Minn. Stat. § 504B.401
Subd. 1. Contents.
(a) On receipt of the complaint in section 504B.395, the court administrator shall prepare a summons. The summons shall:
Subd. 2. Service.
The summons and complaint must be served upon the landlord or the landlord's agent not less than seven nor more than 14 days before the hearing. Service shall be by personal service upon the defendant pursuant to the Minnesota Rules of Civil Procedure. If personal service cannot be made with due diligence, service may be made by affixing a copy of the summons and complaint prominently to the residential building involved, and mailing at the same time a copy of the summons and complaint by certified mail to the last known address of the landlord.