ASSIGNMENT OF CONTRACT

ASSIGNMENT OF CONTRACT

THIS ASSIGNMENT OF CONTRACT (the “Assignment”) is made as of the 11^th day of May, 2007 by Triple Net Properties, LLC, a Virginia limited liability company (“Assignor”) to NNN Healthcare/Office REIT Thunderbird Medical, LLC (the “Assignee”).

RECITALS

Assignor and 5410 & 5422 W. Thunderbird Road, LLC, an Arizona limited liability company, PEA Enterprises, LLC, a California limited liability company, 5310 West Thunderbird Road, LLC, an Arizona limited liability company, WRM T-Bird, LLC, a Delaware limited liability company, EDI T-Bird, LLC, a Delaware limited liability company, PVP T-Bird, LLC, a Delaware limited liability company, Courtleigh T-Bird, LLC, a Delaware limited liability company, Mongan T-Bird, LLC, a Delaware limited liability company, Booth T-Bird, LLC, a Delaware limited liability company, Gertmenian T-Bird, LLC, a Delaware limited liability company, and Bland T-Bird, LLC, a Delaware limited liability company (collectively the “Seller”), entered into that certain Sale Agreement and Escrow Instructions, dated as of April 6, 2007 (the “Contract”) with respect to certain property known as Thunderbird Medical Plaza I, II & III, as more particularly described in the Contract. Assignor desires to assign all of its rights, title and interest in and to the Contract to Assignee.

AGREEMENT

FOR and in consideration of the premises and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Assignor hereby assigns all of its rights, title and interest in and to the Contract to Assignee.

Assignee by its execution of this Assignment hereby assumes all of Assignor’s obligations under the Contract.

WITNESS the following signatures:

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#1270022 v1 021255.04971

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