CERTAIN COVENANTS
 
  IPT and IPLP Distributions
 
     IPT agreed that it will not declare or pay distributions on the IPT Common
Shares except as set forth below.
 
     On a date prior to the Special Meeting, IPT shall declare a special cash
distribution with a record date on the date immediately preceding the date of
the Special Meeting in an amount in cash equal to the IPT Final Distribution
Amount. Before the Closing Date, IPT shall set aside the monies necessary to pay
the distribution and such distributions shall be paid fifteen calendar days
after such record date.
 
     However, if the Effective Time has not occurred by June 1, 1999, the IPT
Board may, at the election of a majority of the Continuing Trustees, declare and
the Continuing Trustees may cause IPT to pay a distribution in an amount in cash
per IPT Common
 
                                       77
<PAGE>   84
 
Share equal to the IPT Final Distribution Amount (assuming that for purposes of
determining the IPT Final Distribution Amount, the day on which Effective Time
was to occur would be the date prior to the record date for such distribution).
 
     In addition, the IPT Board also may, at the election of a majority of the
Continuing Trustees, declare and the Continuing Trustees may cause IPT to pay
regular quarterly distributions thereafter, each in an amount in cash per IPT
Common Share equal to the greater of (x) $0.16 or (y) the product of (i) the
quotient obtained by dividing $13.28 by $36.8781, the AIMCO Collar Price,
multiplied by (ii) the per share amount of the most recent distribution
declared, as of the date of such determination, by the Board of Directors of
AIMCO in respect of the AIMCO Common Stock (other than a Special AIMCO
Distribution (as defined below)).
 
     "IPT Final Distribution Amount" means an amount (rounded up to the next
whole cent) equal to (a) $0.16; plus (b) either (i) if the Special Meeting
occurs on or before February 28, 1999, $0.001758 multiplied by the number of
days between December 24, 1998 (inclusive) and the day immediately proceeding
the Special Meeting (inclusive), or (ii) if the Special Meeting occurs on or
after March 1, 1998, $0.117786, plus the product of (A) the number of days
between March 1, 1998 (inclusive) and the day immediately preceding the Special
Meeting (inclusive), multiplied by (B) the greater of (x) $0.001758 or (y) the
quotient of (I) the product of (m) the quotient obtained by dividing $13.28 by
36.8781, the AIMCO Collar Price, multiplied by (n) the per share amount of the
most recent distribution declared, as of the date of such determination, by the
Board of Directors of AIMCO, in respect of the AIMCO Common Stock (other than a
Special AIMCO Distribution), divided by (II) 91.
 
     IPT also agreed that if the Effective Time has not occurred on or before
February 28, 1999 and if at any time thereafter the Board of Directors of AIMCO
declares any distribution on a share of AIMCO Common Stock other than a regular
quarterly distribution, with a record date for such distribution prior to the
Effective Time (a "Special AIMCO Distribution"), the IPT Board will promptly
declare and IPT will pay a corresponding distribution on each IPT Common Share
with the same record date in an amount equal to the amount of such Special AIMCO
Distribution, multiplied by $13.28, divided by $36.8781, the AIMCO Collar Price.
 
     IPT also agreed that to the extent that IPT reasonably determines that the
distributions paid by IPT pursuant to the Merger Agreement are not sufficient
for IPT to meet the distribution requirements applicable to REITs for its
taxable year ended on the date on which the Effective Time occurs, IPT will,
prior to the date on which the Effective Time occurs, pay one or more special
distributions in respect of the IPT Common Shares in an aggregate amount equal
to the Excess Distribution Amount.
 
     Finally, AIMCO agreed that it will cause IPT to timely declare and pay the
distributions IPT is required to make pursuant to the Merger Agreement.
 
  Registration Statement, Information Statement/Prospectus and Schedule 13E-3
 
     AIMCO and IPT agreed to prepare and file with the SEC a combined
information statement/prospectus to be distributed in connection with the Merger
and the transactions contemplated by the Merger Agreement and a transaction
statement on Schedule 13E-3. AIMCO also agreed to prepare and file with the SEC
a registration statement in connection with the possible issuance of AIMCO
Common Stock pursuant to the Merger,
 
                                       78
<PAGE>   85
 
in which the information statement/prospectus will be included as a prospectus.
Each party will also take action to cause the shares of AIMCO Common Stock
covered by the registration statement to be approved for listing on the NYSE as
of the Effective Time. Each party will also take action to cause the shares of
AIMCO Common Stock issuable in connection with the Merger to be registered or to
obtain an exemption from registration under applicable state "blue sky" or
securities laws.
 
  Shareholder Approval
 
    The Merger Agreement requires IPT to take all steps necessary to duly call
and hold a meeting of the IPT shareholders for the purpose of voting on the
Merger, the Merger Agreement and the transactions contemplated thereby as soon
as practicable after October 1, 1998. IPT further agreed that the IPT Board,
acting upon the recommendation of a majority of the Continuing Trustees, unless
otherwise required by its duties to IPT shareholders, will recommend to such
shareholders the approval of the Merger, the Merger Agreement and the
transactions contemplated by the Merger Agreement, and will cooperate and
consult with AIMCO with respect to each of the foregoing matters. IPT and the
Continuing Trustees may nonetheless take and disclose to IPT shareholders a
position contemplated by Rule 14e-2 promulgated under the Exchange Act if
required to do so by the Exchange Act, comply with Rule 14d-9, also promulgated
under the Exchange Act, and make all other disclosures required by applicable
law. The parties agreed that none of them will take any action or omit to take
any action which could reasonably be expected to result in a postponement or
adjournment of the Special Meeting, unless such party is advised by counsel that
such action or omission is required and in no event shall the postponement or
adjournment be in excess of ten NYSE trading days.
 
  Vote of IPT Common Shares Owned by AIMCO
 
    AIMCO agreed to vote all IPT Common Shares owned of record by it and cause
its subsidiaries to vote all IPT Common Shares owned by them, for approval of
the Merger, the Merger Agreement and the transactions contemplated thereby.
AIMCO has executed a proxy in favor of Messrs. Aston, Farkas and Garrison (the
"Proxyholders") to vote all such IPT Common Shares in favor of the Merger, the
Merger Agreement and the transaction contemplated thereby. AIMCO further agreed
that, with some exceptions, through the Effective Time it will not (i) sell,
transfer or otherwise dispose of any IPT Common Shares owned by it or permit any
of its subsidiaries to sell, transfer or dispose of any IPT Common Shares owned
by it, (ii) cause or permit IPT to issue additional IPT equity securities to any
other person or take any other action which could have the effect of reducing
the proportion of IPT Common Shares owned by AIMCO and its subsidiaries that are
entitled to vote on the Merger Agreement and the transactions contemplated
thereby, or (iii) grant any proxies with respect to such shares.
 
  Public Announcements
 
    AIMCO and IPT agreed in the Merger Agreement that, subject to their
respective disclosure obligations, each will cooperate with the other in the
development and distribution of all public announcements with respect to the
Merger Agreement or any of the transactions contemplated thereby and will not
issue any such public announcement or statement without the consent of the other
party. AIMCO and IPT each agreed not to unreasonably withhold such consent.
 
                                       79
<PAGE>   86
 
  Expenses
 
    Each party to the Merger agreed that all costs and expenses incurred in
connection with the Merger Agreement and the transactions contemplated thereby
will be paid by the party incurring such expenses.
 
  Transfer Taxes
 
     The parties to the Merger Agreement agreed to cooperate in the preparation,
execution and filing of all documents regarding the real property transfer or
gains, sales, use, transfer, value added, stock transfer and stamp taxes, any
transfer, recording, registration and other fees or similar taxes which become
payable in connection with the transactions contemplated by the Merger Agreement
that are required to be filed on or before the Closing Date.
 
  IPT Trustees and Officers
 
     IPT agreed to recognize that the Continuing Trustees of the IPT Board are
authorized and empowered to act to the extent set forth in the IPT Bylaws. The
AIMCO Committee and the Executive Committee will not be dissolved prior to the
earlier of the Effective Time or the termination of the Merger Agreement. The
powers of the Continuing Trustees may not be modified prior to the earlier of
the Effective Time or the termination of the Merger Agreement without the
consent of a majority of the Continuing Trustees.
 
     If, after October 1, 1998 and prior to the Effective Time, any IPT
shareholder vote is taken for the election of a trustee to any position on the
IPT Board currently occupied by any of the Continuing Trustees or by any
successor duly elected under the IPT Bylaws, AIMCO is required to vote its IPT
Common Shares for the reelection of each such Continuing Trustee or for the
election of such Continuing Trustee's successor designated by a majority of the
Continuing Trustees. If, after the date of the Merger Agreement and prior to the
Effective Time, any vacancy on the IPT Board arises with respect to a trustee
position occupied by a Continuing Trustee, AIMCO is required to cause the AIMCO-
nominated Trustees to vote to fill such vacancy by electing a person nominated
by a majority of the Continuing Trustees. Without the approval of a majority of
the Continuing Trustees, AIMCO will not, and will not permit any AIMCO-nominated
Trustee to, remove a Continuing Trustee as a trustee of the IPT Board or amend
IPT's Declaration unless such amendment shall have been approved by a majority
of the Continuing Trustees.
 
     Prior to the earlier of the Effective Time or the termination of the Merger
Agreement, without the prior written consent of a majority of the Continuing
Trustees, IPT may not terminate (x) Ernst & Young LLP from serving as its
independent auditor, (y) Lehman Brothers from serving as its financial advisor
with respect to the Merger, or (z) Proskauer Rose LLP, Miles & Stockbridge P.C.,
Rogers & Wells LLP or Akin, Gump, Strauss, Hauer & Feld, L.L.P. from serving as
its legal counsel with respect to the Merger.
 
     The parties agreed that Jeffrey P. Cohen will remain as Secretary of IPT,
and in such capacity will be invited and entitled to attend all meetings of the
IPT Board and each committee of the IPT Board. If Mr. Cohen ceases to serve as
Secretary of IPT for any reason, another individual nominated by a majority of
the Continuing Trustees will be appointed to such position and be invited and
entitled to attend such meetings.
 
                                       80
<PAGE>   87
 
  Modification of Form of Transaction
 
     The Merger Agreement provides that, upon the earlier to occur of (i)
December 31, 2000 or (ii) such time (if ever) as any law is adopted or issued
after October 1, 1998 which has the effect of prohibiting the Merger, or any
court of competent jurisdiction in the United States shall have prohibited the
Merger, IPT, acting through the Continuing Trustees, and AIMCO will use their
best efforts to restructure the form of the transaction to one which has an
improved chance of completion and can be accomplished without materially
changing either the consideration to be received by IPT shareholders or the tax
or other economic consequences of the transaction to AIMCO and AIMCO's
subsidiaries.
 
  Indemnification
 
     AIMCO agreed to indemnify each person who was, is or may become a trustee,
officer or employee of IPT, and their respective successors, heirs and personal
representatives (each, an "Indemnitee") against all losses and expenses that
result from the fact that he is, was or is to be a trustee, officer or employee
of IPT. However, no Indemnitee will be entitled to be indemnified with respect
to any loss found to have been incurred by reason of such Indemnitee's wilful
misconduct or with respect to attorney's fees and expenses which are not
reasonable. In the event of such a finding, any funds for attorneys' fees billed
at standard hourly rates and expenses of such counsel advanced to such
Indemnitee pursuant to the Merger Agreement and which are not found to be within
the provision of the previous sentence shall be promptly returned by such
Indemnitee to AIMCO. The indemnification provisions will survive the
consummation of the Merger and termination of the Merger Agreement.
 
  Insurance
 
     AIMCO and IPT agreed that after October 1, 1998, and until the Effective
Time, IPT will maintain, and AIMCO will use its best efforts to cause IPT to
maintain, trustees' and officers' liability insurance covering the existing and
Continuing Trustees and officers of IPT and its subsidiaries which is no less
favorable than the insurance coverage which is in effect and covering such
trustees and officers on October 1, 1998. AIMCO further agreed that following
the Effective Time, the surviving entity will maintain such insurance covering
such persons.
 
  Conduct of IPT's Business Pending the Effective Time
 
     IPT and AIMCO agreed that from October 1, 1998 until the Effective Time:
(i) IPT will use its best efforts to maintain its listing on the American Stock
Exchange; (ii) none of any entity controlled by IPT, other than IPLP or any
wholly-owned subsidiary of IPT or IPLP (a "Controlled IPT Entity"), IPT or IPLP
will loan money to AIMCO or any entity controlled by AIMCO (a "Controlled AIMCO
Entity"); (iii) neither IPT nor IPLP will reclassify any of their respective
equity securities or other interests or issue or authorize or propose the
issuance of any other securities or interests in respect of, in lieu or, or in
substitution for, their respective equity securities or other interests; (iv)
neither IPT nor AIMCO will cause the IPLP Partnership Agreement to be amended,
except with the prior consent of a majority of the Continuing Trustees, provided
that IPLP may admit Additional Limited Partners (as defined in the IPLP
Partnership Agreement) other than AIMCO or its affiliates to IPLP without such
consent; (v) during such time as AIMCO controls (as such term is defined in the
rules and regulations promulgated under
 
                                       81
<PAGE>   88
 
Rule 12b-2 of the Exchange Act) IPT, IPT will not, and AIMCO will cause IPT not
to, make payments to AIMCO or any of its subsidiaries under certain sections of
the IPLP Partnership Agreement arising from the termination of certain duties of
AIMCO; (vi) IPT will duly and timely file all reports and other documents
required to be filed pursuant to the Securities Act, the Exchange Act and the
rules and regulations set forth under those laws; (vii) IPT will follow the same
general policy as AIMCO in releasing and drafting its future press releases and
such releases will include the AIMCO Collar Price, the IPT Exchange Value, and,
if applicable, the future date through which AIMCO may elect to pay cash; (viii)
AIMCO will not, nor will AIMCO permit any of AIMCO's subsidiaries to, willfully
take any action that would make the Merger impossible to be consummated or would
result in a material breach of any provision of the Merger Agreement or in any
of its material representations and warranties set forth in the Merger Agreement
being untrue on and as of the Effective Time, provided, however, that AIMCO and
its subsidiaries (other than IPT) may issue securities, acquire securities or
assets and otherwise act in the ordinary course of their business; (ix) all
transactions between IPT, IPLP or any Controlled IPT Entity, on the one hand,
and AIMCO or any Controlled AIMCO Entity, on the other hand, will be on arms'
length terms; (x) IPT will not increase its annual general and administrative
expenses in excess of an annual increase based on the Consumer Price Index; and
(xi) neither AIMCO nor any of its affiliates (as defined in Rule 12b-2 of the
Exchange Act), directly or indirectly, will bid for, purchase or attempt to
induce any person to bid for or purchase AIMCO Common Stock from the fifth
business day prior to the first day of the AIMCO Reference Period (as defined
below) until the last day of the AIMCO Reference Period. AIMCO will report the
volume, dates and prices of such purchases to the Secretary of IPT weekly.
 
     The "AIMCO Reference Period" means the ten consecutive NYSE-trading day
period ending on and including the NYSE trading day immediately preceding the
Special Meeting.
 
     Messrs. Aston, Farkas, Garrison and Uretta have also agreed not to sell
AIMCO Common Stock from the fifth business day before the AIMCO Reference Period
through the last day of that period.
 
CONDITIONS TO CONSUMMATION OF MERGER
 
     The obligations of AIMCO and IPT to consummate the Merger are subject to
the satisfaction on or prior to the Closing Date, of the following conditions
(the "Bi-Lateral Conditions"): (i) the requisite approval of the Merger by the
IPT shareholders shall be obtained; (ii) no temporary restraining order or
preliminary or permanent injunction or other order by any Federal or state court
preventing consummation of the Merger shall be in effect, (iii) the Merger and
the other transactions contemplated by the Merger shall not be prohibited under
any applicable Federal or state law or regulation; (iv) if any AIMCO Common
Stock is to be issued in the Merger, (a) the registration statement shall be
effective under the Securities Act at the Effective Time, and no stop order
suspending such effectiveness shall be in effect; and (b) all applicable time
periods required under the Exchange Act following the mailing of the information
statement/prospectus to IPT shareholders shall have elapsed.
 
                                       82
<PAGE>   89
 
     In addition to the Bi-Lateral Conditions, the obligation of IPT to
consummate the Merger is subject to the satisfaction on or prior to the Closing
Date, of the following additional conditions, unless waived by a majority of the
Continuing Trustees: (i) the IPT Fairness Opinion shall not have been withdrawn;
(ii) if AIMCO is to issue any shares of AIMCO Common Stock in the Merger, the
representations and warranties of AIMCO contained in the Merger Agreement shall
be true and correct (a) on and as of October 1, 1998 and/or the date of the
Merger Agreement as applicable and (b) at and as of the Closing Date with the
same effect as though such representations and warranties had been made at and
as of the Closing Date (except for representations and warranties that expressly
speak only as of a specific date or time (other than October 1, 1998 and/or the
date of the Merger Agreement, as applicable) which need only be true and correct
as of such date or time), provided that this condition shall be satisfied if the
aggregate losses, costs, damages and expenses to IPT due to breaches of such
representations and warranties when aggregated with failures to comply with
covenants by AIMCO and any material adverse affects on the business assets,
condition, results of operations, or prospects suffered by AIMCO, does not
exceed $50 million; (iii) if AIMCO is to issue any shares of AIMCO Common Stock
in the Merger, each of AIMCO and AIMCO's subsidiaries will have performed
certain obligations; (iv) if AIMCO is to issue any shares of AIMCO Common Stock
in the Merger, IPT shall have received a certificate signed by the President of
AIMCO, dated as of the Closing Date, evidencing compliance with certain matters;
(v) the receipt of certain legal opinions from AIMCO's counsel and (vi) IPT will
have declared and paid all distributions required by the Merger Agreement to be
declared and paid prior to the Effective Time and IPT will have declared all
distributions required by the Merger Agreement to be declared prior to the
Effective Time. In the event that AIMCO's counsel is unable to deliver certain
tax opinions with respect to the tax free nature of the Merger and AIMCO's
qualification as REIT for income tax purposes at the closing, the Merger
Consideration will consist only of cash.
 
     In addition to the Bi-Lateral Conditions, the obligation of AIMCO to
consummate the Merger is subject to the satisfaction, at or prior to the Closing
Date, to the following additional conditions, unless waived by AIMCO: (i) the
representations and warranties of IPT contained in the Merger Agreement shall be
true and correct on and as of October 1, 1998 and/or the date of the Merger
Agreement, as applicable, provided that this condition will be satisfied if the
aggregate loss, cost, damage or expense to AIMCO due to breaches of such
representations and warranties does not exceed $50 million; and (ii) non-
withdrawal of certain legal opinions of counsel to IPT.
 
TERMINATION OF THE MERGER AGREEMENT
 
     The Merger Agreement may be terminated at any time prior to the Effective
Time, whether before or after receipt of the IPT shareholders' approval: (i) by
mutual written consent of a majority of the Continuing Trustees, on behalf of
IPT, and the Board of Directors of AIMCO; or (ii) by AIMCO, by written notice to
each of the Continuing Trustees, if the Effective Time has not occurred by
December 31, 2001; or (iii) by IPT, by written notice to AIMCO, if (a) the
Effective Time has not occurred by December 31, 2001; (b) a majority of the
Continuing Trustees determines in good faith that any proposal by or offer from
any person relating to any (1) acquisition of a substantial amount of assets of
IPT or IPLP or any of the outstanding IPT Common Shares or IPLP OP Units, (2)
offer to purchase outstanding IPT Common Shares or IPLP OP Units or (3) merger,
consolidation, business combination, sale of substantially all assets,
recapitalization,
 
                                       83
<PAGE>   90
 
liquidation or similar transaction involving IPT or IPLP (an "Alternative
Proposal"), constitutes a proposal that is reasonably likely to be consummated
and would, if consummated, result in a transaction which is more favorable to
IPT shareholders, subject to certain limitations and conditions in the Merger
Agreement; or (iv) AIMCO takes any action that constitutes an anticipatory
repudiation of the Merger Agreement and fails to cure such breach within ten
days from receipt of notice from a majority of the Continuing Trustees.
 
     In the event of termination of the Merger Agreement, except under certain
circumstances as provided under the Merger Agreement and the IPT Bylaws, there
shall be no liability on the part of IPT or AIMCO or their respective officers,
trustees or directors after a termination, except that this limitation on
liability does not apply with respect to any party whose breach of any
representation, warranty, covenant or agreement is reason for such termination.
In addition, in all events, certain provisions shall survive the termination of
the Merger Agreement for specified periods.
 
"UNWIND" IN THE EVENT OF A TERMINATION OF THE MERGER AGREEMENT
 
     AIMCO and IPT agreed that if the Merger Agreement is terminated they will
attempt to undo the effect of acquisitions by AIMCO and Controlled AIMCO
Entities of assets and securities of IPT, IPLP or any wholly-owned subsidiary of
IPT or IPLP. They also agreed to transfer to IPLP the benefit of any AIMCO
purchases (from anyone other than IPT or IPLP or their wholly-owned
subsidiaries) of securities of Controlled IPT Entities.
 
     To accomplish this "unwind," AIMCO and IPT have agreed that as soon as
practicable after a termination of the Merger Agreement, AIMCO will transfer to
IPT all of the Covered IPT Assets and Covered Third-Party Assets (as such terms
are defined below).
 
     The "Covered IPT Assets" that AIMCO and Controlled AIMCO Entities are
required to deliver to IPT are all securities and assets acquired by AIMCO or
any Controlled AIMCO Entity from any of IPT, IPLP or any wholly-owned subsidiary
of IPT or IPLP at any time prior to the date of the termination.
 
     The "Covered Third-Party Assets" that AIMCO and Controlled AIMCO Entities
are required to deliver to IPT are all securities of or ownership interests in
any Controlled IPT Entity or assets of any Controlled IPT Entity acquired by any
Controlled AIMCO Entity from any person other than IPT, IPLP or a wholly-owned
subsidiary of IPT or IPLP at any time prior to the date of the termination.
 
     "Covered IPT Assets" and "Covered Third-Party Assets" also include cash and
non-cash distributions received by any Controlled AIMCO Entity in respect of the
Covered IPT Asset or Covered Third-Party Asset. If a Controlled AIMCO Entity has
disposed of any of the Covered IPT Assets or Covered Third Party Assets, then
any consideration received by such Controlled AIMCO Entity will be substituted
for that Covered IPT Asset or Covered Third-Party Asset. In addition, "Covered
IPT Assets" and "Covered Third-Party Assets" includes a return on cash
distributions and cash consideration at an annual rate of 10%.
 
     In exchange for the Covered IPT Assets, IPT or IPLP will deliver to AIMCO
the IPT Unwind Consideration. "IPT Unwind Consideration" means any consideration
delivered to IPT, IPLP and any wholly-owned subsidiaries of IPT and IPLP, in
exchange for the Covered IPT Assets, together with cash and non-cash
distributions received in
 
                                       84
<PAGE>   91
 
respect of the foregoing. If any item which would have otherwise constituted IPT
Unwind Consideration has been disposed of, the consideration received will be
substituted for that item as IPT Unwind Consideration. In addition, the IPT
Unwind Consideration includes a return on cash distributions and cash
consideration at a compounded rate of 10%.
 
     In exchange for the Covered Third-Party Assets, IPT or IPLP is required to
deliver to AIMCO the Third Party Unwind Price, payable either in IPT Common
Shares or IPLP OP Units, at AIMCO's option. The number of such securities are
calculated by dividing the Third-Party Unwind Price by the IPT Termination Share
Value (each as defined). "Third-Party Unwind Price" means the aggregate fair
value of the consideration originally paid by the applicable Controlled AIMCO
Entity in exchange for the Covered Third-Party Assets, plus interest at a
compounded annual rate of 10%, minus the aggregate fair value of all cash and
non-cash distributions received in respect of the Covered Third-Party Assets,
and minus interest on the amount of cash distributions at a compounded annual
rate of 10%. If any such consideration has been disposed of, the consideration
received in exchange, together with 10% annual interest on any cash portion
thereof on the same basis, will be substituted for the consideration that was
sold.
 
     The "IPT Termination Share Value" will be equal to (i) the IPT Exchange
Value divided by (ii) the lesser of (a) the AIMCO Collar Price or (b) the
average price of AIMCO Common Stock during the 10-trading days ending on and
including the date of termination (the "AIMCO Termination Reference Price")
multiplied by (iii) the AIMCO Termination Reference Price.
 
AMENDMENT AND WAIVER
 
     The Merger Agreement may be amended, at any time before or after the IPT
shareholders' approval of the Merger, the Merger Agreement and the transactions
contemplated thereby at the Special Meeting has been obtained and prior to the
Effective Time, only by a written agreement signed by AIMCO and a majority of
the Continuing Trustees, on behalf of IPT. However, after the IPT shareholders'
approval of the Merger, the Merger Agreement and the transactions contemplated
thereby at a Special Meeting has been obtained, no amendment may, without
approval of the IPT shareholders, (a) alter or change the amount or type of the
merger consideration or any proceedings relating to the treatment of IPT Common
Shares under the Merger Agreement or (b) alter or change any of the other terms
and conditions of the Merger Agreement if such alterations or changes,
individually or in the aggregate, would adversely affect the rights of IPT
shareholders.
 
     Under the terms of the Merger Agreement, at any time prior to the Closing
Date, AIMCO or IPT may (a) extend the time for the performance of any of the
obligations or other acts of the other party, (b) waive any inaccuracies in the
representations and warranties of the other party contained in the Merger
Agreement or in any document delivered pursuant to the Merger Agreement and (c)
waive compliance with any of the agreements or conditions of the other party
contained in the Merger Agreement, to the extent permitted by applicable law.
 
                                       85
<PAGE>   92
 
               SELECTED HISTORICAL FINANCIAL INFORMATION OF AIMCO
 
     The following table sets forth selected historical financial and operating
information for AIMCO. The selected historical financial information for the
nine months ended September 30, 1998 and 1997 is based on unaudited financial
statements of AIMCO as included in AIMCO's Quarterly Report on Form 10-Q for the
nine months ended September 30, 1998, incorporated by reference in this
Information Statement/Prospectus. Results for the quarter ended September 30,
1998 are not necessarily indicative of the results to be expected for a full
year. The selected historical financial information for the years ended December
31, 1997, 1996 and 1995 is based on the audited financial statements of AIMCO
incorporated by reference in this Information Statement/Prospectus. The selected
historical financial information for the period January 10, 1994 (the date of
AIMCO's inception) through December 31, 1994 for AIMCO and for the period from
January 1, 1994 through July 28, 1994 and for the year ended December 31, 1993
for the predecessors to AIMCO (the "AIMCO Predecessors") is based on the audited
financial statements of AIMCO and the AIMCO Predecessors, respectively. The
following information should be read in conjunction with "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the historical financial statements of AIMCO and notes thereto incorporated by
reference in this Information Statement/Prospectus.
<TABLE>
<CAPTION>
 
                                                                                                AIMCO
                                                                         ---------------------------------------------------
                                                    FOR THE NINE                                             FOR THE PERIOD
                                                    MONTHS ENDED                                            JANUARY 10, 1994
                                                    SEPTEMBER 30,        FOR THE YEAR ENDED DECEMBER 31,        THROUGH
                                               -----------------------   --------------------------------     DECEMBER 31,
                                                  1998         1997         1997        1996       1995           1994
                                               ----------   ----------   ----------   --------   --------   ----------------
                                                                                                             (RESTATED)(C)
                                                          (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS AND OTHER DATA)
<S>                                            <C>          <C>          <C>          <C>        <C>        <C>
OPERATING DATA:
RENTAL PROPERTY OPERATIONS:
Rental and other income......................  $  265,700   $  127,083   $  193,006   $100,516   $ 74,947       $ 24,894
Property operating expenses..................    (101,600)     (50,737)     (76,168)   (38,400)   (30,150)       (10,330)
Owned property management expenses...........      (7,746)      (4,344)      (6,620)    (2,746)    (2,276)          (711)
Depreciation and amortization................     (59,792)     (23,848)     (37,741)   (19,556)   (15,038)        (4,727)
                                               ----------   ----------   ----------   --------   --------       --------
                                                   96,562       48,154       72,477     39,814     27,483          9,126
                                               ----------   ----------   ----------   --------   --------       --------
SERVICE COMPANY BUSINESS:
Management fees and other income.............      13,968        9,173       13,937      8,367      8,132          3,217
Management and other expenses................      (8,101)      (5,029)      (9,910)    (5,352)    (4,953)        (2,047)
Corporate overhead allocation................        (196)        (441)        (588)      (590)      (581)            --
Owner and seller bonuses.....................          --           --           --         --         --             --
Depreciation and amortization................          (3)        (236)      (1,401)      (718)      (596)          (150)
                                               ----------   ----------   ----------   --------   --------       --------
Income from service company business.........       5,668        3,467        2,038      1,707      2,002          1,020
Minority interests in service company
 business....................................          --           48          (10)        10        (29)           (14)
                                               ----------   ----------   ----------   --------   --------       --------
Company's shares of income from service
 company business............................       5,668        3,515        2,028      1,717      1,973          1,006
                                               ----------   ----------   ----------   --------   --------       --------
General and administrative expenses..........      (7,444)      (1,408)      (5,396)    (1,512)    (1,804)          (977)
Interest income..............................      18,244        4,458        8,676        523        658            123
Interest expense.............................     (56,756)     (33,359)     (51,385)   (24,802)   (13,322)        (1,576)
Minority interest in other partnerships......      (1,052)        (777)       1,008       (111)        --             --
Equity in losses of other partnerships(d)....      (5,078)        (463)      (1,798)        --         --             --
Equity in earnings (losses) of Unconsolidated
 Subsidiaries(e).............................       8,413          456        4,636         --         --             --
Amortization of goodwill.....................      (5,071)        (711)          --         --         --             --
                                               ----------   ----------   ----------   --------   --------       --------
 
<CAPTION>
                                                   AIMCO PREDECESSOR(A)
                                               -----------------------------
                                               FOR THE PERIOD
                                                 JANUARY 1,
                                                    1994          FOR THE
                                                  THROUGH        YEAR ENDED
                                                  JULY 28,      DECEMBER 31,
                                                  1994(B)           1993
                                               --------------   ------------
                                               (RESTATED)(C)
 
<S>                                            <C>              <C>
OPERATING DATA:
RENTAL PROPERTY OPERATIONS:
Rental and other income......................     $ 5,805         $ 8,056
Property operating expenses..................      (2,263)         (3,200)
Owned property management expenses...........          --              --
Depreciation and amortization................      (1,151)         (1,702)
                                                  -------         -------
                                                    2,391           3,154
                                                  -------         -------
SERVICE COMPANY BUSINESS:
Management fees and other income.............       6,533           8,069
Management and other expenses................      (5,823)         (6,414)
Corporate overhead allocation................          --              --
Owner and seller bonuses.....................        (204)           (468)
Depreciation and amortization................        (146)           (204)
                                                  -------         -------
Income from service company business.........         360             983
Minority interests in service company
 business....................................          --              --
                                                  -------         -------
Company's shares of income from service
 company business............................         360             983
                                                  -------         -------
General and administrative expenses..........          --              --
Interest income..............................          --              --
Interest expense.............................      (4,214)         (3,510)
Minority interest in other partnerships......          --              --
Equity in losses of other partnerships(d)....          --              --
Equity in earnings (losses) of Unconsolidated
 Subsidiaries(e).............................          --              --
Amortization of goodwill.....................          --              --
                                                  -------         -------
</TABLE>
 
                                       86
<PAGE>   93
<TABLE>
<CAPTION>
 
                                                                                                AIMCO
                                                                         ---------------------------------------------------
                                                    FOR THE NINE                                             FOR THE PERIOD
                                                    MONTHS ENDED                                            JANUARY 10, 1994
                                                    SEPTEMBER 30,        FOR THE YEAR ENDED DECEMBER 31,        THROUGH
                                               -----------------------   --------------------------------     DECEMBER 31,
                                                  1998         1997         1997        1996       1995           1994
                                               ----------   ----------   ----------   --------   --------   ----------------
                                                                                                             (RESTATED)(C)
                                                          (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS AND OTHER DATA)
<S>                                            <C>          <C>          <C>          <C>        <C>        <C>
Income (loss) before gain on disposition of
 property, extraordinary item, income taxes
 and minority interest in AIMCO Operating
 Partnership.................................      53,486       19,865       30,246     15,629     14,988          7,702
Gain on disposition of property..............       2,783         (169)       2,720         44         --             --
Extraordinary (loss) gain - early
 extinguishment of debt......................          --         (269)        (269)        --         --             --
Provisions for income taxes..................          --           --           --         --         --             --
                                               ----------   ----------   ----------   --------   --------       --------
Income (loss) before minority interest in
 AIMCO Operating Partnership.................      56,269       19,427       32,697     15,673     14,988          7,702
Minority interest in AIMCO Operating
 Partnership.................................      (4,425)      (2,612)      (4,064)    (2,689)    (1,613)          (559)
                                               ----------   ----------   ----------   --------   --------       --------
Net income (loss)............................  $   51,844   $   16,815   $   28,633   $ 12,984   $ 13,375       $  7,143
                                               ==========   ==========   ==========   ========   ========       ========
BALANCE SHEET DATA (END OF PERIOD):
Real estate, before accumulated
 depreciation................................  $2,685,487   $1,250,239   $1,657,207   $865,222   $477,162       $406,067
Real estate, net of accumulated
 depreciation................................   2,355,122    1,107,545    1,503,922    745,145    448,425        392,368
Total assets.................................   3,121,949    1,608,195    2,100,510    827,673    480,361        416,739
Total mortgages and notes payable............   1,275,401      661,715      808,530    522,146    268,692        141,315
Mandatorily redeemable 1994 Cumulative
 Convertible Senior Preferred Stock..........          --           --           --         --         --         96,600
Stockholders' equity.........................   1,521,527      627,426    1,045,301    215,749    169,032        140,319
OTHER DATA:
Total owned properties (end of period).......         241          109          147         94         56             48
Total owned apartment units (end of
 period).....................................      62,955       28,773       40,039     23,764     14,453         12,513
Equity Owned Units...........................     168,746       87,182       83,431         --         --             --
Units under management (end of period).......     154,729       71,038       69,587     19,045     19,594         20,758
Basic earnings per common share..............  $     0.80   $     0.77   $     1.09   $   1.05   $   0.86       $   0.42
Diluted earnings per common share............  $     0.79   $     0.77   $     1.08   $   1.04   $   0.86       $   0.42
Distributions paid per common share..........  $   1.6875   $   1.3875   $     1.95   $   1.70   $   1.66       $   0.29
Cash flows provided by operating
 activities..................................      50,825       53,435       73,032     38,806     25,911         16,825
Cash flows used in investing activities......    (185,453)    (314,814)    (717,663)   (88,144)   (60,821)      (186,481)
Cash flows provided by (used in) financing
 activities..................................     141,221      293,984      668,549     60,129     30,145        176,800
Funds from operations(f).....................  $  132,881   $   49,692   $   81,155   $ 35,185   $ 25,285       $  9,391
Weighted average number of common shares and
 OP Units outstanding(g).....................      53,007       24,347       29,119     14,994     11,461         10,920
 
<CAPTION>
                                                   AIMCO PREDECESSOR(A)
                                               -----------------------------
                                               FOR THE PERIOD
                                                 JANUARY 1,
                                                    1994          FOR THE
                                                  THROUGH        YEAR ENDED
                                                  JULY 28,      DECEMBER 31,
                                                  1994(B)           1993
                                               --------------   ------------
                                               (RESTATED)(C)
<S>                                            <C>              <C>
Income (loss) before gain on disposition of
 property, extraordinary item, income taxes
 and minority interest in AIMCO Operating
 Partnership.................................      (1,463)            627
Gain on disposition of property..............          --              --
Extraordinary (loss) gain - early
 extinguishment of debt......................          --              --
Provisions for income taxes..................         (36)           (336)
                                                  -------         -------
Income (loss) before minority interest in
 AIMCO Operating Partnership.................      (1,499)            291
Minority interest in AIMCO Operating
 Partnership.................................          --              --
                                                  -------         -------
Net income (loss)............................     $(1,499)        $   291
                                                  =======         =======
BALANCE SHEET DATA (END OF PERIOD):
Real estate, before accumulated
 depreciation................................     $47,500         $46,819
Real estate, net of accumulated
 depreciation................................      33,270          33,701
Total assets.................................      39,042          38,914
Total mortgages and notes payable............      40,873          41,893
Mandatorily redeemable 1994 Cumulative
 Convertible Senior Preferred Stock..........          --              --
Stockholders' equity.........................      (9,345)         (7,556)
OTHER DATA:
Total owned properties (end of period).......           4               4
Total owned apartment units (end of
 period).....................................       1,711           1,711
Equity Owned Units...........................          --              --
Units under management (end of period).......      29,343          28,422
Basic earnings per common share..............         N/A             N/A
Diluted earnings per common share............         N/A             N/A
Distributions paid per common share..........         N/A             N/A
Cash flows provided by operating
 activities..................................       2,678           2,203
Cash flows used in investing activities......        (924)        (16,352)
Cash flows provided by (used in) financing
 activities..................................      (1,032)         14,114
Funds from operations(f).....................         N/A             N/A
Weighted average number of common shares and
 OP Units outstanding(g).....................         N/A             N/A
</TABLE>
 
- -------------------------
 
(a)  On July 29, 1994, AIMCO completed its initial public offering of 9,075,000
     shares of AIMCO Common Stock and issued 966,000 shares of convertible
     preferred stock and 513,514 unregistered shares of AIMCO Common Stock. On
     such date, AIMCO and the AIMCO Predecessors engaged in a business
     combination and consummated a series of related transactions which enabled
     AIMCO to continue and expand the property management and related businesses
     of the AIMCO Predecessors. The 966,000 shares of convertible preferred
     stock and 513,514 shares of AIMCO Common Stock were repurchased by AIMCO in
     1995.
 
(b)  Represents the period January 1, 1994 through July 28, 1994, the date of
     the completion of the business combination with AIMCO.
 
(c)  In the second quarter of 1996, AIMCO effected an internal reorganization.
     As a result, the AIMCO Operating Partnership (i) owns all of the non-voting
     preferred stock of the service company, Property Asset Management Services,
     Inc. ("PAMS Inc."), representing a 95% economic interest, and (ii) owns the
     1% general partnership interest in Property Asset Management Services, L.P.
     ("PAMS LP"). PAMS Inc. owns the 99% limited partnership
 
                                       87
<PAGE>   94
 
     interest in PAMS LP. Because the AIMCO Operating Partnership controls the
     activity of the partnership, the results of operations for the service
     company are consolidated. Prior to the reorganization, AIMCO reported the
     service company business on the equity method. The restatement had no
     impact on net income, but increased third party and affiliate management
     and other income, management and other expenses, amortization of management
     company goodwill and depreciation of non-real estate assets. AIMCO restated
     the balance sheet as of December 31, 1995 and 1994, and the statements of
     income and statements of cash flows for the year ended December 31, 1995
     and the period from January 10, 1994 through December 31, 1994 to reflect
     the change.
 
(d)  Represents AIMCO's share of earnings from 83,431 units in which AIMCO
     purchased an equity interest from the NHP Real Estate Companies (as
     defined).
 
(e)  Represents AIMCO's equity earnings in the Unconsolidated Subsidiaries.
 
(f)  AIMCO's management believes that the presentation of FFO, when considered
     with the financial data determined in accordance with GAAP, provides a
     useful measure of AIMCO's performance. However, FFO does not represent cash
     flow and is not necessarily indicative of cash flow or liquidity available
     to AIMCO, nor should it be considered as an alternative to net income as an
     indicator of operating performance. The Board of Governors of the National
     Association of Real Estate Investment Trusts ("NAREIT") defines FFO as net
     income (loss), computed in accordance with GAAP, excluding gains and losses
     from debt restructuring and sales of property, plus real estate related
     depreciation and amortization (excluding amortization of financing costs),
     and after adjustments for unconsolidated partnerships and joint ventures.
     AIMCO calculates FFO consistent with the NAREIT definition, adjusted for
     minority interest in the AIMCO Operating Partnership, plus amortization of
     management company goodwill, the non-cash deferred portion of the income
     tax provision for unconsolidated subsidiaries, and less the payments of
     dividends on preferred stock. AIMCO's management believes that presentation
     of FFO provides investors with industry-accepted measurements which help
     facilitate an understanding of AIMCO's ability to make required dividend
     payments, capital expenditures and principal payments on its debt. There
     can be no assurance that AIMCO's basis of computing FFO is comparable with
     that of other REITs.
 
                                       88
<PAGE>   95
 
     The following is a reconciliation of income before minority interest in the
     AIMCO Operating Partnership to FFO:
 
<TABLE>
<CAPTION>
                                                                                                  FOR THE
                                                                                                   PERIOD
                                                                                                JANUARY 10,
                                     FOR THE NINE MONTHS                                           1994,
                                     ENDED SEPTEMBER 30,     FOR THE YEAR ENDED DECEMBER 31,      THROUGH
                                     --------------------   ---------------------------------   DECEMBER 31,
                                       1998        1997       1997        1996        1995          1994
                                     ---------   --------   ---------   ---------   ---------   ------------
                                                          (IN THOUSANDS)
   <S>                               <C>         <C>        <C>         <C>         <C>         <C>
   Income before minority interest
     in the AIMCO Operating
     Partnership...................  $ 56,269    $19,427     $32,697     $15,673     $14,988      $ 7,702
   Gain on disposition of
     property......................    (2,783)       169      (2,720)        (44)         --           --
   Extraordinary item..............        --        269         269          --          --           --
   Real estate depreciation, net of
     minority interests............    56,900     21,052      33,751      19,056      15,038        4,727
   Amortization of goodwill........     7,077        711         948         500         428           76
   Equity in earnings of
     Unconsolidated Subsidiaries:
     Real estate depreciation......        --      2,689       3,584          --          --           --
     Amortization of management
       contracts...................     4,201        430       1,587          --          --           --
     Deferred taxes................     6,134      2,164       4,894          --          --           --
   Equity in earnings of other
     partnerships:
     Real estate depreciation......    17,379      2,781       6,280          --          --           --
     Preferred stock dividends.....   (12,296)        --        (135)         --      (5,169)      (3,114)
                                     --------    -------     -------     -------     -------      -------
   Funds from operations...........  $132,881    $49,692     $81,155     $35,185     $25,285      $ 9,391
                                     ========    =======     =======     =======     =======      =======
</TABLE>
 
(g)  Generally, after a one-year holding period, OP Units may be tendered for
     redemption at the option of the holder and, upon tender, may be acquired by
     AIMCO, at its election, for (x) shares of AIMCO Common Stock at an exchange
     ratio of one share of AIMCO Common Stock for each OP Unit (subject to
     adjustment) or (y) cash.
 
                                       89
<PAGE>   96
 
            SELECTED CONSOLIDATED AND COMBINED FINANCIAL DATA OF IPT
 
     The following is a summary of certain selected historical financial data of
IPT and its subsidiaries and predecessors. The selected financial data have been
derived from IPT's consolidated financial statements and the combined financial
statements of its predecessor and, in the opinion of management of IPT, include
all adjustments (consisting of only normal recurring adjustments) necessary for
a fair presentation of the financial position and results of operations for the
periods presented. The information set forth below is not necessarily indicative
of the results of future operations and should be read in conjunction with IPT's
financial statements and the related notes thereto and "Management's Discussion
and Analysis of Financial Condition and Results of Operations of IPT and the IPT
Partnerships" included elsewhere in this Information Statement/Prospectus.
 
<TABLE>
<CAPTION>
                                    NINE MONTHS ENDED
                                      SEPTEMBER 30,                    YEAR ENDED DECEMBER 31,
                                   --------------------      --------------------------------------------
                                     1998        1997          1997        1996        1995        1994
                                   --------    --------      --------    --------    --------    --------
                                                   (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                <C>         <C>           <C>         <C>         <C>         <C>
STATEMENT OF OPERATIONS DATA
  Revenues.......................  $ 19,592    $ 11,144      $ 16,826    $  9,705    $  2,459    $    113
  Income before extraordinary
    item.........................  $ 11,520    $  2,930      $  6,074    $  3,557    $  2,215    $    113
  Net income.....................  $ 11,227    $  2,930      $  6,004    $  2,425    $  2,215    $    113
  Income before extraordinary
    item per share (diluted).....  $   0.60    $   0.21      $    .41         n/a         n/a         n/a
  Net income per share
    (diluted)....................  $   0.59    $   0.21      $    .40         n/a         n/a         n/a
  Cash distributions to IPT
    shareholders per share.......  $   0.46    $     --      $   0.30    $   0.20         n/a         n/a
  Weighted average IPT Common
    Shares outstanding
    (diluted)....................    19,158      13,450        14,694         n/a         n/a         n/a
 
BALANCE SHEET DATA (END OF
  PERIOD)
  Cash...........................  $ 56,085    $ 53,897      $ 37,432    $  4,928    $    528    $     --
  Investments in real estate
    limited partnerships.........  $183,072    $126,505      $159,469    $118,741    $ 54,037    $ 38,346
  Total assets...................  $322,111    $286,748      $226,068    $147,757    $ 54,565    $ 38,346
  Long-term debt.................  $ 59,002    $ 19,300      $ 19,300    $ 19,730    $     --    $     --
  Minority interest in IPLP......  $ 58,849    $ 47,988      $ 54,447    $ 50,429    $     --    $     --
  Minority interest in other
    consolidated subsidiaries....  $     --    $     --      $     --    $     --    $  2,682    $     --
  Shareholders' equity...........  $195,366    $138,710      $146,212    $ 70,639    $ 51,874    $ 38,346
</TABLE>
 
<TABLE>
<CAPTION>
                                  NINE MONTHS ENDED
                                    SEPTEMBER 30,                      YEAR ENDED DECEMBER 31,
                                ----------------------      ----------------------------------------------
                                   1998         1997           1997         1996        1995        1994
                                ----------    --------      ----------    --------    --------    --------
<S>                             <C>           <C>           <C>           <C>         <C>         <C>
OTHER DATA
  Cash provided by (used in)
    operating activities......  $    2,534    $  1,227      $    2,338    $  1,420    $   (100)   $     --
  Cash provided by (used in)
    provided by investing
    activities................  $   (3,094)   $  7,129      $  (16,481)   $(70,834)   $(13,237)   $(38,233)
  Cash provided by financing
    activities................  $   19,213    $ 40,613      $   46,647    $ 73,814    $ 13,865    $ 38,233
  Funds from operations(a)....  $   24,633    $ 14,176      $   20,939    $ 12,563    $  4,611    $    113
</TABLE>
 
                                       90
<PAGE>   97
 
<TABLE>
<CAPTION>
                                  NINE MONTHS ENDED
                                    SEPTEMBER 30,                      YEAR ENDED DECEMBER 31,
                                ----------------------      ----------------------------------------------
                                   1998         1997           1997         1996        1995        1994
                                ----------    --------      ----------    --------    --------    --------
<S>                             <C>           <C>           <C>           <C>         <C>         <C>
  Number of IPT
    Partnerships..............          42          26              29          26          13           4
  Number of properties(b).....         197         136             150         136          86          32
  Apartment units(b)..........      48,323      36,077          38,369      36,077      19,337       7,433
  Commercial square feet(b)...   3,026,904     819,000       1,667,874     819,000     767,172     453,977
</TABLE>
 
- -------------------------
 
(a)  In accordance with the resolution adopted by the Board of Governors of
     NAREIT, FFO represents net income (loss)(computed in accordance with GAAP),
     excluding gains (or losses) from debt restructuring or sales of property,
     plus depreciation of real property, and after adjustments for
     unconsolidated partnerships and joint ventures. FFO should not be
     considered as an alternative to net income or other measurements under GAAP
     as an indicator of operating performance or to cash flows from operating,
     investing or financing activities as a measure of liquidity. FFO does not
     reflect working capital changes, cash expenditures for capital improvements
     or principal payments on indebtedness. IPT believes that FFO is helpful to
     investors as a measure of the performance of an equity REIT, because along
     with cash flows from operating activities, financing activities and
     investing activities, it provides investors with an understanding of the
     ability of IPT to incur and service debt and make capital distributions.
     FFO computed by IPT may not be comparable to other similarly titled
     measures of other REITs. FFO is calculated as follows:
 
<TABLE>
<CAPTION>
                                      NINE MONTHS ENDED
                                        SEPTEMBER 30,            YEAR ENDED DECEMBER 31,
                                     --------------------   ---------------------------------
                                      1998         1997      1997      1996      1995    1994
                                     -------      -------   -------   -------   ------   ----
                                                          (IN THOUSANDS)
   <S>                               <C>          <C>       <C>       <C>       <C>      <C>
   Operating income................  $12,254      $ 5,853   $ 9,470   $ 3,913   $2,346   $113
   Depreciation and amortization...   12,971        8,988    12,288     9,388    2,265     --
   Minority interest in National
     Property Investors 4's funds
     from operations...............     (592)        (665)     (819)     (738)      --     --
                                     -------      -------   -------   -------   ------   ----
   Funds from operations...........  $24,633      $14,176   $20,939   $12,563   $4,611   $113
                                     =======      =======   =======   =======   ======   ====
</TABLE>
 
(b)  Includes only the IPT Partnerships.
 
                                       91
<PAGE>   98
 
                    PRO FORMA FINANCIAL INFORMATION OF AIMCO
                   AS OF SEPTEMBER 30, 1998 AND FOR THE YEAR
                        ENDED DECEMBER 31, 1997 AND THE
                      NINE MONTHS ENDED SEPTEMBER 30, 1998
 
INTRODUCTION
 
     On October 1, 1998, AIMCO completed the IFG Merger. In the IFG Merger,
IFG's common stock was converted into 8,423,751 shares of Class E Cumulative
Convertible Preferred Stock, par value $.01 per share, of AIMCO ("Class E
Preferred Stock"), whose issue date market value approximately equaled $310
million. In addition to receiving the same dividends as holders of AIMCO Common
Stock, holders of Class E Preferred Stock were, on January 15, 1999, paid a
special dividend of approximately $44.7 million in the aggregate. On January 15,
1999, the Class E Preferred Stock was automatically converted into AIMCO Common
Stock on a one-for-one basis. In addition, AIMCO assumed approximately $417
million in indebtedness and other liabilities of IFG and its subsidiaries, and
subsidiaries of AIMCO assumed approximately $149.5 million of convertible
securities for a total transaction value of approximately $927 million. In
connection with the IFG Merger, AIMCO assumed property management of
approximately 192,000 multifamily units which consist of general and limited
partnership investments in 115,000 units and third party management of 77,000
units. IPT, which prior to the IFG Merger was a subsidiary of IFG, owns a 32%
weighted average general and limited partnership interest in approximately
51,000 units.
 
     Also effective on October 1, 1998, IPLP transferred the economic rights to
substantially all of the assets of IPLP, valued at approximately $386.2 million,
and the AIMCO Operating Partnership assumed all of IPLP's obligations relating
to the Assets to the AIMCO Operating Partnership in exchange for approximately
10.2 million OP Units.
 
     In May and September of 1997, AIMCO directly or indirectly through a
subsidiary, acquired (the "NHP Stock Purchase") an aggregate of 6,930,122 shares
of common stock ("NHP Common Stock") of NHP Incorporated ("NHP"). On December 8,
1997, AIMCO acquired the remaining shares of NHP Common Stock in a merger
transaction accounted for as a purchase (the "NHP Merger"). As a result of the
NHP Merger, AIMCO issued 6,759,148 shares of AIMCO Common Stock, valued at
$180.8 million, and paid $86.5 million in cash. The total cost of the purchase
of NHP was $349.5 million.
 
     Immediately following the NHP Merger, in order to satisfy certain
requirements of the Code applicable to AIMCO's status as a REIT, AIMCO engaged
in a reorganization (the "NHP Reorganization") of the assets and operations of
NHP that resulted in NHP's property management agreement being terminated and
NHP's operations being conducted through corporations (the "Unconsolidated
Subsidiaries") in which the AIMCO Operating Partnership holds non-voting
preferred stock that represents a 95% economic interest and certain officers
and/or directors of AIMCO hold, directly or indirectly, all of the voting common
stock, representing a 5% economic interest. As a result of the controlling
ownership interest in the Unconsolidated Subsidiaries held by others, AIMCO
accounts for its interest in the Unconsolidated Subsidiaries on the equity
method.
 
     In June 1997, AIMCO purchased (the "NHP Real Estate Acquisition") a group
of companies (the "NHP Real Estate Companies") affiliated with NHP that hold
general and limited partnership interests in partnerships (the "NHP
Partnerships") that own 534
 
                                       92
<PAGE>   99
 
conventional and affordable multifamily apartment properties (the "NHP
Properties") containing 87,659 units, a captive insurance subsidiary and certain
related assets. AIMCO paid aggregate consideration of $54.8 million in cash and
warrants that entitle the holders to purchase 399,999 shares of AIMCO Common
Stock at an exercise price of $36.00 per share. AIMCO engaged in a
reorganization (the "NHP Real Estate Reorganization") of its interests in the
NHP Real Estate Companies, which resulted in certain of the assets of the NHP
Real Estate Companies being owned by a limited partnership (the "Unconsolidated
Partnership") in which the AIMCO Operating Partnership holds 99% limited partner
interest and certain directors and officers of AIMCO, directly or indirectly,
hold a 1% general partner interest.
 
     On May 8, 1998, AIMCO completed a merger with Ambassador Apartments, Inc.
("Ambassador"), pursuant to which Ambassador was merged into AIMCO (the
"Ambassador Merger"). Each outstanding share of stock ("Ambassador Common
Stock") of Ambassador, other than those shares held by AIMCO or Ambassador, were
converted into 0.553 (the "Conversion Ratio") shares of AIMCO Common Stock. Any
outstanding options to purchase Ambassador Common Stock were converted, at the
election of the option holder, into cash or options to purchase AIMCO Common
Stock at such options' then current exercise price divided by the Conversion
Ratio. In accordance with the Agreement and Plan of Merger, dated December 23,
1997, by and between AIMCO and Ambassador, and supplemented by letter dated as
of March 11, 1998 (the "Ambassador Merger Agreement"), the outstanding shares of
Class A Senior Cumulative Convertible Preferred Stock of Ambassador (the
"Ambassador Preferred Stock") were redeemed and converted into Ambassador Common
Stock prior to the Ambassador Merger. Following the consummation of the
Ambassador Merger, a subsidiary of the AIMCO Operating Partnership was merged
with and into the Ambassador Operating Partnership (the "Ambassador OP Merger").
Each outstanding unit of limited partnership interest in the Ambassador
Operating Partnership was converted into the right to receive 0.553 OP Units,
and as a result, the Ambassador Operating Partnership became a 99.9% owned
subsidiary partnership of the AIMCO Operating Partnership.
 
     Also during 1997, AIMCO (i) (a) acquired 44 properties for aggregate
purchase consideration of $467.4 million, of which $56 million was paid in the
form of 1.9 million OP Units (b) paid $34.2 million in cash and issued OP Units
valued at $7.3 million in connection with the acquisition of partnership
interests through tender offers in certain partnerships ((a) and (b) together
are the "1997 Property Acquisitions") and (c) paid $19.9 million to acquire
886,600 shares of Ambassador Common Stock (together with the 1997 Property
Acquisitions, the "1997 Acquisitions"); (ii) sold (A) approximately 16,367,000
shares of AIMCO Common Stock for aggregate net proceeds of $513.4 million; (B)
750,000 shares of Class B Cumulative Convertible Preferred Stock, par value $.01
per share, of AIMCO ("Class B Preferred Stock"), for net proceeds of $75
million; and (C) 2,400,000 shares of Class C 9% Cumulative Preferred Stock, par
value $.01 per share, of AIMCO ("Class C Preferred Stock"), for net proceeds of
$58.1 million (collectively, the "1997 Stock Offerings"); and (iii) sold five
real estate properties (the "1997 Dispositions").
 
     Also during 1998, AIMCO (i) (a) sold 4,200,000 shares of its Class D
Cumulative Preferred Stock, par value of $.01 per share, of AIMCO ("Class D
Preferred Stock"), for net proceeds of $101.5 million (the "Class D Preferred
Stock Offering"); (b) sold 4,050,000 shares of Class G Cumulative Preferred
Stock, par value $.01 per share, of
 
                                       93
<PAGE>   100
 
AIMCO ("Class G Preferred Stock"), for net proceeds of $98.0 million (the "Class
G Preferred Stock Offering"); and (c) sold 2,000,000 shares of Class H
Cumulative Preferred Stock, par value $.01 per share, of AIMCO ("Class H
Preferred Stock"), for net proceeds of $48.1 million (the "Class H Preferred
Stock Offering"); and (d) sold 1,000,000 shares of its Class J Cumulative
Convertible Preferred Stock, par value $.01 per share, of AIMCO ("Class J
Preferred Stock"), in a private placement for $100.0 million (the "Class J
Preferred Stock Offering," and, together with the Class D Preferred Stock
Offering and the Class G Preferred Stock Offering, the "1998 Stock Offerings");
(ii) purchased 28 properties for aggregate purchase consideration of $235
million, of which $34.5 million was paid in the form of OP Units (the "1998
Acquisitions"); (iii) sold two real estate properties; (the "1998
Dispositions"); and (iv) contracted to purchase four properties for aggregate
purchase consideration of $139.8 million, of which $44.1 million will be paid in
the form of OP units (the "Probable Purchases").
 
     AIMCO has also filed a registration statement with respect to offers to
purchase limited partnership units in a number of partnerships in which
subsidiaries of AIMCO or IPT are the general partners. Such registration
statement has not been declared effective as of the date of this Information
Statement/Prospectus and AIMCO does not believe that consummation of such
exchange offers is probable, within the meaning of Regulation S-X under the
Securities Act, as of the date of this Information Statement/Prospectus.
 
                                       94
<PAGE>   101
 
             PRO FORMA FINANCIAL INFORMATION OF AIMCO (PRE-MERGER)
 
     The following Pro Forma Consolidated Balance Sheet of AIMCO (Pre-Merger) as
of September 30, 1998 has been prepared as if each of the following transactions
had occurred as of September 30, 1998: (i) the purchase of nine properties for
an aggregate purchase price of $62.5 million; (ii) the Class J Preferred Stock
Offering; (iii) the Probable Purchases; (iv) the IFG Merger (including the
issuance of shares of AIMCO Common Stock upon the automatic conversion of the
Series E Preferred Stock); (v) the IPLP Exchange; and (vi) the transfer of
certain assets and liabilities of IFG to the unconsolidated subsidiaries
following the IFG Merger (the "IFG Reorganization").
 
     The following Pro Forma Consolidated Statement of Operations of AIMCO (Pre-
Merger) for the year ended December 31, 1997 has been prepared as if each of the
following transactions had occurred as of January 1, 1997: (i) the 1997
Acquisitions; (ii) the 1997 Stock Offerings; (iii) the 1997 Dispositions; (iv)
the NHP Real Estate Acquisition; (v) the NHP Real Estate Reorganization; (vi)
the NHP Stock Purchase; (vii) the NHP Merger; (viii) the NHP Reorganization;
(ix) the 1998 Stock Offerings; (x) the 1998 Acquisitions; (xi) the Probable
Purchases; (xii) the 1998 Dispositions; (xiii) the Ambassador Merger; (xiv) the
IFG Merger; (xv) the AMIT Merger; (xvi) the IPLP Exchange; and (xvii) the IFG
Reorganization.
 
     The following Pro Forma Consolidated Statement of Operations of AIMCO (Pre-
Merger) for the nine months ended September 30, 1998 has been prepared as if
each of the following transactions had occurred as of January 1, 1997: (i) the
1998 Stock Offerings; (ii) the 1998 Acquisitions; (iii) the Probable Purchases;
(iv) the 1998 Dispositions; (v) the Ambassador Merger; (vi) the IFG Merger;
(vii) the AMIT Merger; (viii) the IPLP Exchange; and (ix) the IFG
Reorganization.
 
     The following Pro Forma Financial Information (Pre-Merger) is based, in
part, on the following historical financial statements: (i) the audited
Consolidated Financial Statements of AIMCO for the year ended December 31, 1997;
(ii) the unaudited Consolidated Financial Statements of AIMCO for the nine
months ended September 30, 1998; (iii) the audited Consolidated Financial
Statements of Ambassador for the year ended December 31, 1997; (iv) the
unaudited Consolidated Financial Statements of Ambassador for the four months
ended April 30, 1998; (v) the audited Consolidated Financial Statements of IFG
for the year ended December 31, 1997; (vi) the audited Consolidated Financial
Statements of AMIT for the year ended December 31, 1997; (vii) the unaudited
Consolidated Financial Statements of IFG for the nine months ended September 30,
1998; (viii) the unaudited Financial Statements of AMIT for the period from
January 1, 1998 to September 17, 1998; (ix) the unaudited Consolidated Financial
Statements of NHP for the nine months ended September 30, 1997; (x) the
unaudited Combined Financial Statements of the NHP Real Estate Companies for the
three months ended March 31, 1997; (xi) the unaudited Financial Statements of
NHP Southwest Partners, L.P. for the three months ended March 31, 1997; (xii)
the unaudited Combined Financial Statements of the NHP New LP Entities for the
three months ended March 31, 1997; (xiii) the unaudited Combined Financial
Statements of the NHP Borrower Entities for the three months ended March 31,
1997; (xiv) the unaudited Historical Summaries of Gross Income and Certain
Expenses of The Bay Club at Aventura for the three months ended March 31, 1997;
(xv) the unaudited Historical Summary of Gross Income and Direct Operating
Expenses of Morton Towers for the six months ended June 30, 1997; (xvi) the
 
                                       95
<PAGE>   102
 
unaudited Combined Statement of Revenues and Certain Expenses of the Thirty-Five
Acquisition Properties for the six months ended June 30, 1997; (xvii) the
unaudited Statement of Revenues and Certain Expenses of First Alexandria
Associates, a Limited Partnership for the nine months ended September 30, 1997;
(xviii) the unaudited Statement of Revenues and Certain Expenses of Country
Lakes Associates Two, a Limited Partnership for the nine months ended September
30, 1997; (xix) the unaudited Statement of Revenues and Certain Expenses of
Point West Limited Partnership, A Limited Partnership for the nine months ended
September 30, 1997; (xx) the unaudited Statement of Revenues and Certain
Expenses for The Oak Park Partnership for the nine months ended September 30,
1997; (xxi) the audited Combined Historical Summary of Gross Income and Direct
Operating Expenses of the Realty Investment Apartment Communities I for the year
ended December 31, 1997, (xxii) the audited Combined Historical Summary or Gross
Income and Direct Operating Expenses of the Cirque Apartment Communities for the
year ended December 31, 1997; (xxiii) the audited Combined Historical Summary of
Gross Income and Direct Operating Expenses of the Realty Investment Apartment
Communities II for the year ended December 31, 1997; (xxiv) the audited
Historical Summary of Gross Income and Direct Operating Expenses of Calhoun
Beach Club Apartments for the year ended December 31, 1997; (xxv) the unaudited
Combined Historical Summary of Gross Income and Direct Operating Expenses of the
Realty Investment Apartment Communities I for the nine months ended September
30, 1998; (xxvi) the unaudited Combined Historical Summary of Gross Income and
Direct Operating Expenses of the Cirque Apartment Communities for the three
months ended March 31, 1998; (xxvii) the unaudited Combined Historical Summary
of Gross Income and Direct Operating Expenses of the Realty Investment Apartment
Communities II for the nine months ended September 30, 1998; and (xxviii) the
unaudited Historical Summary of Gross Income and Direct Operating Expenses of
Calhoun Beach Club Apartments for the nine months ended September 30, 1998. The
following Pro Forma Financial Information should be read in conjunction with
such financial statements and the notes thereto incorporated by reference
herein.
 
     The unaudited Pro Forma Financial Information (Pre-Merger) has been
prepared using the purchase method of accounting whereby the assets and
liabilities of NHP, the NHP Real Estate Companies, Ambassador, IFG, the 1997
Acquisitions, the 1998 Acquisitions, and the Probable Purchases are adjusted to
estimated fair market value, based upon preliminary estimates, which are subject
to change as additional information is obtained. The allocations of purchase
costs are subject to final determination based upon estimates and other
evaluations of fair market value. Therefore, the allocations reflected in the
following unaudited Pro Forma Financial Information may differ from the amounts
ultimately determined.
 
     The following unaudited Pro Forma Financial Information (Pre-Merger) is
presented for informational purposes only and is not necessarily indicative of
the financial position or results of operations of AIMCO that would have
occurred if such transactions had been completed on the dates indicated, nor
does it purport to be indicative of future financial positions or results of
operations. In the opinion of AIMCO's management, all material adjustments
necessary to reflect the effects of these transactions have been made.
 
                                       96
<PAGE>   103
 
                                     AIMCO
 
               PRO FORMA CONSOLIDATED BALANCE SHEET (PRE-MERGER)
                            AS OF SEPTEMBER 30, 1998
                        IN THOUSANDS, EXCEPT SHARE DATA
<TABLE>
<CAPTION>
                                                         COMPLETED
                                                        TRANSACTIONS                        IFG           AIMCO BEFORE
                                                        AND PROBABLE        IFG            MERGER              IFG
                                        HISTORICAL(A)   PURCHASES(B)   HISTORICAL(C)   ADJUSTMENTS(D)   REORGANIZATION(E)
                                        -------------   ------------   -------------   --------------   -----------------
<S>                                     <C>             <C>            <C>             <C>              <C>
Real estate...........................   $2,355,122       $202,332       $ 44,488        $  15,363(G)      $2,617,305
Property held for sale................       42,212             --             --               --             42,212
Investments in securities.............           --             --             --          291,949(G)
                                                                                          (291,949)(H)             --
Investments in and notes receivable
  from unconsolidated subsidiaries....      127,082             --             --               --            127,082
Investments in and notes receivable
  from unconsolidated real estate
  partnerships........................      246,847             --        232,892          394,321(G)         874,060
Mortgage notes receivable.............           --             --         20,916               --             20,916
Cash and cash equivalents.............       43,681             --         73,064               --            116,745
Restricted cash.......................       83,187             --          2,691               --             85,878
Accounts receivable...................       11,545             --         54,060          (43,082)(G)         22,523
Deferred financing costs..............       21,835             --          7,020           (7,020)(G)         21,835
Goodwill..............................      120,503             --         19,503          200,687(G)         340,693
Property management contracts.........           --             --         86,419           21,916(G)         108,335
Other assets..........................       69,935             --         20,128           (3,572)(G)         86,491
                                         ----------       --------       --------        ---------         ----------
        Total Assets..................   $3,121,949       $202,332       $561,181        $ 578,613         $4,464,075
                                         ==========       ========       ========        =========         ==========
Secured notes payable.................   $  774,676       $122,568       $ 29,002        $      --         $  926,246
Secured tax-exempt bond financing.....      399,925             --             --                             399,925
Secured short-term financing..........       50,000        (43,527)       332,691               --            339,164
Unsecured short-term financing........       50,800        (28,380)            --               --             22,420
Accounts payable, accrued and other
  liabilities.........................      131,799             --         33,241           50,000(G)
                                                                                            55,279(G)
                                                                                             4,935(G)
                                                                                            38,791(G)         314,045
Deferred tax liability................           --             --         18,802           17,850(G)          36,652
Security deposits and prepaid rents...       13,171             --          3,533           (3,533)            13,171
                                         ----------       --------       --------        ---------         ----------
                                          1,420,371         50,661        417,269          163,322          2,051,623
Minority interest in other
  partnerships........................       42,086          6,495        108,485               --            157,066
Minority interest in AIMCO Operating
  Partnership.........................      137,965         45,176             --               --            183,141
Company-obligated mandatorily
  redeemable convertible securities of
  a subsidiary trust..................           --             --        144,282            5,218            149,500
AIMCO Common Stock....................          481             --            320             (320)(G)
                                                                                                84(H)             565
Class B common stock..................            2             --             --               --                  2
Class B Preferred Stock...............       75,000             --             --               --             75,000
Class C Preferred Stock...............       60,000             --             --               --             60,000
Class D Preferred Stock...............      105,000             --             --               --            105,000
Class G Preferred Stock...............      101,250             --             --               --            101,250
Class H Preferred Stock...............       50,000             --             --               --             50,000
Class J Preferred Stock...............           --        100,000             --               --            100,000
Additional paid in capital............    1,236,962             --        (86,959)          86,959(G)
                                                                                           291,865(H)
                                                                                             9,269(G)       1,538,096
Notes receivable on common stock
  purchases...........................      (43,647)            --             --               --            (43,647)
Distributions in excess of earnings...      (63,521)            --        (22,216)          22,216(G)         (63,521)
                                         ----------       --------       --------        ---------         ----------
                                          1,521,527        100,000       (108,855)         410,073          1,922,745
                                         ----------       --------       --------        ---------         ----------
        Total Liabilities and
          Equity......................   $3,121,949       $202,332       $561,181        $ 578,613         $4,464,075
                                         ==========       ========       ========        =========         ==========
 
<CAPTION>
 
                                             IFG
                                        REORGANIZATION      PRO
                                        ADJUSTMENTS(F)     FORMA
                                        --------------   ----------
<S>                                     <C>              <C>
Real estate...........................     $     --      $2,617,305
Property held for sale................           --          42,212
Investments in securities.............
                                                 --              --
Investments in and notes receivable
  from unconsolidated subsidiaries....       73,697(I)      200,779(K)
Investments in and notes receivable
  from unconsolidated real estate
  partnerships........................           --         874,060
Mortgage notes receivable.............                       20,916
Cash and cash equivalents.............      (17,897)(J)      98,848
Restricted cash.......................       (1,352)(J)      84,526
Accounts receivable...................       (6,631)(J)      15,892
Deferred financing costs..............           --          21,835
Goodwill..............................           --         340,693
Property management contracts.........      (73,696)(I)      34,639
Other assets..........................      (14,167)(J)      72,324
                                           --------      ----------
        Total Assets..................     $(40,046)     $4,424,029
                                           ========      ==========
Secured notes payable.................     $     --      $  926,246
Secured tax-exempt bond financing.....           --         399,925
Secured short-term financing..........                      339,164
Unsecured short-term financing........           --          22,420
Accounts payable, accrued and other
  liabilities.........................
                                                                 --
                                             (3,394)(J)     310,651
Deferred tax liability................      (36,652)(I)          --
Security deposits and prepaid rents...           --          13,171
                                           --------      ----------
                                            (40,046)      2,011,577
Minority interest in other
  partnerships........................           --         157,066
Minority interest in AIMCO Operating
  Partnership.........................           --         183,141
Company-obligated mandatorily
  redeemable convertible securities of
  a subsidiary trust..................           --         149,500
AIMCO Common Stock....................
                                                 --             565
Class B common stock..................           --               2
Class B Preferred Stock...............           --          75,000
Class C Preferred Stock...............           --          60,000
Class D Preferred Stock...............           --         105,000
Class G Preferred Stock...............           --         101,250
Class H Preferred Stock...............           --          50,000
Class J Preferred Stock...............           --         100,000
Additional paid in capital............           --
                                                 --       1,538,096
Notes receivable on common stock
  purchases...........................           --         (43,647)
Distributions in excess of earnings...           --         (63,521)
                                           --------      ----------
                                                 --       1,922,745
                                           --------      ----------
        Total Liabilities and
          Equity......................     $(40,046)     $4,424,029
                                           ========      ==========
</TABLE>
 
                                       97
<PAGE>   104
 
- -------------------------
 
(A)  Represents the unaudited historical consolidated financial position of
     AIMCO as of September 30, 1998, as reported in AIMCO's Quarterly Report on
     Form 10-Q.
 
(B)  Represents adjustments to reflect the purchase of nine properties for an
     aggregate purchase price of $62.5 million; the Class J Preferred Stock
     Offering and the Probable Purchases.
 
(C)  Represents the unaudited historical consolidated financial position of IFG
     (subsequent to the spin-off of New Insignia) as of September 30, 1998.
 
(D)  Represents the following adjustments occurring as a result of the IFG
     Merger: (i) the issuance of 8,423,751 shares of AIMCO Common Stock, based
     on consideration to holders of IFG common stock outstanding as of the date
     of the IFG Merger; (ii) the payment of a special dividend of $50,000; (iii)
     the assumption of $149,500 of the convertible debentures of IFG; (iv) the
     IPLP Exchange; and (v) the allocation of the purchase price of IFG
     (subsequent to the spin-off of New Insignia) based on the preliminary
     estimates of relative fair market value of the assets and liabilities of
     IFG.
 
(E)  Represents the effects of AIMCO's acquisition of IFG immediately after the
     IFG Merger. These amounts do not give effect to the IFG Reorganization,
     which includes the transfers of certain assets and liabilities of IFG to
     the combined Unconsolidated Subsidiaries. The IFG Reorganization occurred
     immediately after the IFG Merger so that AIMCO could maintain its
     qualification as a REIT. This column is included as an intermediate step to
     assist the reader in understanding the entire nature of the IFG Merger and
     related transactions.
 
(F)  Represents adjustments related to the IFG Reorganization, whereby,
     following the IFG Merger, AIMCO contributed or sold to the combined
     Unconsolidated Subsidiaries certain assets and liabilities of IFG,
     primarily management contracts and related working capital assets and
     liabilities related to IFG's third party property management operations.
     The adjustments reflect the transfer of assets valued at AIMCO's new basis
     resulting from the allocation of the purchase price of IFG. AIMCO received
     non-voting preferred stock as consideration in exchange for the net assets
     contributed. The net deferred tax liability is assumed by the
     Unconsolidated Subsidiaries as it resulted from the assets and liabilities
     transferred to the Unconsolidated Subsidiaries.
 
(G)  In connection with the IFG Merger, AIMCO became obligated to issue a total
     of 8,423,751 shares of AIMCO Common Stock upon the conversion of the Class
     E Preferred Stock.
 
     The total purchase price of IFG is $1,139,794, as follows:
 
<TABLE>
       <S>                                                           <C>
       Issuance of 8,423,751 shares of AIMCO Common Stock in
         connection with the IFG Merger, at $34.658 per share......  $  291,949
       Assumption of Convertible Debentures........................     149,500
       Assumption of liabilities as indicated in the IFG Merger
         Agreement.................................................     452,527
       Assumption of minority interest in IPT......................     108,485
       Transaction costs...........................................      55,279
       Generation of deferred tax liability........................      17,850
       Special dividend............................................      50,000
       Purchase of IFG common stock prior to merger................       4,935
       Consideration for options...................................       9,269
                                                                     ----------
                 Total.............................................  $1,139,794
                                                                     ==========
</TABLE>
 
                                       98
<PAGE>   105
 
     The purchase price was allocated to the various assets of IFG acquired in
     the IFG Merger, as follows:
 
<TABLE>
       <S>                                                           <C>
       Purchase price..............................................  $1,139,794
       Historical basis of IFG's assets acquired...................    (561,181)
                                                                     ----------
       Step-up to record the fair value of IFG's assets acquired...  $  578,613
                                                                     ==========
</TABLE>
 
     This step-up was applied to IFG's assets as follows:
 
<TABLE>
       <S>                                                            <C>
       Real estate.................................................   $ 15,363
       Investment in real estate partnerships......................    394,321
       Decrease in accounts receivable.............................    (43,082)
       Decrease in deferred loan costs.............................     (7,020)
       Management contracts........................................     21,916
       Increase in goodwill........................................    200,687
       Reduction in value of other assets..........................     (3,572)
                                                                      --------
                 Total.............................................   $578,613
                                                                      ========
</TABLE>
 
     The fair value of IFG's assets, primarily the real estate and management
     contracts, was calculated based on estimated future cash flows of the
     underlying assets.
 
     As of September 30, 1998, IFG's stockholders' equity (deficit) was
     $(108,855), which is detailed as follows:
 
<TABLE>
       <S>                                                           <C>
       Common stock................................................  $     320
       Additional paid-in capital..................................    (86,959)
       Distributions in excess of earnings.........................    (22,216)
                                                                     ---------
                 Total.............................................  $(108,855)
                                                                     =========
</TABLE>
 
     Upon completion of the IFG Merger, the entire amount of the stockholders'
     equity (deficit) was eliminated.
 
(H)  Represents the issuance of a total of 8,423,751 shares of AIMCO Common
     Stock to IFG stockholders, in exchange for all the shares of IFG common
     stock.
 
     In accordance with the IFG Merger Agreement, AIMCO issued 8,423,751 shares
     of Class E Preferred Stock, approximately equal to $292 million. Each share
     of Class E Preferred Stock automatically converted into one share of AIMCO
     Common Stock upon the payment of the special dividend thereon. As such, for
     the purpose of preparing the pro forma financial statements, AIMCO's
     management believes that the Class E Preferred Stock was substantially the
     same as AIMCO Common Stock, and that the fair value of the Class E
     Preferred Stock approximated the fair value of the AIMCO Common Stock. Upon
     the payment of the special dividend on the Class E Preferred Stock and the
     conversion of the Class E Preferred Stock to AIMCO Common Stock, the former
     IFG stockholders own approximately 15.0% of the AIMCO Common Stock. The
     special dividend on the Class E Preferred Stock was intended to represent a
     distribution in an amount at least equal to the earnings and profits of IFG
     at the time of the IFG Merger, to which AIMCO succeeded.
 
(I)  Represents the increase in AIMCO's investment in Unconsolidated
     Subsidiaries to reflect the contribution or sale of property management
     contracts, including the
 
                                       99
<PAGE>   106
 
     related deferred tax liability, in exchange for preferred stock and a note
     payable from the Unconsolidated Subsidiaries. These assets and liabilities
     are valued at AIMCO's new basis resulting from the allocation of the
     purchase price of IFG.
 
(J)  Represents certain assets and liabilities of IFG, primarily related to the
     management operations of IFG, contributed or sold by AIMCO to the
     Unconsolidated Subsidiaries.
 
(K)  Represents notes receivable from the Unconsolidated Subsidiaries of
     $95,000, advances to the Unconsolidated Subsidiaries of $42,792, and equity
     in the Unconsolidated Subsidiaries of $62,987. The combined pro forma
     balance sheet of the Unconsolidated Subsidiaries as of September 30, 1998
     is presented below, which reflects the effects of the IFG Merger, and the
     IFG Reorganization as if such transactions had occurred as of September 30,
     1998.
 
                                       100
<PAGE>   107
 
                          UNCONSOLIDATED SUBSIDIARIES
 
               PRO FORMA CONSOLIDATED BALANCE SHEET (PRE-MERGER)
                            AS OF SEPTEMBER 30, 1998
                       (IN THOUSANDS, EXCEPT SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                 IFG
                                             HISTORICAL   REORGANIZATION(I)    PRO FORMA
                                             ----------   -----------------    ---------
<S>                                          <C>          <C>                  <C>
ASSETS
Real estate................................   $ 22,376        $     --         $ 22,376
Cash and cash equivalents..................     16,919          17,897(ii)       34,816
Restricted cash............................      5,507           1,352(ii)        6,859
Management contracts.......................     47,846          73,696(iii)     121,542
Accounts receivable........................     13,109           6,631(ii)       19,740
Deferred financing costs...................      3,117              --            3,117
Goodwill...................................     43,544              --           43,544
Other assets...............................     51,498          14,167(ii)       65,665
                                              --------        --------         --------
                                              $203,916        $113,743         $317,659
                                              ========        ========         ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Secured notes payable......................   $114,302        $ 45,000(iii)    $159,302
Accounts payable, accrued and other
  liabilities..............................     56,773           3,394(ii)       60,167
Security deposits and deferred income......        334              --(ii)          334
Deferred tax liability.....................         --          36,652(iii)      36,652
                                              --------        --------         --------
                                               171,409          85,046          256,455
Common stock...............................      2,061           1,510(iv)        3,571
Preferred stock............................     34,290          28,697(iii)      62,987
Retained earnings..........................     (3,844)             --           (3,844)
Notes receivable on common stock
  purchases................................         --          (1,510)(iv)      (1,510)
                                              --------        --------         --------
                                                32,507          28,697           61,204
                                              --------        --------         --------
                                              $203,916        $113,743         $317,659
                                              ========        ========         ========
</TABLE>
 
- -------------------------
 
(i)   Represents adjustments related to the IFG Reorganization, whereby,
      following the IFG Merger, AIMCO contributed or sold to the combined
      Unconsolidated Subsidiaries certain assets and liabilities of IFG,
      primarily related to the management operations owned by IFG. The
      adjustments reflect the transfer of assets valued at AIMCO's new basis
      resulting from the allocation of the purchase price of IFG. AIMCO received
      non-voting preferred stock as consideration in exchange for the net assets
      contributed. The net deferred tax liability is assumed by the
      Unconsolidated Subsidiaries as it resulted from the assets and liabilities
      transferred to the Unconsolidated Subsidiaries.
 
(ii)  Represents certain assets and liabilities of IFG, primarily related to the
      management operations of IFG, contributed or sold by AIMCO to the
      Unconsolidated Subsidiaries, valued at AIMCO's new basis resulting from
      the allocation of the purchase price of IFG.
 
(iii) Represents the transfer or sale of management contracts, the establishment
      of an intercompany note, and the establishment of the related estimated
      net deferred Federal and state tax liabilities at a combined rate of 40%
      for the estimated difference between the book and tax basis of the net
      assets of the Unconsolidated Subsidiaries. The primary component of the
      deferred tax liability is the difference between the new basis of the
 
                                       101
<PAGE>   108
 
      property management contracts, as a result of the allocation of the
      purchase price of IFG, and the historical tax basis.
 
(iv)  Represents the issuance of common stock to the common stockholders of the
      Unconsolidated Subsidiaries in exchange for notes receivable, in order for
      the common stockholders to maintain their respective ownership interest in
      the Unconsolidated Subsidiaries.
 
                                       102
<PAGE>   109
 
                                     AIMCO
 
          PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (PRE-MERGER)
                      FOR THE YEAR ENDED DECEMBER 31, 1997
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                       COMPLETED
                                                    TRANSACTIONS AND                                       AMBASSADOR
                                                        PROBABLE             NHP          AMBASSADOR     PURCHASE PRICE
                                    HISTORICAL(A)     PURCHASES(B)     TRANSACTIONS(C)   HISTORICAL(D)   ADJUSTMENTS(E)
                                    -------------   ----------------   ---------------   -------------   --------------
<S>                                 <C>             <C>                <C>               <C>             <C>
Rental and other property
 revenues..........................   $193,006          $118,471(I)
                                                          12,878(J)        $ 6,660         $ 93,329         $    --
Property operating expenses........    (76,168)          (58,595)(I)
                                                          (5,731)(J)        (2,941)         (36,088)             --
Owned property management
 expense...........................     (6,620)           (4,256)(I)
                                                            (673)(J)          (282)              --              --
Depreciation.......................    (37,741)          (23,925)(I)
                                                          (4,892)(J)        (1,414)         (18,979)         (5,997)(O)
                                      --------          --------           -------         --------         -------
Income from property operations....     72,477            33,277             2,023           38,262          (5,997)
                                      --------          --------           -------         --------         -------
Management fees and other income...     13,937                --             7,813               --              --
Management and other expenses......     (9,910)               --            (5,394)              --              --
Corporate overhead allocation......       (588)               --                --               --              --
Amortization.......................     (1,401)               --            (5,800)              --              --
                                      --------          --------           -------         --------         -------
Income from service company
 business..........................      2,038                --            (3,381)              --              --
Minority interest in service
 company business..................        (10)               --                --               --              --
                                      --------          --------           -------         --------         -------
AIMCO's share of income from
 service company business..........      2,028                --            (3,381)              --              --
                                      --------          --------           -------         --------         -------
General and administrative
 expenses..........................     (5,396)               --            (1,025)          (7,392)          7,392(P)
Interest expense...................    (51,385)           (2,842)(K)
                                                          (3,569)(L)        (5,462)         (26,987)           (221)(Q)
Interest income....................      8,676                --             1,900               --              --
Minority interest in other
 partnerships......................      1,008               960(M)             16             (851)            705(R)
Equity in losses of unconsolidated
 partnerships......................     (1,798)             (122)(N)        (8,542)             405              --
Equity in earnings of
 unconsolidated subsidiaries.......      4,636                --             5,790               --              --
                                      --------          --------           -------         --------         -------
Income (loss) from operations......     30,246            27,704            (8,681)           3,437           1,879
Income tax provision...............         --                --                --               --              --
Gain on dispositions of property...      2,720            (2,720)               --               --              --
                                      --------          --------           -------         --------         -------
Income (loss) before extraordinary
 item and minority interest in
 AIMCO Operating Partnership.......     32,966            24,984            (8,681)           3,437           1,879
Extraordinary item -- early
 extinguishment of debt............       (269)              269                --               --              --
                                      --------          --------           -------         --------         -------
Income before minority interest in
 AIMCO Operating Partnership.......     32,697            25,253            (8,681)           3,437           1,879
Minority interest in AIMCO
 Operating Partnership.............     (4,064)              955(BB)         1,821(BB)         (386)(BB)       (201)(BB)
                                      --------          --------           -------         --------         -------
Net income.........................     28,633            26,208            (6,860)           3,051           1,678
Income attributable to preferred
 stockholders......................      2,315            38,859                --               --              --
                                      --------          --------           -------         --------         -------
Income attributable to common
 stockholders......................   $ 26,318          $(12,651)          $(6,860)        $  3,051         $ 1,678
                                      ========          ========           =======         ========         =======
Basic earnings per share...........   $   1.09
                                      ========
Diluted earnings per share.........   $   1.08
                                      ========
Weighted average shares
 outstanding.......................     24,055
                                      ========
Weighted average shares and
 equivalents outstanding...........     24,436
                                      ========
 
<CAPTION>
 
                                                        IFG              IFG
                                       IFG AS          MERGER       REORGANIZATION
                                     ADJUSTED(F)   ADJUSTMENTS(G)   ADJUSTMENTS(H)   PRO FORMA
                                     -----------   --------------   --------------   ---------
<S>                                  <C>           <C>              <C>              <C>
Rental and other property
 revenues..........................
                                      $  6,912        $     --         $     --      $ 431,256
Property operating expenses........
                                        (3,307)             --               --       (182,830)
Owned property management
 expense...........................
                                            --              --               --        (11,831)
Depreciation.......................
                                          (966)         (1,937)(S)           --        (95,851)
                                      --------        --------         --------      ---------
Income from property operations....      2,639          (1,937)              --        140,744
                                      --------        --------         --------      ---------
Management fees and other income...     94,330              --          (74,404)(X)     41,676
Management and other expenses......    (57,615)             --           49,236(X)     (23,683)
Corporate overhead allocation......         --              --               --           (588)
Amortization.......................    (16,768)        (34,409)(T)       28,355(Y)     (30,023)
                                      --------        --------         --------      ---------
Income from service company
 business..........................     19,947         (34,409)           3,187        (12,618)
Minority interest in service
 company business..................         --              --               --            (10)
                                      --------        --------         --------      ---------
AIMCO's share of income from
 service company business..........     19,947         (34,409)           3,187        (12,628)
                                      --------        --------         --------      ---------
General and administrative
 expenses..........................    (21,199)             --            6,392(X)     (21,228)
Interest expense...................
                                        (9,035)             --               --        (99,501)
Interest income....................     10,967              --              191(Z)      21,734(CC)
Minority interest in other
 partnerships......................    (12,871)         (5,456) (U)          --        (16,489)
Equity in losses of unconsolidated
 partnerships......................     12,515         (24,281)(V)           --        (21,823)
Equity in earnings of
 unconsolidated subsidiaries.......         --              --           (4,181)(AA)     6,245(EE)
                                      --------        --------         --------      ---------
Income (loss) from operations......      2,963         (66,083)           5,589         (2,946)
Income tax provision...............      1,701          (1,701)(W)           --             --
Gain on dispositions of property...         80             (80)              --             --
                                      --------        --------         --------      ---------
Income (loss) before extraordinary
 item and minority interest in
 AIMCO Operating Partnership.......      4,744         (67,864)           5,589         (2,946)
Extraordinary item -- early
 extinguishment of debt............         --              --               --             --
                                      --------        --------         --------      ---------
Income before minority interest in
 AIMCO Operating Partnership.......      4,744         (67,864)           5,589         (2,946)
Minority interest in AIMCO
 Operating Partnership.............         --           7,214(BB)           --          5,339(BB)
                                      --------        --------         --------      ---------
Net income.........................      4,744         (60,650)           5,589          2,393
Income attributable to preferred
 stockholders......................         --              --               --         41,174(DD)
                                      --------        --------         --------      ---------
Income attributable to common
 stockholders......................   $  4,744        $(60,650)        $  5,589      $ (38,781)(CC)
                                      ========        ========         ========      =========
Basic earnings per share...........                                                  $   (0.70)(CC)
                                                                                     =========
Diluted earnings per share.........                                                  $   (0.70)(CC)
                                                                                     =========
Weighted average shares
 outstanding.......................                                                     55,109
                                                                                     =========
Weighted average shares and
 equivalents outstanding...........                                                     55,953
                                                                                     =========
</TABLE>
 
                                       103
<PAGE>   110
 
- -------------------------
 
(A)    Represents AIMCO's audited consolidated results of operations for the
       year ended December 31, 1997.
 
(B)    Represents adjustments to reflect the following as if they had occurred
       on January 1, 1997: (i) the 1997 Acquisitions; (ii) the 1997 Stock
       Offerings; (iii) the 1997 Dispositions; (iv) the 1998 Stock Offerings;
       (v) the 1998 Acquisitions; (vi) the Probable Purchases; and (vii) the
       1998 Dispositions.
 
(C)    Represents adjustments to reflect the purchase of the NHP Real Estate
       Companies, the NHP Merger, and the NHP Reorganization, as if the
       transactions had taken place on January 1, 1997. These adjustments are
       detailed, as follows:
 
<TABLE>
<CAPTION>
                               NHP
                           REAL ESTATE        NHP               NHP                 NHP               NHP
                           PURCHASE(I)   HISTORICAL(II)   ADJUSTMENTS(III)   REORGANIZATION(IV)   TRANSACTIONS
                           -----------   --------------   ----------------   ------------------   ------------
<S>                        <C>           <C>              <C>                <C>                  <C>
Rental and other property
  revenues...............    $ 6,660(v)     $ 16,842          $    --             $(16,842)(xvii)    $6,660
Property operating
  expenses...............     (2,941)(v)      (8,411)              --                8,411 (xvii     (2,941)
Owned property management
  expense................       (282)(v)        (862)              --                  862 (xvii       (282)
Depreciation.............     (1,414)(vi)      (2,527)           (693)(xi)           3,220 (xvii     (1,414)
                             -------        --------          -------             --------           ------
Income from property
  operations.............      2,023           5,042             (693)              (4,349)           2,023
                             -------        --------          -------             --------           ------
Management fees and other
  income.................      1,405 (vii      72,176              --              (65,768)(xviii)     7,813
Management and other
  expenses...............     (2,263)(viii)     (35,267)           --               32,136 (xviii    (5,394)
Amortization.............         --          (9,111)          (4,432)(xii)          7,743 (xix      (5,800)
                             -------        --------          -------             --------           ------
Income from service
  company business.......       (858)         27,798           (4,432)             (25,889)          (3,381)
                             -------        --------          -------             --------           ------
General and
  administrative
  expenses...............         --         (16,266)           8,668 (xiii          6,573 (xviii    (1,025)
Interest expense.........     (5,082)(ix)     (10,685)             --               10,305(xx)       (5,462)
Interest income..........        540(v)        1,963               --                 (603)(xxi)      1,900
Minority interest in
  other partnerships.....         16(v)           --               --                   --               16
Equity in losses of
  unconsolidated
  partnerships...........     (3,905)(x)          --           (4,631)(xiv)             (6)          (8,542)
Equity in earnings of
  unconsolidated
  subsidiaries...........         --              --           (4,636)(xv)          10,426 (xxii      5,790
                             -------        --------          -------             --------           ------
Income (loss) from
  operations.............     (7,266)          7,852           (5,724)              (3,543)          (8,681)
Income tax provision.....         --          (3,502)           3,502 (xvi              --               --
                             -------        --------          -------             --------           ------
Income (loss) before
  minority interest in
  the AIMCO Operating
  Partnership............     (7,266)          4,350           (2,222)              (3,543)          (8,681)
Minority interest in the
  AIMCO Operating
  Partnership............      1,437              --               --                  384            1,821
                             -------        --------          -------             --------           ------
Net income (loss)........     (5,829)          4,350           (2,222)              (3,159)          (6,860)
                             =======        ========          =======             ========           ======
</TABLE>
 
                                       104
<PAGE>   111
 
- -------------------------
 
       (i)    Represents the adjustment to record activity from January 1, 1997
              to the date of acquisition, as if the acquisition of the NHP Real
              Estate Companies had occurred on January 1, 1997. The historical
              financial statements of the NHP Real Estate Companies consolidate
              certain real estate partnerships in which they have an interest
              that will be presented on the equity method by AIMCO as a result
              of the NHP Real Estate Reorganization. In addition, represents
              adjustments to record additional depreciation and amortization
              related to the increased basis in the assets of the NHP Real
              Estate Companies as a result of the allocation of the purchase
              price of the NHP Real Estate Companies and additional interest
              expense incurred in connection with borrowings incurred by AIMCO
              to consummate the NHP Real Estate Acquisition.
 
       (ii)    Represents the unaudited consolidated results of operations of
               NHP for the period from January 1, 1997 through December 8, 1997
               (date of the NHP Merger).
 
       (iii)   Represents the following adjustments occurring as a result of the
               NHP Merger: (i) the reduction in personnel costs, primarily
               severance costs, pursuant to a restructuring plan; (ii) the
               incremental depreciation of the purchase price adjustment related
               to real estate; (iii) the incremental amortization of the
               purchase price adjustment related to the management contracts,
               furniture, fixtures and equipment, and goodwill; (iv) the
               reversal of equity in earnings of NHP during the pre-merger
               period when AIMCO held a 47.62% interest in NHP; and (v) the
               amortization of the increased basis in investments in real estate
               partnerships based on the purchase price adjustment related to
               real estate and an estimated average life of 20 years.
 
       (iv)   Represents adjustments related to the NHP Reorganization, whereby
              AIMCO contributed or sold to the Unconsolidated Subsidiaries and
              the Unconsolidated Partnership: (i) certain assets and liabilities
              of NHP, primarily related to the management operations and other
              businesses owned by NHP and (ii) 12 real estate properties
              containing 2,905 apartment units. The adjustments represent (i)
              the related revenues and expenses primarily related to the
              management operations and other businesses owned by NHP and (ii)
              the historical results of operations of such real estate
              partnerships contributed, with additional depreciation and
              amortization recorded related to AIMCO's new basis resulting from
              the allocation of the combined purchase price of NHP and the NHP
              Real Estate Companies.
 
       (v)    Represents adjustments to reflect the acquisition of the NHP Real
              Estate Companies and the corresponding historical results of
              operations as if they had occurred on January 1, 1997.
 
       (vi)   Represents incremental depreciation related to the consolidated
              real estate assets purchased from the NHP Real Estate Companies.
              Buildings and improvements are depreciated on the straight-line
              method over a period of 30 years, and furniture and fixtures are
              depreciated on the straight-line method over a period of 5 years.
 
                                       105
<PAGE>   112
 
       (vii)  Represents the adjustment to record the revenues from ancillary
              businesses purchased from the NHP Real Estate Companies as if the
              acquisition had occurred on January 1, 1997.
 
      (viii)  Represents $4,878 related to the adjustment to record the expenses
              from ancillary businesses purchased from the NHP Real Estate
              Companies as if the acquisition had occurred on January 1, 1997,
              less $2,615 related to a reduction in personnel costs pursuant to
              a restructuring plan, approved by AIMCO senior management,
              assuming that the acquisition of the NHP Real Estate Companies had
              occurred on January 1, 1997 and that the restructuring plan was
              completed on January 1, 1997. The restructuring plan specifically
              identifies all significant actions to be taken to complete the
              restructuring plan, including the reduction of personnel, job
              functions, location and the date of completion.
 
       (ix)   Represents adjustments in the amount of $3,391 to reflect the
              acquisition of the NHP Real Estate Companies and the corresponding
              historical results of operations as if they had occurred on
              January 1, 1997, as well as the increase in interest expense in
              the amount of $1,691 related to borrowings on AIMCO's credit
              facilities of $55,807 to finance the NHP Real Estate Acquisition.
 
       (x)    Represents adjustments in the amount of $2,432 to reflect the
              acquisition of the NHP Real Estate Companies and the corresponding
              historical results of operations as if they had occurred on
              January 1, 1997, as well as amortization of $1,473 related to the
              increased basis in investment in real estate partnerships, as a
              result of the allocation of the purchase price of the NHP Real
              Estate Companies, based on an estimated average life of 20 years.
 
       (xi)   Represents incremental depreciation related to the real estate
              assets purchased from NHP. Buildings and improvements are
              depreciated on the straight-line method over a period of 20 years,
              and furniture and fixtures are depreciated on the straight-line
              method over a period of 5 years.
 
       (xii)  Represents incremental depreciation and amortization of the
              tangible and intangible assets related to the property management
              and other business operated by the Unconsolidated Subsidiaries,
              based on AIMCO's new basis as adjusted by the allocation of the
              combined purchase price of NHP including amortization of
              management contracts of $3,782, depreciation of furniture,
              fixtures and equipment of $2,018 and amortization of goodwill of
              $7,743, less NHP's historical depreciation and amortization of
              $9,111. Management contracts are amortized using the straight-line
              method over the weighted average life of the contracts estimated
              to be approximately 15 years. Furniture, fixtures and equipment
              are depreciated using the straight-line method over the estimated
              life of 3 years. Goodwill is amortized using the straight-line
              method over 20 years.
 
      (xiii)  Represents a reduction in personnel costs, primarily severance
              costs, pursuant to a restructuring plan, approved by AIMCO senior
              management, specifically identifying all significant actions to be
              taken to complete the restructuring plan, assuming that the NHP
              Merger had occurred on
 
                                       106
<PAGE>   113

 
              January 1, 1997 and that the restructuring plan was completed on
              January 1, 1997.
 
       (xiv)  Represents adjustment for amortization of the increased basis in
              investments in real estate partnerships, as a result of the
              allocation of the combined purchase price of NHP and the NHP Real
              Estate Companies, based on an estimated average life of 20 years.
 
       (xv)   Represents the reversal of equity in earnings in NHP during the
              pre-merger period when AIMCO held a 47.62% interest in NHP, as a
              result of AIMCO's acquisition of 100% of the NHP Common Stock.
 
       (xvi)  Represents the reversal of NHP's income tax provision due to the
              contribution of the management business to the Unconsolidated
              Subsidiaries.
 
      (xvii)  Represents the contribution of NHP's 12 real estate properties
              containing 2,905 apartment units to the Unconsolidated Partnership
              pursuant to the NHP Reorganization.
 
      (xviii) Represents the historical income and expenses associated with
              certain assets and liabilities of NHP that were contributed or
              sold to the Unconsolidated Subsidiaries, primarily related to the
              management operations and other businesses owned by NHP.
 
       (xix)  Represents the amortization and depreciation of certain management
              contracts and other assets of NHP, based on AIMCO's new basis
              resulting from the allocation of the purchase price of NHP, that
              will be contributed or sold to the Unconsolidated Subsidiaries,
              primarily related to the management operations and other
              businesses owned by NHP.
 
       (xx)   Represents interest expense of $6,020 related to the contribution
              of NHP's 12 real estate properties containing 2,905 apartment
              units to the Unconsolidated Partnership and interest expense of
              $4,285 related to the certain assets and liabilities that will be
              contributed or sold to the Unconsolidated Subsidiaries pursuant to
              the NHP Reorganization.
 
       (xxi)  Represents the interest income of $5,000 earned on notes payable
              of $50,000 to AIMCO issued as consideration for certain assets and
              liabilities sold to the Unconsolidated Subsidiaries by AIMCO, net
              of the elimination of AIMCO's share of the related interest
              expense of $4,750 reflected in the equity in earnings of the
              Unconsolidated Subsidiaries operating results, offset by $853 in
              interest income primarily related to the management operations and
              other businesses owned by NHP contributed or sold to the
              Unconsolidated Subsidiaries pursuant to the NHP Reorganization.
 
       (xxii) Represents AIMCO's equity in earnings of the Unconsolidated
              Subsidiaries.
 
(D)    Represents the audited historical statement of operations of Ambassador
       for the year ended December 31, 1997. Certain reclassifications have been
       made to Ambassador's historical statement of operations to conform to
       AIMCO's Statement of Operations presentation. The Ambassador historical
       statement of operations excludes extraordinary loss of $1,384 and a loss
       on sale of an interest rate cap of $509.
 
(E)    Represents the following adjustments occurring as a result of the
       Ambassador Merger: (i) the incremental depreciation of the purchase price
       adjustment related
 
                                       107
<PAGE>   114
 
       to real estate; (ii) the reduction in personnel costs, primarily
       severance costs, pursuant to a restructuring plan; (iii) the reduction of
       interest expense resulting from the net reduction of debt; and (iv) the
       elimination of the minority interest associated with Jupiter-I, L.P.
 
(F)    Represents adjustments to reflect the IFG Merger, the AMIT Merger, and
       the spin-off of New Insignia as if these transactions had occurred on
       January 1, 1997. These adjustments are detailed, as follows:
 
<TABLE>
<CAPTION>
                                           IFG           AMIT      NEW INSIGNIA        IFG
                                      HISTORICAL(I)   MERGER(II)   SPIN-OFF(III)   AS ADJUSTED
                                      -------------   ----------   -------------   -----------
   <S>                                <C>             <C>          <C>             <C>
   Rental and other property
     revenues.......................    $   6,646      $   266       $      --      $  6,912
   Property operating expenses......       (3,251)         (56)             --        (3,307)
   Depreciation.....................         (966)          --              --          (966)
                                        ---------      -------       ---------      --------
   Income from property
     operations.....................        2,429          210              --         2,639
                                        ---------      -------       ---------      --------
   Management fees and other
     income.........................      389,626           --        (295,296)       94,330
   Management and other expenses....     (315,653)          --         258,038       (57,615)
   Amortization.....................      (31,709)        (303)         15,244       (16,768)
                                        ---------      -------       ---------      --------
   Income from service company
     business.......................       42,264         (303)        (22,014)       19,947
                                        ---------      -------       ---------      --------
   General and administrative
     expenses.......................      (20,435)      (1,351)            587       (21,199)
   Interest expense.................       (9,353)          --             318        (9,035)
   Interest income/recovery of bad
     debt...........................        4,571        6,853            (457)       10,967
   Minority interest in other
     partnerships...................      (12,448)        (382)            (41)      (12,871)
   Equity in income (losses) of
     unconsolidated partnership.....       10,027        2,639            (151)       12,515
                                        ---------      -------       ---------      --------
   Income (loss) from operations....       17,055        7,666         (21,758)        2,963
   Income tax provision.............       (6,822)        (180)          8,703         1,701
   Gain on sale of property.........           --           80              --            80
                                        ---------      -------       ---------      --------
   Net income (loss)................       10,233        7,566         (13,055)        4,744
                                        =========      =======       =========      ========
</TABLE>
 
- -------------------------
 
         (i)  Represents the audited consolidated results of operations of IFG
              for the year ended December 31, 1997, as reported in IFG's Annual
              Report on Form 10-K. Certain reclassifications have been made to
              IFG's historical statement of operations to conform to AIMCO's
              statement of operations presentation.
 
        (ii)  Represents the historical statement of operations of AMIT, as well
              as pro forma adjustments related to the AMIT Merger. The AMIT
              Merger closed prior to the IFG Merger.
 
        (iii) Represents the distribution of two shares of New Insignia common
              stock for each three shares of IFG common stock to holders of IFG
              common stock.
 
(G)    Represents the following adjustments occurring as a result of the IFG
       Merger and the IPLP Exchange: (i) the incremental depreciation of the
       purchase price adjustment related to consolidated real estate and
       investments in real estate partnerships; (ii) the amortization of
       goodwill and property management contracts resulting from the IFG Merger;
       (iii) the increase in interest expense resulting from the net increase in
       debt; and (iv) the elimination of the income tax provision.
 
                                       108
<PAGE>   115
 
(H)    Represents adjustments related to the IFG Reorganization, whereby,
       following the IFG Merger, AIMCO contributed or sold to the Unconsolidated
       Subsidiaries certain assets and liabilities of IFG, primarily management
       contracts and related working capital assets and liabilities related to
       IFG's third party management operations. The adjustments reflect the
       related revenues and expenses primarily related to the management
       operations owned by IFG, with additional amortization recorded related to
       AIMCO's new basis resulting from the allocation of the purchase price of
       IFG.
 
(I)    Represents adjustments to reflect the 1997 Property Acquisitions and the
       1998 Acquisitions, less the 1997 Dispositions and the 1998 Dispositions
       as if they had occurred on January 1, 1997. These pro forma operating
       results are based on historical results of the properties, except for
       depreciation, which is based on AIMCO's investment in the properties.
 
       These adjustments are as follows:
 
<TABLE>
<CAPTION>
                              1997 PROPERTY       1997           1998           1998
                              ACQUISITIONS    DISPOSITIONS   ACQUISITIONS   DISPOSITIONS    TOTAL
                              -------------   ------------   ------------   ------------   --------
<S>                           <C>             <C>            <C>            <C>            <C>
Rental and other property
  revenues..................    $ 88,589        $(4,081)       $ 37,266       $(3,303)     $118,471
Property operating
  expense...................     (44,109)         1,944         (17,784)        1,354       (58,595)
Owned property management
  expense...................      (3,233)           133          (1,278)          122        (4,256)
Depreciation................     (16,839)           452          (8,226)          688       (23,925)
</TABLE>
 
(J)    Represents adjustments to reflect the Probable Purchases as if they had
       occurred on January 1, 1997. These pro forma operating results are based
       on historical results of the properties, except for depreciation, which
       is based on AIMCO's investment in the properties.
 
(K)    Represents adjustments to interest expense for the following:
 
<TABLE>
   <S>                                                            <C>
   Borrowings on AIMCO's credit facilities and other loans and
     mortgages assumed in connection with the 1997 Property
     Acquisitions..............................................   $(29,490)
   Repayments on AIMCO's credit facilities and other
     indebtedness with proceeds from the 1997 Dispositions and
     the 1997 Stock Offerings..................................     19,568
   Repayments on AIMCO's credit facilities with proceeds from a
     dividend received from one of the Unconsolidated
     Subsidiaries..............................................      1,889
   Borrowings on AIMCO's credit facilities and other loans and
     mortgages assumed in connection with the 1998
     Acquisitions..............................................    (14,922)
   Repayments on AIMCO's credit facilities and other
     indebtedness with proceeds from the 1998 Dispositions and
     the 1998 Stock Offerings..................................     20,113
                                                                  --------
                                                                  $ (2,842)
                                                                  ========
</TABLE>
 
(L)    Represents adjustments to interest expense related to the assumption of
       mortgage debt in connection with the Probable Purchases.
 
(M)    Represents income related to limited partners in consolidated
       partnerships acquired in connection with the 1997 Property Acquisitions
       and the 1998 Property Acquisitions.
 
                                       109
<PAGE>   116
 
(N)    Represents the reduction in AIMCO's earnings in unconsolidated
       partnerships as a result of the consolidation of additional partnerships
       resulting from additional ownership acquired through tender offers.
 
(O)    Represents incremental depreciation related to the real estate assets
       purchased in connection with the Ambassador Merger. Buildings and
       improvements are depreciated on the straight-line method over a period of
       30 years, and furniture and fixtures are depreciated on the straight-line
       method over a period of 5 years.
 
(P)    Decrease results from identified historical costs of certain items which
       will be eliminated or reduced as a result of the Ambassador Merger, as
       follows:
 
<TABLE>
   <S>                                                            <C>
   Duplication of public company expenses......................   $  724
   Reduction in salaries and benefits..........................    4,197
   Merger related costs........................................      524
   Other.......................................................    1,947
                                                                  ------
                                                                  $7,392
                                                                  ======
</TABLE>
 
       The reduction in salaries and benefits is pursuant to a restructuring
       plan, approved by AIMCO senior management, assuming that the Ambassador
       Merger had occurred on January 1, 1997 and that the restructuring plan
       was completed on January 1, 1997. The restructuring plan specifically
       identifies all significant actions to be taken to complete the
       restructuring plan, including the reduction of personnel, job functions,
       location and date of completion.
 
(Q)    Represents the decrease in interest expense of $3,612 related to the
       repayment of the Ambassador revolving lines of credit upon consummation
       of the Ambassador Merger, offset by an increase in interest expense of
       $3,833 related to borrowings under AIMCO's credit facilities.
 
(R)    Represents elimination of minority interest in Jupiter-I, L.P. resulting
       from the redemption of limited partnership interests not owned by
       Ambassador in connection with the Ambassador Merger.
 
(S)    Represents incremental depreciation related to the consolidated real
       estate assets purchased in connection with the IFG Merger, based on
       AIMCO's new basis resulting from the allocation of the purchase price of
       IFG. Buildings and improvements are depreciated on the straight-line
       method over a period of 20 years, and furniture and fixtures are
       depreciated on the straight-line method over a period of 5 years.
 
