Anonymous wrote:OP - it sounds like rather than calling it a caregiver, see if you could find a housekeeper
to come twice a week to prepare some meals/freezing some single potions in dish to warm up and note how to do so, do laundry, take him out shopping for food weekly. Also hire a service to clean every other week. The houdekeeper would be a care reporter to your brother on how he is doing.
If you go out, you could also do research on local care agencies and share services provided and fees for future use to your brother. Also at 90 look at options on assisted living and nursing care. If he has the funds and your brother is overwhelmed, see if there are any elder care managers who could be hired to coordinate any services.
I think they need both a caregiver and a housekeeper. We started with the housekeeper route for my 88 year old mother, she forgot to eat the food, got confused by who this person was in her house, she started hiding things like dirty clothes and dishes so the women wouldn't wash them. The housekeeper felt useless and didn't want to continue working for us. Finding a caregiver who can help with medications, well-being checks and really assess the situation in collaboration with your brother will likely give you the best coverage. I think it would be important to show support for your brother by going to visit, for starters you can see for your own eyes what is happening, the two of you can have a real- heart to heart about what to do next and you might be able to visit assisted living facilities or interview caregivers together.