This is to notify the bank that my. (Relationship with deceased).Decedent must have been a resident of Middlesex County when they died. Certified death certificate for the decedent. Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format. When it comes to handling the decedent's bank accounts, we're here to make the process as simple and straightforward as possible. Sample Letter – Asking for a debt write-off when someone is deceased. If you're erroneously declared dead, you can't borrow money or get insurance, and your bank accounts may get frozen and credit cards canceled. Notify Bank of America.