Why does Obama claim to be ?

Why does Obama claim to be concerned with America's Housing problems when one of Obama's Top Advisors and lifelong friends is Valerie Jarrett who was the Slumlord & CEO of the management company of the infamous Grove Parc Housing Project in Chicago which was declared " uninhabitable for humans " and was torn down by the government after it scored an 11 out of 100 due to the mive number of building violations it had ?