Renting rooms or finding a place with a separate unit that already exists or could easily be created is a great way to earn extra cash flow and live for free. 

Don't accept existing tenants without seeing the past 20 months cashed checks as soooo many took covid claims not to pay and you will have the cost of evicting them.

Looking for suggestions on how to refi on a SFH, which is on a LLC, no existing mortgage.

There are a lot of options and I think this community is really great for getting a clear idea of all the creative options that exist that sometimes don't even come to mind until you put it out there!

Aside from verification of existing license status in the state of operation, what other means do you advise a GC be vetted before signing a contract for work? 

We are closing a deal in Dayton, Ohio in 2 weeks and contractually are obligated to allow the existing tenants to continue occupancy for at least 60 days. 

Ideally you also took photos before they moved in to avoid them claiming the damage was pre-existing. 

I familiar with the process but how would it differ from a regular BRRR on an existing property?

Based on the information you provided you may be able to squeeze in a 2nd ADU due to it being an existing multi-family address.

Do you think it could be in that area of Mexico it does not exist a home inspector as a profesion?