Acknowledgement Sample Forms: I. Form for Ordinary Certificate of Acknowledgment. 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. To make the acknowledgment valid, it must include the words. "acknowledged before me. In a concise manner, mention and thank the individuals that provided educational, moral and financial support. This letter is to acknowledge that I am accepting the role as Engineer of Record for the foundation repair to be constructed at the above referenced address. A gift acknowledgment letter recognizes donors and can be used to claim tax deductions.