When real estate offered for sale on execution consists of several lots, tracts or parcels they shall be separately offered for sale; and if any person claiming to be the owner of any of such lots or parcels or an interest or estate therein or claiming to be entitled to redeem the same shall require it to be offered for sale separately, the sheriff shall offer the same for sale accordingly. No more shall be sold than shall appear necessary to satisfy the execution.
Wis. Stat. § 815.33