The best time is to get the property on the market is as soon as possible. In my opinion we have not quite reached a bottom for home prices in most of Florida. So, you can sell it now or wait and sell it for less later. If it is properly priced and marketed professionally and aggresively you can sell your home in any season.
As for rent to own and creative financing as was posted by Jim, I would be very careful. I have yet to meet an agent that has had a rent to own (i.e. lease option or lease purchase) work out. Owner financing could be an option but make sure you are comfortable being a bank which could include demanding late payments and fees and possibly foreclosure, not to mention qualifying the buyer in the first place.