When you have a duplex and tenants on both sides stay for ten years, it almost guarantees that something isn't right.I would study your market and determine the value of your rental, because I bet you are losing money every month.

Quote from @Jonathan Grzeszczyk: I agree that the motivation and problem is the core, but the first question is always where are you going when we come to a win-win agreement for you to sell me your house.

Unless you need those funds right now, with a property manager you have what I describe as a win win.

The Midwest is probably your best bet for a number of reasons.

Partnerships and smart financing made this deal a win!

Best bet is to carefully analyze the zoning maps and regulations or just call the town and ask.

It's like drafting a rookie QB and expecting to win the Super Bowl his rookie year.Based on the tax increase, my assumption is you chose a great appreciating neighborhood and have a similar mentality to me. 

We win as seller is a no show in court10.

Your best bet is probably to get your real estate license and start actively being a real estate professional or buy a STR in your market that you can physically be at on a regular basis. 

I am betting a lot of media is going to be coming out of how under insured people were because to be fully covered was "too expensive".