This model contract is suitable for any straightforward sale of an existing commercial building or raw land. 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. The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. An attorney's explanation of an Office Purchase and Sales Agreement and its free template for commercial real estate. 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! Use a commercial real estate purchase agreement to secure transactions and protect your interests effectively. We've included a lengthy, typical NYC real estate purchase contract geared towards new development for your review below.