S.C. Code § 15-19-510
In an action arising for the recovery of purchase money which is past due for any real or personal property, the plaintiff, at the time of the issuing of the summons or any time afterwards, may cause the property of the defendant for which the purchase money is payable to be attached in the manner prescribed in this article as a security for the satisfaction of such judgment as the plaintiff may recover. For the purposes of this section an action shall be deemed commenced when the summons is issued. The warrant of attachment must be obtained from a judge, clerk of the court or magistrate in which or before whom the action is brought, or from a circuit judge. The warrant of attachment may be issued whenever it shall appear by affidavit that a cause of action exists against such defendant, specifying the amount of the claims and the grounds thereof, that the amount is due and that the action is brought for the purchase money of real estate or personal property which has been sold to the defendant and which he has refused or failed to pay. The plaintiff at the time of procuring such warrant of attachment shall file the affidavit upon which it is granted in the office of the clerk of court of common pleas or with the magistrate in which or before whom the action is to be tried.
S.C. Code § 15-19-510