With over 2,400 in sqft, a pool and detached barn, allow your creativity to craft an end product buyers will love.

Take the time to learn all the ins-and-outs of parks, to include filling up spaces, renovating homes, selling homes (along with licensing requirements), carrying paper, crafting the correct leases and notices, establishing the right park rules, proper tenant communication, metering of utilities, and the list goes on...

@Benjamin Morris direct mail is not an exact science but it is a craft.

This is why attorneys fight so hard when crafting PSA's in word doc form on commercial deals.As far as costs there can also be (opportunity cost) for the buyer meaning they put time and assets into purchasing your property over others and if you breach they can be damaged.No legal advice given. 

You could also look at craft beer / spirits if zoning allows

That said, if you tried to dip into my business model after the fact (shame on you for not asking the necessary questions up front before crafting your lease) I'd first start laughing at you for the attempt at extortion, deny the 'opportunity' you're offering me by not agreeing to pay you anything above what's already contracted, then I'd start looking to relocate as soon as it was cost effective. 

In-between the horror stories of terrible business practices & biased wholesalers defending themselves, I was intrigued by the 1-in-1000 that actually honored the craft of making both seller & buyer happy.

Nothing is easy just gotta keep working at your craft. 

Have good paperwork - in most States you can get very evolved lease forms to fill out, stay away from hand crafted (attorney or not)3.)

Your best resource here would be a savvy real estate professional, most helpfully a property manager who knows their craft like a ninja.Get in there and get investing . . . you'll see the magic happen even with a paltry $200/door (or less) and that magic is the very thing that can make waves.