If you do not pay your rent, the landlord can evict you. If you abandon the unit, after a reasonable period or time and with an order of possession, the landlord can dispose of property left behind as the landlord sees fit.
In order to do any of that legally, your landlord first needs to give you proper notice, file a lawsuit in court, win the law suit, and get a court order.
The landlord cannot just lock you out or take your things on his own.
See www.illinoislegalaid.org for more information.
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