Wis. Stat. § 70.83
If any person appointed or required to perform any duty under ss. 70.75 and 70.76 shall be unable or neglect to do so, that person's place may be filled by appointment by said department. If any person required to perform any duty under ss. 70.75 to 70.84 shall willfully neglect or refuse to do so, that person shall forfeit to the state not less than $50 nor more than $250. In the appointment of persons to perform services under ss. 70.75 to 70.84 the department of revenue shall not be required to select any of such persons from the residents of the district in which the reassessment is to be made. It shall not be necessary for the said department to wait until the assessment in any district is completed before making an order for reassessment therein under ss. 70.75 to 70.84; but it shall be entitled to make such order whenever it shall be satisfied from the work already done upon such assessment that when completed it will not be in substantial compliance with law.
Wis. Stat. § 70.83