Some cities offer down payment assistant to home buyers.
you may need to qualify based on income and other criteria.
Broward County
http://www.broward.org/Housing/Pages/HomebuyerFirsttimebuyer.aspx
Plantation Florida
http://www.plantation.org/Planning-Zoning/grants.html –
Tamarac Florida
http://www.tamarac.org/index.aspx?NID=443 –
Coconut Creek and also Coral Springs
http://miamihomeprograms.org/program/programdetail.php?id=174 –