Hotline Question: What does an acknowledgment certify and how do I complete the notarization with an acknowledgment certificate? An acknowledgment is one of the most common notarial acts. It requires the Notary to certify that the signer: *personally appeared before the Notary *proved his/her identity as the signer *acknowledged that he or she signed the document willingly When completing an acknowledgment certificate, the Notary essentially verifies that those things happened. Take a look at th