I'd find a mortgage broker who understands your strategy well enough to advise on products designed to help you scale. 

While I realize that if a person really wants to find out who owns the LLC, they ultimately can with some personal effort or potentially the courts, I didn’t want people to be able to easily look up that information online (ie a simple Google search).

Just keep it simple with this...

It’s $50 and super simple.

I understand home designs are pretty expensive, and cannot just be applied to any lot/existing neighborhood.

CA has the AITD  and its a robust  debt instrument that is designed for these transactions.

Preliminary planning and design work are underway, with the project expected to bring significant value to the portfolio and contribute to the revitalization of the community.

Simple rule of thumb is demo, then most inner to most outer, meaning: studs, plumbing/electrical, drywall, etc going to outside, then/together with top to bottom.

The standard to apply is quite simple: Did you accurately disclose the character of the down payment funds to the lender in the loan application?

For this particular property, I went to see it today and the conversion appears to be a rather simple project of moving a door.