10 ILCS 5/6-56
Not more than 30 nor less than 28 days before any election under this Article, all owners, managers, administrators or operators of hotels, lodging houses, rooming houses, furnished apartments or facilities licensed or certified under the Nursing Home Care Act, which house 4 or more persons, outside the members of the family of such owner, manager, administrator or operator, shall file with the board of election commissioners a report, under oath, together with one copy thereof, in such form as may be required by the board of election commissioners, of the names and descriptions of all lodgers, guests or residents claiming a voting residence at the hotels, lodging houses, rooming houses, furnished apartments, or facility licensed or certified under the Nursing Home Care Act, the Specialized Mental Health Rehabilitation Act of 2013, the ID/DD Community Care Act, or the MC/DD Act under their control. In counties having a population of 500,000 or more such report shall be made on forms mailed to them by the board of election commissioners. The board of election commissioners shall sort and assemble the sworn copies of the reports in numerical order according to ward and according to precincts within each ward and shall, not later than 5 days after the last day allowed by this Article for the filing of the reports, maintain one assembled set of sworn duplicate reports available for public inspection until 60 days after election days. Except as is otherwise expressly provided in this Article, the board shall not be required to perform any duties with respect to the sworn reports other than to mail, sort, assemble, post and file them as hereinabove provided.
Except in such cases where a precinct canvass is being conducted by the Board of Election Commissioners prior to a Primary or Election, the board of election commissioners shall compare the original copy of each such report with the list of registered voters from such addresses. Every person registered from such address and not listed in such report or whose name is different from any name so listed, shall immediately after the last day of registration be sent a notice through the United States mail, at the address appearing upon his registration record card, requiring him to appear before the board of election commissioners on one of the days specified in Section 6-45 of this Article and show cause why his registration should not be cancelled. The provisions of Sections 6-45, 6-46 and 6-47 of this Article shall apply to such hearing and proceedings subsequent thereto.
Any owner, manager or operator of any such hotel, lodging house, rooming house or furnished apartment who shall fail or neglect to file such statement and copy thereof as in this Article provided, may, upon written information of the attorney for the election commissioners, be cited by the election commissioners or upon the complaint of any voter of such city, village or incorporated town, to appear before them and furnish such sworn statement and copy thereof and make such oral statements under oath regarding such hotel, lodging house, rooming house or furnished apartment, as the election commissioners may require. The election commissioners shall sit to hear such citations on the Friday of the fourth week preceding the week in which such election is to be held. Such citation shall be served not later than the day preceding the day on which it is returnable.
10 ILCS 5/6-56