KC, good job so far with all of this today!!

I would convey what your friends suggested through your actions, not your words. Just direct him to your attorney and don't engage. Like "Pls contact atty for any requests," and I'd just ignore the stimulus check comment.

Definitely take the weekend off for you - he can get his stuff another time, he has lived this long without it.
If he needs xyz documents, he can get them himself.