answer:How do you know he wasn’t licensed? Did you ask to see the license when you hired him? That’s the point of it, after all. So that you can review and verify his credentials. If you didn’t do that, then how do you expect the licensing system to work, anyway? You can always sue him based on shoddy performance, whether he was licensed or not. If he wasn’t licensed and you hired him anyway, then you were somewhat complicit in his “crime”, if he committed one. And if you believe that he defrauded you with a counterfeit license or other credentials (which you reviewed), then you need to file a complaint which, depending on the merits of the complaint and subsequent investigation (if any) result in prosecution. But it doesn’t happen automatically just because you aren’t happy with the work that was done.