Document:

QuickLinks
 -- Click here to rapidly navigate through this document

Exhibit 10.1  

 
 

FORTIETH AMENDMENT TO THE THIRD
  AMENDED AND RESTATED AGREEMENT OF
  LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P.    
    

        This FORTIETH AMENDMENT TO THE THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P., dated as of June 18, 2004 (this
"Amendment"), is being executed by AIMCO-GP, Inc., a Delaware corporation (the "General Partner"), as the general partner of AIMCO Properties, L.P., a Delaware limited partnership
(the "Partnership"), pursuant to the authority conferred on the General Partner by Section 7.3.C(7) of the Third Amended and Restated Agreement of Limited Partnership of AIMCO
Properties, L.P., dated as of July 29, 1994 (the "Agreement"). Capitalized terms used, but not otherwise defined herein, shall have the respective meanings ascribed thereto in the Agreement. 

        WHEREAS,
pursuant to Section 4.2.A of the Agreement, the General Partner is authorized to cause the Partnership to issue Partnership Units with such designations, preferences and
relative, participating, optional or other special rights, powers and duties as the General Partner shall determine and as shall be set forth in a written document attached to and made an exhibit to
the Agreement; and 

        WHEREAS,
the General Partner has determined that it is in the best interests of the Partnership to issue up to 5,000 units of a new class of Partnership Units in consideration of capital
contributions to the Partnership in the aggregate amount of up to $915,000. 

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

        1.     The
Agreement is hereby amended by the addition of a new exhibit, entitled "Exhibit RR," in the form attached
hereto, which shall be attached to and made a part of the Agreement. 

        2.     Each
Person to whom the General Partner shall initially cause the Partnership to issue any of the Partnership Units described on  Exhibit RR shall be admitted to the Partnership as a Limited Partner with
the rights of holders of the Partnership Units set forth on  Exhibit RR. The General Partner shall amend Exhibit A to the Agreement to reflect the
admittance
of each such Person as a Limited Partner and the issuance of such Partnership Units to each such Person. 

        3.     Except
as specifically amended hereby, the terms, covenants, provisions and conditions of the Agreement shall remain unmodified and continue in full force and effect and,
except as amended hereby, all of the terms, covenants, provisions and conditions of the Agreement are hereby ratified and confirmed in all respects. 

        IN
WITNESS WHEREOF, this Amendment has been executed as of the date first written above. 

	

 	
 	

GENERAL PARTNER:
	

 	
 	

AIMCO-GP, INC.
	

 	
 	

By:	
 	

/s/  PAUL J. MCAULIFFE      
 Name:  Paul J. McAuliffe

Title:    Executive Vice President and Chief Financial Officer

   EXHIBIT RR

PARTNERSHIP UNIT DESIGNATION

OF THE

CLASS VII HIGH PERFORMANCE PARTNERSHIP UNITS

OF AIMCO PROPERTIES, L.P.  

1.     Number of Units and Designation.  

        A class of Partnership Units is hereby designated as "Class VII High Performance Partnership Units," and the number of Partnership Units initially
constituting such class shall be five thousand (5,000), subject to adjustment at the Class VII High Performance Valuation Date, as provided in Section 3 hereof. 

2.     Definitions.

        For
purposes of this Partnership Unit Designation, the following terms shall have the meanings indicated in this Section 2. Capitalized terms used and not otherwise defined herein
shall have the meanings assigned thereto in the Agreement. 

        "AIMCO Equity Capitalization" shall mean the quotient obtained by dividing (i) the sum of the AIMCO Market Values for each trading
day included in the Measurement Period, by (ii) the number of trading days included in the Measurement Period. 

        "AIMCO Market Value" shall mean, for any date, the product of (i) the number of REIT Shares and Partnership Units (other than
Partnership Preferred Units) outstanding as of the close of business on such date, multiplied by (ii) the Value of a REIT Share on such date. 

        "AIMCO Total Return" shall mean the Total Return of the REIT Shares for the Measurement Period;  provided, however, that,
for purposes of calculating the security price of the REIT Shares (i) at
the beginning of the Measurement Period, such price shall be $34.50 and (ii) at the end of the Measurement Period, such price shall be the average of the daily market prices for twenty
(20) consecutive trading days ending immediately prior to the Class VII High Performance Valuation Date. The market price for any such trading day shall be: 

        (a)   if
the REIT Shares are listed or admitted to trading on any securities exchange or The Nasdaq Stock Market's National Market System, the volume-weighted average of
trading prices on such day, as reported by Bloomberg Financial Markets (or another reliable source selected by the General Partner), or if no trade takes place on such day, the average of the closing
bid and asked prices on such day, as reported in the principal consolidated transaction reporting system; 

