Just as banks are (maybe) getting over the worst of the housing market's troubles, more and more people are raising red flags about the sector's CRE exposure. And bankers may not be helping themselves by dragging their feet on loans gone bad.

"The rate at which these troubled loans are being resolved has been sluggish," James Helsel, treasurer of the National Association of Realtors, told the Joint Economic Committee July 10. "Over $60 billion in assets have become distressed this year but only $4 billion worth of commercial loans have been resolved so far."

SEE ALSO: The billions the SBA had to buy back from lenders last year.