hi Betsntom, have you tried looking into the legal part? I know here in Massachusetts it is hard to get someone into a nursing home, they have to be very advanced in alzheimers, and if they are already living in a assisted living facilty it is illegal to send them somewhere else when the money runs out, even to smaller apartments in the same facilty. Try talking to a ombudsman about it (or social worker)
Don't think of yourself as being mean for thinking of taking your mom off of her meds to make the transition better for her, its a brave thing to think about.
But all in all if you do have to move her to a nursing home, to tell you the truth, most people that I know that had to move from a alf to a nursing home like it better, they get more attention, and feel safer.
take care