Jordon D. Keltz has listed for sale a four-bedroom, five-bath condo at 3720 S. Ocean Blvd. in Highland Beach for $2.3 million.

Keltz paid $1.95 million for the 4,500-square-foot Unit #902 in March 2006. It is part of the nine-story Toscana condominium development, which was built in 2001. Vincent Morea of Mizner Grande Realty is the agent for the listing.

Keltz is the chief executive officer at Seniors For Living, a New York-based provider of a free service that features senior housing options. He formerly served as chief executive officer at ClassesUSA.com, an online higher-education portal headquartered in New York.

He has a B.S. degree in political science from Northeastern University.

According to BlockShopper.com, there have been 133 condo sales in Highland Beach during the past 12 months, with a median sales price of $372,500.

Address: 3720 S. Ocean Boulevard, Unit: 902