        (b)   if
the REIT Shares are not listed or admitted to trading on any securities exchange or The Nasdaq Stock Market's National Market System, the last reported sale price on
such day or, if no sale takes place on such day, the average of the closing bid and asked prices on such day, as reported by a reliable quotation source designated by the General Partner; or 

        (c)   if
the REIT Shares are not listed or admitted to trading on any securities exchange or The Nasdaq Stock Market's National Market System and no such last reported sale
price or closing bid and asked prices are available, the average of the reported high bid and low asked prices on such day, as reported by a reliable quotation source designated by the General
Partner, or if there shall be no bid and asked prices on such day, the average of the high bid and low asked prices, as so reported, on the most recent day (not more than ten (10) days prior to
the date in question) for which prices have been so reported; 

provided,
however, that, if there are no bid and asked prices reported during the ten (10) days prior to the date in question, the market price of the REIT Shares shall be determined by the
General Partner 

RR-1

 

acting
in good faith on the basis of such quotations and other information as it considers, in its reasonable judgment, appropriate. 

        "Agreement" shall mean the Third Amended and Restated Agreement of Limited Partnership of the Partnership, as amended from time to time. 

        "Change of Control" shall mean the occurrence of any of the following events: 

        (i)    an
acquisition (other than directly from the Previous General Partner) of any voting securities of the Previous General Partner (the "Voting
Securities") by any "person" (as the term "person" is used for purposes of Section 13(d) or Section 14(d) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act")) immediately after which such person has "beneficial ownership" (within the meaning of Rule 13d-3
promulgated under the Exchange Act) ("Beneficial Ownership") of 20% or more of the combined voting power of the Previous General Partner's then
outstanding Voting Securities; provided, however, in determining whether a Change of Control has occurred, Voting Securities that are acquired in a Non-Control Acquisition (as hereinafter
defined) shall not constitute an acquisition that would cause a Change of Control. "Non-Control Acquisition" shall mean an acquisition by
(A) an employee benefit plan (or a trust forming a part thereof) maintained by (1) the Previous General Partner or (2) any corporation, partnership or other person of which a
majority of its voting power or its equity securities or equity interest is owned directly or indirectly by the Previous General Partner or in which the Previous General Partner serves as a general
partner or manager (a "Subsidiary"), (B) the Previous General Partner or any Subsidiary, or (C) any person in connection with a
Non-Control Transaction (as hereinafter defined); 

        (ii)   the
individuals who constitute the Board of Directors of the Previous General Partner as of January 1, 2004 (the "Incumbent
Board") cease for any reason to constitute at least two-thirds (2/3) of the Board of Directors; provided, however, that if the election, or
nomination for election by the Previous General Partner's stockholders, of any new director was approved by a vote of at least two-thirds (2/3) of the Incumbent Board, such
new director shall be considered as a member of the Incumbent Board; provided, further, that no individual shall be considered a member of the Incumbent Board if such individual initially assumed
office as a result of either an actual or threatened "election contest" (as described in Rule 14a-11 promulgated under the Exchange Act) (an "Election
Contest") or other actual or threatened solicitation of proxies or consents by or on behalf of a person other than the Board of Directors (a "Proxy
Contest") including by reason of any agreement intended to avoid or settle any Election Contest or Proxy Contest; or 

        (iii)  approval
by stockholders of the Previous General Partner of: (A) a merger, consolidation, share exchange or reorganization involving the Previous General
Partner, unless (1) the stockholders of the Previous General Partner, immediately before such merger, consolidation, share exchange or reorganization, own, directly or indirectly immediately
following such merger, consolidation, share exchange or reorganization, at least 80% of the combined voting power of the outstanding voting securities of the corporation that is the successor in such
merger, consolidation, share exchange or reorganization (the "Surviving Company") in substantially the same proportion as their ownership of the Voting
Securities immediately before such merger, consolidation, share exchange or reorganization, (2) the individuals who were members of the Incumbent Board immediately prior to the execution of the
agreement providing for such merger, consolidation, share exchange or reorganization constitute at least two-thirds (2/3) of the members of the board of directors of the
Surviving Company, and (3) no persons (other than the Previous General Partner or any Subsidiary, any employee benefit plan (or any trust forming a part thereof) maintained by the Previous
General Partner, the Surviving Company or any Subsidiary, or any person who, immediately prior to such merger, consolidation, share exchange or reorganization had Beneficial Ownership of 15% or more
of the then outstanding Voting Securities has Beneficial Ownership of 

RR-2

 

15%
or more of the combined voting power of the Surviving Company's then outstanding voting securities (a transaction described in clauses (1) through (3) is referred to herein as a  "Non-Control
Transaction"); (B) a complete liquidation or dissolution of the Previous General Partner; or (C) an agreement for
the sale or other disposition of all or substantially all of the assets of the Previous General Partner to any person (other than a transfer to a Subsidiary). 