(T)    Represents incremental depreciation and amortization of the tangible and
       intangible assets related to the property management business of IFG,
       based on AIMCO's new basis resulting from the allocation of the purchase
       price of IFG, including amortization of property management contracts of
       $36,112, amortization of goodwill of $11,009, and depreciation of
       furniture, fixtures, and equipment of $3,753, less IFG's historical
       depreciation and amortization of $16,465. Property management contracts
       are amortized using the straight-line method over a period of three
       years. Furniture, fixtures, and equipment are depreciated using the
       straight-line method over a period of three years. Goodwill is amortized
       using the straight-line method over 20 years.
 
                                       110
<PAGE>   117
 
(U)    In connection with the IPLP Exchange, IPLP received approximately 10.2
       million OP Units in exchange for the transfer of the economic rights to a
       substantial portion of its assets to the AIMCO Operating Partnership, and
       the AIMCO Operating Partnership assumed all of IPT's obligations relating
       to the assets. Distributions of $7,008 for these OP Units related to the
       minority holders. This adjustment represents these distributions, offset
       by the elimination of the historical minority interest in IPT of $1,552.
 
(V)    Represents amortization related to the increased basis in investment in
       real estate partnerships, as a result of the allocation of the purchase
       price of IFG and the IPLP Exchange, based on an estimated average life of
       20 years.
 
(W)    Represents the reversal of IFG's income tax provision.
 
(X)    Represents the historical income and expenses associated with certain
       assets and liabilities of IFG that were contributed or sold to the
       Unconsolidated Subsidiaries, primarily related to the management
       operations of IFG.
 
(Y)    Represents the depreciation and amortization of certain management
       contracts and furniture, fixtures, and equipment that were contributed or
       sold to the Unconsolidated Subsidiaries, primarily related to the
       management operations of IFG, based on AIMCO's new basis resulting from
       the allocation of the purchase price of IFG.
 
(Z)    Represents interest income of $3,825 earned on notes payable of $45,000
       to AIMCO issued as consideration for certain assets and liabilities sold
       to the Unconsolidated Subsidiaries by AIMCO, net of the elimination of
       AIMCO's share of the related interest expense of $3,634 reflected on the
       equity in earnings of the Unconsolidated Subsidiaries.
 
(AA)   Represents AIMCO's equity in earnings of the Unconsolidated Subsidiaries.
 
(BB)   Represents adjustments to Minority Interest in the AIMCO Operating
       Partnership assuming the Completed Transactions, the NHP Transactions,
       the Ambassador Merger, and the IFG Merger had occurred as of January 1,
       1997. On a pro forma basis, without giving effect to the NHP
       Transactions, the Ambassador Merger, and the IFG Merger as of December
       31, 1997, the minority interest percentage is approximately 18.5%. On a
       pro forma basis, without giving effect to the Ambassador Merger, and the
       IFG Merger, as of December 31, 1997, the minority interest percentage is
       approximately 15.9%. On a pro forma basis, without giving effect to the
       IFG Merger, as of December 31, 1997, the minority interest percentage is
       approximately 14.0%. On a pro forma basis, giving effect to the Completed
       Transactions, the NHP Transactions, the Ambassador Merger, the IFG Merger
       and the IPLP Exchange, as of December 31, 1997, the minority interest
       percentage is approximately 12.1%.
 
                                       111
<PAGE>   118
 
(CC)   The following table presents the net impact to pro forma net loss
       applicable to holders of shares of AIMCO Common Stock and net loss per
       share of AIMCO Common Stock assuming the interest rate per annum
       increases by 0.25%:
 
<TABLE>
<S>                                                            <C>
          Increase in interest expense......................   $    858
                                                               ========
          Income before minority interest in the AIMCO
             Operating Partnership..........................   $ (3,804)
          Minority interest in the AIMCO Operating
             Partnership....................................      5,442
                                                               --------
          Net income........................................   $  1,638
                                                               ========
          Net loss attributable to common stockholders......   $(39,536)
                                                               ========
          Basic loss per share..............................   $  (0.72)
                                                               ========
          Diluted loss per share............................   $  (0.72)
                                                               ========
</TABLE>
 
(DD)   Represents the net income attributable to holders of the Class B
       Preferred Stock, the Class C Preferred Stock, the Class D Preferred
       Stock, the Class G Preferred Stock, the Class H Preferred Stock and the
       Class J Preferred Stock as if these stock offerings had occurred as of
       January 1, 1997.
 
(EE)   Represents AIMCO's equity in earnings in the Unconsolidated Subsidiaries
       of $(2,139), plus the elimination of intercompany interest expense of
       $8,384. The combined Pro Forma Statement of Operations of the
       Unconsolidated Subsidiaries for the year ended December 31, 1997 is
       presented below, which represents the effects of the Ambassador Merger,
       the NHP Merger, the NHP Reorganization, the IFG Merger, and the IFG
       Reorganization as if these transactions had occurred as of January 1,
       1997.
 
                                       112
<PAGE>   119
 
                          UNCONSOLIDATED SUBSIDIARIES
 
          PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (PRE-MERGER)
                      FOR THE YEAR ENDED DECEMBER 31, 1997
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                            REORGANIZATION            IFG
                            HISTORICAL(I)   ADJUSTMENTS(II)   REORGANIZATION(III)   PRO FORMA
                            -------------   ---------------   -------------------   ---------
<S>                         <C>             <C>               <C>                   <C>
Rental and other property
  revenues................    $  6,194         $  6,371(iv)        $     --         $ 12,565
Property operating
  expenses................      (3,355)          (3,531)(iv)             --           (6,886)
Owned property management
  expense.................        (147)            (478)(iv)             --             (625)
Depreciation expense......      (1,038)            (767)(iv)             --           (1,805)
                              --------         --------            --------         --------
Income from property
  operations..............       1,654            1,595                  --            3,249
                              --------         --------            --------         --------
Management fees and other
  income..................      23,776           41,992(v)           74,404(x)       140,172
Management and other
  expenses................     (11,733)         (20,403)(v)         (49,236)(x)      (81,372)
Amortization..............      (3,726)          (4,017)(v)         (28,355)(xi)     (36,098)
                              --------         --------            --------         --------
Income from service
  company.................       8,317           17,572              (3,187)          22,702
General and administrative
  expense.................          --           (6,573)(v)          (6,392)(x)      (12,965)
Interest expense..........      (6,058)          (5,849)(vi)         (3,825)(xii)    (15,732)
Interest income...........       1,001             (148)(v)              --              853
Minority interest in other
  partnerships............      (2,819)           2,198 (viii            --             (621)
Equity in losses of
  unconsolidated
  partnerships............      (1,028)           1,028(iv)              --               --
Equity in earnings of
  Unconsolidated
  Subsidiaries............       2,943           (2,943)(vii)            --               --
                              --------         --------            --------         --------
Income (loss) from
  operations..............       4,010            6,880             (13,404)          (2,514)
Income tax provision......      (1,902)          (3,013)(ix)          5,177 (xiii        262
                              --------         --------            --------         --------
Net income (loss).........    $  2,108         $  3,867            $ (8,227)        $ (2,252)
                              ========         ========            ========         ========
Income attributable to
  preferred
  stockholders............    $  2,003         $  3,673            $ (7,815)        $ (2,139)
                              ========         ========            ========         ========
Income (loss) attributable
  to common
  stockholders............    $    105         $    194            $   (412)        $   (113)
                              ========         ========            ========         ========
</TABLE>
 
- -------------------------
 
(i)   Represents the historical results of operations of the Unconsolidated
      Subsidiaries for the year ended December 31, 1997.
 
(ii)  Represents adjustments related to the NHP Reorganization, which includes
      the sale or contribution of 14 properties containing 2,725 apartment units
      from the
                                       113
<PAGE>   120
         unconsolidated partnerships to the Unconsolidated Subsidiaries, as well
         as the sale or contribution of 12 properties containing 2,905 apartment
         units from the Unconsolidated Subsidiaries to the Unconsolidated
         Partnership.
 
(iii)    Represents adjustments related to the IFG Reorganization, whereby,
         following the IFG Merger, AIMCO contributed or sold to the
         Unconsolidated Subsidiaries certain assets and liabilities of IFG,
         primarily related to the management operations owned by IFG. The
         adjustments reflect the related revenues and expenses primarily related
         to the management operations owned by IFG, with additional amortization
         recorded related to AIMCO's new basis resulting from the allocation of
         the purchase price of IFG.
 
(iv)     Represents adjustments for the historical results of operations of the 
         14 real estate properties contributed or sold to the Unconsolidated
         Subsidiaries, offset by the historical results of operations of the 12
         real estate properties contributed or sold to the Unconsolidated
         Partnership, with additional depreciation recorded related to AIMCO's
         new basis resulting from the allocation of purchase price of NHP and
         the NHP Real Estate Companies.
 
(v)      Represents adjustments to reflect income and expenses associated with
         certain assets and liabilities of NHP contributed or sold to the
         Unconsolidated Subsidiaries.
 
(vi)     Represents adjustments of $6,058 to reverse the historical interest
         expense of the Unconsolidated Subsidiaries, which resulted from its
         original purchase of NHP Common Stock, offset by $2,622 related to the
         contribution or sale of the 14 real estate properties, $4,285 related
         to assets and liabilities transferred from AIMCO to the Unconsolidated
         Subsidiaries and $5,000 related to a note payable to AIMCO.
 
(vii)    Represents the reversal of the historical equity in earnings of NHP for
         the period in which NHP was not consolidated by the Unconsolidated
         Subsidiaries.
 
(viii)   Represents the minority interest in the operations of the 14 real 
         estate properties.
 
(ix)     Represents the estimated Federal and state tax provisions, which are
         calculated on the pro forma operating results of the Unconsolidated
         Subsidiaries, excluding amortization of goodwill which is not
         deductible for tax purposes.
 
(x)      Represents the historical income and expenses associated with certain
         assets and liabilities of IFG that were contributed or sold to the
         Unconsolidated Subsidiaries, primarily related to the management
         operations of IFG.
 
(xi)     Represents the depreciation and amortization of certain management
         contracts and furniture, fixtures, and equipment that were contributed
         or sold to the Unconsolidated Subsidiaries, primarily related to the
         management operations of IFG, based on AIMCO's new basis resulting
         from the allocation of the purchase price of IFG.
 
(xii)    Represents adjustment for interest expense related to a note payable to
         AIMCO.
 
(xiii)   Represents the estimated Federal and state tax provisions, which are
         calculated on the pro forma operating results of the Unconsolidated
         Subsidiaries, excluding amortization of goodwill, which is not
         deductible for tax purposes.

 
                                       114
<PAGE>   121
 
                                     AIMCO
 
          PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (PRE-MERGER)
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1998
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                   COMPLETED
                                                 TRANSACTIONS                       AMBASSADOR                        IFG
                                                 AND PROBABLE      AMBASSADOR     PURCHASE PRICE     IFG AS          MERGER
                                HISTORICAL(A)    PURCHASES(B)     HISTORICAL(C)   ADJUSTMENTS(D)   ADJUSTED(E)   ADJUSTMENTS(F)
                                -------------   ---------------   -------------   --------------   -----------   --------------
<S>                             <C>             <C>               <C>             <C>              <C>           <C>
Rental and other property
  revenues.....................   $ 265,700        $ 18,063(H)
                                                      9,938(I)      $ 35,480         $    --        $  8,126        $     --
Property operating expenses....    (101,600)         (8,116)(H)
                                                     (4,638)(I)      (14,912)             --          (2,585)             --
Owned property management
  expense......................      (7,746)           (670)(H)
                                                       (517)(I)           --              --              --              --
Depreciation...................     (59,792)         (3,852)(H)
                                                     (3,659)(I)       (7,270)         (1,420)(M)        (904)         (1,273)(Q)
                                  ---------        --------         --------         -------        --------        --------
Income from property
  operations...................      96,562           6,549           13,298          (1,420)          4,637          (1,273)
                                  ---------        --------         --------         -------        --------        --------
Management fees and other
  income.......................      13,968              --               --              --          71,155              --
Management and other
  expenses.....................      (8,101)             --               --              --         (41,477)             --
Corporate overhead
  allocation...................        (196)             --               --              --              --              --
Amortization...................          (3)             --               --              --         (13,986)        (24,244)(R)
                                  ---------        --------         --------         -------        --------        --------
Income from service company
  business.....................       5,668              --               --              --          15,692         (24,244)
                                  ---------        --------         --------         -------        --------        --------
General and administrative
  expenses.....................      (7,444)             --           (5,278)          5,278(N)      (61,386)         45,823(S)
Interest expense...............     (56,756)          2,432(J)
                                                     (3,273)(K)      (10,079)            145(O)      (24,871)             --
Interest income................      18,244              --                               --          22,501              --
Minority interest in other
  partnerships.................      (1,052)            537(L)          (252)            252(P)      (14,159)            229(T)
Equity in losses of
  unconsolidated
  partnerships.................      (5,078)             --              (71)             --          13,492         (14,304)(U)
Equity in earnings of
  unconsolidated
  subsidiaries.................       8,413              --               --              --              --              --
Amortization of goodwill.......      (5,071)             --               --              --              --              --
                                  ---------        --------         --------         -------        --------        --------
Income (loss) from
  operations...................      53,486           6,245           (2,382)          4,255         (44,094)          6,231
Income tax provision...........          --              --               --              --           1,180          (1,180)(V)
Gain on dispositions of
  property.....................       2,783          (2,783)              --              --           6,576          (6,576)
                                  ---------        --------         --------         -------        --------        --------
Income before minority interest
  in AIMCO Operating
  Partnership..................      56,269           3,462           (2,382)          4,255         (36,338)         (1,525)
Minority interest in AIMCO
  Operating Partnership........      (4,425)             44(AA)           --             270(AA)          --           4,094(AA)
                                  ---------        --------         --------         -------        --------        --------
Net income (loss)..............      51,844           3,506           (2,382)          4,525         (36,338)          2,569
Income attributable to
  preferred stockholders.......      16,320          14,594               --              --              --              --
                                  ---------        --------         --------         -------        --------        --------
Income (loss) attributable to
  common stockholders..........   $  35,524        $(11,088)        $ (2,382)        $ 4,525        $(36,338)       $  2,569
                                  =========        ========         ========         =======        ========        ========
Basic earnings (loss) per
  share........................   $    0.80
                                  =========
Diluted earnings (loss) per
  share........................   $    0.79
                                  =========
Weighted average shares
  outstanding..................      44,562
                                  =========
Weighted average shares and
  equivalents outstanding......      44,765
                                  =========
 
<CAPTION>
 
                                      IFG
                                 REORGANIZATION
                                 ADJUSTMENTS(G)   PRO FORMA
                                 --------------   ---------
<S>                              <C>              <C>
Rental and other property
  revenues.....................
                                    $     --      $337,307
Property operating expenses....
                                          --      (131,851)
Owned property management
  expense......................
                                          --        (8,933)
Depreciation...................
                                          --       (78,170)
                                    --------      --------
Income from property
  operations...................           --       118,353
                                    --------      --------
Management fees and other
  income.......................      (56,211)(W)    28,912
Management and other
  expenses.....................       35,192(W)    (14,386)
Corporate overhead
  allocation...................           --          (196)
Amortization...................       21,266(X)    (16,967)
                                    --------      --------
Income from service company
  business.....................          247        (2,637)
                                    --------      --------
General and administrative
  expenses.....................       13,800(W)     (9,207)
Interest expense...............
                                          --       (92,402)(BB)
Interest income................          143(Y)     40,888
Minority interest in other
  partnerships.................           --       (14,445)
Equity in losses of
  unconsolidated
  partnerships.................           --        (5,961)
Equity in earnings of
  unconsolidated
  subsidiaries.................       (6,875)(Z)     1,538(DD)
Amortization of goodwill.......           --        (5,071)
                                    --------      --------
Income (loss) from
  operations...................        7,315        31,056
Income tax provision...........           --            --
Gain on dispositions of
  property.....................           --            --
                                    --------      --------
Income before minority interest
  in AIMCO Operating
  Partnership..................        7,315        31,056
Minority interest in AIMCO
  Operating Partnership........           --           (17)(AA)
                                    --------      --------
Net income (loss)..............        7,315        31,039(BB)
Income attributable to
  preferred stockholders.......           --        30,914(CC)
                                    --------      --------
Income (loss) attributable to
  common stockholders..........     $  7,315      $    125(BB)
                                    ========      ========
Basic earnings (loss) per
  share........................                   $   0.00(BB)
                                                  ========
Diluted earnings (loss) per
  share........................                   $   0.00(BB)
                                                  ========
Weighted average shares
  outstanding..................                     56,323
                                                  ========
Weighted average shares and
  equivalents outstanding......                     56,988
                                                  ========
</TABLE>
 
                                       115
<PAGE>   122
 
- -------------------------
 
(A)    Represents AIMCO's unaudited consolidated results of operations for the
       nine months ended September 30, 1998.
 
(B)    Represents adjustments to reflect the following as if they had occurred
       on January 1, 1998: (i) the 1998 Stock Offerings; (ii) the 1998
       Acquisitions; (iii) the Probable Purchases; and (iv) the 1998
       Dispositions.
 
(C)    Represents the unaudited historical statement of operations of Ambassador
       for the four months ended April 30, 1998. Certain reclassifications have
       been made to Ambassador's historical Statement of Operations to conform
       to AIMCO's Statement of Operations presentation.
 
(D)    Represents the following adjustments occurring as a result of the
       Ambassador Merger:  (i) the incremental depreciation of the purchase
       price adjustment related to real estate; (ii) the reduction in personnel
       costs, primarily severance costs, pursuant to a restructuring plan; (iii)
       the reduction of interest expense resulting from the net reduction of
       debt; and (iv) the elimination of the minority interest associated with
       Jupiter-I, L.P.
 
(E)    Represents adjustments to reflect the IFG Merger, the AMIT Merger, and
       the spin-off of the common stock of New Insignia as if these transactions
       had occurred on January 1, 1998. These adjustments are detailed, as
       follows:
 
<TABLE>
<CAPTION>
                                            IFG           AMIT      NEW INSIGNIA        IFG
                                       HISTORICAL(I)   MERGER(II)   SPIN-OFF(III)   AS ADJUSTED
                                       -------------   ----------   -------------   -----------
   <S>                                 <C>             <C>          <C>             <C>
   Rental and other property
     revenues........................    $   7,566       $  560       $      --      $  8,126
   Property operating expenses.......       (2,585)          --              --        (2,585)
   Depreciation......................         (904)          --              --          (904)
                                         ---------       ------       ---------      --------
   Income from property operations...        4,077          560              --         4,637
                                         ---------       ------       ---------      --------
   Management fees and other
     income..........................      311,475           --        (240,320)       71,155
   Management and other expenses.....     (252,295)          --         210,818       (41,477)
   Amortization......................      (26,781)         (48)         12,843       (13,986)
                                         ---------       ------       ---------      --------
   Income from service company
     business........................       32,399          (48)        (16,659)       15,692
                                         ---------       ------       ---------      --------
   General and administrative
     expenses........................      (66,272)        (675)          5,561       (61,386)
   Interest expense..................      (24,164)          --            (707)      (24,871)
   Interest income/recovery of bad
     debt............................       18,817        4,193            (509)       22,501
   Minority interest in other
     partnerships....................      (14,159)          --              --       (14,159)
   Equity in losses of unconsolidated
     partnerships....................       12,169           --           1,323        13,492
                                         ---------       ------       ---------      --------
   Income (loss) from operations.....      (37,133)       4,030         (10,991)      (44,094)
   Income tax provision..............       (4,772)          --           5,952         1,180
   Gain on disposition of
     property/loans..................        5,888          688              --         6,576
                                         ---------       ------       ---------      --------
   Item income (loss)................    $ (36,017)      $4,718       $  (5,039)     $(36,338)
                                         =========       ======       =========      ========
</TABLE>
 
- -------------------------
 
       (i)  Represents the unaudited consolidated results of operations of IFG
            for the nine months ended September 30, 1998. Certain
            reclassifications have been made to IFG's historical statement of
            operations to conform to AIMCO's statement of operations
            presentation.
 
                                       116
<PAGE>   123
 
       (ii)  Represents the historical statement of operations of AMIT, as well
             as pro forma adjustments related to the AMIT Merger. The AMIT
             Merger closed prior to the IFG Merger.
 
       (iii) Represents the distribution of two shares of New Insignia common
             stock for each three shares of IFG common stock to holders of IFG
             common stock.
 
(F)    Represents the following adjustments occurring as a result of the IFG
       Merger and the IPLP Exchange:  (i) the incremental depreciation of the
       purchase price adjustment related to consolidated real estate and
       investments in real estate partnerships; (ii) the amortization of
       goodwill and property management contracts resulting from the IFG Merger;
       (iii) the increase in interest expense resulting from the net increase in
       debt; and (iv) the elimination of the income tax provision.
 
(G)    Represents adjustments related to the IFG Reorganization, whereby,
       following the IFG Merger, AIMCO contributed or sold to the combined
       Unconsolidated Subsidiaries certain assets and liabilities of IFG,
       primarily management contracts and related working capital assets and
       liabilities related to IFG's third party management operations. The
       adjustments reflect the related revenues and expenses primarily related
       to the management operations owned by IFG, with additional amortization
       recorded related to AIMCO's new basis resulting from the allocation of
       the purchase price of IFG.
 
(H)    Represents adjustments to reflect the 1998 Acquisitions, less the 1998
       Dispositions as if they had occurred on January 1, 1998. These pro forma
       operating results are based on historical results of the properties,
       except for depreciation, which is based on AIMCO's investment in the
       properties.
 
       These adjustments are as follows:
 
<TABLE>
<CAPTION>
                                                 1998           1998
                                             ACQUISITIONS   DISPOSITIONS    TOTAL
                                             ------------   ------------   -------
   <S>                                       <C>            <C>            <C>
   Rental and other property revenues......    $19,014         $(951)      $18,063
   Property operating expense..............     (8,492)          376        (8,116)
   Owned property management expense.......       (707)           37          (670)
   Depreciation............................     (3,945)           93        (3,852)
</TABLE>
 
(I)    Represents adjustments to reflect the Probable Purchases as if they had
       occurred on January 1, 1998. These pro forma operating results are based
       on historical results of the properties, except for depreciation, which
       is based on AIMCO's investment in the properties.
 
(J)    Represents adjustments to interest expense for the following:
 
<TABLE>
   <S>                                                           <C>
   Borrowings on AIMCO's credit facilities and other loans and
     mortgages assumed in connection with the 1998
     Acquisitions.............................................   $(7,894)
   Repayments on AIMCO's credit facilities and other
     indebtedness with proceeds from the 1998 Dispositions and
     the 1998 Stock Offerings.................................    10,326
                                                                 -------
                                                                 $ 2,432
                                                                 =======
</TABLE>
 
                                       117
<PAGE>   124
 
(K)    Represents adjustments to interest expense related to the assumption of
       mortgage debt in connection with the probable purchases.
 
(L)    Represents income related to limited partners in consolidated
       partnerships acquired in connection with the 1998 Acquisitions.
 
(M)    Represents incremental depreciation related to the real estate assets
       purchased in connection with the Ambassador Merger. Buildings and
       improvements are depreciated on the straight-line method over a period of
       30 years, and furniture and fixtures are depreciated on the straight-line
       method over a period of 5 years.
 
(N)    Decrease results from identified historical costs of certain items which
       will be eliminated or reduced as a result of the Ambassador Merger, as
       follows:
 
<TABLE>
   <S>                                                           <C>
   Duplication of public company expenses......................  $  355
   Reduction in salaries and benefits..........................   2,482
   Merger related costs........................................   1,212
   Other.......................................................   1,229
                                                                 ------
                                                                 $5,278
                                                                 ======
</TABLE>
 
       The reduction in salaries and benefits is pursuant to a restructuring
       plan, approved by AIMCO senior management, assuming that the Ambassador
       Merger had occurred on January 1, 1998 and that the restructuring plan
       was completed on January 1, 1998. The restructuring plan specifically
       identifies all significant actions to be taken to complete the
       restructuring plan, including the reduction of personnel, job functions,
       location and date of completion.
 
(O)    Represents the decrease in interest expense of $1,480 related to the
       repayment of the Ambassador revolving lines of credit upon consummation
       of the Ambassador Merger, offset by an increase in interest expense of
       $1,335 related to borrowings under the AIMCO line of credit.
 
(P)    Represents elimination of minority interest in Jupiter-I, L.P. resulting
       from the redemption of limited partnership interests not owned by
       Ambassador in connection with the Ambassador Merger.
 
(Q)    Represents incremental depreciation related to the consolidated real
       estate assets purchased in connection with the IFG Merger, based on
       AIMCO's new basis resulting from the allocation of the purchase price of
       IFG. Buildings and improvements are depreciated on the straight-line
       method over a period of 20 years, and furniture and fixtures are
       depreciated on the straight-line method over a period of 5 years.
 
(R)    Represents incremental depreciation and amortization of the tangible and
       intangible assets related to the property management business of IFG,
       based on AIMCO's new basis resulting from the allocation of the purchase
       price of IFG, including amortization of property management contracts of
       $27,084, amortization of goodwill of $8,256, and depreciation of
       furniture, fixtures, and equipment of $2,842, less IFG's historical
       depreciation and amortization of $13,938. Property management contracts
       are amortized using the straight-line method over a period of three
       years. Furniture, fixtures, and equipment are depreciated using the
       straight-line method
 
                                       118
<PAGE>   125
 
       over a period of three years. Goodwill is amortized using the
       straight-line method over 20 years.
 
(S)    Represents the elimination of merger related expenses recorded by IFG
       during the nine months ended September 30, 1998. In connection with the
       IFG Merger, certain IFG executives will receive one-time lump-sum
       payments in connection with the termination of their employment and
       option agreements. The total of these lump sum payments is estimated to
       be approximately $50,000.
 
(T)    In connection with the IPLP Exchange, IPLP received approximately 10.2
       million OP Units in exchange for the transfer of the economic rights to a
       substantial portion of its assets to the AIMCO Operating Partnership, and
       the AIMCO Operating Partnership assumed all of IPLP's obligations
       relating to the assets. Distributions of $6,393 for these OP Units
       related to the minority holders. This adjustment represents these
       distributions, offset by the elimination of the historical minority
       interest in IPT of $6,622.
 
(U)    Represents amortization related to the increased basis in investment in
       real estate partnerships, as a result of the allocation of the purchase
       price of IFG and the IPLP Exchange, based on an estimated average life of
       20 years.
 
(V)    Represents the reversal of IFG's income tax provision.
 
(W)    Represents the historical income and expenses associated with certain
       assets and liabilities of IFG that were contributed or sold to the
       Unconsolidated Subsidiaries, primarily related to the management
       operations of IFG.
 
(X)    Represents the depreciation and amortization of certain management
       contracts and furniture, fixtures, and equipment that were contributed or
       sold to the Unconsolidated Subsidiaries, primarily related to the
       management operations of IFG, based on AIMCO's new basis resulting from
       the allocation of the purchase price of IFG.
 
(Y)    Represents interest income of $2,861 earned on notes payable of $45,000
       to AIMCO issued as consideration for certain assets and liabilities sold
       to the Unconsolidated Subsidiaries of AIMCO, net of the elimination of
       AIMCO's share of the related interest expense of $2,718 reflected in the
       equity in earnings of the Unconsolidated Subsidiaries.
 
(Z)    Represents AIMCO's equity in earnings of the Unconsolidated Subsidiaries.
 
(AA)   Represents adjustments to minority interest in the AIMCO Operating
       Partnership assuming the Completed Transactions, the Ambassador Merger,
       and the IFG Merger had occurred as of January 1, 1997. On a pro forma
       basis, without giving effect to the Ambassador Merger, and the IFG
       Merger, as of September 30, 1998, the minority interest percentage is
       approximately 15.2%. On a pro forma basis, without giving effect to the
       IFG Merger, as of September 30, 1998, the minority interest percentage is
       approximately 13.4%. On a pro forma basis, giving effect to the Completed
       Transactions, the Ambassador Merger, the IFG Merger and the IPLP
       Exchange, as of September 30, 1998, the minority interest percentage is
       approximately 11.7%.
 
                                       119
<PAGE>   126
 
(BB)   The following table presents the net impact to pro forma net income
       applicable to holders of shares of AIMCO Common Stock and net income per
       share of AIMCO Common Stock assuming the interest rate per annum
       increases by 0.25%:
 
<TABLE>
   <S>                                                           <C>
   Increase in interest........................................  $   641
                                                                 =======
   Income before minority interest in the AIMCO Operating
     Partnership...............................................  $30,415
   Minority interest in the AIMCO Operating Partnership........       58
                                                                 -------
   Net income..................................................  $30,473
                                                                 =======
   Net loss attributable to common stockholders................  $  (441)
                                                                 =======
   Basic loss per share........................................  $ (0.01)
                                                                 =======
   Diluted loss per share......................................  $ (0.01)
                                                                 =======
</TABLE>
 
(CC)   Represents the net income attributable to holders of the Class B
       Preferred Stock, the Class C Preferred Stock, the Class D Preferred Stock
       the Class G Preferred Stock, the Class H Preferred Stock and the Class J
       Preferred Stock as if these stock offerings had occurred as of January 1,
       1997.
 
(DD)   Represents AIMCO's equity in earnings in the Unconsolidated Subsidiaries
       of $(1,180) plus the elimination of intercompany interest of $2,718. The
       combined Pro Forma Statement of Operations of the Unconsolidated
       Subsidiaries for the nine months ended September 30, 1998 is presented
       below, which represents the effects of the Ambassador Merger, the IFG
       Merger and the IFG Reorganization as if these transactions had occurred
       as of January 1, 1997.
 
                                       120
<PAGE>   127
 
                          UNCONSOLIDATED SUBSIDIARIES
 
          PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (PRE-MERGER)
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                               IFG
                                        HISTORICAL(I)   REORGANIZATION(II)    PRO FORMA
                                        -------------   ------------------    ---------
<S>                                     <C>             <C>                   <C>
Rental and other property revenues....    $  9,910           $     --         $  9,910
Property operating expense............      (5,139)                --           (5,139)
Owned property management expense.....        (345)                --             (345)
Depreciation expense..................      (1,026)                --           (1,026)
                                          --------           --------         --------
Income from property operations.......       3,400                 --            3,400
                                          --------           --------         --------
Management fees and other income......      57,665             56,211(iii)     113,876
Management and other expenses.........     (36,221)           (35,192)(iii)    (71,413)
Amortization..........................      (2,111)           (21,266)(iv)     (23,377)
                                          --------           --------         --------
Income from service company...........      19,333               (247)          19,086
General and administrative expense....          --            (13,800)(iii)    (13,800)
Interest expense......................      (6,931)            (2,861)(v)       (9,792)
Interest income.......................         617                 --              617
Minority interest in other
  partnerships........................        (526)                --             (526)
                                          --------           --------         --------
Income (loss) from operations.........      15,893            (16,908)          (1,015)
Income tax provision..................      (7,037)             6,810(vi)         (227)
                                          --------           --------         --------
Net income (loss).....................    $  8,856           $(10,098)        $ (1,242)
                                          ========           ========         ========
Income (loss) attributable to
  preferred stockholders..............    $  8,413           $ (9,593)        $ (1,180)
                                          ========           ========         ========
Income (loss) attributable to common
  stockholders........................    $    443           $   (505)        $    (62)
                                          ========           ========         ========
</TABLE>
 
- -------------------------
 
(i)    Represents the Unconsolidated Subsidiaries historical consolidated
       results of operations.
 
(ii)   Represents adjustments related to the IFG Reorganization, whereby,
       following the IFG Merger, AIMCO contributed or sold to the combined
       Unconsolidated Subsidiaries certain assets and liabilities of IFG,
       primarily related to the management operations owned by IFG. The
       adjustments reflect the related revenues and expenses primarily related
       to the management operations owned by IFG, with additional amortization
       recorded related to AIMCO's new basis resulting from the allocation of
       the purchase price of IFG.
 
(iii)  Represents the historical income and expenses associated with certain
       assets and liabilities of IFG that were contributed or sold to the
       Unconsolidated Subsidiaries, primarily related to the management
       operations of IFG.
 
                                       121
<PAGE>   128
 
(iv)   Represents the depreciation and amortization of certain management
       contracts and furniture, fixtures, and equipment contributed or sold to
       the Unconsolidated Subsidiaries, primarily related to the management
       operations of IFG, based on AIMCO's new basis resulting from the
       allocation of the purchase price of IFG.
 
(v)    Represents adjustment for interest expense related to a note payable to
       AIMCO.
 
(vi)   Represents the estimated Federal and state tax provisions, which are
       calculated on the pro forma operating results of the Unconsolidated
       Subsidiaries, excluding amortization of goodwill, which is not deductible
       for tax purposes.
 
                                       122
<PAGE>   129
 
               PRO FORMA FINANCIAL INFORMATION OF AIMCO (MERGER)
 
  Introduction
 
     On January 22, 1999, AIMCO and IPT signed the Merger Agreement whereby
AIMCO will acquire IPT for $13.25 in cash per IPT Common Share, $13.28 in AIMCO
Common Stock per IPT Common Share, or a combination of both, subject to certain
adjustments. AIMCO currently owns 51% of the outstanding IPT Common Shares.
 
     The following Pro Forma Consolidated Balance Sheet (Merger) of AIMCO as of
September 30, 1998 has been prepared as if each of the following transactions
had occurred as of September 30, 1998: (i) all of the transactions discussed in
the Pro Forma Financial Statements (Pre-Merger), appearing elsewhere herein; and
(ii) the Merger.
 
     The following Pro Forma Consolidated Statement of Operations (Merger) of
AIMCO for the year ended December 31, 1997 has been prepared as if each of the
following transactions had occurred as of January 1, 1997: (i) all of the
transactions discussed in the Pro Forma Financial Statements (Pre-Merger),
appearing elsewhere herein; and (ii) the Merger.
 
     The following Pro Forma Consolidated Statement of Operations (Merger) of
AIMCO for the nine months ended September 30, 1998 has been prepared as if each
of the following transactions had occurred as of January 1, 1997: (i) all of the
transactions discussed in the Pro Forma Financial Statements (Pre-Merger),
appearing elsewhere herein; and (ii) the Merger.
 
     The following Pro Forma Financial Information of AIMCO (Merger) is based,
in part, on: (i) the audited Consolidated Financial Statements of IFG for the
year ended December 31, 1997 and (ii) the unaudited Consolidated Financial
Statements of IFG for the nine months ended September 30, 1998. The following
Pro Forma Financial Information of AIMCO (Merger) is also based, in part, on the
Pro Forma Financial Information of AIMCO (Pre-Merger), included elsewhere
herein. Such pro forma information is based in part upon: (i) the audited
Consolidated Financial Statements of Ambassador for the year ended December 31,
1997; (ii) the audited Consolidated Financial Statements of AIMCO for the year
ended December 31, 1997; (iii) the audited Consolidated Financial Statements of
IFG for the year ended December 31, 1997; (iv) the audited Consolidated
Financial Statements of AMIT for the year ended December 31, 1997; (v) the
unaudited Consolidated Financial Statements of Ambassador for the four months
ended April 30, 1998; (vi) the unaudited Consolidated Financial Statements of
AIMCO for the six months ended June 30, 1998; (vii) the unaudited Consolidated
Financial Statements of IFG for the six months ended June 30, 1998; (viii) the
unaudited Consolidated Financial Statements of AMIT for the six months ended
June 30, 1998; and (ix) the historical financial statements for certain
properties and companies acquired by AIMCO filed in AIMCO Current Reports on
Form 8-K (and amendments thereto), dated April 16, 1997, May 5, 1997, June 3,
1997, September 19, 1997, October 15, 1997, December 1, 1997, November 2, 1998,
and December 21, 1998. The following Pro Forma Financial Information (Merger)
should be read in conjunction with such financial statements and notes thereto.
 
                                       123
<PAGE>   130
 
     The unaudited Pro Forma Financial Information of AIMCO (Merger) has been
prepared using the purchase method of accounting whereby the assets and
liabilities of IPT are adjusted to estimated fair market value, based upon
preliminary estimates, which are subject to change as additional information is
obtained. The allocations of purchase costs are subject to final determination
based upon estimates and other evaluations of fair market value. Therefore, the
allocations reflected in the following unaudited Pro Forma Financial Information
of AIMCO (Merger) may differ from the amounts ultimately determined.
 
     The unaudited Pro Forma Financial Information of AIMCO (Merger) has been
prepared under the assumption that AIMCO will issue stock as consideration for
the shares of IPT stock purchased.
 
     The following unaudited Pro Forma Financial Information of AIMCO (Merger)
is presented for informational purposes only and is not necessarily indicative
of the financial position or results of operations of AIMCO that would have
occurred if such transactions had been completed on the dates indicated, nor
does it purport to be indicative of future financial positions or results of
operations. In the opinion of AIMCO's management, all material adjustments
necessary to reflect the effects of these transactions have been made.
 
                                       124
<PAGE>   131
 
                                     AIMCO
 
            PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET (MERGER)
                            AS OF SEPTEMBER 30, 1998
                       (IN THOUSANDS, EXCEPT SHARE DATA)
 
<TABLE>
<CAPTION>
                                                       PRE-MERGER      IPT MERGER       AIMCO
                                                      PRO FORMA(A)   ADJUSTMENTS(B)   PRO FORMA
                                                      ------------   --------------   ----------
<S>                                                   <C>            <C>              <C>
Real estate.........................................   $2,617,305      $      --      $2,617,305
Property held for sale..............................       42,212             --          42,212
Investments in securities...........................           --             --              --
Investments in and notes receivable from
  unconsolidated subsidiaries.......................      200,779             --         200,779(D)
Investments in and notes receivable from
  unconsolidated partnerships.......................      874,060             --         874,060
Notes receivable....................................       20,916             --          20,916
Cash and cash equivalents...........................       98,848             --          98,848
Restricted cash.....................................       84,526             --          84,526
Accounts receivable.................................       15,892             --          15,892
Deferred financing costs............................       21,835             --          21,835
Goodwill............................................      340,693         46,429(C)      387,122
Property management contracts.......................       34,639             --          34,639
Other assets........................................       72,324             --          72,324
                                                       ----------      ---------      ----------
         Total Assets...............................   $4,424,029      $  46,429      $4,470,458
                                                       ==========      =========      ==========
Secured notes payable...............................   $  926,246      $      --      $  926,246
Secured tax-exempt bond financing...................      399,925             --         399,925
Secured short-term financing........................      339,164             --         339,164
Unsecured short-term financing......................       22,420             --          22,420
Accounts payable, accrued and other liabilities.....      310,651          3,350(C)      314,001
Security deposits and deferred income...............       13,171             --          13,171
                                                       ----------      ---------      ----------
                                                        2,011,577          3,350       2,014,927
Minority interest in other partnerships.............      157,066       (108,485)(C)      48,581
Minority interest in the AIMCO Operating
  Partnership.......................................      183,141             --         183,141
Company-obligated mandatorily redeemable convertible
  securities of a subsidiary trust..................      149,500             --         149,500
AIMCO Common Stock..................................          565             48(C)          613
Class B common stock, $.01 par value................            2             --               2
Class B Preferred Stock.............................       75,000             --          75,000
Class C Preferred Stock.............................       60,000             --          60,000
Class D Preferred Stock.............................      105,000             --         105,000
Class G Preferred Stock.............................      101,250             --         101,250
Class H Preferred Stock.............................       50,000             --          50,000
Class J Preferred Stock.............................      100,000             --         100,000
Additional paid in capital..........................    1,538,096        151,516(C)    1,689,612
Notes receivable on common stock purchases..........      (43,647)            --         (43,647)
Distributions in excess of earnings.................      (63,521)                       (63,521)
                                                       ----------      ---------      ----------
                                                        1,922,745        151,564       2,074,309
                                                       ----------      ---------      ----------
         Total Liabilities and Equity...............   $4,424,029      $  46,429      $4,470,458
                                                       ==========      =========      ==========
</TABLE>
 
                                       125
<PAGE>   132
 
(A)  Represents AIMCO's pro forma consolidated financial position as of
     September 30, 1998, which gives effect to (i) the purchase of nine
     properties for an aggregate purchase price of $62.5 million; (ii) the Class
     G Preferred Stock Offering; (iii) the Class H Preferred Stock Offering;
     (iv) the Class J Preferred Stock Offering; (v) the Probable Purchases; (vi)
     the IFG Merger; (vii) the AMIT Merger; (viii) the IPLP Exchange; and (ix)
     the IFG Reorganization. See "Pro Forma Financial Information of AIMCO
     (Pre-Merger)."
 
(B)  Represents the following adjustments occurring as a result of the Merger:
     (i) the issuance of 4,826,745 shares of AIMCO Common Stock, based on an
     AIMCO Exchange Value of $31.50 as consideration for all the IPT Common
     Shares not owned by AIMCO as of the date of the Merger; and (ii) the
     allocation of the purchase price of IPT based on the preliminary estimates
     of relative fair value of the assets and liabilities of IPT.
 
(C)  In connection with the Merger, AIMCO will issue 4,826,745 shares of AIMCO
     Common Stock based on an AIMCO Exchange Value of $31.50 as consideration
     for all the IPT Common Shares not owned by AIMCO. The total purchase price
     of IPT is $151,564.
 
     The purchase price was allocated to the various assets of IPT acquired in
     the Merger, as follows:
 
<TABLE>
   <S>                                                           <C>
   Purchase price..............................................  $ 151,564
   Historical basis of IPT assets..............................   (105,135)
                                                                 ---------
   Step-up to record the fair value of IPT's assets acquired...  $  46,429
                                                                 =========
</TABLE>
 
     This step-up was applied to IPT's assets as follows:
 
<TABLE>
   <S>                                                           <C>
   Goodwill....................................................  $  46,429
                                                                 =========
</TABLE>
 
     The fair value of IPT's assets, primarily real estate, was calculated based
     on estimated future cash flows of the underlying assets.
 
     Upon completion of the Merger, the minority interest in other partnerships
     of $108,485 will be eliminated.
 
(D)  Amount represents notes receivable from the Unconsolidated Subsidiaries of
     $95,000, advances to the Unconsolidated Subsidiaries of $42,792, and equity
     in the Unconsolidated Subsidiaries of $62,987. There were no pro forma
     adjustments to the balance sheet of the Unconsolidated Subsidiaries
     (presented below) as a result of the Merger.
 
                                       126
<PAGE>   133
 
                          UNCONSOLIDATED SUBSIDIARIES
 
            PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET (MERGER)
                            AS OF SEPTEMBER 30, 1998
                       (IN THOUSANDS, EXCEPT SHARE DATA)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                 AIMCO
                                                               PRO FORMA
                                                               ---------
<S>                                                            <C>
Real estate.................................................   $ 22,376
Cash and cash equivalents...................................     34,816
Restricted cash.............................................      6,859
Management contracts........................................    121,542
Accounts receivable.........................................     19,740
Deferred financing costs....................................      3,117
Goodwill....................................................     43,544
Other assets................................................     65,665
                                                               --------
                                                               $317,659
                                                               ========
 
LIABILITIES AND STOCKHOLDERS' EQUITY
 
Secured notes payable.......................................   $159,302
Accounts payable, accrued and other liabilities.............     60,167
Security deposits and deferred income.......................        334
Deferred tax liability......................................     36,652
                                                               --------
                                                                256,455
Common stock................................................      3,571
Preferred stock.............................................     62,987
Retained earnings...........................................     (3,844)
Notes receivable on common stock purchases..................     (1,510)
                                                               --------
                                                                 61,204
                                                               --------
                                                               $317,659
                                                               ========
</TABLE>
 
                                       127
<PAGE>   134
 
                                     AIMCO
 
            PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (MERGER)
                      FOR THE YEAR ENDED DECEMBER 31, 1997
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                            IPT          AIMCO
                                                         PRE-MERGER        MERGER         PRO
                                                        PRO FORMA(A)   ADJUSTMENTS(B)    FORMA
                                                        ------------   --------------   --------
<S>                                                     <C>            <C>              <C>
Rental and other property revenues....................   $ 431,256        $    --       $431,256
Property operating expenses...........................    (182,830)            --       (182,830)
Owned property management expense.....................     (11,831)            --        (11,831)
Depreciation..........................................     (95,851)            --        (95,851)
                                                         ---------        -------       --------
Income from property operations.......................     140,744             --        140,744
                                                         ---------        -------       --------
Management fees and other income......................      41,676             --         41,676
Management and other expenses.........................     (23,683)            --        (23,683)
Corporate overhead allocation.........................        (588)            --           (588)
Amortization..........................................     (30,023)        (2,321)(C)    (32,344)
                                                         ---------        -------       --------
Income from service company business..................     (12,618)        (2,321)       (14,939)
Minority interest in service company business.........         (10)            --            (10)
                                                         ---------        -------       --------
Company's share of income from service company
  business............................................     (12,628)        (2,321)       (14,949)
                                                         ---------        -------       --------
General and administrative expenses...................     (21,228)            --        (21,228)
Interest expense......................................     (99,501)            --        (99,501)(F)
Interest income.......................................      21,734             --         21,734
Minority interest in other partnerships...............     (16,489)         7,008(D)      (9,481)
Equity in income (losses) of unconsolidated
  partnerships........................................     (21,823)            --        (21,823)
Equity in earnings of unconsolidated subsidiaries.....       6,245             --          6,245(H)
                                                         ---------        -------       --------
Income (loss) before minority interest in the AIMCO
  Operating Partnership...............................      (2,946)         4,687          1,741
Minority interest in the AIMCO Operating
  Partnership.........................................       5,339           (909)(E)      4,430(E)
                                                         ---------        -------       --------
Net Income (Loss).....................................       2,393          3,778          6,171
Income (loss) allocable to preferred stockholders.....      41,174             --         41,174(G)
                                                         ---------        -------       --------
Income (loss) allocable to common stockholders........   $ (38,781)       $ 3,778       $(35,003)(F)
                                                         =========        =======       ========
Basic earnings (loss) per common share................   $   (0.70)                     $  (0.58)(F)
                                                         =========                      ========
Diluted earnings per common share.....................   $   (0.70)                     $  (0.58)(F)
                                                         =========                      ========
Weighted average shares outstanding...................      55,109                        59,936
                                                         =========                      ========
Weighted average shares and equivalents outstanding...      55,953                        60,780
                                                         =========                      ========
</TABLE>
 
                                       128
<PAGE>   135
 
(A)  Represents AIMCO's pro forma consolidated results of operations for the
     year ended December 31, 1997, which gives effect to: (i) the 1997 Stock
     Offerings; (ii) the 1997 Dispositions; (iii) the 1997 Acquisitions; (iv)
     the 1998 Stock Offerings; (v) the 1998 Acquisitions; (vi) the 1998
     Disposition; (vii) the NHP Real Estate Companies Purchase; (viii) the NHP
     Merger; (ix) the NHP Reorganization; (x) the Ambassador Merger; (xi) the
     IFG Merger; (xii) the AMIT Merger; (xiii) the IPLP Exchange; (xiv) the
     Probable Purchases; and (xv) the IFG Reorganization. See "Pro Forma
     Financial Information of AIMCO (Pre-Merger)."
 
(B)  Represents the following adjustments occurring as a result of the Merger:
     (i) the amortization of goodwill resulting from the Merger; and (ii) the
     elimination of the minority interest associated with IPT.
 
(C)  Represents amortization of goodwill using the straight-line method over 20
     years. The allocation of the purchase price of IPT is preliminary;
     therefore the amount and life of goodwill are subject to change as
     additional information is obtained and the purchase price allocation is
     finalized.
 
(D)  Represents the elimination of the minority interest in IPT resulting from
     the Merger.
 
(E)  Represents adjustments to Minority Interest in AIMCO Operating Partnership
     assuming the Merger had occurred as of January 1, 1997. On a pro forma
     basis, without giving effect to the Merger, as of December 31, 1997, the
     minority interest percentage is approximately 12.1%. On a pro forma basis,
     giving effect to the Merger, as of December 31, 1997, the minority interest
     percentage is approximately 11.2%.
 
(F)  Pursuant to the Merger Agreement, AIMCO may elect to issue stock, pay cash
     or use a combination of both, as consideration in the Merger. Set forth
     below is a summary of the pro forma net loss applicable to holders of AIMCO
     Common Stock and net loss per share (i) assuming that AIMCO only issues
     shares of AIMCO Common Stock as merger consideration; (ii) assuming that
     AIMCO elects to pay 50% of the merger consideration in cash and 50% of the
     merger consideration in shares of AIMCO Common Stock; and (iii) assuming
     AIMCO elects to pay only cash as merger consideration. The table below
     assumes an interest rate of LIBOR plus 1.75% on all additional borrowings.
 
<TABLE>
<CAPTION>
                                                                 50% STOCK
                                                               CONSIDERATION
                                                                  AND 50%
                                                   STOCK           CASH            CASH
                                               CONSIDERATION   CONSIDERATION   CONSIDERATION
                                               -------------   -------------   -------------
   <S>                                         <C>             <C>             <C>
   Increase in interest expense..............    $     --        $  5,633        $ 11,266
                                                 ========        ========        ========
   Income (loss) before minority interest in
     AIMCO Operating Partnership.............       1,741          (3,892)         (9,525)
   Minority interest in AIMCO Operating
     Partnership.............................       4,430           5,251           6,135
                                                 --------        --------        --------
   Net income (loss).........................       6,171           1,359          (3,390)
   Net loss attributable to common
     stockholders............................    $(35,003)       $(39,815)       $(44,564)
                                                 ========        ========        ========
   Basic net loss per share..................    $  (0.58)       $  (0.69)       $  (0.81)
                                                 ========        ========        ========
   Diluted net loss per share................    $  (0.58)       $  (0.69)       $  (0.81)
                                                 ========        ========        ========
</TABLE>
 
                                       129
<PAGE>   136
 
     Additionally, the following table presents the net impact to pro forma net
     loss applicable to holders of AIMCO Common Stock and net loss per common
     share assuming the interest rate increases by 0.25%
 
<TABLE>
<CAPTION>
                                                                 50% STOCK
                                                               CONSIDERATION
                                                                  AND 50%
                                                   STOCK           CASH            CASH
                                               CONSIDERATION   CONSIDERATION   CONSIDERATION
                                               -------------   -------------   -------------
   <S>                                         <C>             <C>             <C>
   Increase in interest expense..............    $    858        $  6,680        $ 12,502
                                                 ========        ========        ========
   Income (loss) before minority interest in
     AIMCO Operating Partnership.............         883          (4,939)        (10,761)
   Minority interest in AIMCO Operating
     Partnership.............................       4,527           5,373           6,284
                                                 --------        --------        --------
   Net income (loss).........................       5,410             434          (4,477)
   Net loss attributable to common
     stockholders............................    $(35,764)       $(40,740)       $(45,651)
                                                 ========        ========        ========
   Basic net loss per share..................    $  (0.60)       $  (0.71)       $  (0.83)
                                                 ========        ========        ========
   Diluted net loss per share................    $  (0.60)       $  (0.71)       $  (0.83)
                                                 ========        ========        ========
</TABLE>
 
(G)  Represents the net income attributable to holders of the Class B Preferred
     Stock, the Class C Preferred Stock, the Class D Preferred Stock, the Class
     G Preferred Stock, the Class H Preferred Stock and the Class J Preferred
     Stock as if these stock offerings had occurred on January 1, 1997.
 
(H)  Represents AIMCO's equity in losses of unconsolidated subsidiaries of
     $(2,139) offset by the elimination of intercompany interest expense of
     $8,384. There were no pro forma adjustments to the income statement of the
     Unconsolidated Subsidiaries (presented below) as a result of the Merger.
 
                                       130
<PAGE>   137
 
                          UNCONSOLIDATED SUBSIDIARIES
 
            PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (MERGER)
                      FOR THE YEAR ENDED DECEMBER 31, 1997
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                AIMCO
                                                              PRO FORMA
                                                              ---------
<S>                                                           <C>
Rental and other property revenues..........................  $ 12,565
Property operating expenses.................................    (6,886)
Owned property management expense...........................      (625)
Depreciation................................................    (1,805)
                                                              --------
Income from property operations.............................     3,249
                                                              --------
Management fees and other income............................   140,172
Management and other expenses...............................   (81,372)
Amortization................................................   (36,098)
                                                              --------
Income from service company business........................    22,702
General and administrative expenses.........................   (12,965)
Interest expense............................................   (15,732)
Interest income.............................................       853
Minority interest in other partnerships.....................      (621)
                                                              --------
Income from operations......................................    (2,514)
Income tax provision........................................       262
                                                              --------
Net loss....................................................  $ (2,252)
                                                              ========
Loss allocable to preferred stockholders....................  $ (2,139)
                                                              ========
Loss allocable to common stockholders.......................  $   (113)
                                                              ========
</TABLE>
 
                                       131
<PAGE>   138
 
                                     AIMCO
 
       PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (MERGER)
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1998
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                      PRE-MERGER      IPT MERGER       AIMCO
                                                     PRO FORMA(A)   ADJUSTMENTS(B)   PRO FORMA
                                                     ------------   --------------   ---------
<S>                                                  <C>            <C>              <C>
Rental and other property revenues.................   $ 337,307        $    --       $ 337,307
Property operating expenses........................    (131,851)            --        (131,851)
Owned property management expense..................      (8,933)            --          (8,933)
Depreciation.......................................     (78,170)            --         (78,170)
                                                      ---------        -------       ---------
Income from property operations....................     118,353             --         118,353
                                                      ---------        -------       ---------
Management fees and other income...................      28,912             --          28,912
Management and other expenses......................     (14,386)            --         (14,386)
Corporate overhead allocation......................        (196)            --            (196)
Amortization.......................................     (16,967)        (1,741)(C)     (18,708)
                                                      ---------        -------       ---------
Income from service company business...............      (2,637)        (1,741)         (4,378)
Minority interest in service company business......          --             --              --
                                                      ---------        -------       ---------
Company's share of income from service company
  business.........................................      (2,637)        (1,741)         (4,378)
                                                      ---------        -------       ---------
General and administrative expenses................      (9,207)            --          (9,207)
Interest expense...................................     (92,402)            --         (92,402)(F)
Interest income....................................      40,888             --          40,888
Minority interest in other partnerships............     (14,445)         6,393(D)       (8,052)
Equity in losses of unconsolidated partnerships....      (5,961)            --          (5,961)
Equity in earnings of unconsolidated
  subsidiaries.....................................       1,538             --           1,538(H)
Amortization of goodwill...........................      (5,071)            --          (5,071)
                                                      ---------        -------       ---------
Income before minority interest in the AIMCO
  Operating Partnership............................      31,056          4,652          35,708
Minority interest in the AIMCO Operating
  Partnership......................................         (17)          (522)(E)        (539)(E)
                                                      ---------        -------       ---------
Net income.........................................      31,039          4,130          35,169
Income attributable to preferred stockholders......      30,914             --          30,914(G)
                                                      ---------        -------       ---------
Income attributable to common stockholders.........   $     125        $ 4,130       $   4,255(F)
                                                      =========        =======       =========
Basic earnings per share...........................   $    0.00                      $    0.07(F)
                                                      =========                      =========
Diluted earnings per share.........................   $    0.00                      $    0.07(F)
                                                      =========                      =========
Weighted average shares outstanding................      56,323                         61,150
                                                      =========                      =========
Weighted average shares and equivalents
  outstanding......................................      56,988                         61,814
                                                      =========                      =========
</TABLE>
 
                                       132
<PAGE>   139
 
(A)  Represents AIMCO's pro forma consolidated results of operations for the
     nine months ended September 30, 1998, which gives effect to (i) the 1998
     Stock Offerings; (ii) the 1998 Acquisitions; (iii) the 1998 Disposition;
     (iv) the Ambassador Merger; (v) the IFG Merger; (vi) the AMIT Merger; (vii)
     the IPLP Exchange; (viii) the Probable Purchases; and (ix) the IFG
     Reorganization. See "Pro Forma Financial Information of AIMCO
     (Pre-Merger)."
 
(B)  Represents the following adjustments occurring as a result of the Merger:
     (i) the amortization of goodwill resulting from the Merger; and (ii) the
     elimination of the minority interest associated with IPT.
 
(C)  Represents amortization of goodwill using the straight-line method over 20
     years. The allocation of the purchase price of IPT is preliminary;
     therefore the amount and life of goodwill are subject to change as
     additional information is obtained and the purchase price allocation is
     finalized.
 
(D)  Represents the elimination of the minority interest in IPT resulting from
     the Merger.
 
(E)  Represents adjustments to Minority Interest in the AIMCO Operating
     Partnership assuming the Merger had occurred as of January 1, 1998. On a
     pro forma basis, without giving effect to the Merger, as of September 30,
     1998, the minority interest percentage is approximately 11.7%. On a pro
     forma basis, giving effect to the Merger, as of September 30, 1998, the
     minority interest percentage is approximately 10.9%.
 
(G)  Pursuant to the Merger Agreement, AIMCO may elect to issue stock, pay cash
     or use a combination of both as consideration in the Merger. Set forth
     below is a summary of the pro forma net income applicable to holders of
     AIMCO Common Stock and net income per share (i) assuming that AIMCO issues
     only shares of AIMCO Common Stock as merger consideration; (ii) assuming
     that AIMCO elects to pay 50% of the merger consideration in cash and 50% of
     the merger consideration in shares of AIMCO Common Stock; and (iii)
     assuming that AIMCO elects to pay only cash as merger consideration. The
     table below assumes an interest rate of LIBOR plus 1.75% on all additional
     borrowings.
 
<TABLE>
<CAPTION>
                                                                   50% STOCK
                                                                 CONSIDERATION
                                                                    AND 50%
                                                     STOCK           CASH            CASH
                                                 CONSIDERATION   CONSIDERATION   CONSIDERATION
                                                 -------------   -------------   -------------
   <S>                                           <C>             <C>             <C>
   Increase in interest expense................     $    --         $ 4,213         $ 8,426
                                                    =======         =======         =======
   Income before minority interest in AIMCO
     Operating Partnership.....................      35,708          31,495          27,282
   Minority interest in AIMCO Operating
     Partnership...............................        (539)            (65)            425
                                                    -------         -------         -------
   Net income..................................      35,169          31,430          27,707
   Net income attributable to common
     stockholders..............................     $ 4,255         $   516         $(3,207)
                                                    =======         =======         =======
   Basic net income per share..................     $  0.07         $  0.01         $ (0.06)
                                                    =======         =======         =======
   Diluted net income per share................     $  0.07         $  0.01         $ (0.06)
                                                    =======         =======         =======
</TABLE>
 
                                       133
<PAGE>   140
 
     Additionally, the following table presents the net impact to pro forma net
     income applicable to holders of AIMCO Common Stock and net income per
     common share assuming the interest rate increases by 0.25%.
 
<TABLE>
<CAPTION>
                                                               50% STOCK
                                                             CONSIDERATION
                                                                AND 50%
                                                 STOCK           CASH            CASH
                                             CONSIDERATION   CONSIDERATION   CONSIDERATION
                                             -------------   -------------   -------------
   <S>                                       <C>             <C>             <C>
   Increase in interest expense............     $   641         $ 4,996         $ 9,350
                                                =======         =======         =======
   Income before minority interest in the
     AIMCO Operating Partnership...........      35,067          30,712          26,358
   Minority interest in the AIMCO Operating
     Partnership...........................        (451)             23             533
                                                -------         -------         -------
   Net income..............................      34,616          30,735          26,891
   Net income attributable to common
     stockholders..........................     $ 3,702         $  (179)        $(4,023)
                                                =======         =======         =======
   Basic net income (loss) per share.......     $  0.06         $    --         $ (0.07)
                                                =======         =======         =======
   Diluted net income (loss) per share.....     $  0.06         $    --         $ (0.07)
                                                =======         =======         =======
</TABLE>
 
(H)  Represents the net income attributable to holders of the Class B Preferred
     Stock, the Class C Preferred Stock, the Class D Preferred Stock, the Class
     G Preferred Stock, the Class H Preferred Stock and the Class J Preferred
     Stock as if these stock offerings had occurred on January 1, 1997.
 
(I)  Represents AIMCO's equity in losses of unconsolidated subsidiaries of
     $(1,180) plus the elimination of intercompany interest of $2,718. There
     were no pro forma adjustments to the income statement of the Unconsolidated
     Subsidiaries (presented below) as a result of the Merger.
 
                                       134
<PAGE>   141
 
                          UNCONSOLIDATED SUBSIDIARIES
 
            PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (MERGER)
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                AIMCO
                                                              PRO FORMA
                                                              ---------
<S>                                                           <C>
Rental and other property revenues..........................  $  9,910
Property operating expenses.................................    (5,139)
Owned property management exp. .............................      (345)
Depreciation expense........................................    (1,026)
                                                              --------
Income from property operations.............................     3,400
                                                              --------
Management fees and other income............................   113,876
Management and other expenses...............................   (71,413)
Amortization................................................   (23,377)
                                                              --------
Income from service company.................................    19,086
                                                              --------
General and administrative expense..........................   (13,800)
Interest expense............................................    (9,792)
Interest income.............................................       617
Minority interest in other partnerships.....................      (526)
                                                              --------
Income from operations......................................    (1,015)
Income tax provision........................................      (227)
                                                              --------
Net income..................................................  $ (1,242)
                                                              ========
Income attributable to preferred stockholders...............  $ (1,180)
                                                              ========
Income attributable to common stockholders..................  $    (62)
                                                              ========
</TABLE>
 
                                       135
<PAGE>   142
 
                  UNAUDITED PRO FORMA FINANCIAL INFORMATION OF
                           INSIGNIA PROPERTIES TRUST
 
     The following unaudited pro forma condensed consolidated financial
statements have been prepared from, and should be read in conjunction with, the
historical financial statements and related notes thereto of IPT and AMIT
included elsewhere herein, and are not necessarily indicative of the financial
position or operating results that would have occurred had the transactions
described below been in effect on the dates indicated.
 
     The Unaudited Condensed Consolidated Balance Sheet as of September 30, 1998
gives effect to the AMIT Merger and the IPLP Exchange as if effected at
September 30, 1998.
 
     The Unaudited Pro Forma Condensed Consolidated Statement of Income for the
nine months ended September 30, 1998 and the year ended December 31, 1997 gives
effect to the AMIT Merger and the IPLP Exchange as if effected at January 1,
1997. If the Merger Agreement is terminated, the IPLP Exchange will be unwound
in an effort to put the parties in the same position they were in immediately
before the execution of the Original Merger Agreement. The Unaudited Pro Forma
Condensed Consolidated Statement of Income for the year ended December 31, 1997
also gives effect to (i) completion of the tender offers, commenced on August
28, 1997, by a wholly-owned subsidiary of IPLP, for limited partner interests in
IPT Partnerships, (ii) the completion of the tender offers, commenced on October
30, 1997, by a wholly-owned subsidiary of IPLP, for limited partner interests in
IPT Partnerships, (iii) the exercise of the Shelter IV Option (as defined) and
(iv) the acquisitions of additional limited partner in certain IPT Partnerships
from High River, as if effected at January 1, 1997.
 
                                       136
<PAGE>   143
 
                           INSIGNIA PROPERTIES TRUST
 
            UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                               SEPTEMBER 30, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                               IPT         PRO FORMA       PRO FORMA
                                          HISTORICAL(A)   ADJUSTMENTS    BALANCE SHEET
                                          -------------   -----------    -------------
<S>                                       <C>             <C>            <C>
ASSETS
  Cash..................................    $ 56,085       $     --        $ 56,085
  Distributions receivable from real
     estate limited partnerships........      11,135                         11,135
  Accounts receivable...................                                          0
  Mortgage notes receivable.............      20,916                         20,916
  Promissory notes receivable...........         508                            508
  Investments in real estate limited
     partnerships.......................     183,072                        183,072
  Investment in the AIMCO Operating
     Partnership........................                    386,161(a)      386,161
  Apartment property and other real
     estate.............................      44,488                         44,488
  Other assets..........................       5,907                          5,907
                                            --------       --------        --------
          Total assets..................    $322,111       $386,161        $708,272
                                            ========       ========        ========
LIABILITIES AND SHAREHOLDER'S EQUITY
  Liabilities:
  Accounts payable -- Due to IFG........    $     94       $     --        $     94
  Distributions payable -- IFG..........       1,590                          1,590
  Distributions payable.................       3,751                          3,751
  Accrued expenses......................       3,459                          3,459
  Non-recourse mortgage notes...........      29,002                         29,002
  Note payable..........................      30,000                         30,000
  IPLP Exchange and assumption
     payable............................                    386,161(a)      386,161
                                            --------       --------        --------
          Total liabilities.............      67,896        386,161         454,057
Minority interest in IPLP...............      58,849                         58,849
Shareholders' equity:
  Preferred shares, issued and
     outstanding, none..................
  Common shares, issued and outstanding
     23,446,538.........................         235                            235
  Additional paid-in capital............     198,025                        198,025
  Unearned compensation.................      (4,974)                        (4,974)
  Accumulated earnings in excess of
     distributions......................       2,080                          2,080
                                            --------       --------        --------
          Total shareholders' equity....     195,366             --         195,366
                                            --------       --------        --------
          Total liabilities and
             shareholders' equity.......    $322,111       $386,161        $708,272
                                            ========       ========        ========
</TABLE>
 
                                       137
<PAGE>   144
 
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
 
                           CONSOLIDATED BALANCE SHEET
 
     The Unaudited Pro Forma Condensed Consolidated Balance Sheet as of
September 30, 1998 gives effect to the merger with AMIT and the IPLP Exchange.
The AMIT Merger was consummated on September 17, 1998 and, accordingly, IPT's
historical balance sheet, as of September 30, 1998, gives effect to the AMIT
Merger (together with purchase accounting adjustments).
 
PRO FORMA ADJUSTMENTS
 
     (a) Represents adjustment to reflect IPLP Exchange.
 
                                       138
<PAGE>   145
 
                           INSIGNIA PROPERTIES TRUST
 
         UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF INCOME
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1998
             (IN THOUSANDS, EXCEPT PER SHARE AND SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                      IPT                   PRO FORMA
                                                  HISTORICAL     AMIT     BALANCE SHEET
                                                  -----------   ------    -------------
<S>                                               <C>           <C>       <C>
REVENUES
  Rental income.................................  $     5,624   $  560     $     6,184
  Equity earnings -- limited partnership
     interests..................................       12,026                   12,026
  Interest income...............................                 2,775           2,775
  Recovery of bad debts.........................                 1,418           1,418
  Other.........................................        1,942      688           2,630
                                                  -----------   ------     -----------
                                                       19,592    5,441          25,033
EXPENSES
  Property operating expenses...................        2,585                    2,585
  Administrative................................        1,763      675           2,438
  Apartment property interest...................        1,267                    1,267
  Apartment property depreciation...............          904                      904
  Amortization..................................          387       48             435
  Interest......................................          432                      432
                                                  -----------   ------     -----------
                                                        7,338      723           8,061
Operating income................................       12,254    4,718          16,972
Gain on sale of properties (net of minority
  interest).....................................        5,888                    5,888
                                                  -----------   ------     -----------
Income before minority interest and
  extraordinary item............................       18,142    4,718          22,860
Minority interest in IPLP and consolidated
  subsidiaries..................................       (6,622)                  (6,622)
                                                  -----------   ------     -----------
Income before extraordinary item................  $    11,520   $4,718     $    16,238
                                                  ===========   ======     ===========
Income before extraordinary item per common
  share.........................................  $      0.60              $      0.70
                                                  ===========              ===========
Weighted average number of IPT Common Shares and
  assumed conversions...........................   19,157,668               23,073,958
                                                  ===========              ===========
</TABLE>
 
                                       139
<PAGE>   146
 
                           INSIGNIA PROPERTIES TRUST
 
         UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF INCOME
                      FOR THE YEAR ENDED DECEMBER 31, 1997
             (IN THOUSANDS, EXCEPT PER SHARE AND SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                          IPT                 PRO FORMA       PRO FORMA
                                      HISTORICAL     AMIT    ADJUSTMENTS    BALANCE SHEET
                                      -----------   ------   -----------    -------------
<S>                                   <C>           <C>      <C>            <C>
REVENUES
  Rental income.....................  $     6,646   $  266                   $     6,912
  Equity earnings -- limited
     partnership interests..........        8,062                2,370(a)         10,701
                                                                   269(b)
  Interest income...................                 5,109                         5,109
  Recovery of bad debts.............                 1,744                         1,744
  Other.............................        2,118                                  2,118
                                      -----------   ------     -------       -----------
                                           16,826    7,119       2,639            26,584
EXPENSES
  Property operating expenses.......        3,258       56                         3,314
  Administrative....................        1,314    1,351                         2,665
  Apartment property interest.......        1,486                                  1,486
  Apartment property depreciation...          966                                    966
  Amortization......................          285       63         240(c)            588
  Income taxes......................                   180                           180
  Interest..........................           47                                     47
                                      -----------   ------     -------       -----------
                                            7,356    1,650         240             9,246
Operating income....................        9,470    5,469       2,399            17,338
Gain on sale of properties (net of
  minority interest)................        1,044       80                         1,124
                                      -----------   ------     -------       -----------
Income before minority interest and
  extraordinary item................       10,514    5,549       2,399            18,462
Minority interest in IPLP and
  consolidated subsidiaries.........       (4,440)                (382)(d)        (4,822)
                                      -----------   ------     -------       -----------
Income before extraordinary item....  $     6,074   $5,549     $ 2,017       $    13,640
                                      ===========   ======     =======       ===========
Income before extraordinary item per
  common share......................  $      0.40                            $      0.59
                                      ===========                            ===========
Weighted average number of IPT
  Common Shares and assumed
  conversions.......................   14,694,327                             23,046,558
                                      ===========                            ===========
</TABLE>
 
                                       140
<PAGE>   147
 
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                       CONSOLIDATED STATEMENTS OF INCOME
 
     The Unaudited Pro Forma Condensed Consolidated Statements of Income for the
nine months ended September 30, 1998 gives effect to the AMIT Merger and the
IPLP Exchange. If the Merger Agreement is terminated, the IPLP Exchange will be
unwound in an effort to put the parties in the same position they were in
immediately before the execution of the Original Merger Agreement. The Unaudited
Pro Forma Condensed Consolidated Statement of Income for the year ended December
31, 1997 gives effect to (i) the AMIT Merger and the IPLP Exchange, (ii) the
completion of the tender offers, commenced on August 28, 1997, by a wholly-owned
subsidiary of IPLP, for limited partner interests in IPT Partnerships, (iii) the
completion of the tender offers, commenced on October 30, 1997, by a
wholly-owned subsidiary of IPLP for limited partner interests in IPT
Partnerships, (iv) the exercise of the Shelter IV Option and (v) the
acquisitions of additional limited partner in certain IPT Partnerships from High
River, as if effected at January 1, 1997.
 
PRO FORMA ADJUSTMENTS
 
     (a) Represents additional equity earnings from acquisition of investments
in IPT Partnerships in 1997 as if such investments were acquired at the
beginning of the period.
 
     (b) Represents additional equity earnings from Shelter Properties IV
Limited Partnership as a result of the exercise of the Shelter IV Option.
 
     (c) Represents adjustment for amortization of estimated formation costs of
$2,200,000 which are being amortized over a five year period.
 
     (d) Represents adjusted minority interest to reflect the aforementioned
events. Minority interest in IPLP is reflected at 29.7% and minority interest in
National Property Investors 4 is reflected at 37.4%.
 
                                       141
<PAGE>   148
 
                               BUSINESS OF AIMCO
 
     AIMCO is engaged in the ownership, acquisition, development, expansion and
management of multi-family apartment properties. As of December 31, 1998, AIMCO
owned or managed 379,363 apartment units in 2,147 properties located in 49
states, the District of Columbia and Puerto Rico. Based on apartment unit data
compiled as of January 1, 1998 by the National Multi Housing Council, AIMCO
believes that, as of December 31, 1998, it was one of the largest owners and
managers of multifamily apartment properties in the United States. The "AIMCO
Properties" include:
 
- - "Owned Properties" -- properties that AIMCO owns or controls;
 
- - "Equity Properties" -- properties in which AIMCO owns a non-controlling
  (usually less than 30%) interest; and
 
- - "Managed Properties" -- properties that AIMCO manages for third parties and
  affiliates.
 
     As of December 31, 1998, AIMCO had 243 Owned Properties with 63,268 units,
901 Equity Properties with 170,061 units and 1,003 Managed Properties with
146,034 units. AIMCO manages all of the Owned Properties, a majority of the
Equity Properties and all of the Managed Properties.
 
     AIMCO's principal executive offices are located at 1873 South Bellaire
Street, 17th Floor, Denver, Colorado 80222, and AIMCO's telephone number is
(303) 757-8101.
 
RECENT DEVELOPMENTS
 
     The following summary of recent developments of AIMCO's business should be
read in conjunction with the annual, quarterly and special reports, information
statements, and other information that AIMCO files with the SEC and which have
been incorporated by reference in this Information Statement/Prospectus. See
"Where You Can Find More Information."
 
  Payment of Special Dividend on Class E Preferred Stock
 
     On January 15, 1999, AIMCO paid a one-time $44.7 million special dividend
to holders of record of the Class E Preferred Stock on December 31, 1998. As of
the close of business on January 15, 1999, each share of Class E Preferred Stock
was automatically converted into one share of AIMCO Common Stock.
 
  Issuance of Stock
 
     In November 1998, AIMCO issued 1,000,000 shares of Class J Preferred Stock
in a private placement for $100 million. In addition, AIMCO issued 250,000
shares of Class J Preferred Stock to the AIMCO Operating Partnership in exchange
for a $25 million note. The holders of Class J Preferred Stock shall be entitled
to receive, when and as declared by the Board of Directors of AIMCO, dividends
equal to (i) 7% per annum of the per share liquidation preference for the period
beginning on and including the issue date and lasting until November 15, 1998;
(ii) 8% per annum of the per share liquidation preference for the period
beginning November 15, 1999 and lasting until November 15, 2000; (iii) 9%
 
                                       142
<PAGE>   149
 
per annum of the per share liquidation preference thereafter. Such dividends
shall be cumulative from the issue date, whether or not in any dividend period
or periods such dividends shall be declared or there shall be funds of AIMCO
legally available for the payment of such dividends. AIMCO may convert any or
all of the Class J Preferred Stock into AIMCO Common Stock at a conversion price
of $40 (equivalent to a conversion rate of 2.5 shares of AIMCO Common Stock for
each share of Class J Preferred Stock) (a) after November 6, 2002, of the market
price of the AIMCO Common Stock in the five most recent trading days is equal to
or greater than $40 or; (b) at any time on or prior to November 6, 2002, if the
internal rate of return exceeds 12.5%.
 
  Purchase of Properties
 
     In the fourth quarter of 30, 1998, AIMCO purchased 11 multifamily property
with a total of 2,434 units for total consideration of $146.2 million,
consisting of $35 million in cash and assumed $92.4 in mortgage debt and issued
both preferred and common OP Units valued at 18.8 million.
 
  Moody's Revision of AIMCO's Outlook of Ratings to Negative
 
     On October 1, 1998, Moody's Investors Service ("Moody's") revised its
outlook for the ratings of AIMCO from stable to negative to reflect its concerns
surrounding AIMCO's ability to successfully implement its financial strategy
while maintaining a prudent capital structure as a result of the more difficult
general capital market conditions. Moody's noted that AIMCO's access to the
public markets may prove challenging in light of the volatility in both the
equity and capital markets for REITs. Moody's assigned a "ba3" rating to the
Class I Preferred Stock proposed to be issued by AIMCO, and confirmed its
previous ratings related to AIMCO's preferred stock and debt in its shelf
registration statement. Moody's indicated that its rating action continues to
reflect AIMCO's increasing leveraged profile, including high levels of secured
debt and preferred stock, limited financial flexibility and integration of risks
resulting from the merger with IFG. Moody's also noted AIMCO's level of
encumbered properties and material investments in loans to highly leveraged
partnerships in which AIMCO owns a general partnership interest. At the same
time, each of Moody's, Standard & Poor's and Duff & Phelps confirmed its
existing rating on AIMCO's existing preferred stock and senior debt.
 
  Increased Interests in Partnerships
 
     For properties where AIMCO owns a general partnership interest in the
property-owning partnership, AIMCO may seek to acquire, subject to its fiduciary
duties, the outstanding limited partnership interests for cash or, in some
cases, in exchange for common units in its operating partnership. The AIMCO
Operating Partnership intends to offer to purchase limited partnership interests
in syndicated real estate limited partnerships in which AIMCO holds partnership
interests. The AIMCO Operating Partnership, subject to applicable law, plans to
offer to purchase certain of such limited partnership interests in exchange for
(i) equity securities of the AIMCO Operating Partnership, (ii) cash or (iii) a
combination of such equity securities and cash. Such offers are expected to
include terms that allow limited partners to continue to hold their limited
partnership interests.
 
                                       143
<PAGE>   150
 
  Redevelopment of AIMCO Properties
 
     Recently, AIMCO acquired and redeveloped Sun Katcher, a 360-unit property
in Jacksonville, Florida, at a cost of $8.9 million, including $4.9 million in
redevelopment costs. AIMCO also recently commenced the renovation and upgrading
of Bay West, a 376-unit property in Tampa, Florida, for a projected cost of $4.8
million, to reposition the property in the marketplace. In addition, AIMCO is
undertaking a major renovation of the Morton Towers apartments, a 1,277 unit
property located in Miami Beach, Florida, at an estimated cost of $35 million.
AIMCO generally finances redevelopment initially with borrowings under its
credit facilities and subsequently arranges permanent financing.
 
  Expansion of AIMCO Properties
 
     Recently AIMCO constructed 92 additional units at Fairways, in Phoenix,
Arizona, at a cost of $6.5 million. AIMCO is planning the construction of 42
additional units at Township, in Littleton, Colorado, for a projected cost of
more than $3 million. AIMCO generally finances expansions initially with
borrowings from credit facilities and subsequently arranges permanent financing.
 
  Class I High Performance Units
 
     On January 21, 1998, the AIMCO Operating Partnership sold an aggregate of
15,000 OP units designated as Class I High Performance Units (the "High
Performance Units") to a joint venture formed by fourteen of AIMCO's officers,
and to three of AIMCO's non-employee directors for an aggregate purchase price
of $2,070,000, of which $1,980,300 was paid by the joint venture and an
aggregate of $89,700 was paid by three non-employee directors. The purchase
price of the High Performance Units was determined by the AIMCO Board of
Directors, based upon the advice of an independent valuation expert, and
represented the fair market value of the High Performance Units. The sale of the
High Performance Units was ratified by AIMCO's stockholders on May 8, 1998.
 
     Holders of High Performance Units have no rights to receive distributions
or allocations of income or loss, or to redeem their High Performance Units
prior to the date (the "Valuation Date") that is the earlier of (i) January 1,
2001, or (ii) the date on which a change of control occurs. If, on the Valuation
Date, the cumulative Total Return (as defined below) of the AIMCO Common Stock
from January 1, 1998 to the Valuation Date (the "Measurement Period") exceeds
115% of the cumulative Total Return of a peer group index over the same period,
and is at least the equivalent of a 30% cumulative Total Return over three years
(the "Minimum Return"), then, on and after the Valuation Date, holders of the
High Performance Units will be entitled to receive distributions and allocations
of income and loss from the AIMCO Operating Partnership in the same amounts and
at the same times (subject to certain exceptions upon liquidation of the AIMCO
Operating Partnership) as would holders of a number of OP Units equal to the
quotient obtained by dividing (i) the product of (A) 15% of the amount by which
the cumulative Total Return of the AIMCO Common Stock over the Measurement
Period exceeds the greater of 115% of the peer group index or the Minimum
Return, multiplied by (B) the weighted average market value of AIMCO's equity
capitalization (including common stock and OP Units) by (ii) the market value of
one share of AIMCO Common Stock on the Valuation Date. If, on the Valuation
Date, the cumulative Total Return of
 
                                       144
<PAGE>   151
 
the AIMCO Common Stock does not satisfy these criteria, then, on and after the
Valuation Date, holders of the High Performance Units will be entitled to
receive distributions and allocations of income and loss from the AIMCO
Operating Partnership in the same amounts and at the same times (subject to
certain exceptions upon a liquidation of the AIMCO Operating Partnership) as
would holders of 150 OP Units. For purposes of determining the market value of
AIMCO Common Stock or OP Units as of any date, the average closing price of the
AIMCO Common Stock for the 20 trading days immediately preceding such date is
used. It is expected that the Morgan Stanley REIT Index, a
capitalization-weighted index with dividends reinvested of the most actively
traded real REITs, will be used as the peer group index for purposes of the High
Performance Units.
 
     "Total Return" means, for any security and for any period, the cumulative
total return for such security over such period, as measured by (i) the sum of
(a) the cumulative amount of dividends paid in respect of such security for such
period (assuming that all cash dividends are reinvested in such security as of
the payment date for such dividend based on the security price on the dividend
payment date), and (b) an amount equal to (x) the security price at the end of
such period, minus (y) the security price at the beginning of such period,
divided by (ii) the security price at the beginning of the measurement period;
provided, however, that if the foregoing calculation results in a negative
number, the "Total Return" shall be equal to zero.
 
     Upon the occurrence of a change of control, any holder of High Performance
Units may, subject to certain restrictions, require the AIMCO Operating
Partnership to redeem all or a portion of the High Performance Units held by
such party in exchange for a cash payment per unit equal to the market value of
a share of AIMCO Common Stock at the time of redemption. However, in the event
that any High Performance Units are tendered for redemption, the AIMCO Operating
Partnership's obligation to pay the redemption price is subject to the prior
right of AIMCO to acquire such High Performance Units in exchange for an equal
number of shares of AIMCO Common Stock (subject to certain adjustments).
 
ACCOUNTING POLICIES AND DEFINITIONS
 
     You are urged to consider the following accounting policies and definitions
used by AIMCO when reviewing AIMCO's financial data in this
Information/Statement Prospectus and the documents incorporated herein by
reference:
 
  Funds from Operations
 
     The Board of Governors of NAREIT defines "FFO" as net income (loss),
computed in accordance with GAAP, excluding gains and losses from debt
restructuring and sales of property, plus real estate related depreciation and
amortization (excluding amortization of financing costs), and after adjustments
for unconsolidated partnerships and joint ventures. AIMCO calculates FFO in a
manner consistent with the NAREIT definition, which includes adjustments for
minority interest in the AIMCO Operating Partnership, plus amortization of
goodwill and the non-cash deferred portion of the income tax provision for
unconsolidated subsidiaries less the payment of dividends on perpetual preferred
stock. AIMCO's management believes that presentation of FFO provides investors
with industry accepted measurements which help facilitate understanding of
AIMCO's ability to meet
 
                                       145
<PAGE>   152
 
required dividend payments, capital expenditures, and principal payments on its
debt. There can be no assurance that AIMCO's basis of computing FFO is
comparable with that of other REITs.
 
  Capital Replacements
 
     AIMCO capitalizes spending for items which generally cost more than $250
and have a useful life of more than one year, such as carpet replacement, new
appliances, new roofs or parking lot repaving. Capitalized spending which
maintains a property is termed a "Capital Replacement." In the experience of
AIMCO's management, this spending is better considered a recurring cost of
preserving an asset rather than an additional investment.
 
  Consolidation
 
     For financial reporting purposes, AIMCO consolidates the results of those
corporations in which it owns a majority of the outstanding voting stock, and
those limited partnerships and limited liability companies in which it owns both
a general partnership or managing member interest and controls investment
decisions with respect to the underlying assets. AIMCO's policy is generally to
hold Class C properties and affordable properties (substantially all of which
are Class C properties) in unconsolidated partnerships. AIMCO accounts for these
properties on the equity method in accordance with GAAP.
 
RECENT CONTRACTS
 
     On January 31, 1998, AIMCO entered into a contribution agreement with CK
Services, Inc. ("CK") and the stockholders of CK (the "CK Contribution
Agreement") to cause certain assets of AIMCO to be contributed to CK and to
distribute all outstanding stock of CK to the stockholders of AIMCO. CK is a
corporation wholly-owned by Terry Considine, AIMCO's Chairman and Chief
Executive Officer, and by Peter Kompaniez, AIMCO's President and Vice Chairman.
As a result, when the stock of CK is transferred to AIMCO, such stockholders
will receive payment for the stock. Such stock will be priced at fair market
value, which if difficult to ascertain, will favor AIMCO.
 
     It is AIMCO's intent to use CK as a vehicle for holding property and
performing services that AIMCO is limited or prohibited from holding or
providing due to AIMCO's election to be taxed as a REIT. AIMCO is finalizing
which assets will be contributed to CK. Any transfer of assets or services to CK
will be approved by the independent members of the Board of Directors of AIMCO
and at market rates, which if difficult to ascertain, will favor AIMCO.
 
     Pursuant to the CK Contribution Agreement, AIMCO will contribute certain
assets to CK and, in return, the stock of CK will be contributed to AIMCO or a
subsidiary of AIMCO. Following the contribution of CK stock, AIMCO will agree to
contribute additional assets to CK with the intent of creating a stand-alone
entity meeting the requirements for listing on the NYSE or National Association
of Securities Dealers Automated Quotation System ("NASDAQ") National Market, and
if AIMCO is
 
                                       146
<PAGE>   153
 
successful in listing the CK stock on the NYSE or NASDAQ National Market, the
stock of CK will be distributed to the stockholders of AIMCO. If AIMCO is unable
to list the CK stock on the NYSE or NASDAQ National Market, CK will remain a
direct or indirect subsidiary of AIMCO, and AIMCO will pay to the former
stockholders of CK an amount necessary to compensate the former CK stockholders
for the value of such stock on January 31, 1998. AIMCO cannot predict whether or
when any spinoff to AIMCO stockholders will occur. Consummation of the
transaction is subject to the approval of the independent members of the Board
of Directors of AIMCO.
 
YEAR 2000 COMPLIANCE
 
  General Description of the Year 2000 Issue and the Nature and Effects of the
  Year 2000 on Information Technology (IT) and Non-IT Systems.
 
     The Year 2000 issue is the result of computer programs being written using
two digits rather than four to define the applicable year. Any of AIMCO's
computer programs or hardware that have date-sensitive software or embedded
chips may recognize a date using "00" as the year 1900 rather than the year
2000. This could result in a system failure or miscalculations causing
disruptions of operations, including, among other things, a temporary inability
to process transactions, send invoices, or engage in similar normal business
activities.
 
     Over the past twenty-two months, AIMCO determined that it will be required
to modify or replace significant portions of its software and certain hardware
so that those systems will properly utilize dates beyond December 31, 1999.
AIMCO believes that with modifications or replacements of existing software and
certain hardware, the Year 2000 issue can be mitigated. However, if such
modifications and replacements are not made, or are not completed timely, the
Year 2000 issue could have a material impact on the operations of AIMCO.
 
     AIMCO's plan to resolve the Year 2000 issue involves the following four
phases: assessment, remediation, testing, and implementation. As of September
30, 1998, AIMCO had fully completed its assessment of all information systems
that could be significantly affected by the Year 2000, and has begun the
remediation, testing and implementation phase on both hardware and software
systems. Assessments are continuing in regards to embedded system. The status of
each is detailed below.
 
  Status of Progress in Becoming Year 2000 Compliant, Including Timetable for
  Completion of Each Remaining Phase
 
     During 1997, AIMCO identified all of the computer systems at risk and
formulated a plan to repair or replace each of the affected systems. AIMCO has
replaced its mainframe system, including the creation of new applications, at a
total cost of approximately $1.1 million. In August 1998, the Year-2000
compliant system became fully functional. In addition to the mainframe, PC-based
network servers and routers and desktop PCs were analyzed for compliance. AIMCO
has begun to replace each of the non-compliant network connections and desktop
PCs and, as of September 30, 1998, is approximately 85% complete with this
effort. The total cost to replace the PC-based network servers and routers and
desktop PCs is expected to be approximately $1.2 million, of which $886,000 has
been incurred as of September 30, 1998. The remaining network connections and
 
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<PAGE>   154
 
desktop PCs are expected to be upgraded to Year-2000 compliant systems by March
31, 1999.
 
     As for software, AIMCO utilizes a combination of off-the-shelf commercially
available software programs as well as custom-written programs that are designed
to fit specific needs. Both of these types of programs were studied and
implementation plans written and executed with the intent of repairing or
replacing any non-compliant software programs.
 
     In 1997, when AIMCO merged with NHP, the core financial system used by NHP
was Year-2000 compliant. During 1998, AIMCO integrated all of its core financial
systems to this compliant system for general ledger and financial reporting
purposes. In 1997, AIMCO determined that the software used for property
management and rent collection was not Year-2000 compliant. During 1998, AIMCO
has implemented a Year-2000 compliant system at each of its 926 property sites,
including owned and managed, at a cost of $700,000. Since then, AIMCO has
acquired 75 properties and has also merged with IFG. IFG owned or managed 140
properties. As properties are acquired, AIMCO converts the existing property
management and rent collection systems to AIMCO's Year-2000 compliant systems.
The estimated additional costs to convert such systems at all recently acquired
properties, including those acquired in the IFG Merger, is $200,000, and the
implementation and testing process is expected to be completed by March 31,
1999.
 
     The final software area is the office software and server operating
systems. AIMCO has upgraded all non-compliant office software systems on each PC
and has upgraded 93% of the server operating systems. The remaining server
operating systems are planned to be upgraded to be Year-2000 compliant in early
1999.
 
     The final software area is the office software and server operating
systems. AIMCO has operating equipment, primarily at the property sites, which
needed to be evaluated for Year-2000 compliance. AIMCO began taking a census and
inventorying embedded systems issues in September 1997. At that time, management
chose to focus its attention mainly upon security systems, elevators,
heating-ventilation-air-conditioning systems (HVAC), telephone systems and
switches, and sprinkler systems. While this area is the most difficult to fully
research adequately, management has not yet found any major non-compliance
issues that put AIMCO at risk financially or operationally. AIMCO intends to
have a third-party conduct an audit of these systems and report their findings
in early 1999.
 
     Any of the above operating equipment that has been found to be
non-compliant to date has been replaced or repaired. To date, these have
consisted only of security systems and phone systems. As of September 30, 1998,
AIMCO had evaluated approximately 86% of the operating equipment for Year-2000
compliance. The total cost incurred as of September 30, 1998 to replace or
repair the operating equipment was approximately $70,000. AIMCO estimates the
cost to replace or repair any remaining operating equipment is approximately
$325,000, and AIMCO expects to be completed by April 30, 1999. AIMCO continues
to have "awareness campaigns" throughout the organization designed to raise
awareness and report any possible compliance issues regarding operating
equipment within its enterprise. AIMCO has upgraded all non-compliant office
software systems on each PC and has upgraded 93% of the server operating
systems.
 
                                       148
<PAGE>   155
 
  Nature and Level of Importance of Third Parties and their Exposure to the Year
2000
 
     AIMCO is currently actively conducting surveys of its banking and vendor
relationships to assess risks regarding their Year-2000 readiness. AIMCO has
banking relationships with three major financial institutions, all of which have
indicated their compliance efforts will be complete before May 1999. AIMCO has
updated data transmission standards with two of the three financial
institutions. AIMCO's contingency plan in this regard is to move accounts from
any institution that cannot be certified Year 2000 compliant by June 1, 1999.
 
     AIMCO does not rely heavily on any single vendor for goods and services and
does not have significant suppliers and subcontractors who share information
systems with AIMCO (external agents). As of September 30, 1998, AIMCO is not
aware of any external agent with a Year 2000 issue that would materially impact
AIMCO's results of operations, liquidity, or capital resources. However, AIMCO
has no means of ensuring that external agents will be Year 2000 ready.
Management does not believe that the inability of external agents to complete
their Year 2000 resolution process in a timely manner will have a material
impact on the financial position or results of operations of AIMCO. However, the
effect of non-compliance by external agents is not readily determinable.
 
  Costs to Address Year 2000
 
     The total cost of the Year 2000 project is estimated at $3.4 million and is
being funded through operating cash flows. As of September 30, 1998, AIMCO has
incurred approximately $2.8 million ($396,000 expensed and $2,380,000
capitalized for new systems and equipment), related to all phases of the Year
2000 project. Of the total remaining project costs, approximately $400,000 is
attributable to the purchase of new software and operating equipment, which will
be capitalized. The remaining $200,000 relates to repair of hardware and
software and will be expensed as incurred.
 
  Risks Associated with the Year 2000
 
     AIMCO's management believes it has an effective program in place to resolve
the Year 2000 issue in a timely manner. As noted above, AIMCO has not yet
completed all necessary phases of the Year 2000 program. In the event that AIMCO
does not complete any additional phases, certain worst case scenarios could
occur. The worst case scenarios include elevators, security and HVAC systems
that read incorrect dates and operate with incorrect schedules (e.g., elevators
will operate on Monday as if it were Sunday). Although such a change is annoying
to residents, it is not business critical. In addition, disruptions in the
economy generally resulting from Year 2000 issues could also materially
adversely affect AIMCO. AIMCO could be subject to litigation for computer
systems failure, for example, equipment shutdown or failure to properly date
business records. The amount of potential liability and lost revenue cannot be
reasonably estimated at this time.
 
  Contingency Plans Associated with the Year 2000
 
     AIMCO has contingency plans for certain critical applications and is
working on such plans for others. These contingency plans involve, among other
actions, manual workarounds and selecting new relationships for such activities
as banking relationships and elevator operating systems.
                                       149
<PAGE>   156
 
CONFLICT OF INTEREST POLICIES
 
     AIMCO has adopted certain policies designed to minimize or eliminate
conflicts of interests between AIMCO and its executive officers and directors.
Without the approval of a majority of the disinterested directors, AIMCO will
not (i) acquire from or sell to any director, officer or employee of AIMCO or
any entity in which a director, officer or employee of AIMCO owns more than a 1%
interest, or acquire from or sell to any affiliate of any of the foregoing, any
assets or other property of AIMCO, (ii) make any loan to or borrow from any of
the foregoing persons, or (iii) engage in any material transaction with the
foregoing. In addition, AIMCO has entered into employment agreements with
Messrs. Considine, Kompaniez and Ira which include provisions intended to
eliminate or minimize potential conflicts of interest, and which provide that
those persons will be prohibited from engaging directly or indirectly in the
acquisition, development, operation or management of other multifamily apartment
properties outside of AIMCO, except with respect to certain investments
currently held by such persons, as to which investments those persons have
committed to an orderly liquidation. There can be no assurance, however, that
these policies always will be successful in eliminating the influence of such
conflicts, and if they are not successful, decisions could be made that might
not reflect the interests of AIMCO's stockholders as a whole.
 
POLICIES WITH RESPECT TO OTHER ACTIVITIES
 
     AIMCO has authority to, has and may in the future, offer shares of its
stock or other securities and to repurchase or otherwise reacquire its shares or
any other securities. From its inception, AIMCO has made loans aggregating $7.6
million to certain entities owning properties subsequently acquired by AIMCO. No
balances remain outstanding on such loans. In the same period, AIMCO has made
loans aggregating $77.5 million to its officers for the purchase of AIMCO Common
Stock and $7.6 million to its officers and other entities to acquire interests
in subsidiaries of AIMCO. The outstanding balances on such loans as of September
30, 1998 were $43.6 million and $5.6 million, respectively. Messrs. Considine
and Kompaniez have repaid in part, using $2 million in proceeds distributed to
them from the sale of NHP common stock by AIMCO/NHP Holdings, Inc. ("ANHI") to
AIMCO, outstanding promissory notes payable by them to ANHI in an aggregate
amount of $3.2 million, which loan was made to them by ANHI to acquire their
interest in ANHI. In addition, AIMCO from time to time advances amounts for
relocation and other expenses. AIMCO has not engaged in underwriting securities
of other issuers. AIMCO intends to make investments in such a way that it will
not be treated as an investment company under the Investment Company Act of
1940, as amended.
 
     AIMCO may invest in the securities of other issuers engaged in the
ownership, acquisition or management of multifamily apartment properties for the
purpose of exercising control.
 
     At all times, AIMCO intends to make investments in such a manner as to be
consistent with the requirements of the Code for AIMCO to qualify as a REIT
unless, because of changing circumstances or changes in the Code (or in Treasury
Regulations), the Board of Directors of AIMCO determines that it is no longer in
the best interest of AIMCO to qualify as a REIT.
 
                                       150
<PAGE>   157
 
     AIMCO, as a REIT, is required to distribute annually to holders of AIMCO
Common Stock at least 95% of its "real estate investment trust taxable income,"
which, as defined by the Code and the Treasury Regulations, is generally
equivalent to net taxable ordinary income. AIMCO measures its economic
profitability and intends to pay regular dividends to its stockholders based on
earnings during the relevant period. However, the future payment of dividends by
AIMCO will be at the discretion of the Board of Directors of AIMCO and will
depend on numerous factors, including AIMCO's financial condition, its capital
requirements, the annual distribution requirements under the provisions of the
Code applicable to REITs and such other factors as the Board of Directors of
AIMCO deems relevant.
 
                                       151
<PAGE>   158
 
                            CAPITALIZATION OF AIMCO
 
The following table sets forth the capitalization of AIMCO at September 30,
1998: (i) on a historical basis; and (ii) on a pro forma basis to reflect the
Merger, applying the assumptions described above with respect to the Pro Forma
Financial Information of AIMCO (Merger). The information set forth in the
following table should be read in connection with the financial statements and
notes thereto incorporated by reference and the pro forma financial information
and notes thereto included herein. See "Pro Forma Financial Information of AIMCO
(Merger)."
 
<TABLE>
<CAPTION>
                                                              HISTORICAL    PRO FORMA(1)
                                                              ----------    ------------
                                                                (DOLLARS IN THOUSANDS)
<S>                                                           <C>           <C>
Unsecured credit facility...................................  $   50,800     $   22,420
Secured short-term financing................................      50,000        339,164
Long-term debt:
  Secured tax-exempt bond financing.........................     399,925        399,925
  Secured notes payable.....................................     774,676        926,246
Minority interests in other partnerships....................      42,086         48,581
Minority interests in AIMCO Operating Partnership...........     137,965        183,141
Company-obligated mandatorily redeemable convertible
  securities of a subsidiary trust..........................          --        149,500
AIMCO Common Stock, 484,027,500 authorized, 47,987,092
  issued and outstanding on a historical basis, and
  60,873,730 issued and outstanding on a pro forma
  basis(3)..................................................         481            613
Class B Common Stock, $.01 par value per share, 262,500
  authorized, 162,500 issued and outstanding(4).............           2              2
Class B Convertible Preferred Stock, 750,000 authorized,
  issued and outstanding(2).................................      75,000         75,000
Class C Preferred Stock, 2,760,000 authorized, 2,400,000
  issued and outstanding....................................      60,000         60,000
Class D Preferred Stock, 4,600,000 authorized, 4,200,000
  issued and outstanding....................................     105,000        105,000
Class G Preferred Stock, 4,050,000 authorized, none issued
  on a historical basis, 4,050,000 issued and outstanding on
  a pro forma basis.........................................     101,250        101,250
Class H Preferred Stock, 2,300,000 authorized, none issued
  on a historical basis, and 2,000,000 issued and
  outstanding on a pro forma basis..........................      50,000         50,000
Class J Convertible Preferred Stock, 2,000,000 authorized,
  none issued on a historical basis, and 1,250,000 issued
  and outstanding on a pro forma basis......................          --        100,000
Additional paid-in capital..................................   1,236,962      1,689,612
Notes due on common stock purchases.........................     (43,647)       (43,647)
Distributions in excess of earnings.........................     (63,521)       (63,521)
                                                              ----------     ----------
Total stockholders' equity..................................   1,521,527      2,074,309
                                                              ----------     ----------
         Total Capitalization...............................  $2,976,979     $4,143,286
                                                              ==========     ==========
</TABLE>
 
- -------------------------
 
(1) The pro forma capitalization information is presented as if the transactions
    detailed above occurred on September 30, 1998.
 
                                       152
<PAGE>   159
 
(2) Convertible into 3.28407 shares of AIMCO Common Stock per share, or a total
    of 2,463,053 shares at the option of the holder, subject to certain
    antidilution adjustments.
 
(3) Includes 8,423,751 shares of AIMCO Common Stock issuable upon the assumed
    conversion of the Class E Preferred Stock, and excludes (i) 5,362,879 shares
    of AIMCO Common Stock which may be issued in exchange for 5,362,879 OP Units
    which may be tendered for redemption; (ii) 162,500 shares of AIMCO Common
    Stock issuable upon conversion of shares of Class B Common Stock, par value
    $.01 per share, of AIMCO ("Class B Common Stock"); (iii) 1,684,080 shares of
    AIMCO Common Stock issuable upon exercise of outstanding options and
    warrants; and (iv) 2,463,053 shares of AIMCO Common Stock which may be
    issued upon conversion of 750,000 shares of Class B Preferred Stock.
 
(4) Convertible into 162,500 shares of AIMCO Common Stock if certain performance
    standards are achieved, including 8.5% annual increases in both AIMCO's FFO
    per share and the market price of AIMCO Common Stock. See "Description of
    AIMCO Common Stock -- AIMCO Class B Common Stock."
 
                                       153
<PAGE>   160
 
                    BOARD OF DIRECTORS AND OFFICERS OF AIMCO
 
<TABLE>
<CAPTION>
            NAME              AGE   FIRST ELECTED             POSITION
            ----              ---   -------------             --------
<S>                           <C>   <C>             <C>
Terry Considine.............  51    July 1994       Chairman of the Board of
                                                      Directors and Chief
                                                      Executive Officer
Peter K. Kompaniez..........  53    July 1994       Vice Chairman, President and
                                                      Director
Joel F. Bonder..............  50    December 1997   Executive Vice President,
                                                      General Counsel and
                                                      Secretary
Patrick J. Foye.............  41    May 1998        Executive Vice President
Robert Ty Howard............  40    February 1998   Executive Vice President --
                                                      Ancillary Services
Steven D. Ira...............  47    July 1994       Executive Vice President and
                                                      Co-Founder
Thomas W. Toomey............  37    January 1996    Executive Vice President --
                                                      Finance and Administration
Harry G. Alcock.............  34    July 1996       Senior Vice President --
                                                      Acquisitions
Troy D. Butts...............  34    November 1997   Senior Vice President and
                                                      Chief Financial Officer
Richard S. Ellwood..........  65    July 1994       Director, Chairman, Audit
                                                      Committee
J. Landis Martin............  52    July 1994       Director, Chairman,
                                                      Compensation Committee
Thomas I. Rhodes............  58    July 1994       Director
John D. Smith...............  69    November 1994   Director
</TABLE>
 
     The following is a biographical summary of the experience of the current
directors and executive officers of AIMCO for the past five years or more.
 
     Terry Considine. Mr. Considine has been Chairman of the Board of Directors
and Chief Executive Officer of AIMCO since July 1994, and was President until
July 1997. He was elected as a trustee, Chairman of the IPT Board and Chief
Executive Officer of IPT on October 1, 1998. Mr. Considine is the sole owner of
Considine Investment Co. and prior to July 1994 was owner of approximately 75%
of Property Asset Management, L.L.C., a Colorado limited liability company, and
its related entities (collectively, "PAM"), one of the AIMCO Predecessors. On
October 1, 1996, Mr. Considine was appointed Co-Chairman and director of Asset
Investors Corp. and Commercial Asset Investors, Inc., two other public real
estate investment trusts, and appointed as a director of Financial Assets
Management, LLC, a real estate investment trust manager. Mr. Considine has been
involved as a principal in a variety of real estate activities, including the
acquisition, renovation, development and disposition of properties. Mr.
Considine has also controlled entities engaged in other businesses such as
television broadcasting, gasoline distribution and environmental laboratories.
Mr. Considine received
 
                                       154
<PAGE>   161
 
a B.A. from Harvard College, a J.D. from Harvard Law School and is admitted as a
member of, but currently has an inactive status with, the Massachusetts Bar.
 
     Mr. Considine has had substantial multifamily real estate experience. From
1975 through July 1994, partnerships or other entities in which Mr. Considine
had controlling interests invested in approximately 35 multifamily apartment
properties and commercial real estate properties. Six of these real estate
assets (four of which were multifamily apartment properties and two of which
were office properties) did not generate sufficient cash flow to service their
related indebtedness and were foreclosed upon by their lenders, causing pre-tax
losses of approximately $11.9 million to investors and losses of approximately
$2.7 million to Mr. Considine.
 
     Peter K. Kompaniez. Mr. Kompaniez has been Vice Chairman and a director of
AIMCO since July 1994 and was appointed President in July 1997. He was elected
as a trustee and President of IPT on October 1, 1998. Since September 1993, Mr.
Kompaniez has owned 75% of PDI Realty Enterprises, Inc., a Delaware corporation
("PDI"), one of AIMCO's predecessors, and serves as its President and Chief
Executive Officer. From 1986 to 1993, he served as President and Chief Executive
Officer of Heron Financial Corporation ("HFC"), a United States holding company
for Heron International, N.V.'s real estate and related assets. While at HFC,
Mr. Kompaniez administered the acquisition, development and disposition of
approximately 8,150 apartment units (including 6,217 units that have been
acquired by AIMCO) and 3.1 million square feet of commercial real estate. Prior
to joining HFC, Mr. Kompaniez was a senior partner with the law firm of Loeb and
Loeb where he had extensive real estate and REIT experience. Mr. Kompaniez
received a B.A. from Yale College and a J.D. from the University of California
(Boalt Hall).
 
     The downturn in the real estate markets in the late 1980s and early 1990s
adversely affected the United States real estate operations of Heron
International N.V. and its subsidiaries and affiliates (the "Heron Group").
During this period from 1986 to 1993, Mr. Kompaniez served as President and
Chief Executive Officer of HFC and as a director or officer of certain other
Heron Group entities. In 1993, HFC, its parent Heron International, and certain
other members of the Heron Group voluntarily entered into restructuring
agreements with separate groups of their United States and international
creditors. The restructuring agreement for the United States members of the
Heron Group generally provided for the joint assumption of certain liabilities
and the pledge of unencumbered assets in support of such liabilities for the
benefit of their United States creditors. As a result of the restructuring, the
operations and assets of the United States members of the Heron Group were
generally separated from those of Heron International and its non-United States
subsidiaries. At the conclusion of the restructuring, Mr. Kompaniez commenced
the operations of PDI, which was engaged to act as asset and corporate manager
of the continuing United States operations of HFC and the other United States
Heron Group members for the benefit of the United States creditors. In
connection with certain transactions effected at the time of the initial public
offering of AIMCO Common Stock, Mr. Kompaniez was appointed Vice Chairman of
AIMCO and substantially all of the property management assets of PDI were
transferred or assigned to AIMCO.
 
     Joel F. Bonder. Mr. Bonder was appointed Executive Vice President and
General Counsel of AIMCO effective December 8, 1997. He was appointed as
Executive Vice
 
                                       155
<PAGE>   162
 
President and General Counsel of IPT on October 1, 1998. Prior to joining AIMCO,
Mr. Bonder served as Senior Vice President and General Counsel of NHP from April
1994 until December 1997. Mr. Bonder served as Vice President and Deputy General
Counsel of NHP from June 1991 to March 1994 and as Associate General Counsel of
NHP from 1986 to 1991. From 1983 to 1985, Mr. Bonder practiced with the
Washington, D.C. law firm of Lane & Edson, P.C. From 1979 to 1983, Mr. Bonder
practiced with the Chicago law firm of Ross and Hardies. Mr. Bonder received an
A.B. from the University of Rochester and a J.D. from Washington University
School of Law.
 
     Patrick J. Foye. Mr. Foye has served as Executive Vice President of AIMCO
since May 1998. On October 1, 1998, Mr. Foye was elected as a trustee of IPT.
Prior to joining AIMCO, he was a partner in the law firm of Skadden, Arps,
Slate, Meagher & Flom LLP from 1989 to 1998 and was Managing Partner of the
firm's Brussels, Budapest and Moscow offices from 1992 through 1994. Mr. Foye is
also Deputy Chairman of the Long Island Power Authority and serves as a member
of the New York State Privatization Council. He received a B.A. from Fordham
College and a J.D. from Fordham University Law School.
 
     Robert Ty Howard. Mr. Howard was appointed Executive Vice
President -- Ancillary Services in February 1998. Prior to joining AIMCO, Mr.
Howard served as an officer and/or director of four affiliated companies, Hecco
Ventures, Craig Corporation, Reading Company and Decurion Corporation. Mr.
Howard was responsible for financing, mergers and acquisitions activities,
investments in commercial real estate, both nationally and internationally,
cinema development and interest rate risk management. From 1983 to 1988, he was
employed by Spieker Properties. Mr. Howard received a B.A. from Amherst College,
a J.D. from Harvard Law School and an M.B.A. from Stanford University Graduate
School of Business.
 
     Steven D. Ira. Mr. Ira is a Co-Founder of AIMCO and has served as Executive
Vice President of AIMCO since July 1994. Mr. Ira was elected as a trustee and
Executive Vice President of IPT on October 1, 1998. From 1987 until July 1994,
he served as President of PAM. Prior to merging his firm with PAM in 1987, Mr.
Ira acquired extensive experience in property management. Between 1977 and 1981,
he supervised the property management of over 3,000 apartment and mobile home
units in Colorado, Michigan, Pennsylvania and Florida, and in 1981 he joined
with others to form the property management firm of McDermott, Stein and Ira.
Mr. Ira served for several years on the National Apartment Manager Accreditation
Board and is a former president of both the National Apartment Association and
the Colorado Apartment Association. Mr. Ira is the sixth individual elected to
the Hall of Fame of the National Apartment Association in its 54-year history.
He holds a Certified Apartment Property Supervisor (CAPS) and a Certified
Apartment Manager designation from the National Apartment Association and a
Certified Property Manager ("CPM") designation from the National Institute of
Real Estate Management ("IREM") and he is a member of the Boards of Directors of
the National Multi-Housing Council, the National Apartment Association and the
Apartment Association of Metro Denver. Mr. Ira received a B.S. from Metropolitan
State College in 1975.
 
