Trust linked to Boston execs buys waterfront Jupiter home for $16M

Sale marks the second Admirals Cove house tied to Susan Janosky and Larry Hamelsky

Susan Janosky, Larry Hamelsky and 229 Commodore Drive in Jupiter (Getty, Google Maps, LinkedIn, Berkshire Partners)
Susan Janosky, Larry Hamelsky and 229 Commodore Drive in Jupiter (Getty, Google Maps, LinkedIn, Berkshire Partners)

A trust linked to Boston-based executives Susan Janosky and Larry Hamelsky bought a second waterfront home in Jupiter’s Admirals Cove for $16 million.

Records show 130 Waters Edge Realty Trust, with Daniel Carbonneau as trustee, bought the house at 229 Commodore Drive from longtime owner Joan Cramer. 

Carbonneau is a partner at Castle Rock Advisors, a family office affiliated with Boston-based private equity firm Berkshire Partners. He has signed other deeds in Palm Beach County real estate deals, records show. 

The same trust also owns 130 Waters Edge Drive in Admirals Cove, which lists a mailing address at the West Newton, Massachusetts home address of Susan Janosky and Larry Hamelsky, records show. The trust bought the 0.3-acre, 4,700-square-foot home for $5.2 million shortly after it was built in 2021, according to property records.

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Janosky was previously an executive at Cambridge, Massachusetts-based biotech giant Biogen for 22 years, where she was most recently vice president of global supply chain, according to her profile on Sibling Connections. Hamelsky is a managing director with Berkshire Partners, where he works on communications, digital infrastructure, services and industrial investment sectors, the company’s website shows. They both graduated from Harvard Business School programs in 1998, the school’s website shows. 

Cramer and her late husband, Roger Cramer, bought the 0.6-acre Commodore Drive home for $2 million in 1997, records show. Built in 1988, the 6,300-square-foot Commodore Drive house has four bedrooms, five bathrooms, and one half-bathroom. It also includes a pool and a dock, property records show. 

In 1964, Roger Cramer founded Highland Talent Payments in Cleveland, Ohio, a payroll services firm for advertising agencies and brands that work with paid talent, according to its website. He stepped down as CEO in 2002, and died in 2011, according to his obituary. The couple’s son, Ken Cramer, is the firm’s current president.  

Admirals Cove is a gated, boating oriented luxury community. Its properties have attracted titans of industry and other high-profile buyers, including Donald Trump, Jr. and Kimberly Guilfoyle.

Earlier this month, Trump’s ambassador to France and former Dodgers co-owner Jamie McCourt sold her waterfront mansion for $15.5 million. Also this month, a food services mogul sold a waterfront spec mansion for $17.8 million. Star Mets pitcher Max Scherzer bought his second home in the community for $14.9 million last month.