I ran BP rental program from the tools section.

REIrail is a good tool for you?

I am semi handy and have too many tools.

Find a good inspector that is trusted by professionals in your area and get a good pulse on the effective life of your big ticket items (Roof, HVAC, HW heater, etc.) and calculate out how much each will cost to replace, then do the math backwards for what you need to put aside for CAPex and maintenance. 

I don't think I should count the missed principal payments as cash flow because that is in effect reducing my equity in my property, but what about the interest I would not be paying for those two months?

The issue is that he will be effectively "removed" from CONUS and not able to put hands on anything while gone.

However, in the other 49 states, and the other countries that have been using Offset mortgages for decades it's an incredible tool! 

I was looking at a house for sale that needs a lot of work writing notes about each room and repairs needed on a piece of paper. Is there software or an app that you use where i could plug in this information and walk...

This thread showcases the power of a good relationship with local lenders, and the SNOWBALL affect that follows if you use your Legos effectively. 

.- The one thing by Gary Keller (How to simplifiy and prioritise your time and efforts)- Pitch Anything by Oren Klaff (How to Pitch and sell effectively)- The power of habit by Charles Duhigg- Never Split the difference by Chris Voss (FBI based negotiation)Just a few alternate books that will also help you In your multifamily journey.