S.C. Code Ann. § 59-136-380

All provisions of a resolution authorizing or providing for the issuance of the bonds in accordance with Section 59-136-320 and of the covenants and agreements constitute valid and legally binding contracts between the university and the several holders of the bonds, regardless of the time of issuance of the bonds, and is enforceable by the holder or holders by mandamus or other appropriate action, suit, or proceeding at law or in equity in any court of competent jurisdiction.