12540 Seminole Beach Road, North Palm Beach (Google Maps) The estate of the late coal billionaire Christopher Cline sold another oceanfront North Palm Beach mansion — this time for $22.1 million. Records show Lesslie Ray and Timothy Elliott, as co-personal representatives of Cline’s estate, sold the property at 12540 Seminole Beach Road to George F. McCabe, trustee of a trust in his name. Included in the sale was the lot adjoining the mansion with tennis courts and other outdoor features. McCabe is the CIO, managing director and founder of Portolan Capital Management, a Boston-based investment management firm. Cline was the former owner of St. Louis-headquartered coal energy producer Foresight Energy. According to Forbes, he sold a controlling stake in the company for $1.4 billion in 2015.