To close a bank account on behalf of someone who has passed away, you must have legal authority to manage the account. Notify Bank of America.We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. Most banks will have their own individual procedure for closing a bank account after the title holder of the account passes away. Navigate Broward County probate administration with ease. An Affidavit of this nature allows a bank or credit union in Florida to pay a qualified family member the funds in the decedent's bank accounts. Enter the 6 letters or numbers shown within the image above. Letters are not case-sensitive.