I'm afraid this is not something I really know much of anything about. But I noticed no one had yet replied to your post. So I thought I would.

Unfortunately I don't know if there is much of anything you can do. You didn't mention what it is he (or his family) may be doing. If you think they might be doing something that is illegal you could report that to local law enforcement. You might also check in with any local women's rights organizations to see if they might have any suggestions for you.

Perhaps other PC members will have better suggestions they can offer.