Kelso & Co, an American private equity firm, agreed to invest in LMP-backed Pathstone, an independent family and partner owned advisory firm. Financial terms were not disclosed. "Our success over the years has placed us in a position to be the destination of choice for employees, families, and firms who have done great things but realize they want and need more support and better advice. With this new capital and partnership, we will continue to build a best-in-class firm delivering industry-leading service while remaining true to our values of Innovation, Caring, Proactivity, Humility, and Passion," Kelly Maregni, Pathstone President.