Lil, thank you for sharing this. I started conveying the story to my wife and she couldn't hear much beyond, "and her daughter came down..." I'm sorry you had to go through this and that you were ever in a relationship with someone like this.
My initial thought after reading this was, "is the daughter okay?"
I know from my interactions with you that you are doing well and have escaped such things, but how is she doing? I truly hope she is well and learned from your decision to leave a bad situation.