EXHIBIT 10.7 DIVERSIFIED INVESTMENTS PORTFOLIO THIRD AMENDMENT TO PURCHASE AND SALE AGREEMENT THIS THIRD AMENDMENT TO PURCHASE AND SALE AGREEMENT (this "Amendment") is made and entered into as of the 22nd day of January, 2004, by and among MHC OPERATING LIMITED PARTNERSHIP (together with its affiliates, designees and assigns, the "Purchaser"), an Illinois limited partnership having an address of Two North Riverside Plaza, Suite 800, Chicago, Illinois 60606, DIVERSIFIED INVESTMENTS SERVICES, LLC ("Diversified"), a Delaware limited liability company having an address of 7625 Wisconsin Avenue, Suite 150, Bethesda, Maryland 20814, and the Sellers, each having an address of c/o Diversified Investments Services, LLC, 7625 Wisconsin Avenue, Suite 150, Bethesda, Maryland 20814. R E C I T A L S: A. The parties hereto have entered into that certain Purchase and Sale Agreement dated as of December 8, 2003, as amended by that certain First Amendment to Purchase and Sale Agreement dated December 23, 2003 and further amended by that certain Second Amendment to Purchase and Sale Agreement dated January 21, 2004 (collectively, the "Purchase Agreement"). Capitalized terms used but not otherwise defined herein shall have the meanings set forth in the Purchase Agreement. B. The parties hereto desire to amend the Purchase Agreement as hereinafter provided. THEREFORE, the parties hereto agree to amend the Purchase Agreement as follows: A G R E E M E N T: 1. INSPECTION PERIOD. Notwithstanding anything to the contrary contained in the Purchase Agreement, the Inspection Period as provided in Section 9A of the Purchase Agreement and amended by the Second Amendment to Purchase and Sale Agreement shall be extended through 5:00 p.m. (Chicago, Illinois time) on January 23, 2004. 2. EFFECT. Except as amended herein, all terms and provisions contained in the Purchase Agreement shall remain in full force and effect. 3. COUNTERPARTS. This Amendment may be executed in one or more counterparts, all of which taken together shall constitute one and the same agreement. [SIGNATURE PAGES FOLLOW] 1 IN WITNESS WHEREOF, the parties have executed this Amendment as of the respective dates set forth below. WITNESSES: PURCHASER: __________________________________ MHC OPERATING PARTNERSHIP, Name:_____________________________ an Illinois limited partnership __________________________________ Name:_____________________________ By: MANUFACTURED HOME COMMUNITIES, INC., a Maryland corporation, its general partner By:__________________________________ Name:_____________________________ Title:____________________________ Date: January ___, 2004 2 WITNESSES: SELLERS: __________________________________ COACHWOOD COLONY MHP, LLC, a Florida Name:_____________________________ limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - COACHWOOD COLONY MHP, LLC, a Florida limited liability company, as its Sole and Managing Member By: _________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - COACHWOOD COLONY MHP, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: __________________________________ __________________________________ Barry L. Haase Name:_____________________________ Manager WITNESSES: SHANGRI-LA MOBILE HOME PARK, L.P., a Delaware limited partnership, authorized to transact business in the State of Florida as SHANGRI-LA MOBILE HOME PARK OF LARGO, LTD. __________________________________ By: DIVERSIFIED INVESTMENTS - SHANGRI-LA, Name:_____________________________ INC., a Delaware corporation, as its __________________________________ General Partner Name:_____________________________ By: _________________________________ Barry L. Haase Chairman 3 WITNESSES: DIVERSIFIED INVESTMENTS - SHANGRI-LA, INC., a Delaware corporation __________________________________ Name:_____________________________ By: ________________________________ __________________________________ Barry L. Haase Name:_____________________________ Chairman WITNESSES: TAMPA BAY COMMUNITIES, L.P., a Florida limited partnership __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - TBC, INC., __________________________________ a Florida corporation, as its Name:_____________________________ General Partner By: _________________________ Barry L. Haase CEO WITNESSES: SIXTH AVENUE, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - SIXTH __________________________________ AVENUE LLC, a Florida limited Name:_____________________________ liability company, as its Sole and Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - SIXTH AVENUE, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: ________________________________ __________________________________ Barry L. Haase Name:_____________________________ Manager 4 WITNESSES: SOUTHERNAIRE MHP, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - __________________________________ SOUTHERNAIRE, LLC, a Florida limited Name:_____________________________ liability company, as its Sole and Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - SOUTHERNAIRE, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By:_______________________________ __________________________________ Barry L. Haase Name:_____________________________ Manager WITNESSES: TERRA CEIA, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - TERRA CEIA, __________________________________ LLC, a Florida limited liability Name:_____________________________ company, as its Sole and Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - TERRA CEIA, __________________________________ LLC, a Florida limited liability company Name:_____________________________ __________________________________ By: ________________________________ Name:_____________________________ Barry L. Haase Manager 5 WITNESSES: TOPICS RVP, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - TOPICS __________________________________ RVP, LLC, a Florida limited liability Name:_____________________________ company, as its Sole and Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - TOPICS RVP, LLC, a Florida limited liability company __________________________________ Name:_____________________________ By: __________________________________ __________________________________ Barry L. Haase Name:_____________________________ Manager WITNESSES: GOOSE CK, LLC, a North Carolina limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - GC, LLC, a __________________________________ North Carolina limited liability Name:_____________________________ company, as its Sole Member By: EAST WEST COMMUNITIES, LLC, a Delaware limited liability company, as its Sole Member By: DIVERSIFIED INVESTMENTS - EW, LLC, a Delaware limited liability company, as its Managing Member By:__________________________ Barry L. Haase Managing Member 6 WITNESSES: DIVERSIFIED INVESTMENTS - GC, LLC, a North Carolina limited liability company __________________________________ Name:_____________________________ By: EAST WEST COMMUNITIES, LLC, a __________________________________ Delaware limited liability company, Name:_____________________________ as its Sole Member By: DIVERSIFIED INVESTMENTS - EW, LLC, a Delaware limited liability company, as its Managing Member By: ___________________________ Barry L. Haase Managing Member WITNESSES: WATERWAY RV, LLC, a Delaware limited liability company __________________________________ Name:_____________________________ By: SIERRA LAKES, L.L.C., a Delaware __________________________________ limited liability company, as its Name:_____________________________ Sole and Managing Member By: DIVERSIFIED INVESTMENTS PARTNERS, LLC, a Delaware limited liability company, as its Managing Member By:______________________________ Barry L. Haase Managing Member WITNESSES: SIERRA LAKES, L.L.C., a Delaware limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS PARTNERS, __________________________________ LLC, a Delaware limited liability Name:_____________________________ company, as its Managing Member By: _______________________________ Barry L. Haase Managing Member 7 WITNESSES: CACTUS GARDENS RV, LLC, an Arizona limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - CACTUS __________________________________ GARDENS, LLC, an Arizona limited Name:_____________________________ liability company, as its Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - CACTUS GARDENS, LLC, an Arizona limited liability company __________________________________ Name:_____________________________ By: __________________________________ __________________________________ Barry L. Haase Name:_____________________________ Manager WITNESSES: DESERT PARADISE RV, LLC, an Arizona limited liability company __________________________________ Name:_____________________________ By: SIERRA LAKES, L.L.C., a Delaware __________________________________ limited liability company, as its Name:_____________________________ Sole and Managing Member By: DIVERSIFIED INVESTMENTS PARTNERS, LLC, a Delaware limited liability company, as its Managing Member By:______________________________ Barry L. Haase Managing Member 8 WITNESSES: SUNI SANDS, LLC, an Arizona limited liability company __________________________________ Name:_____________________________ By: DIVERSIFIED INVESTMENTS - SUNI SANDS, __________________________________ LLC, an Arizona limited liability Name:_____________________________ company, as its Sole and Managing Member By: ________________________________ Barry L. Haase Manager WITNESSES: DIVERSIFIED INVESTMENTS - SUNI SANDS, LLC, an Arizona limited liability company __________________________________ By: ___________________________________ Name:_____________________________ Barry L. Haase __________________________________ Manager Name:_____________________________ WITNESSES: DIVERSIFIED INVESTMENTS SERVICES, LLC, a Delaware limited liability company __________________________________ Name:_____________________________ By: __________________________________ __________________________________ Name: Barry L. Haase Name:_____________________________ Title: Manager 9