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. A commercial real estate purchase agreement is a legal contract between the buyer and seller of a commercial property.A commercial real estate purchase agreement allows a seller and a buyer to make a deal that transfers ownership of commercial property. Discover why successful commercial real estate investors use a letter of intent when first making an offer on commercial real estate and how you can too! We've included a lengthy, typical NYC real estate purchase contract geared towards new development for your review below. Commercial real estate transactions are typically more complex than residential real estate transactions and in almost every case a lawyer should be involved. Is there a way without using personal name?