Concerned about elderly prospective tenant

[Helen Jo Z.]

A nice lady in her early 80's wants to rent a ranch-style apartment.  She can afford it, and though there isn't any immediate family nearby she does have cousins and nieces and nephews that live close.  She's sold her house and wants to stay in the same small town.  She drives, and she is in early stages of Parkinson's.  She wants to maintain her independence.

My concern is that if she were my mom (and we just moved my mom from a house to a subsidized apartment last year) I would want her in some sort of assisted living or at least where a trained medical person could easily check on her.

Am I being too much of a worry-wart, does anyone else have a similar experience that can offer some advice?  Thanks.