EXHIBIT 99.4 [Beacon Capital Partners, Inc. letterhead] December 1, 1999 BY CERTIFIED MAIL AND COURIER The Charles Stark Draper Laboratory, Inc. 555 Technology Square Cambridge, MA 02139 Attention: Mr. David C. Driscoll Re: 555 TECHNOLOGY SQUARE,...Fourth Amendment and Restatement of Lease • December 7th, 1999 • Beacon Capital Partners Inc • Real estate investment trusts
This is with reference to that certain Fourth Amendment and Restatement of Lease dated as of July 1, 1981, as amended (the "Lease"), the present parties to which are Technology Square LLC, a Delaware limited liability company ("Landlord"), and The Charles Stark Draper Laboratory, Inc., a Massachusetts corporation ("Tenant").
