You mother has lost it. In a secure facility, fighting the orderlies, not taking her medications.
In some respects, it's too late. She does not have the mental capacity to sign papers. She can't execute a power of attorney to let you gain access to her bank account to buy things for her. In time, Mass Health will grab the account to reimburse themselves.
People need to act around 55-65. There are people coming in to get wills who are 83, but there are legal difficulties in prior probate proceedings that will require time to get assets under their control.
No matter what the situation, something can be done. But it's the same as preventive medicine. The earlier you act, the greater the options to deal with contingencies that may develop.
