By request, one can now filter Property Finder to show property owned by the City of Chicago and property associated with the Cook County Land Bank Authority at the same time. Previously, Cityscape members could only show one or the other. 

Property Finder now also makes the distinction between property currently owned by the City of Chicago and property previously owned. 

The screenshot below also shows how the two filters have moved from "Special filters" to a new "Gov't owned land" group of filters.