What can i do with my sisters soon to be husband?

I cannot blame you a bit for the way you feel about this man! Something is definitely wrong somewhere, but now how to find out?! Your story sounded like something out of a movie on Lifetime! That's the first thing that came to my mind! If you don't have the money for a P.I., first you can do something that may be of help to you that I HOPE may at least be a start. Call an atty. in the phone book who advertises FREE phone advice. I've done it before on several occasions with good success. Try to condense your story, maybe write down the facts. Call these attys. & you WILL get at least one who will help you or give you some ideas of what to do. They are educated on things of this nature as I was a legal sec. for 4 attys., one handled criminal law. This is one idea for you to try. Strange too that one of her children feel the same as you! I CAN well imagine how you feel for your sister AND the children. I trust this may be a good start for you. I would love to hear how you make out as I DO feel something is NOT rite! I SO DO wish you all the best, HOPE you can get to the bottom of this eerie story...:)