A commercial purchase agreement is a legal real estate contract that transfers commercial property ownership from a seller to a buyer. A unique application of customizable commercial real estate contract templates, including Purchase and Sale, Lease, and Listing agreements.An agreement to sell real estate, or a purchase agreement, is a legally enforceable document that specifies the terms of a real estate transaction. I want to show you how to do this simple contract there is a simple contract in transaction desk that you can use for a commercial deal. Buyer desires to purchase the Property and Seller has agreed to sell and convey the Property to Buyer, on the terms and conditions set forth below. We have our own 7-page contract for San Francisco that is usually updated every couple of years. Changes tend to be small and accumulate over time. Apply for PRLS License, Description of Business, Contract Approvals, List of Licensees. Licensee Alerts and Advisories. Secured Trust Escrow is a leader in providing escrow services for the purchase and sale of industrial properties.