Bring this completed form and a voided or cancelled check or a bank letter of verification on its letterhead or a recent bank statement,. Include the full legal name of the authorized party and their relationship to the account holder.Account Holder Signature(s):. In order to make a bank authorization letter, it's important to empower someone with bank relates issues, for example in taking collecting or sign on documents. Start with the first section. Mention your name and a short description of who you are. Direct Deposit Authorization Form. TD Bank makes setting up direct deposit easy with this convenient, pre-filled form. Authorization letter for documents pick up - pcsmypov. Fill out this Authorization Form, attach a voided.