If the subtenant violates the sub-rent, the original tenant is liable. To save time and make sure everything is filled out correctly, we advise you to use our free Wisconsin Sublease Agreement Builder or read our steps to write a Wisconsin rental agreement below. A sublet agreement in Wisconsin allows a tenant (“subtenant”) under a fixed-term lease agreement to rent the same property for payment to another person (“subtenant”). This type of rental is common on campus and in urban areas, as it allows roommates or someone to take up space, while a person may be out of the area for a short time. No, a tenant cannot sublet without the landlord`s permission or if the original lease prohibits it.