S.C. Code Ann. § 62-6-302: Multiple-party accounts may be paid on request to one or more parties.

A financial institution, on request, may pay sums on deposit in a multiple-party account:

(1) to one or more of the parties, whether or not another party is disabled, incapacitated, or deceased when payment is requested and whether or not the party making the request survives another party;

(2) to the personal representative of a deceased party, if proof of death is presented to the financial institution showing that the deceased party was the survivor of all other persons named on the account either as a party or beneficiary, unless the account is without right of survivorship under Section 62-6-202; or

(3) in accordance with a court order directing the payment of the sums on deposit.