Robertson paid $1.095 million for Unit #1605 in Sept. 2005.
Dr. Ostreich is an obstetrician-gynecologist at Boca Raton Community Hospital.
He received his M.D. from Wayne State University.
Condo sales in Boca Raton dropped 31 percent in 2007. The median sales price also dropped $55,000, from $400,000 in 2006 to $345,000 in 2007.
The 16-story Sea Ranch Club of Boca was built in 1981. Sales in the development rose 60 percent in 2007. The median sales price, however, dropped 10.4 percent, from $790,000 in 2006 to $707,500 in 2007.
Address: 4001 North Ocean Boulevard, Unit: 1605
Buyer(s): Leonard Ostreich and Ellen Ostreich
Seller(s): Robert B Richardson (Individually and as Trustee) and Robert B Richardson (Declaration of Trust)
Sale date: Jul. 3, 2008