But ABNB felt so 'authoritarian' (once again for lack of a better word)....including stuff like removing my SuperHost status for a mistake of their own and not reinstating it once I proved them wrong. 

That could be thousands of dollars, and you might not even close, so they just wasted several grand for no reason.

Only wasted time and many prospective buyers in the mean time. 

I just don't want to waste my realtors time with backing out on 2 deals in 1 monthmaybe I am missing something but why two closing's? 

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

Also in my experience it was a waste of time to send letters or any kind of marketing.

Your property management rate should be higher—there aren’t many options in the Metro East, and the good ones tend to be expensive.You mentioned that he’s already okay with you removing the tenant or adjusting rent if needed.

Hey Edward just make sure you check the STR zoning before you waste time looking at properties.

There are also removable barrier fences and alarms that people use instead of permanent barrier fences. 

They have no way to force removal, other than to pay off the loan on a home they no longer own.