S.C. Code Ann. § 13-12-160: Resolutions, covenants, and agreements pertaining to issuance of bonds are binding; enforceability.

All provisions of a resolution authorizing the issuance of the bonds in accordance with this chapter and any covenants and agreements constitute legally binding contracts between the authority and the several holders of the bonds, regardless of the time of issuance of the bonds, and are enforceable by any holder by mandamus or other appropriate action, suit, or proceeding at law or in equity in any court of competent jurisdiction.