Exhibit 10.21

 

FIRST AMENDMENT OF PURCHASE

AND SALE AGREEMENT

 

First Amendment of Purchase and Sale Agreement (this “Amendment”), made and
entered into this I7th day of February, 2006, by and between General America
Corporation, a Washington corporation (“Seller”) and Microsoft Corporation, a
Washington corporation (“Purchaser”).

 

RECITALS

 

A. Seller and Purchaser are the parties to that certain Purchase and Sale
Agreement and Joint Escrow Instructions effective as of January 13, 2006 (the
“Agreement”).

 

B. The parties desire to extend the “Inspection Period” as defined in the
Agreement.

 

AGREEMENTS

 

1. Extension of Inspection Period. The first sentence of Section 5.1 (a) of the
Agreement is hereby amended by deleting the words “the date that is thirty (30)
days after the Effective Date” and substituting the words “February 17th, 2006”.

 

2. No Other Amendments. Except as expressly amended by this Amendment, the
Agreement remains unmodified and in full force and effect.

 

SELLER: GENERAL AMERICA CORPORATION, a Washington corporation By  

/s/ Stephanie Daley-Watson

--------------------------------------------------------------------------------

Its   Vice President & Secretary PURCHASER:

MICROSOFT CORPORATION, a

Washington corporation

By  

/s/ James Ableson

--------------------------------------------------------------------------------

Its   Director, Real Estate & Facilities