The document will need to include the date and location where the notary witnessed the signature and verified the signer's identity. An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries.Here are 5 steps to performing an acknowledgment. The forms of acknowledgment set forth in this section may be used and are sufficient for their respective purposes under any law of the Commonwealth. Your state laws provide sample wording for acknowledgment certificates. - SAMPLE ACKNOWLEDGEMENTS ………………….. Page 12. To make the acknowledgment valid, it must include the words. "acknowledged before me. A Virginia notary acknowledgment form verifies signatures on official documents, including lease agreements, affidavits, and consent forms.