        Notwithstanding
the foregoing, a Change of Control shall not be deemed to occur solely because any person (a "Subject Person") acquired
Beneficial Ownership of more than the permitted amount of the outstanding Voting Securities as a result of the acquisition of Voting Securities by the Previous General Partner that, by reducing the
number of Voting Securities outstanding, increases the proportional number of shares Beneficially Owned by such Subject Person, provided that if a Change of Control would occur (but for the operation
of this sentence) as a result of the acquisition of Voting Securities by the Previous General Partner, and after such share acquisition by the Previous General Partner, such Subject Person becomes the
Beneficial Owner of any additional Voting Securities that increases the percentage of the then outstanding Voting Securities Beneficially Owned by such Subject Person, then a Change of Control shall
occur. 

        "Class VII High Performance Cash Amount" shall mean, as of any date, the lesser of (i) an amount of cash equal to amount
that a Holder would receive in respect of each Class VII High Performance Partnership Unit if the Partnership sold all of its properties at their fair market value (which may be determined by
reference to the Value of a REIT Share), paid all of its debts and distributed the remaining proceeds to the Partners as provided in Section 13.2 of the Agreement, determined as of the
applicable Valuation Date, or (ii) in the case of a Declination followed by a Public Offering Funding, the Public Offering Funding Amount. 

        "Class VII High Performance Partnership Unit" shall mean a Partnership Unit with the designations, preferences and relative,
participating, optional or other special rights, powers and duties as are set forth in this Exhibit RR. 

        "Class VII High Performance Valuation Date" shall mean the earlier to occur of (i) January 1, 2007, or
(ii) the date on which a Change of Control occurs. 

        "Determination Date" shall mean (i) when used with respect to any dividend or other distribution, the date fixed for the
determination of the holders of the securities entitled to receive such dividend or distribution, or, if a dividend or distribution is paid or made without fixing such a date, the date of such
dividend or distribution, and (ii) when used with respect to any split, subdivision, reverse stock split, combination or reclassification of securities, the date upon which such split,
subdivision, reverse stock split, combination or reclassification becomes effective. 

        "Dilution Limit" shall mean an amount equal to 1.0% of the total number of REIT Shares and Partnership Common Units outstanding on the
Class VII High Performance Valuation Date, on a fully diluted basis (excluding any Partnership Common Units held by the Previous General Partner or any of its wholly owned subsidiaries). 

        "Ex-Date" shall mean (i) when used with respect to any dividend or distribution, the first date on which the securities
in respect of which the dividend or distribution is payable trade regular way on the relevant exchange or in the relevant market without the right to receive such dividend or distribution, and
(ii) when used with respect to any split, subdivision, reverse stock split, combination or reclassification of securities, the first date on which the securities trade regular way on such
exchange or in such market to reflect such split, subdivision, reverse stock split, combination or reclassification becoming effective. 

        "Extraordinary Distribution" shall mean the distribution by the Previous General Partner, by dividend or otherwise, to all holders of its
REIT Shares of evidences of its indebtedness or assets (including securities) other than cash. 

RR-3

 

        "Hurdle Rate of Return" shall mean the greater of (i) 36.8% (or if the Measurement Period is less than three years, a
percentage equal to the return over the Measurement Period that would result in a cumulative return of 36.8% over a three year period with annual compounding) or (ii) 115% of the Industry Total
Return. 

        "Industry Total Return" shall mean the Total Return of the securities included in the Industry Peer Group Index for the Measurement
Period, with such average determined in a manner consistent with the manner in which such index is calculated; provided,  however, that if such Total Return
would be less than zero without giving effect to the reinvestment of dividends, then the "Industry Total Return"
shall be equal to zero. 

        "Industry Peer Group Index" shall mean the Morgan Stanley Dean Witter REIT Index or any other similar industry index approved by the Board
of Directors of the Previous General Partner. 

        "Measurement Period" shall mean the period from and including January 1, 2004 to but excluding the Class VII High
Performance Valuation Date. 

        "Outperformance Return" shall mean the amount (measured as a percentage), if any, by which the AIMCO Total Return exceeds the Hurdle Rate
of Return. If the AIMCO Total Return does not exceed the Hurdle Rate of Return, "Outperformance Return" shall be 0%. 

        "Partnership" shall mean AIMCO Properties, L.P., a Delaware limited partnership. 

        "Total Return" shall mean, 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 dividends other than Extraordinary Distributions 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 (1) the security price at the
end of such period, minus (2) 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. 

