Tenant died. Girlfriend of tenant was not on lease however had a key. Girlfriend was allowed in building by landlord after the death to take items that she wanted without the permission of the family members. When family contacted landlord to remove personal property, landlord refused to let them and stated it belonged to them as tenant owed rent. No legal action was taken by landlord and landlord signed new lease for said property with girlfriend with personal property still in building. What recourse does family have now that items are gone. What state law in Illinois covers this?