1. Guaranteed? Man already has multiple suits and judgements against him in civil court in past few years in addition to having servdd time years ago for a similar crime. He even has a warrant out in another state AFAIK. No criminal charges in NY(where I am based) or California(where he and many of his victims are).
2. It's very hard collecting money from him even after you win the judgement, from my conversations with those who have. In the end, I risk taking an even bigger hit especially if he countersues(even the odd lawyer willing to work on contingency warns me that he will almost certainly countersue for which I will need to pay out of pocket)
My best option in light of these realizations was to build this site which seems to have at least made a dent in his ability to scam. For example, the guy has been playing with the spelling of his name, at least partially I'm guessing so my site does not pull up when his next victim googles.