S.C. Code Ann. § 6-21-130: Option or contract of purchase.

In the event of the acquisition by purchase the governing body may obtain and exercise an option from the owner of the property for the purchase thereof and may enter into a contract for the purchase thereof. Any such purchase may be made upon such terms and conditions and in such manner as the governing body may deem proper. But the exercise of an option to purchase or the entry into a contract for such purchase shall in no event bind or obligate the municipality or create any debt, liability or claim except such as may be paid from the funds provided under the authority of this chapter.