The following persons may petition a court to construe a power of attorney or review the agent’s conduct, and grant appropriate relief: The principal or the agent; A guardian, conservator, or other fiduciary acting for the principal; A person authorized to make health care decisions for the principal; The principal’s spouse, parent, or descendant; An individual who would qualify as a presumptive heir of the principal; 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; A governmental agency having regulatory authority to protect the welfare of the principal; The principal’s caregiver or another person that demonstrates sufficient interest in the principal’s welfare; and A person asked to accept the power of attorney. On 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.