ACKNOWLEDGEMENTS. Acknowledgement taken in New York State. On the______day of ______, in the year_________, before me, the undersigned, personally appeared.Fill out, sign, and affix your official seal to the Notary certificate. The wording requirements for acknowledgment certificates vary from state to state. This 5-step guide will teach you how to notarize a document that requires an acknowledgement (the most common notarial act). Forms ; Summons extra caption. PDF ; Complaint sample. To make the acknowledgment valid, it must include the words. "acknowledged before me. Acknowledgment Letter.