The Biscayne Times has a great article about Aventura, "When Oversight is Overlooked." As far as the inbreeding goes, Biscayne Times reporter Jay Beskin said:
"...the commission exercises direct oversight and control over three municipal positions: the city manager, the city clerk, and the city attorney. None of these positions is answerable to the other. The purpose for this is to ensure there is system of checks and balances in our city, and that accountability rests solely with the commission.
Yet the city clerk, who is married to the manager, may have taken direct orders from him with respect to the allegedly illegal custody of school records. Has the clerk in fact improperly taken direction from the manager?
Not surprisingly, the manager’s son is employed by the city attorney, which is the private law firm of Weiss Serota."