and you have been together for all those 10 years ? your life is a mess already to save someone else’s . this ain’t a movie. a heads up to the authorities is enough , if you have some proofs report them , that is it, i would suggest not talking to the girl or her family alone !! what if this guy ends up ruining your life even more , as you said , he is an influential man . if your life wasn’t a mess already , i would have suggested standing up for someone like that girl but in this case, choose yourself and fix your life. get out of this chaos as soon as possible, you mental health is at stake.
that girl is pretty unlucky for having a family like that and i just wish god blesses her soon!!