Susannah practiced environmental law for a number of years and now devotes her time to working with nonprofit organizations. She serves on the Board of The Nature Conservancy in New York and chairs its Committee on Trustees. She is also on the Board of the School of American Ballet where she co-chairs the Studio Circle, which supports the school’s scholarship and diversity initiative for young girls. Susannah received her J.D. from the Georgetown University Law Center, where she served as the Executive Editor of the Georgetown International Environmental Law Journal. Susannah graduated from Trinity College with honors and as Phi Beta Kappa.