Wis. Stat. § 54.22: Petition for authority to sell, mortgage, pledge, lease, or exchange ward’s property.

Notwithstanding s. 54.20 (3) (g), (h), and (i), a person interested in the estate of a ward may petition the court to require the guardian to sell, mortgage, pledge, lease, or exchange any asset of the estate of the ward. Following the petition and upon any notice and hearing that the court requires, the court may so order, subject to ch. 786, for the purpose of paying the ward’s debts, providing for the ward’s care, maintenance, and education and the care, maintenance, and education of the ward’s dependents, investing the proceeds, or for any other purpose that is in the best interest of the ward.