Complete Affidavit and sign in the presence of a Notary Public. Each individual owner must complete and submit an affidavit.• You must sign the affidavit in the presence of a notary and a witness. Download the FL DMV Address Certification Form. Get a mobile notary to assist today! When filling out the form, the certifier also needs to provide two documents proving their address. Bring identification such as your driver's license or passport so the notary can verify you are the person named in the affidavit.