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Security Deposits June 3, 2026 · 4 min

Security Deposit Rules in Illinois: Caps, Timelines, and What Tenants Can Sue Over

Illinois landlords face a patchwork of security deposit rules: statewide statutes under 765 ILCS 715 govern interest and return timelines, while Chicago Municipal Code 5-12 and Cook County Code 42-201 impose stricter caps and faster deadlines. Learn the compliance framework, tenant lawsuit triggers, and real world examples.

By Curt Sloan Read

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