This house has had more issues than my primary residence, so the expenses have been quite a bit higher than expected.Monthly Mortage: $543Monthly taxes & insurance: $308Average monthly expenses: $328Avg monthly rental income: $1237Monthly cash flow: $90Overall, should I just attribute these to sunk costs and sell them and use the equity elsewhere?

You're right- your points are great- and I'd attribute it to the fact that you are looking in Atlanta.

Statistics generally do not lie.Your mistake is in believing expenses are attributed to the year they are incurred.

I hope that with experience we will be able to analyze deals better, and use the attributes you mentioned to the greatest extent. 

I recently copied and pasted some info for myself which I am now uncertain of it's origin... pretty sure it was a BP blog or possibly off LinkedIn, but when I searched the blog list I couldn't find it, so hopefully I won't be breaking any rules by pasting it here for you (and if the author is out there, forgive me for being unable to attribute the credit to you! 

There's a great saying that I love but I don't know who to attribute it to.  

I attribute it directly to his very bad decision to paint the hardwood floors in 100 year old houses.

Keep in mind even if the cash flow nets to slightly negative, the tax attributes may bring the transaction positive.

It is impractical to think you will understand all of the risks and iterations that come with the many loan attributes.

, with the pro rata portion of the capital gain attributable to the investment period, as opposed to the primary residence period, being taxed at the capital gains rate.