For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance. Need to file a mechanics lien in Bexar County?Find everything you need to file your lien with the Bexar County Clerk here. Cynthia M. Munoz, Raymond P. Mauldin,. Ozone pollution forms when specific chemicals react in the atmosphere with sunlight. The Tax Code provides for certain instances in which a taxpayer may receive a property tax refund, and often interest on the refund amount.