One other thing, should you help them move, or have someone go in to help take care of them, REMOVE ALL SMALL, EXPENSIVE OBJECTS AND PUT IN A SAFE DEPOSIT BOX. I had 2 old friends who had housekeepers come in, and one of them showed me a mangled gold ring with the ruby "gone". She thought it must have caught in something while she was wearing it, but other club members and I knew she hadn't worn it for a long time. We talked her into giving her more valuable jewelry to her kids.
Personally, about the only group of people I'd ever hand my house keys to are our Mennonites, male or female, should they decide to work as housekeepers.