how much are the "renters" paying for "home care services"?  how is the compensation determined?  does the rental unit have fulltime staff to administer medical services, personal services like cooking and cleaning, help in grooming, help with going to the doctor's office, etc,  how are these services being charged to the renter.  this looks like a way to avoid government regulation of providing care homes services without supervision which could lead to substandard care and abuse.  even in regulated care homes there are many abuses.  what makes you thinks such landlords will not take advantage of the system?  and in the end, not sure if a "renter" will save any more money than a person in a regulated care home.