She'll be under the social worker from the hospital discharge unit (if it's like our local ones). They are the ones that do the review about what happens next & this MUST be done before she leaves the hub. I made sure that Dad's SW from the hospital came out to see us well before the review date because I didn't want them to say "oh he needs full time care" on a Thursday afternoon and that they were withdrawing the care on the Friday. Which is exactly what happened until I put my foot down. Unfortunately / fortunately, with Dad insisting on going into a home, she was resolved of her involvement and once that happens you don't get them back. We are now 10 weeks into a 12 week wait for another social worker to be assigned. It's a moot point now with everything else that's gone on but maybe that's the idea (that's me being cynical of the NHS in general at the moment, not their fault).
With home research, that I can definitely help you on. There are so many questions I wished I'd asked and none of them covered on the advice that I found anywhere! "Yes we've had people who are *insert variety of conditions" doesn't mean they have proper experience of it. Go back at least twice if not more. One to get a feel, another to ask specific questions, another with the proposed resident. Obviously you'll want to know specifically about challenging behaviour although often people are different with their own family as you say. What facilities do they have for end of life? What functions can they perform in situ (things like prescribing antibiotics quickly, IV administration, etc). How does their buzzer system work (and listen out for it and how long it is ringing for!) How will they identify & incorporate cultural preferences? What is their protocol if someone needs to go to hospital in an emergency (as in do they accompany or just leave them to it)? Definitely see a room and try and have a look in other rooms as you go past in the corridors. In your MIL specific case, the SW should be able to provide you with a list of suitable homes that would meet her needs but until she's had a proper psyche assessment they won't know what they're dealing with. The hub might be able to refer her to the OPMH team and the SW definitely can... if you can find out who they are!