The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. THIS PURCHASE AND SALE AGREEMENT (this "Agreement") is made as of this ____ day of.Expert legal counsel ensuring foolproof purchase agreements. Trust our lawyers for precise, secure purchase agreement negotiation. Estimate your closing costs when selling a condo, co-op or townhouse in NYC. See how much you'll pay in transfer taxes, commissions and fees. A New York residential purchase agreement outlines the terms of a transaction between the buyer and the seller of a residential property. The contract should also stipulate evidence of title, property taxes, and any liens or judgments.