Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts.A party then files a petition for probate which allows distribution of the decedent's assets. Guardianships are filed for both minors and incapacitated persons. Please note: For all account types, we require a death certificate. How Can I Access a Deceased Person's Bank Account? If the relative was deceased at the time of the decedent's death, please provide the deceased relative's name, indicate deceased, and date of death.