No. 'We are in receipt' is a wrong usage. You can choose to acknowledge the receipt of something, but you cannot be in receipt of something.I can confirm that we have received your email, and I wanted to acknowledge receipt. Thank you for sending me the (invoice, report, etc.). Download a notary acknowledgment form in PDF or Word format. A Washington notary acknowledgment form is used to officially authenticate a signature on a legal document. Here are the basic steps to create an acknowledgement receipt: Use a company letterhead. Give the receipt a title. For an acknowledgment in a representative capacity: State of Washington. We encourage you to seek advising in Career and Professional Development if you need assistance handling offers or making a decision.