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I am sorry to hear about this situation. It sounds like the family may consider adult guardianship for her. As her guardian, you will be able to override her decisions, make decisions for her, and get her the help she needs. It would be as though she was a minor. You'd file a petition with the court, serve all interested parties, and have a hearing. She would be called the "ward."
The Court will appoint a person in the best interest of the ward. The person filing for this guardianship has to serve her, all immediate relatives, husband included, and they can not become involved, or reply and support or not support the petition, and possibly introduce another candidate for guardianship such as themselves. The judge makes the final decision.
See HERE for more.
An attorney is recommended, but not mandatory.
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