S.C. Code Ann. § 20-7-1547
(A) A guardian ad litem may be either an attorney or a layperson. A person must not be appointed as a guardian ad litem pursuant to Section 20-7-1545 unless he possesses the following qualifications:
(D) Upon appointment to a case, a guardian ad litem must provide an affidavit to the court and to the parties attesting to compliance with the statutory qualifications. The affidavit must include, but is not limited to, the following: