A name change affidavit typically includes your current legal name, the new name you wish to adopt, and the reasons for your name change. You must provide proof of your name change, e.g.Go to the courthouse and fill out a form, showing your current name and the name you want, plus your reason for changing it. On a signature affidavit, the signer is confirming that the name he or she is signing with represents the complete, official form of the signer's name. A Notarized Affidavit is a written statement that is required if you are unable to provide the original document confirming facts of your application. Give the form to your local notary office and have them legally complete your affidavit of change name. You must complete the following documents: • Request for Judicial Intervention (RJI). In the sentence, the person writing the statement must state that he or she is stating that the information is accurate. Do I need to have my Affidavit of Name Change notarized? California Notaries must fill out an official name change form when changing their name on a Notary commission.