Boca Harbour 800 LLC paid $560,000 for the property in June 2003.
The 5,307 square foot home includes 50 feet of waterfront.
Custer is a plaintiff attorney specializing in wrongful death, personal injury and medical malpractice. He runs his own firm in Lake Worth.
He has held several management positions with the Academy of Florida Trial Lawyers.
Originally from Connecticut, Custer earned his B.S. in Applied Mathematics and his M.B.A. from the University of Florida. His J.D. is from Nova Southeastern University in Fort Lauderdale.
Home sales in Boca Raton dropped 26 percent in 2007. The median price also slipped $31,000 from $450,000 to $419,000.
BlockShopper Metrics began keeping track of home sales in South Florida in 2001.
Address: 800 Northeast 70th Street
Buyer(s): Boca Harbour 800 Llc
Seller(s): Sei Ja Lee and Chang Gil Lee
Sale date: Jun. 19, 2003