S.C. Code Ann. § 20-5-20: Power of wife to convey, bequeath, and devise separate property; descent.

A married woman shall have power to bequeath, devise or convey her separate property in the same manner and to the same extent as if she were unmarried and, dying intestate, her property shall descend in the same manner as the law provides for the descent of the property of husbands. All deeds, mortgages and legal instruments of whatever kind shall be executed by her in the same manner and have the same legal force and effect as if she were unmarried.