Question about sinking of Hovnanian's "Lady Anna"

Very little detailed help ... but

August 14, 1992 100 miles SE of Cape May, NJ in 48' to 695' of water.

Google knows way more...........

It's probably not there any more. You know big sport fish yachts can travel for miles under water getting their transoms ripped off

I'm actually friends with the nephiew. I'll see if he can get the info.

In the early 90's, the world's then largest sportfish yacht, 121' Lady Anna (Denison Yachts) sank off New Jersey coast. The insurers regarded the sinking with such suspicion that they sent a robotic explorer to survey the wreck. They then threatened to raise the wreck to confirm their suspicions.
Not much info. Sounds like it is very deep
http://www.yachtforums.com/forums/general-sportfish-discussion/5122-worlds-largest-sportfish.html

DONJON MARINE of hillside n j attempted to raise her for the ins co.

Contact them they may be able to help you.