How a Guardian Gets Replaced
A guardian is not permanent. Any person interested in the ward's welfare, including the ward, can petition the court to substitute the guardian with someone new. The court's standard is straightforward: substitution must be in the ward's best interest. The judge does not need to find that the current guardian did anything wrong.
On petition of the ward or any person interested in the ward's welfare, or on the court's own initiative, the court shall substitute a guardian and appoint a successor if it is in the best interest of the ward. The court does not need to find that the guardian acted inappropriately to find that the substitution is in the ward's best interest.
A.R.S. § 14-5307(A)If the ward is at least fourteen years old and has sufficient mental capacity, the court may appoint someone the ward nominates. A guardian can also petition to resign, and the court may accept the resignation and make appropriate orders for transition.
The Ward's Right to Challenge the Guardianship
Arizona provides strong protections for the ward's voice. The ward can petition to end the guardianship entirely by asking the court to find they are no longer incapacitated. This request can be made by informal letter to the court or judge. Anyone who knowingly interferes with the delivery of that letter may be held in contempt of court.
The ward may petition the court for an order that the ward is no longer incapacitated or petition for substitution of the guardian at any time. A request for this order may be made by informal letter to the court or judge.
A.R.S. § 14-5307(B)Other interested parties face timing restrictions. They generally cannot file a petition to substitute the guardian or terminate the incapacity finding within the first year unless the court permits it based on affidavits showing good cause. These safeguards balance stability with accountability, ensuring that guardianship orders can be revisited when circumstances change.

