"patients?" I'm not sure what this means, sorry.
But I'd make sure that any regulations which would apply to you... are checked out first.
For example, if your Mother has a home for the developmentally disabled, you cannot just "take it over"
because you would only be allowed legally, to be a home licensed for 4 people. And you'd be going thru
the same Adminstrative program she did, with a certain amount of hours put in for classes every few yrs.
Licensing can change. Oh and Good luck to you