Legal Question in Real Estate Law in Illinois

You don't remember what you and the landlord meant this to mean when the two of you signed the lease containing it??? If you want it to mean what I think you do, you'll have to rely on what it says and do what it says. That being said, this is pretty unusual and would not normally be in a form lease so there must be something special going on: perhaps you are a student, or are in the military, or the landlord is trying to sell or redevelop the building, or something else..... So if it is NOT part of the standard form of lease but the landlord wrote it in, then if there is any "ambiguity" it should favor you unless YOU wrote it in. What could be ambiguous? Well, (1) is it 30 days anytime, or must it be like in State law for termination of month-to-month tenancies, at least 30 days prior to the next rent date -- I would argue that if this was written in as a special clause, it should mean 30 days at any time, and (2) "all monies" - I don't know what that means since usually a lease talks about "rent" -- so what other monies might the landlord be talking about. Only you may know.