 He left an $18 million estate.His will was a matter of dispute between the National Audubon Society and his estate, which was settled by a donation to the National Audubon Society, and the creation of the Frederick P. Lenz Foundation for American Buddhism, which is headed by Dr. Lenz’s accountant, Norman Marcus (executor of his will) and Norman Oberstein, his attorney.This act fulfilled provisions of the will necessary to apply the funds from Lenz's estate to the creation of the Lenz Foundation.