Geez, I didn't know they were that limited in FL. Here in Naples area alone there is Crystal Lakes RV Park, Pelican Lakes RV Park, Silver Lakes Golf & RV Resort, Naples Motorcoach Resort, Everglades Isle Motorcoach Resort (Everglades City) and Outdoor Resorts of America (Chokoloskee Island)- probably some 2000 privately owned RV sites. Have also owned lots on the east coast of FL. Thousands of private lots in RV resort in just the Vero Beach to Stuart area.
Best way to effectively use your time, IMO, is to come down to FL and wander the various areas of the state for a season. Helps you determine whether or not you want the cooler climate in N FL (The Great Outdoors RV Resort, for example) or the windier ocean front parks on the east coast or the Gulf breeze parks on the Gulf side. In addition to gauging your climate preferences, you'll get a feel for the parks. Some of the parks mentioned above are not only upscale as far as the parks and amenities are concerned but also as far as the ownership. Others are friendly to an extreme. Others are fisherman's paradise and some have social activities that can keep you occupied 24/7.
While experiencing the parks over a week or two stay, you will not only find out if the park is 'for you' but you'll be able to explore their internal bulletin boards where you will find most of the "For Sale" activity. Listing the lots in the above parks, anyway, on CraigsList or other internet sites is generally not necessary. The internal boards and referrals to prior renters is generally enough to get a lot sold and some parks even have on site real estate agencies.
You won't be able to beat the onsite experience. In addition to all the above reasons, if you do see a specific lot or two, being at the park for a week or two will allow you to find out what's good about that particular lot location vs another - too close to the pool, too far away, too much afternoon sun, not enough, nosy or messy neighbors etc. etc.
JMO
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