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 model contract is suitable for any straightforward sale of an existing commercial building or raw land.A commercial real estate sale begins when you, as a seller, sign an agreement with a broker and retain a real estate attorney. This form of purchase and sale agreement includes guidance for both purchasers and sellers in New York commercial real estate acquisition and sale transactions. See 5353 New York Commercial Real Estate listings for Sale. In a usual real estate transaction, the buyer and sellers' agents or attorneys would be the ones involved in creating the legal contracts.