I'm hopeful we can find more productive ways with less red tape in the future outside of LIHTC leveraging technology since standard construction really could use an overhaul.  

That’s less about the numbers and more about developing a niche and understanding your product.

We have a commercial 30Y fixed DSCR product that may work for you.

And there is a lot of superior options out there in both product and methodology. 

I would suggest going to the find a lender tab here on bigger pockets to find a local lender who has the same products. 

These companies selling products tend to drain agents dry at these conventions selling every do dad that is supposed to give them an edge over everybody else.

What was your investment and what type of return did they offer you.I have no problem people losing money if they were expecting excessive returns on high risk products.

LexisNexis has a product called "Accurint".

"Question: have you ever filled out a spreadsheet of cost and lifespan of each product of a property?

A 1200sqft detached ADU would prob consume 25-30% the rate of the main house making it about approx 15% lacking in producing enough power for equal production to usage on the entire property.