Bankers are known for pouring cold water on big ideas. In that vein, a panel of speakers at a Florida International Bankers Association conference Wednesday targeted the wishful thinking about U.S. business in a post-embargo Cuba.

They don't expect Miami brokers to be selling luxury beachfront getaways near Havana to their wealthy clients anytime soon.

Pushing against the hype that has popped since January when the Obama administration announced landmark changes in U.S.-Cuba relations, several experts in banking compliance sounded a sober note about how quickly to expect unfettered financial transactions between Cuba and the United States.