Minnesota Statutes Civil Procedure (Ch. 540-552) § 550.18. Notice of sale

(1) if the sale be of personal property, by giving ten days posted notice of the time and place thereof;

(2) if the sale be of real property, on execution or on judgment, by six weeks posted and published notice of the time and place thereof, describing the property with sufficient certainty to enable a person of common understanding to identify it; and

(3) a judgment creditor shall record a certified copy of the order directing sale of real property issued pursuant to section 550.175, if the real property is a homestead, with the county recorder or registrar of titles as appropriate in the county in which the real property is located before the first date of publication of the notice of sale required under clause (2).

An officer who sells without such notice shall forfeit $100 to the party aggrieved, in addition to paying actual damages; and a person who before the sale or the satisfaction of the execution, and without the consent of the parties, takes down or defaces the notice posted, shall forfeit $50; but the validity of the sale shall not be affected by either act, either as to third persons or parties to the action.