One of the ones we did, the cabin had an upside down garbage can dug into the yard for a septic system.   

These types of places typically don't use alot of technology or have great systems, making it easy from a management perspective to turn things around. 

You must have good systems. 

Once you're ready for the next purchase, you will have experience, systems, and the confidence to tackle a bigger project like a BRRRR.

I have read mixed reviews on investing in this market due to pro tenant system, high vacancy and very slow price appreciation.

Though I am a small time landlord at present, I would like to develop a system for this move-out business.  

Maybe one day I can sell this system, but right now is for my use and under testing.

Who is going to change the air filters in the HVAC system or mow the lawn?

Once I have a strong system set up, I don't want to dedicate too much time to real estate, though.It's also important to note that I'm a US citizen who wants to invest in US real estate, but I live abroad.

This includes operating your heating and air-conditioning system as appropriate to reduce humidity, using appropriate ventilation, limiting evaporation of water, promptly removing any visible mold, and immediately reporting to us any leaks or other water intrusion into your apartment or any visible mold that you cannot remove.