The Illinois Landlords Five-Day Notice is a legal document used by landlords in the state of Illinois to inform their tenants of an issue that must be addressed in a timely manner. This notice is sent to tenants when they have violated the terms of their rental agreement, usually due to late or non-payment of rent. The notice gives the tenant five days to remedy the issue, such as paying the rent or vacating the unit. If the tenant fails to comply with the notice within the given timeframe, the landlord may take legal action. There are two types of Illinois Landlords Five-Day Notice: the Five-Day Notice to Pay Rent and the Five-Day Notice to Quit. The Five-Day Notice to Pay Rent is used by landlords to inform tenants that they have not paid their rent and must do so within five days or face eviction. The Five-Day Notice to Quit is used when tenants have violated the terms of their rental agreement in some other way, such as having unauthorized occupants, and must vacate the unit within five days or face eviction.