Homeowners have all kinds of rights when the developer reneges on responsibility.
The behavior in your description sounds egregious enough so that there may possibly be legal relief available for both individual homeowners and for board members, depending on various facts and contingencies. This may be bigger than you are. Also, every state has statutes covering developer responsibilities and you might want to become aware of them before walking in an attorney's door. In this case, the statutes begin at Fla. Stat. 718.101 and go on in novella length.