A private foundation set up by prolific radio producer Himan Brown convinced a judge in Manhattan Surrogate’s Court to sustain most of its lawsuit against Pryor Cashman partner Richard Kay over claims that he tricked Brown into adjusting his $100 million estate plan and exploited that control for his personal benefit.

Radio Drama Network, a private foundation set up by Brown in 1984 to promote radio dramas and educational initiatives, accused Kay in 2016 of coaxing an aging Brown into signing most of his $100 million over to the Himan Brown Charitable Trust, of which Kay is the sole trustee. Kay sought dismissal, but Surrogate Nora Anderson largely rejected his motion in a July 15 decision that came about three years after arguments were held.