S.C. Code Ann. § 15-67-10: Persons who may bring action to determine adverse claim.

Any person in possession of real property, by himself or his tenant, or any person having or claiming title to vacant or unoccupied real property may bring an action against any person who claims or who may or could claim an estate or interest therein or a lien thereon adverse to him for the purpose of determining such adverse claim and the rights of the parties, respectively.