50 ILCS 510/7

(1) The political subdivision shall prepare a written description of the scope of the proposed services to be used as a basis for negotiations and shall negotiate a contract with the highest qualified firm at compensation that the political subdivision determines in writing to be fair and reasonable. In making this decision the political subdivision shall take into account the estimated value, scope, complexity and professional nature of the services to be rendered. (2) If the political subdivision is unable to negotiate a satisfactory contract with the firm which is most preferred, negotiations with that firm shall be terminated. The political subdivision shall then begin negotiations with the firm which is next preferred. If the political subdivision is unable to negotiate a satisfactory contract with that firm, negotiations with that firm shall be terminated. The political subdivision shall then begin negotiations with the firm which is next preferred. (3) If the political subdivision is unable to negotiate a satisfactory contract with any of the selected firms, the political subdivision shall re-evaluate the architectural, engineering or land surveying services requested, including the estimated value, scope, complexity and fee requirements. The political subdivision shall then compile a second list of not less than three qualified firms and proceed in accordance with the provisions of this Act.