This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. In most states, the general rule is that certificates must comply substantially with the requirements found within their statutes.To become a California notary, you must first take a California notary course. New notaries in California must take a six-hour notary training course. What are the requirements to become a notary public? Eligibility Requirements. Age and Residency Criteria; Background Checks ; Application Process. Loan signing agents are mobile Notaries that help with mortgage closings. Prepare your document. The stamp should also include the name of the notary public, the notary public's commission expiration date, and their commission number.