But be sure to ask your accountant even if it’s just the local H&R Block guy because it’s probably all a tax write off.

I can say that it was significantly painful for many. 

I am satisfied with the cash flow but managing remotely feels like a pain at the same time 1031 exchange doesn't seem feasible due to the limitation of time.Is selling and investing in RE mutual fund a better option?

I own a duplex 3 blocks away. 

You can save 300 or so a month for reserves and still cashflow 200+ a month.If you realize the management/process is too complicated or a pain, or no one wants to rent your specific home, you can always pivot and sell the home then. 

I'd just never heard they had a mechanism for doing so. its not the links that ding you, its then the calendar blocked for that booking. but the same could be said for blocking from a VRBO booking. they want all your bookings on their platform because that is how they make their money.Correct, if Airbnb sees your calendar is blocked with something other than a booking on their platform it will drop you in the search rankings. 

Obviously this will be a pain if you operate in multiple markets, but it is what it is.

Listen to their pain points and see if they'd be willing for you to help them out with those pain points. 

I hear that law is causing a lot of pain for underfunded buildings. 

Credit markets are tough right now.That rehab paragraph was a VERY tall order, which I think is why most folks are doing rehab loans with the hard money loan guys charging 13%+ and 3 points... 3 points and 13% is painful, but LESS painful than trying to check all those boxes laid out in the previous paragraph.