While I am sorry to hear this has happened to you Scandle I dont think anyone is surprised given the reputation of the group behind Vegas Frontier.
If you choose to work with people that have been labeled as rogues and you are doing it on a CPA basis you are playing with fire. If you just HAVE to do these kind of deals I would highly recommend you get payment IN ADVANCE. If you dont I think the odds are VERY good that you will be the one who ends up holding the bag.