For information on values, to file for an exemption, or to report changes in ownership or address, please call the Appraisal District at 210-224-2432. The Instruction Guide explains how to complete this form.Northwest Democrats of Bexar County PAC. The forms listed below are PDF files. They include graphics, fillable form fields, scripts and functionality that work best with the free Adobe Reader. You should file Form 50-162, Appointment of Agent for Property Tax Matters (PDF) if you elect to designate someone to represent you at the protest hearing. A complete list of forms can be found at the bottom of this page. Please read the instructions below to ensure that you select the correct form. Our new Online Forms are now available. You may now use the forms portal to complete your application online and monitor the progress.