Wis. Stat. § 707.25: Use for sales purposes.

(1) Except as provided in sub. (2), a developer may maintain sales offices, management offices and models in the time-share property only if the time-share instrument so provides and specifies the rights of a developer with regard to the number, size, location and relocation of the offices. The developer may maintain signs on the time-share property advertising the time-share property.

(2) A developer’s authority under sub. (1) is subject to restrictions in ordinances and the project instrument.