        "Value" shall have the meaning set forth in the Agreement, except that Value shall be determined by reference to the average of the daily
market prices for twenty (20) consecutive trading days rather than ten (10) consecutive trading days. 

3.     Adjustment of Units at Class VII High Performance Valuation Date.  

        On the Class VII High Performance Valuation Date, without any action on the part of the Partnership, the General Partner or the Holder of any
Class VII High Performance Partnership Unit, each Class VII
High Performance Partnership Unit shall automatically be adjusted to equal (a) if the Outperformance Return is 0%, 1/100 of a Class VII High Performance Partnership Unit, or
(b) if the Outperformance Return is greater than 0%, the lesser of (i) the Dilution Limit divided by 5,000, or (ii) the quotient obtained by dividing (x) the product of
(A) 5% of the Outperformance Return, multiplied by (B) the AIMCO Equity Capitalization, by (y) the product of (A) 5,000 and (B) the Value of a REIT Share on the
Class VII High Performance Valuation Date. For illustrative purposes, examples of the calculation of adjustments to the number Class VII High Performance Partnership Units are set forth
in Annex I hereto. 

4.     Distributions.  

        (a)   Prior
to the Class VII High Performance Valuation Date, Holders of Class VII High Performance Partnership Units shall be entitled to receive distributions
(other than distributions upon liquidation) if, as, when and in the same amounts and of the same type as may be paid to 

RR-4

 

Holders
of Partnership Common Units as if each Class VII High Performance Partnership Unit was 1/100 of a Partnership Common Unit. 

        (b)   On
and after the Class VII High Performance Valuation Date, the Holders of Class VII High Performance Partnership Units shall be entitled to receive
distributions (other than distributions upon liquidation) if, as, when and in the same amounts and of the same type as may be paid to Holders of Partnership Common Units as if each Class VII
High Performance Partnership Unit was a Partnership Common Unit originally issued on the Class VII High Performance Valuation Date. 

5.     Allocations.  

        (a)   Prior
to the Class VII High Performance Valuation Date, Net Income and Net Loss shall be allocated to the Holders of Class VII High Performance Partnership
Units as if each Class VII High Performance Partnership Unit was 1/100 of a Partnership Common Unit. 

        (b)   On
and after the Class VII High Performance Valuation Date, Net Income and Net Loss shall be allocated to the Holders of Class VII High Performance
Partnership Units as if each Class VII High Performance Partnership Unit was a Partnership Common Unit originally issued on the Class VII High Performance Valuation Date; provided,
however, that if the Outperformance Return is 0% on the Class VII High Performance Valuation Date, then as of the last day of the Measurement Period, each of the Holders of Class VII
High Performance Partnership Units shall be specially allocated Net Loss or deduction in an amount equal to (i) the excess of (x) the aggregate Class VII High Performance
Partnership Unit capital contributions over (y) the fair market value of the Class VII High Performance Partnership Units as of such date, after applying the adjustments required by
Section 3 of this Partnership Unit Designation, divided by (ii) the number of Class VII High Performance Partnership Units held by such Holder. 

        (c)   In
the event that the Partnership disposes of all or substantially all of its assets in a transaction that will lead to a liquidation of the Partnership pursuant to
Article XIII of the Agreement, then, notwithstanding Section 6.3.C of the Agreement, each Holder of Class VII High Performance Partnership Units shall be specifically allocated
items of Partnership income and gain in an amount sufficient to cause the Capital Account of such Holder to be equal to that of a Holder of an equal number of Partnership Common Units. 

6.     Redemption.  

        Upon the occurrence of a Change of Control, and subject to the applicable requirements of Federal securities laws and any securities exchange or quotation system
rules or regulations, each Holder of Class VII High Performance Partnership Units shall have the redemption rights of Qualifying Parties set forth in Section 8.6 of the Agreement, except
that (i) all references therein to "Redeemable Units" or "Partnership Common Units" shall be deemed to be references to Class VII High Performance Partnership Units, (ii) the
first Twelve-Month Period applicable to all Class VII High Performance Partnership Units shall be deemed to have passed, (iii) all references therein to "Cash Amount" shall be deemed to
be references to the Class VII High Performance Cash Amount, and (iv) in the event that the Previous General Partner elects to acquire Class VII High Performance Partnership Units
that have been tendered for Redemption, the Previous General Partner shall acquire each such Class VII High Performance Partnership Unit in exchange for a number of REIT Shares equal to the
quotient obtained by dividing the Class VII High Performance Cash Amount by the Value of a REIT Share, determined as of the applicable Valuation Date. 

RR-5

 

7.     Status of Reacquired Units.  

        All Class VII High Performance Partnership Units which shall have been issued and reacquired in any manner by the Partnership shall be deemed cancelled and
no longer outstanding. 

