70 ILCS 605/3-25
The order organizing the district shall be final, and separate or joint appeals may be taken by the parties affected thereby as in other civil cases. However, the taking of an appeal or the reversal of the order upon such appeal shall not impair or invalidate the organization as to all other persons not appealing nor delay the work or subsequent proceedings so far as it affects the lands of such other persons, unless the reversal of the order by the reviewing court as to the owners so appealing would work a substantial hardship on the owners or some of the owners not appealing and the appeal has been made to operate as a stay of the enforcement of the judgment. When any such an appeal is taken, the commissioners or any landowner not appealing may, within 15 days after the notice of appeal has been made to operate as a stay, move the trial court to stay the proceedings as to the owners of the lands not appealing, pending the determination of the appeal, upon the grounds that the reversal of the order by the reviewing court as to the owners appealing would work a substantial hardship on all or some of the owners not appealing. In the event the proceedings are so stayed and the order appealed from is thereafter affirmed, or the appeal is dismissed, then, upon the receipt of final process from the reviewing court the trial court shall vacate the stay and the proceedings shall thereafter continue in the same manner as though no appeal had been taken. In the event the proceedings are so stayed and the order appealed from is reversed then, upon the receipt of final process from the reviewing court the trial court may modify or vacate the original order as to the owners of the lands not appealing, as justice may require under the circumstances.
70 ILCS 605/3-25