Utah Code § 75A-2-116: Judicial relief.

(1) The following persons may petition a court to construe a power of attorney or review the agent's conduct and grant appropriate relief:

(a) the principal or the agent;

(b) a guardian, conservator, or other fiduciary acting for the principal;

(c) a person authorized to make health care decisions for the principal;

(d) the principal's spouse, parent as defined in Section 75-1-201, or descendant;

(e) an individual who would qualify as a presumptive heir of the principal;

(f) a person named as a beneficiary to receive any property, benefit, or contractual right on the principal's death or as a beneficiary of a trust created by or for the principal that has a financial interest in the principal's estate;

(g) a governmental agency having regulatory authority to protect the welfare of the principal;

(h) the principal's caregiver or another person that demonstrates sufficient interest in the principal's welfare; and

(i) a person asked to accept the power of attorney.

(2) Upon motion by the principal, the court shall dismiss a petition filed under this section, unless the court finds that the principal lacks capacity to revoke the agent's authority or the power of attorney.