I am trying to break a lease that was recently signed. The landlord won't return my calls, nor acknowledge my faxes or emails. I also recently learned that in the City of Chicago, landlords are required to provide a document title RLTO Section 5-120-170. I never received such a document. Should I seek legal help? I've already place numerous ads to try and find a new tenant, but I can't show the apartment as only the landlord has access.