I find single ADUs are mostly being added by people with minimal RE investment experience often without a clue as to the value that will be added by the adu addition.  

Plenty of people do have 10-20 unit and work thru it, you just need to think it thru and have a plan if you don't want to do all the work. 

Social engineering is everywhere, and some people are really good at making you believe what they want you to believe.

Check out howmoneywalks.com and see where people are moving to. 5.

Beautiful thing about RE is there is plenty of people out there and you can find the right fir for what you need as the seller

While most of the people are pretty good and probably have a thankless job, there are definitely some with the good ole boy network and very political. 

It’s always great to hear from people who are thinking long-term.

Heating costs go up in winter, as does electricity due to the reduced natural light and more people indoors.

You will find that people are successful in every market you mentioned but depending on your cash position, a successful rental in one location or the other might not be as ideal for you. 

Which means to me that Zillow is cracking down on people hunting for arbitrage on its platform.Consider that, and other potential barriers, when assessing your marketing tools.