They may be a great resource for you to start building connections. 

I'm currently reading David Greene's "BRRRR" book and I will be utilizing my VA Loan as a first home purchase (duplex) for my first home utilizing the VA Loan.

I’ve heard that this neighborhood doesn’t really have any problems from a social worker but outside areas aren’t good. 3/4 units are currently rented at $900 each, renters pay utilities.

Bank financing is very tough for anyone starting out so HML is generally ( unless you use your own cash or cash in your network) the only funding there is.. the goal has to be though moving towards bank financing so you get the best deal possible.. right now I am at 1/2 point and 7% and my bank pays for my appraisals.

Quote from @Joel Oh: Your business must make money day 1.It is so much more difficult to fix the model that is not making money than starting a new business that makes money day 1. 

Does that include utility service to the house, a driveway, septic and well? 

STOP waiting, start DOING!. 

When I checked their reviews, I first started with the negatives ones and they were similar to the ones found on Reddit.

Due to item 1, adding an ADU can require years to start achieving any return (once the accumulated cash flow recovers the initial negative position).4) Adding an ADU is a slow process.

Most likely raising funds from passive investors would utilize a Reg D 506 b or c safe harbor exemption from registration.