Can a commercial landlord lock out tenant in Illinois?

In Illinois, a commercial landlord cannot legally lock out a tenant without following proper legal procedures. Lockouts are generally considered illegal self-help eviction and can lead to legal consequences for the landlord. If a tenant fails to pay rent or violates lease terms, the landlord must initiate formal eviction proceedings in court rather than resorting to lockout. Always consult an attorney for specific legal advice related to individual situations.