8.     Restrictions on Ownership and Transfer.  

        The restrictions on Transfer set forth in Sections 11.1.B and 11.3.A of the Agreement shall not apply to Transfers of Class VII High Performance
Partnership Units. Prior to the Class VII High Performance Valuation Date, the Class VII High Performance Partnership Units shall be owned and held solely by SMP 2007, L.L.C., a Delaware
limited liability company (the "SMP"). On or after the Class VII High Performance Valuation Date, the Class VII High Performance
Partnership Units may be Transferred (i) by the SMP to (a) any Person who is a member (a "Member") of the SMP immediately prior to such
transfer, (b) a Family Member of a Member, (c) a Controlled Entity of a Member, (c) any Person with respect to whom the Member constitutes a Controlled Entity, (d) upon the
death of a Member, by will or by the laws of descent and distribution to any Qualified Transferee, and (ii) by any other Person to (a) a Family Member of a such Person, (b) a
Controlled Entity of such Person, (c) any other Person with respect to whom such Person constitutes a Controlled Entity, (d) upon the death of such Person, by will or by the laws of
descent and distribution to any Qualified Transferee. 

Voting Rights.  

        Each Holder of Class VII High Performance Partnership Units shall have the same voting and approval rights as a Holder of an equal number of Partnership
Common Units. 

9.     Adjustments.  

        (a)   In
the event of any Extraordinary Distribution occurring on or after January 1, 2004, for purposes of determining the Value of a REIT Share or the AIMCO Total
Return, each price of a REIT Share determined as of a date on or after the Ex-Date for such Extraordinary Distribution shall be adjusted by multiplying such price by a fraction
(i) the numerator of which shall be the price of a REIT Share on the date immediately prior to such Ex-Date, and (ii) the denominator of which shall be (A) the price
of a REIT Share on the date immediately prior to such Ex-Date, minus (B) the fair market value on the date fixed for such determination of the portion of the evidences of
indebtedness or assets so distributed applicable to one REIT Share (as determined by the General Partner, whose determination shall be conclusive); provided further, that such amount shall be so
adjusted for each such Extraordinary Distribution occurring on or after January 1, 2004. 

        (b)   In
the event that, on or after January 1, 2004, the Previous General Partner (i) declares or pays a dividend on its outstanding REIT Shares in REIT Shares
or makes a distribution to all holders of its outstanding REIT Shares in REIT Shares, (ii) splits or subdivides its outstanding REIT Shares, (iii) effects a reverse stock split or
otherwise combines its outstanding REIT Shares into a smaller number of REIT Shares, or (iv) otherwise reclassifies its outstanding REIT Shares, then, for purposes of determining the Value of a
REIT Share or the AIMCO Total Return, each price of a REIT Share determined as of a date on or after the Ex-Date for such transaction shall be adjusted by multiplying such price by a
fraction (x) the numerator of which shall be the number of REIT Shares issued and outstanding on the Determination Date for such dividend, distribution, split, subdivision, reverse stock split,
combination or reclassification (assuming for such purposes that such dividend, distribution, split, subdivision, reverse split or combination has occurred as of such time) and (y) the
denominator of which shall be the actual number of REIT Shares (determined without the above assumption) issued and outstanding on the Determination Date for such dividend, distribution, split,
subdivision, reverse stock split, combination or reclassification. 

RR-6

 

        (c)   The
General Partner shall have authority to appropriately adjust the AIMCO Market Value, the AIMCO Total Return or the Value of a REIT Share if any other transaction or
circumstance occurs or arises that would have an inequitable result. 

10.   General.  

        Class VII High Performance Partnership Units shall be evidenced by certificates in the form of Annex II hereto, or in such other form as the General
Partner shall specify from time to time. The Class VII High Performance Partnership Units shall be securities governed by Article 8 of the Uniform Commercial Code. Each certificate
evidencing a Class VII High Performance Partnership Unit shall bear the following legend: "This certificate evidences an interest in AIMCO Properties, L.P. and shall be a security for purposes
of the Uniform Commercial Code." This provision shall not be amended, and any purported amendment to this provision shall not take effect until all outstanding certificates have been surrendered for
cancellation. The General Partner shall amend Exhibit A to the Agreement from time to time to the extent necessary to reflect accurately the issuance of, and subsequent conversion, redemption,
or any other event having an effect on the ownership of, Class VII High Performance Partnership Units. 

