99.200. All real property of an authority shall be exemptfrom levy and sale by virtue of an execution, and no execution orother judicial process shall issue against the same nor shalljudgment against an authority be a charge or lien upon its realproperty; provided, however, that the provisions of this sectionshall not apply to or limit the right of obligees to foreclose orotherwise enforce any mortgage of an authority or the right ofobligees to pursue any remedies for the enforcement of any pledgeor lien given by an authority on its rents, fees or revenues.
(RSMo 1939 ยง 7872)