Account Closed - Let me solve all of your problems with 2 words: Host Financial.

or have no clue? 

Partnering  seems to solve the skin in the game...

Strategies, tax issues, legal issues, problem-solving, etc. 

Problem solved at that point.Regarding the owner -- the key is going to be tracking the probate flow of the process. 

It might cost you more, but they should be skilled with solving these headaches. 

I try not to solve problems before they happen, so unless you've had customers complain about not finding their supplies, I wouldn't try to solve this problem by putting it all in plain view, I'd simply distribute it throughout the house like it should be ( as you mentioned, everything in its useable location )But hey, if it saves you time to put it one location, why not.

I'm very fond of sponsor-centric projects and alignment around solving actual problems instead of optimizing for early exits, but I recognize those who have amassed a lot of wealth thinking about the world in a different fashion and demanding that founders move to their back yard. 

However, without the proper inspection, I feel I just can’t really project my numbers as I have no clue what to expect (having surprises down the line like replacing all the plumbing, electric, termites, mold, etc).

If you can solve their problem you are going to win the deal.