A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. I'm gonna break down all the terms and conditions so you can understand what it means and we're gonna fill that out so you can have a real-life example of it.Free Real Estate Purchase Agreement. Answer a few simple questions. How to fill out the Texas Wholesale Purchase Agreement Contract PDF? Download and print a customizable sales agreement for free. Perfect for family services, real estate, and leases. Use this free customizable owner financing contract template to confirm financing between the owner selling a home and a buyer purchasing it.