Ariz. Rev. Stat. § 12-3405
A. If the court determines that the property that is the subject of a partition action is heirs property, the court shall determine the fair market value of the heirs property by ordering an appraisal pursuant to subsection B of this section, unless one of the following applies:
B. If the court orders an appraisal, the court shall appoint a disinterested real estate appraiser licensed in this state to determine the fair market value of the property assuming sole ownership of the fee simple estate. On completion of the appraisal, the appraiser shall file a sworn or verified appraisal with the court. If an appraisal is conducted pursuant to this subsection, the court shall provide notice of the appraisal to each party with a known address not later than ten days after the appraisal is filed. The notice shall include all of the following: