I will say I am a wholesaler however I work remotely in the nashville market.

An ADU could rent for an additional $1,200–$2,000/month, depending on the local market, potentially doubling the property's cash flow.

Real estate is always evolving, and what works in one market might not work in another.

Every market can be invested in successfully.

I would rather invest in safe markets that produce a good return, then I can use that income to pay for a vacation anywhere in the world.I'm very pessimistic about the STR market in Hawaii.

When you charge under market rent, the IRS deems that you do not have a profit motive and, therefore, disallows all rental expenses. 

Those that own it can be harder to sell as the cash flow from the business will cover the debt service for the business, but not for the real estate.Example: I had a very high-end assisted living facility on the market. 

Its just thinking outside the box in this new market. 

Hi Max, I can speak about the Columbus Ohio market (as this is the market I specialize in) but yes, there is strong competition here and there are obviously some cash buyers and they will always have a slight advantage.

It is not an exact science, and can be subjective to the market.