Of course, you can hire a lawyer and sue anybody for anything. But hiring that lawyer and filing court motions costs money, so there's no point if the entity you're suing has no money. That's why I was curious, but according to other posts here, it does seem there might be at least some money to go after.
if you ask for less than a court battle would cost you can just ask for slightly less than what that would cost the other party. In the US each party pays their own cost generally.