Crazy Grandma

I have a Grandmother, who we call Oma. Oma is a nice lady I guess, you have to say that right? My Oma and Opa were always harsh people. Both were extremely headstrong and soemtimes oblivious to the right thing to do.
My Oma is now in a nursing home since Opa passed away. They were living at a cottage in Three Lakes,WI. I have been going to that cottage since I was a baby. I spent all my summers there until I was about eleven. My family and I continue to pay the bills for the cottage so we are able to use it.
It was stated my Omas power of attorney that whenever someone visits the cottage Oma needs to be there. The problem here is that she is old. We love her, but she is scared of everything and wants everyone home by eight o clock, and that doesn't happen wehn you are on vacation. We have been saying Oma has Alsiemers for awhile now and just recently the nursing home said she was repeating herself and she needed tests.
The tests haven't come back yet but why do we even need to call it alsheimers. She is old, old people start to lose it. I hate how there is so much of a concern to title it. She doesn't want to leave her home, her power of attorney is as nuts as she is, and now becasue they didn't sign the house over we might lose it. There is reason to deem it as alseihmers becasue then they charge you more for care and then they will want to sell your assets. if crazy grandma wouldn't have been so stubborn we might not have lost the cottage if it were signed over earlier.