I'm sorry to hear of your dilemma.
Either your sister or your brother will want to consider making application to the court in AZ to be appointed as your mother
's conservator. A conservator is a person appointed by the probate court to take care of the property or estate of another person who is considered by the court to be unable of handling their own financial affairs. The conservator is responsible to the court for how the ward's funds or property are managed.
And if necessary, they may also apply to be named a Guardian of your mother. A guardian is a person appointed by the probate court to protect the legal rights of another person called a ward. If the court decides the ward is legally incapacitated or incapable of taking care of him or herself, it may give the guardian authority to make all decisions on behalf of the ward.
Essentially, unless and until the court determines that your mother is incompetent to care for herself---either physically or financially or both----she will not be prevented from making unwise expenditures.
I wish you and your family the best in 2011.
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