Per a new state law, Tarrant Appraisal District is sending homeowners letters asking them to confirm their homestead exemption. An Acknowledgment of Paternity (AOP) is a legal document that allows parents who aren't married to establish legal paternity.We provide authorized access to patients' medical record information. We also provide general assistance in answering questions about medical record privacy. Acknowledgments. Upon acceptance, the form will be stamped with the name of the filing officer, date and hour of filing and a consecutive file number. Create your acknowledgment letter template. Use an LGL letter template; Use a Microsoft Word letter template. The prescribed forms are available in fill-in-the-blank format on this web site at UCC Forms. The letter, which will be sent to. This form is used as proof to the court that a custodial or noncustodial parent is in the military.