Readers should seek professional advice.

But I would be sure to look into that & speak to a tax professional up there before dumping too much time into research.

I personally think there is just not enough comps yet to show the true value of ADU's.

True.

Matt Scott, Incite Venture Capital and his team can be summarized as follows: over priced, non responsive, non professional agreement breaking, chip on their shoulder and otherwise a bad investment.

I have a few rentals with section 8, and they are professionally managed.

It's important to run your own comps and go out to the property with a contractor so that you can get an idea of true renovation costs. 

Quote from @Robert Rixer: With on market deals like this, there are two scenarios: 1) you see something that no one else sees OR 2) everyone else sees something you don't That is true

Having said that, since you're a newbie my strong suggestion is to go thru a professional initially.  

Readers should seek professional advice.