Ariz. Rev. Stat. § 14-5312
A. A guardian of an incapacitated person has the same powers, rights and duties respecting the guardian's ward that a parent has respecting the parent's unemancipated minor child, except that a guardian is not liable to third persons for acts of the ward solely by reason of the guardianship. In particular, and without qualifying the foregoing, a guardian has the following powers and duties, except as modified by order of the court:
4. If no conservator for the estate of the ward has been appointed, the guardian may:
13. The guardian of an incapacitated adult who has a developmental disability as defined in section 36-551 shall seek services that are in the best interest of the ward, taking into consideration: