Lease cancellation notice time period

[Chris Ganz]

Good afternoon,

I wanted to reach out to see if anyone could provide some clarity on lease cancellation and the notice period. For context I have a tenant who has been in the property for close to 10 years. I purchased the property roughly 5 years ago. This past year they have started paying rent late to the point where the total accumulated time is about 3 months of back rent due. I also switched their lease from a yearly to a monthly. I am planning to cancel this lease due to the late payments etc, my question is since they are on a month-to-month can I just provide the standard 30 day notice or since they have been at the property for many years or is a longer notice period required such as 120 days etc? I am based in IL just outside of Chicago. Any input would be appreciated.