A Q&A guide to commercial real estate leasing law for landlords and tenants in Illinois. This Q&A addresses state laws and customs that impact commercial leasing, including the execution and enforceability of leases, disclosures, transfer taxes, rents and security deposits, permitted assignments, financings, remedies, and automatic terminations in foreclosure actions. Federal, local, or municipal law may impose additional or different requirements. Answers to questions can be compared across a number of jurisdictions (see Real Estate Leasing: State Q&A Tool).