After receipt of summons in an action to take or damage a common element, the unit owners' association shall provide to the plaintiff a list of the unit owners, mortgagees and lienholders, and the plaintiff shall provide notice by certified mail to the unit owners, mortgagees and lienholders.
The notice shall include the following:
An immaterial error in providing notice shall not invalidate the legal effect of the proceeding.
765 ILCS 605/9.4