But not without fleshing out some more details. 

I like the idea of them wanting to turn it into a home they can stay in long term.Is it a property where the lawn is pretty nice and this will leave a big dead spot?

IMHO - this is DEAD wrong.As I mentioned earlier, I am a faithful follower of Robert Kiyosaki and his methods.

(Low VOC Caulk only)(5) No loud music, use earpods only.(6) No personal use of toilet or sinks or tubs in unit.(7) Pour no solids or liquids down toilets, sinks or tubs.(8) Unit must be broom clean at end of job.It's possible trim and doors will last twice as long as wall paint.It's possible painters charge about the same for the trim and doors as the walls.Some painters spray, some brush some roller-- when painting tell adjoining units to close windows ahead of time to prevent dead birds, fish, other pets (or babies)--some primers (and cabinet paint) can be highly toxic and are not low VOC.Good Luck!

If I fully retire, you know that I am dead. 

I am willing to work a dead end there until I can get myself running.

@Adam Hershman  is dead on.

Our solution, we have the super replacing all the batteries every 6 months, dead or not. 

I have talked to my kids many times to continue renting out the properties "don't sell the properties and blow it on an expensive vacation or buy Ferraris" but If I'm dead, and they spend it all, I can't help them then.

If you are dead set on investing close to you, can you expand your search area to an hour radius?