This is simple.

That's the simple reality of it.

Pretty simple when we have this happen. 

I’ve installed DIY split systems myself.

Quote from @Ryan Dunner: It's very simple math.

For argument's sake, and to keep the math simple, let's say you have $1 Million in ETF's or some other safe-ish, well-diversified assets.Step 1:  Take out an SBLOC (Security backed line of credit) on said portfolio. 

Not exactly sure where to look for this and have done some googling and asking around but don't have a clear answer for how folks have managed keeping the books clean and everything paid on time in a simple manner!

I do not think it will be nearly as simple as a "drop" or "crash" of any kind.

Someone self-managing and DIYing the design/furnishing has the potential to see the higher end of the return assuming they are a good operator; while someone who outsources the design/furnishing and management will of course see the lower end of the return as they aren't putting nearly the same amount of time into it. 

Just because you add an ADU doesn’t mean it’s going to add enough value to recapture that $300K.If it sounds slightly out of your comfort zone a simple conversation can be extremely impactful Thats where breaking down the payment management tools, local experts on small repairs, credit and background checks for renters, all comes into play.