June Witterschein is the Law Department's Director of Professional Development, where she creates and implements the Continuing Legal Education curriculum for the Department’s 900 plus attorneys.  June and her staff are responsible for programming for the professional development of the Department’s employees, and they oversee the agency's diversity training programs, and the Department's Coaching Collaborative. June began her legal career in the Law Department in 1978 in the Appeals Division, and then served as Deputy Chief of the Legal Counsel Division. In 1990, June left the Department and later served as a law clerk to the then Presiding Judge Sylvia Pressler of the New Jersey Appellate Division.  June taught for nine years at Seton Hall University School of Law, before returning to the Law Department in 2003.

June is admitted to practice in the Courts of the State of New York, the US Courts for the Southern and Eastern Districts of New York, and the United States Supreme Court. She currently serves on the Mediation Panel of the Southern District of New York, and on the Law Department's Management Committee. June is also a member of the New York City Bar Association’s Committee to Enhance Diversity in the Profession.

Martha J. Mullen is a Senior Assistant Attorney General in the Civil Litigation Division for the District of Columbia’s Office of the Attorney General.  She has been with the office for nineteen years during which time she has litigated major class actions, Section 1983, Title VII, ADA, FLSA, and WPA claims as well as wrongful death, survival actions, and medical malpractice cases. This is her fifteenth year co-chairing the Municipal Law Institute.