Alec Hutchinson (Boca, anything you want to do) Marcello Pavao (Jupiter, up to helitrox) are two people I'd recommend a family member to in the Broward/Palm Beach area.
Thanks Ken! I second Ken's recommendation for Marcelo, who I've worked with in the past - great guy and professional instructor.
Pretty much everything I do revolves around deep wreck diving, both OC and closed circuit, so if you have any questions feel free to post them here or reach out directly.
-Alec