A.R.S. § 6-237

If the deposit account is with one person and if within sixty days from the date of death of such depositor, no personal representative of such decedent, qualified in this state, has delivered a certified copy of letters testamentary or letters of administration to the bank, the bank may pay the balance of the account of the deceased depositor to the depositor's domiciliary personal representative qualified in another state upon the presentation of letters testamentary or letters of administration certified by the appointing court.