All communications hereunder shall be in writing and effective only upon receipt and (i) if sent to the Purchaser, will be mailed, hand delivered, couriered or sent by electronic transmission to it at 200 West Street, New York, New York 10282, to the attention of Leah Nivison, email: leah.nivison@gs.com, with copies to: Joe Osborne, email: joe.osborne@gs.com, (ii) if sent to the Seller, will be mailed, hand delivered, couriered or sent by facsimile transmission or electronic mail and confirmed to it at Goldman Sachs Mortgage Company, 200 West Street, New York, New York 10282, to the attention of Leah Nivison, email: leah.nivison@gs.com, with copies to: Joe Osborne, email: joe.osborne@gs.com, and (iii) in the case of any of the preceding parties, such other address as may hereafter be furnished to the other party in writing by such parties.