Estates. If you are inquiring as to whether a decedent has an existing probate case, please contact customer service at (602) 37-CLERK, or (602) 372-5375. The bank most likely will require the.Estate's taxpayer identification number and a certified copy of your Letters of. INSTRUCTIONS: Complete Lists A-F first, then enter the total from each list on this summary. Then, you would be able to take a copy of the death certificate and your affidavit to the bank to access the account. You may use the forms and instructions in this packet if . . . INSTRUCTIONS: Complete Lists A-F first, then enter the total from each list on this summary. I called the maricopa county office and she said I just needed to go on their website and figure it out and I'm so lost.