EC I'm in the Jacksonville area and I have 2 very high recommendations for a coach.
Rick Wilkins, former Chicago Cub catcher who was one of 2 guys who caught Maddux's first Cy, he has coached my son for right at a decade (PM me I'll give you his number...he may know something about lefties..hes caught Randy Johnson and Jamie Moyer.
Bob Shepherd, pitching coach for UNF, he does lessons but he isn't cheap..but he is well worth it, he's worked with my son since he's been at UNF (PM me I'll give you his number too..or you can get it off of UNF's site).
Both have serious connections, Rick has a very solid Travel squad (18 and under and I think 13-15 Travel) that usually participates in the World Wood Bat Championships in Atlanta and the Sunshine State games here in state..as well as a few of the Perfect Game events (Ft Meyers for example).
Stevens site has the list of NPA certified guys also..I don't think we have any around here though.