You may fill out the change of address form or simply make the request in writing. Upon release from escrow under this.Furnish the information requested in Section 23 below; b. Secure your San Antonio small business's transactions today! Our asset purchase agreements from Dan Burke are created to account for all of your assets. For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance. An asset purchase agreement (or APA) is a binding document between a buyer and seller for the purchase and sale of a company's assets.