(735 ILCS 5/2-405)
(from Ch. 110, par. 2-405)
Joinder of defendants.
(a) Any person may be made a defendant who, either jointly,
severally or in the alternative, is alleged to have or claim an interest
in the controversy, or in any part thereof, or in the transaction or
series of transactions out of which the controversy arose, or whom it is
necessary to make a party for the complete determination or settlement
of any question involved therein, or against whom a liability is
asserted either jointly, severally or in the alternative arising out of
the same transaction or series of transactions, regardless of the number
of causes of action joined.
(b) It is not necessary that each defendant be interested as to all
the relief prayed for, or as to every cause of action included in any
proceeding against him or her; but the court may make any order that may be
just to prevent any defendant from being embarrassed or put to expense
by being required to attend any proceedings in which such defendant may have no
(c) If the plaintiff is in doubt as to the person from whom he or she is
entitled to redress, he or she may join two or more defendants, and state his or her
claim against them in the alternative in the same count or plead
separate counts in the alternative against different defendants, to the
intent that the question which, if any, of the defendants is liable, and
to what extent, may be determined as between the parties.
(Source: P.A. 82-280.)