A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. Write a comprehensive Texas residential purchase agreement to streamline your property transaction.Download a template here. A Texas residential purchase agreement outlines the terms and conditions of an offer to purchase real estate. Are you looking for a loan agreement form in Texas? Download our free Texas Loan Agreement Form which is available as PDF or Word documents. The Texas real estate form is the formal document that mentions the demands both parties have in the process of buying a piece of real estate. PARTIES: The parties to this contract are. (Seller) and. (Buyer).