I've heard of three different places called "Shark Condos", but never a "Sharks Ledge/Edge". One shark condo is at 130' on the Enenui side of Molokini backwall. There's another shark condo on the outside edge of Reef's End at Molokini, close to the point. There used to be another set of holes called Shark Condo by another dive op that was on the NW side of Molokini's Center Reef, but that collasped during the big swells of January 2004.
Sharks are very common on the backwall of Molokini and a couple whitetips swam by on my dive yesterday at Reef's End at Molokini. Whitetips are also often sighted inside the crater, although ot as often as on the backwall.
The Enenui point at Molokini is a common spot to see schools of Grey sharks swimming into the current.
Sharks are sometimes sighted on shore dives, but not as often as at Molokini. OTOH, turtles aren't common at Molokini, but are seen on virtually every shore dive in S. Maui.