Willmar, Minn., Code of Ordinances ch. 6.5, art. II § 6.5-71

(a) Repairs and other corrective action.
(1) Whenever an owner, operator, or agent of a dwelling, dwelling unit, rooming unit, dormitory or dormitory room fails, neglects or refuses to make such repairs or other corrective action called for by the order or notice of violation issued pursuant to section 6.5-70 (a), the appropriate authority may undertake such repairs or action, when in its judgment a failure to make them will endanger the public health, safety or welfare, and the cost of such repairs and action will not exceed 50 percent of the fair market of the structure to be repaired.
(2) Notice of the intention to make such repairs or take other corrective action shall be served upon the owner, operator, or agent pursuant to section 6.5-70 ; or upon the appropriate authority as designated agent for service pursuant to section 6.5-69 (g); or upon the resident agent of the owner, as designated agent for service pursuant to section 6.5-69 (h).
(3) Every owner, operator, or agent of a dwelling, dwelling unit, rooming unit, dormitory or dormitory room who has received notice of the intention of the approved authority to make repairs or take other corrective action shall give entry and free access to the agent of the appropriate authority for the purpose of making such repairs. Any owner, operator, or agent of a dwelling, dwelling unit, rooming unit, dormitory or dormitory room who refuses, impedes, interferes with or hinders or obstructs entry by such agent pursuant to a notice of intention to make repairs or take other corrective action shall be subject to a civil penalty pursuant to the schedule included in the systematic housing inspection plan adopted by the appropriate authority for each such failure to comply with this section.
(4) When repairs are made or other corrective action taken at the discretion of the appropriate authority, cost of such repairs and corrective action shall constitute a debt in favor of this city against the owner of the repaired structure. In the event such owner fails, neglects or refuses to pay the city the amount of this debt, it shall be recoverable in a civil action against the owner or his successor, brought in a court of competent jurisdiction by the city which shall possess all rights of a private creditor.
(b) Designation of unfit dwellings, dwelling units, roominghouses, rooming units, dormitories and dormitory rooms.
(1) Any dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room shall be designated as unfit for human habitation when any of the following defects or conditions are found, and when, in the judgment of the appropriate authority, such defect creates a hazard to the health, safety or welfare of the occupants or of the public:
a. Such establishment is damaged, decayed, dilapidated, unsanitary, unsafe, and/or vermin-infested and/or contains hazardous levels of lead-based paint or other substance.
b. Such establishment lacks illumination, ventilation and/or required sanitation facilities.
c. The general condition of location is unsanitary, unsafe and/or unhealthful.
(2) Whenever any dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room has been designated as unfit for human habitation, the appropriate authority shall placard the dwelling, dwelling unit, rooming unit, dormitory or dormitory room, indicating that it is unfit for human habitation, and, if occupied, shall order such dwelling, dwelling unit, or rooming unit vacated within a reasonable time.
(3) Whenever any dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room has been placarded and vacated the appropriate authority shall order services and utilities to be turned off or disconnected and all utility meters to be removed.
(4) No dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room which has been designated as unfit for human habitation, has been placarded as such and vacated shall be used again for human habitation until written approval is secured from the appropriate authority and the placard removed by the appropriate authority.
(5) The appropriate authority shall rescind the designation as unfit for human habitation and remove the placard when the defect or condition upon which such designation and placarding was based has been removed or eliminated and the dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room is deemed by the appropriate authority as a safe, sanitary and fit place for human habitation.
(6) No person shall deface or remove the placard from any dwelling, dwelling unit, roominghouse, rooming unit, dormitory or dormitory room which has been designated as unfit for human habitation and has been placarded as such, except as provided in subsection (b)(4) of this section.
(7) Any person affected by any decision of the appropriate authority or by any designation or placarding of a dwelling, dwelling unit, rooming unit, dormitory or dormitory room as unfit for human habitation shall be granted a hearing on the matter before the appropriate authority under the procedure set forth in section 6.5-69 .
(c) Demolition of dwellings, dwelling units, roominghouses, rooming units, dormitories or dormitory rooms designated as unfit for human habitation. Any demolition necessary as a result of a designation that the rental unit is unfit for human habitation must be done in accordance with M.S.A. § 463.152.