I would say pay the taxes.  

I don't mind low cash flow with high appreciation, but that's my specific plan, it doesn't work for everyone.

That will pay off the remaining $360 mortgage and reimburse your rehab and closing costs.

Horror story #2: while selling off one of the Class C Indianapolis properties, buyer asked me to pay replace the sewer line before closing... absolutely not...here's a partial credit (check to written out to contractor from closing proceeds so buyers don't pocket the money) 

I found it far more valuable than the AirDNA one result, albeit you do have to pay for the pricelabs revenue estimator. 

What has your ROI been like if you don't mind sharing?

You should check if the bank feeds work with your bank otherwise, it's a deal breaker unless you don't mind manually doing the data entry.

As those prices fluctuate, there is a builders somewhere putting his feet up waiting to see a market turn more active because the last thing he wants to do is start paying crews to build houses, that could drop in value while he's halfway through the build process and losing equity halfway into the project.

Like in my mind that is truly the last thing on earth that I could imagine to mess up my real estate investment plans with some idiot with a stolen car crashing into your property and escaping and I imagine how you felt when you found out.  

From a $ perspective you get the same amount of appreciation, depreciation, loan pay down, but here you have cashflow and if if a tenant moves out, you are only 50% vacant instead of 100% vacant.- Generally the same logic applies as above.