Alternatively, you could install energy-efficient fixtures and appliances to help keep utility costs down for both units.

Alternatively, the idea of finding high network individuals to invest as equity partners also is perplexing.

Bank won't give me the amount to build both units off the bat, and I'm searching for an alternative way to finance the ADU until I can get renters in there and refinance the bond.Any suggestions would help!

There's now a competing bill in Colorado about property taxation of short-term rentals. 
The original bill, talked about here, would quadruple the property taxes on any home operated as an STR for 90 days or more in ...

Also depends on what other investment opportunities you have to just invest the money you're getting.There's an argument to have some houses free and clear and a few with high leverage... safer. 

Alternative.

@Michael Moreno When it comes to self directed accounts that allow for alternative asset investing (not all do) it is important to be aware of prohibited transactions and disqualified persons. 

If after that deduction, and all other deductions you still have cash flow, which is unlikely, it is a candidate for hold however based on your description of the handy work I would guess it to be a maintenance pig that you would be safer to unload now and move on to other endeavors that will have a better chance of being positive cash flow. 

This way instead of filing Schedule C for the LLC it will file it's own tax return separate from yours and will issue K1 for both yourself and your spouse.An alternative to that is you can hire your spouse to work for you and pay him salary.

Or is it safer to stay away from a potential good deal because of the inherited tenants?