You could also check what Realtors in your market are preferred agents here on BP- they should have at least a little experience with investing and a network built up. 

@Pat Aboukhalen was the agent there sorting it all out for him there after his previous agent missed it - so if you don' already have an investor-friendly agent there that's who I would use. 

An investor-friendly agent will be able to help you locate these areas.

My team and I are investor friendly agents and our investors ourself in Houston as well.

I’m a local agent and investor here in Rochester. 

Always ask your agent!!!

I’ve been wanting to speak with someone about that but I’m not sure who would be the right person to ask ( real estate agent , broker etc) . 

Your deal finder (agent/wholesaler)3.

These can be great for making initial connections and learning about specific markets.Since you're thinking long-term, consider spending some time in your target markets to build relationships with agents, property managers, and contractors.

. :)Also if you look at federal forest ownership maps you will see that Huge areas are checker boarded with private ownership .