Minn. Stat. § 504B.315: RESTRICTIONS ON EVICTION DUE TO FAMILIAL STATUS.

(a) As used in this section, "familial status" has the meaning given it in section 363A.03, subdivision 18.

(b) No residential tenant of residential premises may be evicted, denied a continuing tenancy, or denied a renewal of a lease on the basis of familial status commenced during the tenancy unless one year has elapsed from the commencement of the familial status and the landlord has given the tenant six months prior notice in writing, except in case of nonpayment of rent, damage to the premises, disturbance of other tenants, or other breach of the lease. Any provision, whether oral or written, of any lease or other agreement, whereby any provision of this section is waived by a tenant, is contrary to public policy and void.