Cleveland and Dayton can be great markets for high cash flow and low purchase prices, but you need to be careful when navigating the neighborhoods so you're not buying in a D/F class area where no property managers will manage and where you'll never see any positive cash flow.

You’ve already got a solid foundation—understanding market trends, deal structuring, and negotiations will give you a great head start.I would recommend focusing on learning one niche at a time.

First, look for market inefficiencies.

What a great market to be in.  

Are the tenants paying market rents?

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Then they will start the process over.As for finding a market. 

My units are rented but one tenant is month to month and under market.

If so, I would appreciate hearing your thoughts and experiences regarding the local market, investment opportunities, and overall outlook for the area

Quote from @Bud Meacham: The market is very competative in California.