And even says that she has seen and heard them in there. They moved from their retirement community into a house about a week ago. We were hoping that this sense of people coming into the house or my dad letting them in would stop. Well it hasn’t. She now accused him of bringing in a woman through the window. I’m not sure how to confront her on this issue. This started about 2 ½ years ago when she lost sight in one of her eyes and was no longer able to drive and was dependent on my dad to take her everywhere she needed to go. She has kidney issues and has diabetes. She’s been going to a therapist but she thinks she doesn’t need to go see a doctor for dementia. Any suggestions?
I would not talk to her about dementia treatment or testing. I would simply try to get her to her PCP (and if she needs a new one, I'm make it a geriatrician) for a thorough checkup. Write a note to the doctor ahead of the appointment briefly outlining your concerns. If the doctor finds it appropriate he or she can refer Mom to a specialist.
Your Dad sounds as though he has a good head on his shoulders and doing the best he can for Mom.