You will also need to provide a certified copy of the death certificate. A revocable trust can be ended relatively easily, in just three steps.The trust's founder and owner can typically dissolve a revocable trust at will. An Affidavit of Death is used to close accounts, receive benefits, or take ownership of property, real estate, or securities. You will need to become the estate's administrator or executor to gain access or information to the deceased person's bank account. First, the brokerage firm will request a variety of documents. Below are the common documents needed to close or change accounts. Death Certificate is required to remove the deceased customer from the account. Trust. Accounts with arrangements to hold the assets in a trust. With these documents, an Executor can pay off debts and taxes the estate may owe, and access and close out accounts the decedent owned.