This agreement is contingent upon Purchaser obtaining approval of a. Conventional,. The closing ("Closing") of the sale of the Properties from Seller to.Purchaser and Purchaser to Seller shall be completed as promptly as possible but in no. CONTRACT OF SALE – OFFICE, COMMERCIAL AND MULTI-FAMILY RESIDENTIAL. PREMISES. A New York commercial real estate purchase and sale agreement is a contract between a buyer and seller used to transfer ownership of commercial property. This template is a purchase and sale agreement for a New York commercial property. This template includes practical guidance and drafting notes. The business bill of sale template is an effective guide that walks you through the steps needed to complete the transaction.