Wis. Stat. § 707.20: Time shares in projects.

(1) If all of the documents constituting a project instrument are recorded after June 1, 1988, time shares may not be created in any unit in the project unless expressly permitted by the project instrument, including an amendment to the project instrument under sub. (2).

(2) An amendment to a project instrument adopted under s. 707.39 (5) or (6) which is recorded after June 1, 1988, may not permit the creation of time shares unless the owner of each unit in the project, and the record owners of liens on each unit in the project, consent to the amendment.