Hi S.-
While I'm not in your shoes yet, I remember when my mother was going through this with my grandmother about 10 years ago. My mother and uncle did the same thing you are doing...they took her to all of the possible facilities and let her choose. Having lived in her home for 50+ years, nothing quite measured up. So once she found one that she seemed the most happy with, my mother and uncle went ahead and put a deposit down and started the process for her. Two things worked to their advantage with this, one my grandmother would NEVER let money go to waste so the idea of them losing their deposit if she changed her mind was out of the question. Also, once it was "a done deal" in my Grandmother's eyes she moved on to getting the house ready to move and never looked back.
Good luck I'm sure it will all work out in the end,
K.