     Thomas W. Toomey. Mr. Toomey has served as Senior Vice President -- Finance
and Administration of AIMCO since January 1996 and was promoted to Executive
Vice President -- Finance and Administration in March 1997. On October 1, 1998,
Mr. Toomey was elected as a trustee and Executive Vice President -- Finance and
Administration of
 
                                       156
<PAGE>   163
 
IPT. From 1990 until 1995, Mr. Toomey served in a similar capacity with Lincoln
Property Company ("LPC") as Vice President/Senior Controller and Director of
Administrative Services of Lincoln Property Services where he was responsible
for LPC's computer systems, accounting, tax, treasury services and benefits
administration. From 1984 to 1990, he was an audit manager with Arthur Andersen
& Co. where he served real estate and banking clients. From 1981 to 1983, Mr.
Toomey was on the audit staff of Kenneth Leventhal & Company. Mr. Toomey
received a B.S. in Business Administration/ Finance from Oregon State University
and is a Certified Public Accountant.
 
     Harry G. Alcock. Mr. Alcock has served as a Vice President of AIMCO since
July 1996, and was promoted to Senior Vice President -- Acquisitions in October
1997, with responsibility for acquisition and financing activities since July
1994. He was elected as a trustee and Senior Vice President -- Acquisition of
IPT on October 1, 1998. From June 1992 until July 1994, Mr. Alcock served as
Senior Financial Analyst for PDI and HFC. From 1988 to 1992, Mr. Alcock worked
for Larwin Development Corp., a Los Angeles based real estate developer, with
responsibility for raising debt and joint venture equity to fund land
acquisitions and development. From 1987 to 1988, Mr. Alcock worked for Ford
Aerospace Corp. He received his B.S. from San Jose State University.
 
     Troy D. Butts. Mr. Butts has served as Senior Vice President and Chief
Financial Officer of AIMCO since November 1997. On October 1, 1998, Mr. Butts
was appointed Senior Vice President and Chief Financial Officer of IPT. Prior to
joining AIMCO, Mr. Butts served as a Senior Manager in the audit practice of the
Real Estate Services Group for Arthur Andersen LLP in Dallas, Texas. Mr. Butts
was employed by Arthur Andersen LLP for ten years, and his clients were
primarily publicly-held real estate companies, including office and multi-family
real estate investment trusts. Mr. Butts holds a Bachelor of Business
Administration degree in Accounting from Angelo State University and is a
Certified Public Accountant.
 
     Richard S. Ellwood. Mr. Ellwood was appointed a director of AIMCO in July
1994 and is currently Chairman of the Audit Committee. Mr. Ellwood is the
founder and President of R.S. Ellwood & Co., Incorporated, a real estate
investment banking firm. Prior to forming R.S. Ellwood & Co., Incorporated in
1987, Mr. Ellwood had 31 years experience as an investment banker, serving as:
Managing Director and senior banker at Merrill Lynch Capital Markets from 1984
to 1987; Managing Director at Warburg Paribas Becker from 1978 to 1984; general
partner and then Senior Vice President and a director at White, Weld & Co. from
1968 to 1978; and in various capacities at J.P. Morgan & Co. from 1955 to 1968.
Mr. Ellwood currently serves as a director of FelCor Suite Hotels, Inc. and
Florida East Coast Industries, Inc.
 
     J. Landis Martin. Mr. Martin was elected a director of AIMCO in July 1994
and became Chairman of the Compensation Committee in March 1998. Mr. Martin has
served as President and Chief Executive Officer and a director of NL Industries,
Inc. ("NL"), a manufacturer of titanium dioxide, since 1987. Mr. Martin has
served as Chairman of Tremont Corporation ("Tremont"), a holding company
operating through its affiliates Titanium Metals Corporation ("TIMET") and NL,
since 1990 and as Chief Executive Officer and a director of Tremont since 1988.
Mr. Martin has served as Chairman of TIMET, an integrated producer of titanium,
since 1987 and Chief Executive Officer since January 1995. From 1990 until its
acquisition by Dresser Industries, Inc. ("Dresser") in 1994, Mr. Martin served
as Chairman of the Board and Chief Executive Officer of Baroid
 
                                       157
<PAGE>   164
 
Corporation, an oilfield services company. In addition to Tremont, NL and TIMET,
Mr. Martin is a director of Dresser, which is engaged in the petroleum services,
hydrocarbon and engineering industries.
 
     Thomas L. Rhodes. Mr. Rhodes was elected a director of AIMCO in July 1994.
Mr. Rhodes has served as the President and a Director of National Review since
November 30, 1992 where he has also served as a Director since 1988. From 1976
to 1992, he held various positions at Goldman, Sachs & Co. and was elected a
General Partner in 1986 and served as a General Partner from 1987 until November
27, 1992. He is currently Co-Chairman of the Board, Co-Chief Executive Officer
and a Director of Commercial Assets Inc. and Asset Investors Corporation. He
also serves as a Director of Delphi Financial Group, Inc. and its subsidiaries,
Delphi International Ltd., Oracle Reinsurance Company, and The Lynde and Harry
Bradley Foundation. Mr. Rhodes is Chairman of the Empire Foundation for Policy
Research, a Founder and Trustee of Change NY, a Trustee of the Heritage
Foundation, and a Trustee of The Manhattan Institute.
 
     John D. Smith. Mr. Smith was elected a director of AIMCO in November 1994.
Mr. Smith is Principal and President of John D. Smith Developments. Mr. Smith
has been a shopping center developer, owner and consultant for over 8.6 million
square feet of shopping center projects including Lenox Square in Atlanta,
Georgia. Mr. Smith is a Trustee and former President of the International
Council of Shopping Centers and was selected to be a member of the American
Society of Real Estate Counselors. Mr. Smith served as a director for
Pan-American Properties, Inc. (National Coal Board of Great Britain) formerly
known as Continental Illinois Properties. He also serves as a director of
American Fidelity Assurance Companies and is retained as an advisor by Shop
System Study Society, Tokyo, Japan.
 
                                       158
<PAGE>   165
 
                        PRINCIPAL STOCKHOLDERS OF AIMCO
 
     The following table sets forth certain information available to AIMCO, as
of December 31, 1998, with respect to shares of AIMCO Common Stock and OP Units
held by (i) each director and the five most highly compensated executive
officers who were serving as of December 31, 1998, (ii) all directors and
executive officers of AIMCO as a group and (iii) those persons known to AIMCO to
be the beneficial owners (as determined under the rules of the SEC) of five
percent or more of such shares. The business address of each of the following is
1873 South Bellaire Street, Suite 1700, Denver, Colorado 80222-4348, unless
otherwise specified.
 
<TABLE>
<CAPTION>
                                                                                            PRO FORMA
                                 NUMBER OF        PERCENTAGE                  PERCENTAGE   PERCENTAGE
                                 SHARES OF         OF AIMCO                   OWNERSHIP     OWNERSHIP
NAME AND ADDRESS                   AIMCO         COMMON STOCK    NUMBER OF        OF           OF
OF BENEFICIAL OWNER             COMMON STOCK     OUTSTANDING    OP UNITS(1)    AIMCO(2)    AIMCO(2)(3)
- -------------------             ------------     ------------   -----------   ----------   -----------
<S>                             <C>              <C>            <C>           <C>          <C>
Directors and Executive
  Officers:
  Terry Considine.............   1,713,274(4)        3.0%         784,967(5)     3.7%        --
  Peter K. Kompaniez..........     641,427(11)       1.1           23,625        1.0         --
  Steven D. Ira...............     230,519(6)        0.4           96,605        0.5         --
  Thomas W. Toomey............     239,632           0.4               --        0.4         --
  Harry G. Alcock.............      20,126(7)          *               --          *         *
  Richard S. Ellwood..........      16,200(8)          *               --          *         *
  J. Landis Martin............       4,000             *               --          *         *
  Thomas L. Rhodes............      43,600             *               --          *         *
  John D. Smith...............      16,700(9)          *               --          *         *
All Directors and Executive
  Officers as a group (15
  persons)....................   3,001,400(10)       5.3          905,197        5.9         --
Five Percent or Greater
  Holders:
  Cohen & Steers Realty
    Shares, Inc. .............   4,432,000           7.8               --        6.7         --
    757 Third Avenue
    New York, NY 10017
  ABKB/LaSalle Securities
    Limited Partnership.......   3,462,000(12)       6.1               --        5.2         --
    100 East Pratt Street
    Baltimore, Maryland 21202
  Fidelity Management &
    Research..................   2,904,000           5.1               --        4.4         --
</TABLE>
 
- -------------------------
 
  *  Less than 0.1%
 
 (1) Through wholly owned subsidiaries, AIMCO acts as general partner of, and,
     as of December 31, 1998, holds 83% of the interests in, the AIMCO Operating
     Partnership. After a one-year holding period, OP Units may be tendered for
     redemption and, upon tender, may be acquired by AIMCO for shares of AIMCO
     Common Stock at an exchange ratio of one share of AIMCO Common Stock for
     each OP Unit (subject to adjustment) or for cash, at AIMCO's option. If all
     OP Units were acquired by AIMCO for AIMCO Common Stock (without regard to
     the ownership limit) these shares of AIMCO Common Stock would constitute
     approximately
 
                                       159
<PAGE>   166
 
     15% of the then outstanding shares of AIMCO Common Stock. OP Units are
     subject to certain restrictions on transfer.
 
 (2) On a fully diluted basis, assuming all 9,763,488 OP Units outstanding as of
     December 31, 1998 are acquired by AIMCO for shares of AIMCO Common Stock at
     the exchange ratio of one OP Unit for each share of AIMCO Common Stock
     without regard to the ownership limit.
 
 (3) AIMCO closed the IFG Merger on October 1, 1998, and the shares of Class E
     Preferred Stock issued in the IFG Merger are assumed (and were, on January
     15, 1999) converted into AIMCO Common Stock.
 
 (4) Includes 1,334,759 shares held by entities in which Mr. Considine holds
     sole voting and investment power, 74,743 shares held by Mr. Considine's
     spouse, Elizabeth Considine, for which Mr. Considine disclaims beneficial
     ownership, and 63,278 shares held by a non-profit corporation in which Mr.
     Considine has shared voting and investment power with his spouse. Mr.
     Considine disclaims beneficial ownership of 1,220,078 shares held by
     Considine family partnership's in which Mr. Considine holds a 10% general
     partnership interest with the remaining 90% held by trusts for members of
     Mr. Considine's family.
 
 (5) Includes 163,024 OP Units held by entities in which Mr. Considine has sole
     voting and investment power, 2,300 OP Units held by the Considine family
     partnerships, for 99% of which Mr. Considine disclaims beneficial
     ownership, and 157,698 OP Units held by Mr. Considine's spouse, Elizabeth
     Considine, for which Mr. Considine disclaims beneficial ownership.
 
 (6) Includes 49,600 shares subject to options that are exercisable within 60
     days.
 
 (7) Includes 5,525 shares subject to options that are exercisable within 60
     days.
 
 (8) Includes 4,500 shares subject to options that are exercisable within 60
     days.
 
 (9) Includes 12,000 shares subject to options that are exercisable within 60
     days.
 
(10) Includes 99,654 shares subject to options that are exercisable within 60
     days.
 
(11) Includes 800 shares subject to options that are exercisable within 60 days.
 
(12) Includes 937,508 shares beneficially owned by LaSalle Advisors Capital
     Management, Inc.
 
                                       160
<PAGE>   167
 
                                BUSINESS OF IPT
 
GENERAL
 
     IPT is a Maryland real estate investment trust formed by IFG in May 1996
primarily for the purpose of acquiring and owning interests in multifamily
residential properties, principally through ownership of limited and general
partner interests in real estate limited partnerships. IPT has been organized
and operates in a manner that qualifies it to be taxed as a REIT under the Code.
Substantially all of IPT's assets are held through its operating partnership,
IPLP. On September 17, 1998, AMIT was merged into IPT. AMIT was in the business
of making various types of intermediate term real estate loans.
 
     As of the date of the AMIT Merger, AMIT had 19 loans outstanding, with an
aggregate principal balance of approximately $21.1 million, and AMIT owned, as a
result of foreclosures or receipt of deed in lieu of foreclosure on certain
assets securing certain AMIT loans, approximately $14.4 million of real
property, net of a fair value adjustment of $1.5 million. As of September 17,
1998, 10 of the 19 AMIT loans outstanding were to the Controlled Partnerships
(as defined below) with an aggregate principal balance of $12.1 million. IPT
acquired these assets as a part of the AMIT Merger, as well as approximately
$13.4 million of cash held by AMIT at the time of the AMIT Merger.
 
     Immediately prior to the execution of the Original Merger Agreement, IPT
held equity interests in and effectively controlled 121 real estate limited
partnerships (the "Controlled Partnerships") and held ten wholly-owned real
estate assets. IPT (or its subsidiary) owned a controlling equity interest in
each entity that comprises or controls the managing general partner of each
Controlled Partnership, and IPLP (and its subsidiaries) owned the limited
partner interests in the Controlled Partnerships and IPT's ten existing
wholly-owned real estate assets. The Controlled Partnerships in which IPT owns a
material interest are referred to herein as the "IPT Partnerships." The IPT
Partnerships are listed beginning on the following page. As of October 1, 1998,
the Controlled Partnerships owned a total of approximately 339 properties
containing approximately 70,000 residential apartment units and approximately
5.9 million square feet of commercial space, and of those, the IPT Partnerships
owned a total of approximately 197 properties containing approximately 48,000
residential apartment units and approximately 3 million square feet of
commercial space. See "IPT Formation Transactions and Certain Recent
Developments."
 
     On December 7, 1998, IPLP and the AIMCO Operating Partnership entered into
the IPLP Assignment Agreement, which amended and restated a similar agreement,
dated as of October 1, 1998. Pursuant to the IPLP Assignment Agreement,
effective October 1, 1998, IPLP transferred the economic rights to the Assets to
the AIMCO Operating Partnership and the AIMCO Operating Partnership assumed all
of IPLP's obligations relating to the Assets in exchange for approximately 10.2
million OP Units. Immediately following the IPLP Exchange, the sole assets owned
by IPLP consisted of (i) a 100% ownership interest in Cooper River Properties,
LLC (which in turn owns limited partner units in a number of publicly-traded
limited partnerships), (ii) cash, (iii) IPLP's rights under that certain Credit
Agreement among IPLP, Lehman Syndicated Loan Funding Trust, as syndication
agent, First Union National Bank, as administrative agent, and the lenders from
time to time parties thereto (the "IPLP Credit Agreement"), (iv) approximately
10.2 million OP Units and (v) all residual rights under the Assets (which have
insignificant economic value).
 
                                       161
<PAGE>   168
 
     The number of OP Units issued by the AIMCO Operating Partnership to IPLP in
the IPLP Exchange was calculated based upon an OP Unit value of $37.75, the
market price of AIMCO Common Stock on September 30, 1998. The economic rights to
the Assets were valued by IPLP and the AIMCO Operating Partnership at
approximately $386.2 million, which resulted in the AIMCO Operating Partnership
issuing approximately 10.2 million OP Units to IPLP in exchange for the economic
rights to the Assets.
 
     As of December 31, 1998, there were 23,484,538 IPT Common Shares issued and
outstanding, 12,033,556 (or approximately 51%) of which were owned by AIMCO and
its subsidiaries, as the successor to IFG. Upon consummation of the IFG Merger
on October 1, 1998, IPLP had three partners. IPT was the sole general partner
and owned 23,446,538 (or approximately 70%) of outstanding IPLP OP Units. AIMCO,
as the successor to IFG, was the special limited partner and owned 8,919,480 (or
approximately 27%) of the outstanding IPLP OP Units. Insignia Capital
Corporation ("ICC"), a wholly-owned subsidiary of AIMCO, was a limited partner
and owned 1,014,495 (or approximately 3%) of the outstanding IPLP OP Units.
Subsequently, AIMCO and ICC contributed their interests in IPLP to the AIMCO
Operating Partnership, making the AIMCO Operating Partnership the owner of
approximately 30% of the outstanding IPLP OP Units. The affairs of IPLP and the
relations among its partners are governed by the IPLP Partnership Agreement.
Under the IPLP Partnership Agreement, the AIMCO Operating Partnership is
designated as the special limited partner of IPLP and, as such, possesses
special rights with respect to certain matters concerning IPLP. Limited partners
of IPLP have the right, under certain circumstances, to require IPLP to redeem
their IPLP OP Units for cash, subject, however, to certain first rights of IPT
to acquire such IPLP OP Units for IPT Common Shares. See "The IPLP Partnership
Agreement."
 
     Under the IPLP Partnership Agreement, IPT is required to cause the AIMCO
Operating Partnership, as the holder of the interests formerly held by IFG, to
be retained to provide (i) property management services with respect to
virtually all properties currently or hereafter controlled (directly or
indirectly) by IPT and (ii) partnership administration services to certain of
the partnerships controlled by IPT. IPT, IPLP and IFG (now AIMCO) also are
parties to an agreement (the "Acquisition and Disposition Services Agreement"),
pursuant to which IPT has engaged AIMCO to provide certain real estate
securities acquisition and disposition services to IPT and IPLP. See "The IPLP
Partnership Agreement" and "Acquisition and Disposition Services Agreement."
 
THE IPT PARTNERSHIPS
 
     The table below sets forth the following information with respect to each
of the IPT Partnerships, in each case as of September 30, 1998: (i) its name;
(ii) IPT's aggregate (direct and indirect) stated ownership interest therein
(taking into account both limited and general partner interests); (iii) the
number of properties owned; (iv) the number of residential apartment units
contained in the properties; and (v) the number of square feet of commercial
space contained in the properties.
 
<TABLE>
<CAPTION>
                                                  IPT'S STATED
                                                   OWNERSHIP     NUMBER OF    RESIDENTIAL   COMMERCIAL
                                                    INTEREST     PROPERTIES      UNITS      SQUARE FEET
                                                  ------------   ----------   -----------   -----------
<S>                                               <C>            <C>          <C>           <C>
Consolidated Capital Growth Fund(b)(c)..........     44.48%           4          1,647             --
Consolidated Capital Institutional
  Properties(c).................................     40.54%          14          3,572        224,624
</TABLE>
 
                                       162
<PAGE>   169
 
<TABLE>
<CAPTION>
                                                  IPT'S STATED
                                                   OWNERSHIP     NUMBER OF    RESIDENTIAL   COMMERCIAL
                                                    INTEREST     PROPERTIES      UNITS      SQUARE FEET
                                                  ------------   ----------   -----------   -----------
<S>                                               <C>            <C>          <C>           <C>
Consolidated Capital Institutional
  Properties/2(c)...............................     21.40%          11            856        955,700
Consolidated Capital Institutional
  Properties/3(c)...............................     24.71%          10          1,661        276,793
Consolidated Capital Properties III(a)(b).......     24.34%           4            468        137,184
Consolidated Capital Properties IV(a)(b)........     27.10%          17          4,258             --
Consolidated Capital Properties V(a)(b).........     25.19%           3            454         85,727
Consolidated Capital Properties VI(a)(b)........     22.35%           1            261             --
Johnstown/Consolidated Income Partners(b).......     20.95%           3            158        143,436
Multi-Benefit Realty Fund 87-1(b)...............     22.69%           3            778             --
Shelter Properties I(a).........................     46.96%           4            806             --
Shelter Properties II(a)........................     40.51%           3            853             --
Shelter Properties III(a).......................     34.03%           4            831             --
Shelter Properties IV(a)........................     39.64%           3          1,620             --
Shelter Properties V(a).........................     43.69%           7          1,944             --
Shelter Properties VI(a)........................     35.59%           6          1,456             --
Shelter Properties VII(a).......................     23.07%           2            566             --
National Property Investors III(b)(c)...........     45.39%           3          1,092             --
National Property Investors 4(b)(c).............     61.94%           1            722             --
National Property Investors 5(b)(c).............     46.66%           3            895             --
National Property Investors 6(b)(c).............     44.40%           6          1,691             --
National Property Investors 7(b)(c).............     42.55%           5          1,122             --
National Property Investors 8(b)(c).............     38.62%           2            672             --
Century Properties Fund XIV(a)(b)...............     45.82%           3            850             --
Century Properties Fund XV(a)(b)................     44.45%           2            962             --
Century Properties Fund XVI(a)(b)...............     36.90%           2            472             --
Century Properties Fund XVII(a)(b)..............     38.35%           5          1,993             --
Century Properties Fund XVIII(a)(b).............     35.69%           2            724             --
Century Properties Fund XIX(a)(b)...............     33.03%           8          2,278             --
Century Properties Growth Fund XXII(a)(b).......     27.02%           9          2,895             --
Fox Strategic Housing Income Partners...........     15.67%           2            344             --
Davidson Growth Plus, L.P.......................     11.57%           3            688             --
Davidson Diversified Real Estate II, L.P........      4.72%           5          1,342        160,000
Davidson Income Real Estate, L.P................      4.77%           4            580             --
HCW Pension Real Estate Fund....................      2.45%           2            269        104,312
Angeles Income Properties, Ltd. II..............     13.26%           5            780        169,168
Angeles Income Properties, Ltd. IV..............      8.01%           2             --        345,287
Angeles Income Properties, Ltd. 6...............      5.09%           6            907        251,200
Angeles Opportunity Properties, Ltd.............      4.23%           2            352             --
Angeles Partners IX.............................     18.22%           5          1,441             --
Angeles Partners XII............................     22.24%          10          2,855        173,473
Woodhaven Associates, L.P.......................     36.36%           1            208             --
</TABLE>
 
- -------------------------
 
(a) Indicates that (i) the stated interest of the general partner with respect
    to distributions of net sales and refinancings proceeds are subordinated to
    priority returns of and on limited partner investments, or (ii) the general
    partner is required to restore
 
                                       163
<PAGE>   170
 
    distributions received on account of their stated interests in the event the
    limited partners fail to receive distributions in an aggregate amount equal
    to their aggregate original investment. IPT believes, based on current real
    estate values, that these limited partner priorities would not be achieved
    and thus IPT has valued the stated general partner interest in such
    partnership at zero.
 
(b) Indicates that the general partner has an additional interest in the
    partnership (e.g., "incentive fees") which effectively entitles it to
    participate in the results of operations in fixed percentages beyond the
    stated interest of the general partner. With respect to each National
    Property Investors ("NPI") partnership, there is a maximum annual amount the
    general partner may receive in respect of such additional fixed-percentage
    interest.
 
(c) Indicates that the interest of the general partner in distributions of net
    proceeds from property sales and refinancings is generally greater than its
    stated interest in the partnership, assuming the limited partners have
    recovered their investments and stated returns thereon. In addition, certain
    partnerships allocate a portion of the sales proceeds to the general partner
    as a non-subordinated disposition fee. Based on the terms of the applicable
    partnership agreements and estimated current property values, IPT believes
    that the general partner would be allocated a greater portion of net sales
    or refinancing proceeds than their stated interest would indicate.
 
BUSINESS OBJECTIVES
 
     IPT's primary business objective has been to acquire interests in
multifamily residential properties located in the United States, including
through (i) direct ownership of such properties; (ii) indirect ownership of
properties through investments in limited partnerships, joint ventures or other
entities owning such properties; and (iii) indebtedness secured by such
properties. Since the execution of the Original Merger Agreement, IPT, through
IPLP, has made acquisitions; however, it is unclear whether IPT will continue to
acquire any additional multifamily residential property interests. IPT has
sought and may seek to engage in transactions that would enhance the value of
such interests and that IPT's management believed ultimately would provide
superior returns to the shareholders of IPT and the limited partners of IPLP.
Once interests, if any, are acquired, IPT may take such action as it deems
appropriate to try to enhance the return on its investment in such interests.
IPT intends to utilize the significant experience of AIMCO, as successor to IFG,
in managing and, during the term of the Acquisition and Disposition Services
Agreement, in possibly acquiring the multifamily residential properties or
interests in multifamily residential properties described above.
 
     IPT believes that there are attractive opportunities to acquire interests
in multifamily residential properties. IPT anticipates that it may seek to
acquire additional interests in certain IPT Partnerships to the extent such
interests become available at prices that IPT considers favorable in light of
its assessment of the value of the underlying properties. IPT also may pursue
opportunities to acquire multifamily real estate assets or interests in such
real estate assets from other sources, either through the acquisition of general
and limited partner interests in partnerships that hold such assets, direct or
indirect investments in fee interests, or investments in debt secured by such
real estate assets.
 
     IPT will seek to enhance the value of its real estate portfolio in a
variety of ways, which could include: (i) arranging for the underlying
properties in which it holds an
 
                                       164
<PAGE>   171
 
interest to be managed by AIMCO, as successor to IFG, and/or its property
management affiliates with a view to achieving material increases in FFO and
distributable cash flow and (ii) realizing economies of scale through mergers or
consolidations of partnerships (and other entities) in which IPT has invested,
or combinations of such partnerships (and other entities) with other issuers.
 
     In addition to its interests in multifamily residential property, IPT, as a
result of the AMIT Merger, acquired AMIT's assets which primarily consist of
loans secured by mortgages and other real estate related interests. IPT intends
to manage the loan portfolio of AMIT substantially in accordance with the past
practices of AMIT. Although IPT has no present intentions to originate any new
loans, it may do so in the future depending upon the capital resources of IPT
and the relative anticipated returns on such investments.
 
     Also, although it has no current plans to do so, IPT may seek to develop
real estate and engage in transactions with respect to such development that are
consistent with IPT's investment policies and that IPT believes will enhance the
value of such properties.
 
ACQUISITION STRATEGIES
 
     If IPT determines to continue making acquisitions, its primary strategies
with respect to an acquisition of interests in multifamily residential
properties would be to:
 
     - acquire additional general partner interests in other limited
       partnerships (and controlling interests in other types of entities) that
       own multifamily residential properties as a material portion of their
       holdings;
 
     - purchase other direct and indirect interests, including fee interests, in
       multifamily residential properties;
 
     - invest in debt secured by mortgages and other real estate-related
       interests. In this regard IPT intends to manage the portfolio of AMIT
       mortgages in accordance with the past practices of AMIT; and
 
     - possibly acquire additional limited partner interests in the Controlled
       Partnerships, including the IPT Partnerships.
 
     In making decisions whether to acquire interests in particular real
properties, IPT would consider the real estate and capital market conditions. In
addition, IPT would consider such factors as: (i) the recent sales prices (if
any) of such interests in relation to IPT's estimate of the value of the
underlying real estate assets; (ii) the geographic area, type of property and
demographic profile of the underlying properties; (iii) the location,
construction quality, condition and design of such properties; (iv) the current
and anticipated cash flow of such properties and its adequacy to meet
operational needs; (v) the potential for capital appreciation, if any; (vi) the
growth, tax and regulatory environments of the communities in which such
properties are located; and (vii) the impact of such investment on IPT's ability
to maintain its REIT status. Finally, with respect to potential investments in
interests of any limited partnership, in deciding whether to acquire such
limited partner interests, IPT would consider whether it would acquire in the
transaction, or could reasonably expect in the future to acquire, ownership or
control of the general partner of such limited partnership.
 
                                       165
<PAGE>   172
 
     Additionally, under the terms of the Acquisition and Disposition Services
Agreement, IPT is required to inform AIMCO, as successor to IFG, of certain
opportunities to invest in commercial properties and may not invest in such
properties without the prior consent of AIMCO. See "Acquisition and Disposition
Services Agreement -- Agreement Regarding Certain Real Estate Opportunities."
 
OPERATING ACTIVITIES
 
     Once interests in multifamily residential properties have been acquired,
IPT has broad powers to take such actions as the IPT Board deems necessary to
enhance returns on its investments in such interests.
 
     As required by the IPLP Partnership Agreement, IPT has retained the AIMCO
Operating Partnership, as the holder of the interest formerly held by IFG, to
manage all of the real properties controlled by IPT. Historically, upon the
acquisition of limited partner interests in a real estate limited partnership in
which IFG or Metropolitan Asset Enhancement, L.P., a Delaware limited
partnership affiliated with IFG ("MAE"), controlled the general partner, IFG
continued its strategy of working to increase the value of, and cash flow
generated by, such partnership's assets. IPT believes that IFG's property
management capabilities (which AIMCO acquired) contributed significantly to the
potential benefit of owning interests in real estate limited partnerships. IPT
believes that IFG had been able to manage such partnerships at a net cost to the
partnerships that is lower than that charged by predecessor managers and has
traditionally achieved improvements in property operations compared to the
predecessor managers.
 
     IPT expects that the general partners of each of the Controlled
Partnerships, and of any other real estate limited partnerships in which IPT may
acquire interests, will seek and review opportunities to engage in transactions
which may enhance returns to the partnership's limited partners. In that regard,
IPT expects that the general partners will carefully consider any suggestions or
proposals that IPT may make. IPT believes that possible future transactions
which may be proposed by the general partner of a limited partnership include:
(i) payment of distributions; (ii) refinancing, reducing or increasing existing
indebtedness of the limited partnership; (iii) sales of assets, individually or
as part of a complete liquidation of the limited partnership; and (iv) mergers
or other consolidation transactions involving the limited partnership. Any such
merger or consolidation transaction could involve other limited partnerships in
which IPT, the AIMCO Operating Partnership, as the holder of the interest
formerly held by IFG, or their respective affiliates serve as general partner,
or a combination of the partnership with one or more existing, publicly traded
entities (including, possibly, affiliates of IPT or AIMCO, as successor to IFG).
In any such merger or consolidation, limited partners might receive cash, IPT
Common Shares, IPLP OP Units or other securities or consideration. There can be
no assurance, however, as to when or whether any of the transactions referred to
above might occur. A merger or other consolidation transaction and certain kinds
of other extraordinary transactions would require a vote of the limited partners
in the subject limited partnership, and by holding a substantial number of units
of limited partner interests in the partnership, IPT, as general partner of
IPLP, will be able to influence (and in some instances may be able to control)
the outcome of such a vote.
 
                                       166
<PAGE>   173
 
INVESTMENT POLICIES
 
     If IPT were to make any investments, IPT would invest primarily in
multifamily residential real estate located in the United States. Such
investments could be made through the acquisition of general and limited partner
interests in limited partnerships and the acquisitions of direct and indirect
fee interests. Although it has no current plans to do so, IPT may also invest in
debt secured by mortgages and other real estate-related interests. IPT has no
present intention to invest in commercial real estate except to the extent any
commercial properties may be acquired incidentally to the acquisition of
multifamily residential portfolios. In addition, although it has no current
intention to do so, IPT has the authority to invest in real estate interests
outside of the United States.
 
     Subject to the REIT qualification requirements, there is no limitation on
the percentage of IPT's total assets that may be invested in any one investment.
The IPT Board may establish such limitations as it deems appropriate from time
to time without a vote of the shareholders. No limits have been set on the
number of limited partnerships in which IPT may seek to invest, or on the
concentration of investment in any one limited partnership or in any geographic
area.
 
     IPT may invest its cash in certain short-term investment grade instruments.
Such investments may be in interest-bearing bank accounts, certificates of
deposit, money-market securities, United States government securities,
mortgage-backed securities guaranteed by the Government National Mortgage
Association, mortgages insured by the Federal Housing Administration or
guaranteed by the Veterans Administration, mortgage loans, mortgage loan
participations and certain other similar investments. IPT's ability to make
certain of these investments may be limited by tax considerations.
 
     IPT may, but does not presently intend to, make investments other than as
previously described. IPT has the authority to offer IPT Common Shares or other
senior securities in exchange for property and to repurchase or otherwise
reacquire IPT Common Shares or any other securities, and may engage in such
activities in the future. In addition, IPT may cause IPLP to offer IPLP OP Units
in exchange for property. IPT has not made any loans to the trustees and
officers of IPT, although it may do so in the future. In addition, IPT may make
loans secured by real estate, including without limitation loans to the
Controlled Partnerships. At all times, if IPT were to make investments, it
intends to make investments in such a manner as to be consistent with the
requirements of the Code to qualify as a REIT unless, in light of changed
circumstances, the IPT Board determines that it is no longer in the best
interests of IPT and its shareholders to qualify as a REIT.
 
FINANCING POLICIES
 
     In the second and third quarters of 1997, IPT raised approximately $62
million in private stock offerings. See "-- Certain Recent
Developments -- Private Offerings." Additionally, IPLP has a line of credit in
the principal amount of $50 million. See "-- IPLP Credit Agreement."
 
CONFLICT OF INTEREST POLICIES
 
     IPT has adopted certain policies designed to minimize potential conflicts
of interest. The IPT Board is subject to certain provisions of Maryland law
described below, which are
 
                                       167
<PAGE>   174
 
designed to eliminate or minimize certain potential conflicts of interest.
However, there can be no assurance that these policies always will be successful
in eliminating the influence of such conflicts, and if they are not successful,
decisions could be made that might fail to reflect fully the interests of all
shareholders of IPT.
 
     The IPT Declaration authorizes IPT to enter into transactions, agreements
or other arrangements with any person or business entity even though one or more
trustees or officers of IPT may be a party to such agreement or an officer,
director, shareholder, partner, member, trustee or affiliate of such other
party, and no such agreement or transaction is void or voidable solely by reason
of the existence of any such relationship, if either (i) the existence of such
relationship is disclosed or known by (A) the IPT Board and the agreement or
transaction is approved by a majority of the disinterested members of the IPT
Board, or (B) the shareholders of IPT, and the agreement or transaction is
approved by a majority of the shareholders entitled to vote other than the
interested trustee or other party, or (ii) the agreement or transaction is fair
to IPT.
 
     Additionally, under the IPT Declaration, each trustee of IPT is required to
discharge his duties in good faith, with the care an ordinarily prudent person
in a like position would exercise under similar circumstances and in a manner he
reasonably believes to be in the best interest of IPT.
 
     Under IPT's Bylaws, as amended in connection with the Merger Agreement, a
committee of the IPT Board consisting of two of the AIMCO-nominated Trustees is
authorized to act on behalf of the IPT Board with respect to (i) all
transactions between IPT and AIMCO (other than loans and matters relating to the
Merger Agreement) and (ii) any offer by AIMCO to purchase limited partnership
interests in Controlled Partnerships or limited partnerships controlled by
Winthrop Financial Associates.
 
POLICIES WITH RESPECT TO OTHER ACTIVITIES
 
     IPT has authority to offer equity or debt securities in exchange for
property and to repurchase or otherwise reacquire securities and may engage in
such activities in the future. IPT also may make loans to IPLP. As described
under "The IPLP Partnership Agreement -- Redemption Rights," IPT may (but is not
obligated to) issue IPT Common Shares to holders of IPLP OP Units upon exercise
of their redemption rights, subject to certain restrictions and limitations. IPT
has not engaged in underwriting or agency distribution of the securities of
other issuers and does not intend to do so. IPT has made and may make
investments in such a way that it will not be treated as an investment company
under the Investment Company Act of 1940, as amended.
 
     If IPT makes any investments, IPT would invest in a manner consistent with
the requirements of the Code for IPT to qualify as a REIT unless, because of
changing circumstances or changes in the Code (or in the Treasury Regulations),
the IPT Board determines that it is no longer in the best interests of IPT to
qualify as a REIT.
 
     IPT's policies with respect to such activities may be reviewed and modified
from time to time by the IPT Board without the vote of the shareholders of IPT.
 
                                       168
<PAGE>   175
 
                                   PROPERTIES
 
     The following table sets forth the number of properties, the primary use
and units, the average annual rental rate and average occupancy for each IPT
Partnership as of December 31, 1997.
 
<TABLE>
<CAPTION>
                                 NUMBER                                            AVERAGE
                                   OF                                           RENTAL ANNUAL       AVERAGE
NAME OF PARTNERSHIP            PROPERTIES   PRIMARY USE/UNITS                RATES/PER UNIT 1997   OCCUPANCY
- -------------------            ----------   -----------------                -------------------   ---------
<S>                            <C>          <C>                              <C>                   <C>
Consolidated Capital Growth
  Fund.......................        4      Apartment/1,647 units                 $7,124/unit        92.3%
Consolidated Capital
  Institutional
  Properties(a)..............       15(b)   12.5 Apartment/3,572 units            $7,466/unit        91.7%
                                            2.5 Commercial/320,764 sq. ft.     $13.87/sq. ft.        80.3%
Consolidated Capital
  Institutional
  Properties/2(c)............       11      4 Apartment/856 units                 $7,736/unit        93.2%
                                            7 Commercial/955,700 sq. ft.       $14.58 sq. ft.        92.8%
Consolidated Capital
  Institutional
  Properties/3...............       10      8 Apartment/1,661 units               $7,851/unit        94.9%
                                            2 Commercial/276,793 sq. ft.        $6.26 sq. ft.        92.9%
Consolidated Capital
  Properties III.............        4      3 Apartment/468 units                 $6,160/unit        94.0%
                                            1 Commercial/197,184 sq. ft.       $10.81/sq. ft.        93.6%
Consolidated Capital
  Properties IV..............       17(d)   3 Apartment/4,258 units               $6,816/unit        94.0%
Consolidated Capital
  Properties V...............        3      2 Apartment/454 units                 $7,211/unit        94.6%
                                            1 Commercial/85,727 sq. ft.        $14.74/sq. ft.        95.0%
Consolidated Capital
  Properties VI..............        1      Apartment/261 units                   $6,517/unit        88.0%
Shelter Properties I.........        4      Apartment/806 units                   $6,357/unit        94.3%
Shelter Properties II........        3      Apartment/853 units                   $6,650/unit        94.6%
Shelter Properties III.......        4      Apartment/831 units                   $6,754/unit        92.6%
Shelter Properties IV........        3      Apartment/1,620 units                 $7,014/unit        94.6%
Shelter Properties V.........        7      Apartment/1,944 units                 $7,083/unit        93.1%
Shelter Properties VI........        6      Apartment/1,456 units                 $7,093/unit        93.9%
Shelter Properties VII.......        2      Apartment/566 units                   $6,922/unit        91.7%
National Property Investors
  III........................        3      Apartment/1,092 units(e)              $7,852/unit        96.2%
National Property Investors
  4..........................        1      Apartment/722 units                   $9,136/unit        95.2%
National Property Investors
  5..........................     3.24(f)   Apartment/1,033 units                 $5,485/unit        91.7%
National Property Investors
  6..........................     6.76(g)   Apartment/2,129 units                 $6,316/unit        90.8%
National Property Investors
  7..........................        5      Apartment/1,122 units                 $6,746/unit        93.1%
National Property Investors
  8..........................        2      Apartment/672 units                   $7,123/unit        91.9%
Century Properties Fund
  XIV........................        3      3 Apartment/850 units                 $6,970/unit        93.3%
Century Properties Fund XV...        2      2 Apartment/962 units                 $7,898/unit        94.5%
Century Properties Fund
  XVI........................        2      Apartment/472 units                   $6,232/unit        95.2%
Century Properties Fund
  XVII.......................        5      Apartment/1,993 units                 $6,548/unit        95.2%
Century Properties Fund
  XVIII......................        2      Apartment/724 units                   $6,349/unit        94.7%
Century Properties Fund
  XIX........................        8      Apartment/2,278 units                 $7,297/unit        91.9%
</TABLE>
 
                                       169
<PAGE>   176
 
<TABLE>
<CAPTION>
                                 NUMBER                                            AVERAGE
                                   OF                                           RENTAL ANNUAL       AVERAGE
NAME OF PARTNERSHIP            PROPERTIES   PRIMARY USE/UNITS                RATES/PER UNIT 1997   OCCUPANCY
- -------------------            ----------   -----------------                -------------------   ---------
<S>                            <C>          <C>                              <C>                   <C>
Century Properties Growth
  Fund XXII..................        9      Apartment/2,895 units                 $7,438/unit        93.2%
Johnstown/Consolidated Income
  Partners...................        3(h)   1 Apartment/158 units                 $5,858/unit        97.0%
                                            2 Commercial/143,436 sq. ft.        $9.38/sq. ft.        81.0%
Davidson Growth Plus, L.P....        3      Apartment/688 units(i)                $7,794/unit        93.1%
Multi-Benefit Realty Fund
  '87-1......................        3      Apartment/778 units                   $6,571/unit        92.7%
Fox Strategic Housing Income
  Partners...................        2      Apartment/344 units                   $9,154/unit        93.0%
Davidson Diversified Real
  Estate II, L.L.P. .........        5      4 Apartments/1,342 units              $6,025/unit        90.2%
                                            1 Commercial/160,000 sq. ft.        $8.93/sq. ft.        71.0%
Angeles Income Properties,
  Ltd. II....................        4(j)   3 Apartments/780 units                $8,162/unit        96.6%
                                            1 Commercial/169,168 sq. ft.        $4.46/sq. ft.        91.0%
Angeles Income Properties
  Ltd. IV....................        2      2 Commercial/345,289 sq. ft.        $9.48/sq. ft.        90.5%
Angeles Income Properties
  Ltd. 6.....................        7      5 Residential/1,209 units             $4,872/unit        91.9%
                                            2 Commercial/251,200 sq. ft.        $6.19/sq. ft.        84.4%
Angeles Opportunity
  Properties, Ltd. ..........        2      2 Apartments/352 units                $6,563/unit        97.7%
Angeles Partners IX..........        5      5 Apartments/1,441 units              $5,482/unit        91.7%
Angeles Partners XII.........       10(k)   9 Apartments/2,855 units              $7,383 unit        89.2%
                                            1 Commercial/173,473 sq. ft.       $11.40/sq. ft.        53.0%
Davidson Income Real Estate,
  Ltd. ......................        4      4 Apartments/900 units(i)             $8,500/unit        92.4%
HCW Pension Real Estate Fund
  L.P. ......................        2      1 Apartment/269 units                 $7,751/unit        84.0%
                                            1 Commercial/104,312 sq. ft.       $13.80/sq. ft.        74.0%
Woodhaven Associates,
  L.P. ......................        1      Apartment/208 units                   $6,082/unit        94.4%
</TABLE>
 
- -------------------------
 
(a) Includes properties owned by Consolidated Capital Equity Properties, L.P.
    ("CCEP") in which Consolidated Capital Institutional Properties has a
    beneficial ownership interest as a result of its ownership of a significant
    amount of CCEP's debt securities.
 
(b) One property includes both commercial and residential space.
 
(c) Includes properties owned by Consolidated Capital Equity Properties/Two,
    L.P. ("CCEP2") in which Consolidated Capital Institutional Properties/2 has
    a beneficial ownership interest as a result of its ownership of a
    significant amount of CCEP2's debt securities.
 
(d) The partnership originally acquired 48 properties, of which 11 were sold,
    ten were conveyed to lenders in lieu of foreclosure, and nine were
    foreclosed upon by the lenders in the fiscal years prior to 1996. In
    February of 1996, the partnership lost an additional property through
    foreclosure. As of December 31, 1997, the partnership owned 17 apartment
    complexes and held one note receivable on a sold property.
 
                                       170
<PAGE>   177
 
(e) In January 1997, the partnership acquired co-tenant's 10% interest in 304 of
    the 1,092 units for $50,000.
 
(f) The partnership is a tenant in common with National Property Investors 6 on
    a property consisting of 576 units; 138 units represents the partnership's
    pro rata share.
 
(g) The partnership is a tenant in common with National Property Investors 5 on
    a property consisting of 576 units; 438 units represent the partnership's
    pro-rata share; the partnership owns 75.972% subject to a first mortgage.
 
(h) The partnership originally acquired four properties and funded five loans.
    At December 31, 1997, the partnership owned three properties.
 
(i) One apartment property (320 units) is held through a joint venture 82.5%
    owned by Davidson Growth Plus, L.P. and 17.5% owned by Davidson Income Real
    Estate, Ltd.
 
(j) Does not include a 14.4% interest in a golf course held by the partnership.
 
(k) Does not include a 44.5% interest in a golf course held by the partnership.
 
                               TAXES/DEPRECIATION
 
     The following table sets forth the aggregate gross carrying value, the
aggregate accumulated depreciation, the range and method of depreciation, and
the aggregate Federal tax basis of the properties owned by the IPT Partnerships
as of December 31, 1997 (all in thousands) and the aggregate 1997 taxes and tax
rate paid by the IPT Partnerships.
 
<TABLE>
<CAPTION>
                                AGGREGATE                                          AGGREGATE
                                  GROSS      AGGREGATE                              FEDERAL    AGGREGATE   1997
                                CARRYING    ACCUMULATED      RANGE OF                 TAX        1997       TAX
PARTNERSHIP                       VALUE     DEPRECIATION   DEPRECIATION   METHOD     BASIS       TAXES     RATE
- -----------                     ---------   ------------   ------------   ------   ---------   ---------   -----
<S>                             <C>         <C>            <C>            <C>      <C>         <C>         <C>
Consolidated Capital Growth
  Fund........................  $ 42,258      $22,630        5-19 yrs.     S/L      $23,838     $  587     1.20%
                                                             5-22 yrs.
Consolidated Capital
  Institutional Properties....   143,150       80,760        3-18 yrs.     S/L       67,337      1,663     2.67%
                                                             5-25 yrs.
Consolidated Capital
  Institutional
  Properties/2................    99,369       59,501        1-20 yrs.     S/L       51,694      1,196     2.37%
                                                             3-20 yrs.
Consolidated Capital
  Institutional
  Properties/3................    63,326       15,474        3-20 yrs.     S/L       56,544        860     1.37%
                                                             5-25 yrs.
Consolidated Capital
  Properties III..............    14,209        9,624        3-15 yrs.     S/L        8,259        215     1.72%
                                                             5-19 yrs.
Consolidated Capital
  Properties IV...............   130,653       98,490        5-15 yrs.     S/L       36,698      1,900     1.81%
                                                             5-40 yrs.
Consolidated Capital
  Properties V................    20,993       14,057        5-19 yrs.     S/L        9,074        460     5.08%
Consolidated Capital
  Properties IV...............     9,866        3,641        5-30 yrs.     S/L        5,558        113     4.42%
Shelter Properties I..........    19,927       13,590        5-30 yrs.     S/L        7,574        238     2.27%
                                                             5-37 yrs.
Shelter Properties II.........    24,806       15,996        5-35 yrs.     S/L        5,263        400     2.49%
                                                             5-38 yrs.
</TABLE>
 
                                       171
<PAGE>   178
 
<TABLE>
<CAPTION>
                                AGGREGATE                                          AGGREGATE
                                  GROSS      AGGREGATE                              FEDERAL    AGGREGATE   1997
                                CARRYING    ACCUMULATED      RANGE OF                 TAX        1997       TAX
PARTNERSHIP                       VALUE     DEPRECIATION   DEPRECIATION   METHOD     BASIS       TAXES     RATE
- -----------                     ---------   ------------   ------------   ------   ---------   ---------   -----
<S>                             <C>         <C>            <C>            <C>      <C>         <C>         <C>
Shelter Properties III........    25,880       14,229        5-36 yrs.     S/L        3,842        346     8.56%
                                                             5-32 yrs.
Shelter Properties IV.........    59,996       32,269        5-30 yrs.     S/L        7,981        777     1.86%
                                                             5-36 yrs.
Shelter Properties V..........    75,253       40,464        5-27 yrs.     S/L       13,006        806     2.02%
                                                             5-34 yrs.
Shelter Properties VI.........    52,209       24,751        5-27 yrs.     S/L       16,536        912     2.37%
                                                             5-35 yrs.
Shelter Properties VII........    21,447        9,906        5-29 yrs.     S/L        9,974        181     4.24%
                                                             5-39 yrs.
National Property Investors
  III.........................    35,484       23,509      5-27.5 yrs.     S/L       11,916        684     4.02%
National Property Investors
  4...........................    26,047       17,946      5-27.5 yrs.     S/L        3,809        467     4.32%
National Property Investors
  5...........................    29,093       20,711      5-27.5 yrs.     S/L        4,161        233     2.13%
National Property Investors
  6...........................    64,370       41,579      5-27.5 yrs.     S/L       15,384        454     3.35%
National Property Investors
  7...........................    45,426       24,079      5-27.5 yrs.     S/L       12,938        380     1.64%
National Property Investors
  8...........................    30,036       15,084        5-27 yrs.     S/L       12,921        451     4.07%
                                                             5-29 yrs.
Century Properties Fund XIV...    26,659       14,074        5-30 yrs.     S/L        7,524        306     2.06%
Century Properties Fund XV....    39,884       18,559        5-30 yrs.     S/L       19,480        735     2.70%
Century Properties XVI........    14,947        7,303        5-30 yrs.     S/L        2,452        246     2.76%
Century Properties XVII.......    66,141       30,323        5-30 yrs.     S/L       14,022        761     3.45%
Century Properties XVIII......    26,859        9,777        5-30 yrs.     S/L        8,581        473     2.09%
Century Properties XIX........    95,841       40,016        5-30 yrs.     S/L       26,644      1,136     1.95%
Century Properties Growth Fund
  XXII........................   130,980       52,090        5-30 yrs.     S/L       48,019      1,647     2.20%
Johnstown/Consolidated Income
  Partners....................    13,092        6,193        5-19 yrs.     S/L        7,629        162     2.17%
                                                             5-28 yrs.
Davidson Growth Plus, L.P.....    23,756        9,160        5-25 yrs.     S/L       21,165        448     2.69%
Multi-Benefit Realty Fund
  '87-1.......................    23,943       10,913        5-30 yrs.     S/L       16,121        343     3.51%
Fox Strategic Housing
  Income......................    21,364        6,416        5-30 yrs.     S/L       14,633        271     4.29%
Davidson Diversified Real
  Estate II, L.P. ............    44,544       21,263        5-25 yrs.     S/L       17,260        741     3.36%
Angeles Income Partners, Ltd.
  II..........................    35,800       24,462        5-20 yrs.     S/L        8,026        560     2.40%
Angeles Income Properties,
  Ltd. IV.....................    23,368       12,569        5-20 yrs.     S/L       14,515        190     1.39%
Angeles Income Properties,
  Ltd. 6......................    36,223        8,650        5-40 yrs.     S/L       35,166        821     3.69%
Angeles Opportunity Partners,
  Ltd.........................     8,294        1,914        5-40 yrs.     S/L        7,134        224     2.84%
Angeles Partners IX...........    36,860       22,719        5-19 yrs.     S/L       16,797        409     3.56%
                                                             5-25 yrs.
Angeles Partners XII..........   100,619       60,629        5-40 yrs.     S/L       38,099      2,156     3.10%
Davidson Income Real Estate,
  L.P.........................    24,287       10,149        5-25 yrs.     S/L       17,796        424     2.63%
HCW Pension Real Estate Fund..    15,391        4,892        5-25 yrs.     S/L       11,832        397     9.61%
                                                             5-40 yrs.
Woodhaven Associates, L.P. ...     5,288        3,162        5-30 yrs.     S/L          552         81     1.36%
</TABLE>
 
                                       172
<PAGE>   179
 
                                   MORTGAGES
 
     The following table sets forth the aggregate principal balance outstanding
on the mortgages of each IPT Partnership, the range of interest on and
maturities of such mortgages and the aggregate balance due at maturity as of
December 31, 1997.
 
<TABLE>
<CAPTION>
                                  AGGREGATE PRINCIPAL                                          AGGREGATE BALANCE
          PARTNERSHIP                 OUTSTANDING       RANGE OF INTEREST      MATURITIES       DUE AT MATURITY
          -----------             -------------------   -----------------   ----------------   -----------------
<S>                               <C>                   <C>                 <C>                <C>
Consolidated Capital Growth
  Fund..........................        $30,690           6.95-7.33%          11/03; 12/05          $30,690
Consolidated Capital
  Institutional Properties......         27,581             6.95%                12/05               24,200
Consolidated Capital
  Institutional Properties/2....         32,905           7.33-9.88%          06/00; 11/03           31,528
Consolidated Capital
  Institutional Properties/3....         30,525           6.95-7.33%          11/93; 12/05           30,525
Consolidated Capital Properties
  III...........................          4,200             7.33%                11/03                4,200
Consolidated Capital Properties
  IV............................         71,191          6.95-10.50%          12/98; 12/05           69,071
Consolidated Capital Properties
  V.............................         11,145          7.33-9.125%          10/03; 06/04           10,018
Consolidated Capital Properties
  VI............................          4,407             9.50%                05/01                4,512
Shelter Properties I............         11,470           7.33-7.60%          11/02; 11/03           10,888
Shelter Properties II...........          8,549             7.60%                11/02                7,370
Shelter Properties III..........          8,276           7.60-7.83%          11/02; 10/03            7,228
Shelter Properties IV...........         24,067             7.60%                11/02               20,669
Shelter Properties V............         31,513          7.33-10.375%         02/99; 12/16           23,787
Shelter Properties VI...........         26,790             7.60%                11/02               23,008
Shelter Properties VII..........         11,116           7.50-7.83%          03/01; 10/03           10,287
National Property Investors
  III...........................         24,414           7.13-9.87%          07/01; 01/08(a)        23,602
National Property Investors 4...         19,300             7.33%               11/01/03             19,300
National Property Investors 5...         11,704          8.50%-9.00%          02/01; 07/03           10,658
National Property Investors 6...         26,135             7.33%                11/03               26,135
National Property Investors 7...         20,284          7.33%-8.56%          02/01; 11/03           20,157
National Property Investors 8...         10,924          7.33%-9.85%          02/02; 11/03           10,611
Century Properties Fund XIV.....         16,067             9.88%                07/01               15,551
Century Properties Fund XV......         19,023           7.33-9.6%           07/01; 11/03           18,529
Century Properties Fund XVI.....          7,422             7.88%                01/06                6,618
Century Properties Fund XVII....         37,334          7.875-8.630% (b)     07/99; 07/05           39,574
Century Properties Fund XVIII...         18,550          7.36%-8.25%          01/99; 10/04           17,605
Century Properties Fund XIX.....         60,900           7.33-8.33%          01/03; 01/06           56,462
Century Properties Growth Fund
  XXII..........................         72,603           7.33-7.93%  (c)     12/99; 02/06           66,036
Johnstown/Consolidated Income
  Partners......................          2,325             7.33%                11/03                2,325
Davidson Growth Plus, L.P. .....         12,270           7.60-7.83%          11/02; 10/03           10,750
Multi-Benefit Realty Fund
  87-1..........................         12,285           7.33-8.30%          10/00; 11/03           12,075
Fox Strategic Housing Income
  Partners......................          7,836             10.9%                08/98                8,713
Davidson Diversified Real Estate
  II, L.P. .....................         26,807                       (d)     1/00; 12/09            22,185
</TABLE>
 
                                       173
<PAGE>   180
 
<TABLE>
<CAPTION>
                                  AGGREGATE PRINCIPAL                                          AGGREGATE BALANCE
          PARTNERSHIP                 OUTSTANDING       RANGE OF INTEREST      MATURITIES       DUE AT MATURITY
          -----------             -------------------   -----------------   ----------------   -----------------
<S>                               <C>                   <C>                 <C>                <C>
Angeles Income Properties, Ltd.
  II............................         18,197           7.33-7.83%             11/03               16,812
Angeles Income Properties, Ltd.
  IV............................         15.221             9.75%                10/06               12,955
Angeles Income Properties, Ltd.
  6.............................         23,374          7.33-10.07%           9/99; 7/19            17,826
Angeles Opportunity Properties,
  Ltd. .........................          5,432           7.33-7.83%          10/03; 11/03            5,293
Angeles Partners IX.............         19,768          7.33-10.13%          8/02; 11/03            18,258
Angeles Partners XII............         72,105           7.83-10.5%          01/02; 05/05           63,822
Davidson Diversified Real
  Estate, L.P. .................         12,011           7.33-7.83           11/02; 10/03           11,278
HCW Pension Real Estate Fund....             --               --                   --                    --
Woodhaven Associates, L.P. .....          3,787             10.5%                4/1/24                  --
</TABLE>
 
- -------------------------
 
(a) One property (304 units) has a mortgage that matured on September 1, 1996,
    and an extension was obtained through December 31, 1997. The partnership
    continues to pay debt service to the lender while alternate financing is
    arranged.
 
(b) One property has zero coupon note; discounted at an effective interest rate
    of 10.247%.
 
(c) One property with a principal balance of $2,840,000 bears interest at LIBOR
    plus 3.75%; the other properties range in interest from 7.33% to 7.93%.
 
(d) Adjusted rate based on 75% of interest rate on new-issue long-term A-rate
    utility bonds as determined on first day of each calendar year. The rate at
    December 31, 1997 was 5.385%. Rates on the other properties ranged from
    7.50% to 10.125%.
 
LEGAL PROCEEDINGS
 
  Bond Purchase LLC Litigation/Arbitrations
 
     In 1997 and 1998, Bond Purchase LLC, which alleges that it is a unitholder
in each partnership it has sued, commenced six separate lawsuits in state court
in Missouri against six partnerships that it alleges were managed and/or
controlled by IFG (and, its successor, AIMCO) or affiliates of IFG. These six
partnerships are Fox Strategic Housing Income Partners, Angeles Opportunity,
Angeles Partners IX, Angeles Partners XII, Shelter Realty Properties VII, and
United Investors Growth II LP. Bond Purchase LLC also commenced arbitration
proceedings before the American Arbitration Association in San Francisco against
seven partnerships, the partnership agreements of which have mandatory
arbitration clauses. Those partnerships are Consolidated Capital Institutional
Properties I, Consolidated Capital Institutional Properties II, Consolidated
Capital Institutional Properties III, Consolidated Capital Institutional
Properties IV, Johnstown/Concap Income Partners LLP, and Multi-Benefit Realty
Fund '87-I, and Concap Equities, Inc., as general partner. Initially, in both
the lawsuits and the arbitration, Bond Purchase LLC asserted claims of breach of
contract and breach of fiduciary duty relating to the alleged refusal of the
general partners to provide lists of limited partners in each partnership to
Bond Purchase LLC. Bond Purchase LLC sought equitable relief and attendant
unspecified damages. In late November and early December 1998, Bond Purchase LLC
filed applications with the
 
                                       174
<PAGE>   181
 
state court in Missouri and before the arbitral panel seeking to add parties and
causes of action in the proceedings. In each instance, Bond Purchase LLC is
seeking to add IFG, IPT, AIMCO, and certain alleged affiliates that made tender
offers for units in the subject partnerships to the lawsuits. In addition, Bond
Purchase LLC is seeking to add additional claims to the lawsuits and the
arbitral proceedings for tortious interference with business expectancy,
intentional interference with contract, conspiracy to interfere with business
expectancy and violations of the California Cartwright Act (the California state
anti-trust law). To date, Bond Purchase LLC has filed formal motions to amend in
the Fox Strategic Housing Income Partners litigation in Missouri and, as to all
seven partnerships in the arbitration.
 
     In an order dated January 8, 1999, the arbitration panel granted Bond
Purchase LLC's application to add claims but denied its application to add
parties. In light of that ruling and issues relating to document discovery
raised by Bond Purchase LLC, the hearing date has been continued indefinitely.
The defendants currently are undertaking applications to challenge the
arbitrability of the California Cartwright Act and related tort claims under the
arbitration agreements between the parties.
 
  Nuanes Litigation
 
     On March 24, 1998, an action entitled Rosalie Nuanes, et al. v. Insignia
Financial Group, Inc., et al. was filed in the Superior Court of the State of
California for the County of San Mateo, in which the plaintiffs named as
defendants, among others, IPT, IPLP and IFG. The complaint purports to assert
claims on behalf of the limited partners of 55 of the Controlled Partnerships
and derivatively on behalf of the Controlled Partnerships named in the
complaint, which are also named as nominal defendants. The complaint challenges
(i) the acquisition of interests in the general partners of the named Controlled
Partnerships by IFG and its affiliates, (ii) various past tender offers
commenced by affiliates of IFG and IPT to acquire units of limited partner
interest in the Controlled Partnerships named in the complaint, (iii) the
management of the named Controlled Partnerships by IFG and its affiliates and
(iv) the IFG Merger.
 
     The complaint seeks monetary damages and equitable relief, including the
dissolution of the Controlled Partnerships named in the complaint. IPT and AIMCO
believe that the allegations contained in the complaint are without merit and
intend to vigorously contest this action.
 
  Everest Litigation
 
     On July 30, 1998, an action entitled Everest Properties, LLC, et al. v.
Insignia Financial Group, Inc., et al., was filed in the Superior Court of the
State of California, County of Los Angeles. Plaintiffs are Everest Properties,
LLC, Everest Properties II, LLC, KM Investments, LLC, KH Financial, Inc. and
Millennium Investors, LLC. The complaint asserts eleven causes of action,
including breach of contract and fiduciary duty, tortious interference with
prospective economic advantage, interference with contract, unfair business
practices, violations of California's Cartwright Act, and the respective Limited
Partnership Acts of California, Delaware, South Carolina, Massachusetts and
Missouri, under which the relevant limited partnerships are organized. The
complaint names, among others, IFG, IPT, IPLP, three wholly-owned subsidiaries
of IPT (Angeles
 
                                       175
<PAGE>   182
 
Realty Corporation, Angeles Realty Corporation II and ConCap Equities, Inc.) and
12 other entities alleged to be managing partners of the defendant limited
partnerships.
 
     The action involves 44 of the Controlled Partnerships (each named as a
defendant) in which the plaintiffs own interests and which IFG and, its
successor AIMCO, or its affiliates allegedly manage or control (the "Subject
Partnerships"). The plaintiffs allege that they have requested from, but have
been denied by, each of the Subject Partnerships their respective lists of
limited partners for the purpose of making tender offers to purchase up to 4.9%
of the units of limited partner interest of each of the Subject Partnerships.
The complaint also alleges that subsequent to denying plaintiffs' requests,
certain of the defendants made tender offers to purchase units of limited
partner interest in many of the Subject Partnerships, with the result that
plaintiffs have been deprived of the benefits they would have realized from
ownership of the additional units. Plaintiffs estimate compensatory damages to
exceed $15 million. Additionally, plaintiffs are seeking punitive and treble
damages based on their assertion that the defendants have willfully refused to
turn over the limited partner lists. IPT and AIMCO intend to vigorously contest
this action. On December 11, 1998, the court heard the motion. The court
determined to permit the plaintiff an opportunity to amend the complaint to
attempt to address the issues presented by the motion, and expressly ruled that
defendants would have an opportunity to review their motion after the filing of
the amended complaint. That amended complaint was served and filed on or about
January 4, 1999. The response of the defendants is scheduled to be filed on or
about February 1, 1999. In the interim, the parties have been discussing a
possible resolution of the action. If the action cannot be resolved, defendants
intend to vigorously oppose the claims.
 
  Kirsch Litigation
 
     An action was filed against AMIT, Katten Muchin Zavis and David M. Bass in
Superior Court of the State of California by Jules P. Kirsch on December 26,
1996 alleging that the named defendants had maliciously prosecuted Mr. Kirsch in
certain earlier litigation commenced by AMIT in 1995, which alleged the purchase
by Jules P. Kirsch and several other individuals and corporations of AMIT Class
A shares through the use of "inside information" and for violations of Sections
13(d) and 14(a) of the Exchange Act and the rules and regulations promulgated
thereunder.
 
     In June 1996, AMIT settled the prior claims with all defendants, except for
Jules P. Kirsch and voluntarily dismissed the claims against Jules P. Kirsch.
The action commenced by Jules P. Kirsch seeks unspecified amounts for
compensatory and punitive damages.
 
     On January 5, 1998, summary judgment was entered in favor of AMIT and
against Mr. Kirsch on all claims in the malicious prosecution action. On January
30, 1998 Mr. Kirsch filed an appeal of the summary judgment ruling.
 
                                       176
<PAGE>   183
 
           IPT FORMATION TRANSACTIONS AND CERTAIN RECENT DEVELOPMENTS
 
IPT FORMATION TRANSACTIONS
 
  Predecessors of IPT and IPLP
 
     In January 1996, IFG organized Insignia Properties Corporation, a Delaware
corporation ("IPC"), and Insignia NPI, L.L.C., a Delaware limited liability
company ("Insignia-NPI"), for the purpose of completing the NPI Transaction (as
defined below). IPC was a wholly-owned subsidiary of IFG, and Insignia-NPI was
owned 99% by IPC and 1% by another wholly-owned subsidiary of IFG. IPT is the
successor by merger to IPC, and IPLP is the successor by merger to Insignia-NPI.
 
  The NPI Transaction
 
     In January 1996, IPC and Insignia-NPI (and certain other affiliates of IFG)
completed a series of related transactions (collectively, the "NPI Transaction")
with National Properties Investors, Inc. ("NPI") and certain of its affiliates,
pursuant to which:
 
     (1) IFGP Corporation, a wholly-owned subsidiary of IFG ("IFGP"), acquired
     (i) all of the outstanding stock of NPI, which in turn owned controlling
     equity interests in various entities that controlled the sole or managing
     general partners of the following IPT Partnerships: National Property
     Investors II, National Property Investors III, National Property Investors
     4, National Property Investors 5, National Property Investors 6, National
     Property Investors 7, National Property Investors 8, Century Properties
     Fund XIV, Century Properties Fund XV, Century Properties Fund XVI, Century
     Properties Fund XVII, Century Properties Fund XVIII, Century Properties
     Fund XIX, Century Properties Fund XX, Century Properties Growth Fund XXII,
     Century Pension Income Fund XXIII, Century Pension Income Fund XXIV and Fox
     Strategic Housing Income Partners (collectively, the "NPI Partnerships");
     and (ii) general partner interests in 83 private real estate limited
     partnerships and ten other public real estate partnerships which are in the
     process of dissolving.
 
     (2) Insignia-NPI acquired limited partner interests in certain of the NPI
     Partnerships.
 
     (3) Other affiliates of IFG acquired all of the outstanding equity
     interests in NPI-AP Management, L.P., a property management company which
     provides property management services to most of the NPI Partnerships as
     well as other public and private real estate partnerships.
 
     (4) IFG, IPC and Insignia-NPI entered into an agreement (the "NPI
     Indemnification Agreement") with the sellers of certain of the entities
     acquired by IFG and its affiliates in the NPI Transaction, pursuant to
     which (i) such sellers agreed to indemnify IFG, IPC, Insignia-NPI and their
     affiliates for certain losses they suffer which occurred during or are
     attributable to the period prior to the NPI Transaction, and (ii) IFG, IPC
     and Insignia-NPI agreed to reimburse those sellers for certain losses they
     suffer which occurred or are attributable to the period after the NPI
     Transaction.
 
                                       177
<PAGE>   184
 
     (5) IFG and Insignia-NPI entered into an agreement (the "Fox
     Indemnification Agreement") with the limited partners (the "Fox
     Principals") of an entity which is the non-managing general partner of an
     entity that controls the managing general partners of certain of the NPI
     Partnerships. Pursuant to the Fox Indemnification Agreement, IFG and
     Insignia-NPI agreed to indemnify the Fox Principals for 25% of some (but
     not all) amounts that the Fox Principals may be required to contribute
     (directly or indirectly) to the capital of such NPI Partnerships in the
     future as a result of capital account deficit restoration obligations of
     the general partners of such NPI Partnerships which arose or relate to a
     time prior to the NPI Transaction.
 
     (6) Insignia-NPI entered into an agreement (the "Fox Reimbursement
     Agreement") with the Fox Principals pursuant to which Insignia-NPI agreed
     to reimburse the Fox Principals for any amounts received by Insignia-NPI in
     respect of the limited partner interests in certain of the NPI
     Partnerships, which amounts result from future capital contributions made
     by or on behalf of the Fox Principals to those NPI Partnerships.
 
     (7) IFG assumed certain commitments (the "NPI Loan Commitments")
     established prior to the NPI Transaction, pursuant to which IFG agreed to
     lend, under certain conditions, up to $500,000 to certain of the NPI
     Partnerships (not to exceed $2.6 million in the aggregate) and $150,000 to
     certain other NPI Partnerships (not to exceed $6 million in the aggregate)
     at interest rates not to exceed the prime rate plus 2%.
 
     (8) In June 1996, IPC acquired all of the outstanding capital stock of Fox
     Capital Management Corporation, which is a co-general partner of the
     entities that control the general partner of the NPI Partnerships.
 
          To finance its portion of the NPI Transaction, Insignia-NPI borrowed
     approximately $72.8 million from IFG (the "NPI Loan"). IFG subsequently
     assigned all of its rights under the NPI Loan to its wholly-owned financing
     subsidiary, ICC.
 
  Formation of IPT and IPLP
 
     IFG organized IPT and IPLP in May 1996, and in December 1996 the following
formation transactions were effected:
 
     (1) IPC was merged with IPT, with IPT being the surviving entity. As a
     result of that merger, IPT succeeded by operation of law to all of the
     assets and liabilities of IPC (including IPC's rights and obligations under
     the NPI Indemnification Agreement).
 
     (2) Insignia-NPI was merged with IPLP, with IPLP being the surviving
     entity. As a result of that merger, IPLP succeeded by operation of law to
     all of the assets and liabilities of Insignia-NPI (including the limited
     partner interests in the NPI Partnerships acquired in the NPI Transaction,
     the NPI Loan and Insignia-NPI's rights and obligations under the NPI
     Indemnification Agreement, the Fox Indemnification Agreement and the Fox
     Reimbursement Agreement).
 
     (3) IPT assumed IPLP's obligations under the NPI Loan, in exchange for
     which IPLP issued 7,283,780 IPLP OP Units to IPT. IPT in turn issued
     7,283,780 IPT Common Shares to ICC in full satisfaction of the NPI Loan.
 
                                       178
<PAGE>   185
 
     (4) IPT assumed IFG's obligations under the NPI Indemnification Agreement
     and under the NPI Loan Commitments. As of the date of this Information
     Statement/ Prospectus, (i) there are no amounts outstanding related to the
     NPI Loan Commitments, and (ii) no indemnification claims have been made
     under the Indemnification Agreement (and IPT does not believe that any
     circumstances are likely to arise which would result in such a claim).
 
     (5) IPT issued 3,271,547 IPT Common Shares to IFG in respect of IFG's 100%
     ownership interest in IPT at the time.
 
     (6) IFG caused NPI to assign to IPT all of NPI's equity interests in the
     entities that controlled the sole or managing general partners of the NPI
     Partnerships, valued (in the aggregate) at approximately $1 million, in
     exchange for which IPT issued 100,287 IPT Common Shares to NPI.
 
     (7) IFG caused IFGP to assign to IPT all of IFGP's equity interests in the
     entities that comprised the general partners of Shelter Properties I,
     Shelter Properties II, Shelter Properties III, Shelter Properties IV,
     Shelter Properties V, Shelter Properties VI and Shelter Properties VII
     (collectively the "Shelter Properties Partnerships"), valued (in the
     aggregate) at approximately $455,000, in exchange for which IPT issued
     45,510 IPT Common Shares to IFGP.
 
     (8) MAE assigned to IPT all of the equity interests in the entities that
     comprised the general partners of the Consolidated Capital Properties III,
     IV, V and VI, Consolidated Capital Growth Fund, Consolidated Capital
     Institutional Properties, Consolidated Capital Institutional Properties/2,
     Consolidated Capital Institutional Properties/3 (collectively the
     "Consolidated Capital Partnerships") and Davidson Growth Plus, L.P., valued
     (in the aggregate) at approximately $4.7 million, in exchange for which IPT
     issued 466,807 IPT Common Shares to MAE.
 
     (9) IFG and certain of its affiliates contributed to IPLP limited partner
     interests in certain of the Controlled Partnerships and equity interests in
     entities that owned limited partner interests in certain of the Controlled
     Partnerships, valued (in the aggregate) at approximately $84 million, in
     exchange for which IPLP issued 8,399,499 IPLP OP Units to IFG.
 
     (10) IFG purchased 6,405 IPT Common Shares for $64,050 in cash. At the
     direction of IFG, those IPT Common Shares were issued to and in the name of
     certain employees and affiliates of IFG as bonus compensation. These shares
     were purchased and issued, in part, in order to satisfy the "100
     shareholders" REIT requirement under the Code.
 
     (11) Six executive officers and directors purchased an aggregate of 4,700
     IPT Common Shares for $47,000 in cash. At the direction of those executive
     officers and directors, certain of those shares were issued to and in the
     name of members of their respective immediate families. These shares were
     purchased and issued, in part, in order to satisfy the "100 shareholder"
     REIT requirement under the Code.
 
     (12) IPLP entered into an option agreement (the "Shelter IV Option
     Agreement") with certain affiliates of IFG pursuant to which those
     affiliates of IFG granted IPLP an option (the "Shelter IV Option") to
     acquire on or before December 31, 1997,
 
                                       179
<PAGE>   186
 
     11,259 units of limited partner interest in Shelter Properties IV Limited
     Partnership in exchange for the issuance of 714,815 IPLP OP Units to IFG.
 
     (13) IPT, IPLP and IFG entered into an advisory agreement (the "Advisory
     Agreement") pursuant to which IFG agreed to provide a broad range of
     services to IPT, including executive advisory, investment advisory,
     acquisition, administrative, financial and accounting services, for, among
     other things, the payment of an annual advisory fee.
 
CERTAIN RECENT DEVELOPMENTS
 
  Termination of Advisory Structure
 
     From its formation in December 1996 until February 17, 1998, IPT operated
as an externally advised REIT, and IFG served as the advisor to IPT pursuant to
an Advisory Agreement. The Advisory Agreement was terminated in its entirety on
February 17, 1998 (retroactive to January 1, 1998), without penalty to IPT, IPLP
or IFG. Certain provisions which had been contained in the Advisory Agreement
regarding the property management of the properties then or thereafter
controlled by IPT and the provision of partnership administration services to
the Controlled Partnerships and certain other business entities controlled by
IPT in the future, were incorporated into the IPLP Partnership Agreement
effective as of the same date. See "The IPLP Partnership Agreement -- Property
Management and Contract Loss Fee" and "The IPLP Partnership Agreement --
Partnership Administration Services." Also effective upon the termination of the
Advisory Agreement, IPT, IPLP and IFG entered into the Acquisition and
Disposition Services Agreement, which also incorporates some of the provisions
regarding real estate securities acquisition and disposition services previously
contained in the Advisory Agreement. See "Acquisition and Disposition Services
Agreement." Upon the termination of the Advisory Agreement, the twelve employees
of IFG who prior to that time had worked almost exclusively on matters
concerning IPT became employees of IPT. Also effective on that date, certain key
employees of IFG received an aggregate of 510,000 restricted IPT Common Shares,
which were to vest ratably over a five-year period.
 
  MAE GP Merger
 
     Effective as of February 25, 1998, MAE GP Corporation ("MAE GP"), which
until then was a wholly-owned subsidiary of MAE, was merged with and into IPT,
with IPT surviving the merger (the "MAE GP Merger"). As consideration for the
MAE GP Merger, IPT issued 344,609 IPT Common Shares to MAE valued for purposes
of the MAE GP Merger at $10.53 per share. MAE GP owned or controlled equity
interests in entities which comprised or controlled the general partners of 29
public and 61 private real estate limited partnerships (collectively, the "MAE
Partnerships"), nine of which are included in the IPT Partnerships. In
connection with the MAE GP Merger, all of the Class B common shares of
beneficial interest of AMIT, which were until then owned by MAE GP, were
transferred by dividend to MAE prior to the MAE GP Merger.
 
  Transfers of Assets to IPLP
 
     In connection with the MAE GP Merger, on February 17, 1998, IPLP purchased
certain assets from MAE for approximately $596,000 in cash. The assets purchased
from
 
                                       180
<PAGE>   187
 
MAE consisted of (i) a 99% limited partner interest in Insignia Jacques Miller,
L.P. ("IJM"), which in turn owned non-controlling equity interests in entities
that comprise or control the general partners of 30 of the MAE Partnerships and
various notes receivable (the 1% general partner interest in IJM was acquired by
IPT from MAE GP in the MAE GP Merger), and (ii) a 6.557% limited partner
interest in Buccaneer Trace Limited Partnership, which owns a 208-unit
residential apartment complex located in Savannah, Georgia.
 
     Also in connection with the MAE GP Merger, on February 17, 1998, IFG
contributed all of the limited partner interests it owned in the MAE
Partnerships to IPLP in exchange for IPLP OP Units. The value of the interests
contributed was approximately $5.4 million, for which IFG received 518,528 IPLP
OP Units (based on a value of $10.53 per unit).
 
  Winthrop Transactions
 
     On October 27, 1997, IFG consummated a transaction with Winthrop Financial
Associates, A Limited Partnership ("WFA") and certain affiliates of WFA whereby
IFG acquired, among other things, units of limited partner interest, or the
right to acquire units of limited partner interests, (the "Winthrop Units") in
two public and 11 private real estate limited partnerships (the "Winthrop
Partnerships"), which own, in the aggregate, 29 properties containing
approximately 12,100 residential apartment units, and the right to receive
certain asset management, investor services and partnership management fees from
ten of the Winthrop Partnerships which totaled approximately $987,000 in 1996
(the base upon which the purchase price paid by IFG was calculated) (the
"Winthrop Fees," and together with the Winthrop Units, the "Winthrop
Interests").
 
     The Winthrop Partnerships are controlled by WFA. In connection with the
foregoing transaction, MAERIL, Inc. which is owned by IPT, acquired an associate
general partner interest in WFA, as a result of which MAERIL, Inc. has the power
to effectively control all property management decisions relating to the
properties owned by six of the Winthrop Partnerships. IFG also acquired all of
the newly-issued shares of Class B common stock of First Winthrop Corporation
("FWC"), which immediately prior thereto was a wholly-owned subsidiary of WFA,
as a result of which IFG has the right to appoint the two directors of FWC, who
in turn have the power to effectively control all property management decisions
relating to the properties owned by the other seven Winthrop Partnerships. In
addition, MAERIL, Inc. and IFG caused the respective general partners of the
Winthrop Partnerships to subcontract with IFGP, to perform the asset management
and other services in respect of which the Winthrop Fees are payable on behalf
of such general partners, in exchange for which IFGP was assigned the rights to
receive the Winthrop Fees.
 
  Property Acquisition
 
     On January 28, 1998, IPT acquired a 168-unit apartment complex located in
Pensacola, Florida known as the Raintree Apartments. The aggregate purchase
price paid for the Raintree Apartments was approximately $3.7 million,
approximately $2.7 million of which was debt financed on a non-recourse basis.
 
                                       181
<PAGE>   188
 
  Tender Offers
 
     On August 28, 1997, IPLP Acquisition I LLC ("IPLP Acquisition") commenced
tender offers to purchase units of limited partner interest in the following IPT
Partnerships: Consolidated Capital Properties IV, Century Properties Fund XVII,
Century Properties Fund XIX, Century Properties Growth Fund XXII, Fox Strategic
Housing Income Partners and National Property Investors 4. These tender offers
expired on October 6, 1997, and IPLP Acquisition accepted for purchase all units
validly tendered and not withdrawn. Pursuant to these tender offers, IPLP
Acquisition acquired 29,617.5 (or approximately 8.64%) of the limited partner
units in Consolidated Capital Properties IV, 3,369.5 (or approximately 4.49%) of
the limited partner units in Century Properties Fund XVII, 4,892 (or
approximately 5.48%) of the limited partner units in Century Properties Fund
XIX, 5,459 (or approximately 6.59%) of the limited partner units in Century
Properties Fund XXII, 3,919 (or approximately 15.01%) of the limited partner
units in Fox Strategic Housing Income Partners and 4,452 (or approximately
7.42%) of the limited partner units in National Property Investors 4, for a
total cost (excluding expenses) of approximately $9 million.
 
     On October 30, 1997, Reedy River Properties, L.L.C., a Delaware limited
liability company and a wholly-owned subsidiary of IPLP ("Reedy River"),
commenced tender offers to purchase units of limited partner interest in
Consolidated Capital Institutional Properties and Consolidated Capital
Institutional Properties/2. These tender offers expired on December 15, 1997,
and Reedy River accepted for purchase all units validly tendered and not
withdrawn. Pursuant to these tender offers, Reedy River acquired 28,900.5 (or
approximately 14.52%) of the limited partner units in Consolidated Capital
Institutional Properties and 169,105.3 (or approximately 18.60%) of the limited
partner units in Consolidated Capital Institutional Properties/2, for a total
cost (excluding expenses) of approximately $18 million.
 
     On various dates in December 1997, Madison River Properties, L.L.C., a
Delaware limited liability company and a wholly-owned subsidiary of IPLP
("Madison River"), commenced tender offers to purchase units of limited partner
interests in Multi-Benefit Realty Fund 87-1, Century Properties Fund XIV,
Century Properties Fund XV, Century Properties Fund XVIII, Consolidated Capital
Growth Fund, Consolidated Capital Institutional Properties/3, Consolidated
Capital Properties V, Johnstown/Consolidated Income Partners and Shelter
Properties VII Limited Partnership. These tender offers expired on various dates
in January and February of 1998, and Madison River accepted for purchase all
units validly tendered and not withdrawn. Pursuant to these tender offers,
Madison River acquired 21,457 (or approximately 22.29%) of the Class A limited
partner units in Multi-Benefit Realty Fund 87-1, 13,822 (or approximately
18.39%) of the Class B limited partner units in Multi-Benefit Realty Fund 87-1,
2,925.57 (or approximately 4.52%) of the limited partner units in Century
Properties Fund XIV, 4,222 (or approximately 4.69%) of the limited partner units
in Century Properties Fund XV, 5,259.5 (or approximately 7.01%) of the limited
partner units in Century Properties Fund XVIII, 2,690 (or approximately 5.47%)
of the limited partner units in Consolidated Capital Growth Fund, 46,775.4 (or
approximately 12.21%) of the limited partner units in Consolidated Capital
Institutional Properties/3, 43,795.8 (or approximately 24.39%) of the limited
partner units in Consolidated Capital Properties V, 14,061.5 (or approximately
10.92%) of the limited partner units in Johnstown/Consolidated Income Partners,
and
 
                                       182
<PAGE>   189
 
2,180 (or approximately 12.57%) of the limited partner units in Shelter
Properties VII, for a total cost (excluding expenses) of approximately $10
million.
 
     On various dates in April 1998, Broad River Properties, L.L.C., a Delaware
limited liability company and a wholly-owned subsidiary of IPLP ("Broad River"),
commenced tender offers to purchase units of limited partner interest in Angeles
Partners IX, Angeles Partners XII, and Angeles Income Properties, Ltd. II. These
tender offers expired on various dates in May and June of 1998, and Broad River
accepted for purchase all units validly tendered and not withdrawn. Pursuant to
these tender offers, Broad River acquired 2,529 (or approximately 12.66%) of the
limited partner units in Angeles Partners IX, 8,002 (or approximately 17.89%) of
the limited partner units in Angeles Partners XII, and 8,908 (or approximately
8.93%) of the limited partner units in Angeles Income Properties, Ltd. II, for a
total cost (excluding expenses) of approximately $6 million.
 
     On July 21, 1998, Cooper River, a Delaware limited liability company and a
wholly-owned subsidiary of IPLP, commenced tender offers to purchase units of
limited partner interest in Shelter Properties I, Shelter Properties II, Shelter
Properties IV, Shelter Properties V, Shelter Properties VI and Shelter
Properties VII. These tender offers expired on August 17, 1998, and Cooper River
accepted for purchase all units validly tendered and not withdrawn. Pursuant to
these tender offers, Cooper River acquired 1,145 (or approximately 17.6%) of the
limited partner units of Shelter Properties I, 1,958.50 (or approximately 7.1%)
of the limited partner units of Shelter Properties II, 3,685 (or approximately
7.4%) of the limited partner units of Shelter Properties IV, 2,725 (or
approximately 5.2%) of the limited partner units of Shelter Properties V, 3,364
(or approximately 7.9%) of the limited partner units of Shelter Properties VI
and 1,450 (or approximately 8.4%) of the limited partner units of Shelter
Properties VII, for a total cost (excluding expenses) of approximately $7.1
million.
 
     On July 30, 1998, Cooper River commenced tender offers to purchase up to
50,000 units of limited partner interest in Consolidated Capital Institutional
Properties for a purchase price of $415 per unit in cash, 300,000 units of
limited partner interest in Consolidated Capital Institutional Properties/2 for
a purchase price of $50 per unit in cash, 125,000 units of limited partner
interest in Consolidated Capital Institutional Properties/3 for a purchase price
of $100 per unit in cash, 75,000 units of limited partner interest in
Consolidated Capital Properties III for a purchase price of $60 per unit in cash
and 40,000 units of limited partner interest in Consolidated Capital Properties
V for a purchase price of $33 per unit in cash.
 
     On August 12 and 13, 1998, Cooper River commenced tender offers to purchase
up to 30,000 units of limited partner interest in Angeles Income Properties,
Ltd. II for a purchase price of $175 per unit in cash, 30,000 units of limited
partner interest in Angeles Income Properties, Ltd. III for a purchase price of
$75 per unit in cash, 50,000 units of limited partner interest in Angeles Income
Properties, Ltd. IV for a purchase price of $75 per unit in cash, 20,000 units
of limited partner interest in Angeles Income Properties, Ltd. 6 for a purchase
price of $225 per unit in cash, 5,000 units of limited partner interest in
Angeles Partners IX for a purchase price of $330 per unit in cash, 8,000 units
of limited partner interest in Angeles Partners X for a purchase price of $150
per unit in cash, 18,000 units of limited partner interest in Angeles Partners
XI for a purchase price of $150 per unit in cash, 12,000 units of limited
partner interest in Angeles Partners XII for a
 
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purchase price of $600 per unit in cash, and 5,000 units of limited partner
interest in Angeles Opportunity Properties, Ltd. for a purchase price of $325
per unit in cash.
 
     On August 27, 1998, Cooper River commenced tender offers to purchase up to
140 units of limited partner interest in Davidson Diversified Real Estate I, LP
for a purchase price of $4,000 per unit in cash, 400 units of limited partner
interest in Davidson Diversified Real Estate II, LP for a purchase price of
$6,000 per unit in cash, 300 units of limited partner interest in Davidson
Diversified Real Estate III, LP for a purchase price of $3,000 per unit in cash,
9,000 units of limited partner interest in Davidson Income Real Estate, LP for a
purchase price of $375 per unit in cash, and 10,000 units of limited partner
interest in Davidson Growth Plus, LP for a purchase price of $400 per unit in
cash.
 
     On September 23, 1998, Cooper River commenced tender offers to purchase up
to 7,500 units of Class A limited partner interest in Multi-Benefit Realty Fund
87-1 for a purchase price of $55 per unit in cash, 11,000 units of Class B
limited partner interest in Multi-Benefit Realty Fund 87-1 for a purchase price
of $38 per unit in cash, and 4,000 units of limited partner interest in HCW
Pension Real Estate Fund Limited Partnership for a purchase price of $475 per
unit in cash.
 
     On September 29, 1998, Cooper River commenced tender offers to purchase up
to 33,000 units of limited partner interest in Century Pension Income Fund XXIV
for a purchase price of $85 per unit in cash, 11,500 units of limited partner
interest in VMS Investors First-Staged Equity LP II for a purchase price of $55
per unit in cash, and 20,000 units of limited partner interest in Drexel Burnham
Lambert Real Estate Associates III for a purchase price of $75 per unit in cash.
 
     In the fourth quarter of 1998, the outstanding tender offers of Cooper
River expired or were terminated in accordance with their terms.
 
  Shelter IV Option
 
     In June 1997 the Shelter IV Option Agreement was amended to make the 4,263
units of limited partner interest in Shelter Properties IV acquired by IFG in
the High River transaction described below also subject to the Shelter IV
Option. In December 1997, the Shelter IV Option Agreement was amended again to
make 488 units of limited partner interest acquired by IFG in various
transactions between June and December 1997 subject to the Shelter IV Option.
IPLP exercised the Shelter IV Option effective as of midnight on December 31,
1997. As a result of that exercise, IPLP acquired a total of 16,010 units of
limited partner interest in Shelter Properties IV Limited Partnership in
exchange for a total of 1,016,448 IPLP OP Units issued to IFG.
 
  Private Offerings
 
     Commencing in May 1997 and ending in August 1997, IPT offered and sold an
aggregate of 5,231,000 IPT Common Shares, at a purchase price of $10.00 per
share, to 44 investors (12 of whom are executive officers of IPT and/or IFG)
pursuant to a private offering, and, in an unrelated transaction in October
1997, IPT sold 1,000,000 IPT Common Shares, also at a purchase price of $10.00
per share, to a single private investor (collectively, the "Private Offerings").
The Private Offerings were each made in reliance
 
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upon exemptions from the registration requirements of the Securities Act. IPT
contributed the gross proceeds of the Private Offerings to IPLP in exchange for
6,231,000 IPLP OP Units (all of the expenses of the Private Offerings were borne
by IPLP). The net proceeds of the Private Offerings of approximately $62 million
have been and will be used by IPLP for general purposes, principally
acquisitions of direct and indirect interests in multifamily residential real
estate.
 
  High River Transactions
 
     In June 1997, IFG entered into an agreement with High River Limited
Partnership ("High River") pursuant to which IFG acquired an aggregate of 23,581
units of limited partner interest in the Shelter Properties Partnerships for an
aggregate purchase price $15,500,000. As a result of those purchases, various
buy/sell agreements between IFG and High River relating to the transferred
interests and the general partner interests in those partnerships were
terminated. IFG then assigned all of those units (other than 4,263 units in
Shelter Properties IV) to IPT, in exchange for which IPT issued 1,109,259 IPT
Common Shares to IFG. IPT in turn assigned those units to IPLP, in exchange for
which IPLP issued 1,109,259 IPLP OP Units to IPT.
 
     Also in June 1997, IFG entered into a separate agreement with High River
pursuant to which IFG (i) directly acquired 25 units of limited partner interest
in Davidson Growth Plus, L.P. from an affiliate of High River and (ii)
indirectly acquired 1,244 units of limited partner interest in Davidson Growth
Plus, L.P. through the acquisition from High River of a 50% equity interest in
DGP Acquisition, L.L.C. (a limited liability company formed by IFG and High
River in 1995 for the purpose of acquiring units of limited partner interests in
Davidson Growth Plus, L.P. pursuant to a tender offer), for an aggregate
purchase price of approximately $525,000. As a result of those purchases,
various buy/sell agreements between IFG and High River relating to the
transferred interests and the managing general partner interest in Davidson
Growth Plus, L.P. were terminated. IFG then assigned all of those units and the
50% interest in DGP Acquisition, L.L.C. to IPT, in exchange for which IPT issued
53,192 IPT Common Shares to IFG. IPT in turn assigned those units and the 50%
interest to IPLP, in exchange for which IPLP issued 53,192 IPLP OP Units to IPT.
 
  Realty Transaction
 
     In June 1998, the AIMCO Operating Partnership entered into seven separate
Purchase and Sale Agreements with affiliates of Realty Investment Co. to acquire
seven multifamily residential properties from an unaffiliated third party. On
October 16, 1998, these properties were acquired by newly formed subsidiaries of
the AIMCO Operating Partnership (the "Subsidiary Partnerships") for a purchase
price of approximately $41.8 million (exclusive of certain transaction costs),
consisting of approximately $16.8 million in cash and the assumption of
approximately $25.0 million in mortgage indebtedness. IPLP provided
approximately $17.1 million to the AIMCO Operating Partnership for the
acquisition of certain multifamily residential properties. In consideration for
such amount, the AIMCO Operating Partnership assigned all of its right, title
and interest in and to the profits, distributions, losses, and all other
economic rights and obligations arising out of its limited partnership interest
in the Subsidiary Partnerships to IPLP. The seven garden-style apartment
communities are located in three states, have an
 
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<PAGE>   192
 
average age of 14 years and contain 1,353 apartment units. Five of the apartment
communities are located in Florida, with 448 units in Jacksonville, 208 units in
Daytona Beach, 120 units in Melbourne and 216 units in Palm Bay. One apartment
community with 137 units is located in Hemet, California and one apartment
community with 224 units is located in Stone Mountain, Georgia.
 
  IPLP Exchange
 
     On December 7, 1998, IPLP and the AIMCO Operating Partnership entered into
the IPLP Assignment Agreement, which amended and restated a similar agreement
dated as of October 1, 1998. Pursuant to the IPLP Assignment Agreement,
effective October 1, 1998, IPLP transferred the economic rights to the Assets to
the AIMCO Operating Partnership, and the AIMCO Operating Partnership assumed all
of the obligations of IPLP related to the Assets in exchange for approximately
10.2 million OP Units. Immediately following the IPLP Exchange, the sole assets
owned by IPLP consisted of (i) a 100% ownership interest in Cooper River (which
in turn owns limited partner units in a number of publicly-traded limited
partnerships), (ii) cash, (iii) IPLP's rights under the IPLP Credit Agreement,
(iv) approximately 10.2 million OP Units and (v) all residual rights under the
Assets (which have insignificant economic value).
 
     The number of OP Units issued by AIMCO Operating Partnership to IPLP in the
IPLP Exchange was calculated based upon an OP Unit value of $37.75, the price of
AIMCO Common Stock on September 30, 1998. The economic rights to the Assets were
valued by IPLP and the AIMCO Operating Partnership at approximately $386.2
million, which resulted in the AIMCO Operating Partnership issuing approximately
10.2 million OP Units to IPLP in exchange for the economic rights to the Assets.
 
  AMIT Notes Repurchase
 
     On November 30, 1998, IPLP repurchased from the AIMCO Operating Partnership
participations in certain AMIT notes for approximately $11 million.
 
                         THE IPLP PARTNERSHIP AGREEMENT
 
     The following summary of the IPLP Partnership Agreement, and the
descriptions of certain provisions thereof set forth elsewhere herein, are
qualified in their entirety by reference to the IPLP Partnership Agreement, a
copy of which has been filed as an exhibit to IPT's reports under the Exchange
Act.
 
MANAGEMENT
 
     IPLP was formed as a Delaware limited partnership in May 1996. IPT is the
sole general partner of IPLP, and the AIMCO Operating Partnership (as holder of
the interest formerly held by IFG) is currently the only limited partner of
IPLP. In addition, the AIMCO Operating Partnership is designated in the IPLP
Partnership Agreement as the special limited partner and, as such, possesses
certain rights described below not shared by others who may become limited
partners of IPLP.
 
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<PAGE>   193
 
     IPT, as the sole general partner of IPLP (in such capacity, together with
any substitute general partner that may be appointed in accordance with the
terms of the IPLP Partnership Agreement, the "General Partner"), has full and
exclusive responsibility and discretion in the management and control of IPLP.
The limited partners in their capacity as such generally will have no authority
to transact business for, or participate in the management activities or
decisions of, IPLP. The General Partner may, with the consent of the special
limited partner but without the consent of any other limited partner, amend or
modify the IPLP Partnership Agreement in any respect, provided, however, that
any amendment which would (i) impose on any limited partner any obligation to
make additional capital contributions or (ii) materially adversely affect the
economic rights of such limited partner requires the consent of such limited
partner.
 
     The General Partner is not permitted to take certain actions without the
prior written consent of the special limited partner. Specifically, without the
prior written consent of the special limited partner, the General Partner may
not (i) enter into or amend, modify or terminate any conflict avoidance
arrangement contemplated by the IPLP Partnership Agreement, (ii) sell all or
substantially all of IPLP's assets or cause IPLP to merge or consolidate with or
into any other entity, or (iii) issue any additional IPLP OP Units or other
interests in IPLP if, as a result of such issuance, the relative economic
interest of the special limited partner in IPLP would be materially diluted.
 
TRANSFERABILITY OF INTERESTS
 
     The General Partner generally may not voluntarily withdraw from IPLP or
transfer or assign its interest in IPLP. Limited partners may transfer their
IPLP OP Units, in whole or in part, except in the following circumstances: (i)
in the opinion of legal counsel for IPLP, such proposed transfer would require
registration of IPLP OP Units under the Securities Act or would otherwise
violate any Federal or state securities law; (ii) in the opinion of legal
counsel for IPLP, such proposed transfer would (a) adversely affect IPLP's
status as a qualified REIT subsidiary within the meaning of the Code or (b)
adversely affect IPT's ability to qualify as a REIT or subject IPT to additional
taxes; (iii) such proposed transfer would be effected through an "established
securities market" or "secondary market" within the meaning of the Code; or (iv)
such proposed transfer would be made to a lender whose loan would constitute a
nonrecourse liability, unless the General Partner has consented.
 
CAPITAL CONTRIBUTIONS
 
     The IPLP Partnership Agreement provides that if IPLP requires additional
funds at any time, or from time to time, in excess of funds available to IPLP
from borrowing from IPT or additional capital contributions, IPT may borrow such
funds from a financial institution or other lender and lend such funds to IPLP
on the same terms and conditions as are applicable to IPT's borrowing of such
funds. Under the IPLP Partnership Agreement, IPT generally is obligated to
contribute the net proceeds received in connection with any offering of IPT
Common Shares or IPT preferred shares as additional capital to IPLP. Moreover,
IPT is authorized, as the General Partner, to cause IPLP to issue IPLP OP units
for less than fair market value if IPT has concluded in good faith that such
issuance is in the best interests of IPT and IPLP.
 
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<PAGE>   194
 
     If IPT contributes additional capital to IPLP (which can only happen upon
the issuance of IPT securities and the subsequent contribution or deemed
contribution by IPT to IPLP of the net proceeds of such issuance), then IPT will
receive additional IPLP OP units, and its percentage interests in IPLP will be
increased on a proportionate basis based upon the amount of such additional
capital contributions and the value of IPLP at the time of such contributions.
Conversely, the percentage interests of the limited partners will be decreased
on a proportionate basis in the event of additional capital contributions by
IPT.
 
REDEMPTION RIGHTS
 
     Under the IPLP Partnership Agreement, the limited partners of IPLP have
redemption rights ("Redemption Rights") which enable them to cause IPLP to
redeem each IPLP OP Unit for cash equal to the value of an IPT Common Share
(subject, however, to a first right of IPT to purchase each IPLP OP Unit offered
for redemption for one IPT Common Share, subject to adjustment upon the
occurrence of share splits, mergers, consolidations or similar pro rata share
transactions which would have the effect of diluting the ownership interests of
the limited partners or the shareholders of IPT). If the limited partner
electing to redeem its IPLP OP Units is the AIMCO Operating Partnership, the
election as to whether IPT will exercise its first right to acquire such IPLP OP
Units for IPT Common Shares will be made by a committee of the IPT Board
consisting solely of members who are not officers, directors or employees of
AIMCO. The Redemption Rights may not be exercised, however, if and to the extent
that (i) the acquisition of IPLP OP Units by IPT in exchange for IPT Common
Shares (regardless of whether IPT would in fact exercise its rights to acquire
such IPLP OP Units for IPT Common Shares) would (a) result in any person owning,
directly or indirectly, IPT Common Shares in excess of the limitations set forth
in the "excess share" provisions contained in IPT's Declaration, (b) result in
IPT Common Shares being owned by fewer than 100 persons (determined without
reference to any rules of attribution), (c) result in IPT being "closely held"
within the meaning of section 856(h) of the Code (for this purpose taking into
account the applicable attribution rules imposed by the Code), (d) cause IPT to
own, directly or constructively, 10% or more of the ownership interests in a
tenant in a real property directly or indirectly owned by IPT within the meaning
of section 856(d)(2)(b) of the Code, or (e) cause the issuance of IPT Common
Shares to such redeeming limited partner to be "integrated" with any other
distribution of IPT Common Shares for purposes of complying with the Securities
Act; or (ii) on the date of redemption, IPT does not have a class of securities
registered under the Exchange Act or does not qualify for an exemption from
registration with respect to the IPT Common Shares to be issued.
 
     Only IPLP OP Units outstanding for at least one year may be redeemed. Not
more than two redemptions by any limited partner may occur during each calendar
quarter, and no limited partner may exercise Redemption Rights for less than
1,000 IPLP OP Units or, if such limited partner holds less than 1,000 IPLP OP
Units, for less than all of the IPLP OP Units held by such limited partner.
Prior to the expiration of the one year holding period, the General Partner, may
permit a lender to whom IPLP OP Units have been pledged with IPT's consent to
exercise the Redemption Right (but only for cash) in the event of a foreclosure.
In the future, it may become necessary to place additional restrictions on the
exercise of Redemption Rights in order to assure that IPLP does not
 
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<PAGE>   195
 
become a "publicly traded partnership" under the Code and thereby taxable as a
corporation for Federal income tax purposes. As of December 15, 1998, the
aggregate number of IPLP OP Units outstanding held by the AIMCO Operating
Partnership (the special limited partner of IPLP) is 9,934,475, of which
9,415,947 were eligible for redemption upon exercise of the Redemption Rights.
 
OPERATIONS
 
     The IPLP Partnership Agreement requires that IPLP be operated in a manner
that will enable IPT to qualify as a REIT (unless the IPT Board determines that
it is no longer in the best interests of IPT to conduct business as a REIT), to
avoid any Federal income or excise tax liability imposed under the Code and to
ensure that IPLP will not be classified as a "publicly traded partnership" for
purposes of section 7704 of the Code.
 
     In addition to the administrative and operating costs and expenses incurred
by IPLP, IPLP will reimburse IPT (as General Partner) for all administrative
costs and expenses it incurs, and such expenses will be treated as expenses of
IPLP. Such expenses generally include all expenses (i) relating to the formation
and continuity of existence of IPT and subsidiaries thereof, (ii) relating to
any offering or registration of securities by IPT, (iii) incurred in connection
with the issuance, repurchase or redemption of securities by IPT or IPLP, (iv)
associated with the preparation and filing of any periodic reports by IPT under
Federal, state or local laws or regulations, (v) associated with compliance by
IPT with laws, rules and regulations promulgated by any regulatory body, (vi)
associated with any 401(k) plan, incentive plan, bonus plan or other plan
providing for compensation for trustees, officers or directors, and (vii)
otherwise incurred by the General Partner in the ordinary course of business on
behalf of IPLP.
 
DISTRIBUTIONS AND ALLOCATIONS
 
     The IPLP Partnership Agreement generally provides that IPLP will distribute
cash from operations (including net sale and refinancing proceeds, but excluding
net proceeds from the sale of IPLP's property in connection with the liquidation
of IPLP) at such time and in such amounts as determined by the General Partner
in its sole discretion (but in any event no less frequently than annually) to
the partners in accordance with their respective percentage interests in IPLP.
However, the General Partner is required to use its reasonable efforts to cause
IPLP to distribute amounts sufficient to enable IPT to meet the REIT
distribution requirements. Upon liquidation of IPLP, after payment of, or
adequate provision for, its debts and obligations, including any loans from
partners, any remaining assets of IPLP will be distributed to all partners with
positive capital accounts in accordance with their respective capital account
balances. If the General Partner has a negative balance in its capital account
following a liquidation of IPLP, it will be obligated to contribute cash to IPLP
equal to the negative balance in its capital account.
 
     Profit and loss of IPLP for each fiscal year will generally be allocated
among the partners in accordance with their respective percentage interests in
IPLP. Taxable income and loss will be allocated in the same manner, subject to
compliance with the provisions of sections 704(b) and 704(c) of the Code and the
Treasury Regulations. The General Partner has the right to alter the method of
allocation in any way that is not adverse to the interests of the limited
partners.
 
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PROPERTY MANAGEMENT AND CONTRACT LOSS FEE
 
     The IPLP Partnership Agreement requires IPT and IPLP to cause AIMCO (as
successor to IFG) to be retained as property manager for all properties now and
hereafter controlled by IPT pursuant to separate property management agreements.
The property management services to be provided by AIMCO include (i) performing
all accounting functions incidental to the properties, such as rent processing
and collection, accounts payable (e.g., mortgages, taxes and insurance), payroll
and financial reporting, (ii) acting as a rental agent for the properties, and
(iii) seeing the routine maintenance responsibilities relating to the
properties. The property management agreements generally provide for the payment
of fees to AIMCO based on a percentage of the rent collections from the managed
properties. The percentage charged varies inversely with the rental rates and
the size of the property, although the actual percentage is based on a variety
of factors, including prevailing market rates and, in the case of the Controlled
Partnerships, the terms of the underlying partnership agreements, and is not
determined or fixed by any formula. In general, though, AIMCO is compensated:
(i) on the same terms that existed prior to the formation of IPT, with respect
to properties controlled by IPT at the time of its formation; (ii) on the same
terms that existed immediately prior to acquisition of control, with respect to
properties of which IPT acquired control subsequent to its formation and which
were managed by IFG immediately prior to such acquisition; or (iii) on terms
comparable to those employed by other major, full service real estate management
companies in light of the nature and geographic location of the properties, with
respect to properties of which IPT acquired control subsequent to its formation
but which were not managed by AIMCO immediately prior to such acquisition.
 
     The IPLP Partnership Agreement also provides that if, after taking into
account certain equitable adjustments specified in the IPLP Partnership
Agreement, (x) the total amount of property management fees paid to AIMCO in
respect of all properties controlled by IPT during any rolling twelve-month
period ending at the end of a calendar quarter is less than (y) 90% of the total
annualized amount of property management fees paid to IFG and AIMCO for the year
preceding IPT's acquisition of control of the Designated Properties (as
hereinafter defined) (a "Triggering Event"), then IPLP is required to pay AIMCO
a fee (the "Contract Loss Fee") equal to the greater of (i) the decrease in the
market value of AIMCO resulting or reasonably expected to result by virtue of
the Triggering Event and (ii) the increase in market value of IPT resulting or
reasonably expected to result from such Triggering Event; provided, however,
that a Contract Loss Fee shall not duplicate the payment of any previous
Contract Loss Fee resulting from a prior Triggering Event. The calculation of a
Contract Loss Fee shall be made, at the expense of IPLP, within 30 days
following the end of the calendar quarter in which a Triggering Event occurs by
one of the 15 largest investment banks in the United States (determined based on
the aggregate dollar amount of equity offerings by each investment bank during
the past year), and IPLP is required to pay AIMCO the Contract Loss Fee in cash
no later than 45 days following the end of the calendar quarter in which the
Triggering Event occurs. For this purpose, a "Designated Property" is any
multifamily residential property (i) with respect to which IFG was providing
property management services immediately prior to the acquisition of control
thereof by IPT, (ii) the controlling interest in which was acquired by IPT from
AIMCO, IFG, MAE or an affiliate of either of them or (iii) with respect to which
AIMCO or IFG paid some form of consideration to any entity or person (other than
another affiliate of AIMCO or IFG)
 
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<PAGE>   197
 
for the purpose of acquiring, or otherwise in respect of, the property
management rights relating thereto. Pursuant to the Merger Agreement, the
foregoing provision does not apply so long as AIMCO controls IPT.
 
     IPT's obligation to cause AIMCO, as successor to IFG, to be retained as
property manager for all the properties controlled by IPT terminates, on a
property by property basis, upon the earliest to occur of (i) the termination of
the IPLP Partnership Agreement, (ii) the termination by AIMCO of the applicable
property management agreement, (iii) the termination of the applicable property
management agreement by the applicable property-owning entity for cause (but not
for any other reason, notwithstanding that such termination may have been
expressly permitted by the terms of such property management agreement), or (iv)
such time as IPT or IPLP no longer controls such property.
 
PUT RIGHTS
 
     Upon the occurrence of or during the continuation of any material breach by
IPT or IPLP of its obligations under the IPLP Partnership Agreement (including,
without limitation, the failure to pay any Contract Loss Fee due), AIMCO, MAE
and their respective affiliates (other than IPT and IPLP) (the "Put Holders")
have the right to (i) demand an appraisal of (a) all IPLP OP Units (and any
other interests in IPLP) held by the Put Holders (collectively, the "Put Right
Units") and (b) the IPT Common Shares (and any other securities of IPT) held by
the Put Holders, and (ii) to require (a) IPT to purchase all or any portion of
such IPT Common Shares (and other IPT securities) and (b) IPLP to purchase all
or any portion of such Put Right Units. The appraisals of the IPT Common Shares
(and other IPT securities) and the Put Right Units will be performed by one of
the 15 largest national investment banks in the United States (as measured by
the aggregate dollar amount of equity offerings underwritten during the
preceding year and selected in accordance with the procedures set forth in the
IPLP Partnership Agreement) based on the greatest of (i) their value based on an
independent going concern/continuing operations analysis, (ii) sale of the
entire entity analysis and (iii) liquidation analysis. IPLP is required to bear
the cost of the investment bank's services. Pursuant to the Merger Agreement,
the foregoing provision (insofar as it relates to AIMCO) does not apply so long
as AIMCO controls IPT.
 
PARTNERSHIP ADMINISTRATION SERVICES
 
     AIMCO (as the successor to IFG) currently provides partnership
administration services to each Controlled Partnership which was such at the
time IPT was formed (the "Formation Partnerships"). Such services, for which
AIMCO is typically paid on a reimbursement basis only, generally include asset
management, accounting functions, investor relations and the preparation and
filing of required reports under the Exchange Act. Under the terms of the IPLP
Partnership Agreement, IPT (i) is obligated to cause each Formation Partnership
to continue to engage AIMCO to provide partnership administration services on
substantially the same terms, including compensation and reimbursement, as were
in effect on January 1, 1997, and (ii) may, but is not obligated to, cause AIMCO
to be retained to provide such services to any business entity which
subsequently becomes controlled by IPT, provided that once AIMCO has been
engaged to provide such services, IPT is obligated to cause such entity to
continue to engage AIMCO
 
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<PAGE>   198
 
(such additional entities, together with the Formation Partnerships, the
"Administration Entities").
 
