As a former Floridian, I can contribute to this question....
Since Florida is surrounded by water on the Gulf of Mexico, the Atlantic Ocean, and we have so many islands all the way down to the Keys, you probably should state your preferences as regards to lifestyle and climate.
For example, if you prefer a year-round warm weather, you'd be better off going all the way down to South Florida. Because in North Florida, we have changes in climate and temperature. One of the most amusing things we see are people who come to Florida dressed in summer clothes only to find themselves freezing in the winter time. Yes, even in Orlando, we've had cold weather that go down to the teens and twenties.
So first order of business: WHERE in Florida do you want to live?
What amenities would you like to have?
If you're a senior citizen, do you want to be in retirement communities?
After you've decided on what you want, then we can certainly refer you to realtors who are experienced and knowledgeable about waterfront properties and the people who built them. And don't forget, we have lakes and rivers and causewaus too....So you have a lot to choose from.