@CC: many years ago, when I first met my wife (a registered social worker), her job at the time was "Family Support Coordinator" for the Alzheimer's Society of Calgary. Her role was literally to assist people like you: spouses, children, or other caregivers who have a loved one dealing with dementia and/or Alzheimer's. She left that job over 15 years ago, but I imagine the organization still has people doing the same work. If you're looking for professional assistance from people with actual expertise in this specific area, that's a good place to start.
https://www.alzheimercalgary.ca/find...-with-dementia