What about a right to a defense attorney in a civil case? That way you can't bring frivolous suits. That's actually exactly how the criminal courts work too. This seems too simple of a solution though, are there good reasons not to do this?
It's not crazy to think that before the state should use it's power against you on behalf of another citizen, it's up to the state to ensure that this action is lawful and correct to do (which might require supplying you with an attorney).