The 16 year old girl is a minor and someone is legally responsible for her. Unless she is emancipated (read- employed, self sufficient, not dependent on anyone else), she has to wait until she is 18 when she is legally able to decide where she will live.
I would not risk it.
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Why in the heck would you want a 16 year old to move in with you. You are asking for trouble.
In no way am I offering you legal advice, and in no way has my comment created an attorney-client relationship. You are not to rely upon my note above in any way, but insted need to sit down with counsel and share all relevant facts before receiving fully-informed legal advice. If you want to be completely sure of your rights, you must sit down with an experienced criminal defense attorney to be fully aware of your rights.