My father's new wife wants to put him in a nursing home. I have total power of attorney. How can I stop her? He does not want to ever go in one. My father remarried 2 1/2 years ago his new wife want him in a nursing home becasue she does not want to get a divorce. My father has dementia but is still driving and dementia is not severe. She keeps having a neurologist testing him and I want to know since I have all medical, financial and guardianship when needed also Executor of his estate. Can I stop her or does her being a spouse override my authority? My father does not have severe dementia and I believe she is using his dementia to basically get rid of him.