While I understand that, my understanding and what our own attorney has confirmed, is that there should be an individual who serves as the guarantor in this type of instance.

The goal is to make money, not own units.  

Story is the owners got old moved in with their kids and their kids had their own home and didn't want to be bothered with the house.

My long-term goal is to build up my own real estate empire to leave my job and spend time doing things I truly love.

If you see comps in the $800k to $850k for the home (no adu) then once you renovate the home - by itself it will be valued like other homes like it that are renovated (likely around $900k ish) Be careful with numbers mentioned and do your own homework of course. 

I work in the tech industry in NYC and currently own two rental properties in Columbia, SC.

Spend some time every day here reading the posts, and ask questions of your own....the more the merrier.

We own a rental in Irvine and do monthly rentals at the moment. 

Thankfully, my wife is 100% on board and she's even learning about house hacking on her own.

That's it.Tenants have occupied nine years, they claim to know more about rights than you, and they are acting as if they own the place.