I'm looking for some consultation from a neutral third party around total building costs.

You shouldn't be paying interest and giving equity in these cases as both parties get equity or ownership for the value provided.Lot of ways to set it up though.

In Texas, this requires a separate addendum, in addition to the third party financing addendum.

Depending on the case, I think there are third party companies that can help with this. 

Whatever you do, don't go blind into Pittsburgh from OOS, don't go without highly credible third-party property management if you do decide to invest here.

The tenant- landlord relationship is obviously very different if we were to become housemates and I can foresee some sticky situations when it comes to the responsibilities of each party. 

When I finally got a job after graduating my MBA and passing my CPA exam my mentality when it came to money was not responsible at all.I saw thousands and thousands go to Uber, jewelry, designer clothes, and parties every month.

The original tenant is liable for the term of the lease unless all parties agree to change it in writing.

But my goal is to retire through real estate investing and I believe the next step would be house hacking a multifamily.The tricky part is that I would like to stay in LA ...and because I'm not working a 9 to 5, I dont think I would qualify for an FHA and a 203K loan.

The tricky part is that there is bound to be a “new normal” after COVID-19 and what is that going to be like?