Assuming you mean vacation rentals and not full-time-occupancy rentals, you can find some here: http://www.vacationrentals.com/vacation-rentals/Key-West-Florida.html
There are several websites which have details on beach house rentals in Florida. Some of the most popular include VRBO, Perfect Places and Owners Direct.
A very good option would be The Property Management Specialists of Central Florida, Inc. They focus on the management, upkeep, but most importantly they have a large selection of home rentals.
You can find information on houses that you can rent on the website rentals. When you go to the website, you need to enter the city in which you are looking for a house or apartment.
You can find cheap Florida vacation rentals at a website called homeaway.com. They offer you several choices with several different prices to go with them.
Someone can find house rentals in Italy at Homeaway. You can book a hotel from France, Italy, Germany and just about anywhere. This is the best place to find home rentals in Italy.
GoSection8 is the best place to go to find a section 8 house rental. There are other places to find house rentals but not all will be section 8 rentals.
The area in Florida that has the most deals for vacation rentals is Miami Beach.This is because it's the most popular tourist destination in Florida and hotels have to compete with each other.
There are many companies and websites that offer villa rentals in Florida for any holiday. Some of these companies that offer villa rentals are Orland Villa and Holiday Lettings.
Information on vacation rentals by owner in Florida can be found at VRBO, Gulf Coast Rentals, Owner Direct, Cyber Rentals, Home Away and Great Rentals.
To find car rentals for a vacation in Florida you can go to car rental sites such as Enterprise, Hertz, Dollar Rent a Car, Budget, Expedia and Red Tag.
You can contact a realtor in the area of Florida where you want to rent, for the help you seek.