The estate at 41 Arvida Parkway in Gables Estates is currently the most expensive listing on the market in Miami-Dade County. Located on a primo corner lot abutting Biscayne Bay and a canal, the $54.9 million property has, shall we say, a very sort of unique look to it, and has been on the market for almost a year, listed by the well-known and frankly quite preeminent, for better or worse, The Jills Zeder Group.