Unless the terms of the will otherwise provide, every power exercisable by personal co-representatives may be exercised by the one or more remaining after the appointment of one or more is terminated, and if one of two or more nominated as co-personal representatives is not appointed, those appointed may exercise all the powers incident to the office.
Powers of surviving personal representative
A.R.S. § 14-3718 — under Duties and Powers of Personal Representatives.
A.R.S. § 14-3718