     In the event that IPT breaches its obligation to cause an Administration
Entity to continue to engage AIMCO to provide partnership administration
services (including as a result of the dissolution or ceasing to exist of such
Administration Entity in connection with or as a result of a merger or other
business combination transaction or the sale of all or substantially all of its
assets in a single transaction or series of related transactions), then IPLP is
required to pay AIMCO the aggregate allocated costs of AIMCO relating to such
Administration Entity, including the costs of fixed assets, long-term
obligations, insurance, utilities, employees (including severance and other
termination payments) and other items related to the provision of administrative
services to such Administration Entity.
 
     IPT's obligation to cause each Administration Entity to engage AIMCO to
provide partnership administration services shall terminate, on an entity by
entity basis, upon the earliest to occur of (i) the termination of the IPLP
Partnership Agreement, (ii) the termination by AIMCO of the provision of such
services to such Administration Entity, (iii) the termination of the engagement
of AIMCO by such Administration Entity for cause (but not for any other reason),
or (iv) such time as such Administration Entity is dissolved and its affairs
wound up in connection with an orderly liquidation thereof.
 
TRANSFERS OF CONTROLLING INTERESTS IN IPT ENTITIES
 
     IPT and IPLP have agreed not to assign, or to permit or cause any of IPT,
IPLP, and each business entity which owns a controlling interest in (i) any real
property owned or otherwise controlled by a Controlled Partnership (as of
January 1, 1997) as of January 1, 1997, or (ii) any real property in which IPT
or IPLP, or either of them, acquires direct or indirect ownership of (a) such
real property or (b) a controlling interest in a business entity that owns such
real property (each, an "IPT Entity") to assign, any controlling interest in any
IPT Entity except in accordance with the terms of the IPLP Partnership
Agreement, which provides that IPT is required to deliver a written notice
("Sale Notice") to AIMCO, as successor to IFG, at least 60 days prior to any
transfer of any controlling interest in an IPT Entity. The Sale Notice must set
forth in reasonable detail the identity of the prospective transferee(s) and the
terms and conditions of any proposed transfer. Within 30 days after receipt of
the Sale Notice by AIMCO, AIMCO may, upon written notice to IPT, elect to
purchase not less than all of the controlling interests in the IPT Entity
described in the Sale Notice upon the same terms and conditions set forth in
such notice. If AIMCO elects not to purchase the controlling interest in the IPT
Entity described in the Sale Notice, the interest may be transferred at a price
and on terms no more favorable to the transferee than those set forth in the
Sale Notice. Upon the sale of any controlling interest in an IPT Entity other
than to AIMCO (and assuming that AIMCO is not retained as the property manager
for the properties controlled by such IPT Entity), any amount of the sale price
which exceeds the fair market value of the assets attributable to such
controlling interest (i.e., any management control premium) is required to be
paid to AIMCO. A decision by AIMCO not to exercise its right to purchase the
interests in an IPT Entity described in a Sale Notice does not affect any
obligation of IPLP to pay to AIMCO any applicable Contract Loss Fee.
 
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TERM
 
     IPLP will continue in existence until December 31, 2097, unless sooner
dissolved upon the first to occur of (i) an election to dissolve the Partnership
by the General Partner with the consent of the Special Limited Partner, (ii) the
redemption of all IPLP OP Units held by limited partners of IPLP or (iii) the
entry of a decree of judicial dissolution of IPLP pursuant to the provisions of
the Delaware Revised Limited Partnership Act.
 
TAX MATTERS PARTNER
 
     Pursuant to the IPLP Partnership Agreement and the Code, the General
Partner is the tax matters partner of IPLP and, as such, has the authority to
handle tax audits and to make tax elections under the Code on behalf of IPLP.
 
                 ACQUISITION AND DISPOSITION SERVICES AGREEMENT
 
     The following summary of the Acquisition and Disposition Services
Agreement, and the descriptions of certain provisions thereof set forth
elsewhere herein, are qualified in their entirety by reference to the
Acquisition and Disposition Services Agreement, a copy of which has been filed
as an exhibit to IPT's reports under the Exchange Act.
 
ACQUISITION AND DISPOSITION SERVICES
 
     In connection with the termination of the Advisory Agreement, IPT, IPLP and
IFG entered into the Acquisition and Disposition Services Agreement, which
provides that IPT has the right, but not the obligation, to engage AIMCO, as
successor to IFG, to provide services, on a transaction by transaction basis, in
connection with acquisitions and disposition of whole real estate and real
estate-related assets ("Real Estate Transactions") and acquisitions of equity or
debt securities of, or other ownership interests in, entities which own real
estate or real estate-related assets ("Securities Transactions") through
December 31, 2000. Such services would include (i) consulting advice and
financial analysis; (ii) due diligence review and analysis of documentation and
operations; (iii) negotiation, drafting and review of transaction documents;
(iv) brokerage and other disposition services; and (v) other services reasonably
related or incidental to the foregoing. In addition, IPT and IPLP may engage
AIMCO to provide financing, refinancing, insurance, foreclosure, legal and/or
appraisal services.
 
     As compensation for such services, IPLP will pay to AIMCO the following
fees: (i) for each Securities Transaction, an amount equal to 1.5% of the
aggregate net asset value of the securities or other ownership interests
acquired; and (ii) for each Real Estate Transaction involving an acquisition
(but not a disposition), an amount equal to 0.75% of the aggregate purchase
price (or IPT's pro rata portion thereof in the case of an acquisition with one
or more partners) of the real estate or real estate-related assets acquired by
IPT (including any debt incurred or assumed in connection therewith). IPLP is
also obligated to reimburse AIMCO for (i) all out-of-pocket third-party costs
and expenses incurred in connection with its provision of such services and (ii)
for all employee costs (including commissions) incurred by AIMCO in connection
with Real Estate Transactions involving dispositions of real properties, not to
exceed 1.0% of the gross sales price.
 
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<PAGE>   200
 
AGREEMENTS REGARDING CERTAIN REAL ESTATE OPPORTUNITIES
 
     The Acquisition and Disposition Services Agreement contains certain
provisions (each of which AIMCO has caused IPT to waive subsequent to the
execution of the Merger Agreement) which provide that AIMCO, as successor to
IFG, may not acquire or enter into a definitive agreement to acquire an IPT
Opportunity (as defined below) unless AIMCO has provided notice of such IPT
Opportunity to IPT and IPLP, and IPT and IPLP have elected not to invest in such
IPT Opportunity. However, AIMCO is permitted to enter into a definitive
agreement which provides AIMCO the contractual right to acquire an IPT
Opportunity if such agreement expressly provides that the right to acquire such
IPT Opportunity may be assigned by AIMCO to IPT or IPLP. AIMCO is required to
notify IPT of an IPT Opportunity only if AIMCO plans to invest in the IPT
Opportunity for its own account. Thus, AIMCO is not obligated to notify IPT of
all IPT Opportunities of which it becomes aware. An "IPT Opportunity" means any
opportunity to invest in or acquire (i) any multifamily residential property or
properties located in the United States, (ii) indebtedness secured by
multifamily residential property or properties located in the United States, and
(iii) equity or debt securities of, or other ownership interests in, an
individual, corporation, partnership or other entity described in the
Acquisition and Disposition Services Agreement (a "Person") which primarily owns
or invests in multifamily residential properties in the United States. The
definition of IPT Opportunity specifically excludes opportunities to invest in
or acquire multifamily residential property in the United States, or an equity
or other ownership interest in a Person which invests primarily in multifamily
residential housing in the United States but is not controlled by IPT or IPLP,
if AIMCO or its affiliates owned any equity, debt or other ownership interest in
such multifamily residential property or business entity on January 1, 1998 or
acquired an equity, debt or ownership interest in such multifamily residential
property or Person in accordance with the Acquisition and Disposition Services
Agreement.
 
     AIMCO's obligations under the Acquisition and Disposition Services
Agreement with respect to IPT Opportunities will terminate upon the earliest to
occur of (i) the termination of the Acquisition and Disposition Services
Agreement or a material breach thereof by IPT or IPLP, (ii) the incurrence by
IPLP of an obligation to pay a "Contract Loss Fee" pursuant to the IPLP
Partnership Agreement, or (iii) the failure of IPT and/or IPLP to retain AIMCO
to provide property management services to the properties controlled by IPT
and/or IPLP as required by the IPLP Partnership Agreement.
 
     The Acquisition and Disposition Services Agreement reciprocally prohibits
IPT and IPLP from acquiring an AIMCO Opportunity (as defined below) without the
prior written consent of AIMCO. An "AIMCO Opportunity" means any opportunity to
invest in or acquire equity or debt securities of or other ownership interests
in a Person that (i) invests primarily in real property other than multifamily
residential property in the United States, (ii) invests primarily in multifamily
residential property in the United States if (x) such business entity is
controlled by AIMCO or MAE or (y) AIMCO or its affiliates serve as property
manager of the properties owned by such Person, or (iii) performs property
management services (regardless of the type of property with respect to which
such services are performed). The definition of AIMCO Opportunity specifically
excludes opportunities to invest in or acquire equity or debt securities of, or
other ownership interests in, a Person that invests primarily in multifamily
residential property located in
 
                                       194
<PAGE>   201
 
the United States if IPT owned an equity, debt or other ownership interest in
such Person as of January 1, 1998 or acquired an equity, debt or other ownership
interest in such Person pursuant to the Acquisition and Disposition Services
Agreement.
 
     The obligations of IPT with respect to AIMCO Opportunities will terminate
only upon the termination of the Acquisition and Disposition Services Agreement.
 
                             IPLP CREDIT AGREEMENT
 
     The following summary of the IPLP Credit Agreement and the descriptions of
certain provisions thereof set forth elsewhere herein are qualified in their
entirety by reference to the IPLP Credit Agreement, a copy of which has been
filed as an exhibit to IPT's reports under the Exchange Act.
 
     IPLP has entered into the IPLP Credit Agreement with Lehman Commercial
Paper, Inc., as syndication agent, First Union National Bank, as administrative
agent (in such capacity, the "Administrative Agent") and the lenders from time
to time parties thereto (the "Lenders"). Pursuant to the IPLP Credit Agreement,
the Lenders have made available to IPLP a revolving credit facility of up to $50
million at any one time outstanding ("Line of Credit"). Loans under the Line of
Credit (the "Loans") may be utilized to finance certain permitted investments
and refinance certain investments made prior to the date of the IPLP Credit
Agreement. The Line of Credit matures in a single installment on December 30,
2000.
 
     IPLP may borrow under the Line of Credit at a rate based upon the LIBOR
Rate (as defined in the IPLP Credit Agreement) plus 2.50% per annum (the "LIBOR
Loans") or the Base Rate (as defined in the IPLP Credit Agreement) (the "Base
Rate Loans"). As of December 31, 1998, IPLP had $30 million of outstanding
indebtedness under the Line of Credit.
 
     IPLP is obligated to pay a commitment fee at a rate of 0.25% per annum on
the undrawn portion of the Line of Credit. Such commitment fee is payable
quarterly in arrears and calculated based on the actual number of days elapsed
over a 365-day year.
 
     The Loans are subject to mandatory repayment only to the extent that the
aggregate outstanding principal amount of the Loans on any day exceeds the
amount of the Line of Credit then in effect. Voluntary repayments of the Loans
and voluntary reductions of the Line of Credit are permitted in whole or in part
at the option of IPLP, in minimum principal amounts, without premium or penalty,
subject to reimbursement of certain of the Lenders costs under certain
conditions.
 
     IPLP's obligations under the Line of Credit have been guaranteed by IPT and
such guaranty is secured by a pledge of the capital stock or other equity
interests held by IPT in each of the subsidiaries of IPT which, directly or
indirectly, owns or controls the general partner interest in any Real Estate
Entity (as defined below) in which IPLP, directly or indirectly owns a limited
partner interest. In addition, the Line of Credit is secured by a first priority
security interest in all limited partnership interests from time to time owned
by IPLP and the equity interests from time to time held by IPLP in any
subsidiary of IPLP which itself owns limited partnership interests. The IPLP
Credit Agreement defines a "Real Estate Entity" as any limited partnership,
limited liability company, corporation or
 
                                       195
<PAGE>   202
 
other entity which has as its principal business the ownership of real property
or debt secured by real property. Thus, all of the Controlled Partnerships
constitute Real Estate Entities for purposes of the IPLP Credit Agreement.
 
     The IPLP Credit Agreement contains customary covenants and restrictions on
IPLP's ability to, among other things, incur debt or contingent obligations,
grant liens, sell assets, make distributions or make investments. In addition,
the IPLP Credit Agreement contains certain financial covenants which require
that (a) the ratio of adjusted portfolio equity of IPLP to funded debt not be
less than 5.00 to 1.00 at the end of any fiscal quarter, (b) the ratio of
Adjusted DCFO (as defined below) for the period of four fiscal quarters then
ended to the sum of interest expense and certain dividend accruals not be less
than 1.10 to 1.00 at the end of any fiscal quarter and (c) the ratio of Adjusted
DCFO for the period of four fiscal quarters then ended to interest expense for
such period not be less than 6.00 to 1.00. For purposes of the IPLP Credit
Agreement, the term "DCFO" means, for any period, the aggregate net operating
income for such period of each Real Estate Entity in which IPLP owns an equity
interest less with respect to each Real Estate Entity for such period the sum of
(i) cash interest expense, (ii) all principal payments (other than in connection
with refinancings) on the debt of such Real Estate Entity, (iii) an amount equal
to the greater of (x) the capital expenditures (exclusive of capital
expenditures to restore newly acquired properties to their original condition in
accordance with a budget provided by IPLP within 90 days after acquisition) less
funded capital expenditures or (y) an amount equal to $500 for each apartment
unit and $0.20 per square foot for each commercial property owned by such Real
Estate Entity; and the term "Adjusted DCFO" means, as of any date, an amount
equal to the aggregate of IPLP's pro rata portion of the DCFO of each Real
Estate Entity in which IPLP owns an equity interest (after giving effect to any
acquisition by IPLP of an equity interest in such Real Estate Entity during the
quarterly period ending on the determination date) plus all fee and other income
received by IPLP during such period (excluding extraordinary items) less all
unreimbursed fees and expenses paid by IPLP or IPT during such period.
 
     Events of default under the IPLP Credit Agreement include: (i) nonpayment
of principal with no period of grace and nonpayment of interest due under the
Line of Credit within five days after the same become due; (ii) material breach
of any representation or warranty; (iii) failure to observe any term, covenant
or agreement contained in the Line of Credit beyond (in certain cases) an
applicable period of grace; (iv) the failure by IPLP to pay amounts due on
account of the termination of any interest hedge agreement within ten days of
the date when due; (v) default by IPLP in the payment when due, or in the
performance or observance, of any material obligation involving monetary
liability in excess of $5,000,000 to the extent that such liability is not being
contested by IPLP in good faith with adequate reserves having been established
on its books in accordance with GAAP; (vi) certain events of bankruptcy or
insolvency with respect to IPLP or, in some cases, material subsidiaries; (vii)
the occurrence of certain events under the Employee Retirement Income Security
Act of 1974, as amended; (viii) the failure of any material provision of the
Credit Agreement or any agreement delivered pursuant thereto to continue to be a
valid and binding obligation of IPLP; (ix) the failure of the relevant security
documents to continue to be a valid first priority lien on any material portion
of the collateral security pledged pursuant thereto; and (x) judgments against
IPLP of $3,000,000 or greater that remain unsatisfied, unvacated or unstayed
pending appeal for a period of 30 days after entry.
 
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<PAGE>   203
 
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
           AND RESULTS OF OPERATIONS OF IPT AND THE IPT PARTNERSHIPS
 
     This Information Statement/Prospectus contains forward-looking statements
that involve risks and uncertainties. IPT's actual results could differ
materially from the results discussed in the forward-looking statements.
 
IPT
 
     The following is based on (i) the historical results of IPT for the nine
months ended September 30, 1998 and the year ended December 31, 1997, and (ii)
the historical results of IPT's predecessor entities for the years ended
December 31, 1996 and 1995. IPT's predecessor entities began operations in 1994
with the acquisition of partnership interests in December 1994. IPT's most
significant assets are its investments in real estate limited partnerships,
which are principally comprised of general and limited partner interests in the
IPT Partnerships. See Note 3 to the Combined Financial Statements of IPT for a
summary of investments made for each year. This information should be read in
conjunction with the accompanying combined financial statements and the related
notes thereto.
 
  Financial Condition
 
     On September 17, 1998, AMIT was merged with and into IPT. In the AMIT
Merger, each issued and outstanding Class A and B common share of AMIT was
converted into a total of 4,018,778 IPT Common Shares valued at approximately
$10.72 per share. As a result of the AMIT Merger, IPT acquired approximately
$13.4 million in cash, 19 loans with an aggregate principal balance of
approximately $21.1 million, nine investment properties valued at approximately
$18.8 million, net current assets of approximately $0.3 million and mortgage
notes payable with an aggregate principal balance of approximately $7.1 million.
These account balances were recorded at their estimated fair values at the date
of the AMIT Merger. Also in connection with the AMIT Merger, IPT reclassified
previously capitalized merger costs of approximately $3.6 million in addition to
the purchase price of AMIT. Net income before minority interest and
extraordinary item resulting from the AMIT Merger, and reflected in the
statements of income for the three and nine months ended September 30, 1998, was
approximately $89,000 for each period.
 
     At September 30, 1998, IPT held assets of $322 million, an increase of 42%
from December 31, 1997. IPT's assets consisted primarily of cash, investments in
real estate limited partnerships, apartment properties and mortgage notes
receivables. The increase in assets resulted primarily from increased
investments in real estate limited partnerships and the AMIT Merger. Total
liabilities increased 167% to $67.9 million at September 30, 1998, compared to
$25.4 million at December 31, 1997. The increase in liabilities is due primarily
to approximately $30 million drawn on the Line of Credit and an increase in
liabilities of approximately $8.1 million as a result of the AMIT Merger. The
apartment property balance constitutes the principal assets of The Village of
Pennbrook in National Property Investors 4 ("NPI 4") (which is an IPT
Partnership of which IPLP owns a majority of the limited partner interests),
Raintree Apartments in Raintree Pensacola, L.P. (which is a wholly-owned
subsidiary of IPT), and the nine investment properties acquired in the AMIT
Merger, all of which are consolidated in IPT's financial statements. The non-
 
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<PAGE>   204
 
recourse mortgage notes payable balance constitute the primary liabilities of
NPI 4, Raintree Apartments and two of the nine investment properties acquired in
the AMIT Merger.
 
     IPT's assets increased from the prior year end 53% to $226.1 million at
December 31, 1997 and 171% to $147.8 million at December 31, 1996 for the years
then ended, respectively. The asset growth was principally in cash and cash
equivalents, investments in real estate limited partnerships, apartment
properties and other assets, principally due to the NPI Transaction, the Private
Offerings and the acquisition of units of limited partner interests in certain
of the IPT Partnerships in both the transactions with High River and various
tender offers.
 
     Cash and cash equivalents increased 50% to $56.1 million at September 30,
1998, compared to $37.4 million at December 31, 1997. The increase in cash and
cash equivalents is due primarily to cash received as a result of the AMIT
Merger of approximately $13.4 million, distributions received from partnerships
of approximately $18.7 million and draws on the Line of Credit of approximately
$30.0 million, offset by purchases of limited partner interests of approximately
$29.3 million, combined distributions paid by IPT and IPLP of approximately
$12.9 million and the purchase of Raintree Apartments, a 168-unit residential
apartment complex located in Pensacola, Florida. The purchase of Raintree
Apartments resulted in net cash outflow of approximately $1.1 million.
 
     Cash and cash equivalents increased from the prior year end 660% to $37.4
million at December 31, 1997 and 833% to $4.9 million at December 31, 1996 for
the years then ended, respectively. The primary sources of the cash increases
were the Private Offerings, for the year ended December 31, 1997, and the
consolidation of NPI 4 (as result of the NPI Transaction) for the year ended
December 31, 1996.
 
     Investments in real estate limited partnerships increased from $159.5
million at December 31, 1997, to $183.1 million at September 30, 1998, an
increase of 15%. The increase was attributable to the purchase of limited
partner interests during the first nine months of 1998 as noted above, the MAE
GP Merger and related contribution of limited partner interests by IFG,
partially offset by distributions of $30.1 million from the IPT Partnerships, of
which approximately $11.1 million was accrued at September 30, 1998.
 
     Investments in real estate limited partnerships increased from the prior
year end 34% to $159.5 million at December 31, 1997 and 120% to $118.7 million
at December 31, 1996 for the years then ended, respectively. The increase for
the year ended December 31, 1997 resulted primarily from the acquisitions of
units of limited partner interests in the Shelter Properties Partnerships and
acquisitions of units of limited partner interests in other IPT Partnerships in
various tender offers. The increase for the year ended December 31, 1996 was
primarily due to the acquisitions of units of limited partner interests in the
NPI Partnerships.
 
  Realty Transaction
 
     In June 1998, the AIMCO Operating Partnership entered into seven separate
Purchase and Sale Agreements with affiliates of Realty Investment Co. to acquire
seven multifamily residential properties from an unaffiliated third party. On
October 16, 1998,
 
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<PAGE>   205
 
these properties were acquired by newly formed subsidiaries of the AIMCO
Operating Partnership (the "Subsidiary Partnerships") for a purchase price of
approximately $41.8 million (exclusive of certain transaction costs), consisting
of approximately $17.1 million in cash and the assumption of approximately $25.0
million in mortgage indebtedness. IPLP provided approximately $17.1 million to
the AIMCO Operating Partnership for the acquisition of the seven multifamily
residential properties. In consideration for such amount, the AIMCO Operating
Partnership assigned all of its rights, title and interest in and to the
profits, distributions, losses, and all other economic rights and obligations
arising out of the limited partnership interest in the Subsidiary Partnerships
owned by the AIMCO Operating Partnership to IPLP. The seven garden-style
apartment communities are located in three states, have an average age of 14
years and contain 1,353 apartment units. Five of the apartment communities are
located in Florida, with 448 units in Jacksonville, 208 units in Daytona Beach,
120 units in Melbourne and 216 units in Palm Bay. One apartment community with
137 units is located in Hemet, California and one apartment community with 224
units is located in Stone Mountain, Georgia.
 
  IPLP Exchange
 
     On December 7, 1998, IPLP and the AIMCO Operating Partnership entered into
the IPLP Assignment Agreement, which amended and restated a similar agreement
dated as of October 1, 1998. Pursuant to the IPLP Assignment Agreement,
effective October 1, 1998, IPLP transferred the economic rights to the Assets to
the AIMCO Operating Partnership and the AIMCO Operating Partnership agreed to
assume all obligations of IPLP related to the Assets in exchange for
approximately 10.2 million OP Units. Immediately following the IPLP Exchange,
the sole assets owned by IPLP consisted of (i) a 100% ownership interest in
Cooper River (which in turn owns limited partner units in a number of
publicly-traded limited partnerships), (ii) cash, (iii) IPLP's rights under the
IPLP Credit Agreement, (iv) approximately 10.2 million OP Units and (v) all
residual rights under the Assets (which have insignificant economic value).
 
     The number of OP Units issued by AIMCO Operating Partnership to IPLP in the
IPLP Exchange was calculated based upon an OP Unit value of $37.75, the price of
AIMCO Common Stock on September 30, 1998. The economic rights to the Assets were
valued by IPLP and the AIMCO Operating Partnership at approximately $386.2
million, which resulted in the AIMCO Operating Partnership issuing approximately
10.2 million OP Units to IPLP in exchange for the economic rights to the Assets.
 
  AMIT Notes Repurchase
 
     On November 30, 1998, IPLP repurchased participations from the AIMCO
Operating Partnership in certain AMIT notes for approximately $11 million.
 
  Liquidity and Capital Resources
 
     The initial capitalization of IPT and IPLP was primarily funded by IFG. IFG
also initially provided IPLP a line of credit of $2.5 million for additional
investments. The outstanding balance on that line of credit was paid and the
line of credit canceled during July 1997.
 
                                       199
<PAGE>   206
 
     IPT's primary source of cash is the receipt of distributions from the IPT
Partnerships. IPT expects distributions from the IPT Partnerships to be
sufficient for it to maintain its current level of distributions on an annual
basis as required by the Merger Agreement.
 
     During 1997, IPT raised approximately $62.3 million through the private
placement of IPT Common Shares primarily with institutional investors. IPT
invested approximately $29.3 million of those proceeds to acquire additional
limited partner interests in IPT Partnerships during the first nine months of
1998, and through September 30, 1998 had invested a total of approximately $58
million of the offering proceeds to acquire additional interests in IPT
Partnerships.
 
     IPT also has available through the Line of Credit, of $50 million to use
for acquisitions. The Line of Credit is secured by a pledge and security
interest in all of the limited partner interests owned by IPLP. IPT expects the
Line of Credit to be sufficient for its acquisition requirements for the
remainder of 1998. As of September 30, 1998, IPT has borrowed $30 million of the
available credit facility to finance outstanding tender offers and future
purchases.
 
     Cash distributions of approximately $8.6 million ($.45 per share) were paid
during the first nine months of 1998. Additionally, cash distributions paid to
IPT shareholders of approximately $8.7 million and approximately $2.2 million
were paid in 1997 and 1996 respectively. IPT declared a distribution of
approximately $3.8 million to IPT shareholders of record on September 30, 1998,
and paid such distribution in October 1998. Cash distributions paid to IFG by
IPLP of approximately $5.4 million, approximately $6.8 million and approximately
$10.2 million were paid in 1997, 1996 and 1995 respectively. A cash distribution
of approximately $4.2 million was paid to IFG by IPLP during the first nine
months of 1998. The 1996 distribution was paid from the proceeds of a
distribution from IPLP, which simultaneously paid a distribution of
approximately $4.1 million to IFG (as the sole limited partner of IPLP).
 
  Results of Operations
 
     Because IPT's primary assets consist of general and limited partner
interests in the IPT Partnerships, a substantial majority of IPT's FFO results
from the pass through of IPT's share of FFO generated by the IPT Partnerships
(including IPT's share of the FFO generated by NPI 4 and Raintree Pensacola,
L.P., which are consolidated in IPT's combined financial statements). See Note 6
to IPT's Combined Financial Statements.
 
     Acquisitions of partnership interests began in December 1994 and have since
then continued. Substantial operating results began in 1995, which produced net
income of $2.2 million and $4.6 million of funds from operations. Net income of
$2.4 million in 1996 was up slightly from the $2.2 million in 1995, primarily
due to increased equity earnings resulting from acquisitions of interests in
partnerships during 1996. Net income for the year ended December 31, 1997 was
approximately $6.0 million, which was an increase of 148% from net income for
the year ended December 31, 1996. Net income for the nine months ended September
30, 1998 was approximately $11.2 million compared to approximately $2.9 million
for the same period in 1997. These increases were primarily due to increased
equity earnings resulting from improved operations of the IPT Partnerships and
from the acquisition of units of limited partner interest in various IPT
Partnerships. IFG's minority interest resulted primarily from IFG and its
affiliates
 
                                       200
<PAGE>   207
 
transferring to IPLP their limited partner interests in the IPT Partnerships in
exchange for IPLP OP Units in 1996 and 1997. Income before minority interest and
extraordinary items increased from approximately $3.9 million for the year ended
December 31, 1996 to approximately $10.5 million for the year ended December 31,
1997, and increased 206.8% to $18.1 million for the nine months ended September
30, 1998, compared to the same period in 1997. This increase was primarily
attributable to an increase in equity earnings due to improved operations of the
IPT Partnerships, to the acquisition of units of limited partner interests in
various IPT Partnerships, and to an increase in other income resulting from
increased distributions received from the Controlled Partnerships in which IPT
has a nominal investment. Also contributing to the increase was a gain of
approximately $5.9 million realized primarily on the sale of three properties
during the nine months ended September 30, 1998. There were no gains from
property sales during the comparable period of 1997.
 
     For the nine months ended September 30, 1998, FFO increased 73.2% to $24.6
million compared to $14.2 million for the nine months ended September 30, 1997.
FFO increased 67% to $20.9 million for the year ended December 31, 1997 compared
to $12.6 million for the year ended December 31, 1996. FFO increased 172% to
$12.6 million for the year ended December 31, 1996 from $4.6 million for the
year ended December 31, 1995. These increases were primarily the result of
additional partnership interest acquisitions, and to a lesser extent from an
increase in FFO from the IPT Partnerships. FFO is defined as income or loss from
real estate operations, which is net income in accordance with GAAP excluding
gains or losses for debt restructurings, sales of property and minority
interests, plus depreciation and provision for impairment. See "Selected
Consolidated and Combined Financial Data of IPT" for a reconciliation of net
income to FFO.
 
  Year 2000 Compliance
 
     The "Year 2000 Issue" is the result of computer programs being written
using two digits rather than four to define the applicable year. Any computer
programs or hardware that have date-sensitive software or embedded chips may
recognize a date using "00" as the year 1900 rather than the year 2000. This
could result in a system failure or miscalculations causing disruptions of
operations, including, among other things, a temporary inability to process
transactions, send invoices, or engage in similar normal business activities.
 
     IPT is dependent upon AIMCO for management and administrative services.
AIMCO has determined that it will be required to modify or replace significant
portions of its software and certain hardware so that those systems will
properly utilize dates beyond December 31, 1999. AIMCO presently believes that
with modifications or replacements of existing software and certain hardware,
the Year 2000 Issue can be mitigated. However, if such modifications and
replacements are not made, or are not completed timely, the Year 2000 Issue
could have a material impact on the operations of AIMCO and IPT.
 
     AIMCO's plan to resolve the Year 2000 Issue involves the following four
phases: assessment, remediation, testing and implementation. To date, AIMCO has
fully completed its assessment of all systems that could be significantly
affected by the Year 2000 Issue, and has begun the remediation, testing and
implementation phase on both hardware and software systems. AIMCO anticipates
having all phases complete by June 1, 1999.
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<PAGE>   208
 
     AIMCO believes that it has an effective program in place to resolve the
Year 2000 Issue in a timely manner and has appropriate contingency plans in
place for critical applications that could affect IPT's operations. To date,
AIMCO is not aware of any external agent with a Year 2000 Issue that would
materially impact IPT's results of operations, liquidity or capital resources.
However, AIMCO has no means of ensuring that external agents will be Year 2000
compliant. AIMCO does not believe that the inability of external agents to
complete their Year 2000 resolution process in a timely manner will have a
material impact on the financial position or results of operations of IPT.
However, the effect of non-compliance by external agents is not readily
determinable.
 
  Funds from Operations (FFO)
 
     IPT believes that FFO is a significant indicator of the strength of its
results. FFO represents net income (loss) (computed in accordance with GAAP),
excluding gains (or losses) from debt restructuring or sales of property, plus
depreciation of real property, and after adjustments for unconsolidated
partnerships and joint ventures. FFO should not be considered as an alternative
to net income or other measurements under GAAP as an indicator of operation
performance or to cash flows from operating, investing or financing activities
as a measure of liquidity. FFO does not reflect working capital changes, cash
expenditures for capital improvements or principal payments on indebtedness.
 
  Inflation
 
     Substantially all of the leases at the properties of the IPT Partnerships
are for a term of one year or less, which may enable IPT to seek increased rent
upon renewal of existing leases and upon the commencement of new leases. The
short-term nature of the leases generally serves to reduce the risk to IPT of
the adverse effects of inflation.
 
  SOP 98-5
 
     In 1998, the Accounting Standards Executive Committee issued Statement of
Position 98-5, Reporting on the Costs of Start-Up Activities ("SOP 98-5"), which
is effective for financial statements for fiscal years beginning after December
15, 1998. SOP 98-5 requires costs of start-up activities and organization costs
to be expensed as incurred. Initial application should be reported as the
cumulative effect of a change in accounting principle and expensed in the first
quarter in the year of adoption. At September 30, 1998, IPT had approximately $1
million (net of accumulated amortization) capitalized as organizational costs
that would be affected by the requirements of SOP 98-5.
 
  EITF 97-11
 
     IPT has not capitalized any internal costs in connection with identifying
and acquiring operating properties. Therefore, EITF 97-11 will have no effect on
IPT's financial statements.
 
IPT PARTNERSHIPS
 
     The following discussion pertains to the combined financial condition and
results of operations of those partnerships that constituted IPT Partnerships
during the applicable
 
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<PAGE>   209
 
periods. Please note that since the IPLP Exchange, the AIMCO Operating
Partnership is entitled to receive all of the economic rights and benefits in
substantially all of these partnerships. While this discussion is directed to
the IPT Partnerships in the aggregate, it is important to note that each IPT
Partnership is limited to its own resources and must accordingly manage its
capital resources.
 
  Financial Condition
 
     Each of the IPT Partnerships is governed by its specific partnership
agreement, and pursuant to each of those partnership agreements the general
partner of the applicable partnership has substantial authority over the
operations and financial position of the particular partnership. Further, the
partnership agreements generally render the issuance of additional equity
interests impractical and in many instances limit the amount and nature of
permitted mortgages or other indebtedness. Finally, certain changes of control
of the general partners of the IPT Partnerships that occurred during the last
three years have resulted in different philosophies with respect to operations,
rent changes and debt structure.
 
     IPT believes that each IPT Partnership has sufficient capital to meet its
operating and capital needs. At December 31, 1997, the IPT Partnerships held
approximately $106 million in cash and other liquid investments, which included
approximately $10 million held for distribution to partners, including IPT and
affiliates, in the first quarter 1998. At September 30, 1998, the IPT
Partnerships held approximately $146.1 million in cash and other liquid
investments.
 
     A majority of the mortgage loan financings of the IPT Partnerships was
obtained with the assistance of IFG over the last five years. Each mortgage loan
is single asset, non-recourse, non-cross-collateralized, fixed rate debt. The
aggregate outstanding balance of all such financings at September 30, 1998 and
December 31, 1997 was approximately $934.9 million and $680.2 million,
respectively.
 
     The mortgage loan financings completed by the IPT Partnerships can be
substantially grouped into three principal categories:
 
     - A series of whole loan financings specific to properties controlled by
       IFG completed in November 1992 with an affiliate of Lehman Brothers, Inc.
       ("Lehman Capital"). Each of the property loans bears interest at an
       annual rate of 7.6%, provides for monthly debt service based on a 23 year
       amortization and matures with a balloon payment due in November 2002.
       These loans comprised approximately 10% and 12% of the combined IPT
       Partnerships' outstanding debt at September 30, 1998 and December 31,
       1997, respectively.
 
     - A series of whole loan financings with Lehman Capital and Freddie Mac in
       December 1995 pursuant to which each loan bears interest at an annual
       rate of 6.95%. Payments are substantially interest only and the loans
       mature in December 2005. These loans comprised approximately 12% and 16%
       of the combined IPT Partnerships' outstanding debt at September 30, 1998
       and December 31, 1997, respectively.
 
     - A series of whole loan financings with Lehman Capital and Freddie Mac in
       September 1996 pursuant to which each loan bears interest at an annual
       rate of
 
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<PAGE>   210
 
       7.33%. Payments are interest only and the loans mature in September 2003.
       These loans comprised approximately 22% and 24% of the combined IPT
       Partnerships' outstanding debt at September 30, 1998 and December 31,
       1997, respectively.
 
     The IPT Partnerships require sufficient operating cash flows and capital
resources to maintain their properties and service their debt. Excess cash flows
are generally available for distribution to partners. Capital expenditures have
been substantial with respect to the assets owned by the IPT Partnerships.
 
     Upon gaining control of the general partners, IFG undertook to implement
property improvement programs intended to result in improving both the physical
condition and the appearance of the properties. This has been the case
particularly with respect to the properties owned by the Consolidated Capital
Partnerships, which IFG commenced managing in 1995, and with respect to the
properties owned by the National Property Partnerships and Century Properties
Partnerships, which IFG commenced managing in 1996. Aggregate capital
expenditures of the IPT Partnerships were approximately $44 million in 1996, and
approximately $32.6 million in 1997. IPT believes that the IPT Partnerships will
expend approximately $34.2 million on capital expenditures in 1998. As of
September 30, 1998, the IPT Partnerships have expended approximately $30.1
million on capital expenditures.
 
     Certain properties owned by IPT Partnerships are encumbered by mortgages in
amounts that constitute substantially all of the value of the properties.
Furthermore, one IPT Partnership, Century Properties Fund XVI, does not
currently generate cash flow after payment of debt services and required capital
expenditures. However, IPT does not believe that any of these investments will
be lost. Additionally, if these properties were lost, the combined loss of these
investments would not have a material adverse effect on the combined IPT
Partnerships or IPT.
 
  Results of Operations
 
     Each IPT Partnership is essentially a closed end investment vehicle.
Accordingly, the primary factors affecting operating results are changes in
rental income, changes in property operating expenses, changes in debt financing
and dispositions of asset investments during the period. The following
discussion summarizes certain operating statement data included in the Combined
Financial Statements of IPT. The same data is also discussed for only those
properties that were included in operating results for the full year in each
period ("Comparable" property results).
 
 Nine Months Ended September 30, 1998 Compared to Nine Months ended September
 30, 1997
 
     IPT's FFO growth is attributable to both acquisition activity and internal
growth. Acquisitions at cost (excluding AMIT Merger activity) were an aggregate
of approximately $74 million from July 1, 1997 to September 30, 1998. However,
comparable operations of properties owned by IPT Partnerships during the first
nine months of both 1998 and 1997 met or exceeded management's expectations.
 
     Comparable property revenues grew by 2.3% for the first nine months of 1998
compared to the corresponding period in 1997. The growth was primarily
attributable to
 
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the average increase in rental rates year to year, increases in the average
occupancy of approximately 0.5%, and the renovation and re-leasing of The
Sterling in Philadelphia. Conversely, comparable property revenues decreased
1.75% for the three months ended September 30, 1998 as compared to the same
period in 1997. Operating expenses declined approximately 8.3% for the three
months and 5.3% for the nine months ended September 30, 1998, respectively. The
reduction in expenses was primarily the result of above normal levels of
maintenance incurred in 1997 as management implemented plans to improve the
overall appearance of the properties. Recurring operating expenses remained
relatively flat. Results from comparable partnerships resulting from the
comparable revenue and expense changes accounted for FFO growth of 28.8% and
24.2% for the three and nine months ended September 30, 1998, respectively. The
remaining FFO growth is attributable to acquisitions.
 
  Fiscal Year 1997 Compared to Fiscal Year 1996
 
     Property revenues for the year ended December 31, 1997 increased 14.4% from
the year ended December 31, 1996. The property revenue growth was primarily due
to increased ownership in a greater number of properties during the period as a
result of tender offers extended during 1997. This growth was partially offset
by the effects of one property foreclosed upon during 1996 and three properties
sold during the last half of 1997. Comparable property revenues increased
slightly by 1.6%. The property revenue growth is a function of the favorable
market for rental rate increases and the improved conditions and appearance of
the subject properties. Property operating expenses increased 9.3% for the year
ended December 31, 1997 as a result of the 1997 tender offers, offset by 1997
property sales and the 1996 property foreclosure. Comparable property operating
expenses decreased 2.9% for the year ended December 31, 1997 compared to the
year ended December 31, 1996.
 
     Interest expense of the IPT Partnerships increased 8.4% for the year ended
December 31, 1997 primarily as a result of owning an interest in a greater
number of properties for the period as discussed above. Conversely, with respect
to properties owned throughout both periods, interest expense decreased 1.6%.
The decrease resulted primarily as a result of the aggregate mortgage balances
decreasing as a result of the refinancings that occurred in the second half of
1996 and a reduction in the interest rates for the related mortgages.
Administrative expenses decreased 11.3% for the year ended December 31, 1997 as
compared to the same period in 1996 after adjusting for properties owned
throughout both periods. The decrease in administrative expenses primarily
resulted from IFG's economies of scale being applied to all of the IPT
Partnerships by the second half of 1996. Depreciation expense increased 13.2%
for the year ended December 31, 1997 compared to the year ended December 31,
1996 due to owning an interest in more properties during the period as a result
of the 1997 tender offers, slightly offset by property sales.
 
     As a result of the foregoing factors, funds from operations improved by
34.2% and the income from operations increased by $10 million for the year ended
December 31, 1997 as compared to the same period in 1996. With respect to
properties owned throughout both periods, funds from operations increased 19.6%
and income from operations increased $10 million.
 
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<PAGE>   212
 
  Fiscal Year 1996 Compared to Fiscal Year 1995
 
     Property revenues for the year ended December 31, 1996 increased by 3.6%
from the year ended December 31, 1995. This increase was a result of a 5.6%
growth in comparable property revenues offset by the effects of three properties
sold during 1996 and four properties sold during 1995.
 
     Average occupancy was approximately 94% in each period. The property
revenue growth was a function of the favorable market for rental rate increases
and the improved condition and appearance of the subject properties.
 
     Property operating expenses increased by 4.9% due to a 7.4% increase for
the properties owned throughout the two periods reduced by the effect of the
property dispositions during 1995 and 1996. Approximately $4 million (or 3.0%)
of the increased expenses was directly attributable to the general improvement
program for the properties and related to periodic major maintenance expenses,
such as exterior painting and general landscaping changes. The remaining 4.4%
increase in comparable property operating expenses is primarily attributable to
increased costs of operations.
 
     Interest expense of the IPT Partnerships declined by 5.6%, with a decline
of 3.4% attributable solely to properties owned at the end of 1996. This decline
resulted primarily from the December 1995 refinancing which reduced the related
interest rates to 6.95%, and to a lesser extent from the September 1996
refinancing which reduced related interest rates to 7.33%. These rates permitted
a reduction in total interest expense notwithstanding that the aggregate
mortgage balances increased by approximately $50 million in those refinancing
transactions. The increase in administrative expenses from 1994 to 1995 was
reversed and administrative expenses decreased further as a result of IFG's
economies of scale being applied to all of the IPT Partnerships by the second
half of 1996.
 
     Depreciation of the IPT Partnerships declined modestly because the effect
of property sales was greater than the increase caused by capital expenditures,
and the writedown of assets in 1995 resulting from IFG's analysis of property
carrying values was not present in 1996.
 
     As a result of the foregoing factors, funds from operations improved by
19.0% and the net loss declined from $17.1 million to approximately $0.7
million. With respect to properties owned throughout both periods, funds from
operations improved 20.0% and loss from operations improved $15.6 million.
 
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<PAGE>   213
 
                BOARD OF TRUSTEES AND EXECUTIVE OFFICERS OF IPT
 
     The following sets forth certain information with respect to the trustees
and new executive officers of IPT.
 
IPT BOARD
 
     The current IPT Board consists of eleven members, six of whom also serve as
officers of AIMCO (including two who are also directors of AIMCO). The trustees
are classified, with respect to the terms for which they severally hold office,
into separate classes in the manner prescribed in the IPT Declaration.
 
     All of the trustees and officers of IPT are citizens of the United States.
 
     The following table identifies the Continuing Trustees, together with their
respective ages and positions with IPT. Each Continuing Trustee will serve until
his term is completed, unless he is removed or resigns prior to completing his
term. All Continuing Trustees will be removed from office upon consummation of
the Merger.
 
  Continuing Trustees
 
<TABLE>
<CAPTION>
                          NAME                            AGE       POSITION
                          ----                            ---   -----------------
<S>                                                       <C>   <C>
Andrew L. Farkas........................................  38    Chairman, Trustee
James A. Aston..........................................  46    Trustee
Frank M. Garrison.......................................  43    Trustee
Warren M. Eckstein......................................  38    Trustee
Bryan L. Herrmann.......................................  62    Trustee
</TABLE>
 
     The following is a biographical summary of the experience for the past five
years or more of the Continuing Trustees.
 
     Andrew L. Farkas. Mr. Farkas has served as a trustee of IPT since December
1996 and served as the Chairman and the Chief Executive Officer of IPT since
January 1997. Mr. Farkas was Chairman and Chief Executive Officer of IFG from
January 1991 until October 1998 and President from May 1995 until October 1998.
Currently, Mr. Farkas serves as the Chairman and Chief Executive Officer of New
Insignia. Mr. Farkas has been President of Metropolitan Asset Group, Ltd., a
real estate investment banking firm, since 1983. Mr. Farkas is involved in IPT
affairs only to the extent of strategic planning and capital formation. Mr.
Farkas' term as a trustee of IPT will expire at the annual meeting of the
shareholders of IPT held in the year 2000.
 
     James A. Aston. Mr. Aston has served as a trustee of IPT since December
1996. Mr. Aston also served as President of IPT from May 1996 until October 1,
1998. Mr. Aston's principal employment had been with IFG for more than the past
five years. Mr. Aston currently serves as the Chief Financial Officer of New
Insignia and is a member of the Office of Chairman of New Insignia. Mr. Aston's
term as a trustee of IPT will expire at the annual meeting of the shareholders
of IPT held in the year 1999.
 
     Frank M. Garrison. Mr. Garrison has served as a trustee of IPT since
December 1996. He also served in various other officer capacities with IPT
between
 
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<PAGE>   214
 
December 1996 and October 1998. Mr. Garrison's principal employment had been
with IFG for more than the past five years. He currently serves as a member of
the Office of Chairman of New Insignia. Mr. Garrison's term as a trustee of IPT
will expire at the annual meeting of the shareholders of IPT held in the year
2001.
 
     Warren M. Eckstein. Mr. Eckstein was appointed as a trustee of IPT in
September 1998. Mr. Eckstein has been a Managing Director at Warburg Dillon Reed
since the fall of 1998. Mr. Eckstein was a Managing Director -- Investment
Banking of PaineWebber Incorporated from October 1996 until the fall of 1998.
Prior to October 1996, Mr. Eckstein served as Senior Vice President, Investment
Banking, of Dillon, Reed & Co., Inc. Mr. Eckstein's term as a trustee of IPT
will expire at the annual meeting of the shareholders of IPT held in the year
1999.
 
     Bryan L. Herrmann. Mr. Herrmann was appointed as a trustee of IPT in
September 1998. Mr. Herrmann is an investment banker by background and currently
is Chairman and Chief Executive Officer of Base Camp 9 Corp., a position he has
held since 1990. Mr. Herrmann is also a member of the board of directors of
Wynn's International, Inc., a public company. Mr. Herrmann's term as a trustee
of IPT will expire at the annual meeting of the shareholders of IPT held in the
year 2001.
 
     The following table identifies the AIMCO-nominated Trustees and the
executive officers, together with their respective ages and positions with IPT.
Each AIMCO-nominated Trustee will serve until his term is completed, unless he
is removed or resigns prior to completing his term. Each executive officer will
serve for one year and until his successor is appointed by the IPT Board and he
or she qualifies.
 
  AIMCO-nominated Trustees and Executive Officers
 
<TABLE>
<CAPTION>
NAME                        AGE                            POSITIONS
- ----                        ---                            ---------
<S>                         <C>   <C>
Terry Considine...........  51    Trustee and Chief Executive Officer
Peter K. Kompaniez........  53    Trustee, President
Joel F. Bonder............  50    Executive Vice President, General Counsel and Assistant
                                  Secretary
Patrick J. Foye...........  41    Trustee, Executive Vice President
Robert Ty Howard..........  40    Executive Vice President -- Ancillary Services
Steven D. Ira.............  47    Trustee, Executive Vice President
Thomas W. Toomey..........  37    Trustee, Executive Vice President -- Finance and
                                  Administration
Harry G. Alcock...........  34    Trustee, Senior Vice President -- Acquisitions
Troy D. Butts.............  34    Senior Vice President and Chief Financial Officer
Jeffrey P. Cohen..........  30    Secretary
</TABLE>
 
     The following is a biographical summary of the experience for the past five
years or more of the AIMCO-nominated Trustees and the executive officers of IPT.
 
     Terry Considine. Mr. Considine was elected as a trustee, Chairman of the
IPT Board and Chief Executive Officer of IPT on October 1, 1998. He has served
as Chairman of the Board of Directors and Chief Executive Officer of AIMCO since
July 1994 and was President until July 1997. He is the sole owner of Considine
Investment Co. and prior to July 1994 was owner of approximately 75% of PAM, one
of AIMCO's predecessors. On
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<PAGE>   215
 
October 1, 1996, Mr. Considine was appointed Co-Chairman and director of Asset
Investors Corp. and Commercial Asset Investors, Inc., two other public REITs,
and appointed as a director of Financial Assets Management, LLC, a REIT manager.
Mr. Considine has been involved as a principal in a variety of real estate
activities, including the acquisition, renovation, development and disposition
of properties. Mr. Considine has also controlled entities engaged in other
businesses such as television broadcasting, gasoline distribution and
environmental laboratories. Mr. Considine received a B.A. from Harvard College,
a J.D. from Harvard Law School and is admitted as a member of, but currently has
an inactive status with, the Massachusetts Bar. Mr. Considine's term as a
trustee of IPT will expire at the annual meeting of the shareholders of IPT held
in the year 2001.
 
     Mr. Considine has had substantial multifamily real estate experience. From
1975 through July 1994, partnerships or other entities in which Mr. Considine
had controlling interests invested in approximately 35 multifamily apartment
properties and commercial real estate properties. Six of these real estate
assets (four of which were multifamily apartment properties and two of which
were office properties) did not generate sufficient cash flow to service their
related indebtedness and were foreclosed upon by their lenders, causing pre-tax
losses of approximately $11.9 million to investors and losses of approximately
$2.7 million to Mr. Considine.
 
     Peter Kompaniez. Mr. Kompaniez was elected as a trustee and President of
IPT on October 1, 1998. He has been Vice Chairman, President and a director of
AIMCO since July 1994 and was appointed President in July 1997. Since September
1993, Mr. Kompaniez has owned 75% of PDI, one of AIMCO's predecessors, and
serves as its President and Chief Executive Officer. From 1986 to 1993, he
served as President and Chief Executive Officer of HFC. While at HFC, Mr.
Kompaniez administered the acquisition, development and disposition of
approximately 8,150 apartment units (including 6,217 units that have been
acquired by AIMCO) and 3.1 million square feet of commercial real estate. Prior
to joining HFC, Mr. Kompaniez was a senior partner with the law firm of Loeb and
Loeb where he had extensive real estate and REIT experience. Mr. Kompaniez
received a B.A. from Yale College and a J.D. from the University of California
(Boalt Hall). Mr. Kompaniez's term as a trustee of IPT will expire at the annual
meeting of the shareholders of IPT held in the year 2001.
 
     The downturn in the real estate markets in the late 1980s and early 1990s
adversely affected the United States real estate operations of the Heron Group.
During this period from 1986 to 1993, Mr. Kompaniez served as President and
Chief Executive Officer of HFC, and as a director or officer of certain other
Heron Group entities. In 1993, HFC, its parent Heron International, and certain
other members of the Heron Group voluntarily entered into restructuring
agreements with separate groups of their United States and international
creditors. The restructuring agreement for the United States members of the
Heron Group generally provided for the joint assumption of certain liabilities
and the pledge of unencumbered assets in support of such liabilities for the
benefit of their United States creditors. As a result of the restructuring, the
operations and assets of the United States members of the Heron Group were
generally separated from those of Heron International and its non-United States
subsidiaries. At the conclusion of the restructuring, Mr. Kompaniez commenced
the operations of PDI, which was engaged to act as asset and corporate manager
of the continuing United States operations of HFC and the other
 
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<PAGE>   216
 
United States Heron Group members for the benefit of the United States
creditors. In connection with certain transactions effected at the time of the
initial public offering of AIMCO Common Stock, Mr. Kompaniez was appointed Vice
Chairman of AIMCO and substantially all of the property management assets of PDI
were transferred or assigned to AIMCO.
 
     Joel F. Bonder. Mr. Bonder was appointed as Executive Vice President,
General Counsel and Secretary of IPT on October 1, 1998. He has served as
Executive Vice President and General Counsel of AIMCO since December 1997. Prior
to joining AIMCO, Mr. Bonder served as Senior Vice President and General Counsel
of NHP from April 1994 until December 1997. Mr. Bonder served as Vice President
and Deputy General Counsel of NHP from June 1991 to March 1994 and as Associate
General Counsel of NHP from 1986 to 1991. From 1983 to 1985, Mr. Bonder was with
the Washington, D.C. law firm of Lane & Edson, P.C. From 1979 to 1983, Mr.
Bonder practiced with the Chicago law firm of Ross and Hardies. Mr. Bonder
received an A.B. from the University of Rochester and a J.D. from Washington
University School of Law.
 
     Patrick J. Foye. Mr. Foye was elected as a trustee of IPT on October 1,
1998. He has served as Executive Vice President of AIMCO since May 1998. Prior
to joining AIMCO, Mr. Foye was a partner in the law firm of Skadden, Arps,
Slate, Meagher & Flom LLP from 1989 to 1998 and was managing Partner of the
firm's Brussels, Budapest and Moscow offices from 1992 through 1994. Mr. Foye is
also Deputy Chairman of the Long Island Power authority and serves as a member
of the New York State Privatization Council. He received a B.A. from Fordham
College and a J.D. from Fordham University Law School. Mr. Foye's term as a
trustee of IPT will expire at the annual meeting of the shareholders of IPT held
in the year 2000.
 
     Robert Ty Howard. Mr. Howard was appointed Executive Vice
President -- Ancillary Services of IPT on October 1, 1998. He was appointed
Executive Vice President -- Ancillary Services of AIMCO in February 1998. Prior
to joining AIMCO, Mr. Howard served as an officer and/or director of four
affiliated companies, Hecco Ventures, Craig Corporation, Reading Company and
Decurion Corporation. Mr. Howard was responsible for financing, mergers and
acquisitions activities, investments in commercial real estate, both nationally
and internationally, cinema development and interest rate risk management. From
1983 to 1988, he was employed by Spieker Properties. Mr. Howard received a B.A.
from Amherst College, a J.D. from Harvard Law School and an M.B.A. from Stanford
University Graduate School of Business.
 
     Steven D. Ira. Mr. Ira was elected as a trustee and Executive Vice
President of IPT on October 1, 1998. He is a Co-Founder of AIMCO and has served
as Executive Vice President of AIMCO since July 1994. From 1987 until July 1994,
he served as President of PAM. Prior to merging his firm with PAM in 1987, Mr.
Ira acquired extensive experience in property management. Between 1977 and 1981,
he supervised the property management of over 3,000 apartment and mobile home
units in Colorado, Michigan, Pennsylvania and Florida, and in 1981 he joined
with others to form the property management firm of McDermott, Stein and Ira.
Mr. Ira served for several years on the National Apartment Manager Accreditation
Board and is a former president of both the National Apartment Association and
the Colorado Apartment Association. Mr. Ira is the sixth individual elected to
the Hall of Fame of the National Apartment Association in its 54-year history.
He holds a Certified Apartment Property Supervisor (CAPS) and a
 
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<PAGE>   217
 
Certified Apartment Manager designation from the National Apartment Association,
a Certified Property Manager (CPM) designation from the National Institute of
Real Estate Management (IREM) and he is a member of the Boards of Directors of
the National Multi-Housing Council, the National Apartment Association and the
Apartment Association of Metro Denver. Mr. Ira received a B.S. from Metropolitan
State College in 1975. Mr. Ira's term as a trustee of IPT will expire at the
annual meeting of the shareholders of IPT held in the year 2000.
 
     Thomas W. Toomey. Mr. Toomey was elected as a trustee and Executive Vice
President -- Finance and Administration of IPT on October 1, 1998. He has served
as Senior Vice President -- Finance and Administration of AIMCO since January
1996 and was promoted to Executive Vice President -- Finance and Administration
of AIMCO in March 1997. From 1990 until 1995, Mr. Toomey served in a similar
capacity with LPC as Vice President/Senior Controller and Director of
Administrative Services of Lincoln Property Services where he was responsible
for LPC's computer systems, accounting, tax, treasury services and benefits
administration. From 1984 to 1990, he was an audit manager with Arthur Andersen
& Co. where he served real estate and banking clients. From 1981 to 1983, Mr.
Toomey was on the audit staff of Kenneth Leventhal & Company. Mr. Toomey
received a B.S. in Business Administration/Finance from Oregon State University
and is a Certified Public Accountant. Mr. Toomey's term as a trustee of IPT will
expire at the annual meeting of the shareholders of IPT held in the year 1999.
 
     Harry G. Alcock. Mr. Alcock was elected as a trustee and Senior Vice
President -- Acquisitions of IPT on October 1, 1998. He has served as a Vice
President of AIMCO since July 1996, and was promoted to Senior Vice
President -- Acquisitions of AIMCO in October 1997, with responsibility for
acquisition and financing activities since July 1994. From June 1992 until July
1994, Mr. Alcock served as Senior Financial Analyst for PDI and HFC. From 1988
to 1992, Mr. Alcock worked for Larwin Development Corp., a Los Angeles based
real estate developer, with responsibility for raising debt and joint venture
equity to fund land acquisitions and development. From 1987 to 1988, Mr. Alcock
worked for Ford Aerospace Corp. He received his B.S. from San Jose State
University. Mr. Alcock's term as a trustee of IPT will expire at the annual
meeting of the shareholders of IPT held in the year 1999.
 
     Troy D. Butts. Mr. Butts was appointed Senior Vice President and Chief
Financial Officer on October 1, 1998. He has served as Senior Vice President and
Chief Financial Officer of AIMCO since November 1997. Prior to joining AIMCO,
Mr. Butts served as a Senior Manager in the audit practice of the Real Estate
Services Group for Arthur Andersen LLP in Dallas, Texas. Mr. Butts was employed
by Arthur Andersen LLP for ten years and his clients were primarily
publicly-held real estate companies, including office and multi-family REITs.
Mr. Butts holds a Bachelor of Business Administration degree in Accounting from
Angelo State University and is a Certified Public Accountant.
 
     Jeffrey P. Cohen. Mr. Cohen has served in various capacities with IPT since
June 1997 and currently serves as Secretary of IPT. Between April 1997 and
October 1998, Mr. Cohen's principal occupation was to serve as a Senior Vice
President -- Investment Banking of IFG. Mr. Cohen currently serves as a Senior
Vice President -- Investment Banking for New Insignia. Prior to April 1997, Mr.
Cohen's principal occupation was as an attorney with the law firm of Rogers &
Wells, New York, New York.
 
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<PAGE>   218
 
                         PRINCIPAL SHAREHOLDERS OF IPT
 
     The following table sets forth certain information regarding the beneficial
ownership of IPT Common Shares by (i) each person who is known to be a
beneficial owner of more than 5% of the outstanding IPT Common Shares, (ii) each
current and former trustee of IPT, and (iii) the current and former trustees and
executive officers of IPT as a group, in each case as of December 31, 1998.
Unless otherwise indicated in the footnotes, all of such IPT Common Shares are
owned directly, and the indicated person has sole voting and investment power
with respect thereto.
 
     As of December 31, 1998, there were 23,484,538 IPT Common Shares
outstanding and 9,934,475 IPLP OP Units outstanding not held by IPT. IPLP OP
Units are exchangeable after a one year holding period to IPT Common Shares or
cash, at IPT's option.
 
<TABLE>
<CAPTION>
                                                          NUMBER OF
                                                            SHARES
                                                         BENEFICIALLY   % OF CLASS
NAME OF OWNER OR IDENTITY OF GROUP                          OWNED       OUTSTANDING
- ----------------------------------                       ------------   -----------
<S>                                                      <C>            <C>
AIMCO(1)...............................................   21,968,031       65.7%
Andrew L. Farkas(2)....................................      982,662        4.2%
James A. Aston(3)(4)...................................      108,000        0.5%
Frank M. Garrison(3)(4)................................      105,400        0.5%
Ronald Uretta(3)(4)(5).................................      105,300        0.5%
Warren Eckstein(6).....................................        2,000       *
Ronald J. Consiglio(5).................................       22,360        0.1%
Bryan L. Herrmann(6)...................................        8,898       *
Terry Considine........................................           --       *
Peter K. Kompaniez.....................................           --       *
Patrick J. Foye........................................           --       *
Steven D. Ira..........................................           --       *
Thomas W. Toomey.......................................           --       *
Harry G. Alcock........................................           --       *
All trustees and executive officers as a group (17
  individuals)(7)......................................    1,386,866        5.9%
</TABLE>
 
- -------------------------
 
  *  Indicates less than 0.1%.
 
 (1) Includes the 9,934,475 IPLP OP Units held by the AIMCO Operating
     Partnership, a subsidiary of AIMCO, that are exchangeable at the AIMCO
     Operating Partnership's election for consideration consisting, at IPT's
     option, of cash or IPT Common Shares.
 
 (2) Includes 122,500 restricted IPT Common Shares owned by such person as well
     as 807,262 IPT Common Shares owned by a partnership controlled by such
     person.
 
 (3) Includes certain IPT Common Shares owned by such individual's immediate
     family.
 
 (4) Includes 81,663 restricted IPT Common Shares owned by such person.
 
 (5) Resigned from IPT Board as of October 1, 1998.
 
 (6) Includes 1,000 restricted IPT Common Shares owned by such person.
 
 (7) Includes former executive officers, Messrs. Cohen, Jarrard, Falls, and
     Vinson, and former IPT trustees, Messrs. Uretta and Consiglio, as well as
     the current trustees and executive officers of IPT.
 
                                       212
<PAGE>   219
 
                      DESCRIPTION OF COMMON STOCK OF AIMCO
 
GENERAL
 
     AIMCO's Charter authorizes the issuance of up to 510,750,000 shares of
stock with a par value of $.01 per share, of which, as of December 31, 1998,
484,027,500 shares were classified as AIMCO Common Stock. As of December 31,
1998, there were 48,451,380 shares of AIMCO Common Stock issued and outstanding.
In addition, up to 150,000 shares of AIMCO Common Stock have been reserved for
issuance under AIMCO's 1994 Stock Option Plan, up to 500,000 shares of AIMCO
Common Stock have been reserved for issuance under AIMCO's 1996 Stock Award and
Incentive Plan, up to 500,000 shares of AIMCO Common Stock have been reserved
for issuance under AIMCO's Non-Qualified Stock Option Plan, and up to 20,000,000
shares of AIMCO Common Stock has been reserved under AIMCO's 1997 Stock Award
and Incentive Plan. The AIMCO Common Stock is traded on the NYSE under the
symbol "AIV." BankBoston, N.A. serves as transfer agent and registrar of the
AIMCO Common Stock. As of January 19, 1999, AIMCO's Charter authorized 750,000
shares of Class B Preferred Stock, all of which were issued and outstanding;
2,760,000 shares of Class C Preferred Stock, of which 2,400,000 shares were
issued and outstanding; 4,600,000 shares of Class D Preferred Stock, of which
4,200,000 shares were issued and outstanding; 4,050,000 shares of Class G
Preferred Stock, all of which shares were issued and outstanding; 2,300,000
shares of Class H Preferred Stock, of which 2,000,000 shares were issued and
outstanding; 2,000,000 shares of Class J Cumulative Convertible Preferred Stock,
par value $.01 per share of AIMCO ("Class J Preferred Stock") of which 1,250,000
shares were issued and outstanding.
 
RESTRICTIONS ON TRANSFER
 
     For AIMCO to qualify as a REIT under the Code, not more than 50% in value
of its outstanding stock may be owned, directly or indirectly, by five or fewer
individuals (as defined in the Code to include certain entities) during the last
half of a taxable year and the shares of stock must be beneficially owned by 100
or more persons during at least 335 days of a taxable year of 12 months or
during a proportionate part of a shorter taxable year. Because the Board of
Directors of AIMCO believes that it is essential for AIMCO to continue to
qualify as a REIT and to provide additional protection for AIMCO's stockholders
in the event of certain transactions, the Board of Directors of AIMCO has
adopted, and the stockholders have approved, provisions of AIMCO's Charter
restricting the acquisition of shares of AIMCO Common Stock.
 
     Subject to certain exceptions specified in AIMCO's Charter, no holder may
own, or be deemed to own by virtue of various attribution and constructive
ownership provisions of the Code and Rule 13d-3 under the Exchange Act, more
than 8.7% (or 15% in the case of certain pension trusts described in the Code,
investment companies registered under the Investment Company Act of 1940 and Mr.
Considine) of the outstanding shares of AIMCO Common Stock ("Ownership Limit").
For purposes of calculating the amount of stock owned by a given individual, the
individual's AIMCO Common Stock and OP Units are aggregated. The Board of
Directors of AIMCO may waive the Ownership Limit if evidence satisfactory to the
Board of Directors of AIMCO and AIMCO's tax counsel is presented that such
ownership will not then or in the future jeopardize AIMCO's status as
 
                                       213
<PAGE>   220
 
a REIT. However, in no event may such holder's, direct or indirect, ownership of
AIMCO Common Stock exceed 9.8% of the total outstanding shares of AIMCO Common
Stock. As a condition of such waiver, the Board of Directors of AIMCO may
require opinions of counsel satisfactory to it and/or an undertaking from the
applicant with respect to preserving the REIT status of AIMCO. The foregoing
restrictions on transferability and ownership will not apply if the Board of
Directors of AIMCO determines that it is no longer in the best interests of
AIMCO to attempt to qualify, or to continue to qualify as a REIT and a
resolution terminating AIMCO's status as a REIT and amending AIMCO's Charter to
remove the foregoing restrictions is duly adopted by the Board of Directors of
AIMCO and a majority of AIMCO's stockholders. If shares of AIMCO Common Stock in
excess of the Ownership Limit, or shares of AIMCO Common Stock which would cause
the REIT to be beneficially owned by fewer than 100 persons, or which would
result in AIMCO being "closely held," within the meaning of Section 856(h) of
the Code, or which would otherwise result in AIMCO failing to qualify as a REIT,
are issued or transferred to any person, such issuance or transfer shall be null
and void to the intended transferee, and the intended transferee would acquire
no rights to the stock. Shares of AIMCO Common Stock transferred in excess of
the Ownership Limit or other applicable limitations will automatically be
transferred to a trust for the exclusive benefit of one or more qualifying
charitable organizations to be designated by AIMCO. Shares transferred to such
trust will remain outstanding, and the trustee of the trust will have all voting
and dividend rights pertaining to such shares. The trustee of such trust may
transfer such shares to a person whose ownership of such shares does not violate
the Ownership Limit or other applicable limitation. Upon a sale of such shares
by the trustee, the interest of the charitable beneficiary will terminate, and
the sales proceeds would be paid, first, to the original intended transferee, to
the extent of the lesser of (a) such transferee's original purchase price (or
the original market value of such shares if purportedly acquired by gift or
devise) and (b) the price received by the trustee, and, second, any remainder to
the charitable beneficiary. In addition, shares of AIMCO Common Stock held in
such trust are purchasable by AIMCO for a 90-day period at a price equal to the
lesser of the price paid for the AIMCO Common Stock by the original intended
transferee (or the original market value of such shares if purportedly acquired
by gift or devise) and the market price for the AIMCO Common Stock on the date
that AIMCO determines to purchase the stock. The 90-day period commences on the
date of the violative transfer or the date that the Board of Directors of AIMCO
determines in good faith that a violative transfer has occurred, whichever is
later. All certificates representing shares of AIMCO Common Stock, including the
shares offered hereby, bear a legend referring to the restrictions described
above.
 
     All persons who own, directly or by virtue of the attribution provisions of
the Code and Rule 13d-3 under the Exchange Act, more than a specified percentage
of the outstanding shares of AIMCO Common Stock must file a written statement or
an affidavit with AIMCO containing the information specified in AIMCO's Charter
within 30 days after January 1 of each year. In addition, each stockholder shall
upon demand be required to disclose to AIMCO in writing such information with
respect to the direct, indirect and constructive ownership of shares as the
Board of Directors of AIMCO deems necessary to comply with the provisions of the
Code applicable to a REIT or to comply with the requirements of any taxing
authority or governmental agency.
 
                                       214
<PAGE>   221
 
     The ownership limitations may have the effect of precluding acquisition of
control of AIMCO by a third party unless the Board of Directors of AIMCO
determines that maintenance of REIT status is no longer in the best interests of
AIMCO.
 
BUSINESS COMBINATIONS
 
     Under the MGCL, certain "business combinations" (including a merger,
consolidation, share exchange or, in certain circumstances, an asset transfer or
issuance or reclassification of equity securities) between a Maryland
corporation and any person who beneficially owns 10% or more of the voting power
of the corporation's shares or an affiliate or associate (as defined in the
MGCL) of the corporation who, at any time within the two-year period prior to
the date in question, was the beneficial owner of 10% or more of the voting
power of the then-outstanding voting stock of the corporation (an "Interested
Stockholder") or an affiliate thereof are prohibited for five years after the
most recent date on which the Interested Stockholder became an Interested
Stockholder. Thereafter, any such business combination must be recommended by
the board of directors of the corporation and approved by the affirmative vote
of at least (a) 80% of the votes entitled to be cast by holders of outstanding
voting shares of the corporation, voting together as a single voting group, and
(b) two-thirds of the votes entitled to be cast by holders of outstanding voting
shares of the corporation other than shares held by the Interested Stockholder
or an affiliate or associate of the Interested Stockholder with whom the
business combination is to be effected, unless, among other conditions, the
corporation's stockholders receive a minimum price (as defined in the MGCL) for
their shares and the consideration is received in cash or in the same form as
previously paid by the Interested Stockholder for its shares. The business
combination statute could have the effect of discouraging offers to acquire
AIMCO and of increasing the difficulty of consummating any such offer. These
provisions of the MGCL do not apply, however, to business combinations that are
approved or exempted by the board of directors of the corporation prior to the
time that the Interested Stockholder becomes an Interested Stockholder.
 
CONTROL SHARE ACQUISITIONS
 
     The MGCL provides that "control shares" of a Maryland corporation acquired
in a "control share acquisition" have no voting rights except to the extent
approved by a vote of two-thirds of the votes entitled to be cast on the matter,
excluding shares of stock owned by the acquiror or by officers or directors who
are employees of the corporation. "Control shares" are voting shares of stock
that, if aggregated with all other shares of stock previously acquired by that
person, or in respect of which that person is able to exercise or direct the
exercise of voting power (except solely by virtue of a revocable proxy) would
entitle the acquiror to exercise voting power in electing directors within one
of the following ranges of voting power: (i) one-fifth or more but less than
one-third, (ii) one-third or more but less than a majority or (iii) a majority
or more of all voting power. Control shares do not include shares the acquiring
person is then entitled to vote as a result of having previously obtained
stockholder approval.
 
     A "control share acquisition" means the acquisition of control shares,
subject to certain exceptions. A person who has made or proposes to make a
control share acquisition, upon satisfaction of certain conditions (including an
undertaking to pay expenses), may compel the corporation's board of directors to
call a special meeting of
 
                                       215
<PAGE>   222
 
stockholders, to be held within 50 days of demand, to consider the voting rights
of the shares. If no request for a meeting is made, the corporation may itself
present the question at any stockholders meeting.
 
     If voting rights are not approved at the meeting or if the acquiring person
does not deliver an "acquiring person statement" as required by the statute,
then, subject to certain conditions and limitations, the corporation may redeem
any or all of the control shares (except those for which voting rights have
previously been approved) for fair value determined, without regard to the
absence of voting rights, as of the date of the last control share acquisition
by the acquiror or of any meeting of stockholders at which the voting rights of
such shares were considered and not approved. If voting rights for control
shares are approved at a stockholders meeting and the acquiror becomes entitled
to vote a majority of the shares entitled to vote, all other stockholders may
exercise appraisal rights. The fair value of the shares as determined for
purposes of the appraisal rights may not be less than the highest price per
share paid in the control share acquisition, and certain limitations and
restrictions otherwise applicable to the exercise of dissenters' rights do not
apply in the context of a control share acquisition.
 
     The control share acquisition statute does not apply to shares acquired in
a merger, consolidation or share exchange if the corporation is a party to the
transaction, or to acquisitions approved or exempted by the corporation's
charter or bylaws prior to the control share acquisition. No such exemption
appears in AIMCO's Charter or in AIMCO's bylaws. The control share acquisition
statute could have the effect of discouraging offers to acquire AIMCO and of
increasing the difficulty of consummating any such offer.
 
AIMCO COMMON STOCK
 
     Holders of the AIMCO Common Stock are entitled to receive dividends, when
and as authorized by the Board of Directors of AIMCO, out of funds legally
available therefor. The holders of shares of AIMCO Common Stock, upon any
liquidation, dissolution or winding-up of AIMCO, are entitled to receive ratably
any assets remaining after payment in full of all liabilities of AIMCO and the
liquidation preferences of preferred stock. The shares of AIMCO Common Stock
possess voting rights for the election of directors and in respect of other
corporate matters, each share entitling the holder thereof to one vote. Holders
of shares of AIMCO Common Stock do not have cumulative voting rights in the
election of directors. Holders of shares of AIMCO Common Stock do not have
preemptive rights, which means they have no right to acquire any additional
shares of AIMCO Common Stock that may be issued by AIMCO at a subsequent date.
 
                                       216
<PAGE>   223
 
                    DESCRIPTION OF PREFERRED STOCK OF AIMCO
 
GENERAL
 
     AIMCO may issue, from time to time, shares of one or more series or classes
of preferred stock. The following summary of certain provisions of the preferred
stock does not purport to be complete and is subject to, and is qualified in its
entirety by express reference to, the provisions of AIMCO's Charter relating to
a specific series of the preferred stock.
 
     AIMCO's Charter authorizes the issuance of up to 510,750,000 shares of its
stock. As of January 19, 1999, in addition to 484,027,500 shares of AIMCO Common
Stock, 750,000 shares were classified as Class B Preferred Stock, 2,760,000
shares were classified as Class C Preferred Stock, 4,600,000 shares were
classified as Class D Preferred Stock, 4,050,000 shares were classified as Class
G Preferred Stock, 2,300,000 shares were classified as Class H Preferred Stock
and 2,000,000 shares were classified as Class J Preferred Stock. Under AIMCO's
Charter, the Board of Directors of AIMCO has the authority to classify and
reclassify any of its unissued capital stock into shares of preferred stock by
setting or changing in any one or more respects the preferences, conversion or
other rights, voting powers, restrictions, limitations as to dividends,
qualifications or terms or conditions of redemption of such shares of stock
including, but not limited to, ownership restrictions consistent with the
Ownership Limit with respect to each series or class of capital stock, and the
number of shares constituting each series or class, and to increase or decrease
the number of shares of any such series or class, to the extent permitted by the
MGCL.
 
     The Board of Directors of AIMCO is authorized to determine for each series
of preferred stock: (1) the designation of such shares and the number of shares
that constitute such series, (2) the dividend rate (or the method of calculation
thereof), if any, on the shares of such series and the priority as to payment of
dividends with respect to other classes or series of capital stock of AIMCO, (3)
the dividend periods (or the method of calculation thereof), (4) the voting
rights of the shares, (5) the liquidation preference and the priority as to
payment of such liquidation preference with respect to other classes or series
of capital stock of AIMCO and any other rights of the shares of such series upon
any liquidation or winding-up of AIMCO, (6) whether or not and on what terms the
shares of such series will be subject to redemption or repurchase at the option
of AIMCO, (7) whether and on what terms the shares of such series will be
convertible into or exchangeable for other debt or equity securities of AIMCO,
(8) whether the shares of such series of preferred stock will be listed on a
securities exchange, (9) any special Federal income tax considerations
applicable to such series, and (10) the other rights and privileges and any
qualifications, limitations or restrictions of such rights or privileges of such
series not inconsistent with AIMCO's Charter and the MGCL.
 
CLASS B PREFERRED STOCK
 
     On August 4, 1997, AIMCO issued 750,000 shares of its Class B Preferred
Stock to an institutional investor (the "Preferred Share Investor") in a private
transaction. The Class B Preferred Stock (1) ranks prior to the AIMCO Common
Stock with respect to
 
                                       217
<PAGE>   224
 
dividends, liquidation, dissolution and winding-up, and has an aggregate
liquidation value of $75 million and (2) ranks on parity with the Class C
Preferred Stock, the Class D Preferred Stock, the Class G Preferred Stock, the
Class H Preferred Stock and the Class J Preferred Stock. Holders of the Class B
Preferred Stock are entitled to receive, when, as and if declared by the Board
of Directors of AIMCO, quarterly cash dividends per share equal to the greater
of (a) $1.78125 (the "Base Rate") and (b) the cash dividends declared on the
number of shares of AIMCO Common Stock into which one share of Class B Preferred
Stock is convertible. Each share of Class B Preferred Stock may be converted, at
the option of the holder, into 3.28407 shares of AIMCO Common Stock, subject to
certain anti-dilution adjustments. AIMCO may redeem any or all of the Class B
Preferred Stock on or after August 4, 2002, at a redemption price of $100 per
share, plus unpaid dividends accrued on the shares redeemed.
 
     Holders of Class B Preferred Stock, voting as a class with the holders of
all AIMCO stock that ranks on a parity with the Class B Preferred Stock with
respect to the payment of dividends or upon liquidation, dissolution, winding-up
or otherwise ("Class B Parity Stock"), will be entitled to elect (1) two
directors of AIMCO if six quarterly dividends (regardless of whether
consecutive) on the Class B Preferred Stock or any Class B Parity Stock are in
arrears, and (2) one director of AIMCO if for two consecutive quarterly dividend
periods AIMCO fails to pay at least $0.4625 in dividends on the AIMCO Common
Stock. The affirmative vote of the holders of two-thirds of the outstanding
shares of Class B Preferred Stock will be required to amend AIMCO's Charter in
any manner that would adversely affect the rights of the holders of Class B
Preferred Stock and to approve the issuance of any stock that ranks senior to
the Class B Preferred Stock with respect to payment of dividends or upon
liquidation, dissolution, winding-up or otherwise. If the IRS were to make a
final determination that AIMCO does not qualify as a REIT in accordance with
Sections 856 through 860 of the Code, the Base Rate for the quarterly cash
dividends on the Class B Preferred Stock would increase to $3.03125 per share.
 
     Holders of Class B Preferred Stock shall be entitled to receive a
liquidation preference of $100 per share, plus an amount equal to all
accumulated, accrued and unpaid dividends to the date of the final distribution
to such holders, but such holders shall not be entitled to any further payment.
If proceeds available for distribution shall be insufficient to pay the
preference described above and any liquidating payments on any other shares of
any class or series of Class B Parity Stock, then such proceeds shall be
distributed among the holders of Class B Preferred Stock and any such other
Class B Parity Stock ratably in the same proportion as the respective amounts
that would be payable on such Class B Preferred Stock and any such other Class B
Parity Stock if all amounts payable thereon were paid in full.
 
     The agreement pursuant to which AIMCO issued the Class B Preferred Stock
(the "Preferred Share Purchase Agreement") provides that each preferred share
investor may require AIMCO to repurchase such investor's Class B Preferred Stock
in whole or in part at a price of 105% of the liquidation preference thereof,
plus accrued and unpaid dividends on the purchased shares, if (1) AIMCO shall
fail to continue to be taxed as a REIT pursuant to Sections 856 through 860 of
the Code, or (2) upon the occurrence of a change of control (as defined in the
Preferred Share Purchase Agreement). The Preferred Share Purchase Agreement also
provides that, so long as the preferred share investor owns Class B Preferred
Stock with an aggregate liquidation preference of at least $18.75 million,
 
                                       218
<PAGE>   225
 
neither AIMCO, the AIMCO Operating Partnership nor any subsidiary of AIMCO may
issue preferred securities or incur indebtedness for borrowed money if
immediately following such issuance and after giving effect thereto and the
application of the net proceeds therefrom, AIMCO's ratio of aggregate
consolidated earnings before interest, taxes, depreciation and amortization to
aggregate consolidated fixed charges for the four fiscal quarters immediately
preceding such issuance would be less than 1.5 to 1.
 
     Subject to certain exceptions specified in the provisions of AIMCO's
Charter establishing the terms of the Class B Preferred Stock, no holder may
own, or be deemed to own by virtue of various attribution and constructive
ownership provisions of the Code and Rule 13d-3 under the Exchange Act, shares
of Class B Preferred Stock with a value in excess of the amount by which (1)
8.7% (or 15% in the case of certain pension trusts described in the Code,
investment companies registered under the Investment Company Act of 1940 and Mr.
Considine) of the aggregate value of all shares of stock of AIMCO exceeds (2)
the aggregate value of all shares of stock of AIMCO, other than Class B
Preferred Stock, that are owned by such holder (the "Class B Preferred Ownership
Limit"). The Board of Directors of AIMCO may waive such ownership limit if
evidence satisfactory to the Board of Directors of AIMCO and AIMCO's tax counsel
is presented that such ownership will not then or in the future jeopardize
AIMCO's status as a REIT. As a condition of such waiver, the Board of Directors
of AIMCO may require opinions of counsel satisfactory to it and/or an
undertaking from the applicant with respect to preserving the REIT status of
AIMCO. If shares of Class B Preferred Stock in excess of the Class B Preferred
Ownership Limit, or shares of Class B Preferred Stock which would result in
AIMCO being "closely held," within the meaning of Section 856(h) of the Code, or
which would otherwise result in AIMCO failing to qualify as a REIT, are issued
or transferred to any person, such issuance or transfer will be null and void to
the intended transferee, and the intended transferee would acquire no rights to
the stock. Shares of Class B Preferred Stock transferred in excess of the Class
B Preferred Ownership Limit or other applicable limitations will automatically
be transferred to a trust for the exclusive benefit of one or more qualifying
charitable organizations to be designated by AIMCO. Shares transferred to such
trust will remain outstanding, and the trustee of the trust will have all voting
and dividend rights pertaining to such shares. The trustee of such trust may
transfer such shares to a person whose ownership of such shares does not violate
the Class B Preferred Ownership Limit or other applicable limitation. Upon a
sale of such shares by the trustee, the interest of the charitable beneficiary
will terminate, and the sales proceeds would be paid, first, to the original
intended transferee, to the extent of the lesser of (1) such transferee's
original purchase price (or the original market value of such shares if
purportedly acquired by gift or devise) and (2) the price received by the
trustee, and, second, any remainder to the charitable beneficiary. In addition,
shares of stock held in such trust are purchasable by AIMCO for a 90-day period
at a price equal to the lesser of the price paid for the stock by the original
intended transferee (or the original market value of such shares if purportedly
acquired by gift or devise) and the market price for the stock on the date that
AIMCO determines to purchase the stock. The 90-day period commences on the date
of the violative transfer or the date that the Board of Directors of AIMCO
determines in good faith that a violative transfer has occurred, whichever is
later. All certificates representing shares of Class B Preferred Stock bear a
legend referring to the restrictions described above.
 
                                       219
<PAGE>   226
 
     The affirmative vote of the holders of two thirds of the outstanding shares
of Class B Preferred Stock will be required to amend AIMCO's Charter in any
manner that would adversely affect the rights of the holders of Class B
Preferred Stock, and to approve the issuance of any stock that ranks senior to
the Class B Preferred Stock with respect to payment of dividends or upon
liquidation, dissolution, winding-up or otherwise.
 
CLASS C PREFERRED STOCK
 
     On December 23, 1997, AIMCO issued 2,400,000 shares of its Class C
Preferred Stock in an underwritten public offering for net proceeds of
approximately $57.9 million. The Class C Preferred Stock (a) ranks prior to the
AIMCO Common Stock and any other class or series of stock of AIMCO if the
holders of the Class C Preferred Stock are entitled to the receipt of dividends
and of amounts distributable upon liquidation, dissolution, and winding-up in
preference or priority to the holders of shares of such class or series ("Class
C Junior Stock"), (b) ranks on parity with the Class B Preferred Stock, the
Class D Preferred Stock, the Class G Preferred Stock, the Class H Preferred
Stock and Class J Preferred Stock, and with any other class or series of stock
of AIMCO if the holders of such class of stock or series and the Class C
Preferred Stock shall be entitled to the receipt of dividends and of amounts
distributable upon liquidation, dissolution or winding-up in proportion to their
respective amounts of accrued and unpaid dividends per share or liquidation
preferences, without preference or priority one over the other ("Class C Parity
Stock") and (c) ranks junior to any class or series of stock of AIMCO if the
holders of such class or series shall be entitled to the receipt of dividends or
amounts distributable upon liquidation, dissolution or winding-up in preference
or priority to the holders of the Class C Preferred Stock ("Class C Senior
Stock").
 
     Holders of Class C Preferred Stock are entitled to receive cash dividends
at the rate of 9% per annum of the $25 liquidation preference (equivalent to
$2.25 per annum per share). Such dividends are cumulative from the date of
original issue, and are payable quarterly on or before January 15, April 15,
July 15 and October 15 of each year. Upon any liquidation, dissolution or
winding-up of AIMCO, before payment or distribution by AIMCO shall be made to or
set apart for the holders of any shares of Class C Junior Stock, the holders of
Class C Preferred Stock shall be entitled to receive a liquidation preference of
$25 per share (the "Class C Liquidation Preference"), plus an amount equal to
all accumulated, accrued and unpaid dividends to the date of final distribution
to such holders; but such holders shall not be entitled to any further payment.
If proceeds available for distribution shall be insufficient to pay the
preference described above and any liquidating payments on any other shares of
any class or series of Class C Parity Stock, then such proceeds shall be
distributed among the holders of Class C Preferred Stock and any such other
Class C Parity Stock ratably in the same proportion as the respective amounts
that would be payable on such Class C Preferred Stock and any such other Class C
Parity Stock if all amounts payable thereon were paid in full.
 
     On and after December 23, 2002, AIMCO may redeem shares of Class C
Preferred Stock, in whole or in part, at a cash redemption price equal to 100%
of the Class C Liquidation Preference plus all accrued and unpaid dividends to
the date fixed for redemption. The Class C Preferred Stock has no stated
maturity and will not be subject to any sinking find or mandatory redemption
provisions.
 
                                       220
<PAGE>   227
 
     Holders of shares of Class C Preferred Stock have no voting rights, except
that if distributions on Class C Preferred Stock or any series or class of Class
C Parity Stock shall be in arrears for six or more quarterly periods, the number
of directors constituting the Board of Directors of AIMCO shall be increased by
two and the holders of Class C Preferred Stock (voting together as a single
class with all other shares of Class C Parity Stock which are entitled to
similar voting rights) will be entitled to vote for the election of the two
additional directors of AIMCO at any annual meeting of stockholders or at a
special meeting of the holders of the Class C Preferred Stock called for such
purpose. The affirmative vote of the holders of two thirds of the outstanding
shares of Class C Preferred Stock will be required to amend AIMCO's Charter in
any manner that would adversely affect the rights of the holders of Class C
Preferred Stock, and to approve the issuance of any stock that ranks senior to
the Class C Preferred Stock with respect to payment of dividends or upon
liquidation, dissolution, winding-up or otherwise.
 
     There are ownership restrictions applicable to the Class C Preferred Stock
that are similar to those for the Class B Preferred Stock.
 
CLASS D PREFERRED STOCK
 
     On February 19, 1998, AIMCO issued 4,200,000 shares of its Class D
Preferred Stock, in an underwritten public offering, for net proceeds of
approximately $101.5 million. The Class D Preferred Stock (1) ranks prior to the
Common Stock and any other class or series of stock of AIMCO if the holders of
the Class D Preferred Stock are to be entitled to the receipt of dividends of or
amounts distributable upon liquidation, dissolution, and winding-up in
preference or priority to the holders of shares of such class or series ("Class
D Junior Stock"), (2) ranks on parity with the Class B Preferred Stock, the
Class C Preferred Stock, the Class G Preferred Stock, and the Class H Preferred
Stock and the Class J Preferred Stock, and with any other class or series of
stock of AIMCO if the holders of such class of stock or series and the Class D
Preferred Stock shall be entitled to the receipt of dividends and of amounts
distributable upon liquidation, dissolution or winding-up in proportion to their
respective amounts of accrued and unpaid dividends per share or liquidation
preferences, without preference or priority one over the other ("Class D Parity
Stock") and (3) ranks junior to any class or series of stock of AIMCO if the
holders of such class or series shall be entitled to the receipt of dividends or
amounts distributable upon liquidation, dissolution or winding-up in preference
or priority to the holders of the Class D Preferred Stock ("Class D Senior
Stock").
 
     Holders of Class D Preferred Stock are entitled to receive cash dividends
at the rate of 8 3/4% per annum of the $25 liquidation preference (equivalent to
$2.1875 per annum per share). Such dividends are cumulative from the date of
original issue, and are payable quarterly on or before January 15, April 15,
July 15 and October 15 of each year. Upon any liquidation, dissolution or
winding-up of AIMCO, before payment or distribution by AIMCO shall be made to or
set apart for the holders of any shares of Class D Junior Stock, the holders of
Class D Preferred Stock shall be entitled to receive a liquidation preference of
$25 per share (the "Class D Liquidation Preference"), plus an amount equal to
all accumulated, accrued and unpaid dividends to the date of final distribution
to such holders; but such holders shall not be entitled to any further payment.
If proceeds available for distribution shall be insufficient to pay the
preference described above and any liquidating payments on any other shares of
any class or series of Class D Parity Stock,
 
                                       221
<PAGE>   228
 
then such proceeds shall be distributed among the holders of Class D Preferred
Stock and any such other Class D Parity Stock ratably in the same proportion as
the respective amounts that would be payable on such Class D Preferred Stock and
any such other Class D Parity Stock if all amounts payable thereon were paid in
full.
 
     On and after February 19, 2003, AIMCO may redeem shares of Class D
Preferred Stock, in whole or in part, at a cash redemption price equal to 100%
of the Class D Liquidation Preference plus all accrued and unpaid dividends to
the date fixed for redemption. The Class D Preferred Stock has no stated
maturity and will not be subject to any sinking fund or mandatory redemption
provisions.
 
     Holders of shares of Class D Preferred Stock have no voting rights, except
that if distributions on Class D Preferred Stock or any series or class of Class
D Parity Stock shall be in arrears for six or more quarterly periods, the number
of directors constituting the Board of Directors of AIMCO shall be increased by
two and the holders of Class D Preferred Stock (voting together as a single
class with all other shares of Class D Parity Stock which are entitled to
similar voting rights) will be entitled to vote for the election of the two
additional directors of AIMCO at any annual meeting of stockholders or at a
special meeting of the holders of the Class D Preferred Stock called for the
purpose. The affirmative vote of the holders of two-thirds of the outstanding
shares of Class D Preferred Stock will be required to amend AIMCO's Charter in
any manner that would adversely affect the rights of the holders of Class D
Preferred Stock, and to approve the issuance of any stock that ranks senior to
the Class D Preferred Stock with respect to payment of dividends or upon
liquidation, dissolution, winding-up or otherwise.
 
     There are ownership restrictions applicable to the Class D Preferred Stock
that are similar to those for the Class B Preferred Stock.
 
CLASS G PREFERRED STOCK
 
     On July 15, 1998, AIMCO issued 4,050,000 shares of its Class G Preferred
Stock, in an underwritten public offering for net proceeds of approximately $98
million. The Class G Preferred Stock (1) ranks prior to the AIMCO Common Stock
and any other class or series of stock of AIMCO, if the holders of the Class G
Preferred Stock are to be entitled to the receipt of dividends or of amounts
distributable upon liquidation, dissolution, and winding-up in preference or
priority to the holders of shares of such class or series ("Class G Junior
Stock"), (2) ranks on parity with the Class B Preferred Stock, the Class C
Preferred Stock, the Class D Preferred Stock, the Class H Preferred Stock and
Class J Preferred Stock and with any other class or series of stock of AIMCO, if
the holders of such class of stock or series and the Class G Preferred Stock
shall be entitled to the receipt of dividends and of amounts distributable upon
liquidation, dissolution or winding-up in proportion to their respective amounts
of accrued and unpaid dividends per share or liquidation preferences, without
preference or priority one over the other ("Class G Parity Stock") and (3) ranks
junior to any class or series of stock of AIMCO if the holders of such class or
series shall be entitled to the receipt of dividends or amounts distributable
upon liquidation, dissolution or winding-up in preference or priority to the
holders of the Class G Preferred Stock ("Class G Senior Stock").
 
     Holders of Class G Preferred Stock are entitled to receive cash dividends
at the rate of 9 3/8% per annum of the $25 liquidation preference (equivalent to
$2.34375 per annum
 
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<PAGE>   229
 
per share). Such dividends are cumulative from the date of original issue, and
are payable quarterly on or before January 15, April 15, July 15 and October 15
of each year. Upon any liquidation, dissolution or winding-up of AIMCO, before
payment or distribution by AIMCO shall be made to or set apart for the holders
of any shares of Class G Junior Stock, the holders of Class G Preferred Stock
shall be entitled to receive a liquidation preference of $25 per share (the
"Class G Liquidation Preference"), plus an amount equal to all accumulated,
accrued and unpaid dividends to the date of final distribution to such holders;
but such holders shall not be entitled to any further payment. If proceeds
available for distribution shall be insufficient to pay the preference described
above and any liquidating payments on any other shares of any class or series of
Class G Parity Stock, then such proceeds shall be distributed among the holders
of Class G Preferred Stock and any such other Class G Parity Stock ratably in
the same proportion as the respective amount that would be payable on such Class
G Preferred Stock and any such other Class G Parity Stock if all amounts payable
thereon were paid in full.
 
     On and after July 15, 2008, AIMCO may redeem shares of Class G Preferred
Stock, in whole or in part, at a cash redemption price equal to 100% of the
Class G Liquidation Preference plus all accrued and unpaid dividends to the date
fixed for redemption. The Class G Preferred Stock has no stated maturity and
will not be subject to any sinking fund or mandatory redemption provisions.
 
     Holders of shares of Class G Preferred Stock have no voting rights, except
that if distributions on Class G Preferred Stock or any series or class of Class
G Parity Stock shall be in arrears for six or more quarterly periods, the number
of directors constituting the Board of Directors of AIMCO shall be increased by
two and the holders of Class G Preferred Stock (voting together as a single
class with all other shares of Class G Parity Stock, which are entitled to
similar voting rights) will be entitled to vote for the election of the two
additional directors of AIMCO at any annual meeting of stockholders or at a
special meeting of the holders of the Class G Preferred Stock called for the
purpose. The affirmative vote of the holders of two-thirds of the outstanding
shares of Class G Preferred Stock will be required to amend AIMCO's Charter in
any manner that would adversely affect the rights of the holders of Class G
Preferred Stock, and to approve the issuance of any stock that ranks senior to
the Class G Preferred Stock with respect to payment of dividends or upon
liquidation, dissolution, winding-up or otherwise.
 
     There are ownership restrictions applicable to the Class G Preferred Stock
that are similar to those for the Class B Preferred Stock.
 
                                       223
<PAGE>   230
 
CLASS H PREFERRED STOCK
 
     On August 11, 1998, AIMCO issued 2,000,000 shares of Class H Preferred
Stock, in an underwritten public offering for net proceeds of approximately
$48.1 million. The Class H Preferred Stock (1) ranks prior to the AIMCO Common
Stock and any other class or series of stock of AIMCO if the holders of the
Class H Preferred Stock are to be entitled to the receipt of dividends or of
amounts distributable upon liquidation, dissolution, and winding-up in
preference or priority to the holders of shares of such class or series ("Class
H Junior Stock"), (2) ranks on parity with the Class B Preferred Stock, the
Class C Preferred Stock, the Class D Preferred Stock, the Class G Preferred
Stock, the Class J Preferred Stock and with any other class or series of stock
of AIMCO, if the holders of such class of stock or series and the Class G
Preferred Stock shall be entitled to the receipt of dividends and of amounts
distributable upon liquidation, dissolution or winding-up in proportion to their
respective amounts of accrued and unpaid dividends per share or liquidation
preferences, without preference or priority one over the other ("Class H Parity
Stock") and (3) ranks junior to any class or series of stock of AIMCO if the
holders of such class or series shall be entitled to the receipt of dividends or
amounts distributable upon liquidation, dissolution or winding-up in preference
or priority to the holders of the Class H Preferred Stock ("Class H Senior
Stock").
 
     Holders of Class H Preferred Stock are entitled to receive cash dividends
at the rate of 9 1/2% per annum of the $25 liquidation preference (equivalent to
$2.375 per annum per share). Such dividends are cumulative from the date of
original issue, and are payable quarterly on or before January 15, April 15,
July 15 and October 15 of each year. Upon any liquidation, dissolution or
winding-up of AIMCO, before payment or distribution by AIMCO shall be made to or
set apart for the holders of any shares of Class H Junior Stock, the holders of
Class H Preferred Stock shall be entitled to receive a liquidation preference of
$25 per share (the "Class H Liquidation Preference"), plus an amount equal to
all accumulated, accrued and unpaid dividends to the date of final distribution
to such holders; but such holders shall not be entitled to any further payment.
If proceeds available for distribution shall be insufficient to pay the
preference described above and any liquidating payments on any other shares of
any class or series of Class H Parity Stock, then such proceeds shall be
distributed among the holders of Class H Preferred Stock and any such other
Class H Parity Stock ratably in the same proportion as the respective amount
that would be payable on such Class H Preferred Stock and any such other Class H
Parity Stock if all amounts payable thereon were paid in full.
 
     On and after August 14, 2003, AIMCO may redeem shares of Class H Preferred
Stock, in whole or in part, at a cash redemption price equal to 100% of the
Class H Liquidation Preference plus all accrued and unpaid dividends to the date
fixed for redemption. The Class H Preferred Stock has no stated maturity and
will not be subject to any sinking fund or mandatory redemption provisions.
 
     Holders of shares of Class H Preferred Stock have no voting rights, except
that if distributions on Class H Preferred Stock or any series or class of Class
H Parity Stock shall be in arrears for six or more quarterly periods, the number
of directors constituting the Board of Directors of AIMCO shall be increased by
two and the holders of Class H Preferred Stock (voting together as a single
class with all other shares of Class H Parity Stock, which are entitled to
similar voting rights) will be entitled to vote for the election of the two
additional directors of AIMCO at any annual meeting of stockholders or at a
 
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<PAGE>   231
 
special meeting of the holders of the Class H Preferred Stock called for the
purpose. The affirmative vote of the holders of two-thirds of the outstanding
shares of Class H Preferred Stock will be required to amend AIMCO's Charter in
any manner that would adversely affect the rights of the holders of Class H
Preferred Stock, and to approve the issuance of any capital stock that ranks
senior to the Class H Preferred Stock with respect to payment of dividends or
upon liquidation, dissolution, winding-up or otherwise.
 
     There are ownership restrictions applicable to the Class H Preferred Stock
that are similar to those for the Class B Preferred Stock.
 
CLASS J PREFERRED STOCK
 
     On November 6, 1998, AIMCO issued 1,250,000 shares of its Class J Preferred
Stock in a private transaction, including 250,000 shares of Class J Preferred
Stock to the AIMCO Operating Partnership. The Class J Preferred Stock (a) ranks
prior to the AIMCO Common Stock with respect to dividends, liquidation,
dissolution and wind-ups, and has a liquidation value of $100 per share and (b)
ranks on parity with the Class B Preferred Stock, the Class C Preferred Stock,
the Class D Preferred Stock, the Class G Preferred Stock and the Class H
Preferred Stock ("Class J Preferred Parity"). Holders of the Class J Preferred
Stock are entitled to receive, when, as and if declared by the Board of
Directors of AIMCO, quarterly cash dividends per share equal to (i) 7% per annum
of the liquidation preference thereof for the period beginning on and including
November 6, 1998 and lasting until November 15, 1998; (ii) 8% per annum of the
per share liquidation preference for the period beginning on and including
November 15, 1998 and lasting until November 15, 1999; (iii) 9% per annum of the
per share liquidation preference for the period beginning on and including
November 15, 1999 and lasting until November 15, 2000; and (iv) 9.5% per annum
of the per share liquidation preference thereafter. Such dividends will be
cumulative from November 6, 1998, whether or not in any quarterly dividend
period(s) such dividends will be declared or there will be funds legally
available for the payment of such dividends.
 
     Each share of Class J Preferred Stock may be converted into 2.5 shares of
AIMCO Common Stock (subject to certain anti-dilution adjustments) on or after
November 6, 1998, (a) at the option of the holder, and (b) at the option of
AIMCO, if (i) after November 6, 2002, the market price of the AIMCO Common Stock
in the five most recent trading days is equal to or greater than $40 or (ii) at
any time on or prior to November 6, 2002, the internal rate of return associated
with an outstanding share of Class J Preferred Stock exceeds 12.5%.
 
     Holders of Class J Preferred Stock, voting as a class with the holders of
all Class J Parity Stock, will be entitled to elect two directors of AIMCO if
six quarterly dividends (regardless of whether consecutive) on the Class J
Preferred Stock or any Class J Parity Stock are in arrears, whether or not
earned or declared. The affirmative vote of the holders of two-thirds of the
outstanding shares of Class J Preferred Stock will be required to amend AIMCO's
Charter in any manner that would adversely affect the rights of the holders of
Class J Preferred Stock, and to approve the issuance of any capital stock that
ranks senior to the Class J Preferred Stock with respect to payment of dividends
or upon liquidation, dissolution, winding up or otherwise.
 
     Subject to certain exceptions specified in the provisions of AIMCO's
Charter establishing the terms of Class J Preferred Stock, no holder may own, or
be deemed to own by virtue of various attribution and constructive ownership
provisions of the Code and
 
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<PAGE>   232
 
Rule 13d-3 under the Exchange Act, shares of Class J Preferred Stock with a
value in excess of the amount by which (i) 8.7% (or 15% in the case of certain
pension trusts described in the Code, investment companies registered under the
Investment Company Act of 1940 and Mr. Considine) of the aggregate value of all
shares of capital stock of AIMCO exceeds (ii) the aggregate value of all shares
of capital stock of AIMCO, other than Class J Preferred Stock, that are owned by
such holder (the "Class J Preferred Ownership Limit"). The Board of Directors of
AIMCO may waive such ownership limit if evidence satisfactory to the Board of
Directors of AIMCO and AIMCO's tax counsel is presented that such ownership will
not then or in the future jeopardize AIMCO's counsel satisfactory to it and/or
an undertaking from the applicant with respect to preserving the REIT status of
AIMCO.
 
     If shares of Class J Preferred Stock in excess of the Class J Preferred
Ownership Limit, or shares of Class J Preferred Stock that would result in AIMCO
being "closely held," within the meaning of Section 856(h) of the Code, or that
would otherwise result in AIMCO failing to qualify as a REIT, are issued or
transferred to any person, (a) such issuance or transfer will be null and void
to the intended transferee, (b) the intended transferee would acquire no rights
to the shares of Class J Preferred Stock transferred in excess of the Class J
Preferred Ownership Limit or other applicable limitations and (c) such shares
will automatically be transferred to a trust for the exclusive benefit of one or
more qualifying charitable organizations to be designated by AIMCO. Shares
transferred to such trust will remain outstanding, and the trustee of the trust
will have all voting and dividend rights pertaining to such shares. The trustee
of such trust may transfer such shares to a person whose ownership of such
shares to a person whose ownership of such shares does not violate the Class J
Preferred Ownership Limit or other applicable limitations. Upon a sale of such
shares by the trustee, the interest of the charitable beneficiary will
terminate, and the sales proceeds would be paid first to the original intended
transferee, to the extent of the lesser of (i) such transferee's original
purchase price (or the original market value of such shares if purportedly
acquired by gift or devise) and (ii) the price received by the trustee. Any
remaining proceeds from such sale will be paid to the charitable beneficiary. In
addition, shares of the stock held in such trust are purchasable by AIMCO for a
90-day period commences on the date that AIMCO, or its designee, decides to
purchase the stock. The 90-day period commences on the date of the violative
transfer or the date that the Board of Directors of AIMCO determines in good
faith that a violative transfer has occurred, whichever is later. All
certificates representing shares of Class J Preferred Stock bear a legend
referring to the restrictions described above.
 
                                       226
<PAGE>   233
 
                      FEDERAL INCOME TAXATION OF AIMCO AND
                               AIMCO STOCKHOLDERS
 
     The following is a summary of the material Federal income tax consequences
resulting from the acquisition of, holding, exchanging, and otherwise disposing
of shares of AIMCO Common Stock. This summary is based upon the Code, the
Treasury Regulations, rulings issued by the Internal Revenue Service ("IRS"),
and judicial decisions, all in effect as of the date of this Information
Statement/Prospectus and all of which are subject to change, possibly
retroactively. This summary is also based on the assumptions that the operation
of AIMCO, the AIMCO Operating Partnership and the limited liability companies
and limited partnerships in which they own controlling interests (collectively,
the "Subsidiary Partnerships") will be in accordance with their respective
organizational documents and agreements. This summary is for general information
only and does not discuss all aspects of Federal income taxation which may be
important to a particular investor in light of its investment or tax
circumstances, or to certain types of investors subject to special tax rules
(including financial institutions, broker-dealers, insurance companies, and,
except to the extent discussed below, tax-exempt organizations and foreign
investors, as determined for Federal income tax purposes). This summary assumes
that investors will hold their shares of AIMCO Common Stock as "capital assets"
(generally, property held for investment). No advance ruling has been or will be
sought from the IRS regarding any matter discussed in this Information
Statement/Prospectus.
 
     THE FEDERAL INCOME TAX TREATMENT OF HOLDERS OF SHARES OF AIMCO COMMON STOCK
DEPENDS IN SOME INSTANCES ON DETERMINATIONS OF FACT AND INTERPRETATIONS OF
COMPLEX PROVISIONS OF FEDERAL INCOME TAX LAW FOR WHICH NO CLEAR PRECEDENT OR
AUTHORITY MAY BE AVAILABLE. ACCORDINGLY, EACH PROSPECTIVE INVESTOR SHOULD
CONSULT ITS TAX ADVISOR REGARDING THE FEDERAL, STATE, LOCAL AND FOREIGN TAX
CONSEQUENCES OF ACQUIRING, HOLDING, EXCHANGING, OR OTHERWISE DISPOSING OF THE
SHARES OF AIMCO COMMON STOCK AND OF AIMCO'S ELECTION TO BE SUBJECT TO TAX, FOR
FEDERAL INCOME TAX PURPOSES, AS A REIT.
 
GENERAL
 
     The REIT provisions of the Code are highly technical and complex. The
following summary sets forth certain aspects of the provisions of the Code that
govern the Federal income tax treatment of a REIT and its stockholders. This
summary is qualified in its entirety by the applicable Code provisions, Treasury
Regulations, and administrative and judicial interpretations thereof, all of
which are subject to change, possibly retroactively.
 
     AIMCO has elected to be taxed as a REIT under the Code commencing with its
taxable year ending December 31, 1994, and AIMCO intends to continue such
election. Although AIMCO believes, and it has received an opinion of Skadden,
Arps, Slate, Meagher and Flom LLP ("Counsel") to the effect that, commencing
with the AIMCO's initial taxable year ended December 31, 1994, AIMCO was
organized in conformity with the requirements for qualification as a REIT under
the Code, and its actual method of operation has enabled, and its proposed
method of operation will enable, AIMCO to meet the requirements for
qualification and taxation as a REIT under the Code, no assurance can be given
that AIMCO has been or will remain so qualified. It must be emphasized that
Counsel's opinion is based and conditioned upon certain assumptions,
representations and covenants made by AIMCO as to factual matters (including
representations of AIMCO concerning its business and properties as set forth in
this Information Statement/
 
                                       227
<PAGE>   234
 
Prospectus). In addition, Counsel's opinion assumes the qualification of IPT as
a REIT and relies upon the opinion of Akin, Gump, Straus, Hauer & Feld L.L.P.,
which opinion is based on certain representations and covenants made by IPT as
to factual matters, including representations and covenants regarding the nature
of IPT's properties and the future conduct of its business in accordance with
the requirements to qualify as a REIT which are described herein. In this
regard. IPT's failure to qualify as a REIT would adversely affect AIMCO's
qualification as a REIT. Counsel's opinion is expressed as of its date and
Counsel has no obligation to advise AIMCO of any subsequent change in the
matters stated, represented or assumed or any subsequent change in the
applicable law. Moreover, AIMCO's qualification and taxation as a REIT depends
upon its ability to meet, through actual annual operating results, distribution
levels and diversity of stock ownership, the various qualification tests imposed
under the Code as discussed below, the results of which will not be reviewed by
Counsel. Accordingly, no assurance can be given that the actual results of
AIMCO's operation for any one taxable year will satisfy the requirements for
qualification and taxation as a REIT under the Code. See "-- Failure to
Qualify." An opinion of counsel is not binding on the IRS, and no assurance can
be given that the IRS will not challenge AIMCO's qualification as a REIT.
 
