Following Board action, LCRA staff will prepare standard contract forms incorporating the changes. PARTIES: The parties to this contract are.(Seller) and. (Buyer). To fill out the paper form, use a black or blue ballpoint pen. The following information is needed to complete your application: Address; Legal description of the property from Travis Central Appraisal District (TCAD). How to fill out the Irrigation Distribution System Installation Agreement? 1. Gather legal descriptions of your property. 2.