My mother is 83 and has multiple health issues including heart problems. Lymphodemia, neuropathy, high blood pressure and dimensia. She is on countless medications including high doses of oxycodone, and morphine. We four siblings know she should not be driving, but she has a drivers license and she does drive.....she is dangerous but will not a admit or acknowlege it. She also forgets more than she remembers and is hemouraging thousands of dollars a week at the local casino. She is combative and won't discuss anything that we know needs to be addressed. Is there a resource we have to take control of the situation. My brother has POA but I'm not sure how much leverage that affords him unless we can prove she is incompetent. How is that accomplished Where do we go?