AMA is against medical advice. You wouldn't have to convince anyone of anything, if you sign her out AMA.
However, if you sign out AMA, your insurer will very likely decline to pay for any care.
Thanks. I had learned that term in the last 2 months... but I was thinking "American Medical Ass'n" and "huh?"
Looks like we (hopefully) are in a good place with her going to the acute rehab.