Minn. Stat. § 507.41: PENALTY FOR FAILURE TO DISCHARGE.

When any mortgagee, mortgagee's personal representative or assignee, upon full performance of the conditions of the mortgage, shall fail to discharge the same within ten days after being thereto requested and after tender of the mortgagee's reasonable charges therefor, that mortgagee shall be liable to the mortgagor, the mortgagor's heirs or assigns, for all actual damages thereby occasioned; and a claim for such damages may be asserted in an action for discharge of the mortgage. If the defendant be not a resident of the state, such action may be maintained upon the expiration of 60 days after the conditions of the mortgage have been performed, without such previous request or tender.