In this article, we discuss how to write a letter with two signatures and provide an example letter for you to use as a reference. Download a proof of residency letter template for family members, notarized or non-notarized, tailored for legal use.Are both my stamp and my signature required for a notarial act? Yes. However, you also need to complete the notarial wording. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. 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. Sample forms and checklists for attorneys. It's easy to get started with these templated resources. Many forms require signatures from a Notary Public or a DMV representative to be valid.