A Texas residential purchase agreement outlines the terms and conditions of an offer to purchase real estate. This is a statement from the bank that shows that the buyer can obtain financing under their current financial status.Seller agrees to sell and convey to Buyer and Buyer agrees to buy from Seller the Property defined below. 2. This agreement is for the purchase of a property located in Bexar County, Texas. A Texas purchase agreement solidifies the terms of sale for a residential property. Download our free blank purchase agreement template in Word or PDF format: sample real estate purchase agreement template.