RR-7

   ANNEX I TO

EXHIBIT RR  

Numerical Examples of the Calculation of the Adjustment to the Number of Class VII

High Performance Partnership Units on the Class VII High Performance

Valuation Date  

        The following table illustrates the adjustment that would be made to the number of Class VII High Performance Partnership Units ("HPUs") on the
Class VII High Performance Valuation Date under different circumstances. Except as otherwise indicated, it is assumed, for purposes of the illustration, that: (i) the Class VII
High Performance Valuation Date is January 1, 2007; (ii) the Industry Total Return is 36.8%, resulting in a Hurdle Rate of Return of 42.3%; and (iii) the AIMCO Equity
Capitalization is $3.641 billion. 

	Stock

Price
 
	 	AIMCO

Total

Return
	 	Outperformance

Return
	 	AIMCO

Equity

Capitalization

(Millions)
	 	Number of

HPUs

	$38.00	 	31.01	%	0.00	%	$	3,641	 	50
	40.00	 	36.81	%	0.05	%	$	3,641	 	2,348
	42.00	 	42.61	%	5.85	%	$	3,641	 	253,525
	44.00	 	48.41	%	11.65	%	$	3,641	 	481,867
	46.00	 	54.20	%	17.44	%	$	3,641	 	690,353
	48.00	 	60.00	%	23.24	%	$	3,641	 	881,465
	50.00	 	65.80	%	29.04	%	$	3,641	 	1,057,289
	52.00	 	71.59	%	34.83	%	$	3,641	 	1,083,830*

	*
	The
number of HPUs has been restricted based on the Dilution Limit. 

RR-8

   ANNEX II TO

EXHIBIT RR  

        THE SECURITY EVIDENCED HEREBY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION, UNLESS THE TRANSFEROR DELIVERS TO AIMCO PROPERTIES, L.P. AN OPINION OF COUNSEL, IN FORM AND SUBSTANCE SATISFACTORY TO
THE PARTNERSHIP, TO THE EFFECT THAT THE PROPOSED SALE, TRANSFER OR OTHER DISPOSITION MAY BE EFFECTED WITHOUT REGISTRATION UNDER THE ACT AND UNDER APPLICABLE STATE SECURITIES OR "BLUE SKY" LAWS.
IN ADDITION, THE LIMITED PARTNERSHIP INTEREST EVIDENCED BY THIS CERTIFICATE MAY BE SOLD OR OTHERWISE TRANSFERRED ONLY IN COMPLIANCE WITH THE RESTRICTIONS ON TRANSFER SET FORTH IN THE THIRD
AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P., DATED AS OF JULY 29, 1994, AS AMENDED, A COPY OF WHICH MAY BE OBTAINED FROM
AIMCO-GP, INC., THE GENERAL PARTNER, AT ITS PRINCIPAL EXECUTIVE OFFICE. 

        THIS
CERTIFICATE EVIDENCES AN INTEREST IN AIMCO PROPERTIES, L.P. AND SHALL BE A SECURITY FOR PURPOSES OF ARTICLE 8 OF THE UNIFORM COMMERCIAL CODE. 

	             Units	 	Certificate Number             

AIMCO PROPERTIES, L.P.

FORMED UNDER THE LAWS OF THE STATE OF DELAWARE

CLASS VII HIGH PERFORMANCE PARTNERSHIP UNITS  

        This certifies that                        is the owner
of            Class VII High Performance Partnership Units of AIMCO Properties, L.P., a Delaware
limited partnership. This Certificate and the Class VII High Performance Partnership Units represented hereby are issued and shall be held subject to all of the provisions of the Agreement of
Limited Partnership of AIMCO Properties, L.P., as amended and/or supplemented from time to time. 

        IN
WITNESS WHEREOF, the General Partner of AIMCO Properties, L.P. has caused this Certificate to be signed by an authorized person on this    day of            ,
            

	

 	
 	

By:	
 	

AIMCO-GP, Inc.,
	

 	
 	

By:	
 	

 Name:

Title:

RR-9

 
[REVERSE
OF CERTIFICATE] 

        For
Value Received,                        hereby sells, assigns and transfers
unto                        

        Class VII
High Performance Partnership Units represented by the within Certificate, and does hereby irrevocably constitute and appoint the General Partner of AIMCO Properties,
L.P. as its Attorney to transfer said Class VII High Performance Partnership Units on the books of AIMCO Properties, L.P. with full power of substitution in the premises. 

	

Dated:                                     	
 	

 	
 	

 
	

 	
 	

By:	
 	

	 	 	Name:

RR-10

QuickLinks

FORTIETH AMENDMENT TO THE THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P.<Page>

                                                                  Exhibit 10.1

                       FIRST AMENDMENT TO CREDIT AGREEMENT

         FIRST AMENDMENT TO CREDIT AGREEMENT ("First Amendment") dated as of
June 30, 2004 among and between Genzyme Corporation (the "Company"); each of the
financial institutions identified under the caption "Lenders" on the signature
pages hereto; and Fleet National Bank ("Fleet") as administrative agent for the
Lenders (the "Administrative Agent").

