I am concern with the high interest rates but even with those I managed to cash flow which is what I am looking for. 

Rents are high compared to property values so you can get good rent flow. 

My opinion for those that live in a high cost of living market is to continue living / renting in that market and invest in a different market that is affordable and provides both cash-flow and appreciation potential.The reason to stay in the HCOL market is because you will be paid(hopefully) a nice large salary.You can take this salary to then 'easily' invest in other markets.NYC is tenant friendly which can be a con for investors.Furthermore, NYC has appreciated historically.

Although the temp is supposed to be 103 to 105 for the highs.  

Don't get me wrong, these come with their own challenges, such as the high minimum investment ($50-100K, although that's also about how much you'll need to buy a rental), and the difficulty in finding reputable sponsors.

I am thinking I will start by targeting Arnold/Imperial and work out from there if necessary, probably west toward Murphy/High Ridge/House Springs before moving south.

Any do's and don'ts would be highly appreciated. 

From my research in Jefferson and Berkeley counties, it seems like Ranson, Shepherdstown, and Martinsburg are doing especially well in terms of jobs and population growth. 

Knowing things like median income for an area,  median rent , population growth, unemployment and investment of companies are some information that id like to research.  

It's helpful for our community to get feedback on these high-priced courses.