     Provided AIMCO qualifies for taxation as a REIT, it will generally not be
subject to Federal corporate income tax on its net income that is currently
distributed to its stockholders. This treatment substantially eliminates the
"double taxation" (at the corporate and stockholder levels) that generally
results from an investment in a corporation. However, notwithstanding AIMCO's
qualification as a REIT, AIMCO will be subject to Federal income tax as follows:
First, AIMCO will be taxed at regular corporate rates on any undistributed REIT
taxable income, including undistributed net capital gains. Second, under certain
circumstances, AIMCO may be subject to the "alternative minimum tax" on its
items of tax preference. Third, if AIMCO has net income from "prohibited
transactions" (which are, in general, certain sales or other dispositions of
property held primarily for sale to customers in the ordinary course of business
other than foreclosure property), such income will be subject to a 100% tax.
Fourth, if AIMCO should fail to satisfy the 75% gross income test or the 95%
gross income test (as discussed below), but has nonetheless maintained its
qualification as a REIT because certain other requirements have been met, it
will be subject to a 100% tax on an amount equal to (1) the gross income
attributable to the greater of the amount by which AIMCO fails the 75% or 95%
test multiplied by (2) a fraction intended to reflect AIMCO's profitability.
Fifth, if AIMCO should fail to distribute during each calendar year at least the
sum of (1) 85% of its REIT ordinary income for such year, (2) 95% of its REIT
capital gain net income for such year (other than certain long-term capital
gains that AIMCO elects to retain and pay the tax thereon), and (3) any
undistributed taxable income from prior periods, AIMCO would be subjected to a
4% excise tax on the excess of such required distribution over the amounts
actually distributed. Sixth, if AIMCO acquires assets from a corporation that is
not a REIT in a transaction in which the adjusted tax basis of the assets in the
hands of AIMCO is determined by reference to the adjusted tax basis of such
assets in the hands of such corporation (such as the assets acquired from IFG in
the IFG Merger), under Treasury Regulations not yet promulgated, such
corporation would be required to recognize any net Built-In Gain (as defined
below) that would have been realized if the corporation had liquidated on the
day before the date of the transfer. Pursuant to IRS Notice 88-19, AIMCO may
elect, in lieu of the treatment described above, to be subject to tax at the
highest regular corporate tax rate to the extent of the
 
                                       228
<PAGE>   235
 
excess, if any, of the fair market value over the adjusted basis of such assets
("Built-in Gain") during the ten-year period following the acquisition. AIMCO
intends to make such an election and, therefore, will be taxed at the highest
regular corporate rate on such Built-in Gain if, and to the extent, such assets
are sold within the specified ten-year period. It should be noted that AIMCO has
acquired a significant amount of assets with Built-in Gain and a taxable
disposition by AIMCO of any of these assets within ten years of their
acquisition would subject AIMCO to tax under the foregoing rule. Seventh, AIMCO
could be subject to foreign taxes on its investments and activities in foreign
jurisdictions. In addition, AIMCO could also be subject to tax in certain
situations and on certain transactions not presently contemplated.
 
REQUIREMENTS FOR QUALIFICATION
 
     The Code defines a REIT as a corporation, trust or association (1) that is
managed by one or more trustees or directors; (2) the beneficial ownership of
which is evidenced by transferable shares, or by transferable certificates of
beneficial interest; (3) which would be taxable as a domestic corporation, but
for the special Code provisions applicable to REITs; (4) that is neither a
financial institution nor an insurance company subject to certain provisions of
the Code; (5) the beneficial ownership of which is held by 100 or more persons;
(6) in which, during the last half of each taxable year, not more than 50% in
value of the outstanding stock is owned, directly or indirectly, by five or
fewer individuals (as defined in the Code to include certain entities); and (7)
which meets certain other tests described below (including with respect to the
nature of its income and assets). The Code provides that conditions (1) through
(4) must be met during the entire taxable year, and that condition (5) must be
met during at least 335 days of a taxable year of 12 months, or during a
proportionate part of a taxable year of less than 12 months. The AIMCO Charter
provides certain restrictions regarding transfers of its shares, which
provisions are intended to assist AIMCO in satisfying the share ownership
requirements described in conditions (5) and (6) above.
 
     To monitor AIMCO's compliance with the share ownership requirements, AIMCO
is required to maintain records regarding the actual ownership of its shares. To
do so, AIMCO must demand written statements each year from the record holders of
certain percentages of its stock in which the record holders are to disclose the
actual owners of the shares (i.e., the persons required to include in gross
income AIMCO dividends). A list of persons failing or refusing to comply with
this demand must be maintained as part of AIMCO's records. Failure by AIMCO to
comply with the foregoing record keeping requirements could subject it to
monetary penalties, but would not, effective with respect to AIMCO's 1998 tax
year and thereafter, affect its qualification as a REIT. A stockholder who fails
or refuses to comply with the demand must submit a statement with its tax return
disclosing the actual ownership of the shares and certain other information.
 
     In addition, a corporation may not elect to become a REIT unless its
taxable year is the calendar year. AIMCO satisfies this requirement.
 
  Ownership of Partnership Interests
 
     In the case of a REIT that is a partner in a partnership, the Treasury
Regulations provide that the REIT is deemed to own its proportionate share of
the partnership's assets
 
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<PAGE>   236
 
and to earn its proportionate share of the partnership's income. In addition,
the assets and gross income of the partnership retain the same character in the
hands of the REIT for purposes of the gross income and asset tests applicable to
REITs as described below. Thus, AIMCO's proportionate share of the assets,
liabilities and items of income of the Subsidiary Partnerships) will be treated
as assets, liabilities and items of income of AIMCO for purposes of applying the
REIT requirements described herein. A summary of certain rules governing the
Federal income taxation of partnerships and their partners is provided below in
"-- Tax Aspects of AIMCO's Investments in Partnerships."
 
  Income Tests
 
     In order to maintain qualification as a REIT, AIMCO annually must satisfy
two gross income requirements. First, at least 75% of AIMCO's gross income
(excluding gross income from "prohibited transactions," for each taxable year
must be derived directly or indirectly from investments relating to real
property or mortgages on real property (including "rents from real property"
and, in certain circumstances, interest) or from certain types of temporary
investments. Second, at least 95% of AIMCO's gross income (excluding gross
income from prohibited transactions) for each taxable year must be derived from
such real property investments, and from dividends, interest and gain from the
sale or disposition of stock or securities (or from any combination of the
foregoing).
 
     Rents received by AIMCO through the Subsidiary Partnerships will qualify as
"rents from real property" in satisfying the gross income requirements described
above, only if several conditions are met, including the following. 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." Moreover, for rents received to qualify as "rents
from real property," the REIT generally must not operate or manage the property
or furnish or render services to the tenants of such property, other than
through an "independent contractor" from which the REIT derives no revenue.
However, AIMCO (or its affiliates) is permitted to directly perform services
that are "usually or customarily rendered" in connection with the rental of
space for occupancy only and are not otherwise considered rendered to the
occupant of the property. In addition, AIMCO (or its affiliates) may provide
non-customary services to tenants of its properties without disqualifying all of
the rent from the property if the payment for such services does not exceed 1%
of the total gross income from the property. For purposes of this test, the
income received from such non-customary services is deemed to be at least 150%
of the direct cost of providing the services.
 
     Certain subsidiaries of AIMCO that manage the Managed Properties
(collectively, the "Management Subsidiaries") receive management fees and other
income. A portion of such fees and other income accrue to AIMCO through
distributions from the Management Subsidiaries that will be classified as
dividend income to the extent of the earnings and profits of the Management
Subsidiaries. Such distributions will generally qualify under the 95% gross
income test but not under the 75% gross income test.
 
     If AIMCO fails to satisfy one or both of the 75% or 95% gross income tests
for any taxable year, it may nevertheless qualify as a REIT for such year if it
is entitled to relief under certain provisions of the Code. These relief
provisions will be generally available if (i) AIMCO's failure to satisfy such
income tests was due to reasonable cause and not due
 
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to willful neglect, (ii) AIMCO attaches a schedule of the sources of its income
to its return, and (iii) any incorrect information on the schedule was not due
to fraud with intent to evade tax. It is not possible, however, to state whether
in all circumstances AIMCO would be entitled to the benefit of these relief
provisions. If these relief provisions are not available, AIMCO will not
maintain its qualification as a REIT. As discussed above in "-- General," even
where these relief provisions apply, a tax is imposed with respect to the excess
net income.
 
  Asset Tests
 
     AIMCO, at the close of each quarter of its taxable year, must satisfy three
tests relating to the nature of its assets. First, at least 75% of the value of
AIMCO's total assets must be represented by real estate assets (including its
allocable share of real estate assets held by the Subsidiary Partnerships),
certain stock or debt instruments purchased by AIMCO with the proceeds of a
stock offering or long-term (at least 5 years) public debt offering of AIMCO,
cash, cash items and U.S. government securities. Second, not more than 25% of
AIMCO's total assets may be represented by securities other than those in the
75% asset class. Third, of the investments included in the 25% asset class, the
value of any one issuer's securities owned by AIMCO may not exceed 5% of the
value of AIMCO's total assets, and AIMCO may not own more than 10% of any one
issuer's outstanding voting securities.
 
     AIMCO indirectly owns interests in the Management Subsidiaries. As set
forth above, the ownership of more than 10% of the voting securities of any one
issuer by a REIT or the investment of more than 5% of the REIT's total assets in
any one issuer's securities is prohibited by the asset tests. AIMCO believes
that its indirect ownership interests in the Management Subsidiaries qualify
under the asset tests set forth above. However, no independent appraisals have
been obtained to support AIMCO's conclusions as to the value of the AIMCO
Operating Partnership's total assets and the value of the AIMCO Operating
Partnership's interest in the Management Subsidiaries, and these values are
subject to change in the future. Accordingly, there can be no assurance that the
IRS will not contend that the AIMCO Operating Partnership's ownership interests
in the Management Subsidiaries disqualifies AIMCO from treatment as a REIT.
 
     AIMCO's indirect interests in the AIMCO Operating Partnership and other
Subsidiary Partnerships are held through wholly owned corporate subsidiaries of
AIMCO organized and operated as "qualified REIT subsidiaries" within the meaning
of the Code. Qualified REIT subsidiaries are not treated as separate entities
from their parent REIT for Federal income tax purposes. Instead, all assets,
liabilities and items of income, deduction and credit of each qualified REIT
subsidiary are treated as assets, liabilities and items of AIMCO. Each qualified
REIT subsidiary therefore is not subject to Federal corporate income taxation,
although it may be subject to state or local taxation. In addition, AIMCO's
ownership of the voting stock of each qualified REIT subsidiary does not violate
the general restriction against ownership of more than 10% of the voting
securities of any issuer.
 
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  Annual Distribution Requirements
 
     AIMCO, in order to qualify as a REIT, is required to distribute dividends
(other than capital gain dividends) to its stockholders in an amount at least
equal to (1) the sum of (i) 95% of AIMCO's "REIT taxable income" (computed
without regard to the dividends paid deduction and AIMCO's net capital gain) and
(ii) 95% of the net income (after tax), if any, from foreclosure property, minus
(2) the sum of certain items of noncash income. Such distributions must be paid
in the taxable year to which they relate, or in the following taxable year if
declared before AIMCO timely files its tax return for such year and if paid with
or before the first regular dividend payment after such declaration. To the
extent that AIMCO distributes at least 95%, but less than 100%, of its "REIT
taxable income," as adjusted, it will be subject to tax thereon at ordinary
corporate tax rates. AIMCO may elect to retain, rather than distribute, its net
long-term capital gains and pay tax on such gains. In such a case, AIMCO could
elect to have its stockholders include their proportionate share of such
undistributed long-term capital gains in income and receive a credit for their
share of the tax paid by AIMCO. AIMCO's stockholders would then increase the
adjusted basis of their AIMCO shares by the difference between the designated
amounts included in their long-term capital gains and the tax deemed paid with
respect to their shares. If AIMCO should fail to distribute during each calendar
year at least the sum of (1) 85% of its REIT ordinary income for such year and
(2) 95% of its REIT capital gain net income for such year (excluding retained
long-term capital gains), and (3) any undistributed taxable income from prior
periods, AIMCO would be subject to a 4% excise tax on the excess of such
required distribution over the amounts actually distributed. AIMCO believes that
it has made, and intends to make, timely distributions sufficient to satisfy
these annual distribution requirements.
 
     It is possible that AIMCO, from time to time, may not have sufficient cash
to meet the 95% distribution requirement due to timing differences between (x)
the actual receipt of cash (including receipt of distributions from the AIMCO
Operating Partnership) and (y) the inclusion of certain items in income by AIMCO
for Federal income tax purposes. In the event that such timing differences
occur, in order to meet the 95% distribution requirement, AIMCO may find it
necessary to arrange for short-term, or possibly long-term, borrowings or to pay
dividends in the form of taxable distributions of property.
 
     Under certain circumstances, AIMCO may be able to rectify a failure to meet
the distribution requirement for a year by paying "deficiency dividends" to
stockholders in a later year, which may be included in AIMCO's deduction for
dividends paid for the earlier year. Thus, AIMCO may be able to avoid being
taxed on amounts distributed as deficiency dividends; however, AIMCO will be
required to pay interest and a penalty based on the amount of any deduction
taken for deficiency dividends.
 
  Distribution of Acquired Earnings and Profits
 
     The Code provides that when a REIT acquires a corporation that is not a
REIT (such as IFG or IPT, if IPT failed to qualify as a REIT), the REIT may
qualify as a REIT only if, as of the close of the year of acquisition, the REIT
has no "earnings and profits" acquired from such acquired corporation. In the
IFG Merger, AIMCO succeeded to the earnings and profits of IFG and, therefore,
AIMCO must distribute such earnings and profits effective on or before December
31, 1998. AIMCO retained independent certified public accountants to review the
determination of IFG's earnings and profits for
 
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purposes of this requirement. The determination of the independent certified
public accountants will be based upon IPT's tax returns as filed with the IRS
and other assumptions and qualifications set forth in the reports issued by such
accountants. Any adjustments to IFG's income for taxable years ending on or
before the closing of the IFG Merger, including as a result of an examination of
its returns by the IRS could affect the calculation of IFG's earnings and
profits. Furthermore, the determination of earnings and profits requires the
resolution of certain technical tax issues with respect to which there is no
authority directly on point and, consequently, the proper treatment of these
issues for earnings and profits purposes is not free from doubt. There can be no
assurance that the IRS will not examine the tax returns of IFG and propose
adjustments to increase its taxable income and therefore its earnings and
profits. In this regard, the IRS can consider all taxable years of IFG as open
for review for purposes of determining the amount of such earnings and profits.
 
FAILURE TO QUALIFY
 
     If AIMCO fails to qualify for taxation as a REIT in any taxable year, and
the relief provisions do not apply, AIMCO will be subject to tax (including any
applicable alternative minimum tax) on its taxable income at regular corporate
rates. Distributions to stockholders in any year in which AIMCO fails to qualify
will not be deductible by AIMCO nor will they be required to be made. In such
event, to the extent of current and accumulated earnings and profits, all
distributions to stockholders will be taxable as ordinary income, and, subject
to certain limitations of the Code, corporate distributees may be eligible for
the dividends received deduction. Unless AIMCO is entitled to relief under
specific statutory provisions, AIMCO would also be disqualified from taxation as
a REIT for the four taxable years following the year during which qualification
was lost. It is not possible to state whether in all circumstances AIMCO would
be entitled to such statutory relief.
 
TAX ASPECTS OF AIMCO'S INVESTMENTS IN PARTNERSHIPS
 
  General
 
     Substantially all of AIMCO's investments are held indirectly through the
AIMCO Operating Partnership. In general, partnerships are "pass-through"
entities that are not subject to Federal income tax. Rather, partners are
allocated their proportionate shares of the items of income, gain, loss,
deduction and credit of a partnership, and are potentially subject to tax
thereon, without regard to whether the partners receive a distribution from the
partnership. AIMCO will include in its income its proportionate share of the
foregoing partnership items for purposes of the various REIT income tests and in
the computation of its REIT taxable income. Moreover, for purposes of the REIT
asset tests, AIMCO will include its proportionate share of assets held by the
Subsidiary Partnerships. See "Federal Income Taxation of AIMCO and AIMCO
Stockholders-General."
 
  Entity Classification
 
     AIMCO's direct and indirect investment in partnerships involves special tax
considerations, including the possibility of a challenge by the IRS of the
status of any of the Subsidiary Partnerships as a partnership (as opposed to an
association taxable as a
 
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corporation) for Federal income tax purposes. If any of these entities were
treated as an association for Federal income tax purposes, it would be subject
to an entity-level tax on its income. In such a situation, the character of
AIMCO's assets and items of gross income would change and could preclude AIMCO
from satisfying the asset tests and the income tests (see "-- Asset Tests" and
"-- Income Tests"), and in turn could prevent AIMCO from qualifying as a REIT.
See "-- Failure to Qualify" above for a discussion of the effect of AIMCO's
failure to meet such tests for a taxable year. In addition, any change in the
status of any of the Subsidiary Partnerships for tax purposes might be treated
as a taxable event, in which case AIMCO might incur a tax liability without any
related cash distributions.
 
  Tax Allocations with Respect to the Properties
 
     Under the Code and the Treasury Regulations, income, gain, loss and
deduction attributable to appreciated or depreciated property that is
contributed to a partnership in exchange for an interest in the partnership must
be allocated in a manner such that the contributing partner is charged with, or
benefits from, respectively, the unrealized gain or unrealized loss associated
with the property at the time of the contribution. The amount of such unrealized
gain or unrealized loss is generally equal to the difference between the fair
market value of the contributed property at the time of contribution, and the
adjusted tax basis of such property at the time of contribution (a "Book-Tax
Difference"). Such allocations are solely for Federal income tax purposes and do
not affect the book capital accounts or other economic or legal arrangements
among the partners. The AIMCO Operating Partnership was formed by way of
contributions of appreciated property (including certain of the Owned
Properties). Consequently, allocations must be made in a manner consistent with
these requirements. Where a partner contributes cash to a partnership that holds
appreciated property, the Treasury Regulations provide for a similar allocation
of such items to the other partners. These rules apply to the contribution by
AIMCO to the AIMCO Operating Partnership of the cash proceeds received in any
offerings of its stock.
 
     In general, certain OP unitholders in the AIMCO Operating Partnership will
be allocated lower amounts of depreciation deductions for tax purposes and
increased taxable income and gain on the sale by the AIMCO Operating Partnership
or other Subsidiary Partnerships of the contributed properties. This will tend
to eliminate the Book-Tax Difference over the life of these partnerships.
However, the special allocations do not always entirely rectify the Book-Tax
Difference on an annual basis or with respect to a specific taxable transaction
such as a sale. Thus, the carryover basis of the contributed properties in the
hands of the AIMCO Operating Partnership or other Subsidiary Partnerships may
cause AIMCO to be allocated lower depreciation and other deductions, and
possibly greater amounts of taxable income in the event of a sale of such
contributed assets in excess of the economic or book income allocated to it as a
result of such sale. This may cause AIMCO to recognize taxable income in excess
of cash proceeds, which might adversely affect AIMCO's ability to comply with
the REIT distribution requirements. See "-- Annual Distribution Requirements."
 
     With respect to any property purchased or to be purchased by any of the
Subsidiary Partnerships (other than through the issuance of OP units) subsequent
to the formation of
 
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AIMCO, such property will initially have a tax basis equal to its cost and the
special allocation provisions described above will not apply.
 
  Sale of the Properties
 
     AIMCO's share of any gain realized by the AIMCO Operating Partnership or
any other Subsidiary Partnership on the sale of any property held as inventory
or primarily for sale to customers in the ordinary course of business will be
treated as income from a prohibited transaction that is subject to a 100%
penalty tax. See "-- Income Tests." Under existing law, whether property is held
as inventory or primarily for sale to customers in the ordinary course of a
partnership's trade or business is a question of fact that depends on all the
facts and circumstances with respect to the particular transaction. In general,
the AIMCO Operating Partnership and the other Subsidiary Partnerships intend to
hold the Owned Properties for investment with a view to long-term appreciation,
to engage in the business of acquiring, developing, owning and operating the
Owned Properties (and other apartment properties) and to make such occasional
sales of the Owned Properties, including peripheral land, as are consistent with
AIMCO's investment objectives.
 
TAXATION OF MANAGEMENT SUBSIDIARIES
 
     A portion of the amounts to be used to fund distributions to stockholders
is expected to come from distributions made by the Management Subsidiaries to
the AIMCO Operating Partnership, and interest paid by the Management
Subsidiaries on certain notes held by the AIMCO Operating Partnership. In
general, the Management Subsidiaries pay Federal, state and local income taxes
on their taxable income at regular corporate rates. Any Federal, state or local
income taxes that the Management Subsidiaries are required to pay will reduce
AIMCO's cash flow from operating activities and its ability to make payments to
holders of its securities.
 
TAXATION OF TAXABLE DOMESTIC STOCKHOLDERS
 
  Distributions
 
     Provided AIMCO qualifies as a REIT, distributions made to AIMCO's taxable
domestic stockholders out of current or accumulated earnings and profits (and
not designated as capital gain dividends) will be taken into account by them as
ordinary income and will not be eligible for the dividends received deduction
for corporations. Distributions (and retained long-term capital gains) that are
designated as capital gain dividends will be taxed as long-term capital gains
(to the extent that they do not exceed AIMCO's actual net capital gain for the
taxable year) without regard to the period for which the stockholder has held
its stock. However, corporate stockholders may be required to treat up to 20% of
certain capital gain dividends as ordinary income. In addition, net capital
gains attributable to the sale of depreciable real property held for more than
12 months are subject to a 25% maximum Federal income tax rate to the extent of
previously claimed real property depreciation.
 
     Distributions in excess of current and accumulated earnings and profits
will not be taxable to a stockholder to the extent that they do not exceed the
adjusted basis of the stockholder's shares in respect of which the distributions
were made, but rather will reduce the adjusted basis of such shares. To the
extent that such distributions exceed the adjusted
 
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basis of a stockholder's shares in respect of which the distributions were made,
they will be included in income as long-term capital gain (or short-term capital
gain if the shares have been held for one year or less) provided that the shares
are a capital asset in the hands of the stockholder. In addition, any dividend
declared by AIMCO in October, November or December of any year and payable to a
stockholder of record on a specified date in any such month will be treated as
both paid by AIMCO and received by the stockholder on December 31 of such year,
provided that the dividend is actually paid by AIMCO during January of the
following calendar year. Stockholders may not include in their individual income
tax returns any net operating losses or capital losses of AIMCO.
 
  Dispositions of AIMCO Common Stock
 
     In general, under the recently enacted Internal Revenue Service
Restructuring and Reform Act of 1998, capital gains recognized by individuals
and other non-corporate taxpayers upon the sale or disposition of shares of
AIMCO Common Stock will be subject to a maximum Federal income tax rate of 20%
if the shares of AIMCO Common Stock are held for more than 12 months and will be
taxed at ordinary income rates if the AIMCO Common Stock is held for 12 months
or less. Capital losses recognized by a stockholder upon the disposition of
shares of AIMCO Common Stock held for more than 12 months at the time of
disposition will be a long-term capital loss. In addition, any loss upon a sale
or exchange of shares of AIMCO Common Stock by a stockholder who has held such
shares for six months or less (after applying certain holding period rules) will
be treated as a long-term capital loss to the extent of distributions from AIMCO
required to be treated by such stockholder as long-term capital gain.
 
TAXATION OF FOREIGN STOCKHOLDERS
 
     The following is a discussion of certain anticipated Federal income and
estate tax consequences of the ownership and disposition of shares of AIMCO
Common Stock applicable to Non-U.S. Holders of shares of AIMCO Common Stock. A
"Non-U.S. Holder" is any person other than (1) a citizen or resident of the
United States, (2) a corporation or partnership created or organized in the
United States or under the laws of the United States or of any state thereof or
the District of Columbia, (3) an estate whose income is includable in gross
income for U.S. Federal income tax purposes regardless of its source or (4) a
trust if a United States court is able to exercise primary supervision over the
administration of such trust and one or more United States fiduciaries have the
authority to control all substantial decisions of such trust. This discussion is
based on current law and is for general information only. The discussion
addresses only certain and not all aspects of U.S. Federal income and estate
taxation.
 
  Ordinary Dividends
 
     The portion of dividends received by Non-U.S. Holders payable out of
AIMCO's earnings and profits which are not attributable to capital gains of
AIMCO and which are not effectively connected with a U.S. trade or business of
the Non-U.S. Holder will be subject to U.S. withholding tax at the rate of 30%
(unless reduced by treaty). In general, Non-U.S. Holders will not be considered
engaged in a U.S. trade or business solely as a result of their ownership of
shares of AIMCO Common Stock. In cases where the dividend income from a Non-U.S.
Holder's investment in shares of AIMCO Common
 
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Stock is (or is treated as) effectively connected with the Non-U.S. Holder's
conduct of a U.S. trade or business, the Non-U.S. Holder generally will be
subject to U.S. tax at graduated rates, in the same manner as U.S. holders are
taxed with respect to such dividends (and may also be subject to the 30% branch
profits tax in the case of a Non-U.S. Holder that is a corporation).
 
  Non-Dividend Distributions
 
     Unless shares of AIMCO Common Stock constitute a United States Real
Property Interest (a "USRPI") within the meaning of the Foreign Investment in
Real Property Tax Act of 1980 ("FIRPTA"), distributions by AIMCO which are not
dividends out of the earnings and profits of AIMCO will not be subject to
Federal income or withholding tax. If it cannot be determined at the time a
distribution is made whether or not such distribution will be in excess of
current and accumulated earnings and profits, the distribution will be subject
to withholding at the rate applicable to dividends. However, the Non-U.S. Holder
may seek a refund of such amounts from the IRS if it is subsequently determined
that such distribution was, in fact, in excess of current and accumulated
earnings and profits of AIMCO. If shares of AIMCO Common Stock constitute a
USRPI, such distributions will be subject to 10% withholding and taxed pursuant
to FIRPTA at a rate of 35% to the extent such distributions exceed a
stockholder's basis in his or her shares of AIMCO Common Stock. See
"-- Dispositions of AIMCO Common Stock."
 
  Capital Gain Dividends
 
     Under FIRPTA, a distribution made by AIMCO to a Non-U.S. Holder, to the
extent attributable to gains from dispositions of USRPIs such as the properties
beneficially owned by AIMCO ("USRPI Capital Gains"), will be considered
effectively connected with a U.S. trade or business of the Non-U.S. Holder and
subject to Federal income tax at the rates applicable to U.S. individuals or
corporations, without regard to whether such distribution is designated as a
capital gain dividend. In addition, AIMCO will be required to withhold tax equal
to 35% of the amount of dividends to the extent such dividends constitute USRPI
Capital Gains. Distributions subject to FIRPTA may also be subject to a 30%
branch profits tax in the hands of a Non-U.S. Holder that is a corporation.
 
  Dispositions of AIMCO Common Stock
 
     Unless shares of AIMCO Common Stock constitute a USRPI, a sale of such
stock by a Non-U.S. Holder generally will not be subject to Federal taxation
under FIRPTA. The stock will not constitute a USRPI if AIMCO is a "domestically
controlled REIT." A domestically controlled REIT is a REIT in which, at all
times during a specified testing period, less than 50% in value of its shares is
held directly or indirectly by Non-U.S. Holders. AIMCO believes that it is, and
it expects to continue to be, a domestically controlled REIT and, therefore, the
sale of shares of AIMCO Common Stock should not be subject to taxation under
FIRPTA. Because most shares of AIMCO Common Stock are publicly traded, however,
no assurance can be given that AIMCO is or will continue to be a domestically
controlled REIT.
 
     If AIMCO does not constitute a domestically controlled REIT, a Non-U.S.
Holder's sale of stock generally will still not be subject to tax under FIRPTA
as a sale of a USRPI
 
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provided that (1) the stock is "regularly traded" (as defined by applicable
Treasury Regulations) on an established securities market (e.g., the NYSE, on
which the AIMCO Common Stock is listed) and (2) the selling Non-U.S. Holder held
5% or less of AIMCO's outstanding stock at all times during a specified testing
period.
 
     If gain on the sale of stock of AIMCO were subject to taxation under
FIRPTA, the Non-U.S. Holder generally would be subject to the same treatment as
a U.S. holder with respect to such gain (subject to applicable alternative
minimum tax and a special alternative minimum tax in the case of nonresident
alien individuals) and the purchaser of the stock could be required to withhold
10% of the purchase price and remit such amount to the IRS.
 
     Gain from the sale of shares of AIMCO Common Stock that would not otherwise
be subject to FIRPTA will nonetheless be taxable in the United States to a
Non-U.S. Holder in two cases: (1) if the Non-U.S. Holder's investment in the
shares of AIMCO Common Stock is effectively connected with a U.S. trade or
business conducted by such Non-U.S. Holder, the Non-U.S. Holder will be subject
to the same treatment as a U.S. stockholder with respect to such gain, or (2) if
the Non-U.S. Holder is a nonresident alien individual who was present in the
United States for 183 days or more during the taxable year and has a "tax home"
in the United States, the nonresident alien individual will be subject to a 30%
tax on the individual's capital gain.
 
  Estate Tax
 
     Shares of AIMCO Common Stock owned or treated as owned by an individual who
is not a citizen or resident (as specially defined for Federal estate tax
purposes) of the United States at the time of death will be includable in the
individual's gross estate for Federal estate tax purposes, unless an applicable
estate tax treaty provides otherwise. Such individual's estate may be subject to
Federal estate tax on the property includable in the estate for Federal estate
tax purposes.
 
TAXATION OF TAX-EXEMPT STOCKHOLDERS
 
     Tax-exempt entities, including qualified employee pension and profit
sharing trusts and individual retirement accounts ("Exempt Organizations"),
generally are exempt from Federal income taxation. However, they are subject to
taxation on their unrelated business taxable income ("UBTI"). While certain
investments in real estate generate UBTI, the IRS has ruled that dividend
distributions from a REIT to an exempt employee pension trust do not constitute
UBTI, provided that the shares of the REIT are not otherwise used in an
unrelated trade or business of the exempt employee pension trust. Based on that
ruling, amounts distributed by AIMCO to Exempt Organizations should generally
not constitute UBTI. However, if an Exempt Organization finances its acquisition
of AIMCO stock with debt, a portion of its income from AIMCO will constitute
UBTI pursuant to the "debt-financed property" rules. Furthermore, social clubs,
voluntary employee benefit associations, supplemental unemployment benefit
trusts, and qualified group legal services plans that are exempt from taxation
under paragraphs (7), (9), (17) and (20), respectively, of section 501(c) of the
Code are subject to different UBTI rules, which generally will require them to
characterize distributions from AIMCO as UBTI. In addition, in certain
circumstances, a pension trust that owns more than 10% of AIMCO's
 
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stock is required to treat a percentage of the dividends from AIMCO as UBTI (the
"UBTI Percentage"). The UBTI Percentage is the gross income derived by AIMCO
from an unrelated trade or business (determined as if AIMCO were a pension
trust) divided by the gross income of AIMCO for the year in which the dividends
are paid. The UBTI rule applies to a pension trust holding more than 10% of
AIMCO's stock only if (1) the UBTI Percentage is at least 5%, (2) AIMCO
qualifies as a REIT by reason of the modification of the 5/50 Rule that allows
the beneficiaries of the pension trust to be treated as holding shares of AIMCO
stock in proportion to their actuarial interest in the pension trust, and (3)
either (A) one pension trust owns more than 25% of the value of shares of AIMCO
Common Stock or (B) a group of pension trusts each individually holding more
than 10% of the value of shares of AIMCO Common Stock collectively owns more
that 50% of the value of shares of AIMCO Common Stock. The restrictions on
ownership and transfer of shares of AIMCO Common Stock should prevent an Exempt
Organization from owning more than 10% of the value of AIMCO's Common Stock.
 
INFORMATION REPORTING REQUIREMENTS AND BACKUP WITHHOLDING
 
     AIMCO will report to its U.S. stockholders and to the IRS the amount of
distributions paid during each calendar year, and the amount of tax withheld, if
any. Under the backup withholding rules, a stockholder may be subject to backup
withholding at the rate of 31% with respect to distributions paid unless such
holder (1) is a corporation or comes within certain other exempt categories and,
when required, demonstrates this fact or (2) provides a taxpayer identification
number, certifies as to no loss of exemption from backup withholding, and
otherwise complies with the applicable requirements of the backup withholding
rules. A stockholder who does not provide AIMCO with such holder's correct
taxpayer identification number also may be subject to penalties imposed by the
IRS. Any amount paid as backup withholding will be creditable against the
stockholder's income tax liability. In addition, AIMCO may be required to
withhold a portion of capital gain distributions to any Non-U.S. Holders who
fail to certify their foreign status to AIMCO. The IRS has issued final Treasury
Regulations regarding the backup withholding rules as applied to Non-U.S.
Holders. These final Treasury Regulations alter the current system of backup
withholding compliance and will be effective for payments made after December
31, 1999. IPT shareholders should consult their tax advisors regarding the
application of these Treasury Regulations.
 
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               COMPARISON RIGHTS OF SHAREHOLDERS OF AIMCO AND IPT
 
     Upon consummation of the Merger, IPT shareholders may become holders of
AIMCO Common Stock. Accordingly, the rights of IPT shareholders following the
Merger will be governed by the MGCL, the AIMCO Charter and the AIMCO Bylaws
instead of the real estate investment trust provisions of the MCAA, certain
provisions of the MGCL, the IPT Declaration and the IPT Bylaws.
 
     The following is a summary of material differences between the rights and
privileges of IPT shareholders and those of holders of AIMCO Common Stock. This
summary is not meant to be relied upon as an exhaustive description of such
differences and is qualified in its entirety by reference to the AIMCO Charter,
the AIMCO Bylaws, the IPT Declaration, the IPT Bylaws, the MCAA and the MGCL.
 
AUTHORIZED SHARES
 
  IPT
 
     As of January 15, 1999, the authorized shares of IPT consist of 400,000,000
IPT Common Shares and 100,000,000 preferred shares of beneficial interest, par
value $.01 per share.
 
  AIMCO
 
     As of January 15, 1999, the authorized stock of AIMCO consists of
484,027,500 shares of common stock and 26,460,000 shares of preferred stock, par
value $.01 per share. A description of the authorized stock of AIMCO is set
forth under "Description of Common Stock of AIMCO" and "Description of Preferred
Stock of AIMCO."
 
BOARD OF TRUSTEES/DIRECTORS
 
  IPT
 
     Pursuant to the IPT Bylaws, there are 11 trustees of IPT. The IPT
Declaration divides the trustees of the IPT Board into 3 staggered classes. The
trustees hold office for a term of 3 years and until their successors are
elected and qualify. With respect to the election or removal of trustees,
holders of IPT Common Shares are entitled to one vote per share. No other
classes or series of shares of beneficial interest are outstanding which are
entitled to vote on the election or removal of trustees.
 
     The IPT Bylaws provide for two designations of IPT trustees, a "Continuing
Trustee" and an "AIMCO-nominated Trustee," each authorized and empowered with
certain rights and duties. The IPT Bylaws provide that a majority of the
Continuing Trustees must approve the following IPT actions:
 
(1) any amendments to the Merger Agreement;
 
(2) terminating the Merger Agreement due to a offer that the Continuing Trustees
determine is superior under the terms of the Merger Agreement.
 
(3) the enforcement of any employment, consulting, retention or restricted share
agreements with employes of or consultants to IPT that are in effect on October
1, 1998;
 
                                       240
<PAGE>   247
 
(4) any amendments to the IPLP Partnership Agreement;
 
(5) any amendments to the IPT Declaration or IPT Bylaws (other than in
connection with additional exemptions from the Maryland control share
acquisition statute);
 
(6) making loans or advances of money by IPT or its subsidiaries to AIMCO or its
subsidiaries; and
 
(7) declaration of dividends in respect of IPT Common Shares.
 
     The Continuing Trustees may retain their own legal, financial and other
advisors as they deem appropriate at IPT's expense. All rights granted to the
Continuing Trustees under the IPT Bylaws terminate upon the earlier of January
1, 2002 and the date the Merger Agreement is terminated by IPT due to an
anticipatory breach by AIMCO or Merger Sub.
 
  AIMCO
 
     The AIMCO Charter and the AIMCO Bylaws provide that AIMCO shall have at
least 3 and not more than 9 directors, with the precise number to be fixed by,
or in accordance with, the AIMCO Bylaws. Directors on the Board of Directors of
AIMCO are not classified into classes and hold office for a term of one year and
until their successors are elected and qualify. With respect to the election or
removal of directors, holders of AIMCO Common Stock are entitled to one vote per
share of AIMCO Common Stock, and holders of Class E Preferred Stock are entitled
to one-half of one vote per share of Class E Preferred Stock. The holders of
other classes or series of AIMCO stock are not entitled to vote on the election
or removal of directors, subject to certain limited exceptions.
 
COMMITTEES OF THE BOARD
 
  IPT
 
     Pursuant to the IPT Declaration and IPT Bylaws, the IPT Board may designate
committees of the IPT Board. The IPT Bylaws require that two standing
committees, the Executive Committee and the AIMCO Committee, be maintained until
January 1, 2002. The Executive Committee consists of four of the AIMCO-nominated
Trustees and any vacancies on such committee may be filled only with the
approval of a majority of the AIMCO-nominated Trustees. The current members of
the Executive Committee are Terry Considine, Patrick Foye, Peter Kompaniez and
Thomas Toomey. Subject to the IPT Declaration provision that no committee shall
have the power (i) to authorize dividends, (ii) to issue shares except pursuant
to a general authorization of the entire board on any stock option or similar
plan adopted by the IPT Board, (iii) recommend any action to the IPT
shareholders or (iv) amend the IPT Bylaws, the Executive Committee is authorized
to act on all matters regarding the management of IPT, unless certain matters
are reserved to other committees or trustees.
 
     The AIMCO Committee consists of Patrick J. Foye and Peter K. Kompaniez and
any vacancies on such committee may be filled only with the approval of a
majority of the AIMCO-nominated Trustees. The AIMCO Committee is authorized and
required to act on all matters regarding IPT relating to (i) all transactions
between IPT or its subsidiaries
 
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<PAGE>   248
 
and AIMCO and its subsidiaries other than those actions that may only be taken
with the approval of the Continuing Trustees, (ii) any offer by AIMCO or its
affiliates to purchase limited partner interests in limited partnerships
controlled or affiliated with IPT or WFA and (iii) any public announcement or
filing with a governmental authority.
 
     In addition, the IPT Board currently has an audit committee and a
compensation committee.
 
  AIMCO
 
     Pursuant to the AIMCO Bylaws, the Board of Directors of AIMCO may appoint
from among its members committees of the Board of Directors of AIMCO. The Board
of Directors of AIMCO currently has an executive committee, an audit committee
and a compensation committee.
 
CUMULATIVE VOTING
 
     Neither IPT nor AIMCO uses cumulative voting in the election of trustees or
directors.
 
NEWLY CREATED POSITIONS OR VACANCIES
 
  IPT
 
     The IPT Declaration provides that any vacancy on the Board of Trustees,
whether resulting from resignation, removal, termination or death or as a result
of an increase in the number of trustees, may be filled by a majority of the
trustees of the same class as the vacant trustee then in office, by the sole
remaining trustee of the same class or, if there are not remaining trustees of
that class, by the vote of a majority of the remaining trustees. In the event
that, at any time, a Continuing Trustee ceases to be a trustee for any reason
(including removal for cause), the vacancy created thereby shall be filled in
accordance with the IPT Declaration but only with an individual nominated and
approved by a majority of the Continuing Trustees. In the event that an
AIMCO-nominated Trustee shall cease to be a trustee for any reason (including
removal for cause), except one whose seat is vacated by acceptance of his or her
resignation upon a termination of the Merger Agreement, the vacancy created
thereby shall be filled in accordance with the IPT Declaration but only with an
individual nominated and approved by the remaining AIMCO-nominated Trustees.
 
  AIMCO
 
     The AIMCO Charter provides that a majority of the remaining directors, even
if less than a quorum or, if applicable, a sole remaining director, may appoint
a director to fill a vacancy for any reason except an increase in the number of
directors, and a majority of the entire board may fill a vacancy which results
from an increase in the number of directors. Under the MGCL, the stockholders
may also elect a successor to fill a vacancy which results from removal of a
director. Any director elected to fill a vacancy may serve until the next annual
meeting of stockholders, upon which a successor may be elected to serve the
remaining term, if any.
 
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<PAGE>   249
 
REMOVAL OF TRUSTEES OR DIRECTORS
 
  IPT
 
     The IPT Declaration provides that a trustee may be removed only for cause
by the vote of the holders of not less than two-thirds of the shares entitled to
vote in the election of trustees.
 
  AIMCO
 
     The AIMCO Charter provides that a director may be removed only for cause
and only by the vote of two-thirds of all the votes entitled to be cast in the
election of directors.
 
SPECIAL MEETING
 
  IPT
 
     Special meetings of shareholders may be called by a majority of the IPT
Board, the Chairman of the Board or the President of IPT and may be called by
the secretary upon the written request of shareholders holding in the aggregate
not less than 25% of the outstanding IPT Common Shares entitled to vote.
 
  AIMCO
 
     Special meetings of stockholders may be called by a majority of the Board
of Directors of AIMCO, by the Chairman or Vice Chairman of the Board of
Directors of AIMCO, or by the President of AIMCO, and may be called upon the
written request of stockholders entitled to cast at least 25% of all the votes
entitled to be cast at the meeting.
 
SHAREHOLDER ACTION BY WRITTEN CONSENT
 
  IPT
 
     Pursuant to the IPT Declaration, any action required or permitted to be
taken by shareholders may not be effected by written consent of the
shareholders.
 
     AIMCO. Pursuant to the MGCL and the AIMCO Charter, any action upon which a
vote of stockholders is required or permitted may be taken without a meeting or
vote of stockholders by the unanimous written consent of all of the stockholders
entitled to vote thereon.
 
RESTRICTIONS ON SHARE TRANSFERS
 
  IPT
 
     Subject to certain exceptions and conditions specified in the IPT
Declaration, no holder may own, or be deemed to own by virtue of various
attribution and constructive ownership provisions of the Code, more than 9.8%
(other than in the case of certain holders described in the IPT Declaration) of
the outstanding shares of beneficial interest of IPT.
 
                                       243
<PAGE>   250
 
  AIMCO
 
     Subject to certain exceptions and conditions specified in the AIMCO
Charter, no holder may own, or be deemed to own by virtue of various attribution
and constructive ownership provisions of the Code and Rule 13d-3 under the
Exchange Act, more than 8.7% (or 15% in the case of certain pension trusts
described in the Code, investment companies registered under the Investment
Company Act of 1940, as amended, and Mr. Considine) of the outstanding shares of
AIMCO Common Stock.
 
PREEMPTIVE RIGHTS
 
     Neither IPT shareholders nor AIMCO stockholders have preemptive rights with
respect to issuances of shares of beneficial interest or stock.
 
BUSINESS COMBINATIONS
 
     The MGCL prohibits any business combination (defined to include a variety
of transactions, including mergers, consolidations, share exchanges, sales or
dispositions of assets and issuances of stock) between a Maryland corporation
(defined to include a Maryland REIT) and any interested stockholder (defined
generally as any person who, directly or indirectly, beneficially owns 10% or
more of the voting power of the outstanding voting stock of the corporation or
certain affiliates of the corporation) for a period of five years after the most
recent date such stockholder became an interested stockholder. After such
five-year period, a business combination between a Maryland corporation and such
interested stockholder is prohibited unless either certain "fair-price"
provisions are complied with or the business combination is approved by certain
supermajority stockholder votes. The MGCL restrictions do not apply to a
business combination with an interested stockholder if such business combination
is approved or exempted from the MGCL restrictions by a resolution of the board
of directors adopted prior to the date on which the interested stockholder
became an interested stockholder.
 
     A Maryland corporation also may adopt an amendment to its charter electing
not to be subject to the business combination provisions of the MGCL in whole or
in part. Any such amendment generally must be approved by the affirmative vote
of at least 80% of the votes entitled to be cast by all holders of outstanding
shares of voting stock and two-thirds of the votes entitled to be cast by
holders of outstanding shares of voting stock who are not interested
stockholders, may not be effective until 18 months after the vote of
stockholders and may not apply to an interested stockholder who became such on
or before the date of the vote.
 
  IPT
 
     The IPT Declaration contains provisions exempting IFG, any successor to IFG
(including AIMCO), any affiliate of IFG or successor thereto, Andrew L. Farkas
and any affiliate of Mr. Farkas from the provisions of the business combination
statute. In addition, the IPT Board passed a resolution on March 13, 1998 to
exempt any business combination between IPT and AIMCO.
 
                                       244
<PAGE>   251
 
  AIMCO
 
     The Board of Directors of AIMCO has not adopted a resolution to exempt any
AIMCO stockholder from the MGCL's business combination restrictions, and AIMCO
has not amended its charter electing not to be subject to the business
combination provisions of the MGCL.
 
CONTROL SHARE ACQUISITIONS
 
     Subtitle 7 of Title 3 of the MGCL provides that "control shares" of a
Maryland corporation (defined to include a Maryland REIT) acquired in a "control
share acquisition" have no voting rights except to the extent approved by a vote
of two-thirds of the votes entitled to be cast on the matter, excluding shares
owned by the acquirer or by officers or directors who are employees of the
corporation. "Control shares" are voting shares of stock which, if aggregated
with all other shares of stock previously acquired by the acquirer or in respect
of which the acquirer is able to exercise or direct the exercise of voting power
in electing directors, fall within one of the following ranges of voting power:
(i) one-fifth or more but less than one-third, (ii) one-third or more but less
than a majority, or (iii) a majority of all voting power. Control shares do not
include shares that the acquirer is then entitled to vote as a result of having
previously obtained stockholder approval.
 
     A "control share acquisition" means the acquisition of control shares,
subject to certain exceptions. A person who has made or proposes to make a
control share acquisition, upon satisfaction of certain conditions (including an
undertaking to pay expenses), may compel the board of directors of the
corporation to call a special meeting of stockholders, to be held within 50 days
of demand, to consider voting rights for the shares. If no request for a meeting
is made, the corporation may itself present the question at any stockholders'
meeting.
 
     If voting rights are not approved at the meeting or if the acquiror does
not deliver an acquiring person statement as required by the statute, then,
subject to certain conditions and limitations, the corporation may redeem any or
all of the control shares (except those for which voting rights have previously
been approved) for fair value determined, without regard to the absence of
voting rights for the control shares, as of the date of the last control share
acquisition by the acquiror or of any meeting of stockholders at which the
voting rights of such shares were considered and not approved. If voting rights
for control shares are approved at a stockholders' meeting and the acquirer
becomes entitled to vote a majority of the shares entitled to vote, all other
stockholders may exercise appraisal rights. The fair value of the shares as
determined for purposes of such appraisal rights may not be less than the
highest price per share paid by the acquiror in the control share acquisition,
and certain limitations and restrictions otherwise applicable to the exercise of
appraisal rights do not apply in the context of a control share acquisition.
 
     The control share acquisition statute does not apply to shares acquired in
a merger, consolidation or share exchange if the corporation is a party to the
transaction, or to acquisitions approved or exempted by the charter or bylaws of
the corporation prior to the control share acquisition.
 
                                       245
<PAGE>   252
 
  IPT
 
     The IPT Bylaws contain a provision exempting the acquisition of IPT Common
Shares by AIMCO occurring as a result of the IFG Merger from the control share
acquisition statute.
 
  AIMCO
 
     The AIMCO Charter and Bylaws do not contain any exemption from the control
share acquisition statute, which could have the effect of discouraging offers to
acquire AIMCO and of increasing the difficulty of consummating any such offer.
 
APPRAISAL RIGHTS
 
     Under the MGCL, stockholders of a Maryland corporation generally have the
right to demand and receive payment of the "fair value" of their stock in the
event of (i) a merger or consolidation of the corporation, (ii) a share exchange
involving their shares, (iii) a transfer of all or substantially all assets of
the corporation not in the ordinary course of business, (iv) an amendment to the
charter of the corporation which alters the contract rights, as expressly set
forth in the charter, of any outstanding stock and which substantially adversely
affects the stockholder's rights, unless the right to do so is preserved by the
charter, (v) certain business combinations of the corporation with interested
stockholders or (vi) unless the charter or bylaws of the corporation otherwise
provide, after an approval by the stockholders of voting rights for control
shares which constitute a majority of the voting power of the corporation.
However, except as otherwise provided by the provisions of the MGCL regarding
business combinations with interested stockholders, stockholders do not have
appraisal rights if, among other things, their stock is listed on a national
securities exchange on the record date for determining stockholders entitled to
vote on the transaction. Under the MCAA, shareholders of a Maryland REIT
objecting to a merger of the REIT have the same appraisal rights as an objecting
stockholder to a merger of a Maryland corporation.
 
     As the IPT Common Shares are listed on a national securities exchange,
holders of IPT Common Shares are not entitled to appraisal rights in connection
with the Merger. Because AIMCO is not a party to the Merger, holders of AIMCO
Common Stock are not entitled to appraisal rights in connection with the Merger.
 
INDEMNIFICATION
 
     Under the MGCL, a Maryland corporation may indemnify any director or
officer made a party to any proceeding by reason of his or her service in that
capacity unless it is established that (i) the director's or officer's act or
omission was material to the matter giving rise to the proceeding and was
committed in bad faith or resulted from an act of deliberate dishonesty, (ii)
the director or officer actually received an improper benefit in money, property
or services or (iii) in the case of criminal proceedings, the director or
officer had reasonable cause to believe the act or omission was unlawful.
 
     The MGCL provides that a determination must be made that a director or
officer has met the standard of conduct set forth above before the director or
officer may be indemnified. The determination may be made by a majority vote of
disinterested directors,
 
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<PAGE>   253
 
by special legal counsel (generally selected by the disinterested directors) or
by the stockholders.
 
     The MGCL also establishes several mandatory rules for indemnification. In a
stockholder derivative suit, a corporation may not indemnify a director or
officer if he or she is adjudged to be liable to the corporation, except for
expenses as ordered by a court. A corporation may not indemnify a director or
officer in respect of any proceeding charging improper benefit to the director
or officer, whether or not involving action in his or her official capacity, in
which the director or officer is adjudged to be liable on the basis that
personal benefit was improperly received, except for expenses as ordered by a
court. Unless limited by the charter, a director or officer who is successful,
on the merits or otherwise, in the defense of any proceeding for which
indemnification is permitted, must be indemnified by the corporation against
reasonable expenses in connection with the proceeding (including attorneys'
fees).
 
     The MGCL permits a corporation to advance reasonable expenses to directors
and officers upon the director's or officer's written affirmation of his or her
good faith belief that he or she has met the required standard of conduct and
after a written undertaking by him or her on his or her behalf to repay the
corporation if it is determined that the standard has not been met.
 
     The MGCL permits a corporation, unless limited by its charter, to indemnify
and advance expenses to an officer, employee or agent of the corporation to the
same extent it may indemnify directors.
 
     The MCAA permits a Maryland REIT to indemnify and advance expenses to
trustees, officers, employees or agents of the trust to the same extent as is
permitted to a Maryland corporation under the MGCL.
 
  IPT
 
     The IPT Declaration and IPT Bylaws require IPT to indemnify all trustees,
officers, employees or agents of IPT to the fullest extent permitted by Maryland
law. The IPT Declaration and IPT Bylaws further provide that IPT is required to
advance to any person who is eligible for indemnification reasonable expenses
incurred by such person who is a party to a proceeding prior to the final
disposition of the proceeding upon receipt by IPT of a notice in writing from
such person stating (i) that in such person's good faith belief the standard of
conduct necessary for indemnification has been met and (ii) that such person
will repay the amount advanced if it is ultimately determined that such standard
of conduct has not been met.
 
  AIMCO
 
     The AIMCO Charter provides that the corporation will indemnify its
directors and its officers (and other individuals) to the fullest extent
permitted by law. The AIMCO Charter further provides that AIMCO may indemnify
any other persons permitted to be indemnified by the MGCL, including employees
and agents, to the extent such indemnification is authorized and determined to
be appropriate by the Board of Directors of AIMCO, the majority of stockholders
entitled to vote on the matter or special legal counsel appointed by the Board
of Directors of AIMCO.
 
                                       247
<PAGE>   254
 
                                 LEGAL MATTERS
 
     Ballard Spahr Andrews and Ingersoll, LLP, Baltimore, Maryland will pass
upon the validity of the shares of AIMCO Common Stock offered hereby. Skadden,
Arps, Slate, Meagher & Flom LLP, Los Angeles, California, has issued an opinion
as to certain Federal income tax matters in connection with this Information
Statement/Prospectus.
 
                                    EXPERTS
 
     Ernst & Young LLP, independent auditors, have audited (i) AIMCO's
consolidated financial statements (and schedule) included in AIMCO's Annual
Report on Form 10-K/A for the year ended December 31, 1997; (ii) Ambassador's
consolidated financial statements as of December 31, 1997 and 1996 and for each
of the three years in the period ended December 31, 1997 included in AIMCO's
Current Report on Form 8-K dated March 17, 1998 (as amended on April 3, 1998);
(iii) Ambassador's consolidated financial statements as of December 31, 1996 and
1995 and for each of the two years in the period ended December 31, 1996 and the
period from August 31, 1994 through December 31, 1994 and the combined financial
statements of Prime Properties (Predecessor to Ambassador) for the period from
January 1, 1994 through August 30, 1994 included in Amendment No. 1 to AIMCO's
Current Report on Form 8-K dated December 23, 1997 filed on February 6, 1998;
(iv) IFG's consolidated financial statements as of December 31, 1997 and 1996
and for each of the three years in the period ended December 31, 1997 included
in AIMCO's Current Report on Form 8-K dated March 17, 1998 (and Amendment No. 1
thereto filed April 3, 1998); (v) Cirque Apartment Communities combined
historical summary of gross income and direct operating expenses for the year
ended December 31, 1997 included in AIMCO's Current Report on Form 8-K dated
November 2, 1998; (vi) Sun Lake Apartments' historical summary of gross income
and direct operating expenses for the year ended December 31, 1997 included in
Amendment No. 3 to AIMCO's Current Report on Form 8-K dated November 2, 1998;
and (vii) Calhoun Beach Club Apartments' historical summary of gross income and
direct operating expenses for the year ended December 31, 1997 included in
AIMCO's Current Report on Form 8-K dated December 21, 1998; as set forth in
their reports, which are incorporated in this prospectus by reference. Ernst &
Young LLP, independent auditors, have audited (i) IPT's and the IPT Predecessor
Entities' consolidated and combined financial statements (and schedule) as of
December 31, 1997 and 1996 and for each of the three years in the period ended
December 31, 1997 appearing in this Information Statement/Prospectus; and (ii)
Shelter Properties Partnerships' combined financial statements (and schedule) as
of December 31, 1996 and 1995 and for each of the three years in the period
ended December 31, 1996 appearing in this Information Statement/ Prospectus; as
set forth in their reports, appearing in this Information Statement/ Prospectus.
These financial statements are incorporated by reference or included in this
prospectus in reliance on their reports, given on their authority as experts in
accounting and auditing.
 
     The combined financial statements of the NPI Partnerships and Century
Properties Partnerships as of December 31, 1996 and 1995, and for each of the
three years in the period ended December 31, 1996 and the related financial
statement schedule appearing in this Information Statement/Prospectus and the
related registration statement, have been audited by Imowitz Koenig & Co. LLP
("Imowitz Koenig") independent auditors, as set
 
                                       248
<PAGE>   255
 
forth in their report thereon appearing elsewhere herein and are included in
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing.
 
     As of December 8, 1997, Imowitz Koenig, the independent accountant
previously engaged as the principal accountant to audit the financial statements
of NPI 4, was dismissed. As of the same date, the firm of Ernst & Young, LLP was
engaged to provide that service for NPI 4. The audit reports of Imowitz Koenig
on the financial statements of NPI 4 as of and for the years ended December 31,
1996 and 1995, did not contain any adverse opinion or disclaimer of opinion, nor
were they qualified or modified as to uncertainty, audit scope or accounting
principles. The decision to change accountants was approved by the board of
directors of the managing general partner of NPI 4 on December 8, 1997. During
NPI 4's two most recent fiscal years and any subsequent interim period preceding
the change, there were no disagreements with the former accountant an any matter
of accounting principles or practices, financial statement disclosure, or
auditing scope or procedure, which disagreements, if not resolved to the
satisfaction of the former accountant, would have caused it to make reference to
the subject matter of the disagreements in connection with its report.
 
     As of November 10, 1998, Imowitz Koenig, the independent accountant
previously engaged as the principal accountant to audit the financial statements
of National Property Investors III ("NPI III"), National Property Investors 5
("NPI 5"), National Property Investors 6 ("NPI 6"), National Property Investors
7 ("NPI 7"), National Property Investors 8 ("NPI 8"), Century Properties Fund
XIV ("CPF XIV"), Century Properties Fund XV ("CPF XV"), Century Properties Fund
XVI ("CPF XVI"), Century Properties Fund XVII ("CPF XVII"), Century Properties
Fund XVIII ("CPF XVIII"), Century Properties Fund XIX ("CPF XIX"), Century
Properties Growth Fund XXII ("CPGF XXII") was dismissed. As of November 24,
1998, the firm of Ernst & Young, LLP was engaged to provide that service for NPI
III, NPI 5, NPI 6, NPI 7, NPI 8, CPF XIV, CPF XV, CPF XVI, CPF XVII, CPF XVIII,
CPF XIX, and CPGF XXII.
 
     The audit reports of Imowitz, Koenig & Co., LLP on the financial statements
of the NPI Partnerships and Century Properties Partnerships as of and for the
years ended December 31, 1997 and 1996, did not contain any adverse opinion or
disclaimer of opinion, nor were they qualified or modified as to uncertainty,
audit scope or accounting principles.
 
     The decision to change accountants was recommended by each of the Managing
General Partners of the NPI Partnerships and Century Properties Partnerships.
 
     During the NPI Partnerships and Century Properties Partnerships' two most
recent fiscal years and any subsequent interim period preceding the change,
there were no disagreements with the former accountant on any matter of
accounting principles or practices, financial statement disclosure, or auditing
scope or procedure, which disagreements, if not resolved to the satisfaction of
the former accountant, would have caused it to make reference to the subject
matter of the disagreements in connection with its report. In addition, there
have been no "reportable events" (as defined in paragraph (a)(1)(iv)(B) of Item
304 of regulation S-B) during the period noted above.
 
     The financial statements of AMIT at December 31, 1997 and 1996 and for each
of the three years in the period ended December 31, 1997 and the related
financial statement schedules, appearing in this Information
Statement/Prospectus and the related registration statement have been audited by
BDO Seidman, LLP, independent Certified Public Accountants, as set forth in
their reports appearing elsewhere herein, are included in
 
                                       249
<PAGE>   256
 
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing.
 
     Beers & Cutler PLLC, independent auditors, have audited (i) Realty
Investment Apartment Communities I's combined historical summary of gross income
and direct operating expenses for the year ended December 31, 1997 included in
AIMCO's Current Report on Form 8-K dated November 2, 1998 and (ii) Realty
Investment Apartment Communities II's combined historical summary of gross
income and direct operating expenses for the year ended December 31, 1997
included in AIMCO's Current Report on Form 8-K dated November 2, 1998, as set
forth in their reports, which are incorporated in this prospectus by reference.
These financial statements are incorporated by reference in reliance on their
reports, given on their authority as experts in accounting and auditing.
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
     AIMCO filed a Rule 13E-3 Transaction Statement (including any amendments
thereto, the "Schedule 13E-3") under the Exchange Act soon after with the filing
by AIMCO of a Registration Statement on Form S-4 (including any amendments
thereto, the "Registration Statement") under the Securities Act. This
Information Statement/ Prospectus forms a part of the Registration Statement and
does not contain all of the information set forth in the Registration Statement,
the Schedule 13E-3 or the exhibits to either of such documents.
 
     AIMCO and IPT file annual, quarterly and special reports, information
statements and other information with the SEC. You may read and copy any such
reports, statements or other information (including the Registration Statement
and the Schedule 13E-3) filed by AIMCO or IPT at the SEC's public reference
rooms in Washington, D.C., New York, New York and Chicago, Illinois. Please call
the SEC at 1-800-SEC-0330 for further information on the public reference rooms.
AIMCO and IPT's SEC filings are also available to the public from commercial
document retrieval services and at the web site maintained by the SEC at
"http://www.sec.gov."
 
     The SEC allows AIMCO to "incorporate by reference" information into this
Information Statement/Prospectus which means that AIMCO can disclose important
information to you by referring you to another document filed separately with
the SEC. The information incorporated by reference is considered to be part of
this Information Statement/Prospectus, and later information filed with SEC will
update and supersede the information in this Information Statement/Prospectus.
 
     AIMCO incorporates by reference each document it files pursuant to Sections
13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date of this
Information Statement/Prospectus and prior to the date of the Special Meeting.
AIMCO incorporates by reference herein the following documents filed by it with
the SEC (File No. 1-13232) pursuant to the Exchange Act:
 
- - Apartment Investment and Management Company's Annual Report on Form 10-K/A for
  the year ended December 31, 1997;
 
                                       250
<PAGE>   257
 
- - Apartment Investment and Management Company's Quarterly Reports on Form 10-Q/A
  or Form 10-Q for the quarters ended March 31, 1998, June 30, 1998 and
  September 30, 1998;
 
- - Apartment Investment and Management Company's Current Reports on Form 8-K,
  dated December 23, 1997 (and Amendment No. 1 thereto filed February 6, 1998
  and Amendment No. 2 thereto filed May 22, 1998), January 31, 1998, March 17,
  1998 (and Amendment No. 1 thereto filed April 3, 1998, Amendment No. 2 thereto
  filed June 22, 1998, Amendment No. 3 thereto filed July 2, 1998, Amendment No.
  4 thereto filed August 6, 1998, Amendment No. 5 thereto filed September 4,
  1998 and Amendment No. 6 thereto filed September 25, 1998), September 2, 1998,
  October 1, 1998, November 2, 1998 (and Amendment No. 1 thereto filed November
  24, 1998, Amendment No. 2 thereto filed December 7, 1998 and Amendment No. 3
  thereto filed December 14, 1998); and December 21, 1998; and
 
- - the description of Apartment Investment and Management Company's capital stock
  contained in its Registration Statement on Form 8-A (File No. 1-13232), filed
  July 19, 1994, including any amendment or reports filed for the purpose of
  updating such description.
 
     IPT has supplied all information contained in this Information
Statement/Prospectus relating to IPT, and AIMCO has supplied all information
contained, or incorporated by reference, in this Information
Statement/Prospectus relating to AIMCO.
 
     Documents incorporated by reference are available from AIMCO without
charge, excluding all exhibits, unless AIMCO has specifically incorporated by
reference an exhibit in this Information Statement/Prospectus. You may obtain
documents incorporated by reference in this Information Statement/Prospectus by
requesting them in writing or by telephone as follows:
 
     Apartment Investment and Management Company
     1873 South Bellaire Street, 17th Floor
     Denver, Colorado 80222
     Telephone: (303) 757-8101
     Attn: Corporate Secretary
 
     If you would like to request documents from us, please do so by January 15,
1999 in order to ensure timely receipt before the special meeting.
 
     You should rely only on the information contained or incorporated by
reference in this Information Statement/Prospectus with respect to the Merger.
We have not authorized anyone to provide you with information that is different
from what is contained, or incorporated by reference, in this Information
Statement/Prospectus. You should not assume that the information contained in
this Information Statement/Prospectus is accurate as of any date other than the
date hereof, and the mailing of this Information Statement/Prospectus to IPT
shareholders does not create any implication to the contrary.
 
                                       251
<PAGE>   258
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              -----
<S>                                                           <C>
INSIGNIA PROPERTIES TRUST:
Unaudited Condensed Consolidated Financial Statements:
  Condensed Consolidated Balance Sheets as of September 30,
     1998 and December 31, 1997.............................    F-2
  Condensed Consolidated Statements of Income for the Three
     Months Ended September 30, 1998 and 1997 and the Nine
     Months Ended September 30, 1998 and 1997...............    F-3
  Condensed Consolidated Statements of Shareholders'
     Equity.................................................    F-4
  Condensed Consolidated Statements of Cash Flow for the
     Nine Months Ended September 30, 1998 and 1997..........    F-5
  Notes to Condensed Consolidated Financial Statements......    F-6
INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES:
  Report of Ernst & Young LLP, Independent Auditors.........   F-17
  Consolidated Balance Sheets as of December 31, 1997 and
     1996...................................................   F-18
  Consolidated and Combined Statements of Income for the
     years ended December 31, 1997, 1996 and 1995...........   F-19
  Consolidated and Combined Statements of Shareholders'
     Equity and Insignia Equity in Predecessors.............   F-20
  Consolidated and Combined Statements of Cash Flows for the
     years ended December 31, 1997, 1996 and 1995...........   F-21
  Notes to Consolidated and Combined Financial Statements...   F-22
  Real Estate and Accumulated Depreciation Schedule.........   F-36
SHELTER PROPERTIES PARTNERSHIPS:
  Report of Ernst & Young LLP, Independent Auditors.........   F-38
  Combined Balance Sheets as of December 31, 1996 and
     1995...................................................   F-39
  Combined Statements of Operations for the years ended
     December 31, 1996, 1995 and 1994.......................   F-40
  Combined Statements of Changes in Partners' Capital.......   F-41
  Combined Statements of Cash Flows for years ended December
     31, 1996, 1995 and 1994................................   F-42
  Notes to Combined Financial Statements....................   F-43
  Real Estate and Accumulated Depreciation Schedule.........   F-49
NATIONAL PROPERTY INVESTORS AND CENTURY PROPERTIES
  PARTNERSHIPS:
  Report of Imowitz Koenig & Co. LLP, Independent
     Auditors...............................................   F-52
  Combined Balance Sheets as of December 31, 1996 and
     1995...................................................   F-53
  Combined Statements of Operations for the years ended
     December 31, 1996, 1995 and 1994.......................   F-54
  Combined Statements of Changes in Partners' Capital.......   F-55
  Combined Statements of Cash Flows for the years ended
     December 31, 1996, 1995 and 1994.......................   F-56
  Notes to Combined Financial Statements....................   F-58
  Real Estate and Accumulated Depreciation Schedule.........   F-66
ANGELES MORTGAGE INVESTMENT TRUST:
  Balance Sheets as of June 30, 1998 (unaudited) and
     December 31, 1997......................................   F-71
  Statements of Operations for the three months ended June
     30, 1998 and 1997 and the six months ended June 30,
     1998 and 1997 (unaudited)..............................   F-72
  Statements of Changes in Shareholders' Equity for the six
     months ended June 30, 1998 and 1997 (unaudited)........   F-73
  Statements of Cash Flows for the six months ended June 30,
     1998 and 1997 (unaudited)..............................   F-74
  Notes to Financial Statements (unaudited).................   F-75
  Report of BDO Seidman, LLP, Independent Certified Public
     Accountants............................................   F-76
  Balance Sheets as of December 31, 1997 and 1996...........   F-77
  Statements of Operations for the years ended December 31,
     1997, 1996 and 1995....................................   F-78
  Statements of Changes in Shareholders' Equity for the
     years ended December 31, 1997, 1996 and 1995...........   F-79
  Statements of Cash Flows for the years ended December 31,
     1997, 1996 and 1995....................................   F-80
  Notes to Financial Statements.............................   F-81
  Real Estate and Accumulated Depreciation Schedule.........   F-94
  Mortgage Loans on Real Estate Schedule....................   F-95
</TABLE>
 
                                       F-1
<PAGE>   259
 
                           INSIGNIA PROPERTIES TRUST
 
                     CONDENSED CONSOLIDATED BALANCE SHEETS
                       (IN THOUSANDS, EXCEPT SHARE DATA)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                              SEPTEMBER 30,    DECEMBER 31,
                                                                  1998             1997
                                                              -------------    ------------
                                                               (UNAUDITED)        (NOTE)
<S>                                                           <C>              <C>
Cash and cash equivalents...................................    $ 56,085         $ 37,432
Distributions receivable from real estate limited
  partnerships..............................................      11,135               --
Investments in real estate limited partnerships.............     183,072          159,469
Apartment property, net of depreciation.....................      44,488           22,357
Mortgage notes receivable...................................      20,916               --
Promissory notes receivable.................................         508               --
Other assets................................................       5,907            6,810
                                                                --------         --------
          Total assets......................................    $322,111         $226,068
                                                                ========         ========

                  LIABILITIES, MINORITY INTEREST AND SHAREHOLDERS' EQUITY
Liabilities:
  Accounts payable -- Due to IFG............................    $     94         $    841
  Distribution payable -- IFG...............................       1,590            1,260
  Distributions payable.....................................       3,751            2,786
  Accrued expenses..........................................       3,459            1,222
  Non-recourse mortgage notes payable.......................      29,002           19,300
  Note payable..............................................      30,000               --
                                                                --------         --------
          Total liabilities.................................      67,896           25,409
 
Minority interest in Operating Partnership..................      58,849           54,447
 
Shareholders' Equity:
  Common Shares -- authorized 400,000,000 shares, 23,446,538
     issued and outstanding (1998) and 18,573,151 issued and
     outstanding (1997).....................................         235              186
  Additional paid-in capital................................     198,025          145,594
  Unearned compensation.....................................      (4,974)              --
  Accumulated earnings in excess of distributions...........       2,080              432
                                                                --------         --------
          Total shareholders' equity........................     195,366          146,212
                                                                --------         --------
          Total liabilities, minority interest and
            shareholders' equity............................    $322,111         $226,068
                                                                ========         ========
</TABLE>
 
NOTE: The Balance Sheet at December 31, 1997 has been derived from the audited
      financial statements at that date but does not include all the information
      and footnotes required by generally accepted accounting principles for
      complete financial statements.
 
           See Notes to Condensed Consolidated Financial Statements.
 
                                       F-2
<PAGE>   260
 
                           INSIGNIA PROPERTIES TRUST
 
                  CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                            THREE MONTHS ENDED            NINE MONTHS ENDED
                                              SEPTEMBER 30,                 SEPTEMBER 30,
                                        --------------------------    --------------------------
                                           1998           1997           1998           1997
                                        -----------    -----------    -----------    -----------
<S>                                     <C>            <C>            <C>            <C>
Revenues
  Apartment rentals...................  $     1,997    $     1,712    $     5,624    $     4,941
  Equity earnings -- limited partner
     interest.........................        3,929          2,070         12,026          5,063
  Other...............................          689            647          1,942          1,140
                                        -----------    -----------    -----------    -----------
                                              6,615          4,429         19,592         11,144
                                        -----------    -----------    -----------    -----------
Costs and expenses
  Apartment property operating
     expenses.........................          849            819          2,585          2,336
  Apartment property interest.........          439            370          1,267          1,114
  Apartment property depreciation.....          304            245            904            725
  Administrative......................        1,188            368          1,763            921
  Amortization........................          111             96            387            148
  Other interest......................          226              5            432             47
                                        -----------    -----------    -----------    -----------
                                              3,117          1,903          7,338          5,291
                                        -----------    -----------    -----------    -----------
Operating income......................        3,498          2,526         12,254          5,853
Equity earnings -- gain on sale of
  properties..........................          116             --          5,888             --
                                        -----------    -----------    -----------    -----------
Income before minority interest and
  extraordinary item..................        3,614          2,526         18,142          5,853
Minority interest in consolidated
  Subsidiaries and the Operating
  Partnership.........................       (1,258)          (844)        (6,622)        (2,923)
                                        -----------    -----------    -----------    -----------
Income before extraordinary item......        2,356          1,682         11,520          2,930
Equity earnings -- extraordinary loss
  from property refinancings (net of
  minority interest)..................          (36)            --           (293)            --
                                        -----------    -----------    -----------    -----------
Net income............................  $     2,320    $     1,682    $    11,227    $     2,930
                                        ===========    ===========    ===========    ===========
Net income per share -- basic and
  diluted:
  Income before extraordinary item....  $      0.12    $      0.10    $      0.60    $      0.21
  Extraordinary item..................           --             --          (0.01)            --
                                        -----------    -----------    -----------    -----------
  Net income..........................  $      0.12    $      0.10    $      0.59    $      0.21
                                        ===========    ===========    ===========    ===========
  Distributions declared per Common
     Share............................  $      0.16    $        --    $      0.46    $        --
                                        ===========    ===========    ===========    ===========
  Weighted average Common Shares
     outstanding -- basic.............   19,529,313     17,212,270     19,080,809     13,449,712
                                        ===========    ===========    ===========    ===========
  Weighted average Common Shares
     outstanding -- diluted...........   19,606,172     17,212,270     19,157,668     13,449,712
                                        ===========    ===========    ===========    ===========
</TABLE>
 
           See Notes to Condensed Consolidated Financial Statements.
 
                                       F-3
<PAGE>   261
 
                           INSIGNIA PROPERTIES TRUST
 
           CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                       (IN THOUSANDS, EXCEPT SHARE DATA)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                             ACCUMULATED
                                                ADDITIONAL                    EARNINGS          TOTAL
                                       COMMON    PAID-IN       UNEARNED     IN EXCESS OF    SHAREHOLDERS'
                                       SHARES    CAPITAL     COMPENSATION   DISTRIBUTIONS      EQUITY
                                       ------   ----------   ------------   -------------   -------------
<S>                                    <C>      <C>          <C>            <C>             <C>
Balance at December 31, 1997.........   $186     $145,594      $    --         $   432        $146,212
  Issuance of 4,363,387 Common
     Shares..........................     44       46,666                                       46,710
  Issuance of 548,000 restricted
     Common Shares...................      5        5,765       (4,974)             --             796
  Distributions declared and paid....     --           --           --          (5,828)         (5,828)
  Distributions declared.............     --           --           --          (3,751)         (3,751)
  Net income for 1998................     --           --           --          11,227          11,227
                                        ----     --------      -------         -------        --------
Balance at September 30, 1998........   $235     $198,025      $(4,974)        $ 2,080        $195,366
                                        ====     ========      =======         =======        ========
</TABLE>
 
           See Notes to Condensed Consolidated Financial Statements.
 
                                       F-4
<PAGE>   262
 
                           INSIGNIA PROPERTIES TRUST
 
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW
                                 (IN THOUSANDS)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                              NINE MONTHS ENDED
                                                                SEPTEMBER 30,
                                                              ------------------
                                                                1998      1997
                                                              --------   -------
<S>                                                           <C>        <C>
Operating Activities
  Net income................................................  $ 11,227   $ 2,930
  Adjustments to reconcile net income to net cash provided
    by operations:
    Amortization of organization and formation costs........       387       148
    Amortization of loan costs..............................       268        --
    Apartment property depreciation.........................       904       725
    Equity earnings -- partnership investments..............   (12,026)   (5,063)
    Equity earnings -- gain on sale of properties...........    (5,888)       --
    Equity earnings -- extraordinary loss from property
     refinancings...........................................       293        --
    Non-cash compensation...................................       796        --
    Minority interests in the Operating Partnership and
     consolidated Subsidiaries..............................     6,622     2,923
    Changes in operating assets and liabilities:
      Other assets..........................................      (115)     (212)
      Accounts payable and accrued expenses.................        66      (224)
                                                              --------   -------
         Net cash provided by operating activities..........     2,534     1,227
                                                              --------   -------
Investing Activities
  Additions to apartment property...........................      (395)     (171)
  Organizational and formation costs........................        (5)   (1,737)
  Cash received in connection with AMIT Merger..............    13,423        --
  Purchase of real estate limited partnership interests.....   (29,292)   (2,171)
  Investment in apartment property, net of acquired cash....    (3,804)       --
  Funding of notes receivable...............................      (275)       --
  Distributions from partnerships...........................    18,656    12,219
  Merger costs..............................................    (1,402)   (1,011)
                                                              --------   -------
         Net cash (used in) provided by investing
          activities........................................    (3,094)    7,129
                                                              --------   -------
Financing Activities
  Proceeds from issuance of Common Shares...................        --    52,420
  Repayments of non-recourse mortgage notes.................       (16)       --
  Payments on note payable..................................        --    (1,080)
  Proceeds from note payable................................        --       650
  Borrowings on line of credit..............................    30,000        --
  Proceeds from refinancing of non-recourse mortgage note...     2,660        --
  Distributions made to minority investors of NPI 4.........      (494)   (1,420)
  Loan costs paid...........................................       (83)       --
  Distributions paid to IFG by Operating Partnership........    (4,240)   (4,077)
  Distributions paid to common shareholders.................    (8,614)   (5,880)
                                                              --------   -------
         Net cash provided by financing activities..........    19,213    40,613
                                                              --------   -------
Increase in cash and cash equivalents.......................    18,653    48,969
Cash and cash equivalents at beginning of period............    37,432     4,928
                                                              --------   -------
Cash and cash equivalents at end of period..................  $ 56,085   $53,897
                                                              ========   =======
Supplemental disclosure of non-cash financing and investing
  activities
  Issuance of Common Shares and Operating Partnership units
    in exchange for limited partner interests...............  $  6,656   $12,749
  Accrual of distributions to be received from investment
    real estate limited partnerships........................  $ 11,135        --
  Issuance of Common Shares in connection with the merger of
    AMIT*...................................................    43,081        --
  Application and reclassification of capitalized merger
    costs to the purchase price of AMIT.....................     3,573        --
</TABLE>
 
* In connection with the AMIT merger, IPT received approximately $13,423 in
  cash. Therefore, the net non-cash adjustment to the cash flow statement is
  approximately $29,658. See Note 4 to the Condensed Consolidated Financial
  Statements for a more complete discussion of the AMIT Merger.
 
             See Notes Condensed Consolidated Financial Statements.
 
                                       F-5
<PAGE>   263
 
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
1. ORGANIZATION AND BASIS OF PRESENTATION
 
     Insignia Properties Trust ("IPT" or the "Company") is a Maryland real
estate investment trust formed in 1996 by Insignia Financial Group, Inc., a
Delaware Corporation ("IFG"), for the purpose of acquiring and owning interests
in multifamily residential properties, including limited and general partner
interests in partnerships which hold such real estate properties. IPT has been
organized and is operated in a manner that allows it to be taxed as a real
estate investment trust ("REIT") under the Internal Revenue Code of 1986, as
amended. IPT is the sole general partner of Insignia Properties, L.P., a
Delaware limited partnership ("IPLP"), which is IPT's operating partnership. IFG
(now Apartment Investment and Management Company, a Maryland corporation
("AIMCO"), following the merger of IFG with and into AIMCO -- See Note 6 to the
Condensed Consolidated Financial Statements) is the designated special limited
partner of IPLP, and Insignia Capital Corporation (now a wholly-owned subsidiary
of AIMCO as a result of the merger of IFG with and into AIMCO) is the other
limited partner of IPLP. IPT Common Shares are listed on the American Stock
Exchange under the symbol "FFO."
 
     Substantially all of IPT's assets consist of (i) interests in entities
which comprise or control the managing general partners of real estate limited
partnerships (the "IPT Partnerships"), which interests are held by IPT directly
or through wholly-owned subsidiaries, (ii) limited partner interests in the IPT
Partnerships, which interests are held through IPLP, and (iii) the assets
acquired in the AMIT Merger (See Note 4 to the Condensed Consolidated Financial
Statements), including ten wholly-owned real estate assets, some of which are
held by IPT directly and some of which are held through IPLP. At September 30,
1998, the IPT Partnerships owned, in the aggregate, 339 properties containing
approximately 70,000 residential apartment units and approximately 5.9 million
square feet of commercial space. IPT's ownership share of these assets is
included in "Investments in real estate limited partnerships" on the Condensed
Consolidated Balance Sheet.
 
     The accompanying unaudited condensed consolidated financial statements have
been prepared in accordance with generally accepted accounting principles for
interim financial information and with the instructions to Form 10-Q and Article
10 of Treasury Regulation S-X. Accordingly, they do not include all of the
information and notes required by generally accepted accounting principles for
complete financial statements. In the opinion of management, all adjustments
(consisting of normal recurring accruals) considered necessary for a fair
presentation have been included. Operating results for the three and nine month
periods ended September 30, 1998 are not necessarily indicative of the results
that may be expected for the year ended December 31, 1998. For further
information, refer to the consolidated financial statements and notes thereto
included elsewhere herein this Registration Statement.
 
     Certain amounts from 1997 have been reclassified to conform with the 1998
presentation.
 
2. EARNINGS PER SHARE
 
     In 1997, the Financial Accounting Standard Board issued Statement No. 128,
Earnings per Share ("Statement No. 128"). Statement No. 128 replaced the
calculation of primary and fully diluted earnings per share with basic and
diluted earnings per share. Unlike primary earnings per share, basic earnings
per share excludes any dilutive effects of options, warrants and convertible
securities. Diluted earnings per share is very similar to the previously
reported fully diluted earnings per share.
 
                                       F-6
<PAGE>   264
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
     Earnings per share is computed based on the weighted average number of
outstanding common shares of beneficial interest of IPT, par value $.01 per
share ("IPT Common Shares"). An IPLP partnership interest is not considered
dilutive because the allocation of earnings to an IPLP partnership interest is
equivalent to a IPT Common Share.
 
<TABLE>
<CAPTION>
                                                      THREE MONTHS ENDED    NINE MONTHS ENDED
                                                        SEPTEMBER 30,         SEPTEMBER 30,
                                                      ------------------    ------------------
                                                       1998       1997       1998       1997
                                                      -------    -------    -------    -------
                                                       (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                   <C>        <C>        <C>        <C>
Numerator -- basic and diluted
  Income before extraordinary item..................  $ 2,356    $ 1,682    $11,520    $ 2,930
  Extraordinary loss................................      (36)        --       (293)        --
                                                      -------    -------    -------    -------
  Net income........................................  $ 2,320    $ 1,682    $11,227    $ 2,930
                                                      =======    =======    =======    =======
Denominator
  Denominator for basic earnings per
     share -- weighted average IPT Common Shares....   19,529     17,212     19,081     13,450
  Effect of dilutive securities -- Restricted shares
     and options....................................       77         --         77         --
                                                      -------    -------    -------    -------
  Denominator for diluted earnings per
     share -- Adjusted weighted average IPT Common
     Shares and assumed conversions.................   19,606     17,212     19,158     13,450
                                                      =======    =======    =======    =======
Earnings per IPT Common Share -- basic and diluted
  Income before extraordinary item..................  $  0.12    $  0.10    $  0.60    $  0.21
  Extraordinary loss................................       --         --       (.01)        --
                                                      -------    -------    -------    -------
  Net income........................................  $  0.12    $  0.10    $  0.59    $  0.21
                                                      =======    =======    =======    =======
</TABLE>
 
3. 1998 ACQUISITIONS
 
  Tender Offers
 
     In December 1997, a wholly-owned subsidiary of IPLP commenced tender offers
to purchase units of limited partner interest in the following IPT Partnerships:
Multi-Benefit Realty Fund '87-1, Century Properties Fund XIV, Century Properties
Fund XV, Century Properties Fund XVIII, Consolidated Capital Growth Fund,
Consolidated Capital Institutional Properties/3, Consolidated Capital Properties
V, Johnstown/Consolidated Income Partners and Shelter Properties VII. These
tender offers expired in January and February 1998, with IPLP acquiring
additional units of limited partner interest in these partnerships for a total
cost, including acquisition costs, of approximately $11.4 million.
 
     In April 1998, a wholly-owned subsidiary of IPLP commenced tender offers to
purchase units of limited partner interest in the following IPT Partnerships:
Angeles Income Properties, Ltd. II, Angeles Partners IX and Angeles Partners
XII. These tender offers expired in May 1998, with IPLP acquiring units of
limited partner interest in these partnerships for a total cost, including
acquisition costs, of approximately $6.6 million.
 
     As a result of the above tender offers, IPLP increased its stated ownership
interest in these partnerships by a range of 4.52% to 24.39%, with total stated
ownership interest in these partnerships ranging from 13.26% to 45.85% at
September 30, 1998. IPLP accounts for these partnership interests under the
equity method.
 
                                       F-7
<PAGE>   265
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
     During the third quarter 1998, a wholly-owned subsidiary of IPLP commenced
tender offers to purchase units of limited partner interest in the following IPT
Partnerships: Shelter Properties I, Shelter Properties II, Shelter Properties
IV, Shelter Properties V, Shelter Properties VI and Shelter Properties VII. The
tender offers for these partnerships expired in August 1998, with IPLP acquiring
additional units of limited partner interest in these partnerships for a total
cost, including acquisition costs, of approximately $7.5 million. As a result,
IPLP increased its stated ownership interest in these partnerships by a range of
5.19% to 8.36%, with total stated ownership interest in these partnerships
ranging from 23.07% to 46.96% as of September 30, 1998.
 
     During the third quarter of 1998, a wholly-owned subsidiary of IPLP
commenced tender offers to purchase units of limited partner interest in the
following IPT Partnerships: Consolidated Capital Institutional Properties,
Consolidated Capital Institutional Properties/2, Consolidated Capital
Institutional Properties/3, Consolidated Capital Properties III, Consolidated
Capital Properties V, Angeles Income Properties, Ltd. II, Angeles Income
Properties, Ltd. III, Angeles Income Properties, Ltd. IV, Angeles Income
Properties, Ltd. 6, Angeles Partners IX, Angeles Partners X, Angeles Partners
XI, Angeles Partners XII, Angeles Opportunity Properties, Ltd., Davidson
Diversified Real Estate I, LP, Davidson Diversified Real Estate II, LP, Davidson
Diversified Real Estate III, LP, Davidson Income Real Estate, LP and Davidson
Growth Plus, LP, Multi-Benefit Realty Fund 87-1 Class A and B, HCW Pension Real
Estate Fund Limited Partnership, Century Pension Income Fund XXIV, VMS Investors
First-Staged Equity LP II and Drexel Burnham Lambert Real Estate Associates III.
Each of these tenders is currently scheduled to expire on December 14, 1998.
 
  Property Acquisition
 
     On January 28, 1998, a 99% owned subsidiary of IPLP (IPT owns the other 1%
interest) acquired a 168-unit apartment complex located in Pensacola, Florida
known as Raintree Apartments, which is one of the real estate assets currently
directly wholly owned by IPLP. The aggregate purchase price paid for the
Raintree Apartments complex was approximately $3.8 million, approximately $2.7
million of which was debt financed on a non-recourse basis.
 
  MAE GP Corporation Merger and Related Transactions
 
     Effective February 25, 1998, MAE GP Corporation, which until then was a
wholly-owned subsidiary of Metropolitan Asset Enhancement, L.P. ("MAE"), was
merged with and into IPT (the "MAE GP Merger"). MAE was at the time an affiliate
of IPT and IFG. As consideration for the MAE GP Merger, IPT issued 344,609 IPT
Common Shares to MAE, valued for purposes of the MAE GP Merger at $10.53 per
share. MAE GP Corporation owned or controlled equity interests in entities which
comprised or controlled the general partners of 29 public and 61 private real
estate limited partnerships (collectively, the "MAE Partnerships"), which owned,
in the aggregate, 167 properties containing approximately 31,000 residential
apartment units and approximately 2.2 million square feet of commercial space.
 
     On February 17, 1998, IPLP purchased the following assets from MAE for
approximately $596,000 in cash: (i) a 99% limited partner interest in Insignia
Jacques Miller, L. P. ("IJM"), which in turn owned non-controlling equity
interests in entities that comprise or control the general partners of 30 of the
MAE Partnerships and various notes receivable (the 1% general partner interest
in IJM was acquired by IPT from MAE GP in the MAE GP Merger); and (ii) a 6.557%
limited partner
 
                                       F-8
<PAGE>   266
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
interest in Buccaneer Trace Limited Partnership, which owns a 208-unit
residential apartment complex located in Savannah, Georgia.
 
     On February 17, 1998, IFG contributed to IPLP all of the limited partner
interests in the MAE Partnerships owned by IFG and its wholly-owned subsidiaries
in exchange for additional limited partner interests in IPLP. The interests
contributed were valued at approximately $5,460,000, in exchange for which IPLP
issued to IFG 518,528 additional units of limited partner interest in IPLP
(based on a value of $10.53 per interest). The interests in the MAE Partnerships
were recorded at the historical cost of IFG.
 
4. ANGELES MORTGAGE INVESTMENT TRUST MERGER
 
     On September 17, 1998, AMIT, an unincorporated California business trust,
was merged with and into IPT. In the AMIT Merger, each issued and outstanding
Class A common share of AMIT was converted into 1.516 IPT Common Shares and each
issued and outstanding Class B common share of AMIT was converted into 0.0309
IPT Common Shares. IPT issued approximately 4,018,778 IPT Common Shares to the
AMIT shareholders in the AMIT Merger, including approximately 146,749 IPT Common
Shares issued to a wholly-owned subsidiary of IFG as a result of its ownership
of 96,800 Class A common shares of AMIT and approximately 51,826 IPT Common
Shares issued to MAE as a result of its ownership of 1,675,113 Class B common
shares of AMIT. In connection with the AMIT Merger, on September 16, 1998, IFG
purchased senior participation interests in certain loans of AMIT for an
aggregate purchase price of $11 million in cash. IPT acquired that cash in the
AMIT Merger, but has no interest in the senior participation interests sold to
IFG. On November 30, 1998, IPLP repurchased from AIMCO Operating Partnership the
participation in certain AMIT notes for $11 million. The AMIT Merger was
accounted for under the purchase method of accounting.
 
     Prior to the AMIT Merger, AMIT was in the business of making various types
of intermediate term real estate loans. At the date of the AMIT Merger, AMIT had
19 loans outstanding with an aggregate principal balance of approximately $21.1
million, and AMIT owned, as a result of foreclosures or receipt of deeds in lieu
of foreclosure on assets securing certain AMIT loans, approximately $14.4
million of real property, net of fair value adjustment of $1.5 million. IPT
acquired these assets as a result of the AMIT Merger, as well as approximately
$13.4 million of cash held by AMIT at the date of the AMIT Merger.
 
     Pro forma results of operations for the nine month periods ended September
30, 1998 and 1997, giving effect to the AMIT Merger as if effected at the
beginning of each period, are as follows (in thousands, except share and per
share data):
 
<TABLE>
<CAPTION>
                                                                1998          1997
                                                             -----------   -----------
<S>                                                          <C>           <C>
Revenues...................................................  $    25,488   $    15,226
  Income before extraordinary item.........................       16,693         6,052
  Net income...............................................       16,400         6,052
  Diluted earnings per IPT Common Share:
     Income before extraordinary item......................  $      0.73   $      0.35
     Net income............................................  $      0.72   $      0.35
  Weighed average IPT Common Shares
                                                             -----------   -----------
     diluted...............................................   22,899,721    17,468,270
</TABLE>
 
                                       F-9
<PAGE>   267
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
5. EQUITY EARNINGS -- GAIN ON SALE OF PROPERTIES
 
     On April 16, 1998, Consolidated Capital Institutional Properties ("CCIP"),
which is one of the IPT Partnerships, sold Northlake Quadrangle (one of the
properties controlled by CCIP) to an unrelated third party for $2.3 million.
CCIP's net proceeds from this sale were $2.1 million. At the time of the sale,
IPT owned approximately 41% of the equity interests in CCIP, and its share of
the gain (included in IPT's equity earnings) was approximately $291,000.
 
     On June 30, 1998, National Property Investors 5 ("NPI 5") and National
Property Investors 6 ("NPI 6"), each an IPT Partnership, sold the Village (an
apartment property jointly owned by NPI 5 and NPI 6) to an unrelated third party
for approximately $30.1 million. Aggregate net sales proceeds to NPI 5 and NPI 6
from this sale were approximately $18.1 million, after repayment of the mortgage
note and closing expenses. IPT owned approximately 48% and 44% of the equity
interests in NPI 5 and NPI 6, respectively, at the time of this sale, and its
share of the gain (included in IPT's equity earnings) was approximately $5.5
million.
 
     On July 16, 1998, Angeles Income Properties, Ltd. 6 ("AIPL6"), which is one
of the IPT Partnerships, sold Whispering Pines Mobile Home Park (one of the
properties controlled by AIPL6) to an unrelated third party for approximately
$7.0 million. Aggregate net sales proceeds to AIPL6 from this sale were
approximately $1.9 million, after repayment of the first and second mortgage
notes and payment of closing costs. IPT owned approximately 5% of the equity
interests in AIPL6 at the time of the sale, and its share of the gain (included
in IPT's equity earnings) was approximately $97,000.
 
6. APARTMENT INVESTMENT AND MANAGEMENT COMPANY MERGER
 
     On March 17, 1998, IFG entered into an agreement to merge its national
residential property management operations, including its controlling interest
in IPT, with AIMCO. On October 1, 1998, AIMCO completed the merger of IFG with
and into AIMCO (the "IFG Merger"). As a result of the IFG Merger, AIMCO acquired
approximately 51% of the outstanding Common Shares of IPT.
 
     Also on October 1, 1998, just prior to the completion of the IFG Merger,
the IPT Board of Trustees, as constituted prior to the resignations and
appointments of AIMCO nominees described below (the "IPT Board"), held a special
meeting attended by all but one trustee to consider in detail with its legal and
financial advisors the terms of an Agreement and Plan of Merger (the "Original
Merger Agreement") proposed to be entered into between IPT and AIMCO, pursuant
to which IPT would be merged with and into AIMCO or a subsidiary of AIMCO (the
"Merger"). At the request of the IPT Board, representatives of Lehman Brothers,
Inc., IPT's financial advisor, made a presentation concerning the analysis
underlying their conclusions, and delivered a written opinion that the
consideration to be paid in the Merger was fair from a financial point of view
to the holders of IPT Common Shares, other than AIMCO and its subsidiaries.
Following such discussions and based in part on the advice of Lehman Brothers,
Inc., the IPT Board (prior to the election of any AIMCO affiliates) unanimously
(1) deemed the Merger advisable and in the best interests of IPT, (2) directed
the Merger to be submitted to the IPT shareholders, (3) recommended the Merger
to the IPT shareholders, and (4) approved the Original Merger Agreement and the
transactions contemplated by the IPT Merger Agreement.
 
     As contemplated by the Original Merger Agreement, effective simultaneously
with the execution and delivery of the Original Merger Agreement, (1) Messrs.
Ronald Uretta and Ronald J. Consiglio
 
                                      F-10
<PAGE>   268
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
resigned as trustees of IPT; (2) the size of the IPT Board was increased by four
from seven to eleven members; and (3) Messrs. Terry Considine, Peter K.
Kompaniez, Patrick J. Foye, Steven D. Ira, Thomas W. Toomey and Harry G. Alcock,
each of whom is an officer of AIMCO, were appointed to fill the vacancies on the
IPT Board.
 
     IPT's bylaws were also amended in the manner contemplated by the Original
Merger Agreement. One of the bylaw amendments had the effect of exempting
AIMCO's acquisition (through the IFG Merger) of IPT Common Shares from
Maryland's control share acquisition statute. Maryland's control share
acquisition statute generally provides that persons acquiring more than 20% of
the outstanding shares of a Maryland real estate investment trust will have no
voting rights unless the acquisition is approved by (1) the affirmative vote of
66 2/3% of all the votes entitled to be cast on the matter, excluding all
interested shares, or (2) by a bylaw provision, as was the case in AIMCO's
acquisition of the IPT Common Shares formerly held by IFG through the IFG
Merger. As a result of such bylaw amendment, AIMCO will be permitted to vote the
IPT Common Shares it owns for the Merger.
 
     In addition, another Maryland statute, the business combination statute,
prohibits certain business combinations between a Maryland real estate
investment trust and a 10% shareholder and certain other persons. AIMCO was
exempted from the provisions of Maryland's business combination statute by the
IPT Board prior to AIMCO's acquisition of the IPT Common Shares formerly owned
by IFG, therefore the Merger is not restricted by Maryland's business
combination statute.
 
     The Merger requires approval of the holders of a majority of the
outstanding IPT Common Shares. AIMCO and its subsidiaries have agreed to cause
all of the IPT Common Shares they own to be voted in favor of the Merger and the
Original Merger Agreement, as amended. Accordingly, IPT shareholder approval is
assured.
 
     On December 7, 1998, the merger agreement was amended and restated (such
amended and restated agreement, the "Merger Agreement") to clarify certain
ambiguities and inconsistencies in the Original Merger Agreement and to change
the structure of the merger to the merger of a subsidiary of AIMCO with and into
IPT from the merger of IPT with and into AIMCO.
 
     Upon completion of the Merger, IPT shareholders will receive the following
merger consideration: (1) if the Merger is completed prior to March 1, 1999,
$13.28 per IPT Share in shares of AIMCO Common Stock, or, at AIMCO's election,
$13.25 ($13.28 to the extent that AIMCO uses its common stock) per IPT Common
Share in cash or AIMCO common stock, subject to certain adjustments specified in
the Merger Agreement; or (2) if the Merger is completed on or after March 1,
1999, $13.28 per IPT Common Share payable entirely in shares of AIMCO common
stock, subject to certain adjustments specified in the Merger Agreement. IPT
will issue a press release announcing whether AIMCO elects to pay the merger
consideration in cash at least 12-trading days before completion of the Merger.
Based on an assumed price per IPT Common Share of $13.25, using 23,446,538 fully
diluted IPT Common Shares as of October 1, 1998, the aggregate value of all
outstanding IPT Common Shares implied by the Original Merger Agreement would
have been approximately $310.7 million.
 
     Also in connection with the execution of the Original Merger Agreement, IPT
entered into consulting agreements with each of Messrs. James A. Aston, Andrew
L. Farkas, Frank M. Garrison and Ronald Uretta, each of whom was a member of the
IPT Board at the time the Original Merger Agreement was approved, pursuant to
which these individuals have become consultants to IPT for a
 
                                      F-11
<PAGE>   269
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
fee of $1,000 per month. These consulting agreements will terminate on January
31, 2003. Additionally, all unvested restricted IPT Common Shares owned by these
individuals at the effective time of the Merger will be converted into
restricted shares of AIMCO Common Stock, regardless of whether AIMCO elects to
pay the merger consideration in cash. As of September 30, 1998, such individuals
held approximately 390,000 restricted IPT Common Shares.
 
     As compensation for its services in connection with the Merger and the
rendering of its fairness opinion, IPT paid Lehman Brothers a fee of $750,000
plus expenses. This amount is reflected in administrative expenses for the three
and nine months ended September 30, 1998. Lehman Brothers currently is a lender
to IPT under a $50 million credit facility. At the time Lehman Brothers rendered
its opinion to IPT, Lehman Brothers and an officer of Lehman Brothers owned an
aggregate of 510,000 IPT Common Shares.
 
7. MORTGAGE NOTE RECEIVABLE
 
     In September 1998, IPT funded a new loan in the amount of $275,000 secured
by a first deed of trust on a 6,000 square foot commercial building located in
Indianapolis, Indiana. This new loan requires monthly principal and interest
payments based on an annual interest rate of 7.3% and a principal amortization
period of 20 years. The loan has a maturity date of September 2008.
 
8. COMMITMENTS AND CONTINGENCIES
 
  General Partners
 
     Qualified REIT subsidiaries of IPT either control or serve as managing
general partner of the IPT Partnerships, and these subsidiaries may be liable
for recourse obligations of the IPT Partnerships in the event that the IPT
Partnerships are unable to satisfy those obligations. IPT believes that each IPT
Partnership has more than adequate resources to discharge all recourse
obligations and maintains adequate insurance.
 
  Loan Commitments
 
     Certain wholly-owned subsidiaries of IPT are obligated to loan up to
$500,000 each to certain IPT Partnerships ($2,600,000 in aggregate) and $150,000
each to certain other IPT Partnerships ($6,000,000 in aggregate) at interest
rates not to exceed the prime rate plus 2%. There were no amounts outstanding
under these commitments at September 30, 1998.
 
  Obligations to Former General Partners
 
     Certain corporate general partners owned by IPT were acquired by IFG from
unaffiliated prior owners. The acquisition agreements provided that IFG (now
IPT) would be indemnified from claims attributable to events or actions prior to
IFG's ownership, and that IFG would indemnify the prior owners from claims or
causes of action arising after the change in ownership. In addition, certain
former owners of the general partners of seven IPT Partnerships retained 100%
(and in some instances 75%) of the obligation to make capital contributions that
may be required by the general partners upon windup of the applicable
partnerships.
 
                                      F-12
<PAGE>   270
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
  Environmental Liabilities
 
     Under various Federal and state environmental laws and regulations, a
current or previous owner or operator of real estate may be required to
investigate and clean up certain hazardous or toxic substances or petroleum
product releases at the property, and may be held liable to a governmental
entity or to third parties for property damage and for investigation and cleanup
costs incurred by such parties in connection with contamination. In addition,
some environmental laws create a lien on the contaminated site in favor of the
government for damages and costs it incurs in connection with the contamination.
The owner or operator of a site may be liable under common law to third parties
for damages and injuries resulting from environmental contamination emanating
from the site. There can be no assurance that IPT, any of its affiliates or any
assets owned or controlled by IPT or any of its affiliates currently are in
compliance with all of such laws and regulations, or that IPT or its affiliates
will not become subject to liabilities that arise in whole or in part out of any
such laws, rules or regulations. Management is not currently aware of any
environmental liabilities that are expected to have a material adverse effect on
the Company's operations or financial condition.
 
  Litigation
 
     In January and February 1998, a limited partner in several of the IPT
Partnerships commenced arbitration proceedings and litigation against those
partnerships and their general partners. The claims in both arbitration and in
complaints filed in the Circuit Court of Jackson County, Missouri assert that
the general partners controlled by IPT breached certain contractual and
fiduciary duties allegedly owed to the claimant. IPT believes the claims
asserted in these proceedings are without merit.
 
     On March 24, 1998, certain persons claiming to own limited partner
interests in certain of the IPT Partnerships filed a purported class and
derivative action in California Superior Court in the County of San Mateo
against IPT, the general partners of the partnerships, certain persons and
entities who purportedly formerly controlled the general partners, and
additional entities affiliated with and individuals who are officers, directors
and/or principals of several of the defendants. The complaint contains
allegations that, among other things, (i) the defendants breached their
fiduciary duties to the plaintiffs by selling or agreeing to sell their
"fiduciary positions" as stockholders, officers and directors of the general
partners for a profit and retaining said profit rather than distributing it to
the plaintiffs; (ii) the defendants breached their fiduciary duties by
mismanaging the partnerships and misappropriating the assets of the partnerships
by (a) manipulating the operations of the partnerships to depress the trading
price of units of limited partner interest in the partnerships, (b) coercing and
fraudulently inducing unitholders to sell units to certain of the defendants at
depressed prices and (c) using the voting control obtained by purchasing units
at depressed prices to entrench certain of the defendants' positions of control
over the partnerships; and (iii) the defendants breached their fiduciary duties
to the plaintiffs by selling assets (such as mailing lists of unitholders) of
the partnerships and causing the general partners to enter into exclusive
arrangements with their affiliates to sell goods and services to the general
partners, the unitholders and tenants of partnership properties. The complaint
also alleges that the foregoing allegations constitute violations of various
California securities, corporate and partnership statutes, as well as conversion
and common law fraud. The complaint seeks unspecified compensatory and punitive
damages, an injunction blocking the sale of control of the general partners and
a court order directing the defendants to discharge their fiduciary duties to
the plaintiffs. In June 1998, the general partners filed a motion seeking
dismissal of the action. In lieu of responding to that motion, the plaintiffs
recently filed an amended complaint
 
                                      F-13
<PAGE>   271
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
against which the general partners have again filed a motion seeking dismissal.
IPT believes that the allegations contained in the amended complaint are without
merit and intends to defend the action vigorously.
 
     On July 30, 1998, certain entities claiming to own limited partner
interests in 44 of the IPT Partnerships filed a complaint in the Superior Court
of the State of California, County of Los Angeles against IPT, IFG, the
applicable IPT Partnerships, the general partners of those partnerships and
additional entities affiliated with several of the defendants. Plaintiffs allege
that they have requested from, but have been denied by each of the partnerships,
lists of their respective limited partners for the purpose of making tender
offers to purchase up to 4.9% of the units of limited partner interest in each
of those partnerships. The complaint also alleges that certain of the defendants
made tender offers to purchase units of limited partner interest in many of the
partnerships, with the alleged result that plaintiffs have been deprived of the
benefits they would have realized from ownership of the additional units. The
plaintiffs assert eleven causes of action, including breach of contract, unfair
business practices and violations of the partnership statutes of the states in
which the partnerships are organized. Plaintiffs seek compensatory, punitive and
treble damages. Defendants have answered the complaint. IPT believes the claims
are without merit and intends to defend the action vigorously.
 
     An action was filed against AMIT, Katten Muchin Zavis and David M. Bass in
Superior Court of the State of California by Jules P. Kirsch on December 26,
1996 alleging that the named defendants had maliciously prosecuted Mr. Kirsch in
certain earlier litigation commenced by AMIT in 1995, which alleged that Mr.
Kirsch and several other individuals and corporations purchased AMIT Class A
Shares while in possession of "inside information" and that they violated
Sections 13(d) and 14(a) of the Exchange Act and the rules and regulations
promulgated thereunder. In June 1996, AMIT settled the prior claims with the
defendants other than Mr. Kirsch, and voluntarily dismissed the claims against
Mr. Kirsch. The now pending action commenced by Mr. Kirsch seeks unspecified
amounts for compensatory and punitive damages. On January 5, 1998, summary
judgment was entered in favor of AMIT and against Mr. Kirsch on all claims in
the malicious prosecution action. On January 30, 1998, Mr. Kirsch filed an
appeal of the summary judgment ruling. No decision on that appeal has been
rendered yet.
 
     In addition to the above, certain of the IPT Partnerships and other
subsidiaries of IPT are defendants in lawsuits arising in the ordinary course of
business. Such lawsuits are primarily insured claims arising from accidents at
managed properties. Claims may demand substantial compensatory and punitive
damages. Management believes that the litigation will be resolved without a
material impact on the financial position or results of operations of the IPT.
 
9. OTHER MATTERS
 
  Winthrop Option
 
     On February 17, 1998, IFG (now AIMCO) granted IPLP an option (the "Winthrop
Option") to acquire, at any time on or before December 31, 1998, all of IFG's
interest in certain limited partner interests in two public and 11 private real
estate limited partnerships which own, in the aggregate, 29 properties
containing approximately 12,100 residential apartment units, together with the
right to receive certain asset management, investor services and partnership
management fees from ten of those partnerships. IFG acquired such interests from
Winthrop Financial Associates and certain affiliates of Winthrop Financial
Associates. The Winthrop Option is exercisable by IPLP for
                                      F-14
<PAGE>   272
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
an aggregate cash amount of approximately $46 million, plus interest on
approximately $40 million of that amount at a rate equal to IFG's cost of funds
(based on the interest rate in effect from time to time under IFG's revolving
credit facility) and a ratable portion of the transaction costs incurred by IFG
in connection with the acquisitions of those interests.
 
  Cost of Start-up Activities
 
     In 1998, the Accounting Standards Executive Committee issued Statement of
Position 98-5, Reporting on the Costs of Start-Up Activities ("SOP 98-5"), which
is effective for financial statements for fiscal years beginning after December
15, 1998. SOP 98-5 requires costs of start-up activities and organization costs
to be expensed as incurred. Initial application should be reported as the
cumulative effect of a change in accounting principle and expensed in the first
quarter in the year of adoption. At September 30, 1998, IPT had approximately
$920,000 (net of accumulated amortization) capitalized as organizational costs
that would be affected by the requirements of SOP 98-5.
 
  EITF 97-11
 
     IPT has not capitalized any internal costs in connection with identifying
and acquiring operating properties. Therefore, EITF 97-11 will have no effect on
IPT's financial statements.
 
  Comprehensive Income
 
     In 1997, the Financial Accounting Standards Board issued Statement No. 130,
Reporting Comprehensive Income ("Statement No. 130"). Statement No. 130
establishes new rules for the reporting and display of comprehensive income and
its components. IPT adopted Statement No. 130 as of January 1, 1998. Statement
No. 130 had no effect on IPT as of September 30, 1998.
 
10. SUBSEQUENT EVENTS
 
  IPLP Transfer
 
     On December 7, 1998, IPLP entered into (the IPLP Assignment Agreement) with
the AIMCO Operating Partnership. Pursuant to the IPLP Assignment Agreement, IPLP
transferred the economic rights to the Assets to the AIMCO Operating Partnership
in exchange for approximately 10.2 million OP Units.
 
  Realty Transaction
 
     In June 1998, the AIMCO Operating Partnership entered into seven separate
Purchase and Sale Agreements with affiliates of Realty Investment Co. to acquire
seven multifamily residential properties. On October 16, 1998, these properties
were acquired by newly formed subsidiaries of the AIMCO Operating Partnership
(the "Subsidiary Partnerships") for a purchase price of approximately $41.8
million (exclusive of certain transaction costs), consisting of approximately
$16.8 million in cash and the assumption of approximately $25.0 million in
mortgage indebtedness. IPLP provided approximately $17.1 million to the AIMCO
Operating Partnership for the acquisition of certain multifamily residential
properties. As consideration, the AIMCO Operating Partnership assigned all of
its rights, title and interest in and to the profits, distributions, losses, and
all other economic rights and obligations arising out of the it's limited
partnership interest in the Subsidiary Partnerships to
 
                                      F-15
<PAGE>   273
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)
 
IPLP. The seven garden-style apartment communities are located in three states,
have an average age of 14 years and contain 1,353 apartment units. Five of the
apartment communities are located in Florida, with 448 units in Jacksonville,
208 units in Daytona Beach, 120 units in Melbourne and 216 units in Palm Bay.
One apartment community with 137 units is located in Hemet, California and one
apartment community with 224 units is located in Stone Mountain, Georgia.
 
  AMIT Notes Repurchase
 
     On November 30, 1998, IPLP repurchased participations in certain AMIT notes
for $11 million.
 
