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. Sample Donor Acknowledgement Letter for Cash Donation. The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. In the "Name" section type your full name. Acknowledge that the gift is a memorial donation. (Signature of Person Taking Acknowledgment). We recommend you complete an Annual Student Loan Acknowledgment each year you accept a new federal student loan.