Sec. 20. (a) If:
(1) an appeal is not taken; or
(2) an appeal is taken but is unsuccessful;
the development authority shall proceed with the plan to the extent that money is available for that purpose.
(b) Negotiations for the purchase of property may be carried on directly by the development authority, by its employees, or by expert negotiators. However, an option, a contract, or an understanding relative to the purchase of real property is not binding on the development authority until approved and accepted by the development authority in writing. Payment for the property purchased shall be made when and as directed by the development authority but only on delivery of proper instruments conveying the title or interest of the owner to the development authority or its designee.
(c) The acquisition of real and personal property by the development authority under this chapter is not subject to the provisions of IC 5-22, IC 36-1-10.5, or any other statutes governing the purchase of property by public bodies or their agencies.