Essentially, you have to contact the security department so they can verify your story and reassign the account to you. Expect it to take several days and you will need to fax them proof of identity and possibly proof of your father's death. Or, if your mother is still alive but she wants you to handle the taxes, she may need to give you a limited power of attorney for you to fax to the security department. You will have to contact them Monday and see what they want.