  Retention Compensation Arrangements
 
     During October 1998, approximately $1.4 million was paid to former
executives and other employees of IPT related to retention arrangements entered
into with these employees. The retention agreements were entered into in order
to encourage the executives and other employees to remain with IPT through the
close of the Merger. As a result of the change in control of IPT, it was
determined that the compensation would be awarded to these employees on October
15, 1998. Also on October 15, 1998, pursuant to the respective retention
agreements, 26,000 restricted IPT Common Shares previously granted to certain
former IPT executives vested, and options to purchase 25,000 IPT Common Shares
held by two former IPT executives were retired by IPT at an aggregate cost of
$81,250. In October 1998, $1 million was paid to Ronald Consiglio, a former
officer and trustee of AMIT and IPT, as a result of the termination of his
employment with IPT without cause. These amounts will be recorded as expense by
IPT in the fourth quarter of 1998.
 
  Property Sale
 
     During November 1998, IPT sold an industrial warehouse acquired in
connection with the AMIT Merger. The warehouse, which is approximately 89,000
square feet and is located in Solon, a suburb of Cleveland, Ohio, was sold for a
price of $2,000,000. In connection with the sale, IPT provided a first mortgage
loan to the buyer in the amount of $1,700,000, which requires monthly principal
and interest payments based on an annual interest rate of 6.25% and a principal
amortization period of 20 years. The loan has a maturity date of November 2008.
In conjunction with the sale of the property, IPT recognized a gain of
approximately $205,000 and received net cash proceeds in the amount of
approximately $201,000.
 
                                      F-16
<PAGE>   274
 
               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
Shareholders and Board of Trustees
Insignia Properties Trust and Predecessor Entities
 
     We have audited the accompanying consolidated balance sheets of Insignia
Properties Trust (a majority-owned subsidiary of Insignia Financial Group, Inc.)
as of December 31, 1997 and 1996, and the related consolidated statement of
income, shareholders' equity and cash flows for the year ended December 31,
1997, and the combined statements of income, shareholders' equity and cash flows
for each of the two years in the period ended December 31, 1996 of the Insignia
Properties Trust Predecessor Entities. Our audits also included the financial
statement schedule included on pages F-36 to F-37. These financial statements
and the financial statement schedule are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements and the financial statement schedule 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 consolidated financial position of Insignia
Properties Trust at December 31, 1997 and 1996, and the consolidated results of
its operations and its cash flows for the year ended December 31, 1997, and the
combined results of the operations and the cash flows of the Insignia Properties
Trust Predecessor Entities for each of the two years in the period ended
December 31, 1996, in conformity with generally accepted accounting principles.
Also, in our opinion, the related financial statement schedule, when considered
in relation to the basic financial statements taken as a whole, present fairly
in all material respects the information set forth therein.
 
                                          /s/ ERNST & YOUNG LLP
 
February 13, 1998,
except for Note 10, as to which the date is
March 17, 1998
 
                                      F-17
<PAGE>   275
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
                          CONSOLIDATED BALANCE SHEETS
                   (DOLLARS IN THOUSANDS, EXCEPT SHARE DATA)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  DECEMBER 31,
                                                              --------------------
                                                                1997        1996
                                                              --------    --------
<S>                                                           <C>         <C>
Cash and cash equivalents...................................  $ 37,432    $  4,928
Receivables.................................................         8          21
Investments in real estate limited partnerships.............   159,469     118,741
Apartment property, net.....................................    22,357      22,125
Other assets................................................     6,802       1,942
                                                              --------    --------
          Total assets......................................  $226,068    $147,757
                                                              ========    ========
                       LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
  Accounts payable -- Due to Insignia.......................  $    841    $    275
  Distribution payable -- Insignia..........................     1,260          --
  Distributions payable.....................................     2,786       5,880
  Accrued expenses..........................................     1,222         804
  Note payable..............................................        --         430
  Non-recourse mortgage note................................    19,300      19,300
                                                              --------    --------
          Total liabilities.................................    25,409      26,689
Minority interests in Operating Partnership.................    54,447      50,429
Shareholders' equity:
  Preferred shares, par value $.01 per share -- authorized
     100,000,000 shares, issued and outstanding -0- (1997
     and 1996)..............................................        --          --
  Common shares, par value $.01 per share -- authorized
     400,000,000 shares, issued and outstanding 18,573,151
     (1997) and 11,168,036 (1996)...........................       186         112
  Additional paid-in capital................................   145,594      70,527
  Accumulated earnings in excess of distributions...........       432          --
                                                              --------    --------
          Total shareholders' equity........................   146,212      70,639
                                                              --------    --------
          Total liabilities and shareholders' equity........  $226,068    $147,757
                                                              ========    ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-18
<PAGE>   276
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
                 CONSOLIDATED AND COMBINED STATEMENTS OF INCOME
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                              --------------------------------
                                                                 1997         1996       1995
                                                              -----------    -------    ------
<S>                                                           <C>            <C>        <C>
Revenues
  Apartment rentals.........................................  $     6,646    $ 6,020    $   --
  Equity earnings -- limited partnership interests..........        8,062      3,587     2,455
  Other.....................................................        2,118         98         4
                                                              -----------    -------    ------
                                                                   16,826      9,705     2,459
Expenses
  Apartment property operating expenses.....................        3,258      3,034        --
  Apartment property interest...............................        1,486      1,812        --
  Apartment property depreciation...........................          966        901        --
  Administrative............................................        1,314         34       113
  Amortization..............................................          285         --        --
  Other interest............................................           47         11        --
                                                              -----------    -------    ------
                                                                    7,356      5,792       113
                                                              -----------    -------    ------
Income before gain on sale of properties, minority interest
  and extraordinary items...................................        9,470      3,913     2,346
Gain of sale of properties..................................        1,044         --        --
                                                              -----------    -------    ------
Income before minority interest and extraordinary items.....       10,514      3,913     2,346
Minority interests in consolidated subsidiaries and the
  Operating Partnership.....................................       (4,440)      (356)     (131)
                                                              -----------    -------    ------
Income before extraordinary item............................        6,074      3,557     2,215
Extraordinary loss -- property refinancings (net of minority
  interest).................................................          (70)    (1,132)       --
                                                              -----------    -------    ------
Net income..................................................  $     6,004    $ 2,425    $2,215
                                                              ===========    =======    ======
Net Income per share:
  Income before extraordinary item..........................  $       .41         --        --
  Extraordinary item........................................         (.01)        --        --
                                                              -----------    -------    ------
  Net income................................................  $       .40         --        --
                                                              ===========    =======    ======
Weighted average shares outstanding.........................   14,694,327         --        --
                                                              ===========    =======    ======
</TABLE>
 
                            See accompanying notes.
 
                                      F-19
<PAGE>   277
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
             CONSOLIDATED AND COMBINED STATEMENTS OF SHAREHOLDERS'
                   EQUITY AND INSIGNIA EQUITY IN PREDECESSORS
                   (DOLLARS IN THOUSANDS, EXCEPT SHARE DATA)
 
<TABLE>
<CAPTION>
                                            COMMON     ADDITIONAL       ACCUMULATED          INSIGNIA
                                             STOCK      PAID-IN      EARNINGS IN EXCESS     EQUITY IN
                                            CLASS A     CAPITAL       OF DISTRIBUTIONS     PREDECESSORS
                                            -------    ----------    ------------------    ------------
<S>                                         <C>        <C>           <C>                   <C>
Balance at December 31, 1994..............   $ --       $     --           $   --            $ 38,346
  Capital contribution by Insignia........     --             --               --              21,522
  Distributions paid......................     --             --               --             (10,209)
  Net income for 1995.....................     --             --               --               2,215
                                             ----       --------           ------            --------
Balance at December 31, 1995..............     --             --               --              51,874
  Issuance of 11,168,036 common shares....    112         78,587               --                  --
  Capital contribution by Insignia........     --             --               --               2,942
  Distributions declared and paid.........     --         (2,180)              --              (6,812)
  Distributions declared..................     --         (5,880)              --                  --
  Net income for 1996.....................     --             --               --               2,425
  Issuance of IPLP units in exchange for
     Insignia limited partnership
     interests -- transferred to minority
     interest.............................     --             --               --             (50,429)
                                             ----       --------           ------            --------
Balance at December 31, 1996..............    112         70,527               --                  --
  Issuance of 7,405,115 common shares.....     74         75,067               --                  --
  Distributions declared and paid.........     --             --           (2,786)                 --
  Distributions declared..................     --             --           (2,786)                 --
  Net income for 1997.....................     --             --            6,004                  --
                                             ----       --------           ------            --------
Balance at December 31, 1997..............   $186       $145,594           $  432            $     --
                                             ====       ========           ======            ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-20
<PAGE>   278
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
               CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                                                              ------------------------------
                                                                1997       1996       1995
                                                              --------   --------   --------
<S>                                                           <C>        <C>        <C>
Operating activities
  Net income................................................  $  6,004   $  2,425   $  2,215
  Adjustments to reconcile net income to net cash provided
     by (used in) operating activities:
     Apartment property depreciation........................       966        901         --
     Amortization of organization and formation costs.......       285         --         --
     Equity earnings -- partnership investments.............    (8,062)    (3,587)    (2,455)
     Gain on sale of properties.............................    (1,044)        --         --
     Extraordinary loss -- property refinancings............        70      1,132         --
     Minority interests in the Operating Partnership and
       consolidated subsidiaries............................     4,440        356        131
     Changes in operating assets and liabilities:
       Accounts receivable..................................        13        (21)        --
       Other assets.........................................    (1,316)         6         --
       Accounts payable and accrued expenses................       982        208          9
                                                              --------   --------   --------
          Net cash provided by (used in) operating
            activities......................................     2,338      1,420       (100)
Investing activities
  Purchase of partnership interests.........................   (30,592)   (71,427)   (24,147)
  Investment in apartment property, net of acquired cash....        --     (8,005)        --
  Distributions from partnerships...........................    18,235      9,258     10,910
  Organizational and formation costs........................    (3,743)        --         --
  Additions to apartment property...........................      (381)      (733)        --
  Other.....................................................        --         73         --
                                                              --------   --------   --------
          Net cash (used in) investing activities...........   (16,481)   (70,834)   (13,237)
Financing activities
  Payments on note payable..................................    (1,080)      (310)        --
  Repayments of non-recourse mortgage note..................        --    (16,876)        --
  Proceeds from note payable................................       650         --         --
  Proceeds from refinancing of non-recourse mortgage note...        --     19,300         --
  Investments made by minority investors....................        --         --      2,652
  Distributions made to minority investors..................    (1,321)      (431)      (100)
  Debt issuance costs.......................................        --       (505)        --
  Debt extinguishment costs.................................        --       (333)        --
  Capital invested by Insignia..............................        --     81,961     21,522
  Loan costs paid...........................................       (19)        --         --
  Distributions paid to Insignia by IPLP....................    (5,337)    (6,812)   (10,209)
  Distributions paid to common shareholders.................    (8,666)    (2,180)        --
  Proceeds from issuance of common shares...................    62,420         --         --
                                                              --------   --------   --------
  Net cash provided by financing activities.................    46,647     73,814     13,865
                                                              --------   --------   --------
  Increase in cash and cash equivalents.....................    32,504      4,400        528
  Cash and cash equivalents at beginning of year............     4,928        528         --
                                                              --------   --------   --------
  Cash and cash equivalents at end of year..................  $ 37,432   $  4,928   $    528
                                                              ========   ========   ========
Supplemental disclosure of non-cash financing and investing
  activities
  Issuance of IPT shares and OP units for partnership
     interests..............................................  $ 20,379   $     --   $     --
                                                              ========   ========   ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-21
<PAGE>   279
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                               DECEMBER 31, 1997
 
1. ORGANIZATION AND BASIS OF PRESENTATION
 
     Insignia Properties Trust ("IPT" or "the Company") was formed in 1996 by
Insignia Financial Group, Inc. ("Insignia") for the purpose of acquiring and
owning interests in multifamily residential properties, including limited and
general partner interests in partnerships which hold such real estate
properties. IPT has been organized in a manner that will allow it to be taxed as
a real estate investment trust ("REIT") under the Internal Revenue Code of 1986
beginning with the taxable year ended December 31, 1996. IPT was organized as a
Maryland Business Trust. Insignia and its affiliates have transferred to IPT
equity interests in entities comprising or controlling the general partners of
certain public real estate limited partnerships in exchange for shares of
beneficial interest of IPT. IPT has also issued common shares to Insignia and
certain of its employees and affiliates in exchange for the payment of certain
obligations of IPT. IPT began operations on December 31, 1996 as a result of
such transfers. The transfers were recorded at the historical cost of Insignia.
 
     The Company is the sole general partner of Insignia Properties L.P. ("IPLP"
or the "Operating Partnership"). Insignia and its subsidiaries, other than IPT,
have transferred to IPLP certain limited partner interests in real estate
limited partnerships (or equity interests in entities which own such interests)
owned by Insignia and its subsidiaries in exchange for units of limited partner
interest in IPLP, which units are exchangeable for common shares of IPT or are
redeemable for cash. Because these units are held by Insignia, under the Limited
Partnership Agreement, they are Class A units of limited partner interest having
special rights with respect to matters concerning IPLP. As a result of these
formation transactions, at December 31, 1997 and 1996, IPT was 75% and 98% owned
by Insignia, with the remainder of its shares owned by Metropolitan Asset
Enhancement L.P. ("MAE LP") (an affiliated company), certain Insignia employees
and other non-affiliated investors. IPT's ownership of IPLP was 66% and 57% at
December 31, 1997 and 1996, respectively. Insignia owns the remaining units in
IPLP.
 
     The formation transactions represent a reorganization of entities under
common control, and the accompanying financial statements represent the
consolidated and combined financial statements applicable to those assets and
entities contributed to IPT as a part of its formation.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Consolidation and Combination
 
     The accompanying financial statements include the consolidated balance
sheets of IPT as of December 31, 1997 and 1996, and the related consolidated
statements of income, shareholders' equity and cash flows for the year ended
December 31, 1997, and the combined statements of income, shareholders' equity
and cash flows for the years ended December 31, 1996 and 1995 of Insignia
Properties Trust Predecessor Entities. The financial statements include
wholly-owned subsidiaries which comprise or control the general partners of the
underlying partnerships, the majority-owned subsidiary IPLP, and certain
investments in real estate limited partnerships which were owned by Insignia
prior to contribution to IPLP ("Predecessor Entities"). Insignia's ownership in
IPLP is shown as minority interest. See Notes 3 and 6 regarding consolidation of
National Property Investors 4 ("NPI 4"), a majority-owned operating partnership.
 
  Use of Estimates
 
     The preparation of the financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
                                      F-22
<PAGE>   280
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Cash and Cash Equivalents
 
     The amount of cash on deposit in federally insured institutions at times
exceeds the limit on insured deposits. The Company considers all highly liquid
investments with original maturities of three months or less to be cash
equivalents.
 
  Investments in Real Estate Limited Partnerships
 
     Investments in real estate limited partnerships represent general partner
interests (or interests in general partner interests) generally ranging from
0.2% to 3% in certain limited partnerships and limited partner interests in real
estate limited partnerships ranging from less than 1% to 62%. Partnerships in
which IPT has a general partner interest or limited partnership ownership (in
excess of 2.5%) are accounted for by the equity method, unless IPT has a
majority ownership and controls the partnership on a non-temporary basis, in
which case the partnership is consolidated.
 
  Apartment Property
 
     Apartment property, consisting of land of approximately $1.5 million,
buildings and personal property of approximately $22.7 million, is stated at
cost, net of accumulated depreciation of approximately $1.9 million. Apartment
property consists of buildings and improvements. Depreciation is computed
principally by the straight-line method over the estimated useful lives of the
assets. Buildings are being depreciated over the estimated life of 30 years and
personal property over the estimated life of 5 years (see Note 7).
 
     In 1996, IPT adopted FASB Statement No. 121, "Accounting for the Impairment
of Long-Lived Assets to be Disposed Of" (FAS 121), which requires impairment
losses to be recognized for long-lived assets used in operations when indicators
of impairment are present and the undiscounted cash flows are not sufficient to
recover the assets carrying amount. The impairment loss is measured by comparing
the fair value of the asset to its carrying amount. The adoption of FAS 121 had
no material effect on the accompanying financial statements.
 
  Revenue Recognition
 
     Rental income attributable to leases is recorded when due from tenants and
is recognized monthly as it is earned, which is not materially different than on
a straight-line basis. Interest income is recorded on an accrual basis.
 
  Lease Agreements
 
     The Company generally leases apartment units for twelve-month terms or
less, renewable upon consent of both parties.
 
  Loan Costs
 
     Loan costs include fees and costs paid to third parties for obtaining or
refinancing outstanding indebtedness. These costs are amortized over the term of
the respective outstanding debt. Loan costs of approximately $524,000 and
$505,000, net of accumulated amortization of approximately $81,000 and $9,000,
at December 31, 1997 and 1996, respectively, are included in other assets.
 
  Advertising Expense
 
     IPT expenses the cost of advertising as incurred. The amounts incurred for
1997, 1996 and 1995 did not have a material effect on the financial statements.
 
                                      F-23
<PAGE>   281
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Deferred Expenses
 
     Deferred expenses are included in other assets and primarily consist of
organization costs which are being amortized using the straight-line method over
five years.
 
  Distributions
 
     The Company intends to pay distributions of at least the amount required to
maintain REIT status under the Internal Revenue Code. In August 1997, the IPT
Board adopted a policy to pay a quarterly distribution of $0.15 per common
share; however, the payment of any distribution will be dependent on the
liquidity and cash flows of the Company, which are primarily dependent on
distributions from the underlying partnerships.
 
  Earnings Per Share
 
     In 1997, the Financial Accounting Standards Board issued Statement No. 128,
"Earnings per Share". Statement 128 replaced the calculation of primary and
fully diluted earnings per share with basic and diluted earnings per share.
Unlike primary earnings per share, basic earnings per share excludes any
dilutive effects of options, warrants and convertible securities. Diluted
earnings per share is very similar to the previously reported fully diluted
earnings per share.
 
     Earnings per share is computed based on the weighted average number of
common shares outstanding. The conversion of an OP Unit to a Common Share is not
considered a dilutive item since the allocation of earnings to an OP Unit is
equivalent to a Common Share. Earnings per share was not calculated prior to
1997 because IPT shares were not issued until December 30, 1996. Diluted
earnings per share is not presented because the Company has no dilutive items;
thus, basic and diluted earnings per share are equal.
 
  Fair Value
 
     FASB Statement No. 107, "Disclosure about Fair Value of Financial
Instruments," requires disclosure of fair value information about financial
instruments for which it is practicable to estimate that value. The fair values
of the Company's financial instruments at December 31, 1997 and 1996 approximate
their carrying values.
 
  Federal Income Taxes
 
     The Company elected to be taxed as a REIT under the Internal Revenue Code
of 1986, as amended (the "Code"), beginning with its taxable year ending
December 31, 1996. Generally, a REIT which complies with the provisions of the
Code and distributes at least 95% of its taxable income to its shareholders does
not pay federal income taxes on its distributed income. Since IPT distributed in
excess of 100% of its taxable income, no provision has been made for federal
income taxes. If the Company fails to qualify as a REIT in any year, its taxable
income may be subject to income tax at regular corporate rates (including any
applicable alternative minimum tax). Even if the Company qualifies for taxation
as a REIT, the Company may be subject to certain state and local taxes.
 
     Distributions declared of $0.53 per share to shareholders of record on
December 30, 1996 and $0.15 per share to shareholders of record on October 31,
1997 were paid during the year ended December 31, 1997. Distributions paid to
shareholders of $0.20 per share were made during the year ended December 31,
1996. For federal tax purposes, the portions of the 1997 distribution relating
to return of capital and earnings and profits are 59% and 41%, respectively. The
1996 distribution consisted entirely of a return of capital. No REIT operating
income was earned during 1996. Earnings and profits which determine the
taxability of dividends to shareholders, differ from net income reported for
financial reporting purposes due to differences for federal tax purposes in the
estimated useful lives to compute depreciation and the carrying value (basis) of
the investment in partnership interests.
 
                                      F-24
<PAGE>   282
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Reclassifications
 
     Certain amounts from prior years have been reclassified to conform with the
1997 presentation.
 
3. INVESTMENTS IN REAL ESTATE LIMITED PARTNERSHIPS
 
     The Company has significant investments in 28 limited partnerships and
nominal investments in 20 limited partnerships which own (or previously owned)
real estate consisting primarily of apartments, and to a lesser extent
commercial property, throughout the United States. The Company's capital
ownership percentages (which are generally less than the operating percentages)
of the significant investments in partnerships at December 31, 1997 and date
acquired are as follows:
 
<TABLE>
<CAPTION>
                                                           CAPITAL          INITIAL
            REAL ESTATE LIMITED PARTNERSHIP              OWNERSHIP %    ACQUISITION DATE
            -------------------------------              -----------    ----------------
<S>                                                      <C>            <C>
Consolidated Capital Growth Fund.......................      39%         December 1994
Consolidated Capital Institutional Properties..........      26%         December 1994
Consolidated Capital Institutional Properties/3........      12%         December 1994
Consolidated Capital VI................................      22%         December 1994
Consolidated Capital III...............................      24%          January 1995
Consolidated Capital IV................................      27%          January 1995
Johnstown/Consolidated Income Partners.................      10%         December 1995
Davidson Growth Plus, L.P..............................      11%         December 1995
Shelter Properties I...................................      39%              May 1995
Shelter Properties II..................................      33%              May 1995
Shelter Properties III.................................      34%              May 1995
Shelter Properties V...................................      39%              May 1995
Shelter Properties VI..................................      28%              May 1995
National Property Investors III........................      45%          January 1996
National Property Investors 5..........................      47%          January 1996
National Property Investors 6..........................      44%          January 1996
National Property Investors 7..........................      43%          January 1996
National Property Investors 8..........................      38%          January 1996
Century Property Fund XIV..............................      41%          January 1996
Century Property Fund XV...............................      40%          January 1996
Century Property Fund XVI..............................      37%          January 1996
Century Property Fund XVII.............................      38%          January 1996
Century Property Fund XVIII............................      29%          January 1996
Century Property Fund XIX..............................      33%          January 1996
Century Property Fund XXII.............................      27%          January 1996
Fox Strategic Housing Income Partners..................      15%           August 1997
Consolidated Capital Institutional Properties/2........      20%         December 1997
Shelter Properties IV..................................      32%         December 1997
</TABLE>
 
     The Company also owns 62% of National Property Investors 4 and therefore
consolidates the financial statements of this partnership.
 
                                      F-25
<PAGE>   283
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The acquisitions were accounted for as purchase transactions by the
predecessor entities of IPT. A summary of the acquisitions follows:
 
  1994 to 1996 Acquisitions
 
     Limited partnership interests in four of the Consolidated Capital
partnerships were purchased in December 1994 by Insignia. Limited partnership
interests in two other Consolidated Capital partnerships were acquired by tender
offer through consolidated 60% owned subsidiaries of Insignia in January of
1995. The 40% minority interest in these subsidiaries was purchased in 1996.
 
     The Shelter Properties limited partnership interests were acquired in May
1995 as a result of tender offers commenced by Insignia in April 1995. The
partnership interests in the National Property partnerships and the Century
partnerships were acquired in January 1996 in connection with the acquisition by
Insignia, and certain of its affiliates, of substantially all of the assets of
National Properties Investors, Inc. ("NPI Acquisition").
 
     Limited partner interests in Davidson Growth Plus, L.P. were purchased in
December 1995 through a tender offer, and interests in Johnstown/Consolidated
Income Partners were acquired in private purchases during 1995 and 1996.
 
  1997 Acquisitions
 
     In June 1997, Insignia acquired additional limited partnership interests in
the Shelter Properties portfolio and Davidson Growth Plus, L.P. in a privately
negotiated transaction ("High River Transaction"). Insignia contributed, at
Insignia's cost, the interests acquired in the High River Transaction (with
exception of the limited partner interests in Shelter Properties IV Limited
Partnership) to IPT in exchange for 1,162,451 IPT Common Shares. IPT then
contributed the interests to IPLP in exchange for 1,162,451 general partner
units of IPLP.
 
     In October 1997, a wholly-owned subsidiary of IPLP, completed tender offers
for limited partnership interest in six partnerships: Century Property Fund
XVII, Century Property Fund XIX, Century Property Fund XXII, National Property
Investors 4, Consolidated Capital Properties IV, and Fox Strategic Housing
Income Partners (the "August Tender Partnerships").
 
     In December 1997, a wholly-owned subsidiary of IPLP, completed tender
offers for limited partnership interest in two partnerships: Consolidated
Capital Institutional Properties and Consolidated Capital Institutional
Properties/2 (the "December Tender Partnerships").
 
     On December 31, 1997, IPLP exercised an option to acquire 16,010 limited
partner interests in Shelter Properties IV Limited Partnership in exchange for a
total of 1,016,448 units in IPLP to be issued to Insignia. The acquired limited
partner interests were recorded at Insignia's historical cost.
 
  Equity in Earnings
 
     Equity in earnings of the aforementioned partnerships have been included in
these financial statements from the date of their respective acquisition. Equity
in earnings from these partnerships amounted to approximately $8,062,000,
$3,587,000 and $2,455,000 for the years ended 1997, 1996 and 1995, respectively.
Equity in earnings excludes the Company's equity interest in extraordinary
losses by the partnerships from early extinguishments of debt which are
reflected separately in the income statement. The Company owns 62% of NPI 4 and,
therefore, consolidates the accounts of this partnership.
 
                                      F-26
<PAGE>   284
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Summary of Investments
 
     The following table presents a summary of investments made by IPT in
limited partnerships and the carrying amounts. The investment in NPI 4, in which
a 62% interest is held, is not included in the table below but rather is
included as a consolidated subsidiary in the accompanying financial statements.
 
<TABLE>
<CAPTION>
                                                               (IN THOUSANDS)
<S>                                                            <C>
ConCap acquisition in December 1994.........................      $ 38,233
  Equity earnings for 1994..................................           113
                                                                  --------
Balance at December 31, 1994................................        38,346
  ConCap Tender Offers......................................         5,479
  Shelter Tender Offers.....................................        16,860
  Other purchases...........................................         1,807
  Equity earnings for 1995..................................         2,455
  Distributions received....................................       (10,910)
                                                                  --------
Balance at December 31, 1995................................        54,037
  NPI Acquisition in January 1996...........................        66,501
  Purchase of minority interest.............................         3,923
  Other purchases...........................................         1,083
  Equity earnings for 1996..................................         3,587
  Equity in extraordinary losses -- refinancings............        (1,132)
  Distributions received....................................        (9,258)
                                                                  --------
Balance at December 31, 1996................................       118,741
  Purchases.................................................        30,592
  Equity Earnings...........................................         8,062
  Equity in extraordinary losses -- refinancings............           (70)
  Issuance of IPT shares for partnership interests..........        20,379
  Distributions received....................................       (18,235)
                                                                  --------
Balance at December 31, 1997................................      $159,469
                                                                  ========
</TABLE>
 
  Pro forma Information (Unaudited)
 
     Pro forma unaudited results of operations for the years ended December 31,
1997, 1996 and 1995 assuming consummation of the August Tender Partnerships,
December Tender Partnerships, the High River Transaction, and the exercise of
the Shelter Properties IV option at January 1, 1996, the NPI and other 1996
acquisitions at January 1, 1995, are as follows:
 
<TABLE>
<CAPTION>
                                                           1997          1996          1995
                                                        ----------    ----------    ----------
                                                        (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                     <C>           <C>           <C>
Revenues..............................................   $19,848       $11,447       $10,720
Income before extraordinary items.....................     8,069         4,561         3,107
Net income............................................     7,999         3,429         2,140
Per share amounts:
  Income before extraordinary items...................       .53           .37           .25
  Net income..........................................       .53           .28           .17
</TABLE>
 
     Minority interest for 1997, 1996 and 1995 has been adjusted for the
aforementioned acquisitions. The pro forma information is not necessarily
indicative of what the Company's results of operations would have been if the
transactions had occurred at the beginning of each period presented.
Additionally, the pro forma information does not purport to be an indication of
the Company's results of operations for future periods.
 
                                      F-27
<PAGE>   285
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The following summarized financial information represents the combined
results as reported in the separate annual reports of the twenty-eight (1997)
and twenty-five (1996) partnerships in which IPT has a significant investment.
The information below excludes the financial information of NPI 4, which is
consolidated by the Company.
 
  CONDENSED BALANCE SHEET INFORMATION
 
<TABLE>
<CAPTION>
                                                                    DECEMBER 31,
                                                              ------------------------
                                                                 1997          1996
                                                              ----------    ----------
                                                                   (IN THOUSANDS)
<S>                                                           <C>           <C>
Cash and investments........................................  $  102,994    $  111,733
Restricted escrows, deposits and receivables................      45,127        21,055
Other assets................................................      19,249        35,473
Real estate.................................................   1,424,835     1,251,952
Less accumulated depreciation...............................    (750,292)     (622,433)
                                                              ----------    ----------
          Net real estate...................................     674,543       629,519
                                                              ----------    ----------
          Total assets......................................  $  841,913    $  797,780
                                                              ==========    ==========
Mortgage notes payable......................................  $  660,919    $  618,176
Other liabilities...........................................      32,196        43,085
                                                              ----------    ----------
          Total liabilities.................................     693,115       661,261
Partners' capital...........................................     148,798       136,519
                                                              ----------    ----------
          Total liabilities and partners' capital...........  $  841,913    $  797,780
                                                              ==========    ==========
</TABLE>
 
  CONDENSED STATEMENT OF EARNINGS INFORMATION
 
<TABLE>
<CAPTION>
                                                         YEAR ENDED DECEMBER 31,
                                                     --------------------------------
                                                       1997        1996        1995
                                                     --------    --------    --------
                                                              (IN THOUSANDS)
<S>                                                  <C>         <C>         <C>
Revenues...........................................  $282,375    $247,017    $237,946
Expenses:
  Property operations..............................   149,562     136,646     130,225
  Provision for possible losses....................        --          --       8,255
  Interest.........................................    56,307      51,823      54,939
  Depreciation and amortization....................    56,456      49,762      49,855
  General and administrative.......................    11,205      10,103      11,858
  Partnership management fees......................        --          --         626
                                                     --------    --------    --------
          Total expenses...........................   273,530     248,334     255,758
Gain on disposition of property....................     8,679       5,572      18,285
                                                     --------    --------    --------
Income before extraordinary item...................    17,524       4,255         473
Extraordinary items................................      (200)        371      (2,884)
                                                     --------    --------    --------
          Net income (loss)........................  $ 17,324    $  4,626    $ (2,411)
                                                     ========    ========    ========
</TABLE>
 
     At December 31, 1997, the unamortized excess of the Company's investments
over the respective partnerships' historical cost of their net assets was
approximately $125 million, which has been attributed to the fair values of the
investee's underlying properties and is being depreciated through equity
earnings over their useful lives (30 years). The Company's investment has been
recorded at the historical cost of the acquisitions by Insignia. The partnership
interests were acquired over a three year period. The financial results of each
individual partnership are reflected in equity earnings subsequent to the date
of acquisition.
 
                                      F-28
<PAGE>   286
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
4. LIABILITIES
 
  Accounts Payable -- Due to Insignia
 
     Accounts Payable -- Due to Insignia represent payments made by Insignia on
behalf of IPT.
 
  Distributions Payable
 
     IPT's Board of Trustees declared a distribution of $2,786,000 and
$5,880,000 to shareholders of record on December 23, 1997 and December 30, 1996,
respectively. The distributions were paid during January 1998 and 1997,
respectively.
 
  Accrued Expenses
 
<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                                              --------------
                                                               1997     1996
                                                              ------    ----
                                                              (IN THOUSANDS)
<S>                                                           <C>       <C>
Accrued professional fees...................................  $  485    $ --
Tenant security deposits....................................     405     409
Accrued interest............................................     118     118
Management fees.............................................      21     120
Other.......................................................     193     157
                                                              ------    ----
                                                              $1,222    $804
                                                              ======    ====
</TABLE>
 
5. NOTES PAYABLE
 
  Note Payable
 
     A note payable was issued in connection with the acquisition of the stock
of a corporate general partner and is payable as to principal and interest when
proceeds are received by that corporate general partner from an investment in a
limited partnership with a carrying amount of $430,020. The note payable is
unsecured and bears simple interest at 6.5% per annum. During 1997, the note was
paid in full.
 
  Non-recourse Mortgage Note
 
     The $19.3 million non-recourse mortgage note is a first mortgage
encumbering the real estate of NPI 4. The note bears interest at 7.33%, with
interest only payable in monthly installments, and matures in 2003. IPT paid
interest of approximately $1,415,000 for 1997.
 
6. MINORITY INTEREST
 
  Operating Partnership
 
     Net income is allocated to the Minority Interests based upon their
respective ownership percentage of the Operating Partnership. Ownership
percentage is represented by dividing the number of OP Units held by the
Minority Interests by the OP Units held by Minority Interest and Common Shares
Outstanding. Such transactions and the proceeds therefrom are treated as capital
transactions and result in an allocation between Shareholder's Equity and
Minority Interest to account for the change in the respective percentage
ownership of the underlying equity of the Operating Partnership.
 
     IPLP had 27,989,098 and 19,567,535 units outstanding, including and
9,415,947 and 8,399,499 units held by Insignia at December 31, 1997 and 1996,
respectively. Pursuant to IPLP's partnership agreement, the limited partners
have received redemption rights, defined in the partnership agreement, which
will enable them to cause, subject to certain restrictions, IPLP to redeem each
unit for cash equal to the value of a
                                      F-29
<PAGE>   287
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
common share of IPT (or, at the general partner's election, it may purchase each
unit offered for redemption for one common share of IPT, subject to adjustment
upon the occurrence of share splits, merger, consolidations or similar pro rata
share transactions, which would have the effect of diluting the ownership
interests of the limited partners of IPLP or the shareholders of IPT).
 
  NPI 4
 
     NPI 4, in which a subsidiary of IPT is the sole general partner and IPLP
owns 62% of the limited partner interests (as of December 31, 1997), is
consolidated in the accompanying financial statements. The 62% of the NPI 4
property effectively owned by IPLP is stated at IPLP's cost, while the remaining
38% of the property not owned by IPLP is stated at the historical depreciated
cost of NPI 4. While Insignia paid approximately $9 million for a 62% interest
in the partnership, the 38% minority interest is recorded at zero since the
underlying partnership has a partners' deficit. Accordingly, assets of $25.6
million and liabilities of $17 million were recorded in connection with the
acquisition of a majority ownership in NPI 4. The result is that the property is
recorded on IPT's financial statements at below estimated fair value. The
distribution of $1.3 million to minority partners made in January 1997 by NPI 4
was recognized as a loss to IPT for financial reporting purposes because
generally accepted accounting principles do not allow a negative (debit) balance
in minority interest. Additional losses will be recognized for NPI 4, or any
other partnership which becomes a consolidated partnership, whenever
distributions are made to minority partners in excess of the recognized minority
interest in such partnership.
 
7. SHAREHOLDERS' EQUITY
 
     IPT's declaration of trust has authorized the issuance of up to 400,000,000
common shares and 100,000,000 preferred shares of beneficial interest. In 1996,
the Company was initially capitalized by the issuance of 7,283,780 common shares
in payment of debt of $72,837,800 owed by IPT to Insignia as a result of the
acquisition of the NPI partnership interests. IPT issued 3,271,547 common shares
to Insignia in respect of Insignia's 100% ownership interest in IPT. IPT
subsequently issued an additional 612,709 common shares to Insignia and an
affiliate of Insignia in exchange for the contribution to IPT of shares of stock
of certain corporate general partners. During 1997, IPT also issued 6,300 common
shares to Insignia and 4,700 shares to six accredited investors, who are
executive officers of Insignia. In June 1997, the Company issued to Insignia
1,162,451 common shares of IPT in return for the contribution of limited
partnership interests owned by Insignia.
 
     A private offering was completed in August 1997 with a total of 5,231,000
common shares issued at $10.00 per share. The Company also granted to certain
potential investors an option to purchase for cash up to 1,000,000 in the
aggregate, common shares of beneficial interest of IPT, at any time on or before
October 10, 1997, at the price of $10 per share, provided that the purchaser is
not in breach of certain covenants at the time of the purchase. This option was
exercised during 1997. IPLP had 27,989,098 and 19,567,535 units outstanding at
December 31, 1997 and 1996, respectively, which may be redeemed, subject to
certain restrictions, for an equivalent number of common shares of IPT.
 
     At December 31, 1997 approximately $6.3 million of the Company's retained
earnings is represented by undistributed earnings of the Company's underlying
investments in real estate limited partnerships that are accounted for by the
equity method.
 
  Share Incentive Plan
 
     In August 1997, IPT adopted the 1997 Share Incentive Plan (the "Plan") to
provide for the granting of share options and restricted shares to certain key
employees (including officers), directors, consultants and advisors of IPT,
including certain employees of Insignia. The Plan will be administered by the
Board of Trustees of IPT or a committee of the Board of Trustees. The Plan
provides that options granted under the
                                      F-30
<PAGE>   288
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
Plan may be "incentive share options" (as defined in the Code), non-qualified
options or restricted shares, which vest on the attainment of performance goals
or subject to vesting requirements or other restrictions prescribed by the Board
of Trustees. The maximum number of IPT common shares available for awards under
the Plan is 1,200,000 shares, subject to adjustment under certain circumstances.
The Plan may be terminated by the Board of Trustees of IPT at any time. As of
December 31, 1997, the IPT Board of Trustees had approved the granting of 25,000
share options and 38,000 restricted shares.
 
     The exercise price of options granted under the Plan may not be less than
100% of the fair market value of an IPT common share on the date of grant.
However, an incentive share option granted to the holder of more than 10% of the
total combined voting power of all of the shares of beneficial interest of IPT
or any subsidiary must have an exercise price of at least 110% of the fair
market value of the shares on the date of grant and the option by its terms must
not be exercisable after the expiration of five years from the date it is
granted. Absent a public market for the IPT common shares, the Plan provides for
the fair market value to be determined by the Board of Trustees (or a committee
thereof if one has been appointed to administer the Plan).
 
     An option may not be granted with a term exceeding ten years (five years in
the case of incentive stock options granted to a holder of more than 10% of the
total voting power of all classes of IPT's capital stock on the date of the
grant). Options may be exercised by paying the purchase price in cash or, if the
option agreement permits, wholly or partly in IPT common shares already owned by
the optionee.
 
     At or prior to the exercise of a nonqualified share option, the IPT Board
will have the discretion to permit the optionee, in lieu of purchasing the
entire number of shares subject to purchase under the option, to relinquish all
or part of the unexercised portion of the option for cash in the amount of the
difference between the aggregate value of the shares subject to the option and
the aggregate exercise price of the option. In the discretion of the optionee,
this amount may be paid in IPT common shares.
 
8. COMMITMENTS AND CONTINGENCIES
 
  General Partners
 
     The qualified REIT subsidiaries of IPT either control or serve as general
partner in limited partnerships and these subsidiaries may be liable for
recourse obligations of the limited partnerships if the limited partnerships
were unable to satisfy those obligations. IPT believes that each limited
partnership has more than adequate resources to discharge all recourse
obligations and maintain adequate insurance.
 
  Loan Commitments
 
     IPT is obligated to loan up to $500,000 to certain partnerships ($2,600,000
in aggregate) and $150,000 to certain other partnerships ($6,000,000 in
aggregate) at interest rates not to exceed the prime rate plus 2%. Subsidiaries
of IPT serve as general partner in these partnerships. There were no amounts
outstanding under these commitments at December 31, 1997 or 1996.
 
  Year 2000 (Unaudited)
 
     IPT is dependent upon Insignia for management and administrative services.
Insignia has completed an assessment and has determined that is will have to
modify or replace portions of its software so that its computer systems will
function properly with respect to dates in the year 2000 and thereafter. The
project is estimated to be completed not later than December 31, 1998, which is
prior to any anticipated impact on its operating systems. Insignia believes that
with modifications to existing software and conversions to new software, the
year 2000 issue will not pose significant operational problems for its computer
systems. However, if such modifications and conversions are not made, or are not
completed in a timely fashion, the year 2000 issue could have a material impact
on the operations of IPT.
 
                                      F-31
<PAGE>   289
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Obligations to Former General Partners
 
     Certain corporate general partners owned by IPT was acquired by Insignia
from unaffiliated prior owners. The acquisition agreements provided that
Insignia and IPT would be indemnified from claims attributable to events or
actions prior to their ownership, and Insignia (now IPT) indemnify the prior
owners from claims or causes of action arising after the change in ownership. In
addition, certain former owners of the general partners of seven limited
partners retained the obligation with respect to 100% (and in some instances
75%) for capital contributions that may be required by the general partners upon
windup of the applicable partnerships.
 
  Environmental Liabilities
 
     Under various Federal and state environmental laws and regulations, a
current or previous owner or operator of real estate may be required to
investigate and clean up certain hazardous or toxic substances or petroleum
product releases at the property, and may be held liable to a governmental
entity or to third parties for property damage and for investigation and cleanup
costs incurred by such parties in connection with contamination. In addition,
some environmental laws create a lien on the contaminated site in favor of the
government for damages and costs it incurs in connection with the contamination.
The owner or operator of a site may be liable under common law to third parties
for damages and injuries resulting from environmental contamination emanating
from the site. There can be no assurance that the Company, any of its
affiliates, or any assets owned or controlled by the Company or any of its
affiliates currently are in compliance with all of such laws and regulations, or
that the Company or its affiliates will not become subject to liabilities that
arise in whole or in part out of any such laws, rules or regulations. Management
is not currently aware of any environmental liabilities which are expected to
have a material adverse effect on the Company's operations or financial
condition.
 
  Litigation
 
     In January and February 1998, a limited partner in several partnerships in
which the Company owns limited partner interests commenced arbitration
proceedings and litigation against those partnerships and their corporate
general partners. The claims in both the arbitration and in complaints filed in
the Circuit Court of Jackson County, Missouri assert that the corporate general
partners owned by IPT breached certain contractual and fiduciary duties
allegedly owed to the claimant. The Company believes the claims asserted in
these proceedings to be without merit and intends to vigorously defend the
claims.
 
     Certain subsidiaries and partnerships in which the Company owns limited
partner interests are defendants in lawsuits arising in the ordinary course of
business. Such lawsuits are primarily insured claims arising from accidents at
managed properties. Claims may demand substantial compensatory and punitive
damages. Management believes that the litigation will be resolved without a
material impact on the financial position or results of operations of the
Company.
 
9. RELATED PARTY TRANSACTIONS
 
  Advisory Agreement
 
     The Company initially engaged Insignia to provide a broad range of
services, including executive advisory, investment advisory, acquisition,
administrative, financial and accounting services. In consideration for these
services, the Company will pay Insignia an advisory fee as defined in the
Advisory Agreement adjusted annually based upon certain performance factors. The
initial fee for these services is $1.0 million divided equally between the two
components. In addition to the advisory fee, the Company agreed to pay to
Insignia an annual incentive fee on January 31 of each year beginning in 1998.
The incentive fee will be equal to 3% of the amount by which IPT's Funds from
Operations per share, as defined in the Advisory Agreement,
                                      F-32
<PAGE>   290
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
for the year then ending exceeds 105% of the greater of IPT's Funds from
Operations per share for the preceding year or the highest level of Funds from
Operations per share of IPT attained during any previous calendar year,
multiplied by weighted average number of IPT common shares then outstanding
(including, for this purpose, all OP Units not owned by IPT). Finally, the
Company will reimburse Insignia for certain costs incurred in connection with
acquisition services and additional services provided to the Company. During
1997, $1.7 million was paid to Insignia in connection with the advisory
agreement, including $0.7 million for acquisition services which was capitalized
by IPT. No such amounts were incurred during 1996 and 1995.
 
     Effective January 1, 1998, the Advisory Agreement between IPT, IPLP and
Insignia was terminated without penalty to IPT, IPLP or Insignia, and certain
provisions until then contained in the Advisory Agreement were incorporated into
the Partnership Agreement effective as of the same date. Also effective upon the
termination of the Advisory Agreement, IPT, IPLP and Insignia entered into the
Acquisition and Disposition Services Agreement. As of January 1, 1998, the
eleven employees of Insignia, who prior to that time had worked exclusively on
matters concerning IPT, became employees of IPT. Also, effective on that date,
certain executive officers of IPT, who are also employed as executive officers
of Insignia, received 510,000 restricted IPT common shares, in the aggregate,
which will vest ratably over a five-year period. The restricted shares received
by such officers constitutes the sole compensation that they will receive from
IPT for services rendered to IPT over such five-year period by such shared
employees.
 
  Property Management
 
     The Partnership Agreement requires IPT and IPLP to cause Insignia to be
retained as property manager for all properties now and hereafter controlled by
IPT pursuant to separate property management agreements. The property management
services to be provided by Insignia include (i) performing all accounting
functions incidental to the properties, such as rent processing and collection,
accounts payable (e.g., mortgages, taxes and insurance), payroll and financial
reporting, (ii) acting as a rental agent for the properties, and (iii)
overseeing the routine maintenance responsibilities relating to the properties.
The property management agreements generally provide for the payment of fees to
Insignia based on a percentage of rent collections from the managed properties.
 
     The Partnership agreement also provides that if, after taking into account
certain equitable adjustments specified in the Partnership Agreement, IPLP may
be required pay an additional fee to Insignia (the "Contract Loss Fee") if
certain parameters are not met as specified in the Partnership Agreement.
 
     IPT's obligation to cause Insignia to be retained as property manager for
all the properties controlled by IPT terminates, on a property by property
basis, upon the earliest to occur of (i) the termination of the Partnership
Agreement, (ii) the termination by Insignia of the applicable property
management agreement, (iii) the termination of the applicable property
management agreement by the applicable property-owning entity for cause (but not
for any other reason, notwithstanding that such termination may have been
expressly permitted by the terms of such property management agreement), or (iv)
such time as IPT no longer controls such property.
 
  Partnership Administration Services
 
     Insignia currently provides partnership administration services to each
Controlled Partnership. Such services, for which Insignia is typically paid on a
reimbursement basis only, generally include accounting functions, investor
relations and the preparation and filing of required reports under the Exchange
Act.
 
                                      F-33
<PAGE>   291
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
10. SUBSEQUENT EVENTS
 
  Raintree Apartment Acquisition
 
     On January 28, 1998, Raintree Pensacola, L.P., a limited partnership
controlled by IPLP, acquired a property in Pensacola, Florida referred to as the
Raintree Apartments. The Raintree Apartments contain 168 residential apartment
units. The aggregate purchase price paid for the Raintree Apartments was
approximately $3.7 million.
 
  December Tender Offers
 
     On various dates in December 1997, a wholly-owned subsidiary of IPLP,
commenced tender offers to purchase units of limited partner interest in
Multi-Benefit Realty Fund 87-1, Century Properties Fund XIV, Century Properties
Fund XV, Century Properties Fund XVIII, Consolidated Capital Growth Fund,
Consolidated Capital Institutional Properties/3, Consolidated Capital Properties
V, Johnstown/Consolidated Income Partners and Shelter Properties VII Limited
Partnership. These tender offers expired in January and February 1998 with IPLP
acquiring additional limited partnership interest of approximately $11.0
million, including acquisition costs of approximately $0.6 million.
 
  MAE GP Corporation Merger
 
     Effective February 25, 1998, MAE GP Corporation, which until then was a
wholly-owned subsidiary of MAE LP, was merged with and into IPT, with IPT
surviving the merger (the "MAE GP Merger"). As consideration for the MAE GP
Merger, IPT issued 332,300 IPT Common Shares to MAE LP valued for purposes of
the MAE GP Merger at $10.53 per share. MAE GP Corporation owned or controlled
equity interests in entities which comprised or controlled the general partners
of 29 public and 61 private real estate limited partnerships (collectively, the
"MAE Partnerships"), nine of which are included in the IPT Partnerships. The MAE
Partnerships own, in the aggregate, 167 properties containing approximately
31,000 residential apartment units and approximately 2.2 million square feet of
commercial space. In connection with the MAE GP Merger, all of the AMIT Class B
Shares, which were until then owned by MAE GP Corporation, were transferred by
dividend to MAE prior to the MAE GP Merger.
 
  MAE and Insignia Contributions to IPLP
 
     In connection with the MAE GP Merger, on February 17, 1998, IPLP purchased
certain assets from MAE for approximately $596,000 cash. The assets purchased
from MAE consisted of (i) a 99% limited partner interest in Insignia Jacques
Miller, L.P. ("IJM"), which in turn owns non-controlling equity interests in
entities that comprise or control the general partners of 30 of the MAE
Partnerships and various notes receivable (the 1% general partner interest in
IJM was acquired by IPT from MAE GP in the MAE GP Merger), and (ii) a 6.557%
limited partner interest in Buccaneer Trace Limited Partnership, which owns a
208-unit residential apartment complex located in Savannah, Georgia.
 
     Also in connection with the MAE GP Merger, on February 17, 1998, Insignia
contributed all of the limited partner interests it owned in the MAE
Partnerships to IPLP in exchange for OP Units. The value of the interests
contributed was approximately $5,460,000, for which Insignia received 518,528 OP
Units, based on a value of $10.53 per unit. The interests will be recorded at
the historical cost of Insignia.
 
  Winthrop Option
 
     On February 17, 1998, Insignia granted IPLP an option (the "Winthrop
Option") to acquire all but not less than all of the Winthrop Interest (acquired
by Insignia during 1997) at any time on or before December 31, 1998. The
Winthrop Option is exercisable by IPLP for an aggregate cash amount of
approximately $46 million, plus varying amounts of interest on approximately $40
million, of such amount at a
                                      F-34
<PAGE>   292
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
     NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
rate equal to Insignia's cost of funds (based on the interest rate in effect
from time to time under Insignia's revolving credit agreement) and a ratable
portion of the transaction costs incurred by Insignia in connection with the
acquisition.
 
11. EVENTS (UNAUDITED) SUBSEQUENT TO INDEPENDENT AUDITORS' REPORT
 
  Apartment Investment Management Company Merger
 
     On October 1, 1998 Insignia merged its national residential property
management operations, and its controlling interest in Insignia Properties
Trust, with Apartment Investment Management Company ("AIMCO"), a publicly traded
real estate investment trust. In connection with the merger, AIMCO has committed
to offer to acquire the equity of IPT not owned by Insignia for not less than
$13.25 per share.
 
  Angeles Mortgage Investment Trust Merger
 
     On September 17, 1998, Angeles Mortgage Investment Trust ("AMIT"), an
unincorporated California Business Trust, was merged with and into IPT. The
merger provided that each AMIT Class A share was exchanged for 1.516 IPT common
shares and each outstanding AMIT Class B share was exchanged for 0.0309 IPT
common shares.
 
                                      F-35
<PAGE>   293
 
                                                                    SCHEDULE III
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
                    REAL ESTATE AND ACCUMULATED DEPRECATION
                               DECEMBER 31, 1997
                             (DOLLARS IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                GROSS AMOUNT AT WHICH CARRIED AT
                                                                                        DECEMBER 31, 1997
                                         INITIAL COST                      -------------------------------------------
                                      ------------------       COST                 BUILDINGS
                                               BUILDINGS    CAPITALIZED                AND
                                                  AND        (REMOVED)               RELATED
                                               PERSONAL    SUBSEQUENT TO            PERSONAL              ACCUMULATED
                       ENCUMBRANCES    LAND    PROPERTY     ACQUISITION     LAND    PROPERTY     TOTAL    DEPRECIATION
                       ------------   ------   ---------   -------------   ------   ---------   -------   ------------
<S>                    <C>            <C>      <C>         <C>             <C>      <C>         <C>       <C>
Village of Pennbrook
  Falls Township,
  Pennsylvania.......    $19,300      $1,529    $21,541       $1,154       $1,529    $22,695    $24,224      $1,867
                         =======      ======    =======       ======       ======    =======    =======      ======
 
<CAPTION>
 
                         DATE OF        DATE      DEPRECIABLE
                       CONSTRUCTION   ACQUIRED   LIFE -- YEARS
                       ------------   --------   -------------
<S>                    <C>            <C>        <C>
Village of Pennbrook
  Falls Township,
  Pennsylvania.......      1973         1/96         5-30
</TABLE>
 
                                      F-36
<PAGE>   294
 
                                                                    SCHEDULE III
 
               INSIGNIA PROPERTIES TRUST AND PREDECESSOR ENTITIES
 
              REAL ESTATE AND ACCUMULATED DEPRECIATION (CONTINUED)
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                              ------------------
                                                               1997       1996
                                                              -------    -------
<S>                                                           <C>        <C>
Reconciliation of Real Estate
  Balance at beginning of year..............................  $23,026    $    --
     Acquisition............................................      817     22,253
     Apartment property improvements........................      381        773
                                                              -------    -------
  Balance at end of year....................................  $24,224    $23,026
                                                              =======    =======
Reconciliation of Accumulated Depreciation
  Balance at beginning of year..............................  $   901    $    --
     Additions charged to expense...........................      966        901
                                                              -------    -------
  Balance at end of year....................................  $ 1,867    $   901
                                                              =======    =======
</TABLE>
 
                                      F-37
<PAGE>   295
 
               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
The Partners
Shelter Properties Partnerships
 
     We have audited the accompanying combined balance sheets of Shelter
Properties Partnerships as of December 31, 1996 and 1995, and the related
combined statements of operations, changes in partners' capital (deficit) and
cash flows for each of the three years in the period ended December 31, 1996.
Our audits also included the financial statement schedule included on pages F-49
to F-51. These financial statements and the financial statement schedule are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements and the financial statement schedule 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 combined financial position of the Shelter
Properties Partnerships at December 31, 1996 and 1995, and the combined results
of their operations and their cash flows for each of the three years in the
period ended December 31, 1996, in conformity with generally accepted accounting
principles. Also, in our opinion, the related financial statement schedule, when
considered in relation to the basic financial statements taken as a whole,
present fairly in all material respects the information set forth therein.
 
                                                  /s/ ERNST & YOUNG LLP
 
Greenville, South Carolina
February 5, 1997
 
                                      F-38
<PAGE>   296
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
                            COMBINED BALANCE SHEETS
                             (DOLLARS IN THOUSANDS)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  DECEMBER 31,
                                                              --------------------
                                                                1996        1995
                                                              ---------   --------
<S>                                                           <C>         <C>
Cash:
  Unrestricted..............................................  $  15,741   $ 11,607
  Restricted................................................        986        983
Accounts receivable.........................................        125        118
Escrow for taxes and insurance..............................      1,466      1,196
Restricted escrows..........................................      5,505      4,400
Other assets................................................      2,480      2,118
Investment properties:
  Land......................................................     13,715     13,714
  Buildings and related personal property...................    180,571    177,167
                                                              ---------   --------
                                                                194,286    190,881
  Less accumulated depreciation.............................   (101,529)   (94,084)
                                                                 92,757     96,797
                                                              ---------   --------
                                                              $ 119,060   $117,219
                                                              =========   ========
 
                   LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)
 
Liabilities:
  Accounts payable..........................................  $     892   $  1,411
  Tenant security deposits..................................        986        972
  Accrued taxes.............................................      1,375        978
  Other liabilities.........................................      1,733      2,963
  Mortgage notes payable....................................     87,997     83,744
                                                              ---------   --------
                                                                 92,983     90,068
Partners' capital (deficit):
  General partners..........................................       (854)      (856)
  Limited partners..........................................     26,931     28,007
                                                              ---------   --------
                                                                 26,077     27,151
                                                              ---------   --------
                                                              $ 119,060   $117,219
                                                              =========   ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-39
<PAGE>   297
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
                       COMBINED STATEMENTS OF OPERATIONS
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                              ---------------------------
                                                               1996      1995      1994
                                                              -------   -------   -------
<S>                                                           <C>       <C>       <C>
Revenues
  Rental income.............................................  $36,287   $36,170   $34,667
  Other income..............................................    2,366     2,161     1,960
                                                              -------   -------   -------
          Total revenue.....................................   38,653    38,331    36,627
Expenses
  Operating.................................................   12,401    12,506    12,559
  General and administrative................................    1,148     2,045       986
  Maintenance...............................................    6,237     6,253     6,070
  Depreciation..............................................    7,658     7,776     7,448
  Interest..................................................    7,734     8,156     8,405
  Property taxes............................................    2,660     2,599     2,654
                                                              -------   -------   -------
          Total expenses....................................   37,838    39,335    38,122
Casualty gain...............................................       --       199         2
Gain (loss) on sale of property, net........................       --     1,296       (60)
                                                              -------   -------   -------
Income (loss) before extraordinary item.....................      815       491    (1,553)
Extraordinary item -- early extinguishment of debt..........     (633)       --       (87)
                                                              -------   -------   -------
Net income (loss)...........................................  $   182   $   491   $(1,640)
                                                              =======   =======   =======
</TABLE>
 
                            See accompanying notes.
 
                                      F-40
<PAGE>   298
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
         COMBINED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (DEFICIT)
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                        LIMITED
                                                      PARTNERSHIP   GENERAL    LIMITED
                                                         UNITS      PARTNERS   PARTNERS    TOTAL
                                                      -----------   --------   --------   --------
<S>                                                   <C>           <C>        <C>        <C>
Net original capital contributions..................    192,362      $  10     $161,716   $161,726
                                                       ========      =====     ========   ========
Partners' (deficit) capital at December 31, 1993....    192,362      $(817)    $ 32,926   $ 32,109
  Distributions payable to partners.................         --        (15)      (1,492)    (1,507)
  Net (loss) for the year ended December 31, 1994...         --        (16)      (1,624)    (1,640)
                                                       --------      -----     --------   --------
  Partners' (deficit) capital at December 31,
     1994...........................................    192,362       (848)      29,810     28,962
  Distributions payable to partners.................         --        (13)      (2,289)    (2,302)
  Net income for the year ended December 31, 1995...         --          5          486        491
                                                       --------      -----     --------   --------
Partners' (deficit) capital at December 31, 1995....    192,362       (856)      28,007     27,151
  Distributions payable to partners.................         --         --       (1,256)    (1,256)
  Net income for the year ended December 31, 1996...         --          2          180        182
                                                       --------      -----     --------   --------
Partners' (deficit) capital at December 31, 1996....   $192,362      $(854)    $ 26,931   $ 26,077
                                                       ========      =====     ========   ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-41
<PAGE>   299
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
                       COMBINED STATEMENTS OF CASH FLOWS
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                              ----------------------------
                                                                1996      1995      1994
                                                              --------   -------   -------
<S>                                                           <C>        <C>       <C>
Operating activities
  Net income (loss).........................................  $    182   $   491   $(1,640)
  Adjustments to reconcile net income (loss) to net cash
     provided by operating activities:
     Depreciation...........................................     7,658     7,776     7,448
     Amortization of discounts and loan costs...............       757       795       786
     Casualty (gain)........................................        --      (199)       (2)
     (Gain) loss on sale of property........................        --    (1,296)       60
     Extraordinary item -- early extinguishment of debt.....       633        --        87
     Change in accounts:
       Restricted cash......................................        (4)       24       (77)
       Accounts receivable..................................        (6)      (42)      118
       Escrows for taxes....................................      (271)      184       196
       Other assets.........................................      (168)       (3)       71
       Accounts payable.....................................      (608)      376      (214)
       Tenant security liability............................        16       (52)       95
       Accrued taxes........................................       396      (200)      (86)
       Other liabilities....................................      (230)       78        46
                                                              --------   -------   -------
Net cash provided by operating activities...................     8,355     7,932     6,888
Investing activities
  Property improvements and replacements....................    (3,594)   (4,392)   (3,670)
  Deposits to restricted escrows............................    (1,422)     (793)     (860)
  Receipts from restricted escrows..........................       318     1,095     1,487
  Proceeds from sale of property............................        --     2,412        --
  Insurance proceeds from property damage...................        59       296        89
  Condemnation proceeds.....................................        --        --        14
                                                              --------   -------   -------
Net cash used in investing activities.......................    (4,639)   (1,382)   (2,940)
Financing activities
  Payments on mortgage notes payable........................  $ (2,820)  $(2,294)  $(2,114)
  Repayment of mortgage notes payable.......................   (13,094)       --    (7,371)
  Proceeds from long-term borrowings........................    19,250        --     7,074
  Loan costs................................................      (597)       --       (91)
  Debt extinguishment costs.................................       (66)       --       (21)
  Distributions paid........................................    (2,255)   (1,309)   (1,505)
                                                              --------   -------   -------
  Net cash provided by (used in) financing activities.......       418    (3,603)   (4,028)
                                                              --------   -------   -------
  Net increase (decrease) in cash...........................     4,134     2,947       (80)
  Cash at beginning of year.................................    11,607     8,660     8,740
                                                              --------   -------   -------
  Cash at end of year.......................................  $ 15,741   $11,607   $ 8,660
                                                              ========   =======   =======
Supplemental disclosure of cash flow information
  Cash paid for interest....................................  $  6,989   $ 7,374   $ 7,621
                                                              ========   =======   =======
</TABLE>
 
                            See accompanying notes.
 
                                      F-42
<PAGE>   300
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
                     NOTES TO COMBINED FINANCIAL STATEMENTS
                               DECEMBER 31, 1996
 
1. ORGANIZATION AND BASIS OF PRESENTATION
 
  Organization
 
     Insignia Properties Trust ("IPT" or "the Company") was formed in 1996 by
Insignia Financial Group, Inc. ("Insignia") for the purpose of acquiring and
owning interests in multifamily residential properties, including limited and
general partner interests in partnerships which hold such real estate
properties. IPT has been organized in a manner that will allow it to be taxed as
a real estate investment trust ("REIT") under the Internal Revenue Code of 1986
beginning with the taxable year ended December 31, 1996. Insignia and its
affiliates have transferred to IPT equity interests in entities comprising or
controlling the general partners of 46 public real estate limited partnerships
(the "Equity Partnerships") in exchange for shares of beneficial interest of
IPT. IPT has also issued common shares to Insignia and certain of its employees
and affiliates in exchange for the payment of certain obligations of IPT.
Insignia also transferred its limited partnership interests in certain limited
partnerships, including Shelter Properties Partnerships (defined below), to
Insignia Properties L.P. ("IPLP") in exchange for units of IPLP.
 
     IPT is 98% owned by Insignia, with the remainder of its shares owned by
Metropolitan Asset Enhancement L.P., an affiliated company or certain Insignia
employees. As of December 31, 1996, IPLP is owned 57% by IPT with Insignia
owning the remaining 43%.
 
     The accompanying financial statements represent the combined financial
statements applicable to certain assets and entities contributed to IPT as a
part of its formation.
 
  Basis of Presentation
 
     The accompanying combined financial statements include the assets,
liabilities and results of operations of 5 partnerships that Insignia acquired
limited partnership interests in during May 1995 as a result of tender offers.
Insignia subsequently transferred such partnership interests to IPT. Such
combined group is herein referred to as the Shelter Properties Partnerships (the
"Partnerships"). These Partnerships are part of the Equity Partnerships
mentioned above. The Partnerships operate apartment properties located in the
south and southwest.
 
     The Partnerships included in these combined financial statements and IPT's
ownership interest in each are as follows:
 
<TABLE>
<CAPTION>
                                                              OWNERSHIP
                        PARTNERSHIP                           PERCENTAGE
                        -----------                           ----------
<S>                                                           <C>
Shelter Properties I........................................     27%
Shelter Properties II.......................................     23%
Shelter Properties III......................................     24%
Shelter Properties V........................................     26%
Shelter Properties VI.......................................     20%
</TABLE>
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Combination
 
     The combined financial statements include all of the accounts of the
Partnerships and their majority owned partnerships. All significant
interpartnership balances have been eliminated.
 
                                      F-43
<PAGE>   301
                        SHELTER PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Use of Estimates
 
     The preparation of the financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
  Escrows for Taxes and Insurance
 
     Currently, these funds are held by the Partnerships for the Partnerships'
properties. All tax escrow funds are designated for the payment of real estate
taxes.
 
  Restricted Escrows
 
     The Partnerships' maintain a capital improvement and a repair and
maintenance escrow account in which the funds deposited into these accounts are
designated for capital improvements or repairs and maintenance. Certain of these
accounts require the properties to maintain a per apartment unit balance in
reserve to cover necessary repairs and maintenance.
 
  Depreciation
 
     Depreciation is provided by the straight-line method over the estimated
lives of the apartment properties and related personal property. The estimated
lives of the apartment properties are from 15 to 37 years and the estimated
lives of the related personal property is from 5 to 7 years.
 
  Loan Costs
 
     Loan costs are included in other assets and are being amortized on a
straight-line basis over the life of the loans.
 
  Unrestricted Cash
 
     Unrestricted cash includes cash on hand and in banks, demand deposits,
money market investments, and certificates of deposit with original maturities
less than 90 days. At certain times, the amount of cash deposited at a bank may
exceed the limit on insured deposits.
 
  Restricted Cash -- Tenant Security Deposits
 
     The Partnerships require security deposits from lessees for the duration of
the lease and such deposits are considered restricted cash. Deposits are
refunded when the tenant vacates, provided the tenant has not damaged the unit
and is current on rental payments.
 
  General and Limited Partner Allocations
 
     Profits, gains, losses and cash distributions are allocated between general
and limited partners in accordance with the provisions of the respective
partnership agreements. In accordance with the partnership agreements, the
general partners of the partnerships may designate a portion of cash generated
from operations as "other reserves" in determining net cash from operations
available for distributions. At December 31, 1996, approximately $2 million has
been designated as other reserves.
 
  Leases
 
     The Partnerships generally lease apartment units for twelve-month terms or
less. The Partnerships recognize income as earned on its leases. In addition,
the Corporate General Partner's policy is to offer rental
                                      F-44
<PAGE>   302
                        SHELTER PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
concessions during particularly slow months or in response to heavy competition
from other similar complexes in the area. Concessions are charged to expense as
incurred.
 
  Investment Properties
 
     The Partnerships have adopted FASB Statement No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of,"
which requires impairment losses to be recorded on long-lived assets used in
operations when indicators of impairment are present and the undiscounted cash
flows estimated to be generated by those assets are less than the assets'
carrying amount. For the years ended December 31, 1996, 1995 and 1994, no
adjustments for impairment of value were recorded. The impairment loss is
measured by comparing the fair value of the asset to its carrying amount. The
effect of adoption was not material.
 
  Advertising
 
     The Partnerships expense the costs of advertising as incurred. Advertising
expense, included in operating expenses, was approximately $433,000 (1996),
$411,000 (1995) and $445,000 (1994), respectively.
 
  Fair Value
 
     The Partnerships have implemented FASB Statement No. 107, "Disclosure about
Fair Value of Financial Instruments," which requires disclosure of fair value
information about financial instruments for which it is practicable to estimate
that value. The carrying amount of the Partnerships' cash and investments
approximates fair value due to short-term maturities. The Partnerships estimate
the fair value of its fixed rate mortgages by discounted cash flow analysis,
based on estimated borrowing rates currently available to the Partnership.
 
3. MORTGAGES PAYABLE
 
     Mortgages payable, which are collateralized by substantially all investment
properties are summarized as follows:
 
<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                              -----------------
                                                               1996      1995
                                                              -------   -------
                                                                 (DOLLARS IN
                                                                 THOUSANDS)
<S>                                                           <C>       <C>
First mortgages with fixed interest rates ranging from 7.33%
  to 7.5%, due at various dates through 2003................  $24,042   $ 4,866
First and second mortgages with fixed interest rates of
  7.6%, maturing on November 15, 2002.......................   58,533    60,042
First and second mortgages with fixed interest rates at
  7.83%, due on October 15, 2003............................    1,727     1,746
Primarily first mortgages with fixed interest rates ranging
  from 8.00%-9.5%, due at various dates through 2006........       --    12,621
First mortgage with fixed interest rate at 10.375%, due on
  December 10, 2016.........................................    6,629     6,722
First mortgage with a variable interest rate due on June 10,
  2001......................................................       --     1,600
                                                              -------   -------
                                                               90,931    87,597
Less unamortized discounts..................................   (2,934)   (3,853)
                                                              -------   -------
          Total mortgage payable............................  $87,997   $83,744
                                                              =======   =======
</TABLE>
 
                                      F-45
<PAGE>   303
                        SHELTER PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The estimated fair values of the Partnerships' aggregate debt approximates
its carrying value. This estimate is not necessarily indicative of the amounts
the Partnerships may pay in actual market transactions.
 
     The Partnerships exercised an interest rate buy-down option for some of the
refinanced mortgage notes reducing the stated rate from 8.76% to 7.6% and 8.13%
to 7.83%. The fee for the interest rate reduction amounted to approximately
$4,731,000 and is being amortized as a loan discount by the interest method over
the life of the loan. The discount fee is reflected as a reduction of the
mortgage notes payable and increases the effective rate of the debt to 8.76% and
8.13%.
 
     During 1996 and 1994, Shelter I and Shelter V refinanced various
properties. As a result of the refinancings, the Partnerships recorded
extraordinary losses of approximately $633,000 (1996) and $87,000 (1994).
 
     Annual principal payments and maturities in all mortgages payable are as
follows (in thousands):
 
<TABLE>
<S>                                                          <C>
  1997.....................................................  $ 1,836
  1998.....................................................    1,985
  1999.....................................................    6,653
  2000.....................................................    2,208
  2001.....................................................    2,385
Thereafter.................................................   75,864
                                                             -------
                                                             $90,931
                                                             =======
</TABLE>
 
     The mortgages payable are nonrecourse and are secured by pledge of the
respective apartment properties and by pledge of revenues from the respective
apartment properties. Also, all of the mortgages require prepayment penalties if
repaid prior to maturity and prohibit resale of the properties subject to
existing indebtedness.
 
4. INCOME TAX
 
     The Partnerships have each received rulings from the Internal Revenue
Service that they will be classified as partnerships for Federal income tax
purposes. Accordingly, no provision for income taxes has been made in the
financial statements of the Partnerships. Taxable income or loss is reported in
the income tax returns of its partners.
 
     The following is a reconciliation between the Partnerships' reported
amounts and Federal tax basis of net assets and liabilities (in thousands):
 
<TABLE>
<S>                                                            <C>
Net assets as reported......................................   $26,077
Land and buildings..........................................    18,244
Accumulated depreciation....................................   (60,460)
Syndication fees............................................    20,272
Other.......................................................       688
                                                               -------
Net assets -- tax basis.....................................   $ 4,821
                                                               =======
</TABLE>
 
     The aggregate cost of the Real Estate for Federal income tax purposes for
1996 and 1995, respectively, is approximately $213 million and $209 million. The
accumulated depreciation taken for Federal income tax purposes for 1996 and
1995, respectively, is approximately $162 million and $152 million.
 
                                      F-46
<PAGE>   304
                        SHELTER PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
5. TRANSACTIONS WITH AFFILIATES
 
     The Partnerships have no employees and are dependent on the Corporate
General Partner and its affiliates for the management and administration of all
partnership activities. The partnership agreement provides for payments to
affiliates for services and as reimbursement of certain expenses incurred by
affiliates on behalf of the Partnerships. Balances and other transactions with
Insignia Financial Group, Inc. and affiliates in 1996, 1995 and 1994 are as
follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                             ------------------------
                                                              1996     1995     1994
                                                             ------   ------   ------
<S>                                                          <C>      <C>      <C>
Property management fees...................................  $1,901   $1,894   $1,804
Reimbursement for services of affiliates...................     779      630      568
Due to General Partners....................................     344      344      344
Due from General Partners..................................      10       10       10
Property insurance commissions.............................      --       --       86
Included in reimbursements for services of affiliates for
  construction oversight costs.............................      18       --       --
Legal fees.................................................      72       --       --
</TABLE>
 
     The Partnerships insure their properties under a master policy through an
agency and insurer unaffiliated with the Corporate General Partner. An affiliate
of the Corporate General Partner acquired, in the acquisition of a business,
certain financial obligations from an insurance agency which was later acquired
by the agent who placed the current year's master policy. The current agent
assumed the financial obligations to the affiliate of the Corporate General
Partner who receives payment on these obligations from the agent. The amount of
the Partnerships' insurance premiums accruing to the benefit of the affiliate of
the Corporate General Partner by virtue of the agent's obligations is not
significant.
 
     A director of Insignia Financial Group, Inc. is affiliated with a
professional legal association that received fees in connection with the 1996
refinancings. These fees totaled $36,000 and have been capitalized as loan
costs.
 
6. SALE OF PROPERTY
 
     On September 29, 1995, Shelter V sold Marble Hills Apartments to an
unaffiliated party. The buyer assumed the related mortgage notes payable. The
total outstanding balance on the mortgage notes payable was approximately
$3,344,000. The carrying amount of the property was approximately $2,412,000
after payment of closing costs. This disposition resulted in a gain of
approximately $1,296,000. Operating revenues and expenses from Marble Hills were
approximately $1,214,000 and $1,206,000 for 1995 and approximately $1,242,000
and $1,365,000 for 1994, respectively.
 
7. CASUALTIES AND CONDEMNATIONS
 
     The partnerships at times have casualty events which result in gains and
losses. During 1995 and 1994, the partnerships recorded $199,000 and $2,000 in
gains resulting from casualty events, respectively. In addition, the
partnerships recorded a gain of $14,000 in 1994 from the condemnation of land
for a road widening project.
 
8. CONTINGENCIES
 
  Tender Offer Litigation
 
     On or about April 26 and 27, 1995, six entities ("Affiliated Purchaser")
affiliated with the Partnerships commenced tender offers for limited partner
interests in six limited partnerships. On May 27, 1995, the Affiliated Purchaser
acquired 12,616 Units of the Partnerships pursuant to the tender offer. On or
about May 12, 1995, in the United States District Court for the District of
South Carolina, certain limited partners
                                      F-47
<PAGE>   305
                        SHELTER PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
of the Shelter Properties Partnerships commenced a lawsuit, on behalf of
themselves, on behalf of a putative class of plaintiffs, and derivatively on
behalf of the Partnerships, challenging the actions taken by defendants
(including Insignia, the acquiring entities and certain officers of Insignia) in
the management of the Shelter Properties Partnerships and in connection with the
tender offers and certain other matters.
 
     The plaintiffs alleged that, among other things: (i) the defendants
intentionally mismanaged the Partnerships and acted contrary to the limited
partners' best interests by prolonging the existence of the Partnerships in
order to perpetuate the revenues derived by Insignia (an affiliate of the
Corporate General Partner) and its affiliates from the Partnerships, (ii) the
defendants' actions reduced the demand for the Partnerships' limited partner
interests in the limited resale market by artificially depressing the trading
prices for limited partners' interests in order to create a favorable
environment for the tender offers; (iii) through the tender offers, the
acquiring entities sought to acquire effective voting control over the
Partnerships while paying highly inadequate prices; and (iv) the documents
disseminated to the class in connection with the tender offers contained false
and misleading statements and omissions of material facts concerning such issues
as the advantages to limited partners of tendering pursuant to the tender
offers, the true value of the interest, the true financial condition of the
Partnerships, the factors affecting the likelihood that properties owned by the
Partnerships will be sold or liquidated in the near future, the liquidity and
true value of the limited partner interests, the reasons for the limited
secondary market for limited partner interests, and the true nature of the
market for the underlying real estate assets owned by the Shelter Properties
Partnerships, all in violation of the Federal securities laws.
 
     On September 27, 1995, the parties entered into a stipulation to settle the
matter. The principal terms of the stipulation require supplemental payments to
tendering limited partners aggregating approximately $6 million to be paid by
the Affiliated Purchaser, waiver by the Shelter Properties Partnerships' general
partners of any right to certain proceeds from a sale or refinancing of the
Partnerships' properties; some restrictions on Insignia's ability to vote the
limited partner interests it acquired; payment of $1.25 million (which amount is
divided among the various partnerships and acquiring entities) for plaintiffs'
attorney fees and expenses in the litigation; and general releases of all the
defendants. Approximately $975,000 was paid by the Partnerships and was expensed
in 1995.
 
     On June 24, 1996, after notice to the class and a hearing on the fairness
and adequacy of the notice and the terms of settlement, the court orally
approved the settlement. The court signed the formal order on July 30, 1996. No
appeal was filed within thirty days after the court entered the formal order,
and the settlement became effective on August 30, 1996. The Affiliated Purchaser
made the payments to investors in accordance with the settlement in early
September 1996.
 
  General Contingencies
 
     Certain of the partnerships are subject to various legal proceedings and
claims arising in the ordinary course of business, some of which are covered by
insurance. Management of the partnerships believes the ultimate resolution of
these matters is not likely to have a material adverse effect on the combined
financial statements.
 
9. EVENT (UNAUDITED) SUBSEQUENT TO INDEPENDENT AUDITORS' REPORT
 
  Apartment Investment Management Company Merger
 
     On October 1, 1998 Insignia merged its national residential property
management operations, and its controlling interest in Insignia Properties
Trust, with Apartment Investment Management Company ("AIMCO"), a publicly traded
real estate investment trust. AIMCO now controls the General Partners of the
Shelter Properties Partnerships.
 
                                      F-48
<PAGE>   306
 
                                                                    SCHEDULE III
                        SHELTER PROPERTIES PARTNERSHIPS
 
                    REAL ESTATE AND ACCUMULATED DEPRECATION
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
 
                                                      INITIAL COST
                                                   -------------------       COST
                                                             BUILDINGS    CAPITALIZED
                                                                AND        (REMOVED)
                                                             PERSONAL    SUBSEQUENT TO
                                    ENCUMBRANCES    LAND     PROPERTY     ACQUISITION
                                    ------------   -------   ---------   -------------
                                                  (DOLLARS IN THOUSANDS)
       <S>                          <C>            <C>       <C>         <C>
       Carriage House
         Gastonia, North
         Carolina.................    $ 2,090      $   166   $  3,038       $   592
       Colony House Apartments
         Murfreesboro,
         Tennessee................      2,474          183      4,408         1,069
       Essex Park Apartments
         Columbia, South
         Carolina.................      3,318          473      7,406         1,820
       Foxfire Apartments
         Atlanta, Georgia.........      4,792          830      9,122           301
       Foxfire/Barcelona..........      5,916        1,191      9,998            86
         Durham, North Carolina...         --           --         --            --
       Heritage Pointe Apartments
         Rome, Georgia............      1,400          239      2,410           637
       Lake Johnson Mews
         Apartments
         Raleigh, North
         Carolina.................      4,350          338      6,725         1,031
       Milhopper Village
         Apartments
         Gainesville, Florida.....      2,700          239      4,305           949
       North River Village
         Apartments
         Atlanta, Georgia.........      1,727          336      4,085         1,187
       Nottingham Square
         Des Moines, Iowa.........      8,185        1,133      9,980         2,274
       Old Salem Apartments
         Charlottesville,
         Virginia.................      6,629          654     12,664         2,306
       Parktown Townhouses
         Deer Park, Texas.........      3,318        1,095      5,329         2,972
       Quail Hollow Apartments
         West Columbia, South
         Carolina.................      2,850          459      3,754         1,022
 
<CAPTION>
                                          GROSS AMOUNTS AT WHICH CARRIED AT
                                                  DECEMBER 31, 1996
                                    ---------------------------------------------
                                              BUILDINGS
                                                 AND
                                               RELATED
                                              PERSONAL               ACCUMULATED      DATE OF        DATE     DEPRECIABLE
                                     LAND     PROPERTY     TOTAL     DEPRECIATION   CONSTRUCTION   ACQUIRED   LIFE-YEARS
                                    -------   ---------   --------   ------------   ------------   --------   -----------
                                                                   (DOLLARS IN THOUSANDS)
       <S>                          <C>       <C>         <C>        <C>            <C>            <C>        <C>
       Carriage House
         Gastonia, North
         Carolina.................  $   166   $  3,630    $  3,796     $  1,906      1970-71       6/29/84     5-27
       Colony House Apartments
         Murfreesboro,
         Tennessee................      183      5,477       5,660        2,989      1970-72       10/30/81    5-36
       Essex Park Apartments
         Columbia, South
         Carolina.................      473      9,226       9,699        5,074       1973         10/29/81    5-36
       Foxfire Apartments
         Atlanta, Georgia.........      830      9,423      10,253        5,630      1969-71       7/19/83     5-29
       Foxfire/Barcelona..........    1,191     10,084      11,275        5,225       1973         3/28/85     5-29
         Durham, North Carolina...       --         --          --           --       1975         9/30/84     5-31
       Heritage Pointe Apartments
         Rome, Georgia............      239      3,047       3,286        2,218      1967-70       9/15/80     5-35
       Lake Johnson Mews
         Apartments
         Raleigh, North
         Carolina.................      338      7,756       8,094        3,907      1972-73       9/30/83     5-30
       Milhopper Village
         Apartments
         Gainesville, Florida.....      239      5,254       5,493        2,820      1970-76       11/22/83    5-29
       North River Village
         Apartments
         Atlanta, Georgia.........      336      5,272       5,608        2,909       1969         4/21/82     5-32
       Nottingham Square
         Des Moines, Iowa.........    1,133     12,254      13,387        6,083       1972         8/31/84     5-29
       Old Salem Apartments
         Charlottesville,
         Virginia.................      654     14,970      15,624        8,018      1969-71       8/25/83     5-28
       Parktown Townhouses
         Deer Park, Texas.........    1,095      8,301       9,396        5,725       1969          3/1/81     5-35
       Quail Hollow Apartments
         West Columbia, South
         Carolina.................      459      4,776       5,235        3,421       1973          9/1/80     5-34
</TABLE>
 
                                      F-49
<PAGE>   307
 
                                                                    SCHEDULE III
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
             REAL ESTATE AND ACCUMULATED DEPRECATION -- (CONTINUED)
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
 
                                                      INITIAL COST
                                                   -------------------       COST
                                                             BUILDINGS    CAPITALIZED
                                                                AND        (REMOVED)
                                                             PERSONAL    SUBSEQUENT TO
                                    ENCUMBRANCES    LAND     PROPERTY     ACQUISITION
                                    ------------   -------   ---------   -------------
                                                  (DOLLARS IN THOUSANDS)
       <S>                          <C>            <C>       <C>         <C>
       Raintree Apartments
         Anderson, South
         Carolina.................    $ 1,472      $   184   $  3,184       $   620
       River Reach
         Jacksonville, Florida....      7,693        1,872     10,854         1,418
       Rocky Creek
         Augusta, Georgia.........      2,268          168      3,821           486
       Signal Pointe Apartments
         Winter Park, Florida.....      4,399          535      8,062         2,515
       Stone Mountain West
         Apartments
         Stone Mountain,
         Georgia..................      3,000          210      3,408           988
       Tar River Estates
         Greenville, North
         Carolina.................      5,165          474      9,985         2,593
       The Lexington Apartments
         Sarasota, Florida........      3,740        1,102      6,620         1,965
       Village Garden
         Fort Collins, Colorado...      2,663          420      3,050           472
       Willowick Apartments
         Greenville, South
         Carolina.................      1,296          289      3,563           587
       Windsor Hills Apartments
         Blacksburg, Virginia.....      4,536          520      4,575         1,082
       Woodland Village Apartments
         Columbia, South
         Carolina.................      4,950          605      9,135         2,118
                                      -------      -------   --------       -------
                                      $90,931      $13,715   $149,481       $31,090
                                      =======      =======   ========       =======
 
<CAPTION>
                                          GROSS AMOUNTS AT WHICH CARRIED AT
                                                  DECEMBER 31, 1996
                                    ---------------------------------------------
                                              BUILDINGS
                                                 AND
                                               RELATED
                                              PERSONAL               ACCUMULATED      DATE OF        DATE     DEPRECIABLE
                                     LAND     PROPERTY     TOTAL     DEPRECIATION   CONSTRUCTION   ACQUIRED   LIFE-YEARS
                                    -------   ---------   --------   ------------   ------------   --------   -----------
                                                                   (DOLLARS IN THOUSANDS)
       <S>                          <C>       <C>         <C>        <C>            <C>            <C>        <C>
       Raintree Apartments
         Anderson, South
         Carolina.................  $   184   $  3,804    $  3,988     $  2,486      1972-74       4/30/81     5-38
       River Reach
         Jacksonville, Florida....    1,872     12,272      14,144        6,033       1971         1/30/85     5-27
       Rocky Creek
         Augusta, Georgia.........      168      4,307       4,475        1,946       1979         6/29/84     5-35
       Signal Pointe Apartments
         Winter Park, Florida.....      535     10,577      11,112        6,832       1970         6/30/81     5-37
       Stone Mountain West
         Apartments
         Stone Mountain,
         Georgia..................      210      4,396       4,606        3,076       1972         12/31/80    5-37
       Tar River Estates
         Greenville, North
         Carolina.................      474     12,578      13,052        6,861      1969-72       1/18/84     5-27
       The Lexington Apartments
         Sarasota, Florida........    1,102      8,585       9,687        4,247      1973-82       10/31/83    5-34
       Village Garden
         Fort Collins, Colorado...      420      3,522       3,942        1,607       1974          3/1/85     5-30
       Willowick Apartments
         Greenville, South
         Carolina.................      289      4,150       4,439        2,316       1974         6/30/82     5-32
       Windsor Hills Apartments
         Blacksburg, Virginia.....      520      5,657       6,177        4,237       1973          9/1/80     5-30
       Woodland Village Apartments
         Columbia, South
         Carolina.................      605     11,253      11,858        5,963       1974          9/1/83     5-30
                                    -------   --------    --------     --------
                                    $13,715   $180,571    $194,286     $101,529
                                    =======   ========    ========     ========
</TABLE>
 
                                      F-50
<PAGE>   308
 
                                                                    SCHEDULE III
 
                        SHELTER PROPERTIES PARTNERSHIPS
 
             REAL ESTATE AND ACCUMULATED DEPRECATION -- (CONTINUED)
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                              ------------------------------
                                                                1996       1995       1994
                                                              --------   --------   --------
                                                                      (IN THOUSANDS)
<S>                                                           <C>        <C>        <C>
Reconciliation of Real Estate
  Balance at beginning of year..............................  $190,881   $194,997   $191,886
     Property improvements..................................     3,594      4,392      3,670
     Disposal of property...................................      (189)      (655)      (559)
     Sale of apartment property.............................        --     (7,853)        --
                                                              --------   --------   --------
  Balance at end of year....................................  $194,286   $190,881   $194,997
                                                              ========   ========   ========
Reconciliation of Accumulated Depreciation
  Balance at beginning of year..............................  $ 94,084   $ 90,437   $ 83,428
     Additions charged to expense...........................     7,658      7,776      7,448
     Sale of apartment property.............................        --     (3,661)        --
     Disposal of property...................................      (213)      (468)      (439)
                                                              --------   --------   --------
  Balance at end of year....................................  $101,529   $ 94,084   $ 90,437
                                                              ========   ========   ========
</TABLE>
 
                                      F-51
<PAGE>   309
 
                          INDEPENDENT AUDITORS' REPORT
 
To the National Property Investors and
Century Properties Partnerships
Greenville, South Carolina
 
     We have audited the accompanying combined balance sheets of National
Property Investors and Century Properties Partnerships as of December 31, 1996
and December 31, 1995, and the related combined statements of operations,
statements of changes in partners' capital and statements of cash flows for each
of the three years in the period ended December 31, 1996, (see Note 1). Our
audit also included the supplemental schedule as of December 31, 1996. These
financial statements are the responsibility of the Partnerships' management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits 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 consolidated financial statements referred to above
present fairly, in all material respects, the combined financial position of
National Property Investors and Century Properties Partnerships as of December
31, 1996 and 1995, and the combined results of their operations and their cash
flows for each of the three years in the period ended December 31, 1996, in
conformity with generally accepted accounting principles. Also in our opinion,
the related supplemental schedule, when considered in relation to the basic
combined financial statements taken as a whole, presents fairly, in all material
respects, the information set forth therein.
 
                                            IMOWITZ KOENIG & CO. LLP
                                            Certified Public Accountants
 
New York, N.Y.
February 18, 1997
 
                                      F-52
<PAGE>   310
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
                            COMBINED BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                              -----------------------
                                                                 1996         1995
                                                              ----------   ----------
                                                              (DOLLARS IN THOUSANDS)
<S>                                                           <C>          <C>
Cash and cash equivalents...................................  $  44,080    $  34,735
Other assets................................................     24,757       17,956
Investment properties:
  Land......................................................     70,634       74,215
  Buildings and related personal property...................    590,209      595,812
                                                              ---------    ---------
                                                                660,843      670,027
  Less accumulated depreciation.............................   (312,410)    (298,586)
                                                              ---------    ---------
Net real estate.............................................    348,433      371,441
                                                              ---------    ---------
          Total assets......................................  $ 417,270    $ 424,132
                                                              =========    =========
 
                          LIABILITIES AND PARTNERS' CAPITAL
 
Liabilities:
  Accounts payable and other liabilities....................  $  13,947    $  10,305
  Distribution payable......................................     12,581           --
  Mortgage notes payable....................................    363,385      354,935
                                                              ---------    ---------
          Total liabilities.................................    389,913      365,240
Partners' capital (deficit):
  General partners..........................................    (37,669)     (36,877)
  Limited partners..........................................     65,026       95,769
                                                              ---------    ---------
          Total partners' capital...........................     27,357       58,892
                                                              ---------    ---------
          Total liabilities and partners' capital...........  $ 417,270    $ 424,132
                                                              =========    =========
</TABLE>
 
                  See accompanying notes and auditors' report.
 
                                      F-53
<PAGE>   311
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
                       COMBINED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                                                              ------------------------------
                                                                1996       1995       1994
                                                              --------   --------   --------
                                                                  (DOLLARS IN THOUSANDS)
<S>                                                           <C>        <C>        <C>
Revenue:
  Rental income.............................................  $111,867   $115,759   $112,563
  Other and interest income.................................     6,703      5,787      2,551
                                                              --------   --------   --------
          Total revenue.....................................   118,570    121,546    115,114
Expenses:
  Operating.................................................    63,107     63,802     61,615
  General and administrative................................     4,014      3,466      4,069
  Depreciation..............................................    22,464     23,551     24,382
  Interest..................................................    31,711     34,740     36,032
                                                              --------   --------   --------
          Total expenses....................................   121,296    125,559    126,098
Gain on sale of property....................................     3,638     13,756      1,580
Loss on sale of property....................................        --       (592)      (149)
Minority interest in joint venture..........................        --       (868)      (145)
Impairment loss.............................................        --         --       (500)
                                                              --------   --------   --------
Income (loss) before extraordinary item.....................       912      8,283    (10,198)
Extraordinary item -- early extinguishment of debt..........    (2,704)    (3,158)      (361)
                                                              --------   --------   --------
          Net (loss) income.................................  $ (1,792)  $  5,125   $(10,559)
                                                              ========   ========   ========
</TABLE>
 
                  See accompanying notes and auditors' report.
 
                                      F-54
<PAGE>   312
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
              COMBINED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL
 
<TABLE>
<CAPTION>
                                                      LIMITED
                                                    PARTNERSHIP   GENERAL    LIMITED
                                                       UNITS      PARTNERS   PARTNERS    TOTAL
                                                    -----------   --------   --------   --------
                                                               (DOLLARS IN THOUSANDS)
<S>                                                 <C>           <C>        <C>        <C>
Partners' (deficit) capital at December 31,
  1993............................................   1,012,492    $(35,774)  $109,589   $ 73,815
Net (loss) for the year ended December 31, 1994...          --        (835)    (9,724)   (10,559)
                                                     ---------    --------   --------   --------
Partners' (deficit) capital at December 31,
  1994............................................   1,012,492     (36,609)    99,865     63,256
Distributions payable to partners.................          --        (189)    (9,300)    (9,489)
Net (loss) income for the year ended December 31,
  1995............................................          --         (79)     5,204      5,125
                                                     ---------    --------   --------   --------
Partners' (deficit) capital at December 31,
  1995............................................   1,012,492     (36,877)    95,769     58,892
Distributions payable to partners.................          --        (595)   (29,148)   (29,743)
Net (loss) for the year ended December 31, 1996...          --        (197)    (1,595)    (1,792)
                                                     ---------    --------   --------   --------
Partners' (deficit) capital at December 31,
  1996............................................   1,012,492    $(37,669)  $ 65,026   $ 27,357
                                                     =========    ========   ========   ========
</TABLE>
 
                  See accompanying notes and auditors' report.
 
                                      F-55
<PAGE>   313
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
                       COMBINED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                              -------------------------------
                                                                1996        1995       1994
                                                              ---------   --------   --------
                                                                  (DOLLARS IN THOUSANDS)
<S>                                                           <C>         <C>        <C>
Operating activities
  Net (loss) income.........................................  $  (1,792)  $  5,125   $(10,559)
  Adjustments to reconcile net (loss) income to net cash
     provided by operating activities:
     Depreciation...........................................     22,464     23,551     24,382
     Amortization of discounts and loan costs...............      2,457      2,910      2,731
     Loss on disposal of property...........................         --        592        149
     Gain on disposal of property...........................     (3,638)   (13,756)    (1,580)
     Provision for doubtful receivables.....................         --         10         --
     Impairment loss........................................         --         --        500
     Minority interest in joint venture.....................         --        868        145
     Accrued interest added to note principal...............         --         81         29
     Deferred interest expense..............................         --         --         21
     Extraordinary item -- early extinguishment of debt.....      2,704      3,158        361
     Change in accounts:
       Other assets.........................................       (787)      (894)    (1,930)
       Accounts payable and other liabilities...............      4,621       (942)    (1,153)
                                                              ---------   --------   --------
          Net cash provided by operating activities.........     26,029     20,703     13,096
Investing activities
  Property improvements and replacements....................    (10,853)    (6,215)    (7,570)
  Restricted cash (increase) decrease.......................     (3,346)     1,563      1,343
  Net proceeds from sale of property........................     12,312     27,825      3,537
  Proceeds for cash investments.............................         --         --      1,879
  Proceeds from note receivable.............................         --         --         50
                                                              ---------   --------   --------
          Net cash (used in) provided by investing
            activities......................................     (1,887)    23,173       (761)
Financing activities
  Payments on mortgage notes payable........................     (5,898)    (5,748)    (7,857)
  Repayment of mortgage notes payable.......................   (133,054)   (82,470)   (79,491)
  Proceeds from long-term borrowings........................    147,032     79,643     74,100
  Loan costs................................................     (4,520)    (1,568)    (1,887)
  Debt extinguishment costs.................................     (1,195)    (1,766)        --
  Joint venture partner distributions.......................         --     (1,640)      (143)
  Payment of deferred interest payable......................         --       (456)        --
  Due to affiliate..........................................         --         --       (103)
  Repayment of note payable to affiliate of general
     partner................................................         --         --       (978)
  Distributions paid........................................    (17,162)    (9,489)        --
                                                              ---------   --------   --------
          Net cash used in financing activities.............    (14,797)   (23,494)   (16,359)
                                                              ---------   --------   --------
          Net increase (decrease) in cash and cash
            equivalents.....................................      9,345     20,382     (4,024)
Cash and cash equivalents at beginning of year..............     34,735     14,353     18,377
                                                              ---------   --------   --------
Cash and cash equivalents at end of year....................  $  44,080   $ 34,735   $ 14,353
                                                              =========   ========   ========
</TABLE>
 
                                      F-56
<PAGE>   314
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
                COMBINED STATEMENTS OF CASH FLOWS -- (CONTINUED)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                              -------------------------------
                                                                1996        1995       1994
                                                              ---------   --------   --------
                                                                  (DOLLARS IN THOUSANDS)
<S>                                                           <C>         <C>        <C>
Supplemental disclosure of cash flow information
  Cash paid for interest....................................  $  28,270   $ 32,842   $ 33,956
                                                              =========   ========   ========
Property improvements and replacements in notes payable.....  $      --   $     39   $     --
                                                              =========   ========   ========
Supplemental disclosure of non-cash investing and financing
  activities
Accrued interest added to note principal....................  $      --   $     --   $  2,139
                                                              =========   ========   ========
Replacement reserve holdback from proceeds of mortgage
  refinancing...............................................  $      --   $     --   $    225
                                                              =========   ========   ========
Property sales expenses accrued.............................  $      --   $     91   $     --
                                                              =========   ========   ========
Accrued interest assumed by purchaser of disposed
  property..................................................  $     667   $     --   $     --
                                                              =========   ========   ========
Mortgage note assumed by purchaser of disposed property.....  $   2,173   $     --   $     --
                                                              =========   ========   ========
Mortgage assumed on property sale...........................  $      --   $  7,359   $     --
                                                              =========   ========   ========
Accrued distribution to partners............................  $  12,581   $     --   $     --
                                                              =========   ========   ========
</TABLE>
 
                  See accompanying notes and auditors' report.
 
                                      F-57
<PAGE>   315
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
                     NOTES TO COMBINED FINANCIAL STATEMENTS
 
                               DECEMBER 31, 1996
 
1. ORGANIZATION AND BASIS OF PRESENTATION
 
  Organization of Insignia Properties Trust
 
     Insignia Properties Trust ("IPT" or the "Company") was formed in 1996 by
Insignia Financial Group, Inc. ("Insignia") for the purpose of acquiring and
owning interests in multifamily residential properties located throughout the
United States, including limited and general partner interests in partnerships
which hold such real estate properties. IPT has been organized in a manner that
will allow it to be taxed as a real estate investment trust ("REIT") under the
Internal Revenue Code of 1986 beginning with the taxable year ended December 31,
1996. Insignia and its affiliates have transferred to IPT equity interests in
entities comprising or controlling the general partners of 46 public real estate
limited partnerships (the "Equity Partnerships") in exchange for shares of
beneficial interest of IPT. IPT has also issued common shares to Insignia and
certain of its employees and affiliates in exchange for the payment of certain
obligations of IPT. Insignia also transferred its limited partnership interests
in certain limited partnerships, including National Property Investors and
Century Properties Partnerships (defined below), to Insignia Properties L.P.
("IPLP") in exchange for units in IPLP.
 
     IPT is 98% owned by Insignia, with the remainder of its shares owned by
Metropolitan Asset Enhancement L.P. (an affiliated company) or certain Insignia
employees. As of December 31, 1996, IPLP is owned 57% by IPT with Insignia
owning the remaining 43%.
 
  Basis of Presentation
 
     The accompanying combined financial statements include the assets,
liabilities and results of operations of 13 partnerships that Insignia acquired
limited (and general) partnership interests in January 1996 as a result of an
acquisition. Such combined group is herein referred to as the National Property
Investors ("NPI") and Century Properties Partnerships ("CP") (the
"Partnerships"). These Partnerships are part of the Equity Partnerships
mentioned above.
 
     The Partnerships included in these combined financial statements and IPLP's
limited partnership ownership interest in each, as of December 31, 1996, are as
follows:
 
<TABLE>
<CAPTION>
                                                               APPROXIMATE
                                                                OWNERSHIP
                        PARTNERSHIP                            PERCENTAGE
                        -----------                            -----------
<S>                                                            <C>
National Property Investors III ("NPI III").................       45%
National Property Investors 4 ("NPI 4").....................       54%
National Property Investors 5 ("NPI 5").....................       46%
National Property Investors 6 ("NPI 6").....................       44%
National Property Investors 7 ("NPI 7").....................       42%
National Property Investors 8 ("NPI 8").....................       37%
Century Properties Fund XIV ("CPF XIV").....................       41%
Century Properties Fund XV ("CPF XV").......................       40%
Century Properties Fund XVI ("CPF XVI").....................       37%
Century Properties Fund XVII ("CPF XVII")...................       34%
Century Properties Fund XVIII ("CPF XVIII").................       29%
Century Properties Fund XIX ("CPF XIX").....................       27%
Century Properties Growth Fund XXII ("CPGF XXII")...........       20%
</TABLE>
 
                                      F-58
<PAGE>   316
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The ownership interests in CPF XIV and CPF XV do not include commercial
properties. IPLP did not acquire an economic interest in those properties.
 
     The condensed, combined balance sheets of the commercial properties in CPF
XIV and CPF XV at December 31, 1996 and 1995; and the condensed, combined
statements of operations of the commercial properties in CPF XIV and CPF XV for
the years ended December 31, 1996, 1995 and 1994 are summarized as follows (in
thousands):
 
<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                              ----------------
                                                               1996     1995
                                                              ------   -------
<S>                                                           <C>      <C>
Total assets, primarily real estate at December 31, 1996 and
  1995......................................................  $6,733   $18,575
                                                              ======   =======
Liabilities, primarily mortgages payable....................  $4,176   $11,257
Equity......................................................   2,557     7,318
                                                              ------   -------
          Total liabilities and equity......................  $6,733   $18,575
                                                              ======   =======
</TABLE>
 
<TABLE>
<CAPTION>
                                                             YEARS ENDED DECEMBER 31,
                                                             ------------------------
                                                              1996     1995     1994
                                                             ------   ------   ------
<S>                                                          <C>      <C>      <C>
Total revenue..............................................  $1,889   $6,355   $5,960
Operating and other expenses...............................     715    2,476    2,452
Depreciation...............................................     549    1,483    1,437
Mortgage interest..........................................     543    1,770    1,967
                                                             ------   ------   ------
          Total expenses...................................   1,807    5,729    5,856
Gain on sale of property...................................   3,638    3,857       --
Loss on sale of property...................................      --     (592)      --
                                                             ------   ------   ------
Income before extraordinary item...........................   3,720    3,891      104
Extraordinary item:
  Loss on early extinguishment of debt.....................    (411)    (189)      --
                                                             ------   ------   ------
          Net income.......................................  $3,309   $3,702   $  104
                                                             ======   ======   ======
</TABLE>
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Combination
 
     The combined financial statements include all of the accounts of the
Partnerships and all majority owned partnerships. All significant
interpartnership balances have been eliminated.
 
  Use of Estimates
 
     The preparation of the financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
  Depreciation
 
     Depreciation is provided by the straight-line method over the estimated
lives of the rental properties and related personal property ranging from 5 to
39 years.
 
                                      F-59
<PAGE>   317
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Deferred Costs
 
     Deferred costs represent deferred financing costs and deferred leasing
commissions and are included in other assets. Deferred financing costs are
amortized as interest expense over the lives of the related loans, or expensed,
if financing is not obtained. Deferred leasing commissions are amortized over
the life of the applicable lease. Such amortization is charged to operating
expenses. As of December 31, 1996 and 1995, accumulated amortization of deferred
costs totaled approximately $2,548,000 and $3,933,000, respectively.
 
  Cash and Cash Equivalents
 
     The Partnership considers all highly liquid investments with an original
maturity of three months or less at the time of purchase to be cash equivalents.
At certain times, the amount of cash deposited at a bank may exceed the limit of
insured deposits.
 
  Leases
 
     The Partnerships generally lease apartment units for twelve-month terms or
less and lease commercial units with remaining lease terms of up to five years.
The Partnership recognized income as earned on its leases.
 
  Investment Properties
 
     The Partnerships have adopted FASB Statement No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of,"
which requires impairment losses to be recorded on long-lived assets used in
operations when indicators of impairment are present and the undiscounted cash
flows estimated to be generated by those assets are less than the assets'
carrying amount. For the year ended December 31, 1994, an adjustment for
impairment of value of $500,000 was recorded. The impairment loss is measured by
comparing the fair value of the asset to its carrying amount. The effect of
adoption was not material.
 
  Discounts on Notes Payable
 
     Discounts on notes payable are amortized using the straight-line method
over the remaining terms of the related notes.
 
  Income Taxes
 
     Taxable income or loss of the Partnerships is reported in the income tax
returns of its partners. Accordingly, no provision for income taxes is made in
the financial statements of the Partnerships.
 
     The tax basis of the Partnerships' assets and liabilities is approximately
$27.6 million less than the assets and liabilities as reported in the financial
statements.
 
     The aggregate cost of the Real Estate for Federal income tax purposes at
December 31, 1996 and 1995, respectively, is approximately $662.2 million and
$675.7 million. The accumulated depreciation taken for Federal income tax
purposes at December 31, 1996 and 1995, respectively, is approximately $453.1
million and $445.8 million.
 
  Advertising
 
     The Partnerships expense the costs of advertising as incurred.
 
                                      F-60
<PAGE>   318
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
  Fair Value
 
     The Partnerships have implemented FASB Statement No. 107, "Disclosure about
Fair Value of Financial Instruments," which requires disclosure of fair value
information about financial instruments for which it is practicable to estimate
that value. The carrying amount of the Partnerships' financial instruments
(except for long term debt) approximates fair value due to short-term
maturities. The fair value of the Partnerships long term debt after discounting
the scheduled loan payments to maturity, approximates its carrying balance.
 
  General and Limited Partner Allocations
 
     Profits, gains, losses and cash distributions are allocated between general
and limited partners in accordance with the provisions of the respective
partnership agreements. Upon sale of all properties and termination of a
Partnership, the general partners may be required to contribute certain funds to
the Partnership in accordance with the partnership agreement.
 
3.  MORTGAGES PAYABLE
 
     Mortgages payable, which are collateralized by substantially all investment
properties are summarized as follows:
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                              -----------------------
                                                                 1996         1995
                                                              ----------   ----------
                                                              (DOLLARS IN THOUSANDS)
<S>                                                           <C>          <C>
First mortgages with fixed interest rates ranging from 7.00%
  to 7.33%, due at various dates through June 2021..........   $103,685     $  6,963
First mortgages with fixed interest rates ranging from 7.50%
  to 8.00%, maturing at various dates through September
  2021......................................................    112,011       87,237
First and second mortgages with fixed interest rates ranging
  from 8.25% to 8.50%, due at various dates through July
  2005......................................................     54,538       72,346
First mortgages with fixed interest rates ranging from 8.56%
  to 9.00%, due at various dates through December 2008......     26,092       46,080
First mortgages with fixed interest rates ranging from 9.38%
  to 10.64%, due at various dates through February 2002.....     41,202       59,762
First and second mortgages with fixed and variable interest
  rates, due at various dates...............................     30,465       88,394
                                                               --------     --------
                                                                367,993      360,782
Less: unamortized discounts.................................     (4,608)      (5,847)
                                                               --------     --------
          Total mortgages payable...........................   $363,385     $354,935
                                                               ========     ========
</TABLE>
 
     The estimated fair value of the Partnerships' aggregate debt approximates
its carrying value. This estimate is not necessarily indicative of the amounts
the Partnerships may pay in actual market transactions.
 
     During 1996, 1995 and 1994, various properties were either sold or
refinanced, which resulted in the Partnerships' recording extraordinary losses
of approximately $2,704,000 (1996), $3,158,000 (1995) and $361,000 (1994). The
extraordinary losses were incurred as a result of writing off unamortized loan
costs and prepayment premiums related to the old mortgages.
 
                                      F-61
<PAGE>   319
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Annual principal payments and maturities for all mortgages payable as of
December 31, 1996 are as follows (in thousands):
 
<TABLE>
<S>                                                         <C>
1997......................................................  $ 22,201
1998......................................................     2,770
1999......................................................    24,317
2000......................................................    44,652
2001......................................................    45,368
Thereafter................................................   228,685
                                                            --------
                                                            $367,993
                                                            ========
</TABLE>
 
     The mortgages payable are nonrecourse and are secured by pledge of the
respective rental properties and by pledge of revenues from the respective
properties. Also, substantially all of the mortgages require prepayment
penalties if repaid prior to maturity and prohibit resale of the properties
subject to existing indebtedness.
 
     As of December 31, 1996, one partnership was in default of a mortgage of
approximately $4,557,000 and in January 1997 two mortgages amounting to
approximately $12,510,000 on the same property were in default. The combined
carrying value of these properties at December 31, 1996 was approximately
$11,230,000.
 
4. TRANSACTIONS WITH AFFILIATES
 
     The Partnerships have no employees and are dependent on the Corporate
General Partner and its affiliates for the management and administration of all
partnership activities. The partnership agreement provides for payments to
affiliates for services and as reimbursement of certain expenses incurred by
affiliates on behalf of the Partnerships.
 
     Transactions with Insignia, NPI, and affiliates of Insignia and NPI in
1996, 1995 and 1994 are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                             ------------------------
                                                              1996     1995     1994
                                                             ------   ------   ------
<S>                                                          <C>      <C>      <C>
Property management fees...................................  $5,687   $5,552   $4,758
Reimbursement for services of affiliates...................   2,326    2,701    2,658
Property insurance premiums................................      --    3,218    1,054
Included in reimbursements for services of affiliates for       146       --       --
  construction oversight costs.............................
Brokerage fees.............................................   1,057      181       --
Included in reimbursements for services of affiliates for        83       --       --
  loan costs...............................................
Partnership management fees................................       7       --       --
Management and operation fees paid to joint venture              --       --      104
  partners.................................................
Fees for real estate tax appeals...........................      --      135       14
Administrative fees........................................     185       --       --
</TABLE>
 
     For the period of January 19, 1996 to December 31, 1996, the Partnerships
insured their properties under a master policy through an agency and insurer
unaffiliated with the Corporate General Partner. An affiliate of the Corporate
General Partner acquired, in the acquisition of a business, certain financial
obligations from an insurance agency which was later acquired by the agent who
placed the current year's master policy. The current agent assumed the financial
obligations to the affiliate of the Corporate General Partner who receives
payment on these obligations from the agent. The amount of the Partnerships'
insurance premiums accruing
 
                                      F-62
<PAGE>   320
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
to the benefit of the affiliate of the Corporate General Partner by virtue of
the agent's obligations is not significant.
 
     Prior to January 19, 1996, the Partnerships paid insurance premiums to the
Corporate General Partner under a master insurance policy arranged for by the
Corporate General Partner.
 