         Reference is made to the Credit Agreement dated as of December 10,
2003, among and between the Company, the Subsidiary Guarantors party thereto,
the Lenders, and the Administrative Agent, pursuant to which the Lenders
furnished to the Company a $350,000,000 revolving line of credit (as amended
hereby, the "Credit Agreement"). Capitalized terms used in this First Amendment
have the meanings given such terms in the Credit Agreement, as amended hereby,
except as provided otherwise herein.

         The Company has requested that the Credit Agreement be amended in
respect of the amount of additional Indebtedness the Company and its
Subsidiaries may incur, as set forth below. Under Section 12.5 of the Credit
Agreement, this First Amendment, to be effective, must be signed by the Company,
the Administrative Agent and the Lenders constituting the Required Lenders.

1. AMENDMENT: SECTION 9.7(J)--ADDITIONAL INDEBTEDNESS. Section 9.7(j) of the
Credit Agreement is hereby amended to replace the figure "$700,000,000", both
times it appears in such section, with the figure "$800,000,000" in lieu
thereof.

2. REPRESENTATIONS AND WARRANTIES. In order to induce the Administrative Agent
and Required Lenders to enter into this First Amendment, the Company makes the
following representations and warranties, all of which shall survive the
execution and delivery of this First Amendment:

         (a) The Company has all requisite corporate power and authority to
execute, deliver and perform its obligations under this First Amendment and
under the Credit Agreement, as amended hereby. This First Amendment has been
duly authorized, executed and delivered by the Company, and does not conflict
with, violate or result in a breach of or require any consent under (i) any
applicable law or regulation or any of the terms of the charter or by-laws of
the Company, or (ii) any agreement or instrument to which the Company or any
Subsidiary is a party or to which any of them or their Property is bound or to
which any of them is subject; except to the extent, with respect to the
foregoing clause (ii), any such conflict, violation, or breach, or the failure
to have any such consent, (x) could not reasonably be expected (either
individually or in the aggregate) to have a Material Adverse Effect and (y) does
not and will not result in any liability of the Administrative Agent or any
Lender or in the acceleration or required prepayment of any Indebtedness or the
termination of any commitments to extend credit. This First Amendment and the
Credit Agreement, as amended hereby, constitute the legal, valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms.

                                       1
<Page>

         (b) On the date hereof each of the representations and warranties in
the Credit Agreement are true, accurate and complete in all material respects
(other than those representations and warranties made as of a specific date,
which were true, accurate and complete in all material respects as of such
specific date).

         (c) Upon the execution and delivery of this First Amendment, and the
satisfaction of each of the conditions precedent set forth in Section 3 of this
First Amendment, no Default or Event of Default shall exist and be continuing.

3. CONDITIONS PRECEDENT. The agreements contained herein and the amendments
contemplated hereby shall become effective when the Company, the Required
Lenders, and the Administrative Agent shall have executed this First Amendment
and when each of the following conditions shall have been fulfilled (the
"Effective Date"):

         (a) EXECUTION OF DOCUMENTS, ETC. This First Amendment and any other
agreements, documents and instruments to be executed and/or delivered in
connection herewith (collectively the "First Amendment Documents") shall have
been duly and properly authorized and executed by: the Company, the
Administrative Agent, and the Required Lenders and shall be in full force and
effect on and as of the Effective Date of this First Amendment and all
representations and warranties of the Company hereunder shall continue to be
true, accurate and complete.

         (b) PROCEEDINGS; RECEIPT OF DOCUMENTS. All requisite corporate action
and proceedings of the Company in connection with the execution and delivery of
this First Amendment shall be satisfactory in form and substance to the
Administrative Agent and its counsel, and the Administrative Agent and its
counsel shall have received all information and copies of all documents,
including without limitation, records of requisite corporate action and
proceedings which the Administrative Agent or its counsel may have requested in
connection therewith, such documents where requested by the Administrative Agent
or its counsel to be certified by appropriate persons or governmental
authorities.

         (c) MATERIAL LITIGATION. There shall be no pending or, to the best
knowledge of the Company, threatened litigation with respect to the Company
before any court, arbitrator or governmental or administrative body or agency
which challenges or relates to (i) the lending transactions contemplated hereby
or (ii) the Loan Documents.

         (d) FEES. The Company shall have reimbursed the Administrative Agent on
account of the reasonable fees and expenses of counsel to the Administrative
Agent.

