Administration is the process where the Surrogate's Court officially gives out Letters of Administration to a qualified distributee (heir) of the Decedent. Learn how to set up an estate account so that you can manage the deceased person's finances according to their wishes.If submitting online, you must provide your Social Security number for verification. The title of the estate bank account should simply be "Estate of . . ." with the name of the deceased matching how it is shown on the Letters of Administration. What Documents Do I Need for a Letter of Administration? Customer: My wife died and I need to open an estate bank account in her name. Probate is the process of proving that the Will is valid (legally acceptable). During probate, the Will must be proved to the satisfaction of the Court. You can provide letters of testamentary or probate court documents to prove you have the authority to oversee the estate.