CAMBRIDGE Independent Senior Living SQUARE Ages 55 Plus Senior Apartments No Restrictions on Income 657 Grover Ave. Ottawa, IL 815-431-0548 Broker Owned Tri-County Property Mgmt. Inc. CAMBRIDGE Independent Senior Living SQUARE Ages 55 Plus Senior Apartments No Restrictions on Income 657 Grover Ave. Ottawa, IL 815-431-0548 Broker Owned Tri-County Property Mgmt. Inc.