     An affiliate of the Corporate General Partner has established a revolving
credit facility (the "Partnership Revolver"), with each NPI Partnership, to be
used to fund deferred maintenance and working capital needs of the NPI
Partnerships. The maximum draw available to the NPI Partnerships under the
Partnership Revolver is $2,800,000. In addition, an affiliate of the Corporate
General Partner has established a working capital line of credit for the CP
Partnerships of $150,000 per property. The maximum draw available to the CP
Partnerships under this credit facility was $5,100,000 at December 31, 1996.
There has been no loan activity or outstanding balances under these credit
facilities during the three year period ended December 31, 1996.
 
5. SALE OR DISPOSITION OF REAL ESTATE
 
     On January 5, 1997, CPF XV sold Phoenix Business Park to an unrelated third
party for a contract price of $5,600,000. After payment of the mortgage payable,
closing costs and related expenses, CPF XV received proceeds of approximately
$2,314,000. A gain of approximately $1,000 will be recognized in 1997 on
disposition of the property. A loss on early extinguishment of debt of
approximately $233,000 will be recognized in 1997.
 
     On April 26, 1996, CPF XIV sold The Oaks Shopping Center, located in
Beaumont, Texas. The buyer of the property assumed the outstanding debt on the
property, and CPF XIV received net proceeds of $1,000. As a result of the sale,
CPF XIV paid a disposition fee of approximately $16,000. For financial statement
purposes, the sale resulted in a gain of $65,000. The Partnership had recorded
an $883,000 provision for impairment in 1992.
 
     On March 7, 1996, CPF XIV sold Broadway Trade Center located in San
Antonio, Texas, to an unaffiliated third party for $3,825,000. After repayment
of the first, second and third mortgages totaling $1,591,000 and closing
expenses of $244,000, the net proceeds received by CPF XIV were $1,990,000. As a
result of the loans being paid in full, an extraordinary loss representing the
remaining unamortized mortgage discount of $315,000 was recorded. For financial
statement purposes, the sale resulted in a gain of $1,531,000. CPF XIV had
previously recorded a $1,421,000 provision for impairment of value for the
property.
 
     On February 12, 1996, CPF XIV sold University Square, located in Bozeman,
Montana, to an unaffiliated third party for $4,850,000. After closing expenses
of $231,000, the net proceeds received by CPF XIV were $4,619,000. For financial
statement purposes, the sale resulted in a gain of $1,416,000.
 
     On February 1, 1996, CPF XV sold Northbank Office Complex, located in
Eugene, Oregon, to an unaffiliated third party for $4,605,000. After payment of
the mortgage totaling approximately $2,443,000 and closing expenses, the net
proceeds received by CPF XV were approximately $1,992,000. For financial
statement purposes, the sale resulted in a gain on disposal of property of
approximately $881,000 and an extraordinary loss on early extinguishment of debt
of approximately $96,000.
 
     On December 29, 1995, CPF XV sold Farmers Lane Plaza, located in Santa
Rosa, California, to an unaffiliated third party for $8,750,000. Net proceeds to
CPF XV after payment of closing costs and existing debt were approximately
$3,995,000. The sale resulted in a gain of $3,618,000. Subsequent to the
closing, CPF XV paid $255,000 in additional costs in connection with the sale.
 
     On November 9, 1995, CPF XIV sold Wingren Plaza, located in Dallas, Texas,
for $1,000,000. After closing expenses of $68,000, the net proceeds received by
CPF XIV were $932,000. For financial statement
 
                                      F-63
<PAGE>   321
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
purposes, the sale resulted in a gain of $239,000. CPF XIV had previously
recorded a $1,901,000 provision for impairment of value in 1991.
 
     On October 6, 1995, CPF XIV sold Duck Creek Shopping Center, located in
Garland, Texas, for $2,250,000. After closing expenses of $138,000, the net
proceeds received by CPF XIV were $2,112,000. For financial statement purposes,
the sale resulted in a loss of $36,000.
 
     On September 12, 1995, CPF XIV sold Greenbriar Plaza Shopping Center,
located in Duncanville, Texas, for $1,050,000. After closing expenses of
$70,000, the net proceeds received by CPF XIV were $980,000. For financial
statement purposes, the sale resulted in a loss of $556,000.
 
     On April 12, 1995, an affiliate of CPF XV's joint venture partner in
Plumtree Apartments acquired, pursuant to a right of first refusal, Plumtree
Apartments for $12,500,000. After repayment of existing loans of $4,595,000, a
prepayment premium of $42,000 and closing expenses of $113,000, net proceeds
received by the joint venture were $7,750,000. CPF XV retained $6,229,000 of the
$7,750,000 proceeds in accordance with the joint venture agreement. For
financial statement purposes, the sale resulted in a gain of $7,866,000.
 
     On August 18, 1995, CPGF XXII sold Monterey Village Apartments to an
unaffiliated third party for $10,609,000. After assumption of the mortgage
balance of $7,359,000 and closing costs, CPGF XXII received net proceeds of
$2,926,000. For financial reporting purposes, the sale resulted in a gain on
disposition of $2,033,000. CPGF XXII also recognized an extraordinary loss on
extinguishment of debt of $217,000 in 1995 due to the write-off of unamortized
loan costs.
 
     On January 28, 1994, NPI 7 sold its California property to an unaffiliated
third party, subject to the first and second mortgages. NPI 7's share of the
proceeds after closing expenses was $2,866,000. The sale resulted in a gain of
approximately $105,000. NPI 7 had recorded a $525,000 provision for loss on
disposition of this property during 1992. Net cash proceeds to NPI 7, after
closing expenses and $239,000 to purchase the third mortgage, at a discount were
approximately $277,000.
 
     On January 28, 1994, NPI 8 sold its California property to an unaffiliated
third party, subject to the first and second mortgages. NPI 8's share of the
proceeds after closing expenses was $5,819,000. The sale resulted in a gain of
approximately $229,000. NPI 8 had recorded a $1,063,000 provision for loss on
disposition of this property during 1992. Net cash proceeds to NPI 8, after
deducting closing expenses and $486,000 to purchase the third mortgage at a
discount, were approximately $563,000.
 
     In February 1994, CPF XIX sold Plantation Forest Apartments, located in
Atlanta, Georgia for $2,450,000. After assumption of the existing loan of
$1,965,000 and costs of sale of $3,000, the proceeds to CPF XIX were $482,000.
The net loss on the sale was $149,000.
 
     In February 1994, CPF XVIII sold Plantation Ridge Apartments, located in
Marietta, Georgia for $15,353,000. The existing loans of $13,653,000 were
assumed by the buyer at the time of sale. After assumption of the existing loans
and costs of the sale of $210,000, proceeds to CPF XVIII were $1,490,000. For
financial statement purposes, CPF XVIII recorded a $1,246,000 gain on sale of
property.
 
6. OPERATING LEASES
 
     The Partnerships lease their residential properties under short-term
operating leases. Lease terms are generally one year or less in duration. The
Partnership expects that in the normal course of business, these leases will be
renewed or replaced by other leases. Commercial office property leases vary from
periods ranging up to five years. The future minimum rental payments to be
received under operating leases that have initial or
 
                                      F-64
<PAGE>   322
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
             NOTES TO COMBINED FINANCIAL STATEMENTS -- (CONTINUED)
 
remaining noncancelable lease terms in excess of one year as of December 31,
1996, are as follows (in thousands):
 
<TABLE>
<S>                                                            <C>
1997........................................................   $279
1998........................................................    230
1999........................................................    110
2000........................................................     73
2001........................................................     45
Thereafter..................................................     --
                                                               ----
                                                               $737
                                                               ====
</TABLE>
 
     For commercial leases with scheduled rental increases, rental income is
recognized on a straight-line basis over the life of the applicable leases.
There is no assurance that this income will continue at the same level when the
leases expire.
 
7. DISTRIBUTION PAYABLE
 
     NPI 6 declared a distribution of approximately $10,621,000 in 1996 payable
to its partners. The distribution was paid in January 1997, with approximately
$10,515,000 being paid to the limited partners and approximately $106,000 being
paid to the Corporate General Partner. The distribution was from net proceeds
from mortgage refinancings and cash from operations.
 
     NPI 7 declared a distribution of approximately $1,960,000 in 1996 payable
to its partners. The distribution was paid in January 1997, with approximately
$1,940,000 being paid to the limited partners and $20,000 being paid to the
Corporate General Partner.
 
                                      F-65
<PAGE>   323
 
                                                                    SCHEDULE III
        NATIONAL PROPERTY INVESTORS AND CENTURY PROPERTIES PARTNERSHIPS
 
                    REAL ESTATE AND ACCUMULATED DEPRECIATION
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
                                                                                 GROSS AMOUNTS AT WHICH CARRIED AT
                                                                                         DECEMBER 31, 1996
                                        INITIAL COST                       ---------------------------------------------
                                     -------------------       COST                  BUILDINGS
                                               BUILDINGS    CAPITALIZED                 AND
                                                  AND        (REMOVED)                RELATED
                                               PERSONAL    SUBSEQUENT TO             PERSONAL               ACCUMULATED
                      ENCUMBRANCES    LAND     PROPERTY     ACQUISITION     LAND     PROPERTY     TOTAL     DEPRECIATION
                      ------------   -------   ---------   -------------   -------   ---------   --------   ------------
                                                            (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>       <C>         <C>             <C>       <C>         <C>        <C>
Alpine Village
  Birmingham, AL....    $  2,100     $   359   $  3,515       $ 1,096      $   366   $  4,604    $  4,970     $  3,003
Autumn Run Apts.
  Naperville, IL....       9,100       1,462     14,957         1,003        1,458     15,964      17,422        6,080
Cherry Creek Gardens
  Apts. Englewood,
  CA................       7,766       1,320     11,879         1,448        1,320     13,327      14,647        6,419
Colony at Kenilworth
  Towson, MA........       7,985       1,306     13,187         4,881        1,366     18,008      19,374       12,291
Cooper's Pointe
  Apts. Charleston,
  SC................       4,217         513      6,696           191          510      6,890       7,400        2,954
Cooper's Pond Apts.
  Tampa, FL.........       7,771       1,476     12,505           216        1,315     12,882      14,197        6,593
Copper Mill Apts.
  Richmond, VA......       6,052         933      8,061           333          929      8,398       9,327        3,156
Creekside Apts.
  Denver, CO........       5,249       1,366      7,307         1,475        1,366      8,782      10,148        4,159
Fairview View I
  Apts. Baton Rouge,
  LA................       4,000         762      7,048         1,115          767      8,158       8,925        5,592
Fairway II Apts.
  Baton Rouge, LA...       4,200       1,086      8,788           474        1,094      9,254      10,348        4,642
Four Winds Apts.
  Overland, KA......       9,607       1,363     14,288           531        1,357     14,825      16,182        5,494
Gateway Park Dublin,
  CA................       1,518         484      1,135           176          487      1,308       1,795          684
Greenspoint Apts.
  Phoenix, AZ.......       8,900       2,165     11,199           426        2,141     11,649      13,790        5,007
Hampton Green Apts.
  Dallas, TX........       5,755       2,086      9,474           568        2,086     10,042      12,128        4,375
 
<CAPTION>
 
                        DATE OF        DATE     DEPRECIABLE
                      CONSTRUCTION   ACQUIRED   LIFE-YEARS
                      ------------   --------   -----------
                             (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>        <C>
Alpine Village
  Birmingham, AL....    1972         10/16/84    5-27.5
Autumn Run Apts.
  Naperville, IL....    1987          6/1/86      5-30
Cherry Creek Gardens
  Apts. Englewood,
  CA................    1979          9/1/82      5-30
Colony at Kenilworth
  Towson, MA........    1967         3/15/84     5-27.5
Cooper's Pointe
  Apts. Charleston,
  SC................    1986         11/1/85      5-30
Cooper's Pond Apts.
  Tampa, FL.........   1979-81        3/1/83      5-30
Copper Mill Apts.
  Richmond, VA......    1987          9/1/86      5-30
Creekside Apts.
  Denver, CO........    1974         10/1/82      5-30
Fairview View I
  Apts. Baton Rouge,
  LA................    1974         5/31/84     5-27.5
Fairway II Apts.
  Baton Rouge, LA...    1981         11/1/84     5-27.5
Four Winds Apts.
  Overland, KA......    1987          9/1/85      5-30
Gateway Park Dublin,
  CA................    1977         10/1/80      5-39
Greenspoint Apts.
  Phoenix, AZ.......    1986          2/1/84      6-30
Hampton Green Apts.
  Dallas, TX........    1986         12/1/85      5-30
</TABLE>
 
                                      F-66
<PAGE>   324
 
                                                                    SCHEDULE III
        NATIONAL PROPERTY INVESTORS AND CENTURY PROPERTIES PARTNERSHIPS
 
            REAL ESTATE AND ACCUMULATED DEPRECIATION -- (CONTINUED)
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
                                                                                 GROSS AMOUNTS AT WHICH CARRIED AT
                                                                                         DECEMBER 31, 1996
                                        INITIAL COST                       ---------------------------------------------
                                     -------------------       COST                  BUILDINGS
                                               BUILDINGS    CAPITALIZED                 AND
                                                  AND        (REMOVED)                RELATED
                                               PERSONAL    SUBSEQUENT TO             PERSONAL               ACCUMULATED
                      ENCUMBRANCES    LAND     PROPERTY     ACQUISITION     LAND     PROPERTY     TOTAL     DEPRECIATION
                      ------------   -------   ---------   -------------   -------   ---------   --------   ------------
                                                            (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>       <C>         <C>             <C>       <C>         <C>        <C>
Huntington Apts.
  Morrisville, NC...    $  3,583     $ 1,368   $  9,233       $   715      $ 1,376   $  9,940    $ 11,316     $  3,741
Lakeside Apts.
  Lisle, IL.........      17,200       2,087     15,363         3,378        2,093     18,735      20,828       13,439
Lakeside Place Apts.
  Houston, TX.......      14,636       3,659     21,481         5,025        3,659     26,506      30,165       13,811
The Landings Apts.
  Tampa, FL.........       2,282         504      4,702           519          504      5,221       5,725        2,706
The Lodge Apts.
  Denver, CO........       5,775       1,575      8,580         1,808        1,577     10,386      11,963        4,886
McMillan Place Apts.
  Dallas, TX........      12,510       2,399     10,826           548        2,427     11,346      13,773        5,072
Misty Woods Apts.
  Charlotte, NC.....       5,407         429      6,846           277          434      7,118       7,552        3,061
Northwood I & II
  Apts. Pensacola,
  FL................       5,000         478      7,919           991          483      8,905       9,388        4,616
Oak Run Apts.
  Dallas, TX........      10,626       6,218      8,713         1,762        6,218     10,475      16,693        5,037
Oakwood Village
  Orlando, FL.......       4,012         589      7,181         1,626          595      8,801       9,396        6,501
Overlook Apts. Salt
  Lake City, UT.....       8,049       1,082      8,225           701        1,078      8,930      10,008        4,053
Palisades Apts.
  Montgomery, AL....       4,899         970      8,448         2,444          976     10,886      11,862        8,515
Patchen Place Apts.
  Lexington, KY.....       3,000         706      6,409         1,286          714      7,687       8,401        4,765
Phoenix Business
  Park Atlanta, GA..       2,578         746      5,176         2,412          746      7,588       8,334        3,286
 
<CAPTION>
 
                        DATE OF        DATE     DEPRECIABLE
                      CONSTRUCTION   ACQUIRED   LIFE-YEARS
                      ------------   --------   -----------
                             (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>        <C>
Huntington Apts.
  Morrisville, NC...    1986          2/1/88      5-29
Lakeside Apts.
  Lisle, IL.........   1973-75       12/18/80    5-27.5
Lakeside Place Apts.
  Houston, TX.......   1976-78       12/1/80      5-30
The Landings Apts.
  Tampa, FL.........    1979          6/1/82      5-30
The Lodge Apts.
  Denver, CO........    1974         10/1/82      5-30
McMillan Place Apts.
  Dallas, TX........    1985          6/1/85      6-30
Misty Woods Apts.
  Charlotte, NC.....    1986          6/1/85      6-30
Northwood I & II
  Apts. Pensacola,
  FL................    1981          7/1/85     5-27.5
Oak Run Apts.
  Dallas, TX........    1979         11/1/83      5-30
Oakwood Village
  Orlando, FL.......    1973          8/3/82     5-27.5
Overlook Apts. Salt
  Lake City, UT.....    1984          7/1/83      5-30
Palisades Apts.
  Montgomery, AL....   1968-72       6/22/83     5-27.5
Patchen Place Apts.
  Lexington, KY.....    1971          7/1/85     5-27.5
Phoenix Business
  Park Atlanta, GA..    1980          5/1/82      5-39
</TABLE>
 
                                      F-67
<PAGE>   325
 
                                                                    SCHEDULE III
        NATIONAL PROPERTY INVESTORS AND CENTURY PROPERTIES PARTNERSHIPS
 
            REAL ESTATE AND ACCUMULATED DEPRECIATION -- (CONTINUED)
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
                                                                                 GROSS AMOUNTS AT WHICH CARRIED AT
                                                                                         DECEMBER 31, 1996
                                        INITIAL COST                       ---------------------------------------------
                                     -------------------       COST                  BUILDINGS
                                               BUILDINGS    CAPITALIZED                 AND
                                                  AND        (REMOVED)                RELATED
                                               PERSONAL    SUBSEQUENT TO             PERSONAL               ACCUMULATED
                      ENCUMBRANCES    LAND     PROPERTY     ACQUISITION     LAND     PROPERTY     TOTAL     DEPRECIATION
                      ------------   -------   ---------   -------------   -------   ---------   --------   ------------
                                                            (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>       <C>         <C>             <C>       <C>         <C>        <C>
The Pines Apts.
  Roanoke, VA.......    $  3,517     $   579   $  6,521       $   671      $   584   $  7,187    $  7,771     $  4,152
Pinetree Apts.
  Charlotte, NC.....       2,241         493      3,873         1,726          499      5,593       6,092        3,979
Place du Plantier
  Apts. Baton Rouge,
  LA................       3,800         840      7,773         1,197          844      8,966       9,810        6,204
Plantation Creek
  Apts. Atlanta,
  GA................      15,788       2,653     20,827         1,990        2,655     22,815      25,470       10,025
Preston Creek Apts.
  Dallas, TX........       4,500       2,118      5,793         1,211        2,107      7,015       9,122        3,466
Promontory Point
  Austin, TX........       2,840       1,690     10,129          (180)       1,595     10,044      11,639        4,294
Rocky Ridge
  Birmingham, AL....       1,450         323      2,972           966          330      3,931       4,261        2,670
Sandspoint Apts.
  Phoenix, AZ.......       9,887       2,124     13,158           761        2,146     13,897      16,043        6,058
Ski Lodge Apts.
  Montgomery, AL....       6,800         672     11,587         2,627          676     14,210      14,886        9,403
South Point Apts.
  Durham, NC........       4,600         859      7,686           570          863      8,252       9,115        4,197
St. Charleston
  Village Apts. Las
  Vegas, NV.........       6,210         751      7,322         1,423          743      8,753       9,496        4,920
Stoney Creek Apts.
  Dallas, TX........       6,995       1,803     12,509          (260)       1,689     12,363      14,052        5,461
Summerhill Apts.
  Dallas, TX........       2,930       1,003      6,069           830          999      6,903       7,902        3,600
Summerwalk Apts.
  Winter Park, FL...       4,557         427      6,347           561          431      6,904       7,335        4,806
 
<CAPTION>
 
                        DATE OF        DATE     DEPRECIABLE
                      CONSTRUCTION   ACQUIRED   LIFE-YEARS
                      ------------   --------   -----------
                             (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>        <C>
The Pines Apts.
  Roanoke, VA.......    1978          4/1/85     5-27.5
Pinetree Apts.
  Charlotte, NC.....    1974           7/80      5-27.5
Place du Plantier
  Apts. Baton Rouge,
  LA................    1974          5/1/84     5-27.5
Plantation Creek
  Apts. Atlanta,
  GA................   1977-78        6/1/84      5-30
Preston Creek Apts.
  Dallas, TX........    1979          8/1/81      5-30
Promontory Point
  Austin, TX........    1984         10/1/85      5-30
Rocky Ridge
  Birmingham, AL....    1973         10/16/84    5-27.5
Sandspoint Apts.
  Phoenix, AZ.......    1986          2/1/84      6-30
Ski Lodge Apts.
  Montgomery, AL....    1977         7/19/84     5-27.5
South Point Apts.
  Durham, NC........    1980          3/1/86     5-27.5
St. Charleston
  Village Apts. Las
  Vegas, NV.........    1980          9/1/79      5-30
Stoney Creek Apts.
  Dallas, TX........    1983          6/1/85      5-30
Summerhill Apts.
  Dallas, TX........    1979          8/1/81      5-30
Summerwalk Apts.
  Winter Park, FL...    1974         12/24/80    5-27.5
</TABLE>
 
                                      F-68
<PAGE>   326
 
                                                                    SCHEDULE III
        NATIONAL PROPERTY INVESTORS AND CENTURY PROPERTIES PARTNERSHIPS
 
            REAL ESTATE AND ACCUMULATED DEPRECIATION -- (CONTINUED)
                               DECEMBER 31, 1996
<TABLE>
<CAPTION>
                                                                                 GROSS AMOUNTS AT WHICH CARRIED AT
                                                                                         DECEMBER 31, 1996
                                        INITIAL COST                       ---------------------------------------------
                                     -------------------       COST                  BUILDINGS
                                               BUILDINGS    CAPITALIZED                 AND
                                                  AND        (REMOVED)                RELATED
                                               PERSONAL    SUBSEQUENT TO             PERSONAL               ACCUMULATED
                      ENCUMBRANCES    LAND     PROPERTY     ACQUISITION     LAND     PROPERTY     TOTAL     DEPRECIATION
                      ------------   -------   ---------   -------------   -------   ---------   --------   ------------
                                                            (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>       <C>         <C>             <C>       <C>         <C>        <C>
Sun River Apts.
  Tempe, AZ.........    $  6,278     $ 1,102   $  8,770       $   784      $ 1,090   $  9,566    $ 10,656     $  5,169
Sunrunner Apts. St.
  Petersburg, FL....       3,250         634      6,485           145          587      6,677       7,264        3,160
Torrey Pines Village
  Apts. Las Vegas,
  NV................       3,697         460      4,595         1,020          455      5,620       6,075        3,095
The Village Apts.
  Voorhees Township,
  NJ................      11,058       1,307     17,121         2,632        1,329     19,731      21,060       10,703
The Village in the
  Woods Apts.
  Cypress, TX.......       9,813       2,852     20,915        (9,497)       1,500     12,770      14,270        6,083
Village of Pennbrook
  Falls Township,
  PA................      19,300       1,972     18,245         5,505        1,980     23,742      25,722       17,026
Williamsburg on the
  Lake Indianapolis,
  IN................       7,400         590     14,822         2,808          594     17,626      18,220       10,174
Willow Park
  Altamonte Springs,
  FL................       2,968         567      5,218         1,073          574      6,284       6,858        4,533
Wood Creek Apts.
  Mesa, AZ..........      12,810       2,130     13,440           535        2,117     13,988      16,105        6,339
Wood Lake Apts.
  Atlanta, GA.......       7,649       1,206     10,980           612        1,206     11,592      12,798        5,299
Wood Ridge Apts.
  Atlanta, GA.......       8,883       1,632     12,321           781        1,632     13,102      14,734        5,875
Woods of Inverness
  Apts. Houston,
  TX................       5,205       1,292     10,305        (2,622)         905      8,070       8,975        4,167
Plantation Crossing
  Apts. Atlanta,
  GA................       5,182       1,062      7,576           417        1,062      7,993       9,055        3,614
                        --------     -------   --------       -------      -------   --------    --------     --------
                        $363,385     $72,632   $532,500       $55,711      $70,634   $590,209    $660,843     $312,410
                        ========     =======   ========       =======      =======   ========    ========     ========
 
<CAPTION>
 
                        DATE OF        DATE     DEPRECIABLE
                      CONSTRUCTION   ACQUIRED   LIFE-YEARS
                      ------------   --------   -----------
                             (DOLLARS IN THOUSANDS)
<S>                   <C>            <C>        <C>
Sun River Apts.
  Tempe, AZ.........    1981         11/1/80      5-30
Sunrunner Apts. St.
  Petersburg, FL....    1981          7/1/84      6-30
Torrey Pines Village
  Apts. Las Vegas,
  NV................    1980          9/1/79      5-30
The Village Apts.
  Voorhees Township,
  NJ................   1979-80        1/5/84     5-27.5
The Village in the
  Woods Apts.
  Cypress, TX.......    1983         10/1/82      5-30
Village of Pennbrook
  Falls Township,
  PA................    1973         12/15/81    5-27.5
Williamsburg on the
  Lake Indianapolis,
  IN................   1974-76        3/1/86      5-27
Willow Park
  Altamonte Springs,
  FL................    1973         12/13/82    5-27.5
Wood Creek Apts.
  Mesa, AZ..........    1985          5/1/84      5-30
Wood Lake Apts.
  Atlanta, GA.......    1983         12/1/83      5-30
Wood Ridge Apts.
  Atlanta, GA.......    1982          4/1/84      6-30
Woods of Inverness
  Apts. Houston,
  TX................    1981          7/1/82      5-30
Plantation Crossing
  Apts. Atlanta,
  GA................    1980           6/84       6-30
</TABLE>
 
                                      F-69
<PAGE>   327
 
                        NATIONAL PROPERTY INVESTORS AND
                        CENTURY PROPERTIES PARTNERSHIPS
 
            REAL ESTATE AND ACCUMULATED DEPRECIATION -- (CONTINUED)
                               DECEMBER 31, 1996
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                              ------------------------------
                                                                1996       1995       1994
                                                              --------   --------   --------
                                                                  (DOLLARS IN THOUSANDS)
<S>                                                           <C>        <C>        <C>
Reconciliation of Real Estate
  Balance at beginning of year..............................  $670,026   $700,437   $730,969
     Property improvements..................................    10,853      6,215      7,570
     Revaluation allowance on rental property sold..........        --         --     (3,073)
     Cost of rental property disposed of....................        --         --    (20,288)
     Disposal of properties.................................   (20,036)   (36,625)   (14,741)
                                                              --------   --------   --------
  Balance at end of year....................................  $660,843   $670,027   $700,437
                                                              ========   ========   ========
Reconciliation of Accumulated Depreciation
  Balance at beginning of year..............................  $298,584   $289,734   $278,090
     Additions charged to expense...........................    22,464     23,551     24,382
     Allowance for impairment of rental properties sold or
       disposed of..........................................        --         --     (7,445)
     Disposal of properties.................................    (8,638)   (14,699)    (5,293)
                                                              --------   --------   --------
  Balance at end of year....................................  $312,410   $298,586   $289,734
                                                              ========   ========   ========
</TABLE>
 
                                      F-70
<PAGE>   328
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                                 BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                               JUNE 30,     DECEMBER 31,
                                                                 1998           1997
                                                              -----------   ------------
                                                              (UNAUDITED)
<S>                                                           <C>           <C>
Notes Receivable:
Mortgage notes receivable...................................  $37,353,000   $39,347,000
Promissory notes receivable (primarily due from
  affiliates)...............................................    6,110,000     6,789,000
                                                              -----------   -----------
                                                               43,463,000    46,136,000
Less: Allowances for estimated losses.......................   (8,147,000)   (8,826,000)
                                                              -----------   -----------
                                                               35,316,000    37,310,000
Foreclosed real estate held for sale........................    8,755,000     4,521,000
Cash and cash equivalents...................................    6,248,000     3,947,000
Restricted cash.............................................      812,000            --
Accrued interest receivable.................................      604,000       654,000
Prepaid expenses and other assets...........................      130,000        98,000
                                                              -----------   -----------
          Total assets......................................  $51,865,000   $46,530,000
                                                              ===========   ===========
 
                          LIABILITIES AND SHAREHOLDERS' EQUITY
 
Liabilities:
Accounts payable and accrued expenses.......................  $   429,000   $   588,000
Mortgage note payable.......................................    4,525,000            --
                                                              -----------   -----------
          Total liabilities.................................    4,954,000       588,000
                                                              -----------   -----------
Shareholders' equity:
Class A Shares (2,617,000 issued and outstanding, $1.00 par
  value, unlimited shares authorized).......................    2,617,000     2,617,000
Class B Shares (1,675,113 issued and outstanding, $.01
  value, unlimited shares authorized).......................       14,000        14,000
Additional paid-in capital..................................   50,199,000    50,199,000
Accumulated distributions in excess of cumulative net
  income....................................................   (5,919,000)   (6,888,000)
                                                              -----------   -----------
          Total shareholders' equity........................   46,911,000    45,942,000
                                                              -----------   -----------
          Total liabilities and shareholders' equity........  $51,865,000   $46,530,000
                                                              ===========   ===========
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-71
<PAGE>   329
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                            STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                 THREE MONTHS ENDED         SIX MONTHS ENDED
                                                      JUNE 30,                  JUNE 30,
                                               -----------------------   -----------------------
                                                  1998         1997         1998         1997
                                               ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>
REVENUE:
Interest income..............................  $  967,000   $1,357,000   $1,939,000   $2,525,000
Rental income, net...........................     275,000       32,000      361,000       99,000
Gain from sale of real property..............          --       28,000           --       28,000
Recovery of bad debts........................     679,000      341,000      679,000      341,000
                                               ----------   ----------   ----------   ----------
          Total revenue......................   1,921,000    1,758,000    2,979,000    2,993,000
                                               ----------   ----------   ----------   ----------
COSTS AND EXPENSES:
General and administrative...................     247,000      283,000      302,000      618,000
Amortization.................................      13,000       13,000       33,000       31,000
                                               ----------   ----------   ----------   ----------
          Total costs and expenses...........     260,000      296,000      335,000      649,000
                                               ----------   ----------   ----------   ----------
NET INCOME...................................  $1,661,000   $1,462,000   $2,644,000   $2,344,000
                                               ==========   ==========   ==========   ==========
NET INCOME PER CLASS A SHARE.................  $     0.63   $     0.55   $     1.00   $     0.89
                                               ==========   ==========   ==========   ==========
CASH DISTRIBUTIONS PER CLASS A SHARE.........  $     0.32   $     0.24   $     0.64   $     0.46
                                               ==========   ==========   ==========   ==========
WEIGHTED AVERAGE CLASS A SHARES
  OUTSTANDING................................   2,617,000    2,617,000    2,617,000    2,617,000
                                               ==========   ==========   ==========   ==========
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-72
<PAGE>   330
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                        ACCUMULATED
                                                                       DISTRIBUTIONS
                                                                            IN
                                                                         EXCESS OF
                                                         ADDITIONAL     CUMULATIVE
                                   CLASS A     CLASS B     PAID-IN          NET
                                    SHARES     SHARES      CAPITAL        INCOME          TOTAL
                                  ----------   -------   -----------   -------------   -----------
<S>                               <C>          <C>       <C>           <C>             <C>
Balance at December 31, 1997....  $2,617,000   $14,000   $50,199,000    $(6,888,000)   $45,942,000
Distributions paid to Class A
  Shareholders..................          --        --            --     (1,675,000)    (1,675,000)
Net income......................          --        --            --      2,644,000      2,644,000
                                  ----------   -------   -----------    -----------    -----------
Balance at June 30, 1998........  $2,617,000   $14,000   $50,199,000    $(5,919,000)   $46,911,000
                                  ==========   =======   ===========    ===========    ===========
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-73
<PAGE>   331
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                            STATEMENTS OF CASH FLOW
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS ENDED JUNE 30,
                                                              --------------------------
                                                                  1998          1997
                                                              ------------   -----------
<S>                                                           <C>            <C>
Cash flows from operating activities:
Net income..................................................  $  2,644,000   $ 2,344,000
  Adjustments to reconcile net income to cash flows from
     operating activities:
     Gain from sale of real estate..........................            --       (28,000)
     Recovery of bad debt...................................      (679,000)     (341,000)
     Interest income in exchange for notes receivable.......            --      (864,000)
     Amortization of loan fees..............................        33,000        31,000
     Decrease (increase) in interest receivable.............        50,000      (135,000)
     Decrease (increase) in prepaid expenses and other
      assets................................................       (40,000)       24,000
     Decrease in accounts payable and accrued expenses......      (459,000)     (120,000)
     Increase (decrease) in unearned loan fee income........       (16,000)       66,000
                                                              ------------   -----------
          Cash flows from operating activities..............     1,533,000       977,000
                                                              ------------   -----------
Cash flows from investing activities:
     Funding of notes receivable............................   (10,365,000)   (9,850,000)
     Principal collections of notes receivable..............    12,672,000     2,604,000
     Proceeds from sale of real property....................            --       613,000
     Improvements and replacements to real property held for
      sale..................................................       (25,000)           --
     Proceeds from foreclosure of real estate...............       161,000            --
                                                              ------------   -----------
          Cash flows from investing activities..............     2,443,000    (6,633,000)
                                                              ------------   -----------
Cash flows from financing activities:
     Distributions to Class A Shareholders..................    (1,675,000)   (1,204,000)
                                                              ------------   -----------
          Cash flows used in financing activities...........    (1,675,000)   (1,204,000)
                                                              ------------   -----------
Increase (decrease) in cash and cash equivalents............     2,301,000    (6,860,000)
Cash and cash equivalents
     At beginning of period.................................     3,947,000     9,789,000
                                                              ------------   -----------
     At end of period.......................................  $  6,248,000   $ 2,929,000
                                                              ============   ===========
Schedule of noncash financing and investing activities:
  Assumption of first mortgage loan payable.................  $  4,525,000   $        --
  Conversion of second mortgage receivable to real
     property...............................................       380,000            --
  Deed-in-lieu of foreclosure, real property................     4,369,000            --
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-74
<PAGE>   332
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                         NOTES TO FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
     NOTE 1 -- The accompanying financial statements have not been audited by
independent certified accountants, but in the opinion of management, all of the
adjustments necessary to present fairly the financial position of Angeles
Mortgage Investment Trust (the "Trust") and the results of its operations and
its cash flows at the dates and for the periods indicated have been included.
Certain prior year amounts have been reclassified to conform to current year
classifications.
 
     The accompanying financial statements have been prepared in conformity with
generally accepted accounting principles for interim financial information and
with the instructions to Form 10-Q and Article 10 of Treasury Regulation S-X.
Accordingly they do not include all the information and footnotes required by
generally accepted accounting principals for complete financial statements.
 
     Operating results for the three and six month periods ended June 30, 1998
are not indicative of the results that may be expected for the year ending
December 31, 1998.
 
     For further information, refer to the financial statements and notes
thereto included in the Trust's annual report on Form 10-K for the year ended
December 31, 1997.
 
     NOTE 2 -- The net income per Class A Share was based on 2,617,000 weighted
average Class A Shares outstanding during the three and six months ended June
30, 1998 and 1997, after deduction of the 1% interest for Class B Shares.
 
     NOTE 3 -- In May 1998 the Trust's $5 million line of credit was renewed
through October 1998 with the ability to extend the line of credit through April
1999 at the Trust's option. The line of credit requires monthly interest only
payments based upon prime plus  1/2% and a $12,500 commitment fee paid
quarterly. During the three and six months ended June 30, 1998, the Trust did
not draw on the line of credit.
 
     NOTE 4 -- During the second quarter ended June 30, 1998 the Trust received
cash proceeds of approximately $842,000, from the loan referred to by the Trust
as "Northprior." In June, the Trust recorded a recovery of bad debt in the
amount of $679,000 for which an allowance for estimated loss had been previously
established and recorded $163,000 in interest income. The Trust may receive a
minimal amount of additional proceeds from the Northprior loan from excess
amounts, if any, held in an escrow account to remediate environmental problems
at the property.
 
     NOTE 5 -- In December 1997, the Trust purchased a second mortgage loan for
$380,000 on a 186-unit apartment complex, Silver Ridge Apartments, located in
Maplewood, Minnesota. The Silver Ridge second mortgage has an interest rate of
10% and default rate of 12% and matured December 31, 1997. In addition, during
1997 the Trust obtained judgement liens against the Silver Ridge Apartments
property based upon recourse provisions on other Trust loans. Through a
judgement lien, the Trust foreclosed on the property in October 1997 subject to
a twelve-month redemption period. On January 30, 1998, the Trust received title
to Silver Ridge Apartments through deed-in-lieu of foreclosure as a result of
provisions in the second mortgage held by the Trust. In connection with taking
title to Silver Ridge Apartments the Trust assumed a first trust deed mortgage
from a third party in the amount of $4,525,000. This first mortgage provides for
a variable interest rate not to exceed 12%, interest only paid monthly, with a
current interest rate of 4% per annum. The loan matures in July 2023.
 
     In addition, the Trust assumed control of restricted cash relating to
Silver Ridge Apartments with a balance of $812,000 as of June 30, 1998. The
restricted cash balance is comprised of approximately $457,000, held by the
first mortgage lender in escrow for: principal $310,000; interest of $62,000;
real estate taxes and insurance $60,000; and processing and other fees of
$25,000. The remaining $355,000 relates to funds for capital improvements and
tenant security deposits.
 
                                      F-75
<PAGE>   333
 
               REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
To the Board of Trustees of
Angeles Mortgage Investment Trust
 
     We have audited the accompanying balance sheets of Angeles Mortgage
Investment Trust (the "Trust") as of December 31, 1997 and 1996, and the related
statements of operations, changes in shareholders' equity and cash flows for
each of the three years in the period ended December 31, 1997. We have also
audited schedules III and IV. These financial statements and schedules are the
responsibility of the Trust's management. Our responsibility is to express an
opinion on the 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 and schedules are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements and
schedules. An audit also includes assessing the accounting principles used and
significant estimates made by the Trust's management, as well as evaluating the
overall presentation of the financial statements and schedules. We believe that
our audits provide a reasonable basis for our opinion.
 
     At December 31, 1997, 50 percent of the Trust's notes receivable are due
from partnerships which affiliates of Insignia Financial Group, Inc.
("Insignia") are the general partner. As discussed in Note 10, the Trust and an
Insignia affiliate (Insignia Properties Trust) have executed a merger agreement
subject to the approval of the Trust shareholders. If the merger is approved,
the Trust's business activities as it relates to these related party notes
receivable may be impacted due to overlapping management.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of the Trust at December 31,
1997 and 1996, and the results of its operations and its cash flows for each of
the three years in the period ended December 31, 1997, in conformity with
generally accepted accounting principles.
 
     Also, in our opinion the schedules present fairly, in all material
respects, the information set forth therein.
 
BDO Seidman, LLP
 
Dallas, Texas
January 15, 1998
 
                                      F-76
<PAGE>   334
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                                 BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                             DECEMBER 31,
                                                                      --------------------------
                                                          NOTES          1997           1996
                                                       ------------   -----------   ------------
<S>                                                    <C>            <C>           <C>
Notes receivable.....................................       2,3,5,6
  Mortgage notes receivable, (including $16,344,000
     and $16,791,000 due from affiliates in 1997 and
     1996)...........................................                 $39,347,000   $ 26,043,000
  Promissory notes receivable, (including $6,714,000
     and $10,650,000 due from affiliates in 1997 and
     1996)...........................................                   6,789,000     14,175,000
                                                                      -----------   ------------
                                                                       46,136,000     40,218,000
  Allowance for estimated losses.....................                  (8,826,000)   (12,100,000)
                                                                      -----------   ------------
                                                                       37,310,000     28,118,000
Foreclosed real estate held for sale.................             4     4,521,000      5,070,000
Cash and cash equivalents............................                   3,947,000      9,789,000
Accrued interest receivable..........................                     654,000        174,000
Prepaid expenses and other...........................                      98,000        224,000
                                                                      -----------   ------------
          Total assets...............................                 $46,530,000   $ 43,375,000
                                                                      ===========   ============
 
LIABILITIES AND SHAREHOLDERS' EQUITY
 
Liabilities:
  Accounts payable and accrued expenses..............                 $   588,000   $    287,000
                                                                      -----------   ------------
          Total liabilities..........................                     588,000        287,000
                                                                      -----------   ------------
Commitments and contingencies........................  1,2,3,4,6,10            --             --
Shareholders' equity:................................           8,9
  Class A Shares (2,617,000 in 1997 and 1996, issued
     and outstanding, $1.00 par value, unlimited
     shares authorized)..............................                   2,617,000      2,617,000
  Class B Shares (1,675,113 issued and outstanding,
     $.01 value, unlimited shares authorized)........                      14,000         14,000
  Additional paid-in capital.........................                  50,199,000     50,199,000
  Accumulated distributions in excess of cumulative
     net income......................................                  (6,888,000)    (9,742,000)
                                                                      -----------   ------------
          Total shareholders' equity.................                  45,942,000     43,088,000
                                                                      -----------   ------------
          Total liabilities and shareholders'
            equity...................................                 $46,530,000   $ 43,375,000
                                                                      ===========   ============
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-77
<PAGE>   335
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                YEARS ENDED DECEMBER 31,
                                                          -------------------------------------
                                                             1997         1996         1995
                                                          ----------   ----------   -----------
<S>                                                       <C>          <C>          <C>
REVENUE:
Interest income (including $2,954,000, $2,405,000, and
  $1,710,000 from affiliates in 1997, 1996 and 1995,
  respectively).........................................  $5,109,000   $6,419,000   $ 3,017,000
Rental income...........................................     266,000      321,000        96,000
Gain from sale of real property.........................      80,000      184,000       435,000
Recovery of bad debt from Angeles Corporation
  settlement............................................          --           --    12,844,000
Recovery of other bad debts.............................   1,744,000    3,126,000     3,110,000
                                                          ----------   ----------   -----------
          Total revenue.................................   7,199,000   10,050,000    19,502,000
                                                          ----------   ----------   -----------
COSTS AND EXPENSES:
Property operating expenses.............................      56,000      180,000       262,000
Loss from sale of real property.........................          --           --         3,000
Interest expense to bank................................          --           --       227,000
Legal expenses..........................................     393,000     (257,000)      851,000
General and administrative..............................     958,000      858,000       835,000
Amortization............................................      63,000       44,000        35,000
Income taxes............................................     180,000      139,000            --
                                                          ----------   ----------   -----------
          Total costs and expenses......................   1,650,000      964,000     2,213,000
                                                          ----------   ----------   -----------
INCOME BEFORE EXTRAORDINARY ITEM........................   5,549,000    9,086,000    17,289,000
EXTRAORDINARY ITEM -- Debt forgiveness..................          --           --     1,844,000
                                                          ----------   ----------   -----------
NET INCOME..............................................  $5,549,000   $9,086,000   $19,133,000
                                                          ==========   ==========   ===========
PER CLASS A SHARE:
Net income before extraordinary.........................  $     2.10   $     3.33   $      5.77
Extraordinary item......................................          --           --          0.61
                                                          ----------   ----------   -----------
Net income..............................................  $     2.10   $     3.33   $      6.38
                                                          ==========   ==========   ===========
Cash distributions......................................  $     1.03   $     0.52   $        --
                                                          ==========   ==========   ===========
Weighted average Class A Shares.........................   2,617,000    2,704,375     2,968,532
                                                          ==========   ==========   ===========
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-78
<PAGE>   336
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                 STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
                  YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995
 
<TABLE>
<CAPTION>
                                                                       ACCUMULATED
                                                                      DISTRIBUTIONS
                                                                            IN
                                                        ADDITIONAL      EXCESS OF
                                  CLASS A     CLASS B     PAID-IN     CUMULATIVE NET
                                   SHARES     SHARES      CAPITAL         INCOME          TOTAL
                                 ----------   -------   -----------   --------------   -----------
<S>                              <C>          <C>       <C>           <C>              <C>
Balance at January 1, 1995.....  $3,394,000   $14,000   $55,656,000    $(36,554,000)   $22,510,000
Class A Shares received from
  Angeles Corporation
  settlement...................    (567,000)       --    (3,687,000)             --     (4,254,000)
Purchase of Class B Share
  Option.......................          --        --      (250,000)             --       (250,000)
Net income.....................          --        --            --      19,133,000     19,133,000
                                 ----------   -------   -----------    ------------    -----------
Balance at December 31, 1995...   2,827,000    14,000    51,719,000     (17,421,000)    37,139,000
Purchase of Class A Shares.....    (210,000)       --    (1,520,000)             --     (1,730,000)
Net income.....................          --        --            --       9,086,000      9,086,000
Cash distributions.............          --        --            --      (1,407,000)    (1,407,000)
                                 ----------   -------   -----------    ------------    -----------
Balance at December 31, 1996...   2,617,000    14,000    50,199,000      (9,742,000)    43,088,000
Net income.....................          --        --            --       5,549,000      5,549,000
Cash distributions.............          --        --            --      (2,695,000)    (2,695,000)
                                 ----------   -------   -----------    ------------    -----------
Balance at December 31, 1997...  $2,617,000   $14,000   $50,199,000    $ (6,888,000)   $45,942,000
                                 ==========   =======   ===========    ============    ===========
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-79
<PAGE>   337
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                              YEARS ENDED DECEMBER 31,
                                                      -----------------------------------------
                                                          1997          1996           1995
                                                      ------------   -----------   ------------
<S>                                                   <C>            <C>           <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income..........................................  $  5,549,000   $ 9,086,000     19,133,000
ADJUSTMENTS TO RECONCILE NET INCOME TO CASH FLOWS
  FROM OPERATING ACTIVITIES:
Net gain from sale of real property.................       (80,000)     (184,000)      (432,000)
Amortization........................................        63,000        44,000         35,000
Recovery of bad debt................................    (1,744,000)   (3,126,000)   (15,954,000)
Interest income in exchange of notes receivable or
  real property.....................................      (864,000)   (3,708,000)      (501,000)
Extraordinary gain..................................            --            --     (1,844,000)
Decrease (increase) in interest receivable..........      (480,000)       87,000       (108,000)
Decrease (increase) in prepaid expenses and other...        64,000       215,000       (326,000)
(Decrease) increase in accounts payable and accrued
  expenses..........................................       301,000        94,000        (61,000)
Increase (decrease) in unearned loan fee income.....       115,000        56,000        (38,000)
                                                      ------------   -----------   ------------
Cash flows from (used in) operating activities......     2,924,000     2,564,000        (96,000)
                                                      ------------   -----------   ------------
CASH FLOWS FROM INVESTING ACTIVITIES:
Cost of foreclosed real estate......................       (37,000)           --       (355,000)
Funding of notes receivable.........................   (14,251,000)   (2,968,000)            --
Principal collections of notes receivable...........     7,552,000    10,256,000      9,056,000
Proceeds from sale of real estate...................       665,000     1,845,000      1,952,000
Investment in securities............................            --      (979,000)            --
Principal collections of investment in securities...            --       979,000             --
                                                      ------------   -----------   ------------
Cash flows from (used in) investing activities......    (6,071,000)    9,133,000     10,653,000
                                                      ------------   -----------   ------------
CASH FLOWS FROM FINANCING ACTIVITIES:
Draw on bank line of credit.........................            --       430,000             --
Repayment of bank line of credit....................            --      (430,000)    (3,500,000)
Repayment of cash advances from affiliate
  partnerships......................................            --            --     (6,682,000)
Purchase of Class B share option....................            --            --       (250,000)
Distributions to shareholders.......................    (2,695,000)   (1,407,000)            --
Purchase of Class A shares..........................            --    (1,730,000)            --
                                                      ------------   -----------   ------------
Cash flows used in financing activities.............    (2,695,000)   (3,137,000)   (10,432,000)
                                                      ------------   -----------   ------------
Increase (decrease) in cash and cash equivalents....    (5,842,000)    8,560,000        125,000
Cash and cash equivalents:
  At beginning of period............................     9,789,000     1,229,000      1,104,000
                                                      ------------   -----------   ------------
  At end of period..................................  $  3,947,000   $ 9,789,000   $  1,229,000
                                                      ============   ===========   ============
Supplemental operating cash flow disclosure:
          Cash received for interest................  $  3,765,000   $ 2,798,000   $  2,213,000
          Cash paid for interest....................            --            --        312,000
Schedule of noncash financing and investing
  activities:
  Carrying value of real estate in satisfaction of
     notes receivable with carrying values of
     $2,622,000 in 1996 and $3,580,000 in 1995......  $         --   $ 2,019,000   $  3,969,000
  Mortgage notes receivable from sale of real
     estate.........................................            --            --        700,000
  Restructuring of past due interest into notes
     receivable.....................................            --     2,625,000      1,914,000
  Notes receivable from lawsuit settlement..........            --        75,000             --
  Recovery of Class A stock in connection with
     Angeles Settlement.............................            --            --      4,254,000
  Write-off of fully reserved note receivable.......     1,530,000            --             --
</TABLE>
 
    The accompanying notes are an integral part of the financial statements.
 
                                      F-80
<PAGE>   338
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                         NOTES TO FINANCIAL STATEMENTS
 
NOTE 1 -- ORGANIZATION, BUSINESS ACTIVITIES AND SIGNIFICANT EVENTS
 
     Angeles Mortgage Investment Trust ("AMIT" or the "Trust") is an
unincorporated California business trust, which was organized to qualify as a
REIT for federal income tax purposes. AMIT was originally organized as a
publicly held limited partnership that began offering limited partnership units
on August 18, 1986 and commenced operations on July 9, 1987. In January 1989,
the holders of a majority of the limited partnership units elected to transfer
all of the partnership's assets to AMIT. Presently AMIT's capital structure
consists of 2,617,000 outstanding AMIT Class A Shares and 1,675,113 outstanding
AMIT Class B Shares. The AMIT Class A Shares are registered under the Exchange
Act and listed on the American Stock Exchange under the symbol "ANM." Each AMIT
Class A Share and each AMIT Class B Share is entitled to one vote with respect
to all matters put before AMIT's shareholders.
 
     Angeles Funding Corporation ("AFC"), a wholly owned subsidiary of Angeles
Corporation ("Angeles") served as advisor to AMIT until February 1993. Through
AFC, AMIT had invested in various types of intermediate-term real estate loans
(the "AMIT Loans"). Prior to December 1996, the majority of the AMIT Loans were
made to partnerships that were once controlled by Angeles and are now controlled
by Insignia Financial Group, Inc., a Delaware corporation, which through MAE GP,
its affiliate, holds the Trust's Class B Shares, (Insignia Financial Group, Inc.
and its affiliates are collectively referred to as "Insignia" in this document).
These partnerships include private and public real estate limited partnerships
which were formed to acquire, own and operate income-producing real properties.
As of December 31, 1997, there were 23 AMIT Loans outstanding, with an aggregate
portfolio balance of approximately $37 million, net of loan loss reserves, and
AMIT owned as a result of foreclosures or receipt of deeds in lieu of
foreclosure on certain assets securing certain AMIT Loans approximately $4.5
million of real property.
 
     By virtue of its ownership of the Class B Shares, Insignia owns a 1%
interest in the profits, losses, credits and distributions of the Trust and 39%
of the Trust's total voting shares. As discussed in Note 7, "Notes to Financial
Statements," the Trust and MAE GP entered into an agreement, effective April
1995, pursuant to which MAE GP granted to the Trust the option to purchase all
the Class B Shares currently owned by MAE GP. The option is exercisable by the
Trust in 2005 for approximately $94,000. During the 10 year period that the
option is outstanding, all of the Class B Shares are required to vote, pursuant
to an irrevocable proxy, with the majority of Class A Shares in connection with
any proposal involving the Trust and Insignia or the election of any Trustee
nominated by MAE GP which is an insider affiliate of MAE GP including Insignia.
Such majority will be determined without consideration of the votes of "Excess
Class A Shares," as defined in the Trust's Declaration of Trust. With respect to
all other matters, MAE GP can vote the Class B Shares without restriction.
 
     Beginning in February 1993, AMIT faced significant liquidity problems
caused by (i) the failure of a significant number of the obligors of the AMIT
Loans (primarily partnerships controlled by MAE) to fully service outstanding
debt obligations under their respective AMIT Loans, and (ii) Angeles' inability
to fully service its debt obligations under its promissory note payable to AMIT
or perform its other obligations to AMIT under its third party loan guarantees
and shareholder distribution guarantees. As of February 1993, approximately 75%
of the AMIT Loans were in payment default. In February 1993, Angeles informed
AMIT that it was unable to perform its obligations under its guarantees because
of liquidity problems caused by its inability to complete sales or refinancings
of real estate assets, its inability to fully realize asset values in a
continuing sluggish and depressed real estate market and the failure of the
obligors of the AMIT Loans to service fully, if at all, their debt obligations
to Angeles. On May 3, 1993, Angeles filed for protection under Chapter 11 of the
federal bankruptcy code. Angeles' failure to perform under its guarantees,
together with the defaults on AMIT Loans, resulted in AMIT's suspension of cash
distributions to the holders of AMIT Class A Shares starting in February 1993
and resuming in February 1996. AMIT filed various claims against Angeles and
eventually reached agreement with Angeles and the Committee of Creditors Holding
Unsecured Claims of Angeles to settle all claims between AMIT and Angeles. The
settlement agreement was approved by the
 
                                      F-81
<PAGE>   339
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
Bankruptcy Court in March 1995. Under the agreement, AMIT received over $15
million in cash, notes and AMIT Class A Shares.
 
     Since February 1993 (when AMIT terminated its advisory agreement with AFC),
AMIT has restructured its loan portfolio and has paid in full its then
outstanding bank loan of $20 million. However, certain AMIT Loans, which in the
aggregate have a carrying value (net of loan loss reserves) of approximately
$1.3 million (constituting approximately 3% of AMIT's net investments), are
currently in default with respect to debt service obligations. AMIT's lending is
primarily concentrated in secured and, to a lesser extent, unsecured real estate
loans. The realizable value of real estate collateralizing notes receivable or
acquired in loan foreclosure proceedings can only be determined based upon a
sales negotiation between independent third parties in an arm's length
transaction. In addition, considering that, in most cases, it is the proceeds of
sale and/or refinancing which will enable AMIT to receive funds, the actual
proceeds may be significantly impacted by the condition of the real estate
industry at the time the principal amounts become due or properties sold.
 
     AMIT will terminate December 31, 2003, unless extended to no later than
December 31, 2015 by vote of the shareholders of AMIT, or by the AMIT Board to
no later than December 31, 2020 without a vote of the shareholders of AMIT if
the AMIT Board believes that termination at such time would result in material
under-realization of the value of AMIT's assets. Upon liquidation of AMIT,
disposition proceeds will be distributed to the shareholders.
 
     An entity will qualify for taxation as a REIT if it satisfies certain
income and asset tests. Among these tests is a requirement that a certain
percentage of assets constitute "real estate assets" and a certain percentage of
income be derived from such assets. AMIT's loan assets are collateralized in a
variety of ways, and some loans have not been collateralized. AMIT has not
requested nor obtained an IRS determination that any of its assets qualify as a
"real estate asset," and has not obtained an opinion of counsel that it
currently qualifies as a REIT. If AMIT were to fail to qualify as a REIT in any
taxable year, AMIT would not be allowed a deduction for dividend distributions
in computing taxable income and would be subject to federal income tax on its
taxable income at regular corporate rates. AMIT believes that it has operated in
a manner designed to qualify as a REIT. However, if the Internal Revenue Service
were successfully to challenge the qualification of AMIT's REIT assets, AMIT
would be subject to federal income tax only after the utilization of AMIT's net
operating losses.
 
NOTE 2 -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
     Basis of Accounting -- The financial statements of the Trust are prepared
on the accrual basis and therefore, revenue is recorded as earned and costs and
expenses are recorded as incurred. The preparation of the financial statements
in conformity with generally accepted accounting principles requires management
to make estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the period. Actual results could differ from these estimates. Certain
prior years amounts have been reclassified to conform to current year
classifications.
 
     Cash and Cash Equivalents -- For financial reporting purposes, the Trust
considers cash and cash equivalents to include cash on deposit and amounts
invested in money market funds with original maturity terms of less than 90
days.
 
     Interest Recognition on Notes Receivable -- Interest income is recorded as
earned in accordance with the terms of the loans. Interest income is not
recorded on individual loans if the carrying value of the receivable exceeds the
realizable value of the underlying collateral or if payments are in default in
excess of two months.
 
                                      F-82
<PAGE>   340
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     Foreclosed Real Estate Held for Sale -- Foreclosed real estate is initially
recorded at new cost, defined as the lower of original cost or fair value minus
estimated costs of sale. After foreclosure, the excess of new cost, if any, over
fair value minus estimated costs of sale is recognized in a valuation allowance.
Subsequent changes in fair value either increases or decreases such valuation
allowance. See "Allowance for Estimated Losses" below.
 
     Allowance for Estimated Losses -- Valuation allowances are established by
the Trust for estimated losses on notes receivable and properties held for sale
to the extent that the investment in notes or properties exceeds the Trust's
estimate of net realizable values of the property or collateral securing each
note, or fair value if foreclosure is probable. The provision for losses is
based on estimates using the direct capitalization of net operating income for
the underlying properties. Capitalization rates have been determined by using
micro and macro economic factors. Actual losses may vary from current estimates.
Such estimates are reviewed periodically and any additional provision determined
to be necessary is charged against earnings in the period in which it becomes
reasonably estimated.
 
     Revenue Recognition on Sale of Real Estate -- Sales of real estate are
recognized when and to the extent permitted by Statement of Financial Accounting
Standards No. 66, "Accounting for Sales of Real Estate."
 
     Income Taxes -- The Trust has elected to be taxed as a Real Estate
Investment Trust ("REIT") under the Internal Revenue Code for each taxable year
of operations. As a qualified REIT, the Trust is subject to income taxation at
corporate rates on its REIT taxable income. However, the Trust is allowed a
deduction for the amount of dividends paid to its shareholders, thereby
subjecting the distributed net income of the Trust to taxation at the
shareholder level only. As of December 31, 1997 the Trust had no tax loss
carryforwards.
 
     Net Income Per Class A Share -- The net income per Class A Share was based
on 2,617,000, 2,704,375, and 2,968,532 weighted average Class A Shares
outstanding during the years ended December 31, 1997, 1996 and 1995,
respectively, after deduction of the Class B Shares' 1% interest. The Trust
adopted Statement of Financial Accounting Standards No. 128 during 1997 and it
had no effect on the financial statements.
 
     Amortization -- The Trust amortizes loan fees to interest income over the
lives of the related Trust Loans. Loan fees and refinancing expenses paid by the
Trust are amortized over the life of the relevant loans. The Trust amortizes
leasing commissions to leasing commission expense over the term of the related
leases.
 
     Concentration of Credit Risk -- Financial instruments which potentially
expose the Trust to concentrations of credit risk are primarily temporary cash
investments and mortgage and promissory notes receivable. The Trust places its
temporary cash investments with major financial institutions and, by policy,
limits the amount of credit exposure to any one financial institution. Of all
notes receivable, 50% are with partnerships who have previously defaulted on
their obligations (see Note 3).
 
     Investment in Joint Venture -- The Trust's investment in joint venture is
accounted for using the equity method since it is the Trust's intention to
dispose of the joint venture interest.
 
     Market Value of Financial Instruments -- The Trust used the following
assumptions in estimating the fair value of its notes receivable. For performing
notes receivable, the fair value was estimated by discounting future cash flows
using current interest rates for similar loans. For nonperforming notes
receivable, the estimated fair value of the Trust's interest in the collateral
property was used. The market value of notes receivable can only be determined
based upon a sales negotiation between independent third parties in an arm's
length transaction. Actual proceeds may be significantly impacted by the
condition of the real estate industry at the time the principal amounts become
due.
 
                                      F-83
<PAGE>   341
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE 3 -- NOTES AND INTEREST RECEIVABLE
 
     Notes receivable are collateralized by real property owned by the borrowers
of such Trust Loans, or by an assignment of the limited partnership interest in
the limited partnership that owns the property (but not the specific underlying
property) or by a general obligation of the limited partnership that owns the
property. All of the Trust's notes receivable collateralize the Trust's line of
credit with a third party lender (see Note 6).
 
     Activity in the allowance for estimated loan losses was as follows:
 
<TABLE>
<CAPTION>
                                                           1997          1996          1995
                                                        -----------   -----------   -----------
<S>                                                     <C>           <C>           <C>
Balance at beginning of period........................  $12,100,000   $13,598,000   $26,595,000
Provisions for losses.................................           --     4,334,000     2,350,000
Deductions............................................   (3,274,000)   (5,832,000)  (15,347,000)
                                                        -----------   -----------   -----------
Balance at end of period..............................  $ 8,826,000   $12,100,000   $13,598,000
                                                        ===========   ===========   ===========
</TABLE>
 
     The provisions for losses for 1996 and 1995 relate to debt modifications
whereby unrecorded past due interest receivable was restructured as principal
(see below).
 
     The deductions to the estimated loan losses relate primarily to the full or
partial repayment of Trust loans and foreclosure of properties by either the
Trust or the first lien holder, where the Trust is in a second position. During
1995 the Trust modified the Fox Run loans and capitalized approximately
$1,914,000 of past due interest and default interest into the principal of the
loans. The Trust reversed $1,800,000 of allowance for estimated loss relating to
the Fox Run loans, based upon improved property performance, the commencement of
modified debt service in the fourth quarter of 1995 and an anticipated
refinancing of the mortgages on the property. In 1996 approximately $660,000 of
deductions were due to the significant improvement of property performance
underlying certain of the Trust loans.
 
     Included in the Trust's allowances for estimated losses on notes receivable
is approximately $4.8 million relating to one loan, -- a promissory note on a
Waukegan, Illinois apartment complex, referred to as Fox Crest. The property has
continued to improve in operations since February 1993, which may lead to some
future recovery of some portion of this promissory note. The property still
needs maintenance and capital improvements and has not provided the Trust with
any debt service since February 1993 and no debt service is anticipated in the
near future. The Trust has not reduced the allowance. There can be no assurances
that the value in this property will exceed the first mortgage debt.
 
     During the quarter ended March 31, 1997 the Trust restructured a first
mortgage referred to as LaSalle, on which the Trust had began foreclosure
proceedings in 1996. In connection with the related loan modification, the Trust
capitalized and recognized as interest income, approximately $409,000 of past
due interest, late fees, default interest along with approximately $14,000 of
out-of-pocket costs incurred by the Trust during the foreclosure process. The
restructured loan required monthly interest only payments based upon the stated
note rate of 11.5% on the reconstituted loan balance. In October 1997 this loan
was paid in full.
 
     During the year ended December 31, 1997, four AMIT loans prepaid the total
outstanding principal balances of approximately, $6,800,000 and another loan,
referred to by the Trust as Northprior, made a substantial repayment in the
amount of $340,000. The four loans, which made full repayments, are referred to
by AMIT as Angeles Partners X ($614,000), Angeles Corporation ($3,450,000),
Carriage Hills ($1,404,000) and LaSalle ($1,334,000). The Northprior and
Carriage Hill loans had been previously fully reserved for loan loss and as a
result of the principal repayments AMIT realized recovery of bad debt in the
amounts of $340,000 and $1,404,000, respectively. In addition, the Carriage
Hills loan repaid all past due interest in the amount of $237,000 which the
Trust recognized as interest income in November 1997.
 
                                      F-84
<PAGE>   342
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     During 1997 the Trust began receiving debt service on two loans which had
been previously restructured in 1996, the Angeles Partners XIV and Brittany
Point loans. The Angeles Partners XIV loan in October 1997 paid all past due
interest in the amount of $82,000 and made a partial principal repayment of
$48,000. During the first six months of 1997 the Brittany Point loan began
making cash flow interest payments to the Trust and effective July 1997 began
making monthly interest only payments at the stated interest rate of 12 1/2%. As
a result of the commencement of monthly debt service and significant improvement
of the property operations for the Brittany Point loan, the Trust in December
1997 realized as interest income $337,000 of past due interest.
 
     In December 1997 the Trust wrote-off a promissory note, with a principal
outstanding balance of $1,530,000 referred to by the Trust as Vista Hills. Based
upon the Trust's evaluation of the property operations and discussions with the
borrower regarding the likelihood of foreclosure by the first lien holder in
1998 the Trust believed there would be no recovery in the future. The Borrower
had indicated to the Trust that the property would most likely be foreclosed
upon the first lien holder during 1998. The Trust had previously fully provided
for loan loss reserves for this loan and did not realize any loss or gain from
the sale.
 
     In February 1997, AMIT made its first new loan since January 1993, in the
amount of $5,000,000, secured by first deeds of trust on three manufactured home
parks located in Texas. This new loan requires interest only payments at 8.9%
and matures in December 2003. In April 1997, AMIT made a second new loan in the
amount of $2,950,000 secured by a first deed of trust on a 628,000 square foot
industrial warehouse located in Martinsville, Virginia. This loan requires
interest only payments at 11% and matures in April 1998. In June 1997 AMIT made
a new first mortgage loan in the amount of $1,900,000 secured by four
manufactured home parks located in Wyoming. The new loan requires interest only
payments of 9.07% and matures in December 2003. In December 1997 AMIT made three
first mortgage loans in the amounts and terms as follows: $1,300,500 on a
144,000 square foot office/warehouse facility located in Houston, Texas with an
8% interest rate, interest only payable monthly; $531,250 on a 56,080 square
foot industrial/warehouse located in Aiken, South Carolina with an 8% interest
rate, principal and interest payable monthly, with principal amortized over 20
years; and $2,185,000 on a 335,000 square foot industrial facility located in
Jackson, Tennessee, initially monthly interest only payable at a rate of 10 1/2
%, with the interest rated reduced to 230 basis points over ten-year Treasuries
upon the debt coverage ratio increasing to a stipulated level. All three of
these December 1997 first mortgage loans mature in December 2007.
 
     In December 1997 the Trust purchased a second mortgage loan for $384,000.
This second mortgage loan is on a 186-unit apartment complex, Silver Ridge
Apartments, located in Maplewood, Minnesota. The Silver Ridge second mortgage
has a contract interest rate of 10% and a default rate of 12% and matured
December 31, 1997. In addition, during 1997 the Trust obtained judgement liens
against the Silver Ridge Apartments property based upon recourse provisions on
other Trust loans. Through one of these judgement liens the Trust successfully
foreclosed on the property in October 1997 and will be the owner of the property
after a twelve-month redemption period which ends in October 1998. Silver Ridge
Apartments is also encumbered by a $4.5 million first mortgage held by an
independent third party.
 
     As of December 31, 1997, the Trust has signed and proposed commitments to
fund approximately $1 million of new loans.
 
     During 1996, the Trust began foreclosure proceedings on three industrial
properties in Cleveland, Ohio that represent additional collateral available to
the Trust through recourse provisions of a failed loan referred to as Marina
Plaza. Although the properties are heavily indebted and in need of maintenance
and capital improvements, the Trust has received early indications of sales
value from potential purchasers that may provide recovery of approximately
$300,000 which would be recognized as income after foreclosure and sale of these
properties.
 
                                      F-85
<PAGE>   343
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     As reported by the Trust in 1995, the Trust loan referred to as North Prior
defaulted on its obligation to the Trust as well as to the senior lender on the
property. The property was sold just prior to foreclosure with proceeds
sufficient to pay the senior lender the full amount of the senior obligation.
Proceeds above the senior obligation were escrowed for potential use in an
environmental remediation that occurred prior to the foreclosure and sale.
Approximately $870,000 remains in the escrow and in January 1998 a site closure
letter was received from the state environmental government authority. The Trust
will recognize income for amounts, when and if, received from escrow, which is
anticipated to occur in 1998.
 
     During 1996 the Trust modified five loans referred to as Brittany Point,
Fox Crest, Carriage Hills, Vista Hills and Angeles Partners XIV-Waterford. In
connection, with the modifications, the Trust extended the maturity dates on all
of the loans except for Angeles Partners XIV-Waterford, to December 31, 2000,
March 1, 2003, September 1, 2000 and September 1, 2002, respectively, and
capitalized approximately $320,000, $1,765,000, $204,000, $230,000 and $134,000,
respectively, of past due interest into principal. The modified notes require
payments only out of cash flows provided by the properties. The Trust did not
recognize any interest income in connection with these loan modifications.
 
     During the last quarter of 1996 the Trust modified and received a
significant repayment on two of the Trust's largest loans. In October 1996, the
Arrowhead Joint Venture $6 million loan (which was previously secured only by a
partnership interest), along with a related $1.2 million unsecured preferred
partnership distribution interest ("Preferred Interest"), was restructured to a
$9 million first trust deed mortgage, with a current effective interest rate of
10.20% reducing to a 9.8% rate upon repayment of $1.5 million which is scheduled
to occur in late 1998. The restructuring has resulted in the Trust significantly
strengthening the collateral on this loan along with increasing the annual debt
service on this loan by approximately $400,000. The $1.2 million Preferred
Interest was originally acquired in the settlement with Angeles (see Note 9 of
Notes to Financial Statements) and was previously valued at zero as it had an
indeterminable value when it was acquired. In addition, the Trust capitalized
approximately $1.7 million in deferred interest that was not previously
recognized in income, as full recovery of such interest was until the
modification, considered doubtful.
 
     In December 1996, the Trust received approximately $7 million from its
three Fox Run mortgages as a result of the borrower refinancing the property.
The $7 million of cash proceeds represented the full repayment of approximately
$6.7 million of principal on these three loans with the remainder representing a
portion of the accrued interest associated with the loans. In addition to this
repayment, the Trust took back a new third mortgage on the Fox Run property in
the amount of $875,000. The $875,000 is comprised of approximately $425,000 of
the remaining accrued interest from the three Fox Run loans and approximately
$450,000 of accrued interest and principal on the Angeles Partners XI-Harbour
Landing promissory note. The Trust recognized $2 million of bad debt recovery on
this transaction, and approximately $900,000 of interest income from accrued
interest not previously recognized, as full recovery of such interest was not
reasonably assured until the repayment.
 
     In addition, in December 1996 the Trust acquired, at par, three first
mortgage loans from an unaffiliated third party for approximately $2.9 million.
These mortgages are on three properties known as Hospitality Inns (three
separate properties and locations) on which the Trust held three second
mortgages. All of these six mortgages matured in October 1996. The Trust
restructured the first and second mortgage loans on these three properties
effective April 30, 1997. The loan modifications for each property provided that
the first and second mortgages be combined into one first mortgage loan. In
addition to combining the first and second mortgages on each property, the Trust
also capitalized and recognized as interest income, a total of approximately
$440,000 of accrued interest and late fees for all three loans. Each
restructured loan requires monthly principal and interest based upon the stated
note rate of 11% for two of the loans and 11.25% for the third loan on the
reconstituted loan balance, with principal paid based on a 30-year amortization.
The current
 
                                      F-86
<PAGE>   344
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
monthly debt service the Trust receives from this restructuring is $50,000. The
Trust also received a one-point loan fee in conjunction with the loan
restructuring totaling approximately $52,000.
 
     Notes receivable are summarized as follows:
 
<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                           -----------------------------------------------------
                                                     1997                        1996
                                           -------------------------   -------------------------
                                            ESTIMATED                   ESTIMATED
                                           FAIR VALUE    BOOK VALUE    FAIR VALUE    BOOK VALUE
                                           -----------   -----------   -----------   -----------
<S>                                        <C>           <C>           <C>           <C>
MORTGAGE NOTES RECEIVABLE:
First trust deeds, primarily requiring
  monthly interest only payments ranging
  from 8% to 12.5%, maturing through
  December 2007..........................  $34,510,000   $33,038,000   $18,385,000   $17,868,000
Second trust deeds, requiring monthly
  interest only payments ranging from 10%
  to 12.5%, maturing through December
  2000...................................    4,113,000     5,680,000     4,790,000     7,427,000
Third trust deed, requiring monthly
  interest and principal payments of
  11.25%, maturing January 2002..........      872,000       872,000       875,000       875,000
                                           -----------   -----------   -----------   -----------
                                            39,495,000    39,590,000    24,050,000    26,170,000
Less: Unearned loan fees.................                   (243,000)                   (127,000)
                                                         -----------                 -----------
          Net mortgage notes
            receivable...................                 39,347,000                  26,043,000
PROMISSORY NOTES RECEIVABLE:
Promissory notes receivable, requiring
  monthly interest payments ranging from
  8% to 12.5%, maturing through March
  2003 (See Note 5)......................    2,697,000     6,789,000     7,314,000    14,175,000
                                           -----------   -----------   -----------   -----------
          NOTES RECEIVABLE...............  $42,192,000   $46,136,000   $31,364,000   $40,218,000
                                           ===========   ===========   ===========   ===========
</TABLE>
 
     At December 31, 1997 mortgage notes receivable of $3,735,000 and promissory
notes receivable of $1,539,000, all of which are due from affiliates, are in
default.
 
     With respect to the promissory notes receivable as of December 31, 1997,
$4,764,000 is secured by partnership interests and other loans and $2,024,000
are general obligations of partnerships or individuals. The underlying
properties are not collateral for such loans.
 
     During year ended December 31, 1995, debt holders senior to the debts of
the Trust foreclosed upon two Trust Loans referred to as Marina Plaza and
Burnhamthorpe, respectively. Both loans had been fully reserved for loss.
However, due to recourse provisions on the Marina Plaza loan, the Trust was able
to obtain title to a property having an estimated value of $300,000.
 
     Scheduled maturities of notes receivable due subsequent to December 31,
1997 are, $5,236,000 in 1998, $7,504,000 in 1999, $1,645,000 in 2000, $1,567,000
in 2001, $6,081,000 in 2002 and $19,072,000 thereafter. It is likely that the
scheduled maturity dates, for certain of the notes, will be extended.
 
NOTE 4 -- REAL ESTATE HELD FOR SALE
 
     In August 1993, the Trust foreclosed on a parcel of land located in
Houston, Texas, referred to by the Trust as "Martinique," for which it held a
first trust deed mortgage. The Trust did not recognize a loss on foreclosure in
1993 in excess of the reserve of $600,000 previously provided. The property was
sold in December 1995, for $1.5 million and the Trust received net cash proceeds
of approximately $1,371,000. The Trust realized a $3,000 loss on the sale.
 
                                      F-87
<PAGE>   345
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     In 1994, the Trust began a foreclosure action on a $1,500,000 first trust
deed mortgage held on a property referred to as 4851 Van Epps, an industrial
warehouse located in Cleveland, Ohio. The Trust had previously provided a loss
reserve of $600,000 on this loan. In September 1995 the Trust obtained title to
the property through a deed-in-lieu of foreclosure. In October 1995 the Trust
sold the property for $1,370,000, taking back a $700,000 first trust deed
mortgage on the property and received net cash proceeds of approximately
$580,000. The Trust realized income of $435,000 from the sale.
 
     In January 1994, the Trust acquired, through a foreclosure on its loan of
$3,600,000, a 220-unit apartment complex located in Decatur, Georgia. The
foreclosure resulted in no loss in 1994 as the reserve of $430,000 had been
previously provided. See Note 3. In April 1994, the Trust sold the property and
received net cash proceeds of approximately $3.3 million. The Trust recognized
income of $2,000 from the sale.
 
     The Trust obtained title to the 4705 Van Epps property through a
deed-in-lieu of foreclosure in August 1995. The Trust had obtained a judgment
lien of approximately $2.7 million on this property as a result of recourse
provisions in the $2 million note referred to as Marina Plaza. In consideration
of the deed-in-lieu of foreclosure, the Trust agreed to reduce the judgment lien
by $500,000 and a payment of $5,000. The 4705 Van Epps property had a $343,000
delinquent first mortgage from an independent financial institution which the
Trust was required to pay upon transfer of title to the Trust. The Trust
recorded this property at $500,000 and recognized approximately $151,000 as
recovery of bad debt. The property was sold in February 1996 for $752,000,
received net cash proceeds of approximately $677,000 and realized a $184,000
gain on the sale.
 
     In August 1996, the Trust foreclosed on a 443 unit mobile home park located
in Belton, Missouri, referred to by the Trust as Springdale Lake Estates MHP
("Springdale"), for which it held a second trust deed mortgage in the amount of
$1,720,000 and had capitalized foreclosure costs of approximately $2,000. Upon
taking title to Springdale, the Trust assumed a first mortgage on the property
in the amount of approximately $2,800,000. The Trust did not recognize any loss
from the foreclosure as a reserve of $531,000 had been previously provided. In
October 1996, the Trust sold Springdale for $4,000,000 and received net cash
proceeds of approximately $1,112,000 with no gain or loss recognized on the
sale.
 
     As of December 31, 1997, the Trust owned three real estate properties held
for sale, referred to as University Center Phase IV a 56,000 square foot retail
center and University Center Phase I & II, a 51,200 square foot warehouse office
space, both of these properties are located in Fridley, Minnesota, and a
240-acre parcel of raw land referred to as Colony Cove located in Ellenton,
Florida.
 
     The Trust foreclosed on University Center Phase IV in December 1995, on
which it held a $1,800,00 first trust deed mortgage. This note contained
recourse provisions, accordingly, the Trust received as a function of the
foreclosure action, a judgment lien in the amount of $464,000 on a property
called University Center Phase I & II. As the Trust had two additional loans
with the same borrower, the borrower agreed to deed-in-lieu of foreclosure the
University Center Phase I & II property in consideration of reducing the
principal loan balance by $880,000 on a second trust deed mortgage held by the
Trust in the original amount of $2,600,000, known as Springdale Lake Estates.
The Trust recorded the University Center Phase I and II property at $1,100,000,
its estimated fair market value.
 
     In October 1997 and previously in April 1996, the Trust foreclosed on a 40
and an adjacent 200 acre parcel of land, respectively, located in Ellenton,
Florida, referred to by the Trust as "Colony Cove", for which it held a first
trust deed mortgage in the amount of $1,572,000 on the 200-acres and had
recourse, through provisions on the mortgage note, allowing the foreclosure on
the adjacent 40-acres. In conjunction with the foreclosures, the Trust incurred
approximately $178,000 in expenses, which have been capitalized into the cost of
the property. The Trust did not recognize any income or loss from the
foreclosure. During 1997 the Trust entered into a contract to sell approximately
224 acres of this property zoned residential for $8,500 per acre. The contract
requires the sale to close in the latter part of 1998, although there can be no
assurances that this
 
                                      F-88
<PAGE>   346
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
transaction will occur. Subsequent to 1997, in January 1998 the Trust garnished
cash of approximately $160,000 held by the borrower based upon the recourse
provisions of the mortgage note. The $160,000 reduced the capitalized cost of
the property.
 
     In June 1996, the Trust obtained through foreclosure a 57% joint venture
interest in a 160-acre parcel of land in Ocala, Florida. This property was
collateral for a Trust loan in the amount of $1,050,000, referred to as "Rolling
Greens." The Trust did not recognize any loss on the foreclosure as a reserve of
$465,000 had been previously provided. This property was sold in 1997 and the
Trust received approximately $665,000 and realized a gain of $80,000 on the
sale.
 
NOTE 5 -- ANGELES PROMISSORY NOTE RECEIVABLE
 
     The Trust had provided Angeles with a $10,000,000 promissory note
receivable secured by real estate, expiring May 31, 1993. At December 31, 1994,
outstanding borrowings on the note were $9,255,000. As a result of the Angeles
settlement as discussed in Note 9 the Trust received over $15 million in cash,
notes and stock to settle this note along with other matters. The new note in
the amount of $6,100,000 received from Angeles in the settlement was fully
repaid during 1997.
 
NOTE 6 -- NOTE PAYABLE TO BANK
 
     The Trust's line of credit with the Bank, in the amount of $5 million
requires monthly interest only payments based upon prime plus  1/2% and matures
April 30, 1998. The line of credit with the Bank allows the Trust to draw on
such line to facilitate the foreclosure process on Trust Loans. In August 1995
the Trust drew down on such line of credit in the amount of $343,000 in order to
pay-off the first trust deed on a property obtained through a deed-in-lieu of
foreclosure (see Note 4). As of December 5, 1995, the Trust paid off the
remaining outstanding balance on the line of credit. In June 1996, the Trust
drew down for a three day period of time $480,000. During 1997 the Trust did not
draw on the line of credit and as of December 31, 1997 the Trust has no
outstanding borrowings with the Bank.
 
     The Trust's average month-end borrowings on the working capital line of
credit were $0 in 1997 and 1996. In conjunction with the financing, the Trust
paid loan fees of $25,000, $19,000, and $43,000 in 1997, 1996 and 1995,
respectively.
 
NOTE 7 -- RECORDED CASH ADVANCES FROM AFFILIATED PARTNERSHIPS AND PROPOSED
          SETTLEMENT WITH INSIGNIA
 
     In July 1993, the Trust had filed a lawsuit challenging the Trust's
indebtedness and any liability for principal and interest relating to funds
allegedly loaned to the Trust by eight partnerships. The balance outstanding on
these alleged loans, as of December 31, 1994, was $7,585,000 along with accrued
interest of approximately $941,000. Cross complaints were filed against the
Trust by certain of the lending partnerships in this same lawsuit seeking, among
other things, repayment in full of the alleged loans. Effective March 31, 1995,
the following settlement was consummated between the Trust and seven
partnerships, Insignia and affiliates of Insignia. Funds were paid to such
entities on April 14, 1995 as follows:
 
     - the Trust paid approximately, $5,752,000 in cash;
 
     - the Trust purchased, for $250,000, an option from MAE GP Corporation, an
       affiliate of Insignia, to purchase all the Class B Shares of the Trust
       currently owned by the affiliate. Such holdings represent 100% of the
       Trust's outstanding Class B Shares. The option is exercisable by the
       Trust in 10 years for approximately $94,000. During the 10 year period
       the option is outstanding all of the Class B Shares will be voted,
       pursuant to an irrevocable proxy, with the majority of Class A Shares in
       connection with any proposal involving the Trust and Insignia or any
       affiliate thereof or election of any Trustee
 
                                      F-89
<PAGE>   347
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
       nominated by or affiliated with Insignia. Such majority will be
       determined without consideration of the votes of "Excess Class A Shares,"
       as defined in the Trust's Declaration of Trust. With respect to all other
       matters the affiliate of Insignia can vote the Class B Shares without
       restriction.
 
     In addition, one partnership, not affiliated with Insignia, having an
alleged loan to the Trust of $1,150,000 along with accrued interest of
approximately $145,000 as of March 31, 1995, reached an agreement with the Trust
for a settlement of all claims between the Trust and the partnership. Pursuant
to this agreement the Trust paid a total of $930,000 of cash on May 9, 1995,
upon execution of the settlement agreement.
 
     As a result of this settlement the Trust recognized an extraordinary gain
of $1,844,000 summarized as follows:
 
<TABLE>
<S>                                                           <C>
Recorded cash advances from affiliated partnerships.........  $ 7,585,000
Accrued interest on recorded cash advances through
  12/31/94..................................................      941,000
                                                              -----------
          Total recorded liabilities relating to recorded
           cash advances....................................    8,526,000
Less:
  Settlement of principal and interest on Insignia related
     partnerships...........................................   (5,686,000)
  Additional interest due on settlement of Insignia related
     partnerships...........................................      (66,000)
  Settlement of principal on non-Insignia related
     partnership............................................     (930,000)
                                                              -----------
          Extraordinary gain................................  $ 1,844,000
                                                              ===========
</TABLE>
 
NOTE 8 -- SHAREHOLDERS' EQUITY
 
     The Shares of the Trust are of two classes: Class A Shares (par value $1.00
per share) and Class B Shares (par value $.01 per share). There is no limit on
the number of either Class A or Class B Shares which the Trust is authorized to
issue. Class A and Class B Shares are each entitled to one vote per share with
respect to the election of Trustees and other matters.
 
     In 1995, the Trust purchased, for $250,000, an option from MAE GP
Corporation, an affiliate of Insignia to purchase all the Class B Shares of the
Trust currently owned by the affiliate. Such holdings represent 100% of the
Trust's outstanding Class B Shares. The option is exercisable by the Trust in 10
years for approximately $94,000. During the 10 year period the option is
outstanding, all of the Class B Shares will be voted, pursuant to an irrevocable
proxy, with majority of Class A Shares in connection with any proposal involving
the Trust and Insignia or any affiliate thereof or election of any Trustee
nominated by or affiliated with Insignia. The majority will be determined
without consideration of the votes of "Excess Class A Shares," as defined in the
Trust's Declaration of Trust. With respect to all other matters, the affiliate
of Insignia can vote the Class B Shares without restriction.
 
     In November 1996, the Trust's Board of Trustees adopted a Shareholders
Rights Plan and declared a dividend of one Right on each outstanding share of
the Trust's Class A Shares to stockholders of record on November 18, 1996. The
Rights are exercisable if a person or group acquires 20% or more of the Trust's
Class A Shares or announces or commences a tender offer for 20% or more of the
such shares. When a person or group acquires such 20%, each exercisable Right
will entitle its holder (other than such person or group) to purchase, at the
Right's then-current exercise price, a number of the Trust's Class A Shares
having a market value of twice such price. In addition, if the Trust is acquired
in a merger or other business combination transaction after a person has
acquired 20% or more of the Trust's outstanding Class A Shares, each right will
entitle its holder to purchase, at the Right's then-current exercise price, a
number of the acquiring company's common shares having a market value of twice
such price. Prior to the acquisition by a person or group of beneficial
ownership of 20% or more of the Trust's common stock, the Rights are redeemable
for one cent per Right at the option of the Board of Trustees. The Board of
Trustees is also authorized, under certain
 
                                      F-90
<PAGE>   348
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
circumstances, to reduce the 20% threshold referred to above to not less than
10%. The Rights will expire on December 31, 2003 unless otherwise extended by
the Board of Trustees.
 
     The Board of Trustees of the Trust has authorized the Trust to repurchase,
in open market transactions, up to 10% of its Class A Shares. The Trust has
repurchased 43,800 shares under this program. There were no purchases in the
open market in 1997, 1996 and 1995 however the Trust acquired 209,700 Class A
Shares for $1,730,000 less $764,000 in expenses, in settlement of actions it had
brought against certain third parties.
 
     In February 1993, the Trust's policy of distributing monthly the net cash
from operations to its Class A shareholders was temporarily suspended as a
result of the failure of the Insignia Partnerships and partnerships affiliated
with Angeles to fully service their Trust Loan obligations and Angeles'
inability to perform its guarantee of a minimum annual distribution of $2.00 per
Class A Share through May 1994 or meet its obligations under its promissory note
receivable with the Trust because of its own liquidity problems. The Trust made
shareholder distributions aggregating $1.03 and $0.52 per share in 1997 and
1996, respectively, and made no distributions in 1995. In December 1997, the
Board of Trustees of the Trust declared a $.32 per share dividend payable on
February 11, 1998, to shareholders of record on January 13, 1998.
 
NOTE 9 -- SETTLEMENT WITH ANGELES CORPORATION
 
     Angeles had been unable to service its debt obligations under its
promissory note receivable with the Trust or perform its obligations under its
guarantees of the Trust's Loans. In May 1993 Angeles filed for protection under
Chapter 11 of the federal bankruptcy code. Angeles's failure to perform under
its debt obligations and guarantees with the Trust together with other matters,
resulted in the March 1994 filing by the Trustees, on behalf of the Trust, of
substantial claims against Angeles in a proof of claim in the Angeles
bankruptcy.
 
     The Trust reached agreement with Angeles and the Committee of Creditors
Holding Unsecured Claims of Angeles to settlement of all claims between the
Trust and Angeles. The settlement agreement was approved by the Bankruptcy Court
under a plan of reorganization and the Trust received on April 14, 1995, after
the effective date of Court approval (March 31, 1995), the following:
 
     - cash of $6.0 million;
 
     - collateralized note payable of $6,100,000 due December 31, 1998, interest
       paid quarterly at prime plus 1% not to exceed 8.5%;
 
     - 567,326 Class A Shares of the Trust, owned by Angeles, representing 16%
       of the then total outstanding Class A Shares of the Trust;
 
     - payment of $1 million on a third party claim;
 
     - assignment of a third party preferred interest with a face value of $1.2
       million; and
 
     - a release of all claims on behalf of Angeles against the Trust.
 
     The $6.1 million note is collateralized with a pledge of Angeles's limited
partnership interest in a limited partnership whose assets are comprised of
notes and receivables from various real estate investment partnerships. This
note was paid in full during 1997.
 
     The third party $1.2 million preferred interest received in the settlement
had an indeterminable value when acquired and therefore was recorded at zero.
 
                                      F-91
<PAGE>   349
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     The settlement transaction with Angeles resulted in the Trust recording
$12,844,000 as recovery of bad debt, summarized as follows:
 
<TABLE>
<S>                                                            <C>
Consideration received in settlement:
  Cash......................................................   $ 6,000,000
  Collateralized note.......................................     6,100,000
  Third party subordinated note.............................     1,200,000
  Reimbursement for third party claim.......................     1,000,000
  567,326 Class A Trust Shares (valued as of effective date
     of settlement, $7.50/ Class A share)...................     4,254,000
  Other.....................................................       745,000
                                                               -----------
          Total.............................................    19,299,000
Less:
  Repayment of Angeles note receivable, net of reserve......    (4,255,000)
  Reserve for third party subordinated note.................    (1,200,000)
  Payment of third party claim..............................    (1,000,000)
                                                               -----------
          Recovery of bad debt from Angeles Settlement......   $12,844,000
                                                               ===========
</TABLE>
 
NOTE 10 -- PROPOSED MERGER
 
     On July 18, 1997, AMIT, IPT, Insignia and MAE GP entered into the Merger
Agreement which, provides for, among other things, the Merger of AMIT with and
into IPT, with IPT surviving the Merger. Upon consummation of the Merger the
separate existence of AMIT will cease. A Special Meeting of AMIT shareholders
will be called to consider and vote, a proposal, to approve and adopt the Merger
Agreement and the transactions contemplated thereby, including the merger of
AMIT with and into IPT, with IPT being the surviving entity (the "Merger"), and
approve the amendment of AMIT's Declaration of Trust (the "Trust Amendment") to
permit AMIT to merge and consolidate with other entities subject to the required
vote of the AMIT Board and AMIT's shareholders (collectively, the "Merger
Proposal"). It is currently expected that the Special Meeting of Shareholders
will convene in mid 1998. A proxy statement will be circulated to all AMIT
shareholders in advance of the meeting, containing information on the proposed
merger.
 
     Pursuant to the Merger Agreement, each outstanding AMIT Class A Share will
be converted into IPT Common shares (the "Class A Exchange Ratio"). The Class A
Exchange Ratio is determined by adjusting the base exchange values set in the
Merger Agreement of $16.25 per AMIT Class A Share and $10.00 per IPT Common
Share to account for dividends paid by AMIT since December 31, 1996 and by IPT
since January 31, 1997. The Class A Exchange Ratio is subject to further
adjustment should either AMIT or IPT declare any additional dividends prior to
the Merger. No fractional IPT Common Shares will be issued. In lieu of any
fractional shares, an AMIT shareholder otherwise entitled to a fractional IPT
Common Share will receive cash from IPT in an amount determined by multiplying
such fractional share amount by the IPT Share Value.
 
     During the year ending December 31, 1997, Insignia paid approximately $1
million for professional and legal fees on behalf of the Trust with regard to
the proposed merger.
 
                                      F-92
<PAGE>   350
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE 11 -- QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
 
     The following table sets forth the selected quarterly financial data for
the Trust (in thousands except for per share amounts).
 
<TABLE>
<CAPTION>
                                                             QUARTER ENDING
                                                -----------------------------------------
                     1997                       12/31/97    9/30/97    6/30/97    3/31/97
                     ----                       --------    -------    -------    -------
<S>                                             <C>         <C>        <C>        <C>
Revenue.......................................   $3,118     $1,088     $1,758     $1,235
Net income....................................   $2,427     $  778     $1,462     $  882
PER CLASS A SHARE:
Net income....................................   $ 0.92     $ 0.29     $ 0.55     $ 0.33
Weighted average Class A Shares outstanding...    2,617      2,617      2,617      2,617
</TABLE>
 
<TABLE>
<CAPTION>
                                                             QUARTER ENDING
                                                -----------------------------------------
                     1996                       12/31/96    9/30/96    6/30/96    3/31/96
                     ----                       --------    -------    -------    -------
<S>                                             <C>         <C>        <C>        <C>
Revenue.......................................   $7,387     $  878     $  631     $1,154
Net income....................................   $6,780     $  562     $1,033     $  711
PER CLASS A SHARE:
Net income....................................   $ 2.56     $ 0.21     $ 0.37     $ 0.25
Weighted average Class A Shares outstanding...    2,617      2,617      2,757      2,827
</TABLE>
 
                                      F-93
<PAGE>   351
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
            SCHEDULE III -- REAL ESTATE AND ACCUMULATED DEPRECIATION
                               DECEMBER 31, 1997
<TABLE>
<CAPTION>
                                       INITIAL COST
                                         TO TRUST        COST CAPITALIZED
                                       ------------        SUBSEQUENT TO
                                                            ACQUISITION         GROSS AMOUNT AT
                                         BUILDING     -----------------------    WHICH CARRIED
                                         AND LAND                    CARRYING     AT CLOSE OF     ACCUMULATED      DATE OF
DESCRIPTION             ENCUMBRANCES   IMPROVEMENTS   IMPROVEMENTS    COSTS      PERIOD(1)(2)     DEPRECIATION   CONSTRUCTION
- -----------             ------------   ------------   ------------   --------   ---------------   ------------   ------------
<S>                     <C>            <C>            <C>            <C>        <C>               <C>            <C>
University Center
 Phase IV.............                  $1,800,000         --           --        $1,671,000            0            1975
Retail Shopping
Friedly, Minnesota
University Center
 Phase I & II.........                   1,100,000         --           --         1,100,000            0            1975
Warehouse Office
Friedly, Minnesota
Colony Cove...........                   1,714,000         --           --         1,750,000            0             N/A
Raw Land
                             --         ----------         --           --        ----------           --
Ellenton, Florida
       Total..........       $0         $4,614,000         $0           $0        $4,521,000           $0
                             ==         ==========         ==           ==        ==========           ==
 
<CAPTION>
                                       LIFE ON
                                        WHICH
                                     DEPRECIATION
                                      IN LATEST
                                        INCOME
                           DATE       STATEMENTS
DESCRIPTION              ACQUIRED    IS COMPUTED
- -----------             ----------   ------------
<S>                     <C>          <C>
University Center
 Phase IV.............    Dec.-'95       N/A
Retail Shopping
Friedly, Minnesota
University Center
 Phase I & II.........    Nov.-'95       N/A
Warehouse Office
Friedly, Minnesota
Colony Cove...........    Apr.-'96       N/A
Raw Land                & Oct.-'97
Ellenton, Florida
       Total..........
</TABLE>
 
FOOTNOTES TO SCHEDULE III -- REAL ESTATE AND ACCUMULATED DEPRECIATION
 
(1) Reconciliation of real property investment:
 
<TABLE>
<S>                                                            <C>
Balance at January 1, 1995..................................   $ 1,400,000
  Additions during period:
  Acquisition through foreclosure...........................     4,312,000
  Deductions during period..................................    (2,312,000)
                                                               -----------
Balance at December 31, 1995................................   $ 3,400,000
                                                               -----------
  Additions during period:
  Acquisition through foreclosure...........................     3,490,000
  Deductions during period..................................    (1,820,000)
                                                               -----------
Balance at December 31, 1996................................   $ 5,070,000
                                                               -----------
  Additions during period:
  Acquisition through foreclosure...........................        36,000
  Deductions during period..................................      (585,000)
                                                               -----------
Balance at December 31, 1997................................   $ 4,521,000
                                                               ===========
</TABLE>
 
(2) The carrying value for federal income tax purposes is $4,521,000.
 
                                      F-94
<PAGE>   352
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
                  SCHEDULE IV -- MORTGAGE LOANS ON REAL ESTATE
                               DECEMBER 31, 1997
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                        FACE
                                                    FINANCIAL   PERIODIC               AMOUNT        CARRYING
                                       INTEREST     MATURITY     PAYMENT     PRIOR       OF          AMOUNT OF
            DESCRIPTION                  RATE         DATE        TERMS      LIENS    MORTGAGES   MORTGAGES(2)(3)
            -----------               -----------   ---------   ---------   -------   ---------   ---------------
<S>                                   <C>           <C>         <C>         <C>       <C>         <C>
FIRST TRUST DEEDS
Lake Arrowhead Resort Hotel
Lake Arrowhead, California..........     10.20%      Nov-99      (1)(9)     $    --    $ 9,004        $ 9,004
*Mesa Dunes, Wakonda, Town & Country
Retail Stores, Cedar Rapids/Des
  Moines, Iowa......................      9.00%      Dec-03         (4)          --      5,000          3,390
*Princeton Meadows Joint Venture
Golf Course, Princeton Meadows, New
  Jersey............................     12.50%      Sep-01         (1)          --      1,280          1,567
Virginia Industrial Capital, LLC
  Warehouse,
Martinsville, Virginia..............     11.00%      Apr-98         (1)          --      2,950          2,950
*Hospitality Inn Hotel,
Pensacola, Florida..................     11.25%      Nov-02         (4)          --      1,652          1,648
*Hospitality Inn Hotel,
Pensacola, Florida..................     11.00%      Nov-02         (4)          --      1,297          1,294
*Hospitality Inn Hotel,
Jacksonville, Florida...............     11.00%      Nov-02         (4)          --      2,274          2,268
Affordable Residential Communities,
  LP I
Three manufactured home parks
Denton and Tyler, Texas.............      8.90%      Dec-03         (1)          --      5,000          5,000
JJ & T Enterprises, Inc.
Four manufactured home parks
Cheyenne, Wyoming...................      9.07%      Dec-03         (1)          --      1,900          1,900
American Industrial Capital, LLC
Office/warehouse
Houston, Texas......................      8.00%      Dec-07         (1)          --      1,301          1,301
American Industrial Capital, LLC
Industrial warehouse
Aiken, South Carolina...............      8.00%      Dec-07         (4)          --        531            531
American Industrial Capital, LLC
Industrial warehouse
Jackson, Tennessee..................     10.50%      Dec-07         (1)          --      2,185          2,185
                                                                            -------    -------        -------
TOTAL FIRST TRUST DEEDS.............                                        $     0    $34,374        $33,038
                                                                            =======    =======        =======
 
<CAPTION>
 
                                      PRINCIPAL AMOUNT OF LOANS
                                        SUBJECT TO DELINQUENT
            DESCRIPTION                 PRINCIPAL OR INTEREST
            -----------               -------------------------
<S>                                   <C>
FIRST TRUST DEEDS
Lake Arrowhead Resort Hotel
Lake Arrowhead, California..........           $   --
*Mesa Dunes, Wakonda, Town & Country
Retail Stores, Cedar Rapids/Des
  Moines, Iowa......................               --
*Princeton Meadows Joint Venture
Golf Course, Princeton Meadows, New
  Jersey............................               --
Virginia Industrial Capital, LLC
  Warehouse,
Martinsville, Virginia..............               --
*Hospitality Inn Hotel,
Pensacola, Florida..................               --
*Hospitality Inn Hotel,
Pensacola, Florida..................               --
*Hospitality Inn Hotel,
Jacksonville, Florida...............               --
Affordable Residential Communities,
  LP I
Three manufactured home parks
Denton and Tyler, Texas.............               --
JJ & T Enterprises, Inc.
Four manufactured home parks
Cheyenne, Wyoming...................               --
American Industrial Capital, LLC
Office/warehouse
Houston, Texas......................               --
American Industrial Capital, LLC
Industrial warehouse
Aiken, South Carolina...............               --
American Industrial Capital, LLC
Industrial warehouse
Jackson, Tennessee..................               --
                                               ------
TOTAL FIRST TRUST DEEDS.............           $    0
                                               ======
</TABLE>
 
                                      F-95
<PAGE>   353
                       ANGELES MORTGAGE INVESTMENT TRUST
 
          SCHEDULE IV -- MORTGAGE LOANS ON REAL ESTATE -- (CONTINUED)
                               DECEMBER 31, 1997
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                        FACE
                                                    FINANCIAL   PERIODIC               AMOUNT        CARRYING
                                       INTEREST     MATURITY     PAYMENT     PRIOR       OF          AMOUNT OF
            DESCRIPTION                  RATE         DATE        TERMS      LIENS    MORTGAGES   MORTGAGES(2)(3)
            -----------               -----------   ---------   ---------   -------   ---------   ---------------
<S>                                   <C>           <C>         <C>         <C>       <C>         <C>
SECOND TRUST DEEDS
*Silver Ridge Apartments
Maplewood, Minnesota................     10.00%      Dec-97         (1)     $ 4,525    $   375        $   385
*Bercado Shores Apartments,
South Bend, Indiana.................     12.50%      Jun-95         (1)       4,307      1,350          1,350
*Brittany Point Apartments,
Huntsville, Alabama.................     12.50%      Dec-00         (1)       9,536      1,570          1,570
Nolana Apartments, Inc.
Los Angeles, California.............     12.00%      Sep-98         (1)       1,873        455            375
*Southgate Apartments,
Bedford Heights, Ohio...............     11.50%      Mar-95         (1)       2,723      2,000          2,000
                                                                            -------    -------        -------
TOTAL SECOND TRUST DEEDS............                                        $22,964    $ 5,750        $ 5,680
                                                                            =======    =======        =======
THIRD TRUST DEEDS
*Fox Run(A).........................     11.25%      Jan-02         (4)     $30,400    $   875        $   872
Apartments, Plainsboro, New Jersey
                                                                            -------    -------        -------
TOTAL THIRD TRUST DEEDS.............                                        $30,400    $   875        $   872
                                                                            =======    =======        =======
PROMISSORY NOTES RECEIVABLE.........
*North Prior Warehouse Complex,
St. Paul, Minnesota.................     12.25%      Jun-96         (1)     $    --    $ 2,000        $   679
J. Schultz
An Individual.......................      8.00%      May-00         (1)          --         75             75
*Angeles Partners 16................     12.50%      Jun-97         (1)          --        860            860
California Limited Partnership
*Angeles Partners XIV
California Limited Partnership......     12.00%      Feb-98         (1)          --        459            411
*Fox Crest
Apartments, Waukegan, Illinois......     12.50%      Mar-03         (1)       6,682      4,764          4,764
                                                                            -------    -------        -------
TOTAL PROMISSORY NOTES RECEIVABLE...                                        $ 6,682    $ 8,158        $ 6,789
                                                                            =======    =======        =======
 
<CAPTION>
 
                                      PRINCIPAL AMOUNT OF LOANS
                                        SUBJECT TO DELINQUENT
            DESCRIPTION                 PRINCIPAL OR INTEREST
            -----------               -------------------------
<S>                                   <C>
SECOND TRUST DEEDS
*Silver Ridge Apartments
Maplewood, Minnesota................           $  385
*Bercado Shores Apartments,
South Bend, Indiana.................            1,350
*Brittany Point Apartments,
Huntsville, Alabama.................               --
Nolana Apartments, Inc.
Los Angeles, California.............               --
*Southgate Apartments,
Bedford Heights, Ohio...............            2,000
                                               ------
TOTAL SECOND TRUST DEEDS............           $3,735
                                               ======
THIRD TRUST DEEDS
*Fox Run(A).........................               --
Apartments, Plainsboro, New Jersey
                                               ------
TOTAL THIRD TRUST DEEDS.............                0
                                               ======
PROMISSORY NOTES RECEIVABLE.........
*North Prior Warehouse Complex,
St. Paul, Minnesota.................           $  679
J. Schultz
An Individual.......................               --
*Angeles Partners 16................              860
California Limited Partnership
*Angeles Partners XIV
California Limited Partnership......               --
*Fox Crest
Apartments, Waukegan, Illinois......               --
                                               ------
TOTAL PROMISSORY NOTES RECEIVABLE...           $1,539
                                               ======
</TABLE>
 
                                      F-96
<PAGE>   354
                       ANGELES MORTGAGE INVESTMENT TRUST
 
          SCHEDULE IV -- MORTGAGE LOANS ON REAL ESTATE -- (CONTINUED)
                               DECEMBER 31, 1997
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                           FACE
                                                          AMOUNT         CARRYING        PRINCIPAL AMOUNT OF LOANS
                                               PRIOR        OF           AMOUNT OF         SUBJECT TO DELINQUENT
                DESCRIPTION                    LIENS     MORTGAGES    MORTGAGES(2)(3)      PRINCIPAL OR INTEREST
                -----------                   -------    ---------    ---------------    -------------------------
<S>                                           <C>        <C>          <C>                <C>
SUMMARY
TOTAL FIRST TRUST DEEDS.....................  $     0     $34,374         $33,038                 $    0
TOTAL SECOND TRUST DEEDS....................   22,964       5,750           5,680                  3,735
TOTAL THIRD TRUST DEEDS.....................   30,400         875             872                      0
TOTAL PROMISSORY NOTES RECEIVABLE...........    6,682       8,158           6,789                  1,539
                                              -------     -------         -------                 ------
TOTAL.......................................  $60,046     $49,157          46,379                 $5,274
                                              =======     =======                                 ======
UNEARNED LOAN FEES..........................                                 (243)
                                                                          -------
                                                                           46,136
ALLOWANCE FOR ESTIMATED LOSSES..............                               (8,826)
                                                                          -------
                                                                          $37,310
                                                                          =======
</TABLE>
 
                                      F-97
<PAGE>   355
 
                       ANGELES MORTGAGE INVESTMENT TRUST
 
           FOOTNOTES TO SCHEDULE IV -- MORTGAGE LOANS ON REAL ESTATE
                               DECEMBER 31, 1997
 
(1) Note requires periodic interest only payments through maturity, when the
    principal balance is due.
 
(2) Reconciliation of notes receivable:
 
<TABLE>
<S>                                                           <C>
Balance at January 1, 1996..................................  $ 45,369,000
Additions:
  New mortgage loans(5).....................................    15,574,000
Deductions:
  Principal collections(6)..................................   (16,256,000)
  Foreclosures..............................................    (4,342,000)
                                                              ------------
Balance at December 31, 1996................................  $ 40,345,000
Additions:
  New mortgage loans(7).....................................    15,116,000
Deductions:
  Principal collections.....................................    (7,552,000)
  Write-off of loan(8)......................................    (1,530,000)
                                                              ------------
Balance at December 31, 1997................................  $ 46,379,000
                                                              ============
</TABLE>
 
(3) The carrying amount for Federal income tax purposes is approximately
    $42,245,000.
 
(4) Note requires monthly interest and principal payments through maturity, when
    the principal balance is due.
 
(5) Amount includes modified loans in which accrued but unrecorded interest
    income was recast as principal for the following loans; Lake
    Arrowhead -- $9,004,000, Fox Run -- $875,000, Fox Crest -- $1,764,000,
    Brittany -- $291,000 and Angeles Partners XIV -- $134,000.
 
(6) Amount includes the refinancing of the Lake Arrowhead promissory note of $6
    million.
 
(7) Amount includes modified loans in which accrued but unrecorded interest
    income was recast as principal for the following loans; Hospitality Inns
    Pensacola I -- $237,000, Hospitality Inns Pensacola II -- $97,000,
    Hospitality Inns Jacksonville -- $106,000 and LaSalle -- $423,000.
 
(8) Amount represents write-off of Vista Hills promissory note of $1,530,000.
 
(9) Requires a principal repayment of $1,500,000 in November 1998 with the
    remaining outstanding principal balance due in 1999.
 
 *  Indicates a transaction with a partnership now controlled by IPT.
 
