100 Dolorosa Room 123 San Antonio, TX 78205 Phone: 210-335-2678 Fax: 210-335-3998 Monday - Friday AM - 5: General Affidavits are written statements of fact used to support your case or verify facts that are sworn to be true in front of a notary public.Discover a stepbystep guide to creating a general affidavit with Bryan Fagan, PLLC. Understand the legal requirements. Customer: how do you file a general affidavit in bexar county? A general affidavit is a sworn statement made in writing, attesting to the authenticity of certain facts. State of Texas, County of Bexar.