Your name must be your legal first, middle and last name. You may not alter your last name in any way.In California, Notaries are not allowed to correct certificates after the signer has left their presence. This article will shed light on the specifics of a California affidavit template, a vital tool that can simplify your legal journey. How do I fill this out? View a list of the available Notary Public forms available from the California Secretary of State's office here. Include your full name, address, age, occupation, and other identifying information. 6. Signing the affidavit. California Notaries must fill out an official name change form when changing their name on a Notary commission. Take a look at our online California notary resources for a list of forms, common notary questions, notary codes and additional information.