S.C. Code Ann. § 36-9-501 – Default; procedure when security agreement covers both real and personal property

(1) When a debtor is in default under a security agreement, a secured party has the rights and remedies provided in this part and except as limited by subsection (3) those provided in the security agreement. He may reduce his claim to judgment, foreclose, or otherwise enforce the security interest by any available judicial procedure. If the collateral is documents the secured party may proceed either as to the documents or as to the goods covered by the documents. A secured party in possession has the rights, remedies, and duties provided in Section 36-9-207. The rights and remedies referred to in this subsection are cumulative.
(2) After default, the debtor has the rights and remedies provided in this part, those provided in the security agreement, and those provided in Section 36-9-207.
(3) To the extent that they give rights to the debtor and impose duties on the secured party, the rules stated in the subsections referred to below may not be waived or varied except as provided with respect to compulsory, disposition of collateral (subsection (3) of Section 36-9-504 and Section 36-9-505) and with respect to redemption of collateral (Section 36-9-506) but the parties may by agreement determine the standards by which the fulfillment of these rights and duties is to be measured if the standards are not manifestly unreasonable:
1. (a) subsection (2) of Section 36-9-502 and subsection (2) of Section 36-9-504 insofar as they require accounting for surplus proceeds of collateral;
2. (b) subsection (3) of Section 36-9-504 and subsection (1) of Section 36-9-505 which deal with disposition of collateral;
3. (c) subsection (2) of Section 36-9-505 which deals with acceptance of collateral as discharge of obligation;
4. (d) Section 36-9-506 which deals with redemption of collateral;
5. (e) subsection (1) of Section 36-9-507 which deals with the secured party's liability for failure to comply with this part.
(4) If the security agreement covers both real and personal property, the secured party may proceed under this part as to the personal property or he may proceed as to both the real and the personal property in accordance with his rights and remedies in respect of the real property in which case the provisions of this part do not apply.
(5) When a secured party has reduced his claim to judgment the lien of any levy which may be made upon his collateral by virtue of any execution based upon the judgment shall relate back to the date of the perfection of the security interest in the collateral. A judicial sale, pursuant to the execution, is a foreclosure of the security interest by judicial procedure within the meaning of this section, and the secured party may purchase at the sale and thereafter hold the collateral free of any other requirements of this chapter.