Complete this affidavit and bring to an RMV Service Center with Certificate of Title and other required documents. A. Vehicle Information.In an affidavit you swear that everything you say is true. In the blank for ______ DIVISION, put the county for the court where you are filing this affidavit. On this ______ day of ______, 20____, I certify that the (preceding) (following). I,. , being in the city town of. , in the Commonwealth of Massachusetts, a witness, sign my name to this instrument this day of. Do I fill the Affidavit of Identity out before going to a notary? This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. General affidavit form for use within Massachusetts.