Legal Question in Wills and Trusts in Illinois

Call an attorney in your area.

It may not be necessary to have an attorney if the situation is uncomplicated. Go into the bank and find out what they require. If your father had named a beneficiary on the account, the bank has procedures they can ask you to follow. If there is less than $100,000 in the account, the account balance can be claimed on behalf of the heirs (if there was no will) or beneficiaries (if there was a will) of your father's estate through use of a "small estate affidavit". Figure out whether your father left a will and talk to the bank if it appears the bank account is the only significant asset in the estate, otherwise, call a lawyer.