The simple fix is to flip the model, trade money for time.

The jobless rate in the Austin-Round Rock metro was 11.4% in May 2020 compared to 2.4% a year earlier:This chart of passenger traffic at Austin-Bergstrom International Airport drives home rapidly and severely the Austin area economy changed:It is looking more and more likely that Tesla will break ground this year on its newest 4-5 million square foot “Gigafactory” at site in SE Austin to manufacture it’s new Cybertruck and Model Y.

I'm working on setting up a mobile home flipping business here in the Colorado Springs area--modeling it after a friend that's doing a very successful job in the Phoenix market.

 I have personally seen cameras on model homes here in Texas (in plain sight, not hidden) but I would double check with someone about California to be sure. 

I know there people selling models but I would like to understand the process and think that doing it myself will help me very much.As you can see, guys, on acquisition year (0):- Price as advertised- 30% down payment- GEI (Gross Estimated Income) is as advertised.

It's just probably not realistic for you do a house hack under that model unless you move to NH where prices are more amenable than MA. 

That's my entire business model. 

If you have $2 million in equity and you want to purchase a $1 million home then your building that much equity is what you worked for.If you don't have a large amount of equity then there are a lot of your own personal factors you need to consider, but my personal business model is to move forward in one direction and not move one step forward and two steps back.

Real Estate Development is a fantastic space and a great business model especially right now with such limited inventory.

A couple options could be a flat per unit fee like you mentioned, or perhaps a revenue share model where you get a small percentage based on the number of units that sign up.