Illinois has specific rules for security deposits, particularly for residential properties containing five or more units.
Under the Illinois Security Deposit Return Act, when a landlord of a qualifying property intends to withhold security-deposit money for property damage, the landlord generally must provide the tenant with an itemized statement of damages within:
30 days after the tenant vacates
The law contains additional requirements concerning documentation and return of the deposit.
Read more:Illinois Security Deposit Return Act