Hi Rubin,
I live in Erie, PA and have a mix of investment properties in the area (Couple Single Family properties in City of Erie, some multifamily in West Millcreek(Just outside the city). It is a pretty good cashflow area. The area has suffered from stagnant population & job growth and gets a lot of negative press due to the amount of snow(it is a lot). I think this is why Erie isn't as saturated as other markets.
That being said - there is a good group of investors in Erie and the cashflow is good. There is a significant amount of Healthcare, Insurance(Erie Insurance) and Manufacturing(Locomotive production at WABTEC). There is some mild appreciation in property values as well. If you're willing to work with low-income properties and some of the headaches that come with it, you can get great cashflow.
I think Erie will continue to cashflow well, but don't expect significant appreciation. If you have any additional questions, feel free to message me.
John