Is there any legal avenue we have to prove her incompetent and/or get her off the road and out of the casino?

I had the same thing with my Dad. He would not give up driving and was running into things. I talked to his dr. who wrote a letter to the DOT and told them there were concerns about medications, health issues, and that he was just not safe to be driving. Then I called the local police and told them of his running into things and not even knowing what he has hit. He smashed out his front headlight and blew out a tire and continued driving on the rim. They then also contacted the DOT and kept an eye out for him on the road. they never did pull him over, but he got a letter telling him he had like 30 days to surrender his license. As for POA, you will most likely need a guardianship if there is money involved. That is what I had to do, and now my Dad is in a nursing home getting the care he needs, and I am paying his bills with his money instead of the casino getting it all. He also is a terrible gambler and my lawyer got the guardianship started. We did not have to have the hearing as my Dad finally admitted he could not care for himself anymore and was making poor decisions with his money. Good luck to you!

I'm into physical world fixes these days.
Pull the distributor cap from her car.
Honestly. Hang in there, love her and love yourself.

We have a similar situation with 92 year old mom. We asked the Doc to tell her she can't drive and also had the DMV revoke her license. With your mom on the high doses of medications that diffinately inhibit her driving skills you shouldn't have any trouble. Mom also has a gambling addiction - the only place she will go to get out of the house. She doesn't have thousands to throw away weekly, but manages to spend all of her food and monies for bills on slots and expects us to compensate. Because of guilt or whatever, and its the only thing she looks foward too or will do, the four of us take turns taking her to casino and try to control how long we stay and the amount she spends. She is also combative, not pleasant and difficult to engage in any meanful conversations. She has difficulty getting around and doc is not otimistic she will see her next birthday in Sept due to a degenerative kidney disease we have all agreed to minimally treat at this time. Good luck to you and

far as i know, all you have to do is make an anonymous call to DMV and report her, they will ask her to come in and take tests, if she doesn't pass, her license is revoked. after that it's up to you kids to disable her vehicle or remove it from the premises.

you would need 2 doctors to declare her incopentent, then your brother as poa would need to take this to court and get guarianship over her. hope this helps, will keep you in my prayers

You might start by enlisting the help of your mother's doctor who should be willing to tell her not to drive while taking pain medication. Several insurance companies and AAA offer online safe driving skills tests which many of my clients have used to help elders realize their driving skills have decreased. High doses of pain meds and her daily casino trips may indicate a couple of addictive behaviors which should also be addressed with her doctor.