3) Attach a bank reference letter. Two authorized signatures required.Contact your bank for a power of attorney form. The Transfer on Death Letter of Authorization enables distribution of a decedent's account holdings upon death. Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. If you're setting up a power of attorney for real estate transactions, you'll need to get your POA notarized. For example, are you a joint owner of the account? Or attach a letter from your financial institution with this request.