770 ILCS 15/20
Except as otherwise provided in this Section, whenever a claim for lien has been filed with the County Recorder or Registrar of Titles that would prevent the closing of a transaction or conveyance, an escrow account shall be established from the proceeds from the transaction or conveyance in an amount sufficient to release the claim for lien. The requirement to establish an escrow account, as provided for in this Section, shall not be cause for any party to refuse to close the transaction. These monies shall be held in escrow until the parties' rights to the escrowed monies have been determined by written agreement of the parties, a court of law, or other process as may be agreed to by the parties. Upon funds in the amount of the claimed lien being escrowed, a release of the claim for lien shall be provided by the broker claiming the lien. The parties are not required to follow this escrow procedure if alternative procedures which would allow the transaction to close are available and are acceptable to the transferee in the transaction. If the proceeds from the transaction are insufficient to release all liens claimed against the commercial real estate, including the broker's lien, then the parties are not required to follow this escrow procedure in the Section.
770 ILCS 15/20