That's not what i've seen based on cashflows from a turnkey provider there whom i've compared to other markets across the US.  

It allows you to compare which are more favorable.On your second point, some turn key property providers are excellent, but they are not all the same.

As a financeable asset, it is evaluated like residential: it is appraised by comparable sales.

That's when you need to compare income to expenses and money cost and figure out the cap rate, etc.   

They are cheap to buy (compared to a typical SFR) and produce good cash flow.

As I stated previously the advantage to rentals in Philly that they fill up quick and tenants tend to stay longer compared to the burbs. 

Kept searching all over upper coastal areas of FL, only reason honing down to CC because of the amount of development happening and by the number new properties coming in the market compared to other places whereas most properties in other towns mostly old.

I have contacted 3 banks that have refused to lend on a property because there are no comparable properties in the area and if the appraiser can't appraise it correctly, they can't lend.  

You may want to look up some comp properties in ATL that are similar, see what their cap rates are, see how yours compares and then set the price and do your marketing.

I would be happy to show you some examples of single family (not duplex's) that could give you comparable cash flow and have much better appreciation as it seems you are after.