Two Ohio cities, Toledo and East Cleveland, sued paint manufacturer Sherwin-Williams for producing lead-based paint way back when. Now Sherwin-Williams is suing them back (along with Columbus) to stop the litigation. Among other things, Sherwin-Williams is challenging the cities' use of outside, contingenc-fee lawyers to press the litigation. This sounds like an interesing claim, so I will post a link to Sherwin-Williams complaint if I can track it down.