Are you a surviving relative? Or do you just want to remove her from her home or is this a case of she does not want to be with her parents? We really need more information here.
the first thing is to talk to a Lawer and they will be the only people who can help you in this matter unless she is tied up in welfare department/social/services good luck regarding your Neice and more information next time so everyone can help you thanks
Yes we need more details to be able to even start to make suggestions. Remember this is NOT a child welfare department so all we can do is make suggestions as we understand them.