If your husbands job is not on the
TN visa list, he may want to try the H1B route if it fits comfortably within a specialized occupation.
Also, be forewarned that jobs in Florida are scarce. I currently reside in South Florida with my hubby and the unemployment rate here is among the highest in the country. We know people here who have been laid off from their jobs of 5 or 10 years because of the current economic crisis which people seem to think is long over. If your hubby has a good job in Toronto, I suggest he keep it and both of you rent or buy a vacation home out here as job wages here are also terrible.
Not meaning to discourage but we've been here over 4 years and experienced first hand how bad things are down here.