770 ILCS 60/28
If any money due to the laborers, materialmen, or sub-contractors be not paid within 10 days after his notice is served as provided in sections 5, 24, and 25, then such person may file a claim for lien or file a complaint and enforce such lien within the same limits as to time and in such other manner as hereinbefore provided for the contractor in section 7 and sections 9 to 20 inclusive, of this Act, or he may sue the owner and contractor jointly for the amount due in the circuit court, and a personal judgment may be rendered therein, as in other cases. In such actions, as in suits to enforce the lien, the owner shall be liable to the plaintiff for no more than the pro rata share that such person would be entitled to with other sub-contractors out of the funds due to the contractor from the owner or one knowingly permitted by the owner to contract for such improvements and the contractor , except as hereinbefore provided for laborers and materialmen, and such action shall be maintained against the owner only in case the plaintiff establishes a right to the lien. All suits and actions by sub-contractors shall be against both contractor and owner jointly, and no judgment shall be rendered therein until both are duly brought before the court by process or publication, and such process may be served and publication made as to all persons except the owners as in other civil actions. All such judgments, where the lien is established shall be against both jointly, but shall be enforced against the owner only to the extent that he is liable under his contract as by this Act provided, and shall recite the date from which the lien thereof attached according to the provisions of Sections 1 to 20 of this Act; but this shall not preclude a judgment against the contractor, personally, where the lien is defeated.
770 ILCS 60/28