For context I have a tenant who has been in the property for close to 10 years.

That includes property taxes, insurance, the cost of maintenance and labor etc.

Keeping all properties occupied 24/7 is crucial.

What are the best areas in Birmingham to flip properties?

Something basic and simple, shows a property, the numbers, the potential return, how to cash out investors, how to document taxable spending etc.  

A feature that our Pro Members love is the fact that they can manage of all their rental properties for free using RentRedi.

I could see this fit into several categories of 'real property trades or businesses.'

For example the HA will inspect the property every year to make sure it is up to standards. 

Are you primarily looking for cash-flowing properties, distressed deals, or value-add opportunities?

NJ is a pretty big state I'd argue that instead of going to Cleveland you can try out low cost markets closer to home for a similar client base, similar price point and if worse comes to worse you can go fix the property or at least put eyes on it.