I am usually the guy on the ground informing the design and ensuring our general contract (and subs) stay on course.  

My main concern is monitoring the exterior property while the property is vacant.

All you do is input the amount, and the "class code" to designate the property it's charged to.As a matter of fact, I spoke to my wife recently about it.

This was poorly designed from the beginning. i'd be curious to see how this stands up in court, if it ever gets to court.

A chartered accountant is not a designation used in the United States. 

I'd have a big old building with employee's and would designate each employee with 20 owners each. 

Exterior is brick.  1859 sq.

These guys operate just like new car service people -- any maintenance cost that can be avoided for the promised years of zero-cost maintenance is avoided and then the car's a lemon that needs big bucks in neglected maintenance as one after another system fails, exactly as it was designed to.

Now in California is more feasible than ever to build an ADU, With a few companies that offer the 5 steps in-house ( Design, Expedite, Construction, Finance, and Property management) why not do it right from the beginning...

Such plans are designed for owner-only businesses with no full time employees.While it is possible to setup an ERISA 401(k) plan in a company with employees that can be self-directed, it is generally not beneficial to do so.