4. REAFFIRMATION AND RATIFICATION OF EXISTING AGREEMENTS, ETC. The Company: (i)
reaffirms and ratifies all the Obligations to the Agents and the Lenders, in
respect of the Credit Agreement, as hereby amended, and the other Loan
Documents, (ii) certifies that there are no defenses, offsets or counterclaims
to such Obligations as of the date hereof, (iii) expressly acknowledges its
continuing liability pursuant thereto, and (iv) agrees that each of the Credit
Agreement, as amended hereby, and the other Loan Documents shall remain in full
force and effect, enforceable against the Company in accordance with its terms.

                                       2
<Page>

5. MISCELLANEOUS.

         (a) This First Amendment may be executed on separate counterparts by
the parties hereto, each of which when so executed and delivered shall be an
original, but all of which shall constitute one and the same agreement.

         (b) This First Amendment and the rights and obligations of the parties
hereunder shall be construed in accordance with and be governed by the laws of
the Commonwealth of Massachusetts (without giving effect to the conflict of law
principles thereof).

         (c) The headings of the several sections of this First Amendment are
inserted for convenience only and shall not in any way affect the meaning or
construction of any provision of this First Amendment.

         (d) This First Amendment embodies the entire agreement and
understanding among the parties relating to the subject matter hereof and
supersedes all prior proposals, negotiation, agreements and understandings
relating to such subject matter.

         (e) This First Amendment shall be deemed to be a Loan Document under
the Credit Agreement.

         (f) EACH OF THE OBLIGORS, THE AGENTS AND THE LENDERS HEREBY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS FIRST
AMENDMENT, OR THE TRANSACTIONS CONTEMPLATED HEREBY.

         (g) The Company shall pay on demand the reasonable costs and expenses,
including, without limitation, reasonable attorneys' fees and expenses incurred,
or which may be incurred by the Agents or the Lenders in connection with the
negotiation, documentation, administration and enforcement of this First
Amendment.

            [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

                                       3
<Page>

         IN WITNESS WHEREOF, this First Amendment has been duly executed and
delivered as a sealed instrument at Boston, Massachusetts as of the date first
above written.

                                     THE COMPANY:

                                     GENZYME CORPORATION

                                     By: /s/ MICHAEL S. WYZGA
                                         --------------------------------------
                                         Title:  Executive Vice President and
                                                 Chief Financial Officer

                                     THE SUBSIDIARY GUARANTOR:

                                     SANGSTAT MEDICAL CORPORATION

                                     By: /s/ GEORGES GEMAYEL
                                         --------------------------------------
                                         Title:  President

                                       4
<Page>

                                     ADMINISTRATIVE AGENT:

                                     FLEET NATIONAL BANK

                                     By: /s/ ANTHEA DEL BIANCO
                                         --------------------------------------
                                         Title:  Vice President

                                       5
<Page>

LENDERS:

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                FLEET NATIONAL BANK

$50,000,000.00                              By: /s/ CRAIG MURLLESS
--------------                                  -------------------------------
                                                Title:  Principal

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                THE BANK OF NOVA SCOTIA

$35,000,000.00                              By: /s/ CAROLYN A. CALLOWAY
--------------                                  -------------------------------
                                                Title:  Managing Director

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                CITIZENS BANK OF MASSACHUSETTS

$35,000,000.00                              By: /s/ R. SCOTT HASKELL
--------------                                  -------------------------------
                                                Title:  Vice President

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                WACHOVIA BANK, National Association

$35,000,000.00                              By: /s/ JEANETTE A. GRIFFIN
--------------                                  -------------------------------
                                                Title:  Director

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                BANK OF TOKYO-MITSUBISHI TRUST
                                            COMPANY

$30,000,000.00                              By: /s/ LILLIAN KIM
--------------                                  -------------------------------
                                                Title:  Vice President

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                KEYBANK NATIONAL ASSOCIATION

$25,000,000.00                              By: /s/  JAMES A. TAYLOR
--------------                                  -------------------------------
                                                Title:  Vice President

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                MELLON BANK, N.A.

$25,000,000.00                              By: /s/  J. WADE BELL
--------------                                  -------------------------------
                                                Title:  Vice President

             [Signature Page to First Amendment to Credit Agreement]

<Page>

         The undersigned Lender, with the Revolving Credit Commitment set forth
below, hereby enters into the foregoing First Amendment To Credit Agreement
dated as of June 30, 2004.

Revolving Credit Commitment:                THE GOVERNOR AND COMPANY OF THE
                                            BANK OF IRELAND

$15,000,000.00                              By: /s/  EOGHAM DOYLE
--------------                                  -------------------------------
                                                Title:  Deputy Manager

             [Signature Page to First Amendment to Credit Agreement]

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00070-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00070-of-00352.parquet"}]]