The county commission of any participating county may challenge the validity of any contract or purchase entered, solicited or proposed by the authority in violation of section ten or eleven of this article by seeking declaratory or injunctive relief in the circuit court of the county of the challenging party. If the court finds by a preponderance of evidence that the provisions of section ten or eleven of this article have been violated, the court may declare the contract or purchase to be void and may grant any injunctive relief necessary to correct the violations and protect the funds of the authority as a joint development entity.