The first thing I'd ask is, what's the budget? There are full out luxury lots that will sell for $150 - $250k and more, or a patch of sand bur infested ground with questionable hookups for $15 - $25k, and everything in between.
If you can, I'd settle on an area you'd like to be and then start searching and asking questions. Do you want to be on or near the water? In or near a high density population area or out in the middle of no-where? Do you want easy access to the tourist attractions or as far away from them as you can get?
Jay & Peggy Monroe with Dolly
Can't take it with you - don't plan on leaving any behind
2016 Newmar London Aire 4553, Spartan chassis
Wrangler Unlimited toad