A former law clerk for the Washington State Supreme Court for the Hon. Robert F. Brachtenbach from 1991 to 1992, Catherine Has significant experience in the appellate courts in the State of Washington. She has participated in over 30 appeals (and counting) during her career as well as maintaining a full practice at the trial court level including both motions practice and trial work. Because of her experience of both the trial court level and the appellate court level Catherine is unique as few appellate lawyers also have trial experience. Her appearances in the appellate courts in the State of Washington include the Ninth Circuit Court of Appeals, the Washington State Supreme Court, and the Washington Court of Appeals.
In 2014, Catherine was admitted, after an application and vetting process, to the Washington Appellate Lawyers Association, a Specialty Bar Association in Washington State.