I really do advise you to contact a licensed Realtor to assist you with your property search. There is no fee to you at all - we are all paid, only when a deal closes and our commission comes from the Seller, not the Buyer.
There are some wonderful local Realtors here on Trulia - it's a great place to find one. You only need one - as we all have access to the same properties on the MLS (Multiple Listing System) which for me, covers all of Palm Beach, Broward and Miami-Dade counties.
It is also important that if you are looking for a mortgage to fund this purchase, that you be pre-qualified by a bank or mortgage broker. Again, I'd be happy to give you some names of professionals that I've had good experience with.
I hope this has helped and the very best of luck with your search. If you would like to contact me, feel free to do so.
Villa G Realty, Inc.