Minn. Stat. § 504B.391
Subd. 1. Noncompliance; fines.
If the court finds that a landlord has willfully failed to comply with a court order to remedy a violation, the court shall fine the landlord according to the following schedule:
Subd. 2. Criminal penalty.
A landlord who willfully fails to comply with a court order to remedy a violation is guilty of a gross misdemeanor if it is the third or subsequent time that the landlord has willfully failed to comply with an order to remedy a violation within a three-year period.