Think 2008, what would you rather have a had a 100k house that you are making 20% on from equity pay down but no cash flow.  

But this information alone wouldn't make me think Property A had endemically high operating expenses.

All units seem to pay on-time (Unit A had two late charges shortly after they moved in, but have otherwise paid on time for over a year). 

All of the reality of the horrors of what will unfold next will play out over the next several months and possibly at the expense of several more thousands of dollars coming out of your pocket.Wow, it sounds like you have a had a very bad experience working with management companies.

@Bill Hampton, @Basit Siddiqi, @Ahad Ali Thank you all for your great advises.

Had a had a credit card I would have probably maxed it out, but I don't have credit available.

In the beginning  when the appraisal was requested, lender A had approved, a "Drive by" appraisal.

Arion,check out @Nicholas Aiola or @Ahad Ali They are in New York. 

I do not have new build experience of my own right now, but @Zach Lemaster and his team do.I worked with Zach and his team to buy my first investment property and a had a great experience (see post below).

We have a had rental property for several years, but I want to take this to the next level.