Md. Code Ann., Nat. Res. § 3-124

The Service may not be required to give any bond as security for costs, supersedeas, or any other security in any suit or action brought by or against it, or in proceedings to which it may be a party in any court in the State. The Service may appeal to a court having jurisdiction without bonds, supersedeas, or security of any kind. No builder’s, materialman’s, contractor’s, laborer’s, or mechanic’s liens of any kind or character may ever attach to or become a lien upon any property, real or personal, owned or controlled by the Service. No assignment of wages may be binding upon or recognized by the Service.