A good financial advisor with a lawyers that can walk you through things is essential.

In its operating agreement the LLC ended up having authority over the master lease so I kind of got two for the price of one a property manager that paid me rather than charge me plus the monthly lease payment or essentially the property management ended up costing me nothing. 

Most investors I work with like to stretch out the loan term to maximize cash flow, but if youre concerned with paying more in interest (even though your tenants will essentially be paying the interest) you could certainly look at a shorter loan term, as long as it doesnt cause the property not to cash flow.

Essentially once you qualify for the first refi you qualify indefinitely.

Your brother is essentially paying $300 to cover the mortgage. 

Property management is an essential piece of the business.

With just essential fixes in place?

I was at times doubting if I really need to spend $2000 on external measures but your post as well as several others has led me to believe the external stuff is essential.

If you go by financial metrics you're essentially filtering what you see by someone elses underwriting while disregarding the property itself. 

So having a diverse retirement plan is essential.