Ariz. Rev. Stat. § 14-5311
B. The court may consider the following persons for appointment as guardian in the following order:
D. Notwithstanding the priorities set forth in subsection B of this section, if the petition for appointment of a guardian for the incapacitated person is filed pursuant to section 14-5301.03 or within two years after the incapacitated person's eighteenth birthday, unless the court finds the appointment to be contrary to the incapacitated person's best interest:
F. For good cause the court may pass over a person who has priority and appoint a person who has a lower priority or no priority. For the purposes of this subsection, "good cause" includes a determination that: