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                                                                   EXHIBIT 10.12

                            VOTING AGREEMENT

        VOTING AGREEMENT, dated as of November 1, 2002, by and among Krupp
Government Income Trust, a Massachusetts business trust ("GIT"), Krupp
Government Income Trust II, a Massachusetts business trust ("GIT II" and,
collectively with GIT, the "TRUSTS"), and Berkshire Income Realty, Inc. ("BIR"),
a Maryland corporation.

        WHEREAS, BIR intends to commence exchange offers pursuant to which it
will seek to acquire shares of beneficial interest, no par value, of each of the
Trusts (the "SHARES") in exchange for shares of BIR's Series A Cumulative
Redeemable Preferred Stock (collectively, the "Exchange Offers"); and

        WHEREAS, BIR desires to enter into this Agreement in order to address
concerns that might be raised by the holders of Shares who decide not to tender
their Shares in the Exchange Offer that BIR might use the voting power of the
Shares acquired by it in the Exchange Offer in a manner that may not be
consistent with the interests of such holders.

        NOW, THEREFORE, in consideration of the above recitals and the mutual
covenants and agreements made herein, the parties hereto agree as follows:

        1.  VOTING AGREEMENT. Subject to Section 2 below, BIR hereby agrees, so
long as it or any of its affiliates has voting power with respect to any Shares
(regardless of whether such Shares have been acquired in the Exchange Offers or
otherwise) (the "BIR SHARES"), that, at any meeting of the holders of Shares of
GIT or GIT II, however called, or in connection with a written consent of the
holders of Shares of GIT or GIT II, BIR shall vote or consent (or cause to be
voted or consented) with respect to any matter brought before such holders of
Shares, all of the BIR Shares in proportion to the votes cast by the other
holders of Shares of GIT and GIT II, respectively.

        2.  EFFECTIVENESS. This Agreement shall not be effective unless and
until the Exchange Offers have been completed and BIR has acquired Shares
pursuant thereto.

        3.  ASSIGNMENT; NO THIRD-PARTY BENEFICIARY. This Agreement may not be
assigned by a party without the consent of the other parties hereto. This
Agreement shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and permitted assigns. Except as expressly
provided herein, this Agreement is for the sole benefit of the parties and their
successors and permitted assignees and nothing herein expressed or implied shall
give or be construed to give any other person, any legal or equitable rights
hereunder.

        4.  AMENDMENTS. No amendment of this Agreement shall be valid and
binding unless the same shall be in writing and signed by each of the Trusts,
whose execution may only be authorized with the approval of a majority of the
independent trustees of the Board of Trustees of each of the Trusts, and by BIR.

        5.  ENTIRE AGREEMENT. This Agreement constitutes the entire agreement
among the parties hereto with respect to the subject matter hereof, and
supersedes any and all prior discussions or agreements, whether written or oral,
with respect thereto.

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        6.  COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which shall be deemed an original, but all of which
together shall constitute but one and the same instrument.

        7.  HEADINGS. The headings contained in this Agreement are for
convenience purposes only and shall not in any way affect the meaning or
interpretation hereof.

        8.  GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the domestic substantive laws of The Commonwealth of
Massachusetts, without giving effect to any choice or conflict of law provision
or rule that would cause the application of the laws of any other jurisdiction.

        IN WITNESS WHEREOF, each of the undersigned has executed this Agreement
as of the date first above written.

                                          KRUPP GOVERNMENT INCOME TRUST

                                          By: /s/ Douglas Krupp
                                             -----------------------------------
                                             Name:  Douglas Krupp
                                             Title: Chairman

                                          KRUPP GOVERNMENT INCOME TRUST II

                                          By: /s/ Douglas Krupp
                                             -----------------------------------
                                             Name:  Douglas Krupp
                                             Title: Chairman

                                          BERKSHIRE INCOME REALTY, INC.

                                          By: /s/ David Quade
                                             -----------------------------------
                                             Name:  David Quade
                                             Title: PresidentQuickLinks
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Exhibit 10.1    
  

FOURTH AMENDMENT  

THIS
FOURTH AMENDMENT (this "Amendment"), dated as of September 27, 2002, is entered into by and among LOUISIANA-PACIFIC CORPORATION, a Delaware
corporation (the "Borrower"), BANK OF AMERICA, N.A., as agent for the Lenders (the "Administrative
Agent") and those financial institutions parties to the Credit Agreement as defined below (collectively, the "Lenders")
signatory hereto. 

