When I met my husband he was a very kind gentle man he only played the bad boy image in the bedroom with me. Never showed it outside until after we got married. Otherwise there would have never had been a wedding once we were married all of a sudden within 6 months we had full custody of his kids and he did a 360. I had no idea what was going on.
Ok, so which "persona" is the "real" husband and which is the act? Did he play the kind/gentle man to reel you in and get custody of his kids, or did he play the bad boy as in role-playing? Do you know any of his history before you met him? Has he spent time in the big house?
From your original post the mental picture I had was of a biker dude with all of the trappings and you liked the fast lane. My apologies, because from this post it seems you thought you were getting kind and gentle who could play the bad boy, but instead ended up with the bad boy wanting to hand you off to his buddies and sell you in porn videos.
If he just plays a bad boy but actually doesn't have the real capability, then by all means you need to get an attorney and file for D, stay in your house and kick him out. If he has custody of his girls then assume you have no custody rights at all. When they are old enough, they will have a say in where they live, If he is ACTUALLY a bad dude who is also a con-artist (a real possibility), I would advise extreme caution in how you extricate yourself from this situation. I sincerely hope it is the first situation, but in any case, there isn't anything you want to stay with. Run as fast as you can!