Mobile Home Park Due Dilligence

[Clay French]

I am looking at a property that is about 7 acres. It currently has a house, 5 1br 1bath cabins and a mobile home on it. We think we could easily fit 10-15 trailers on the property (maybe 20) with out tearing down any of the current structures. It is outside of the city and metropolitan planning commission area and as far as we know, there are no restrictions on the land. Where do we start to make sure we can add these trailers if we do buy the property?