Annual rentals are moving rather quickly in Cape Coral, I would be more than happy to give you a rental assessment. I would like to take a look at the property in person to give you better assessment.
A seasonally rental will give you a better return for the time it is rented, however keep in mind that new seasonal rentals have to build a book of business and typically take a little more time to become fully booked and maximize the potential return. I would look at your condo docs to make sure that you are allowed to rent it seasonally.
Please feel free to call me to discuss further an get you a honest opinion of what will be best for your situation.
Adolfo "A.D." Diaz