Without appreciation, your entire return is cash flow, and buying at a 6 cap with little to no real upside, means you will be making 6% on the deal.  

Take your time to thoroughly understand the opportunity and don't hesitate to seek advice from experienced professionals in real estate investment and mobile home park operations.

However I read books about real estate and thought that when I come to the USA, I'll start building my real estate portfolio, so here I am.I read several real estate books in the past, but now started to explore more while I'm in the USA.

I would recommend consulting with a property manager and real estate agent for your search. 

This, however, changes not only from county to county but also by neighborhood, zip code, school district, etc.Another change we are witnessing in real-time is increased seller’s concessions, which can go towards financing closing costs or buying down the interest rate.

Augusta is a booming real estate market How did you find this deal and how did you negotiate it?

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

The easiest way would be to get a real estate license. 

I’ve been around real estate for a while now and I can say with firsthand knowledge his program is like nothing I’ve ever seen.

There are a lot of tax benefits not to do that or to wait until you're done with owner occupying all together.