A Chicago city ordinance that previously imposed a 3 business-day deadline for allowing unit owners to inspect an association's financial books and records was amended in September 2010 to 10 business days.
The ordinance is largely unknown and hasn't been tested extensively in court, but owners have prevailed under the 3-day deadline.
The ordinance applies specifically to "financial books and records." The IL Condo Act allows 30 days for other types of documents.