The Affidavit of Authority to Assign Title (MVR-317) form is not available online and must be obtained from the. Clerk of Superior Court's office.What documents do you need? Making affidavit is simple and easy, Just follow below steps, Step 1: First and foremost, prepare draft affidavit in word format. If the out-of-state license is not available at time of transfer you must submit a driving record or verification from the other state with an Identity. These documents show that you have the privilege to drive in the state.