Focus on three things: State your intentions, show that you have the financial means to make the purchase and make a personal appeal to the seller. An Offer to Purchase Real Estate sets out the terms of a proposed real estate deal.Create yours now with our free form. Statement of Interest: Explicitly express your interest in the property. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Texas Comptroller Property Tax Publications click here. In order to be timely, payment of taxes must be postmarked on or before January 31st. Under Business Personal Property Forms, select Personal Property Rendition. How do I fill out the rendition form? Application Process - Starting Out.