I have used this method in the past and 90% of time has worked, perhaps I was just lucky, I'm not an attorney but based my thoughts on common sense and what I have read. 

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Obviously tough to give advice based on minimal info and no info on your personal situation.

You might as well go with a big outfit such as Buildium or Doorloop.Had the accounting portion been included in the base annual subscription price I might have stuck with it.

Hi @Robert Spiegel, My answer to this would truly be based on your Lease Agreement. 1.

Or a seller finance calculator showing the monthly payment based on negotiated price, interest rate, down payment, etc.

Just because you disagree with the conclusion that most people come up with after visiting dogs bite.org does not make it "fake news" or propagandist. 

We are based in NYC but are considering (as of now) locations outside of NY but within a 300 mile radius. 

Based on this some elements of my REI strategy are going to need to be adapted!

If that's the case, you should be able to rate/term refinance at ~75% LTV with a DSCR loan, and with some interest-only basis, your payment will go to ~$850 (based on ROUGH pricing TODAY).