Because I am an emotional guy I dug my heels in at this point and I admit that I made a mountain out of what was really a molehill. 

question is hard to answer given that there is certain level of emotional investment also.  

Maybe I am too tied emotionally to the rental property and not analyzing this properly.

This is a numbers based decision and you have to train yourself to look at this without emotion. 

Separate emotion, and be a fact based professional representing your business' interests.

If there are some building that you are emotionally attached to, then sell off the ones that you are not in love with and dump the money into the units that are negative and refinance a smaller loan so your PITI will go down and get you to a positive flow.This part of REI is the easy part... get rid of the boat anchors before they drag you down.

It sounds like you were able to get past the emotion that 99% of people have when looking at the vacation rental market.  

If they stop paying, then the prudent thing to do from a business perspective is to issue a 5-day notice and keep emotion out of the situation. 

If you keep listening to the talking heads you end up making emotional decisions.

I think it's interesting how people let emotions override the math when it comes to owning a home.