Legal Question in Landlord & Tenant Law in Illinois

Since you are month to month, the proper notice to give is a 30 days notice. If you need more time to move, you should discuss it with your landlord; otherwise, you will have to leave when the 30 days are up.

A 30 day notice is the proper way to terminate a month to month lease. Depending on the reason for the 30 day notice, your landlord may be willing to grant you an extension if you have been a good tenant.

If you had a one-year lease and neither side renewed it, most leases become month-to-month and a 30-day notice is appropriate in such circumstances. Maybe it was your landlord's not particularly friendly way of letting you know you need to re-up or you're out because your landlord needs certainty for the coming year. Butr if the place has already been relet, your options could be limited. So I agree with the others; first start with your landlord. If you get push-back, talk to an attorney who can review your lease, review the notice, see whether all legal formalities were followed, and let you know when the "30 days" are up -- if the notice was not given on the 1st day of a month it is highly possible you may actually have an extra month to stay -- timing is everything!