Wis. Stat. § 865.12: Employment of appraisers.

The personal representative may employ a qualified and disinterested appraiser to assist in ascertaining values of any assets where valuation is subject to reasonable doubt. The name and address of any appraiser so employed shall be indicated on the inventory with the item or items appraised by the appraiser, notwithstanding the omission from the inventory of the value thereof. Any interested person may invoke the jurisdiction of the court to require an appraisal or to contest said appraisals.