I'm facing this very scenario right now. We're being sued by a lawyer who is working on contingency for a client who is so delusional it makes me sick to my stomach to think about it. The really ugly side of this is that lawyers of the ilk that are suing us find specific loopholes through which they can (or attempt to) attach you personally, even if you're incorporated. We're being strong-armed to settle, and will likely pay these jerks something, just to have it go away.
If "loser-pays" applied here, this lawsuit would have been wrapped up after the very first round of inquiry.