(810 ILCS 5/3-119)
(from Ch. 26, par. 3-119)
Notice of right to defend action.
In an action for breach
of an obligation for which a third person is answerable over pursuant to
this Article or Article 4, the defendant may give the third person written
notice of the litigation, and the person notified may then give similar
notice to any other person who is answerable over. If the notice states
(i) that the person notified may come in and defend and (ii) that failure
to do so will bind the person notified in an action later brought by the
person giving the notice as to any determination of fact common to the 2
litigations, the person notified is so bound unless after seasonable
receipt of the notice the person notified does come in and defend.
(Source: P.A. 87-582.)