Explain that you understand the penalties of trying to go around an agent (you get sued and have to pay them damages) and that you have no interest in going around them. 

As Irena Belkofer stated, it gives them the most incentive to take care of the unit, where as some tenants may figure they don't need to bother as the fee covers all the damage. 

FYI Maryland requires third parties to rely upon a properly executed, witnessed and notarized POA... subject to damages if they refuse.

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.

(No Snowball Effect)2.

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.

About two weeks ago I found a leak in the roof of the rental and it has caused some pretty serious damage to the wall in one of the bedrooms.