Minn. Stat. § 548.25: VACATING REAL ESTATE JUDGMENT; WITHIN WHAT TIME.

No judgment or decree quieting title to land or determining the title thereto or adverse claims therein heretofore entered or hereafter to be entered shall be adjudged invalid or set aside, unless the action or proceeding to vacate or set aside such judgment or decree shall be commenced, or application for leave to defend be made, within five years from the time of recording a certified copy of such judgment or decree in the office of the county recorder of the county in which the lands affected by such judgment or decree are situated.