RECITALS 

        A.    The
Borrower, the Lenders and the Administrative Agent are parties to a Credit Agreement dated as of November 15, 2001 (as amended, modified or supplemented from
time to time, including, without limitation, pursuant to the Third Amendment, dated as of August 2, 2002 the "Credit Agreement"), pursuant to
which the Administrative Agent and the Lenders have extended certain credit facilities to the Borrower. 

        B.    The
Borrower has reported to the Administrative Agent that Schedule 5.13 to the Credit Agreement needs to be updated in order to report the occurrence of an ERISA
Event. The Borrower has requested that the Administrative Agent and the Lenders agree to amend Schedule 5.13 to the Credit Agreement to reflect such event. 

        C.    The
Lenders have agreed to such amendment subject to the terms and conditions of this Amendment. 

        NOW,
THEREFORE, the parties hereto hereby agree as follows: 

        1.    Defined Terms.    Unless otherwise defined herein, capitalized terms used herein shall have the meanings
assigned to them in the Credit Agreement. 

        2.    Amendment.    Schedule 5.13 to the Credit Agreement is amended and restated as set forth on the
replacement Schedule 5.13 attached hereto. 

        3.    Representations and Warranties.    The Borrower hereby represents and warrants as follows: 

        (a)  No
Default or Event of Default has occurred and is continuing (including without, limitation, any Default or Event of Default under Section 8.01(i) of the
Loan Agreement). 

        (b)  The
execution, delivery and performance by the Borrower of this Amendment has been duly authorized by all necessary corporate and other action and does not and will not
require any registration with, consent or approval of, notice to or action by, any person (including any Governmental Authority) in order to be effective and enforceable. The Credit Agreement, as
amended by this Amendment, constitutes the legal, valid and binding obligation of the Borrower, enforceable against the Borrower in accordance with its terms, without defense, counterclaim or offset
except as such enforcement may be limited by applicable bankruptcy, insolvency, reorganization or other similar laws relating to or limiting creditors' rights generally or by equitable principles
relating to enforceability whether enforcement is sought in a proceeding at law or in equity. 

        (c)  After
giving effect to this Amendment, all its representations and warranties contained in the Credit Agreement are true and correct as though made on and as of the
Effective Date (as defined below) (except to the extent such representations and warranties specifically relate to an earlier date, in which case they were true and correct as of such earlier date). 

        (d)  It
is entering into this Amendment on the basis of its own investigation and for its own reasons, without reliance upon the Administrative Agent, the Lenders (except for
the performance of the terms hereof applicable to them) or any other person. 

        4.    Effective Date.    This Amendment will become effective as of the date first written above (the
"Effective Date") provided that the Administrative Agent has received an original or facsimile of this
Amendment duly executed by the Required Lenders and the Borrower. 

        5.    Reservation of Rights.    The Borrower acknowledges and agrees that the execution and delivery of this Amendment
by the Administrative Agent and the Lenders party hereto shall not be deemed to create a course of dealing or otherwise obligate the Administrative Agent or any Lender to execute similar consents
under the same or similar circumstances in the future. 

        6.    Miscellaneous.    

        (a)  Except
as expressly set forth herein, this Amendment shall not by implication or otherwise limit, impair, constitute a waiver of, or otherwise affect the rights or
remedies of the Administrative Agent or the Lenders under the Credit Agreement, the Loan Documents, or any related documents, and shall not alter, modify, amend, or in any way affect the terms,
conditions, obligations, covenants, or agreements contained in the Credit Agreement, the Loan Documents, or any related documents, all of which are hereby ratified and affirmed in all respects and
shall continue in full force and effect. 

        (b)  This
Amendment shall be binding upon and inure to the benefit of the parties hereto and thereto and their respective successors and assigns. No third party beneficiaries
are intended in connection with this Amendment. 

        (c)  This
Amendment, shall be governed by, and construed in accordance with, the law of the state of New York applicable to agreements made and to be performed entirely
within such state; provided that the Administrative Agent and each Lender shall retain all rights arising under federal law. 

        (d)  This
Amendment, may be executed in any number of counterparts, each of which shall be deemed an original, but all such counterparts together shall constitute but one and
the same instrument. 

