There is sort of a driveway on one side but I don't believe it is wide enough to fit two cars, so the plan was to assign that to one unit. 

There are a wide spectrum of companies that would fit that description.Most local residential real estate investor companies are relatively small (in terms of the number of employees, not assets or profits) and they aren't going to care very much about which specific area you majored in.

If you are taking out for taxes, management fees, repairs, vacancy rates, Etc, you will be going in with eyes wide open. 

I've been given some wide ranges from like 2k-3600 a year.

Was originally a single wide, (1984), that the original owners added on about 900 square feet, on a concrete slab.

Purchase price: $25,000 Cash invested: $28,000 956 SF single wide with a 900 SF addition, with large carport and workshop.

I would laser focus you attention on one area, to cast a wide net like that its going to be hard unless you have crazy deep pockets.

When the finance spigot is wide open financial catastrophe usually follows.

First of all, the nature of RV parks can vary across a wide spectrum. 

Norfolk is a big city, neighborhood quality varies widely and cap rate varies along with it.