No member or employee of a commission shall acquire any interest, direct or indirect, in any redevelopment project or in any property included or planned to be included in any redevelopment area, nor shall the member have any interest, direct or indirect, in any contract or proposed contract for materials or services to be furnished or used by a commission, or in any contract with a redeveloper or prospective redeveloper relating, directly or indirectly, to any redevelopment project, except that a member or employee of a commission may acquire residential property in a redevelopment area from a person or entity other than the commission after the redevelopment plan for that area is adopted if:
S.C. Code § 31-10-70