When any bonds are sold and delivered under this chapter, the certification by the Board that the bonds have been issued in due compliance with this chapter is conclusive upon the College and every person of the right, power, and authority for the issuance of the bonds, the legality and validity of the bonds, and the principal debt and interest represented by the bonds. After the certification is issued, the legality and validity of the bonds may not be subject to question in any court by the College or by any person for or on its behalf. This section must be made part of the contract and obligation represented by each bond sold and delivered under this chapter.