I am hoping to move my mom into an assisted living facility (AL) by Feb. 1 after a geriatrician told me that she should no longer be living by herself. I have researched and visited six facilities and have finally decided on the one that I think would be best for my mom. My mom has moderate dementia and she will be fully able to grasp the drastic change to her life (she was living independently until Dec. 31). How far in advance should I inform her that she will be moving into AL? The subject is not open to "discussion" as she will only say "No" but I don't want to give her too much time to worry about this upcoming change.