Then you need to materially participate in the activity, here are the tests to meet MP: https://www.investopedia.com/terms/m/material-participation-...I recommend tracking your hourly diligently in a material participation time log.

I don't love the programs, but anyone who spends the money can succeed if the network and do all the course work, even the bad programs just have replicated material.

The costs involved are about $100.000 all in (permits, engineering, architects labor , materials ) - I’m thinking that would be a better long term Investment than another SFH . 

In this case, the material cost AND install costs will vary, so having an idea before you even meet the contractor is important.  

Remember, this was a long time before we had use of the internet or anything else we think of as “technology” today1.

I am assuming you would be paying for materials and replacement appliances, etc... so $1000 per month for labor to take care of 5 mobile homes should be seriously looked at down the road.

Zoning, subcontractors, mother nature, P/I during construction and rent up, your loan doesn't get "fixed" until after construction, material inflation, etc, etc, etc.You have taken most of the risk off the table with family financing and family construction. 

Some mentees will act as a bloodhound for the mentor, knocking on doors, driving for dollars, scouring the internet, making cold calls, or performing other services that help the mentor find new deals.

The materials are outstanding and my understanding pre covid the networking and in person classes where very beneficial .

That it has a strong "base case" cash flow from the house-hack, and that it has multiple avenues for material upside, combinining live in flip and house-hack concepts.