        (e)  This
Amendment, together with the Credit Agreement, contains the entire and exclusive agreement of the parties hereto with reference to the matters discussed herein and
therein. This Amendment, supersedes all prior drafts and communications with respect thereto. This Amendment may not be amended except in accordance with the provisions of Section 10.1 of the
Credit Agreement. 

        (f)    If
any term or provision of this Amendment, shall be deemed prohibited by or invalid under any applicable law, such provision shall be invalidated without affecting the
remaining provisions of this Amendment or the Credit Agreement, respectively. 

        (g)  The
Borrower hereby covenants to pay or to reimburse the Administrative Agent and the Lenders, upon demand, for all reasonable costs and expenses (including reasonable
attorney fees and expenses) incurred in connection with the development, preparation, negotiation, execution and delivery of this Amendment. 

        IN
WITNESS WHEREOF, the parties hereto have executed and delivered this Amendment as of the date first above written. 

	 	 	LOUISIANA-PACIFIC CORPORATION,

as the Borrower
	

 	
 	

By:	

/s/  J.K. MATHENEY      

	 	 	Name:	J.K. Matheney

	 	 	Title:	Executive Vice President

	 	 	BANK OF AMERICA, N.A.,

as Administrative Agent, an L/C Issuer and a Lender
	

 	
 	

By:	

/s/  MICHAEL BALOK      

	 	 	Name:	Michael Balok

	 	 	Title:	Managing Director

	 	 	WACHOVIA BANK, N.A.,

as Syndication Agent and a Lender
	

 	
 	

By:	

/s/  CHRIS ABE      

	 	 	Name:	Chris Abe

	 	 	Title:	Manager

	 	 	ROYAL BANK OF CANADA,

as Documentation Agent and a Lender
	

 	
 	

By:	

/s/  SHAWN JANKO      

	 	 	Name:	Shawn Janko

	 	 	Title:	Vice President

	 	 	THE BANK OF NOVA SCOTIA,

as a Lender
	

 	
 	

By:	

/s/  PATRICK F. NORRIS      

	 	 	Name:	Patrick F. Norris

	 	 	Title:	Director

REPLACEMENT SCHEDULE 5.13

5.13(c) ERISA Compliance 

5.13(c)(i)

        On
May 8, 2002, the Company announced a program of facility sales and closures that to the extent implemented could result in a reduction under ERISA Section 4040(c)(3) of
more than 20 percent of the
active participants in 2002 or 2003, or more than 25 percent of the active participants in 2002 and 2003, in either or both of the Louisiana-Pacific Retirement Account Plan or the
ABTco Inc. Retirement Plan. 

        The
plan participant data currently available indicates that a reportable event has occurred as of September 13, 2002, with regard to the Louisiana-Pacific Corporation Retirement
Account Plan only, as a result of an active participant reduction of 20% in 2002 for that plan. Plan actuaries have determined that there is no waiver applicable to the PBGC Form 10 filing, and
LP plans to file the PBGC Form 10 within the thirty day period. The current and anticipated future levels of participant reductions may constitute a partial termination of either or both plans,
in which event the affected participants must under tax qualified plan law be vested to the extent their benefits are already funded. The Company has decided to fully vest the affected participants
who are not already vested, by Plan amendment, instead of incurring the substantial administrative expenses and uncertainties of a vesting to the extent funded determination. The value of the benefits
to be fully vested will not exceed $5,000,000.00. 

5.13(c)(ii)

        The
Company sponsors the Louisiana-Pacific Corporation Retirement Account Plan. Originally this was a defined benefit pension plan covering certain hourly employees of LP. Effective
January 1, 2000, this was converted to a cash balance plan covering most non-bargained employees. As of January 1, 2002, on an ongoing basis, the Plan has a surplus of
approximately $1,000,000. As of January 1, 2002, on a plan termination basis, the Plan has an unfunded liability of approximately $29,000,000. 

        The
Company sponsors the ABTco, Inc. Retirement Plan. This is a defined benefit plan covering bargained and non-bargained employees of ABTco. As of January 1,
2002, on an ongoing basis, the Plan has a surplus of approximately $1,000,000. As of January 1, 2002, on a plan termination basis, the Plan has an unfunded liability of approximately
$14,000,000. 

QuickLinks

Exhibit 10.1

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