                                      F-98
<PAGE>   356
 
                                                                         ANNEX A
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                          SECOND AMENDED AND RESTATED
 
                          AGREEMENT AND PLAN OF MERGER
 
                                 BY AND BETWEEN
 
                  APARTMENT INVESTMENT AND MANAGEMENT COMPANY
 
                                      AND
 
                           INSIGNIA PROPERTIES TRUST
 
                          DATED AS OF JANUARY 22, 1999
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   357
 
                                    TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                               Page
                                                                               ----
<S>              <C>                                                           <C>
                                     ARTICLE I
THE MERGER...................................................................   A-2
  SECTION 1.1    The Merger..................................................   A-2
  SECTION 1.2    Effects of the Merger.......................................   A-2
  SECTION 1.3    Effective Time of the Merger................................   A-3
 
                                    ARTICLE II
TREATMENT OF SHARES..........................................................   A-3
  SECTION 2.1    Effect of the Merger on Outstanding Shares..................   A-3
  SECTION 2.2    Surrender of Certificates...................................   A-5
  SECTION 2.3    Closing of Transfer Books; Etc..............................   A-6
  SECTION 2.4    No Fractional Shares........................................   A-7
  SECTION 2.5    No Other Rights.............................................   A-7
 
                                    ARTICLE III
THE CLOSING..................................................................   A-7
  SECTION 3.1    Closing.....................................................   A-7
 
                                    ARTICLE IV
REPRESENTATIONS AND WARRANTIES OF IPT........................................   A-8
  SECTION 4.1    Organization and Qualification of IPT.......................   A-8
  SECTION 4.2    Organization and Qualification of IPLP......................   A-8
  SECTION 4.3    Capitalization..............................................   A-8
  SECTION 4.4    Authority; Non-Contravention................................   A-8
  SECTION 4.5    Tax Matters.................................................   A-9
  SECTION 4.6    Vote Required...............................................   A-9
  SECTION 4.7    AMIT Merger.................................................   A-9
  SECTION 4.8    Opinion of Financial Advisor................................   A-9
  SECTION 4.9    Brokers.....................................................   A-9
  SECTION 4.10   Absence of Inducement.......................................   A-9
  SECTION 4.11   Restricted IPT Common Shares................................  A-10
 
                                     ARTICLE V
REPRESENTATIONS AND WARRANTIES OF AIMCO......................................  A-10
  SECTION 5.1    Organization and Qualification..............................  A-10
  SECTION 5.2    Capitalization..............................................  A-10
  SECTION 5.3    Authority; Non-Contravention; Required Filings..............  A-11
  SECTION 5.4    Reports and Financial Statements............................  A-12
  SECTION 5.5    Absence of Certain Changes or Events........................  A-12
  SECTION 5.6    Registration Statement, Information Statement/Prospectus and
                 Schedule 13E-3..............................................  A-12
  SECTION 5.7    No Vote Required............................................  A-13
  SECTION 5.8    Tax Matters.................................................  A-13
  SECTION 5.9    Brokers.....................................................  A-14
  SECTION 5.10   Absence of Inducement.......................................  A-14
  SECTION 5.11   Conduct of IPT's Business...................................  A-14
  SECTION 5.12   Authority; Non-Contravention; Required Filings..............  A-14
</TABLE>
 
                                       A-i
<PAGE>   358
 
<TABLE>
<CAPTION>
                                                                               Page
                                                                               ----
<S>              <C>                                                           <C>
                                    ARTICLE VI
ADDITIONAL AGREEMENTS........................................................  A-14
  SECTION 6.1    IPT and IPLP Distributions..................................  A-14
  SECTION 6.2    Registration Statement, Information Statement/Prospectus and
                 Schedule 13E-3..............................................  A-15
  SECTION 6.3    Regulatory Matters..........................................  A-16
  SECTION 6.4    Shareholder Approval........................................  A-16
  SECTION 6.5    Vote of IPT Common Shares Owned by AIMCO....................  A-17
  SECTION 6.6    Public Announcements........................................  A-17
  SECTION 6.7    Expenses....................................................  A-17
  SECTION 6.8    Further Assurances..........................................  A-17
  SECTION 6.9    Transfer Taxes..............................................  A-18
  SECTION 6.10   IPT Trustees and Officers...................................  A-18
  SECTION 6.11   Modification of Form of Transaction.........................  A-19
  SECTION 6.12   Indemnification.............................................  A-19
  SECTION 6.13   Insurance...................................................  A-20
  SECTION 6.14   Conduct of IPT's Business Pending the Effective Time........  A-21
 
                                    ARTICLE VII
CONDITIONS...................................................................  A-22
  SECTION 7.1    Conditions to Each Party's Obligation to Effect the
                 Merger......................................................  A-22
  SECTION 7.2    Additional Conditions to Obligation of IPT to Effect the
                 Merger......................................................  A-22
  SECTION 7.3    Additional Conditions to Obligation of AIMCO to Effect the
                 Merger......................................................  A-23
 
                                   ARTICLE VIII
TERMINATION, AMENDMENT AND WAIVER............................................  A-24
  SECTION 8.1    Termination.................................................  A-24
  SECTION 8.2    Effect of Termination.......................................  A-25
  SECTION 8.3    Amendment...................................................  A-27
  SECTION 8.4    Waiver......................................................  A-27
 
                                    ARTICLE IX
GENERAL PROVISIONS...........................................................  A-28
  SECTION 9.1    Survival of Representations, Warranties, Covenants
                 and Agreements..............................................  A-28
  SECTION 9.2    Notices.....................................................  A-28
  SECTION 9.3    Adjustment for Dilution.....................................  A-29
  SECTION 9.4    Entire Agreement............................................  A-29
  SECTION 9.5    Assignment..................................................  A-29
  SECTION 9.6    Governing Law...............................................  A-29
  SECTION 9.7    Interpretation..............................................  A-29
  SECTION 9.8    Counterparts; Effect........................................  A-29
  SECTION 9.9    Parties' Interest...........................................  A-29
  SECTION 9.10   Enforcement.................................................  A-29
  SECTION 9.11   Severability................................................  A-30
  SECTION 9.12   Letter Agreement............................................  A-30
  SECTION 9.13   Knowledge...................................................  A-30
  SECTION 9.14   Breaches....................................................  A-30
</TABLE>
 
                                      A-ii
<PAGE>   359
 
                             INDEX OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Agreement...................................................   A-1
AIMCO.......................................................   A-1
AIMCO Benefit Plans.........................................  A-10
AIMCO Board.................................................   A-1
AIMCO Class B Common Stock..................................  A-10
AIMCO Collar Price..........................................   A-3
AIMCO Committee.............................................   A-2
AIMCO Common Stock..........................................   A-3
AIMCO Exchange Value........................................   A-3
AIMCO Material Adverse Effect...............................  A-10
AIMCO OP....................................................   A-1
AIMCO Preferred Stock.......................................  A-10
AIMCO Reference Period......................................   A-3
AIMCO Reference Price.......................................   A-3
AIMCO REIT Opinion..........................................  A-23
AIMCO Reorganization Opinion................................  A-23
AIMCO Required Filings......................................  A-12
AIMCO Restricted Shares.....................................   A-5
AIMCO SEC Reports...........................................  A-12
AIMCO Termination Reference Price...........................  A-25
AIMCO Termination Share Value...............................  A-25
AIMCO-nominated Trustees....................................   A-2
Alternative Proposal........................................  A-24
AMIT........................................................   A-1
AMIT Merger.................................................   A-1
Cash Amount.................................................   A-3
Cash Election Notice........................................   A-3
Cash Percentage.............................................   A-3
Certificate.................................................   A-4
Closing.....................................................   A-7
Closing Date................................................   A-7
Code........................................................   A-2
Common Partnership Unit.....................................  A-25
Continuing Trusteeship......................................  A-18
Control.....................................................  A-25
Controlled AIMCO Entity.....................................  A-25
Controlled IPT Entity.......................................  A-25
Conversion Ratio............................................   A-3
Covered IPT Assets..........................................  A-25
Covered Third-Party Assets..................................  A-25
Effective Time..............................................   A-3
Effective Time Charter......................................   A-2
Excess Distribution Amount..................................   A-4
Exchange Act................................................  A-12
Exchange Fund...............................................   A-5
Executive Committee.........................................   A-2
First Amended and Restated Agreement........................   A-1
Financial Institution.......................................  A-17
GAAP........................................................  A-12
</TABLE>
 
                                      A-iii
<PAGE>   360
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Governmental Authority......................................  A-12
HUD.........................................................  A-12
IFG.........................................................   A-1
IFG Agreement...............................................   A-1
IFG Merger..................................................   A-1
Indemnitee..................................................  A-19
Information Statement/Prospectus............................  A-13
IPLP........................................................   A-8
IPLP Limited Partnership Agreement..........................   A-8
IPT.........................................................   A-1
IPT Board...................................................   A-1
IPT Bylaws..................................................   A-2
IPT Common Shares...........................................   A-1
IPT Declaration.............................................   A-8
IPT Exchange Value..........................................   A-4
IPT Final Distribution Amount...............................  A-14
IPT Meeting.................................................   A-8
IPT Meeting Date............................................  A-16
IPT Preferred Shares........................................   A-8
IPT Share Plan..............................................   A-5
IPT Shareholders............................................   A-1
IPT Shareholders' Approval..................................   A-8
IPT Termination Share Value.................................  A-26
IPT Unwind Consideration....................................  A-26
Law.........................................................  A-11
Lehman Opinion..............................................   A-1
Losses......................................................  A-19
MCAA........................................................   A-2
MGCL........................................................   A-2
Merger......................................................   A-1
Merger Consideration........................................   A-4
NYSE........................................................   A-3
Original Agreement..........................................   A-1
Outstanding IPT Common Shares...............................   A-4
Paying Agent................................................   A-5
Person......................................................   A-4
Proxyholders................................................  A-17
Registration Statement......................................  A-12
REIT........................................................   A-2
Restricted Share............................................   A-5
Schedule 13E-3..............................................  A-13
SEC.........................................................  A-12
Securities Act..............................................  A-12
Special AIMCO Distribution..................................  A-14
Status Requirements.........................................   A-9
Stock Percentage............................................   A-4
Subsidiary..................................................   A-4
Superior Proposal...........................................  A-24
Surviving Entity............................................   A-2
Tax Return..................................................   A-9
Taxes.......................................................   A-9
</TABLE>
 
                                      A-iv
<PAGE>   361
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Termination Date............................................  A-26
Third-Party Unwind Consideration............................  A-26
Third-Party Unwind Price....................................  A-26
TPI.........................................................   A-1
Transfer Taxes..............................................  A-18
Violation...................................................  A-11
Voting Debt.................................................   A-8
</TABLE>
 
                                       A-v
<PAGE>   362
 
                          SECOND AMENDED AND RESTATED
                          AGREEMENT AND PLAN OF MERGER
 
SECOND AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER (this "Agreement"),
dated as of January 22, 1999, by and between Apartment Investment and Management
Company, a Maryland corporation ("AIMCO") and Insignia Properties Trust, a
Maryland real estate investment trust ("IPT").
 
WHEREAS, AIMCO and IPT have previously entered into an Agreement and Plan of
Merger, dated as of October 1, 1998 (the "Original Agreement"), and AIMCO, IPT
and TPI Acquisition Trust, a Maryland real estate investment trust ("TPI"),
entered into an Amended and Restated Agreement and Plan of Merger, dated as of
December 7, 1998 (the "First Amended and Restated Agreement"), and AIMCO and IPT
now wish to amend and restate the Original Agreement and the First Amended and
Restated Agreement in their entirety, with the effect of superseding and
extinguishing any obligations under the Original Agreement or under the First
Amended and Restated Agreement and TPI has consented to such amendment and
restatement;
 
WHEREAS, pursuant to an Agreement and Plan of Merger, dated as of July 18, 1997,
by and among Angeles Mortgage Investment Trust, an unincorporated California
business trust ("AMIT"), IPT, Insignia Financial Group, Inc., a Delaware
corporation ("IFG"), and MAE GP Corporation, a Delaware corporation, AMIT merged
with and into IPT on September 17, 1998, with IPT being the surviving entity
(the "AMIT Merger");
 
WHEREAS, pursuant to an Amended and Restated Agreement and Plan of Merger, dated
as of May 26, 1998 (the "IFG Agreement"), by and among AIMCO, AIMCO Properties,
L.P., a Delaware limited partnership ("AIMCO OP"), IFG and Insignia/ESG
Holdings, Inc., a Delaware corporation, IFG merged with and into AIMCO on
October 1, 1998, with AIMCO being the surviving entity (the "IFG Merger");
 
WHEREAS, the IFG Agreement requires AIMCO to propose to acquire IPT by merger
and to use its reasonable best efforts to consummate such merger within three
months following the effective time of the IFG Merger, and the performance of
AIMCO's obligations under this Agreement, if it uses its reasonable best efforts
to consummate such merger within such period, will constitute AIMCO's
performance of such obligations under the IFG Agreement;
 
WHEREAS, it is the intention of the parties that IPT merge with and into AIMCO,
with AIMCO being the surviving entity (the "Merger"), on the terms and subject
to the conditions set forth herein;
 
WHEREAS, the Board of Trustees of IPT (the "IPT Board") received the written
opinion of Lehman Brothers Inc., dated October 1, 1998 (the "Lehman Opinion"),
that the amount of the Merger Consideration (as defined in Section 2.1(b)) is
fair from a financial point of view to the holders (the "IPT Shareholders") of
common shares of beneficial interest, par value $.01 per share, of IPT ("IPT
Common Shares"), other than IFG and AIMCO and their respective Subsidiaries (as
defined in Section 2.1(a));
 
WHEREAS, the Board of Directors of AIMCO (the "AIMCO Board") and the IPT Board
approved the Merger, upon the terms and subject to the conditions set forth in
the Original Agreement;
 
WHEREAS, (i) Ronald Uretta and Ronald J. Consiglio resigned from the IPT Board,
(ii) the size of the IPT Board was increased to eleven and each of the trustee
candidates
 
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<PAGE>   363
 
designated by AIMCO listed on Schedule 6.10-1 hereto (together with their
successors, the "AIMCO-nominated Trustees") was elected as a trustee of IPT,
(iii) the officer candidates designated by AIMCO and listed on Schedule 6.10-2
hereto were appointed to the respective positions indicated on such Schedule,
(iv) a committee of the IPT Board, consisting of two AIMCO-nominated Trustees
(the "AIMCO Committee"), was formed and then authorized and empowered to act to
the extent set forth in the Third Amended and Restated Bylaws of IPT (the "IPT
Bylaws"), (v) the Continuing Trustees (as defined in the IPT Bylaws) were
authorized and empowered to act to the extent set forth in the IPT Bylaws (the
names of the persons who currently are Continuing Trustees are set forth on
Schedule 6.10-3) and (vi) an executive committee of the IPT Board, consisting of
the AIMCO-nominated Trustees listed on Schedule 6.10-4 (the "Executive
Committee"), was formed and then authorized and empowered to act to the extent
set forth in the IPT Bylaws; and
 
WHEREAS, the IPT Board (including all of the Continuing Trustees and with the
AIMCO-nominated trustees abstaining) and the AIMCO Board have each approved this
Agreement, as an amendment and restatement of the Original Agreement and the
First Amended and Restated Agreement; and
 
WHEREAS, AIMCO intends that, following the Merger, it shall continue to be
subject to taxation as a real estate investment trust (a "REIT") within the
meaning of the Internal Revenue Code of 1986, as amended (the "Code").
 
NOW, THEREFORE, in consideration of the premises and the representations,
warranties, covenants and agreements contained herein, the parties hereto,
intending to be legally bound hereby, agree as follows:
 
                                   ARTICLE I
 
                                   THE MERGER
 
SECTION 1.1  The Merger.
 
Upon the terms and subject to the conditions of this Agreement, at the Effective
Time (as defined in Section 1.3), IPT shall be merged with and into AIMCO in
accordance with the laws of the State of Maryland, and the separate existence of
IPT shall cease. AIMCO shall be the surviving entity in the Merger (hereinafter
sometimes referred to herein as the "Surviving Entity") and shall continue its
corporate existence under the laws of the State of Maryland.
 
SECTION 1.2  Effects of the Merger.
 
(a) At the Effective Time, (i) the charter of AIMCO, as in effect immediately
prior to the Effective Time (the "Effective Time Charter"), shall be the charter
of the Surviving Entity until thereafter amended as provided by law and the
Effective Time Charter, (ii) the by-laws of AIMCO, as in effect immediately
prior to the Effective Time, shall be the by-laws of the Surviving Entity until
thereafter amended as provided by law, the Effective Time Charter and such
by-laws and (iii) the directors and officers of AIMCO immediately prior to the
Effective Time shall be the initial directors and officers, respectively, of the
Surviving Entity.
 
(b) Subject to the foregoing, the additional effects of the Merger shall be as
provided in Section 3-114 of the Maryland General Corporation Law (the "MGCL")
and Section 8-501.1(n) of Title 8 of the Corporations and Associations Article
of the Annotated Code of Maryland (the "MCAA"). At the Effective Time, all the
properties, rights, privileges, powers
 
                                       A-2
<PAGE>   364
 
and franchises of IPT shall vest in the Surviving Entity, and all debts,
liabilities and duties of IPT shall become the debts, liabilities and duties of
the Surviving Entity.
 
SECTION 1.3  Effective Time of the Merger. On the Closing Date (as defined in
Section 3.1), articles of merger shall be executed and filed by AIMCO and IPT
with the State Department of Assessments and Taxation of Maryland pursuant to
the MGCL and the MCAA. The Merger shall become effective as of the date and at
such time as the articles of merger are accepted for record by the State
Department of Assessments and Taxation of Maryland (the date and time the Merger
becomes effective pursuant to MCAA and the MGCL being referred to as the
"Effective Time").
 
                                   ARTICLE II
 
                              TREATMENT OF SHARES
 
SECTION 2.1  Effect of the Merger on Outstanding Shares.
 
(a) Certain Definitions. As used in this Agreement, the following terms have the
following meanings:
 
"AIMCO Collar Price" means $36.8781, which was the average price (computed based
on the sum of the daily high and low sales prices of AIMCO Common Stock (as
reported in The Wall Street Journal under the caption New York Stock Exchange
("NYSE") Composite Transactions or, if not published therein, in another
authoritative source) divided by two) of a share of AIMCO Common Stock during
the ten consecutive NYSE trading day period ended on and including December 31,
1998.
 
"AIMCO Common Stock" means the Class A Common Stock, par value $.01 per share,
of AIMCO.
 
"AIMCO Exchange Value" means the lesser of the AIMCO Collar Price or the AIMCO
Reference Price.
 
"AIMCO Reference Period" means the ten consecutive NYSE-trading day period
ending on and including the NYSE trading day immediately preceding the IPT
Meeting Date (as defined in Section 6.4).
 
"AIMCO Reference Price" means the average price (computed based on the sum of
the daily high and low sales prices of AIMCO Common Stock (as reported in The
Wall Street Journal under the caption NYSE Composite Transactions, or, if not
published therein, in another authoritative source) divided by two) of a share
of AIMCO Common Stock during the AIMCO Reference Period.
 
"Cash Amount" means an amount equal to: (a) $13.25; plus (b) if the Effective
Time occurs on or after February 1 and on or before February 28, 1999, $.0036
multiplied by the number of days that have elapsed from and including January 1,
1999 through and including the day immediately preceding the Effective Time;
minus (c) the Excess Distribution Amount.
 
"Cash Election Notice" is defined in Section 2.1(d).
 
"Cash Percentage" is defined in Section 2.1(c).
 
"Conversion Ratio" means the IPT Exchange Value divided by the AIMCO Exchange
Value.
 
                                       A-3
<PAGE>   365
 
"Excess Distribution Amount" is defined in Section 6.1(e).
 
"IPT Exchange Value" means (i) $13.28 minus (ii) the Excess Distribution Amount.
 
"Person" means any individual, partnership, corporation, limited liability
company, association, joint stock company, trust, joint venture, unincorporated
organization and governmental entity or any department, agency or political
subdivision thereof.
 
"Stock Percentage" means a percentage equal to 100% minus the Cash Percentage.
 
"Subsidiary" means, as to any Person, any other Person of which at least a
majority of the voting power represented by the outstanding shares of capital
stock or other voting securities or interests (including, without limitation,
general partner interests) having voting power under ordinary circumstances to
elect directors or similar members of the governing body of such other Person
shall at the time be held, directly or indirectly, by such first Person, except
that IPT shall not be considered, for purposes of this Agreement, to be a
Subsidiary of AIMCO.
 
(b) Merger Consideration. Subject to Section 2.1(d), as of the Effective Time,
by virtue of the Merger and without any action on the part of any IPT
Shareholder:
 
     (i) Each IPT Common Share issued and outstanding immediately prior to the
     Effective Time, other than IPT Common Shares cancelled according to Section
     2.1(b)(ii) ("Outstanding IPT Common Shares"), shall be converted into and
     become the right to receive (x) the number of shares of AIMCO Common Stock
     equal to the Stock Percentage multiplied by the Conversion Ratio plus (y)
     an amount in cash equal to the Cash Percentage multiplied by the Cash
     Amount ((x) together with the right to receive cash in lieu of fractional
     interests pursuant to Section 2.4 and (y), the "Merger Consideration").
 
     (ii) Each IPT Common Share owned, directly or indirectly, by AIMCO, IPT or
     any of their respective subsidiaries immediately prior to the Effective
     Time shall automatically be canceled and retired and shall cease to exist,
     and no Merger Consideration or other consideration shall be issued or
     delivered in exchange therefor.
 
     (iii) All the Outstanding IPT Common Shares, when so converted in
     accordance with this Section 2.1, shall no longer be outstanding and shall
     automatically be canceled and retired and shall cease to exist, and each
     holder of a certificate (a "Certificate") which, immediately prior to the
     Effective Time, represented Outstanding IPT Common Shares shall cease to
     have any rights with respect thereto, except (i) the right to receive any
     dividend or other distribution on IPT Common Shares with a record date
     prior to the Effective Time and (ii) upon surrender of such Certificate,
     (x) the right to receive the Merger Consideration and (y) to the extent the
     Merger Consideration consists of AIMCO Common Stock, any dividend or other
     distribution on the AIMCO Common Stock with a record date on or after the
     date on which the Effective Time occurs and paid prior to the time such
     Certificate is surrendered.
 
(c) Cash Election. Not later than the close of business on the second NYSE
trading day immediately preceding the first day of the AIMCO Reference Period,
AIMCO shall deliver to the Secretary of IPT an irrevocable written notice (the
"Cash Election Notice") in which AIMCO specifies a percentage, from 0% to 100%,
of the Merger Consideration to be paid in cash (the "Cash Percentage"), subject
to the proviso in Section 7.2(e). IPT shall, and AIMCO shall use its best
efforts to cause IPT to, issue, on the date the Cash Election Notice
 
                                       A-4
<PAGE>   366
 
is required to be delivered, via the Dow Jones News Service and PR Newswire, a
press release announcing the extent to which the Merger Consideration is to be
paid in each of shares of AIMCO Common Stock and cash. Notwithstanding the
foregoing, if (x) AIMCO fails to timely deliver the Cash Election Notice or (y)
the Effective Time is on or after March 1, 1999, then the Cash Percentage shall,
subject to the proviso in Section 7.2(e), equal 0%, regardless of whether a Cash
Election Notice had been previously properly delivered.
 
(d) Restricted IPT Common Shares.
 
     (i) Treatment. Each restricted IPT Common Share awarded under the Insignia
     Properties Trust 1997 share Incentive Plan (the "IPT Share Plan") which is
     outstanding and unvested at the Effective Time (each a "Restricted Share")
     shall, by virtue of this Agreement and without any further action of IPT,
     AIMCO or the holder of such Restricted Share, be converted at the Effective
     Time into a number of restricted shares of AIMCO Common Stock ("AIMCO
     Restricted Shares") equal to the Conversion Ratio. Each such AIMCO
     Restricted Share shall continue to have, and be subject to, the same terms
     and conditions (including rights to Dividend Equivalents (as defined in the
     IPT Share Plan)) set forth in the IPT Share Plan and the applicable
     restricted share agreement, each as in effect immediately prior to the
     Effective Time.
 
     (ii) Registration. AIMCO shall (A) cause the AIMCO Restricted Shares issued
     pursuant to Section 2.1(d)(i) to be covered by an effective registration
     statement on Form S-8 (or any successor or other appropriate forms) and (B)
     use its reasonable best efforts to maintain the effectiveness of such
     registration statement (and maintain the current status of the prospectus
     contained therein) for so long as the AIMCO Restricted Shares remain
     outstanding.
 
SECTION 2.2  Surrender of Certificates.
 
(a) AIMCO shall deposit, or shall cause to be deposited, at the Effective Time
with the paying agent selected by AIMCO (the "Paying Agent") (i) certificates
representing shares of AIMCO Common Stock and (ii) funds as necessary to make
issuances or payments of the Merger Consideration (including cash to be paid in
lieu of fractional interests pursuant to Section 2.4) (such certificates and
funds being hereinafter referred to as the "Exchange Fund"). If the Merger
Consideration includes AIMCO Common Stock, and any dividend or other
distribution on the AIMCO Common Stock with a record date on or after the
Effective Time and paid prior to the time any Certificate is surrendered, AIMCO
will deposit such amounts in the Exchange Fund until six months after the
Effective Time. Out of the Exchange Fund, the Paying Agent shall make, pursuant
to irrevocable instructions from AIMCO, the issuances and payments referred to
in Sections 2.1(b) and 2.4, and the Exchange Fund shall not be used for any
other purpose. The Paying Agent may invest portions of the Exchange Fund as
AIMCO may direct, provided that such investments be in obligations of, or
guaranteed by, the United States of America, in commercial paper obligations
receiving the highest rating from either Moody's Investors Service or Standard &
Poor's Corporation or in certificates of deposit, bank repurchase agreements or
bankers' acceptances of commercial banks with capital exceeding $100,000,000.
Any net profit resulting from, or interest or income produced by, such
investments shall be payable to AIMCO. AIMCO shall replace any monies lost
through any investment made pursuant to this Section 2.2(a) upon request
therefor by the Paying Agent.
 
                                       A-5
<PAGE>   367
 
(b) As soon as practicable after the Effective Time, AIMCO shall cause the
Paying Agent to mail to each holder of record of an Outstanding IPT Common
Share: (i) a letter of transmittal (which shall specify that delivery shall be
effected, and risk of loss and title to the Certificates shall pass, only upon
actual delivery of the Certificates to the Paying Agent); and (ii) instructions
for use in effecting the surrender of the Certificates in exchange for the
Merger Consideration. Upon surrender of a Certificate to the Paying Agent for
exchange (or to such other agent or agents as may be appointed by AIMCO),
together with a duly executed letter of transmittal and such other documents as
the Paying Agent shall require, the holder of such Certificate shall be entitled
to receive, in exchange therefor: (A) a certificate or certificates representing
that number of whole shares of AIMCO Common Stock which such holder has the
right to receive pursuant to the provisions of Section 2.1(b), and cash in lieu
of fractional interests pursuant to Section 2.4; and (B) the amount of cash
which such holder has the right to receive pursuant to the provisions of Section
2.1(b). If payment is to be made to a Person other than the one in whose name a
surrendered Certificate is registered, it shall be a condition of receipt of the
Merger Consideration that the Certificate so surrendered be properly endorsed or
otherwise in proper form for transfer and that the Person requesting such
payment either pay any transfer or other taxes required by reason of the payment
to a Person other than the registered holder of the Certificate surrendered or
establish to the satisfaction of the Paying Agent that such tax has been paid or
is not applicable. Until surrendered in accordance with the provisions of this
Section 2.2, after the Effective Time, each Certificate shall represent for all
purposes only the right to receive the portion of the Exchange Fund that
corresponds to the amount in cash and number of shares of AIMCO Common Stock
such Certificate represents.
 
(c) Any portion of the Exchange Fund that remains unclaimed six months after the
Effective Time shall be returned to AIMCO upon its request made to the Paying
Agent, after which time the holder of any unsurrendered Certificate shall look
only to AIMCO for payment of (i) the Merger Consideration and (ii) to the extent
the Merger Consideration consists of AIMCO Common Stock, any dividends and other
distributions on the AIMCO Common Stock with a record date on or after the
Effective Time and paid prior to the time such Certificate is surrendered. AIMCO
shall not be liable to any Person for any funds delivered to a public official
pursuant to any applicable abandoned property, escheat or similar law.
 
SECTION 2.3  Closing of Transfer Books; Etc. From and after the Effective Time,
the share transfer books of IPT shall be closed, and no registration of any
transfer of any Outstanding IPT Common Shares shall thereafter be made on the
records of IPT. If, after the Effective Time, any Certificate is presented to
AIMCO for any reason, it shall be canceled, and each Outstanding IPT Common
Share represented thereby shall be exchanged for (i) the Merger Consideration
and (ii) to the extent the Merger Consideration consists of AIMCO Common Stock,
any dividend or other distribution on the AIMCO Common Stock with a record date
on or after the Effective Time and paid prior to the time the Certificate is
surrendered. Any shares of AIMCO Common Stock issued in the Merger shall be
issued as of, and be deemed to be outstanding as of, the Effective Time. AIMCO
shall cause all such shares of AIMCO Common Stock issued pursuant to the Merger
to be duly authorized, validly issued, full paid and nonassessable and not
subject to preemptive rights. In the event any Certificate(s) shall have been
lost, stolen or destroyed, upon the making of any affidavit of that fact by the
IPT Shareholder claiming such Certificate(s) to be lost, stolen or destroyed
and, if reasonably required by AIMCO or the Paying Agent, upon the posting by
such IPT Shareholder of a bond in such amount as reasonably determined as
indemnity against any claim that may be
 
                                       A-6
<PAGE>   368
 
made against either of them with respect to such Certificate(s), the Paying
Agent shall issue the Merger Consideration in respect of each Outstanding IPT
Common Share represented by such lost, stolen or destroyed Certificate(s). If
the Merger Consideration consists of AIMCO Common Stock, appropriate procedures
shall be established by AIMCO and the Paying Agent so that each holder of a
Certificate at the Effective Time shall be entitled to vote on all matters
subject to the vote of holders of AIMCO Common Stock with a record date on or
after the Effective Time, whether or not such Certificate holder shall have
surrendered Certificates in accordance with the provisions of this Agreement.
For purposes of the immediately preceding sentence, AIMCO may rely conclusively
on the shareholder records of IPT in determining the identity of, and the number
of Outstanding IPT Common Shares held by, each holder of a Certificate at the
Effective Time.
 
SECTION 2.4  No Fractional Shares.
 
(a) No scrip or fractional share certificate for AIMCO Common Stock will be
issued upon the surrender for exchange of Certificates, and an outstanding
fractional share interest will not entitle the owner thereof to vote, to receive
dividends or to any rights of a stockholder of AIMCO or of the Surviving
Corporation with respect to such fractional share interest.
 
(b) In lieu of any fractional shares of AIMCO Common Stock, each holder of an
IPT Common Share that otherwise would be entitled to a fractional share of AIMCO
Common Stock, shall receive a cash payment in lieu of such fractional share of
AIMCO Common Stock equal to such shareholder's proportionate interest in a share
of AIMCO Common Stock multiplied by the AIMCO Reference Price, determined as of
the Effective Time.
 
SECTION 2.5  No Other Rights. Upon consummation of the Merger, the holder of a
Certificate at and after the Effective Time shall have no rights under this
Agreement with respect to the Outstanding IPT Common Shares represented thereby
other than the right to receive (a) the Merger Consideration, (b) to the extent
the Merger Consideration consists of AIMCO Common Stock, any dividend or other
distribution on the AIMCO Common Stock with a record date on or after the
Effective Time and paid prior to the time such Certificate is surrendered and
(c) any unpaid dividend or other distribution on IPT Common Shares with a record
date prior to the Effective Time. Nothing in this Agreement supersedes the right
of the IPT Shareholders to enforce Section 5.6 for the period provided in
Section 9.1.
 
                                  ARTICLE III
 
                                  THE CLOSING
 
SECTION 3.1  Closing. The closing of the Merger (the "Closing") shall take place
at the offices of Skadden, Arps, Slate, Meagher & Flom LLP, 919 Third Avenue,
New York, New York 10022, at 12:00, noon, local time, on the business day on
which all of the conditions set forth in Article VII hereof are first fulfilled
or have been waived, provided that all of the conditions set forth in Article
VII hereof continue to be so satisfied or waived on such day, and if not so
satisfied or waived, the Closing shall be automatically extended from time to
time until the first subsequent day on which all such conditions are again so
satisfied or waived, subject, however, to Article VIII hereof, or shall take
place at such other time, date and place as AIMCO and IPT shall mutually agree
(the "Closing Date").
 
                                       A-7
<PAGE>   369
 
                                   ARTICLE IV
 
                     REPRESENTATIONS AND WARRANTIES OF IPT
 
IPT represents and warrants to AIMCO as follows:
 
SECTION 4.1  Organization and Qualification of IPT. As of October 1, 1998, IPT
was a real estate investment trust which had been duly formed and was validly
existing and in good standing under the laws of the State of Maryland. IPT has
furnished to AIMCO true and complete copies of IPT's Declaration of Trust (the
"IPT Declaration") and the IPT Bylaws, each as is in effect on the date of the
Original Agreement.
 
SECTION 4.2  Organization and Qualification of IPLP. As of October 1, 1998,
Insignia Properties, L.P. ("IPLP") was a limited partnership which had been duly
formed and was validly existing and in good standing under the laws of the State
of Delaware on such date. IPT has furnished to AIMCO true and complete copies of
the Fourth Amended and Restated Agreement of Limited Partnership of IPLP as in
effect on the date of the Original Agreement (the "IPLP Limited Partnership
Agreement"). As of October 1, 1998 and prior to the effective time of the IFG
Merger, the sole general partner of IPLP was IPT, and the limited partners of
IPLP were IFG and Insignia Capital Corporation, a Delaware corporation (which
was a wholly-owned Subsidiary of IFG).
 
SECTION 4.3  Capitalization. At the date hereof, the authorized shares of
beneficial interest of IPT consist of 400,000,000 IPT Common Shares and
100,000,000 preferred shares of beneficial interest, par value $.01 per share,
of IPT ("IPT Preferred Shares"). At the date hereof, 23,484,538 IPT Common
Shares are issued and outstanding, and (a) no IPT Common Shares are held by
IPT's Subsidiaries, (b) no IPT Preferred Shares are issued and (c) no bonds,
debentures, notes or other indebtedness having the right to vote (or convertible
into securities having the right to vote) on any matters on which shareholders
of IPT may vote ("Voting Debt") were issued or outstanding. At the date hereof,
all outstanding IPT Common Shares are validly issued, fully paid and
nonassessable and are not subject to preemptive rights. On the date hereof,
there are no outstanding subscriptions, calls, options, contracts, voting
trusts, proxies or other commitments, understandings, restrictions,
arrangements, rights or warrants, including any right of conversion or exchange
under any outstanding security, instrument or other agreement, obligating IPT or
IPLP to issue, deliver or sell, or cause to be issued, delivered or sold,
additional IPT Common Shares, IPT Preferred Shares or other ownership interests
in IPT or IPLP or any Voting Debt of IPT or IPLP or obligating IPT or IPLP to
grant, extend or enter into any such agreement or commitment.
 
SECTION 4.4  Authority; Non-Contravention.
 
(a) Authority. IPT had, as of October 1, 1998, and has, as of the date hereof,
all requisite trust power and authority to enter into the Original Agreement and
this Agreement, respectively, and, subject to obtaining the affirmative vote of
a majority of the IPT Common Shares outstanding on the record date for the
meeting of IPT Shareholders for the purpose of voting on this Agreement, the
Merger and the other transactions contemplated hereby, including adjournments
and postponements thereof (the "IPT Meeting"), at which such vote is taken (the
"IPT Shareholders' Approval"), to consummate the transactions contemplated
thereby and hereby. The execution and delivery of the Original Agreement and the
consummation by IPT of the transactions contemplated thereby have been duly
authorized by the IPT Board. The execution and delivery of this Agreement and
the consummation by IPT of the transactions contemplated hereby have been duly
authorized by the IPT Board
 
                                       A-8
<PAGE>   370
 
(including all of the Continuing Trustees and with the AIMCO-nominated Trustees
abstaining), which constitutes all necessary trust action on the part of IPT,
subject to obtaining the IPT Shareholders' Approval. The Original Agreement and
this Agreement each have been duly and validly executed and delivered by IPT
and, assuming the due authorization, execution and delivery hereof by AIMCO,
this Agreement constitutes the legal, valid and binding obligation of IPT
enforceable against IPT in accordance with its terms.
 
(b) Non-Contravention. As of October 1, 1998, the execution and delivery of the
Original Agreement by IPT did not, and as of the date hereof, the execution and
delivery of this Agreement, will not, in any respect, violate, conflict with or
result in a breach of any provision of the IPT Declaration or the IPT Bylaws.
Subject to obtaining the IPT Shareholders' Approval, the consummation of the
transactions contemplated hereby will not, in any respect, violate, conflict
with or result in a breach of any provision of the IPT Declaration or the IPT
Bylaws.
 
SECTION 4.5  Tax Matters. "Taxes," as used in this Agreement, unless otherwise
stated, means any and all Federal, state, local and foreign taxes, including,
without limitation, income, sales and use, withholding, transfer, franchise,
real and personal property, employment and payroll taxes, together with any
interest, penalties and additions thereto. "Tax Return," as used in this
Agreement, means any report, return or other information required to be supplied
to any person with respect to Taxes.
 
(a) REIT Classification. At all times from the date of its organization to and
including October 1, 1998, IPT has been organized and operated in conformity
with Sections 856-860 of the Code (the "Status Requirements"), and its method of
operation during such period satisfied the Status Requirements. The consummation
by IPT of the transactions contemplated by the Original Agreement and the
compliance with or fulfillment of the terms and provisions thereof by IPT would
not have adversely affected the qualification of IPT as a REIT for its taxable
year ending at the Effective Time.
 
(b) Subchapter C Earnings and Profits. As of October 1, 1998, IPT did not have
any earnings and profits in excess of $1 million accumulated in any non-REIT
year within the meaning of Section 857 of the Code, including as a result of the
AMIT Merger.
 
SECTION 4.6  Vote Required. The IPT Shareholders' Approval is the only vote of
the holders of any class of any outstanding shares of beneficial interest of IPT
that is required to approve this Agreement, the Merger and the other
transactions contemplated hereby.
 
SECTION 4.7  AMIT Merger. AMIT was merged with and into IPT on September 17,
1998.
 
SECTION 4.8  Opinion of Financial Advisor. On October 1, 1998, the IPT Board
received the Lehman Opinion, which opines that the Merger Consideration is fair
from a financial point of view to the holders of IPT Common Shares other than
IFG and AIMCO and their respective Subsidiaries.
 
SECTION 4.9  Brokers. As of October 1, 1998, except for Lehman Brothers Inc., no
broker, finder or investment banker is entitled to any broker's, finder's or
other fee or commission in connection with the Merger or the transactions
contemplated by this Agreement based upon arrangements made by or on behalf of
IPT.
 
SECTION 4.10  Absence of Inducement. In entering into this Agreement, IPT has
not been induced by, or relied upon, any representations, warranties, or
statements by AIMCO not set forth or referred to in this Agreement, the
schedules hereto or the other documents required
 
                                       A-9
<PAGE>   371
 
to be delivered hereby, whether or not such representations, warranties, or
statements have actually been made, in writing or orally; and IPT acknowledges
that, in entering into this Agreement, AIMCO has been induced by and relied upon
the representations and warranties of IPT herein set forth and in the other
documents required to be delivered hereby. IPT made its own investigation of
AIMCO prior to the execution of this Agreement and has not been induced by or
relied upon any representations, warranties or statements as to the advisability
of entering into this Agreement other than as set forth above or in the AIMCO
SEC Reports (as defined in Section 5.4).
 
SECTION 4.11  Restricted IPT Common Shares. There will not be more than 450,000
Restricted Shares outstanding at the Effective Time.
 
                                   ARTICLE V
 
                    REPRESENTATIONS AND WARRANTIES OF AIMCO
 
AIMCO represents and warrants to IPT as follows:
 
SECTION 5.1  Organization and Qualification. As of October 1, 1998, AIMCO was,
and as of the date hereof AIMCO is, a corporation duly organized, validly
existing and in good standing under the laws of the State of Maryland. As of
October 1, 1998 AIMCO was, and as of the date hereof AIMCO, is duly qualified
and in good standing to do business in each jurisdiction where such
qualification is required, other than in such jurisdictions where the failure to
so qualify would not have, individually or in the aggregate, a material adverse
effect on the business, assets, financial condition, results of operations or
prospects of AIMCO and its Subsidiaries taken as a whole (an "AIMCO Material
Adverse Effect"). As of October 1, 1998, AIMCO had and, as of the date hereof
AIMCO has, all requisite corporate power and authority, and, as of October 1,
1998, had and, as of the date hereof, AIMCO has been duly authorized by all
necessary approvals and orders, to own, lease and operate its assets and
properties to the extent owned, leased and operated and to carry on it business
as it was then being conducted.
 
SECTION 5.2  Capitalization.
 
(a) As of October 1, 1998, the authorized stock of AIMCO consisted of
486,027,500 shares of AIMCO Common Stock, 262,500 shares of Class B Common
Stock, par value $.01 per share ("AIMCO Class B Common Stock"), and 24,460,000
shares of Preferred Stock, par value $.01 per share ("AIMCO Preferred Stock").
As of October 1, 1998, (i) 47,982,057 shares of AIMCO Common Stock were issued
and outstanding, (ii) 162,500 shares of AIMCO Class B Common Stock were issued
and outstanding, (iii) 22,345,921 shares of AIMCO Preferred Stock were issued
and outstanding (including 750,000 shares of AIMCO Class B Cumulative
Convertible Preferred Stock, par value $.01 per share; 2,400,000 shares of AIMCO
9% Class C Cumulative Preferred Stock,par value $.01 per share; 4,200,000 shares
of AIMCO 8.75% Class D Cumulative Preferred Stock, par value $.01 per share;
8,945,921 shares of AIMCO Class E Cumulative Convertible Preferred Stock, par
value $.01 per share; 4,050,000 shares of AIMCO Class G Preferred Stock, par
value $.01 per share; and 2,000,000 shares of AIMCO Class H Preferred Stock, par
value $.01 per share), (iv) 5,362,879 shares of AIMCO Common Stock were reserved
for issuance upon the exchange of units of limited partnership in AIMCO OP, (v)
5,115,246 shares of AIMCO Common Stock were reserved for issuance pursuant to
the AIMCO benefit plans (the "AIMCO Benefit Plans") listed on Schedule 5.2
hereof and
 
                                      A-10
<PAGE>   372
 
outstanding warrants, (vi) 11,408,973 shares of AIMCO Common Stock were reserved
for issuance upon conversion of AIMCO Preferred Stock, (vii) 162,500 shares of
AIMCO Common Stock were reserved for issuance upon conversion of AIMCO Class B
Common Stock and (viii) no Voting Debt of AIMCO was issued or outstanding.
 
(b) As of October 1, 1998, all outstanding shares of AIMCO Common Stock and
AIMCO Preferred Stock were validly issued, fully paid and nonassessable and are
not subject to preemptive rights.
 
(c) Upon consummation of the Merger and issuance, if applicable, of shares of
AIMCO Common Stock which comprise the Merger Consideration, all such shares will
be validly issued, fully paid and nonassessable and will not be subject to
preemptive rights.
 
(d) As of October 1, 1998, except as set forth on Schedule 5.2 hereof, there
were no outstanding subscriptions, calls, options, contracts, voting trusts,
proxies or other commitments, understandings, restrictions, arrangements, rights
or warrants, including any right of conversion or exchange under any outstanding
security, instrument or other agreement, obligating AIMCO or any of its
Subsidiaries to issue, deliver or sell, or cause to be issued, delivered or
sold, additional shares of capital stock or other ownership interest or any
Voting Debt of AIMCO or any of its Subsidiaries or obligating AIMCO or any
Subsidiary of AIMCO to grant, extend or enter into any such agreement or
commitment. Except as set forth on Schedule 5.2 hereof, after the Effective
Time, there will be no agreement or commitment of any character obligating AIMCO
or any of its Subsidiaries to issue, deliver or sell, or cause to be issued,
delivered or sold, any shares of capital stock or other ownership interest or
any Voting Debt of AIMCO or any of its Subsidiaries, or obligating AIMCO or any
Subsidiary of AIMCO to grant, extend or enter into any such agreement or
commitment.
 
(e) TPI has consented to the termination of its rights and obligations under the
First Amended and Restated Agreement and has approved this Agreement as an
amendment to the First Amended and Restated Agreement.
 
SECTION 5.3  Authority; Non-Contravention; Required Filings.
 
(a) Authority. AIMCO had on October 1, 1998, and AIMCO has on the date hereof,
all requisite corporate power and authority to enter into the Original Agreement
and this Agreement, respectively, and to consummate the transactions
contemplated hereby. The execution and delivery of the Original Agreement and
this Agreement and the consummation by AIMCO of the transactions contemplated
thereby and hereby have each been duly authorized by the AIMCO Board, which
constitutes all necessary corporate action on the part of AIMCO. Each of the
Original Agreement and this Agreement have been duly and validly executed and
delivered by AIMCO and, assuming the due authorization, execution and delivery
thereof and hereof by IPT, this Agreement constitutes the legal, valid and
binding obligation of each of AIMCO enforceable against AIMCO in accordance with
its terms.
 
(b) Non-Contravention. The execution and delivery of the Original Agreement did
not, the execution and delivery of this Agreement by AIMCO does not, and the
consummation of the transactions contemplated hereby will not, violate, conflict
with or result in a breach of (any such violation, conflict or breach is
referred to herein as a "Violation") any provision of (i) the charter of AIMCO,
as in effect on October 1, 1998 and on the date hereof, or the by-laws of AIMCO,
as in effect on October 1, 1998 and on the date hereof, (ii) any statute, law,
ordinance, rule, regulation, judgment, decree, order, injunction, writ, permit
or license of any governmental authority (a "Law") applicable to AIMCO or any
Subsidiary of AIMCO or
 
                                      A-11
<PAGE>   373
 
any of their respective properties or assets or (iii) any note, bond, mortgage,
indenture, credit enhancement agreement, deed of trust, license, franchise,
permit, concession, contract, lease or other instrument, obligation or agreement
of any kind to which AIMCO or any Subsidiary of AIMCO is a party or by which it
or any of its properties or assets may be bound or affected, except in the case
of clause (ii) or (iii) for any such Violation which would not have,
individually or in the aggregate, an AIMCO Material Adverse Effect.
 
(c) Required Filings. As of the date hereof, except as required under the
Securities Act of 1933, as amended (the "Securities Act"), the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and the rules of the NYSE
(the "AIMCO Required Filings"), no declaration, filing or registration with, or
notice to, or authorization, consent or approval of, any court, federal, state,
local or foreign government or regulatory body (including the United States
Department of Housing and Urban Development and/or applicable state housing
agencies (collectively, "HUD"), a stock exchange or other self-regulatory body)
or authority (each, a "Governmental Authority") is necessary for the execution
and delivery of this Agreement by AIMCO or the consummation by AIMCO of the
transactions contemplated hereby, except as would not result, individually or in
the aggregate, in an AIMCO Material Adverse Effect.
 
SECTION 5.4  Reports and Financial Statements. As of October 1, 1998, all
filings required to be made by AIMCO since December 31, 1997 under Section
13(a), 13(c), 14 or 15(d) of the Exchange Act (the "AIMCO SEC Reports") had been
filed with the Securities and Exchange Commission ( the "SEC"). The AIMCO SEC
Reports, as of their respective dates, complied in all material respects with
all applicable requirements of the appropriate statutes and the rules and
regulations thereunder. As of their respective dates, the AIMCO SEC Reports did
not contain any untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements therein,
in light of the circumstances under which they were made, not misleading. The
audited consolidated financial statements and unaudited interim financial
statements of AIMCO included in the AIMCO SEC Reports have been prepared in
accordance with generally accepted accounting principles ("GAAP") applied on a
consistent basis (except as may be indicated therein or in the notes thereto or,
with respect to unaudited interim financial statements, as permitted by Form
10-Q of the SEC) and fairly present, in all material respects, the financial
position of AIMCO as of the dates thereof and the results of its operations and
cash flows for the periods then ended, subject, in the case of the unaudited
interim financial statements, to normal, recurring audit and year-end
adjustments.
 
SECTION 5.5  Absence of Certain Changes or Events. As of October 1, 1998, except
as set forth in the AIMCO SEC Reports, since December 31, 1997, (a) each of
AIMCO and its Subsidiaries had conducted its business in the ordinary course of
business consistent with past practice, and (b) there had not been any AIMCO
Material Adverse Effect.
 
SECTION 5.6  Registration Statement, Information Statement/Prospectus and
Schedule 13E-3. The information supplied or to be supplied by or on behalf of
AIMCO for inclusion or incorporation by reference in (a) a registration
statement on Form S-4 (together with all amendments thereto, the "Registration
Statement") in connection with the proposed issuance of shares of AIMCO Common
Stock as Merger Consideration, in which the Information Statement/Prospectus (as
defined below) shall be included as a prospectus at the time it is filed with
the SEC, at the time the Registration Statement is filed with the SEC, at the
time it becomes effective under the Securities Act, and at the Effective Time
will not
 
                                      A-12
<PAGE>   374
 
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; and (b) a combined information statement and prospectus
to be distributed in connection with the Merger and the transactions
contemplated hereby (as amended or supplemented, the "Information
Statement/Prospectus"), at the time it is filed with the SEC, at the time it is
mailed to the IPT Shareholders and at the time of the IPT Meeting, and the
transaction statement on Schedule 13E-3 (the "Schedule 13E-3"), at the time such
statement is filed with the SEC, will not contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. The Registration
Statement, the Information Statement/Prospectus and the Schedule 13E-3 will
comply as to form in all material respects with the provisions of the Securities
Act and the Exchange Act and the rules and regulations thereunder.
 
SECTION 5.7  No Vote Required. The approval of the Original Agreement, this
Agreement, the Merger and the other transactions contemplated thereby and
hereby, including, without limitation, the issuance and listing on the NYSE of
the shares of AIMCO Common Stock to be issued in the Merger, did not and does
not require the vote of the holders of any class or series of stock of AIMCO or
any of its Subsidiaries.
 
SECTION 5.8  Tax Matters.
 
(a) Filing of Timely Tax Returns. As of October 1, 1998, AIMCO and each of its
Subsidiaries had filed (or there had been filed on their respective behalf) all
Tax Returns required to be filed by each of them under applicable law. All such
Tax Returns were and are in all material respects true, complete and correct and
filed on a timely basis.
 
(b) Payment of Taxes. As of October 1, 1998, AIMCO and each of its Subsidiaries
had, within the time and in the manner prescribed by law, paid all Taxes that
are currently due and payable for all periods through and including the Closing
Date, except for those contested in good faith and for which adequate reserves
have been taken.
 
(c) Tax Reserves. As of October 1, 1998, AIMCO and its Subsidiaries had
established on their books and records reserves adequate to pay all material
Taxes and reserves for deferred income Taxes in accordance with GAAP.
 
(d) Tax Liens. As of October 1, 1998, there were no Tax liens upon the material
assets of AIMCO or any of its Subsidiaries except liens for Taxes not yet
delinquent.
 
(e) REIT Classification. At all times since the initial public offering of
AIMCO, AIMCO has been organized and operated in conformity with the Status
Requirements, and its proposed method of operation will enable it to continue to
meet the Status Requirements and otherwise qualify as a REIT.
 
(f) Continuation as REIT. The consummation by AIMCO of the transactions
contemplated hereby and the compliance with or fulfillment of terms and
provisions hereof by AIMCO, will not adversely affect the qualification of AIMCO
as a REIT for each taxable year ending on or after the date on which the
Effective Time occurs.
 
(g) Deficiencies. As of October 1, 1998, no deficiencies for any Taxes had been
proposed, asserted or assessed against AIMCO, and there was no outstanding
waiver of the statute of limitations with respect to any Taxes or Tax Returns of
AIMCO.
 
                                      A-13
<PAGE>   375
 
(h) Domestic Control. As of October 1, 1998, AIMCO believed that it was a
"domestically-controlled" REIT within the meaning of Section 897(h)(4)(B) of the
Code.
 
SECTION 5.9  Brokers. As of October 1, 1998, no broker, finder or investment
banker was entitled to any broker's, finder's or other fee or commission in
connection with the Merger or the transactions contemplated by this Agreement
based upon arrangements made by, or on behalf of, AIMCO.
 
SECTION 5.10  Absence of Inducement. In entering into this Agreement, AIMCO has
not been induced by, or relied upon, any representations, warranties, or
statements by IPT not set forth or referred to in this Agreement or the other
documents required to be delivered hereby, whether or not such representations,
warranties, or statements have actually been made, in writing or orally, and
AIMCO acknowledges that, in entering into this Agreement, IPT has been induced
by and relied upon the representations and warranties of AIMCO herein set forth,
the information set forth in the AIMCO SEC Reports and in the other documents
required to be delivered hereby. AIMCO has made its own investigation of IPT
prior to the execution of this Agreement and has not been induced by or relied
upon any representations, warranties or statements as to the advisability of
entering into this Agreement other than as set forth above.
 
SECTION 5.11  Conduct of IPT's Business. AIMCO has complied, and has caused IPT
to comply, with Section 6.14(a)-(j) from October 1, 1998 to the date hereof.
 
SECTION 5.12  Purchases of AIMCO Common Stock. Neither AIMCO nor any of its
affiliates (as defined in Rule 12b-2 under the Exchange Act), directly or
indirectly, bid for or purchased or attempted to induce any person to bid for or
purchase AIMCO Common Stock from the fifth business day prior to the first day
of the period in which the AIMCO Collar Price was determined until the last day
of the period in which the AIMCO Collar Price was determined.
 
                                   ARTICLE VI
 
                             ADDITIONAL AGREEMENTS
 
SECTION 6.1  IPT and IPLP Distributions.
 
(a) Definitions.
 
     (i) "Special AIMCO Distribution" means any distribution, other than a
     regular quarterly distribution, on a share of AIMCO Common Stock with a
     record date prior to the Effective Time.
 
     (ii) "IPT Final Distribution Amount" means an amount (rounded up to the
     next whole cent) equal to (a) $0.16; plus (b) either (i) if the IPT Meeting
     Date occurs on or before February 28, 1999, $0.001758 multiplied the number
     of days between December 24, 1998 (inclusive) and the day immediately
     preceding the IPT Meeting Date (inclusive), or (ii) if the IPT Meeting Date
     occurs on or after March 1, 1998, $0.117786 plus the product of (A) the
     number of days between March 1, 1998 (inclusive) and the day immediately
     preceding the IPT Meeting Date (inclusive) multiplied by (B) the greater of
     (x) $0.001758 or (y) the quotient of (i) the product of 0.36011 multiplied
     by the per share amount of the most recent distribution declared, as of the
     date of determination, by the AIMCO Board in respect of the AIMCO Common
     Stock (other than a Special AIMCO Distribution), divided by (ii) 91.
 
                                      A-14
<PAGE>   376
 
(b) Regular Quarterly Distributions. IPT shall not, from and after the date
hereof, declare or pay distributions on the IPT Common Shares except as set
forth in Sections 6.1(c), (d) and (e); provided, however, that if the Effective
Time shall not have occurred by June 1, 1999, IPT may thereafter, at the
election of a majority of the Continuing Trustees, declare and pay a
distribution in an amount in cash per IPT Common Share equal to the IPT Final
Distribution Amount (assuming that for purposes of determining the IPT Final
Distribution Amount the IPT Meeting Date were the date prior to the record date
for such distribution) and regular quarterly distributions thereafter, each in
an amount in cash per IPT Common Share equal to the greater of (x) $0.16 or (y)
the product of 0.36011 multiplied by the per share amount of the most recent
distribution declared, as of the date of determination, by the AIMCO Board in
respect of the AIMCO Common Stock (other than a Special AIMCO Distribution).
 
(c) Final IPT Distribution.
 
     (i) On a date prior to the IPT Meeting, IPT shall declare a special cash
     distribution with a record date which is the date immediately preceding the
     IPT Meeting Date in an amount per IPT Common Share equal to the IPT Final
     Distribution Amount.
 
     (ii) Before the Closing Date, IPT shall set aside the monies necessary to
     pay the distribution pursuant to this Section 6.1(c), and such
     distributions shall be paid fifteen calendar days after such record date.
 
(d) Special AIMCO Distribution. In the event that the Effective Time has not
occurred on or before February 28, 1999, if at any time thereafter AIMCO
declares a Special AIMCO Distribution, then IPT shall promptly declare and pay a
corresponding distribution on each IPT Common Share with the same record date in
an amount equal to the amount of such Special AIMCO Distribution, multiplied by
0.36011.
 
(e) Excess Distribution. If and to the extent that IPT reasonably determines
that the distributions required to be paid by IPT pursuant to the foregoing
subsections (c) and (d) of this Section 6.1 are not sufficient for IPT to meet
the distribution requirements applicable to REITs for IPT's taxable year ended
on the date on which the Effective Time occurs, including as a result of the
AMIT Merger, then IPT shall, prior to the date on which the Effective Time
occurs, declare, with a record date prior to the Effective Time, one or more
special distributions in respect of the IPT Common Shares in an aggregate amount
equal to the amount of such shortfall (the aggregate of all such distributions
per IPT Common Share, if any, is referred to herein as the "Excess Distribution
Amount").
 
(f) Covenant of AIMCO. AIMCO covenants and agrees that AIMCO will cause IPT to
timely declare and pay the distributions required to be made pursuant to this
Section 6.1.
 
SECTION 6.2  Registration Statement, Information Statement/Prospectus and Sched-
ule 13E-3.
 
(a) As soon as reasonably practicable after October 1, 1998, (i) AIMCO shall
prepare and file with the SEC the Registration Statement and (ii) the parties
shall prepare and file with the SEC the Information Statement/Prospectus and
Schedule 13E-3.
 
(b) The parties shall use their reasonable best efforts to have the Registration
Statement declared effective under the Securities Act by the SEC as soon as
practicable after such filing and to cause the Information Statement/Prospectus
to be mailed to IPT Shareholders as soon as practicable after the Registration
Statement is declared effective by the SEC. None of the
 
                                      A-15
<PAGE>   377
 
parties shall take any action or omit to take any action which could reasonably
be expected to result in a postponement of adjournment of the IPT Meeting;
provided, however, that any party may take any such action or omit to take any
such action which counsel has advised is required to be taken or omitted if it
does not result in the postponement or adjournment of the IPT Meeting by more
than 10 NYSE trading days.
 
(c) Each party shall furnish all information concerning itself which is required
or customary for inclusion in the Registration Statement, the Information
Statement/Prospectus or the Schedule 13E-3. The information provided by any
party for use in (i) the Registration Statement will not, either at the time the
Registration Statement is filed with the SEC, at the time any amendment thereof
or supplement thereto is filed with the SEC, or at the time it becomes effective
under the Securities Act, 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; and (ii) the Information
Statement/Prospectus will not, either at the date mailed to the IPT Shareholders
or at the time of the IPT Meeting, and the Schedule 13E-3 will not, at the time
it is filed with the SEC or at the time any amendment thereof or supplement
thereto is filed with the SEC, contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading. No representation, covenant or agreement is made
by any party with respect to information supplied by the other party for
inclusion in the Registration Statement, the Information Statement/Prospectus or
the Schedule 13E-3.
 
(d) Each party shall also take such action as may be reasonably required to
cause the shares of AIMCO Common Stock covered by the Registration Statement to
be approved for listing on the NYSE as of the Effective Time, upon official
notice of issuance. Each party shall also take such action as may be reasonably
required to cause the shares of AIMCO Common Stock issuable in connection with
the Merger to be registered or to obtain an exemption from registration under
applicable state "blue sky" or securities laws; provided, however, that no party
shall be required to register or qualify as a foreign corporation or to take
other action which would subject it to general service of process in any
jurisdiction where the Surviving Entity will not be, following the Merger, so
subject.
 
SECTION 6.3  Regulatory Matters. Each party shall cooperate and use its
reasonable best efforts to promptly prepare and file all necessary documentation
and to effect all necessary applications, notices, petitions, filings and other
documents, including, without limitation, the AIMCO Required Filings.
 
SECTION 6.4  Shareholder Approval. IPT shall, as soon as practicable after
October 1, 1998, (a) take all steps necessary to duly call, give notice of,
convene and hold the IPT Meeting, which meeting shall be held on a date
(including the date on which action is taken at such meeting as it may be
postponed or adjourned, the "IPT Meeting Date") which is a NYSE trading day,
provided that the day immediately preceding such date must also be a NYSE
trading day, and (b) timely distribute to IPT Shareholders the Information
Statement/Prospectus. The IPT Board, acting upon the recommendation of a
majority of the Continuing Trustees, unless otherwise required in accordance
with its fiduciary duties to IPT Shareholders, shall recommend to such
shareholders the approval of the Merger, this Agreement and the transactions
contemplated hereby and cooperate and consult with AIMCO with respect to each of
the foregoing matters. Notwithstanding the foregoing, IPT and the Continuing
Trustees may take and disclose to IPT Shareholders a position contem-
 
                                      A-16
<PAGE>   378
 
plated by Rule 14e-2 promulgated under the Exchange Act if required to do so by
the Exchange Act, comply with Rule 14d-9 thereunder and make all other
disclosures required by applicable law.
 
SECTION 6.5  Vote of IPT Common Shares Owned by AIMCO. AIMCO agrees to vote all
IPT Common Shares owned of record by it, and to cause all IPT Common Shares
owned of record by its Subsidiaries to be voted, for approval of this Agreement
and the transactions contemplated hereby and has executed a proxy in favor of
Messrs. Aston, Farkas and Garrison (the "Proxyholders") to vote all such IPT
Common Shares held by AIMCO, directly or indirectly, in favor of the Merger, the
adoption of this Agreement and the transactions contemplated hereby. AIMCO
further agrees that, through the Effective Time, it shall not (a) sell, transfer
or otherwise dispose of any IPT Common Shares owned by it or permit any of its
Subsidiaries to sell, transfer or otherwise dispose of any IPT Common Shares
owned by it, (b) cause or permit IPT to issue additional IPT equity securities
to any other Person or take any other action which could have the effect of
reducing the proportion of IPT Common Shares owned by AIMCO and its Subsidiaries
that are entitled to vote on the Merger, this Agreement and the transactions
contemplated hereby, or (c) grant any other proxies with respect to such shares;
provided, however, that AIMCO may (i) transfer IPT Common Shares owned by it to
its Subsidiaries so long as such Subsidiary agrees in writing to be bound by the
terms of this Agreement and executes and delivers to the Proxyholders a proxy to
vote such IPT Common Shares in favor of the Merger, the adoption of this
Agreement and the transactions contemplated hereby, or (ii) pledge such IPT
Common Shares to a commercial bank or other bona fide financial institution with
capital exceeding $100,000,000 (a "Financial Institution") so long as such
Financial Institution agrees in writing to (A) honor the proxy given by AIMCO to
the Proxyholders with respect to such pledged IPT Common Shares, (B) execute and
deliver to the Proxyholders a proxy in favor of the Proxyholders or their
successors once the Financial Institution obtains the right to vote such pledged
IPT Common Shares and (C) cause any transferee of such IPT Common Shares from
the Financial Institution to execute and deliver a proxy in favor of the
Proxyholders or their successors and to agree to cause any subsequent transferee
of the IPT Common Shares to also agree to the obligations in this clause (C).
 
SECTION 6.6  Public Announcements. Subject to each party's disclosure
obligations imposed by law and the rules of any national securities exchange or
inter-dealer quotation system on or in which the shares of stock, beneficial
interest or other ownership interests of IPT or AIMCO are now or may later be
listed or authorized to be quoted, IPT and AIMCO shall cooperate with each other
in the development and distribution of all news releases and other public
announcements with respect to this Agreement or any of the transactions
contemplated hereby and shall not issue any public announcement or statement
with respect hereto or thereto without the consent of the other party (which
consent shall not be unreasonably withheld).
 
SECTION 6.7  Expenses. All costs and expenses incurred in connection with the
Original Agreement, the First Amended and Restated Agreement and this Agreement
and the transactions contemplated hereby shall be paid by the party incurring
such expenses.
 
SECTION 6.8  Further Assurances. AIMCO covenants and agrees to use its
reasonable best efforts to consummate the Merger as soon as possible. Each party
shall, and shall cause its Subsidiaries to, execute such further documents and
instruments and take such further action, including, without limitation,
obtaining any consents, authorizations, exemptions and
 
                                      A-17
<PAGE>   379
 
approvals, as may be necessary to perform the obligations and satisfy the
conditions to be performed or satisfied by either party pursuant to this
Agreement or as may reasonably be requested by the other party in order to
consummate the Merger in accordance with the terms hereof.
 
SECTION 6.9  Transfer Taxes. The parties shall cooperate in the preparation,
execution and filing of all returns, questionnaires, applications or other
documents regarding the real property transfer or gains, sales, use, transfer,
value added, stock transfer and stamp taxes, any transfer, recording,
registration and other fees or similar Taxes ("Transfer Taxes") which become
payable in connection with the transactions contemplated by this Agreement that
are required to be filed on or before the Effective Time.
 
SECTION 6.10  IPT Trustees and Officers.
 
(a) IPT shall recognize that the Continuing Trustees are authorized and
empowered to act to the extent set forth in the IPT Bylaws. The AIMCO Committee
and the Executive Committee shall not be dissolved prior to the earlier of the
Effective Time or the termination of this Agreement.
 
(b) The powers of the Continuing Trustees shall not be modified, without the
consent of a majority of the Continuing Trustees, prior to the earlier of the
Effective Time or the termination of this Agreement.
 
(c) If, after October 1, 1998 and prior to the Effective Time, any IPT
Shareholder vote is taken for the election of a trustee to a trusteeship on the
IPT Board currently occupied by a Continuing Trustee or by any successor duly
elected hereunder (a "Continuing Trusteeship"), AIMCO shall vote its IPT Common
Shares for the reelection of each such Continuing Trustee or for the election of
such Continuing Trustee's successor as may be designated by a majority of the
remaining Continuing Trustees. If, after October 1, 1998 and prior to the
Effective Time, any vacancy on the IPT Board arises with respect to a Continuing
Trusteeship, AIMCO shall cause the AIMCO-nominated Trustees to vote to fill such
vacancy by electing a person nominated by a majority of the remaining Continuing
Trustees.
 
(d) After October 1, 1998 and prior to the earlier of the Effective Time or the
termination of this Agreement, without the prior written consent of a majority
of the Continuing Trustees, which shall not be unreasonably withheld, IPT shall
not terminate (i) Ernst & Young LLP from serving as its independent auditors,
(ii) Lehman Brothers Inc. from serving as its financial advisor with respect to
the Merger, or (iii) Proskauer Rose LLP, Miles & Stockbridge P.C., Rogers &
Wells LLP or Akin, Gump, Strauss, Hauer & Feld, L.L.P. from serving as its legal
counsel with respect to the Merger.
 
(e) The parties agree that Jeffrey P. Cohen shall remain as Secretary of IPT
and, in such capacity, shall be invited and entitled to attend all meetings of
the IPT Board and each committee thereof. In the event that Jeffrey P. Cohen
shall cease to serve as Secretary of IPT for any reason, another individual
nominated by a majority of the Continuing Trustees shall be appointed to such
position and be so invited and entitled to attend such meetings.
 
(f) Without the approval of a majority of the Continuing Trustees, AIMCO shall
not, and shall not permit any AIMCO-nominated Trustee to, remove a Continuing
Trustee from the IPT Board or amend the IPT Declaration (unless such amendment
shall have been approved by a majority of the Continuing Trustees).
 
                                      A-18
<PAGE>   380
 
SECTION 6.11  Modification of Form of Transaction. Upon the earlier to occur of
(a) December 31, 2000 or (b) such time (if ever) as any Law is adopted or
promulgated after October 1, 1998 which has the effect, as supported by the
written opinion of outside counsel for AIMCO, of prohibiting the Merger, or any
court of competent jurisdiction in the United States shall have issued an order,
judgment or decree permanently restraining, enjoining or otherwise prohibiting
the Merger, which order, judgment or decree has become final and nonappealable,
IPT, acting upon the recommendation of a majority of the Continuing Trustees,
and AIMCO shall each use its best efforts to restructure the form of the
transaction to one which has a materially improved chance of completion and can
be accomplished without materially changing either the consideration to be
received by IPT Shareholders or the tax or other economic consequences of the
transaction to AIMCO and its Subsidiaries. Any restructuring of the transaction
as contemplated by this Section 6.11 shall not relieve AIMCO or IPT of their
respective obligations under Section 6.8 of this Agreement.
 
SECTION 6.12  Indemnification.
 
(a) Certain Definitions.
 
     (i) "Taxes," as used in this Section 6.12, means any Federal, state,
     county, local or foreign taxes, charges, fees, levies or other assessments,
     including all net income, gross income, sales and use, ad valorem,
     transfer, gains, profits, excise, franchise, real and personal property,
     gross receipt, capital stock, share, production, business and occupation,
     disability, employment, payroll, license, estimated, stamp, custom duties,
     severance or withholding taxes or charges imposed by any governmental
     entity, and includes any interest and penalties (civil or criminal) on or
     additions to any such taxes.
 
     (ii) "Indemnitee" shall mean each person who was, is or hereafter may
     become a trustee, officer or employee of IPT, and their respective
     successors, heirs and personal representatives.
 
     (iii) "Losses" shall mean any and all actual costs or expenses (including,
     without limitation, attorneys' fees billed at standard hourly rates and
     expenses, as and when incurred, in connection with any action, claim or
     proceeding relating thereto, investigation costs and remediation costs,
     interest, penalties and fines and all legal and other costs, expenses and
     disbursements in giving testimony or furnishing documents in response to a
     subpoena or otherwise), judgments, amounts paid in settlement, fines,
     penalties, assessments, Taxes (excluding Taxes arising from amounts paid to
     an Indemnitee), losses, actions or causes of action, claims, demands,
     damages, liabilities, obligations, awards, disbursements or assessments of
     every kind, nature and description. Notwithstanding the foregoing, Losses
     shall be reduced to reflect any insurance proceeds actually recovered by
     the Indemnitee relating to such claim, provided that this reduction shall
     not be applied if to do so would excuse any insurer from any obligation to
     cover any loss. If the Indemnitee receives insurance proceeds after it
     receives indemnity hereunder, then the Indemnitee, within ten days of
     receipt of such proceeds, shall pay to AIMCO the amount by which AIMCO's
     payment would have been reduced if the insurance proceeds had been received
     before AIMCO paid the Indemnitee.
 
(b) AIMCO shall save, defend, indemnify and hold harmless each Indemnitee to the
fullest extent permitted by applicable law from and against all Losses, as and
when incurred, whether or not involving a third party, that arise out of or are
the result of the fact that he is, was, or is to be, either prior to or after
the execution of the Original Agreement, a trustee, officer or
 
                                      A-19
<PAGE>   381
 
employee of IPT, except that no Indemnitee shall be entitled to be indemnified
hereunder with respect to any Loss determined to have been incurred (i) by
reason of such Indemnitee's wilful misconduct or (ii) with respect to attorney's
fees and expenses which are not reasonable, in each case in a written factual
finding issued in a court proceeding or other adjudication not subject to
further appeal or issued in an arbitration (as to (ii) only). Each Indemnitee
shall promptly return to AIMCO any funds advanced to such Indemnitee pursuant to
Section 6.12(c) if and to the extent such Indemnitee is found not to be entitled
to be indemnified in the situations described in clauses (i) and (ii) above.
AIMCO shall make payments under this Section 6.12 within 30 days from the date
that an Indemnitee has requested an indemnification payment hereunder.
 
(c) If any action, suit, proceeding or investigation is commenced as to which an
Indemnitee desires to receive indemnification, such Indemnitee shall notify
AIMCO with reasonable promptness; provided, however, that failure to give
reasonably prompt notice to AIMCO shall not affect the indemnification
obligations of AIMCO hereunder except to the extent that the failure to so
notify has prejudiced AIMCO in such action, suit, proceeding or investigation.
The Indemnitee shall have the right to retain counsel of such Indemnitee's own
choice to represent such Indemnitee; and such counsel shall, to the extent
consistent with its professional responsibilities, cooperate with AIMCO and any
counsel designated by AIMCO. Subject to the penultimate sentence of Section
6.12(b), from time to time as requested by the Indemnitee, AIMCO will advance
the Indemnitee funds sufficient to satisfy all attorneys' fees at standard
hourly rates and expenses of such counsel as and when incurred and invoiced.
AIMCO shall be liable only for any settlement of any claim against an Indemnitee
made with AIMCO's written consent, which consent shall not be unreasonably
withheld. AIMCO shall not, without the prior written consent of an Indemnitee,
settle or compromise any claim, or permit a default or consent to the entry of
any judgment in respect thereof, unless such settlement, compromise or consent
includes, as an unconditional term thereof, the giving by the claimant to such
Indemnitee of an unconditional release from all liability in respect of such
claim.
 
(d) Before enforcing rights under this Section 6.12, an Indemnitee must first
demand indemnification from IPT pursuant to the indemnification provisions set
forth in the IPT Declaration, IPT Bylaws or any contractual arrangement between
such Indemnitee and IPT. If, after ten business days from the date that such
Indemnitee had requested indemnification from IPT pursuant to the
indemnification provisions of the IPT Declaration, IPT Bylaws or any contractual
arrangement between such Indemnitee and IPT, IPT has not paid the Indemnitee's
claim or satisfactorily responded to such Indemnitee's request, as reasonably
determined by the Indemnitee, the Indemnitee shall be free to assert a claim for
indemnification pursuant to Section 6.12(c).
 
(e) Notwithstanding any other provision of this Agreement to the contrary, this
Section 6.12 and Section 6.13 shall survive the consummation of the Merger and
termination of this Agreement.
 
SECTION 6.13  Insurance. AIMCO and IPT agree that after October 1, 1998 and
until the Effective Time, IPT shall maintain in full force and effect, and AIMCO
shall use its best efforts to cause IPT to maintain in full force and effect,
directors', trustees' and officers' liability insurance covering the existing
and Continuing Trustees, directors and officers of IPT and its Subsidiaries
which is no less favorable than the insurance coverage which is in effect and
covering such trustees, directors and officers on October 1, 1998. AIMCO further
agrees that, following the Effective Time, the Surviving Entity will maintain
such insurance covering
 
                                      A-20
<PAGE>   382
 
such persons, and each such person covered by such insurance immediately prior
to the Effective Time shall be named as additional insureds.
 
SECTION 6.14  Conduct of IPT's Business Pending the Effective Time. Each of IPT
and AIMCO covenants and agrees that from October 1, 1998 until the Effective
Time:
 
(a) IPT shall use its best efforts to maintain its listing on the American Stock
Exchange;
 
(b) none of IPT, IPLP or any Controlled IPT Entity (as defined in Section 8.2)
shall loan money to AIMCO or any Controlled AIMCO Entity (as defined in Section
8.2);
 
(c) neither IPT nor IPLP shall reclassify any of their respective equity
securities or other interests or issue or authorize or propose the issuance of
any other securities or interests in respect of, in lieu of, or in substitution
for, their respective equity securities or other interests;
 
(d) neither IPT nor AIMCO shall cause the IPLP Limited Partnership Agreement to
be amended, except with the prior consent of a majority of the Continuing
Trustees, provided that IPLP may admit Additional Limited Partners (as defined
the IPLP Limited Partnership Agreement) other than AIMCO or its affiliates to
IPLP in accordance with the terms of the IPLP Limited Partnership Agreement
without such consent;
 
(e) during such time as AIMCO controls (as such term is defined in the rules and
regulations promulgated under Rule 12b-2 of the Exchange Act) IPT, IPT shall
not, and AIMCO shall cause IPT not to, make termination fee payments to AIMCO or
any of its Subsidiaries under sections 7.1(c), 7.2(c) or 7.2(d) of the IPLP
Limited Partnership Agreement or permit AIMCO to benefit from the rights
provided in section 9.6 thereof;
 
(f) IPT shall duly and timely file all reports and other documents required to
be filed pursuant to the Securities Act, the Exchange Act and the rules and
regulations thereunder;
 
(g) IPT shall follow the same general policy as AIMCO in releasing and drafting
its future press releases and such releases will include the AIMCO Collar Price,
the IPT Exchange Value and, if applicable, the future date through which AIMCO
may elect to pay the Merger Consideration in cash;
 
(h) AIMCO shall not, nor shall AIMCO permit any of AIMCO's Subsidiaries to,
willfully take any action that would result in a state of facts which would make
the Merger impossible to be consummated or would result in a material breach of
any provision of this Agreement or in any of its material representations and
warranties set forth in this Agreement being untrue on and as of the Effective
Time; provided, however, that AIMCO and its Subsidiaries may issue securities,
acquire securities or assets and otherwise act in the ordinary course of their
business;
 
(i) all transactions between IPT, IPLP or any Controlled IPT Entity, on the one
hand, and AIMCO or any Controlled AIMCO Entity, on the other hand, shall be on
arms' length terms;
 
(j) IPT shall not increase its annual general and administrative expenses in
excess of an annual increase based on the Consumer Price Index (with the
amortization of restricted stock outstanding as of October 1, 1998 being
excluded from the definition of general and administrative expenses); and
 
(k) neither AIMCO nor any of its affiliates (as defined in Rule 12b-2 of the
Exchange Act), directly or indirectly, shall bid for, purchase or attempt to
induce any Person to bid for or purchase AIMCO Common Stock except in compliance
with Regulation M and, treating the purchasing entity as the "issuer," Rule
10b-18 under the Exchange Act from the fifth business
 
                                      A-21
<PAGE>   383
 
day prior to the first day of the period in which the AIMCO Reference Price is
determined until the last day of the period on which the AIMCO Reference Price
is determined. AIMCO shall report the volume, dates and prices of such purchases
to IPT's Secretary weekly.
 
                                  ARTICLE VII
 
                                   CONDITIONS
 
SECTION 7.1 Conditions to Each Party's Obligation to Effect the Merger. The
respective obligations of each party to effect the Merger shall be subject to
the satisfaction, on or prior to the Closing Date, of the following conditions:
 
(a) Shareholder Approval. The IPT Shareholders' Approval shall have been
obtained.
 
(b) No Injunction. No temporary restraining order or preliminary or permanent
injunction or other order by any federal or state court preventing consummation
of the Merger shall have been issued and be continuing in effect.
 
(c) No Change in Law. The Merger and the other transactions contemplated hereby
shall not have been prohibited under any applicable Federal or state law or
regulation adopted or amended after October 1, 1998.
 
(d) Effectiveness of Registration Statement. If the Merger Consideration to be
issued pursuant to Section 2.1 includes shares of AIMCO Common Stock, (i) the
Registration Statement shall continue to be effective under the Securities Act
at the Effective Time, and no stop order suspending such effectiveness shall be
in effect and (ii) all applicable time periods required under the Exchange Act
and the American Stock Exchange rules following the mailing of the Information
Statement/Prospectus to IPT Shareholders shall have elapsed.
 
SECTION 7.2  Additional Conditions to Obligation of IPT to Effect the
Merger. The obligation of IPT to effect the Merger shall be further subject to
the satisfaction, at or prior to the Closing Date, of the following conditions,
unless waived by a majority of the Continuing Trustees in writing:
 
(a) Fairness Opinion. The Lehman Opinion shall not have been withdrawn.
 
(b) Representations and Warranties. If the Merger Consideration includes shares
of AIMCO Common Stock, the representations and warranties of AIMCO contained in
Article V which are qualified as to materiality shall be true and correct, and
all other representations and warranties of AIMCO contained in this Agreement
shall be true and correct, in all material respects, in each case (i) on and as
of October 1, 1998 and/or the date hereof, as applicable, and (ii) at and as of
the Closing Date with the same effect as though such representations and
warranties had been made at and as of the Closing Date (except for
representations and warranties that expressly speak only as of a specific date
or time (other than October 1, 1998 and/or the date hereof) which need only be
true and correct as of such date or time); provided that this condition to the
obligation of IPT to consummate the Merger shall be deemed satisfied if the
aggregate losses, costs, damages and expenses to IPT due to breaches of such
representations and warranties (without giving effect to any materiality
qualification or standard contained in any such representations and warranties),
when aggregated with failures to comply with covenants by AIMCO and AIMCO
Material Adverse Effects, does not exceed $50 million.
 
                                      A-22
<PAGE>   384
 
(c) Performance of Obligations of AIMCO. If the Merger Consideration includes
shares of AIMCO Common Stock, each of AIMCO and AIMCO's Subsidiaries shall have
performed or complied with, in all respects, all of their respective obligations
set forth in Sections 6.1, 6.2, 6.3, 6.6, 6.8, 6.9, 6.10, 6.12, 6.13 and 6.14.
If the Merger Consideration is to be comprised only of cash, AIMCO shall have
performed or complied with, in all respects, all of its obligations set forth in
Section 6.1, 6.3, 6.6, 6.8, 6.12 and 6.13.
 
(d) AIMCO Officer's Certificate. If the Merger Consideration includes shares of
AIMCO Common Stock, IPT shall have received a certificate signed by the
President of AIMCO, dated as of the Closing Date, to the effect that, to the
best of such officer's knowledge, the conditions set forth in Sections 7.2(b)
and (c) have been satisfied.
 
(e) AIMCO Opinions. If the Merger Consideration includes shares of AIMCO Common
Stock, IPT shall have received (i) an opinion of Skadden, Arps, Slate, Meagher &
Flom LLP, special tax counsel to AIMCO, dated as of the Closing Date,
substantially in the form attached hereto as Exhibit 7.2(e)-1 (an "AIMCO REIT
Opinion"), and (ii) an opinion of Skadden, Arps, Slate, Meagher & Flom LLP,
special tax counsel to AIMCO, dated as of the Closing Date, substantially in the
form attached hereto as Exhibit 7.2(e)-2 (an "AIMCO Reorganization Opinion");
provided, however, that if all other conditions in this Section 7.2 have been
satisfied or waived and if AIMCO is unable to deliver either of such opinions
after having exercised its reasonable best efforts to do so, (A) the Merger
Consideration shall be paid solely in cash pursuant to clause (y) of Section
2.1(b)(i) (assuming the Cash Percentage is equal to 100%) and (B) neither the
receipt of an AIMCO REIT Opinion nor the receipt of an AIMCO Reorganization
Opinion by IPT shall be a condition to effecting the Merger.
 
(f) AIMCO Corporate Law Opinion. IPT shall have received an opinion of Ballard,
Spahr, Andrews & Ingersoll, LLP, special Maryland counsel to AIMCO, dated as of
the Closing Date, substantially in the form attached hereto as Exhibit 7.2(f).
 
(g) IPT Distributions. All distributions required to be declared prior to the
Effective Time pursuant to Section 6.1 shall have been declared and any such
distributions required to be paid prior to the Effective Time pursuant Section
6.1 shall have been paid; provided, however, that any waiver of this condition
shall not be deemed a waiver of any of IPT's or AIMCO's obligations under
Section 6.1.
 
SECTION 7.3  Additional Conditions to Obligation of AIMCO to Effect the
Merger. The obligation of AIMCO to effect the Merger shall be further subject to
the satisfaction, at or prior to the Closing Date, of the following conditions,
unless waived by AIMCO in writing:
 
(a) Representations and Warranties. The representations and warranties of IPT
contained in Article IV which are qualified as to materiality shall be true and
correct and all other representations and warranties of IPT contained in this
Agreement shall be true and correct, in all material respects, in each case, on
and as of October 1, 1998 and/or the date hereof, as applicable; provided that
this condition to the obligation of AIMCO to consummate the Merger shall be
deemed satisfied if the aggregate loss, cost, damage or expense to AIMCO due to
breaches of such representations and warranties (without giving effect to any
materiality qualification or standard contained in any such representations and
warranties) does not exceed $50 million.
 
(b) REIT Opinion. The opinion of Akin, Gump, Strauss, Hauer and Feld, L.L.P.,
counsel to IPT, dated and delivered to AIMCO on October 1, 1998, receipt of
which is hereby
 
                                      A-23
<PAGE>   385
 
acknowledged by AIMCO, shall not have been withdrawn on the basis solely of
facts existing as of October 1, 1998.
 
(c) Opinion of IPT's Counsel. The opinion of Miles & Stockbridge P.C., counsel
to IPT, dated and delivered to AIMCO on October 2, 1998, receipt of which is
hereby acknowledged by AIMCO, shall not have been withdrawn on the basis solely
of facts existing as of October 2, 1998.
 
                                  ARTICLE VIII
 
                       TERMINATION, AMENDMENT AND WAIVER
 
SECTION 8.1  Termination. This Agreement may be terminated and the Merger may be
abandoned at any time prior to the Effective Time, whether before or after
receipt of the IPT Shareholders' Approval contemplated by this Agreement:
 
(a) by mutual written consent of a majority of the Continuing Trustees, on
behalf of IPT, and the AIMCO Board; or
 
(b) by AIMCO by written notice to each of the Continuing Trustees, if the
Effective Time shall not have occurred on or before December 31, 2001; or
 
(c) by a majority of the Continuing Trustees, on behalf of IPT, by written
notice to AIMCO, if:
 
     (i) the Effective Time shall not have occurred on or before December 31,
     2001;
 
     (ii) a majority of the Continuing Trustees shall have determined in good
     faith that a proposal by or offer from any Person relating to any (A)
     acquisition of a substantial amount of assets of IPT or IPLP or any of the
     outstanding IPT Common Shares or IPLP partnership interests, (B) offer to
     purchase outstanding IPT Common Shares or IPLP partnership interests or (C)
     merger, consolidation, business combination, sale of substantially all of
     the assets, recapitalization, liquidation or similar transaction involving
     IPT or IPLP, other than the transactions contemplated by this Agreement (an
     "Alternative Proposal"), constitutes a proposal that is reasonably likely
     to be consummated and would, if consummated, result in a transaction which
     is more favorable, from a financial point of view, to IPT Shareholders than
     the transactions contemplated by this Agreement (a "Superior Proposal");
     provided, however, that the Continuing Trustees may not terminate this
     Agreement pursuant to this Section 8.1(c)(ii) unless (1) five days shall
     have elapsed after delivery to AIMCO of a written notice of such
     determination by the Continuing Trustees and at all reasonable times during
     such five-day period the Continuing Trustees shall have cooperated with
     AIMCO in informing AIMCO of the terms and conditions of such Alternative
     Proposal and the identity of the person or group making such Alternative
     Proposal, with the objective of providing AIMCO a reasonable opportunity,
     during such five-day period, to propose a modification of the terms and
     conditions of this Agreement so that a business combination between IPT and
     AIMCO may be effected, (2) during such five-day period, the Continuing
     Trustees negotiate in good faith with AIMCO with respect to such proposed
     modifications and (3) at the end of such five-day period, a majority of the
     Continuing Trustees continues to believe in good faith that such
     Alternative Proposal constitutes a Superior Proposal; or
 
                                      A-24
<PAGE>   386
 
     (iii) AIMCO takes any action that constitutes an anticipatory repudiation
     of this Agreement and fails to cure such action within ten days from
     receipt of notice (whether written or oral) from a majority of the
     Continuing Trustees.
 
SECTION 8.2  Effect of Termination. In the event of termination of this
Agreement by IPT or AIMCO pursuant to Section 8.1, the effects and consequences
of such termination, and relative rights and obligations of the parties as a
result thereof, shall be as set forth in this Section 8.2 and in the IPT Bylaws.
 
(a) Certain Definitions. As used in this Agreement, the following terms have the
following meanings:
 
"AIMCO Termination Reference Price" means the average price (computed based on
the sum of the high and low sales prices of AIMCO Common Stock (as reported in
the NYSE Composite Transactions reporting system as published in The Wall Street
Journal or, if not published therein, in another authoritative source) divided
by two) of a share of AIMCO Common Stock during the ten consecutive NYSE trading
day period ending on and including the Termination Date.
 
"AIMCO Termination Share Value" means the lesser of the AIMCO Collar Price or
the AIMCO Termination Reference Price.
 
"Common Partnership Unit" means a fractional, undivided share of common
ownership interest in IPLP, with economic rights and preferences substantially
the same as an IPT Common Share.
 
"Control" has the meaning specified in Rule 12b-2 of the Exchange Act.
 
"Controlled AIMCO Entity" means AIMCO and each Person which, as of or after
October 1, 1998, is or becomes, directly or indirectly, Controlled by AIMCO.
 
"Controlled IPT Entity" means any Person which, as of or after October 1, 1998,
is or becomes, directly or indirectly, Controlled by IPT, other than IPLP and
each wholly-owned Subsidiary of IPT or IPLP.
 
"Covered IPT Assets" means any and all (i) securities, assets (whether real or
personal, tangible or intangible) and other things of value acquired by any
Controlled AIMCO Entity from any of IPT, IPLP or any wholly-owned Subsidiary of
IPT or IPLP at any time on or prior to the Termination Date (including prior to
the IFG Merger) and (ii) cash and non-cash distributions received in respect of
the foregoing, together, in the case of cash distributions, with a return
thereon at an annual rate of 10%, compounded annually, from the date of receipt
thereof through the Termination Date; provided, that to the extent any item
which would have otherwise constituted a Covered IPT Asset has been sold or
otherwise disposed of, the consideration received therefor, together with
interest on any cash portion thereof on the same basis, shall be substituted for
such item.
 
"Covered Third-Party Assets" means any and all of the following acquired by any
Controlled AIMCO Entity from any Person other than IPT, IPLP or a wholly-owned
Subsidiary of IPT or IPLP at any time on or prior to the Termination Date
(including prior to the IFG Merger): (i) equity securities or debt securities
of, or other ownership interests in or indebtedness of, any Controlled IPT
Entity; (ii) assets, whether real or personal, tangible or intangible, of any
Controlled IPT Entity; (iii) any other thing of value acquired from a Controlled
IPT Entity; and (iv) cash and non-cash distributions received in respect of the
foregoing, together, in the
 
                                      A-25
<PAGE>   387
 
case of cash distributions, with a return thereon at an annual rate of 10%,
compounded annually, from the date of receipt thereof through the Termination
Date; provided that to the extent any item which would have otherwise
constituted a Covered Third-Party Asset has been sold or otherwise disposed of,
the consideration received therefor, together with interest on any cash portion
thereof on the same basis, shall be substituted for such item.
 
"IPT Termination Share Value" means an amount equal to the IPT Exchange Value,
divided by the AIMCO Termination Share Value, multiplied by the AIMCO
Termination Reference Price.
 
"IPT Unwind Consideration" means any and all (i) consideration delivered to IPT,
IPLP and wholly-owned Subsidiaries of IPT and IPLP in exchange for the Covered
IPT Assets and (ii) cash and non-cash distributions received in respect of the
foregoing, together, in the case of cash distributions, with a return thereon at
an annual rate of 10%, compounded annually, from the date of receipt thereof
through the Termination Date; provided that to the extent any item which would
have otherwise constituted IPT Unwind Consideration has been sold or otherwise
disposed of, the consideration received therefor, together with interest on any
cash portion thereof on the same basis, shall be substituted for such item.
 
"Termination Date" means the date on which this Agreement is terminated pursuant
to Section 8.1.
 
"Third-Party Unwind Consideration" means, at the option of the recipient, the
number of fully paid, validly issued and non-assessable IPT Common Shares or
duly issued Common Partnership Units equal to the Third-Party Unwind Price
divided by the IPT Termination Share Value.
 
"Third-Party Unwind Price" means the aggregate fair value of the consideration
originally paid or delivered by the applicable Controlled AIMCO Entity in
exchange for the Covered Third-Party Assets, plus interest thereon at an annual
rate of 10%, compounded annually, from the date of acquisition through the
Termination Date, minus the aggregate fair value of all cash and non-cash
distributions received in respect of the Covered Third-Party Assets, minus
interest on the amount of cash distributions at an annual rate of 10%,
compounded annually, from the date of receipt through the Termination Date;
provided, however, that to the extent any such consideration has been sold or
otherwise disposed of, the consideration received therefor, together with
interest on any cash portion thereof on the same basis, shall be substituted for
such consideration.
 
(b) Third-Party Unwind. As soon as practicable after the Termination Date, AIMCO
shall transfer and assign, or cause to be transferred or assigned, to IPT or
IPLP, as determined by IPT, all of the Covered Third-Party Assets, in exchange
for which IPT or IPLP, as determined by IPT, shall issue to AIMCO (or its
designee) the Third-Party Unwind Consideration; provided, however,that cash
amounts due from each party may be netted out.
 
(c) IPT Unwind. As soon as practicable after the Termination Date, AIMCO shall
assign and transfer, or cause to be assigned or transferred, to IPT, IPLP or one
of the wholly-owned Subsidiaries of IPT or IPLP, as applicable, all of the
Covered IPT Assets, in exchange for which IPT, IPLP or one of the wholly-owned
Subsidiaries of IPT or IPLP, as applicable, shall return to the applicable
Controlled AIMCO Entity the applicable IPT Unwind Consideration; provided,
however, that cash amounts due from each party may be netted out.
 
                                      A-26
<PAGE>   388
 
(d) Limitation on Liability. Except as otherwise provided in this Section 8.2
(including the other provisions of this Agreement set forth in Section 8.2(e)),
there shall be no liability or obligation on the part of IPT or AIMCO or their
respective officers, trustees or directors hereunder after a termination;
provided, however, the foregoing limitation on liability shall not apply with
respect to any party whose breach of any representation, warranty, covenant or
agreement is the basis for such termination.
 
(e) Survival. The representations, warranties, covenants and agreements
contained in this Agreement shall not survive the termination hereof except (i)
to the extent a breach of any such representation, warranty, covenant or
agreement is the basis for such termination and (ii) Section 6.1 (with respect
to the period prior to Termination of this Agreement), 6.7, 6.12, 6.13 and
6.14(a)(v) shall survive such termination until the expiration of the applicable
statutes of limitation and Sections 6.10(b), 6.10(c), 6.10(e) and 6.10(f) shall
survive such termination for two years.
 
SECTION 8.3  Amendment. This Agreement may be amended, modified and supplemented
in any and all respects, at any time before or after the IPT Shareholders'
Approval has been obtained and prior to the Effective Time, only by a written
instrument signed by AIMCO and a majority of the Continuing Trustees, on behalf
of IPT; provided, however, that after the IPT Shareholders' Approval has been
obtained, no such amendment, modification or supplement shall, without the
further approval of the IPT Shareholders, (a) alter or change the amount or type
of Merger Consideration or any proceedings relating to the treatment of
Outstanding IPT Common Shares under Article II hereof or (b) alter or change any
of the other terms and conditions of this Agreement if such alterations or
changes, individually or in the aggregate, would adversely affect the rights of
IPT Shareholders.
 
SECTION 8.4  Waiver. At any time prior to the Closing Date, AIMCO or IPT may (a)
extend the time for the performance of any of the obligations or other acts of
the other party, (b) waive any inaccuracies in the representations and
warranties of the other party contained herein or in any document delivered
pursuant hereto and (c) waive compliance with any of the agreements or
conditions of the other party contained herein, to the extent permitted by
applicable law. Any agreement on the part of a party to any such extension or
waiver shall be valid if set forth in an instrument in writing signed on behalf
of such party; provided, however, that in order for any such extension or waiver
by IPT to be valid and effective, such instrument must be signed by a majority
of the Continuing Trustees.
 
                                      A-27
<PAGE>   389
 
                                   ARTICLE IX
 
                               GENERAL PROVISIONS
 
SECTION 9.1  Survival of Representations, Warranties, Covenants and
Agreements. The representations, warranties, covenants and agreements contained
in this Agreement shall not survive the Effective Time, except for Section 5.6
(which shall remain in effect until one year after the Effective Time) and
Sections 5.2(c), 5.8(e), 5.8(f), 6.1, 6.2(c), 6.7, 6.12 and 6.13 (which shall
survive the Effective Time until the expiration of the applicable statutes of
limitation).
 
SECTION 9.2  Notices. All notices and other communications hereunder shall be in
writing and shall be deemed given (a) when delivered personally, (b) one
business day after delivered to a reputable overnight courier service or (c)
when sent via facsimile (which is confirmed by copy sent within one business day
by a reputable overnight courier service) to the parties at the following
addresses (or at such other address for a party as shall be specified by like
notice):
 
         (i) If to IPT, to:
 
             Insignia Properties Trust
             375 Park Avenue, Suite 3401
             New York, New York 10152
             Attn: Jeffrey P. Cohen
             Facsimile: (212) 980-8544
             Telephone: (212) 750-6070
 
             with a copy (which shall not constitute notice) to:
 
             Proskauer Rose LLP
             1585 Broadway
             New York, New York 10036
             Attn: Arnold S. Jacobs
             Facsimile: (212) 969-2900
             Telephone: (212) 969-3210
 
        (ii) If to AIMCO, to:
 
             Apartment Investment and Management Company
             1873 South Bellaire Street, 17(th) Floor
             Denver, Colorado 80222
             Attn: Peter K. Kompaniez
             Facsimile: (303) 757-8735
             Telephone: (303) 757-8101
 
             with a copy (which shall not constitute notice) to:
 
             Skadden, Arps, Slate, Meagher & Flom, LLP
             300 South Grand Avenue, Suite 3400
             Los Angeles, California 90071
             Attn: Michael V. Gisser
             Facsimile: (213) 687-5600
             Telephone: (213) 687-5000
 
                                      A-28
<PAGE>   390
 
SECTION 9.3  Adjustment for Dilution. All references in this Agreement to per
share amounts and prices shall be equitably adjusted to take into account any
splits, combinations, equity dividends, reclassifications and similar
transactions, such that no party or IPT Shareholder is any better or worse off
than they would have been had such transaction not occurred.
 
SECTION 9.4  Entire Agreement. This Agreement and the Schedules and Exhibits
hereto constitute the entire agreement and supersede all other prior agreements
and understandings, both written and oral, between the parties with respect to
the subject matter hereof.
 
SECTION 9.5  Assignment. This Agreement may not be assigned by either party and
any attempted assignment shall be void and of no effect.
 
SECTION 9.6  GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, INCLUDING, WITHOUT
LIMITATION, SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW
AND SECTION 327(b) OF THE NEW YORK CIVIL PRACTICE LAWS AND RULES, EXCEPT TO THE
EXTENT THAT SECTIONS 1.1, 1.2, 1.3, 1.4 AND 2.1(c) AND (d) ARE EXPRESSLY
GOVERNED BY OR DERIVE THEIR AUTHORITY FROM THE MCAA OR THE MGCL.
 
SECTION 9.7  Interpretation. When reference is made in this Agreement to
Sections, Schedules or Exhibits, such reference shall be to a Section, Schedule
or Exhibit of this Agreement unless otherwise indicated. The table of contents
and headings contained in this Agreement are for convenience only and shall not
affect in any way the meaning or interpretation of this Agreement. Whenever the
words "include," "includes" or "including" are used in this Agreement, they
shall be deemed to be followed by the words "without limitation."
 
SECTION 9.8  Counterparts; Effect. This Agreement may be executed in
counterparts, each of which shall be deemed to be an original, but all of which
shall constitute one and the same agreement.
 
SECTION 9.9  Parties' Interest. This Agreement shall be binding upon each party
hereto and shall inure solely to the benefit of each party hereto and the IPT
Shareholders. Except as provided in Sections 6.12 and 6.13, nothing in this
Agreement, express or implied, is intended to confer upon any third party, other
than the IPT Shareholders, any rights or remedies of any nature whatsoever under
or by reason of this Agreement.
 
SECTION 9.10  Enforcement. The parties agree that irreparable damage would occur
in the event that any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached. Accordingly, it
is agreed that the parties shall be entitled to an injunction or injunctions, in
addition to any other remedy to which they are entitled at law or in equity, to
prevent breaches of this Agreement and to specifically enforce the terms and
provisions of this Agreement in any Federal or state court located in the County
of New York, State of New York. In addition, each of the parties hereto (a)
consents to submit itself to the personal jurisdiction of any Federal or state
court located in the County of New York, State of New York, in the event any
dispute arises out of this Agreement or any of the transactions contemplated by
this Agreement, (b) agrees that it shall not attempt to deny such personal
jurisdiction by motion or other request for leave from any such court and (c)
agrees that it shall not bring any action relating to this Agreement or any of
the
 
                                      A-29
<PAGE>   391
 
transactions contemplated by this Agreement in any court other than a Federal or
state court sitting in the County of New York, State of New York.
 
SECTION 9.11  Severability. The provisions of this Agreement shall be deemed
severable, and the invalidity or unenforceability of any provision shall not
affect the validity or enforceability of the other provisions hereof. If any
provision of this Agreement, or the application thereof to any person or entity
or any circumstance, is invalid or unenforceable, (a) a suitable and equitable
provision shall be substituted therefor in order to carry out, so far as may be
valid and enforceable, the intent and purpose of such invalid or unenforceable
provision and (b) the remainder of this Agreement and the application of such
provision to other persons, entities or circumstances shall not be affected by
such invalidity or unenforceability, nor shall such invalidity or
unenforceability affect the validity or enforceability of such provision, or the
application thereof, in any other jurisdiction.
 
SECTION 9.12  Letter Agreement. The letter agreement, dated October 14, 1997, as
amended by the letter dated March 2, 1998, between AIMCO and IFG, shall be
deemed applicable (insofar as such agreement, as amended, applies to Controlled
IPT Entities) for a period of two years following a breach by AIMCO of Section
6.12 of this Agreement.
 
SECTION 9.13  Knowledge. As used herein, the "knowledge" of IPT or any
Subsidiary of IPT shall mean the actual knowledge of any of Andrew L. Farkas,
James A. Aston, Frank M. Garrison, Ronald Uretta or Jeffrey P. Cohen, and the
"knowledge" of AIMCO or any Subsidiary of AIMCO shall mean the actual knowledge
of any of Terry Considine, Peter Kompaniez, Patrick Foye, Thomas M. Toomey or
(with respect to property-related matters only) Harry G. Alcock.
 
SECTION 9.14  Breaches. Notwithstanding any other provision herein, if at the
time of execution of the Original Agreement or this Agreement, AIMCO had or has
actual knowledge of a breach of any representation or warranty by IPT therein or
herein, or IPT had or has actual knowledge of a breach of any representation or
warranty by AIMCO therein or herein, such party shall be deemed to have waived
such breach to the extent of its actual knowledge of such breach at such time.
 
                                      A-30
<PAGE>   392
 
IN WITNESS WHEREOF, AIMCO and IPT have caused this Agreement to be signed on
their behalf as of the date first written above.
 
                                       APARTMENT INVESTMENT AND
                                       MANAGEMENT COMPANY
 
                                       By:        /s/ PATRICK J. FOYE
                                          --------------------------------------
                                                    Patrick J. Foye
                                               Executive Vice President
 
                                       INSIGNIA PROPERTIES TRUST
 
                                       By:
                                          --------------------------------------
                                                   Andrew L. Farkas
                                                  Continuing Trustee
 
                                       By:        /s/ JAMES A. ASTON
                                          --------------------------------------
                                                    James A. Aston
                                                  Continuing Trustee
 
                                       By:      /s/ WARREN M. ECKSTEIN
                                          --------------------------------------
                                                  Warren M. Eckstein
                                                  Continuing Trustee
 
                                       By:       /s/ FRANK M. GARRISON
                                          --------------------------------------
                                                   Frank M. Garrison
                                                  Continuing Trustee
 
                                       By:
                                          --------------------------------------
                                                   Bryan L. Herrmann
                                                  Continuing Trustee
 
                                       By:       /s/ JEFFREY P. COHEN
                                          --------------------------------------
                                                   Jeffrey P. Cohen
                                                       Secretary
 
                                      A-31
<PAGE>   393
 
This Agreement is consented to by the undersigned as an amendment to the First
Amended and Restated Agreement.
 
                                       TPI ACQUISITION TRUST
 
                                       By:        /s/ PATRICK J. FOYE
                                          --------------------------------------
                                                    Patrick J. Foye
                                               Executive Vice President
 
                                      A-32
<PAGE>   394
 
                                                                         ANNEX B
 
                                LEHMAN BROTHERS
 
                                                                 October 1, 1998
 
Board of Trustees
Insignia Properties Trust
One Insignia Financial Plaza
P.O. Box 1089
Greenville, SC 29602
 
Members of the Board:
 
We understand that Insignia Financial Group, Inc. ("Insignia") and Apartment
Investment and Management Company ("AIMCO") have entered into an Agreement and
Plan of Merger between AIMCO and Insignia (the "IFS Agreement"), pursuant to
which Insignia will merge with and into AIMCO (the "IFS Merger") and each share
of Class A common stock, par value $.01 per share, of Insignia ("Insignia Common
Stock") shall be converted into the right to receive such number of shares of
Cumulative Convertible Class E Preferred Stock of AIMCO (the "Class E Preferred
Stock") as is determined by dividing $303,000,000 by the AIMCO Index Price (as
defined in the IFS Agreement) (the "IFS Consideration"), subject to the right of
AIMCO to substitute up to $15,000,000 in cash for such shares under certain
circumstances as provided in the IFS Agreement, which shares of Class E
Preferred Stock will entitle the holders of Insignia Common Stock to receive a
special dividend in the aggregate amount of $50,000,000 (subject to adjustment,
as determined in the IFS Agreement) and, after payment thereof, will be
automatically converted into shares of common stock of AIMCO ("AIMCO Common
Stock"). We further understand that AIMCO has proposed to enter into a merger
with Insignia Properties Trust ("IPT" or the "Company"), the terms and
conditions of which will be set forth in more detail in the Agreement and Plan
of Merger between AIMCO and IPT (the "IPT Agreement"), pursuant to which IPT
will merge with and into AIMCO (the "IPT Merger") and each common share of
beneficial interest, par value $.01 per share, of IPT (the "IPT Shares") shall
be converted into the right to receive (i) an amount in cash equal to $13.25,
subject to adjustment in certain circumstances as provided in the IPT Agreement,
multiplied by the percentage between zero and 100 (the "Cash Factor") that AIMCO
shall have given by notice in writing by AIMCO to IPT prior to the beginning of
the period over which the AIMCO Index Price (as defined in the IPT Agreement) is
calculated and (ii) that number of shares of the Class A common stock of AIMCO
(the "AIMCO Common Stock") as is determined by dividing $13.28 by the AIMCO
Index Price multiplied by one hundred percent minus the Cash Factor, provided
that if the closing date shall occur at any time after February 28, 1999, the
Cash Factor shall be deemed to be zero (the "IPT Consideration" and, together
with the IFS Consideration, the "Consideration").
 
                                       B-1
<PAGE>   395
 
We have been requested by the Board of Trustees of the Company to render our
opinion with respect to the fairness to the holders of IPT Shares (other than
AIMCO, Insignia and their respective Subsidiaries, as defined in the IPT
Agreement), from a financial point of view, of the IPT Consideration to be
received by such holders. We have not been requested to opine as to, and our
opinion does not in any manner address, (i) the Company's underlying business
decision to proceed with or effect the IPT Merger or (ii) the fairness of the
allocation of the Consideration between the IFS Consideration to be received by
the holders of Insignia Common Stock and the IPT Consideration to be received by
the holders of IPT Shares. Pursuant to our letter dated March 17, 1998, we have
previously opined to the reasonableness of the allocation of the Consideration
between the IFS Consideration to be received by the holders of Insignia Common
Stock and the IPT Consideration to be received by the holders of IPT Shares.
 
In arriving at our opinion, we reviewed and analyzed: (1) a draft dated
September 29, 1998 of the IPT Agreement and the proposed terms of the IPT
Merger, (2) publicly available information concerning the Company and AIMCO that
we believe to be relevant to our analysis, including, without limitation, the
Joint Proxy Statement/Prospectus relating to the IFS Merger, (3) financial and
operating information with respect to the business, operations and prospects of
the Company and AIMCO furnished to us by the Company and AIMCO, respectively,
(4) a trading history of the AIMCO Common Stock from January 1, 1996 to the
present and a comparison of that trading history with those of other companies
that we deemed relevant, (5) a comparison of the historical financial results
and present financial condition of the Company with those of other companies
that we deemed relevant, (6) a comparison of the historical financial results
and present financial condition of AIMCO with those of other companies that we
deemed relevant, (7) a comparison of the financial terms of the IPT Merger with
the financial terms of certain other recent transactions that we deemed
relevant, and (8) liquidation values of the Company's properties furnished to us
by the Company. In addition, we have had discussions with the managements of the
Company and AIMCO concerning their respective businesses, operations, assets,
financial conditions and prospects and have undertaken such other studies,
analyses and investigations as we deemed appropriate.
 
In arriving at our opinion, we have assumed and relied upon the accuracy and
completeness of the financial and other information used by us without assuming
any responsibility for independent verification of such information and have
further relied upon the assurances of managements of the Company and AIMCO that
they are not aware of any facts or circumstances that would make such
information inaccurate or misleading. With respect to the financial forecasts of
the Company and AIMCO, upon advice of the Company and AIMCO we have assumed that
such forecasts have been reasonably prepared on a basis reflecting the best
currently available estimates and judgments of the managements of the Company
and AIMCO, as the case may be, as to the future financial performance of the
Company and AIMCO, and that the Company and AIMCO will perform substantially in
accordance with such forecasts. In arriving at our opinion, we have not
conducted a physical inspection of the properties and facilities of the Company
or AIMCO and have not made or obtained any evaluations or appraisals of the
assets or liabilities of the Company or AIMCO. In addition, you have not
authorized us to solicit, and we have not solicited, any indications of interest
from any third party with respect to the purchase of all or a part of the
Company's business. Our opinion necessarily is based upon market, economic and
other conditions as they exist on, and can be evaluated as of, the date of this
letter.
 
                                       B-2
<PAGE>   396
 
Based upon and subject to the foregoing, we are of the opinion as of the date
hereof that, from a financial point of view, the IPT Consideration to be
received by the holders of IPT Shares (other than AIMCO, Insignia and their
respective Subsidiaries, as defined in the IPT Agreement) is fair to such
holders.
 
We have acted as financial advisor to the Company in connection with the IPT
Merger and will receive a fee for our services. In addition, the Company has
agreed to indemnify us for certain liabilities that may arise out of the
rendering of this opinion. Lehman Brothers is currently a lender under the
Company's and Insignia's credit facilities, and has committed to provide an
interim credit facility to AIMCO, the proceeds of which are intended to
refinance certain liabilities being assumed by AIMCO in the IFS Merger. We also
have performed various investment banking services for the Company, Insignia and
AIMCO in the past and have received customary fees for such services. In
addition, Lehman Brothers and certain officers thereof own an aggregate of
510,000 IPT Shares and will receive their respective pro rata portions of the
IPT Consideration upon consummation of the IPT Merger. In the ordinary course of
our business, we actively trade in the debt and equity securities of the
Company, Insignia and AIMCO for our own account and for the accounts of our
customers and, accordingly, may at any time hold a long or short position in
such securities.
 
This opinion is for the use and benefit of the Board of Trustees of the Company
and is rendered to such Board of Trustees in connection with its consideration
of the IPT Merger. This opinion is not intended to be and does not constitute a
recommendation to any shareholder of the Company as to how such shareholder
should vote with respect to the IPT Merger.
 
                                          Very truly yours,
 
                                          LEHMAN BROTHERS
 
                                       B-3


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