Unimproved Property Contract. Use the full legal names of the buyer and seller.Texas Association of Realtors Listing Agreement Exclusive Right to Sell (TAR1101). This is the correct form. No information is available for this page. This is a video from Texas Grand Realty on how to create an Unimproved Property Contract from the North Texas Real Estate Information System, It's going to be all MLS and zip forms and also a little bit of loading the transaction.