This is a tax status designation, and you need to have a proven credible log showing a minimum of 750 hour of ACTIVE management of properties.

I have been trying to confirm what the rent for that would be if I were to try and rent that out to a section 8 family. 

Meaning, you can get a real estate broker to be the designated agent/broker for the business but you do in fact need someone with this (more than likely, just with your states laws)So, first things first, decide if you are going to manage properties for other people legally or not. 

Cost overruns suck but this isn’t a bad situation to be in once you can confirm rent rates.

A JADU cannot be legally rented out as a separate unit without owner occupancy regardless of address designation.  

If everyone has carpet and vinyl flooring, then a laminate wood upgrade could provide that finishing touch that is better than the others without a major price increase to you.This all becomes a happy balance between design and budget and that takes experience.

In case you are wondering, and I'd be surprised if you are, I was a Project Manager for large design and construction projects in the commercial world and the utility industry. 

I confirmed that anything left was abandoned and we could dispose of it.

Then I would ask for them to have their Insurance agent confirm in writing that the policy covers roofing. 

That leaves Roth IRAs, but they cap how much you can invest, and you still are forced to part with your money for decades.I'd far rather put as much of my money in an appropriately designed, high cash value, whole life insurance policy, borrow out from the policy and buy real estate.