This application is for the benefit of Paxton Hardwoods LLC ("Paxton"), and any of its affiliates or subsidiaries; such parties are authorized to contact. A Texas residential purchase agreement outlines the terms and conditions of an offer to purchase real estate.Address: 100 W. Houston Street, Suite 1250,. 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. In today's video I'm going to go over actually how to fill out a purchase and sale agreement. A sales agreement is used to describe and track the exact details of quantity and cost of purchasing or selling goods, services, or real estate. Purchase and sale agreements are important documents that outline the details of a real estate transaction between buyer and seller.