and to be blunt - what to ask?

I don't know if there are any pre-arranged funeral plans.
I don't know if he has made a will.

Sometimes he won't go for help when he really needs it, them someone else has to call to pick him up off the floor, etc, gets hospitalized
He hasn't known the kinds of supports that are available, so it has been through some recent experience that this is now in place, sort of.
But I'm trying to keep things going along smoothly
Then I'm scrambling around trying to hold things together and be supportive, etc.
But, it would help if I knew ahead of time whether he has made any of these arrangements
When I see him, he talks about things that he is concerned about (reasonably so - maybe obsessing a bit), then I have to spend time trying to find the answers