As long as you buy using market fundamentals and are prepared financially, you should be just fine.

I think it will be hard to judge if it's the SB or the fundamentals of Atlanta.

Maintaining clear lines of communication and setting customer expectations is a fundamental part of any business.

You need a local HVAC guy you can lean on, one who is preferably a fellow property investor and understands your business.You need to learn the basics of every cooling system of every home you self-manage, and that entails a basic familiarity with furnace  fundamentals. 

With regards to the price point, it’s really dependent on your market, seasonality, and your fundamentals (purchase price, rehab costs, etc) to make sure it’s worth your while.

But bottom line just go and buy something using simple fundamentals you've learned to date, and complete that full process end to end from scouting to managing your tenant. 

I have mastered flipping on a fundamental level.

These parameters will help decide what kind of yields you are searching for, which you can use to filter down your list of macro markets.Then I would start by looking at the macro market's fundamentals, that is the population, job and income growth over time.After that, I would look to see what the rents and home prices are and how those are trending as well.I would do a similar analysis, but at the sub-market level for the metro area you are considering investing in.Other metrics that I find valuable to understand are household income, poverty, unemployment, and educational attainment.

Those questions are of course fundamental, but are best addressed in a separate post.

However, absent any economic shock, we can sustain the economic fundamentals because all economic actors are operating on borrowed money.In a simple way, you can think of it like a ponzi scheme, but that is the nature of a debt-centric economy with fiat currency.