Minn. Stat. § 282.03: LIMITATIONS IN USE OF LANDS.

There may be attached to the sale of any parcel of forfeited land, if in the judgment of the county board it seems advisable, conditions limiting the use of the parcel so sold or limiting the public expenditures that shall be made for the benefit of the parcel or otherwise safeguarding against the sale and occupancy of these parcels unduly burdening the public treasury.