John Mahoney, Esq. is a Partner with Tully Rinckey PLLC and concentrates his practice in federal sector employment and labor law. John is rated as a "Preeminent Lawyer™" and is registered by Martindale-Hubbell® in the 2011 Bar Registry of Preeminent Lawyers™.
John provides representation to federal employees, agencies, unions, and employee associations in federal sector labor and employment law matters throughout the country and around the world. He has nearly 20 years of experience representing the federal sector community and has served as an expert witness on federal employment law.
John has represented clients before some of the highest courts in the country, including the U.S. Supreme Court, as well as before such federal agencies as the Equal Employment Opportunity Commission, the Merit Systems Protection Board, the Federal Labor Relations Authority, the Office of Special Counsel, and the Office of Personnel Management. He has served as the vice chair (ES IV) and as an administrative judge for the Government Accountability Office's Personnel Appeals Board. He has served as general counsel to various unions, as senior associate to the general counsel of the Senior Executives Association, as well as a member of the AFL-CIO's national Lawyers Coordinating Committee.
John received the highest attorney AV® Preeminent™ Peer Review Rating from the Martindale-Hubbell® National attorney rating service, meaning he is considered by the legal community to be a lawyer with "preeminent legal ability; expertise, experience, integrity and overall professional excellence" and that he "clearly demonstrates the highest professional and ethical standards." He has also been a member of the American Bar Association (ABA), the Metropolitan Washington Employment Lawyers Association (MWELA), and is a current member of the Bar of the Supreme Court of the United States. He is admitted to practice law in the District of Columbia, and the State of Maryland.
John was elected to serve as the D.C. Bar's Labor and Employment Law Section Co-Chair, in which position he led them to their only "Best Section of the D.C. Bar Award." Subsequently, he was elected to serve as the Chair of the D.C. Bar's Council on Sections, in which position he oversaw the development of continuing legal education and community outreach programs.
As a former candidate for the Maryland State Senate and as the former Young Democrats President of Maryland, John has worked with several high profile leaders. In 2004, John had the honor of addressing the Maryland Delegation at the Democratic National Convention, where he had the pleasure of meeting for the first time Barack Obama, President of the United States.
Prior to joining Tully Rinckey PLLC, John founded The Mahoney Law Group, a boutique immigration law firm, and The Mahoney Group, a professional search firm. John was also a founding partner and the director of litigation at Mahoney & Mahoney, LLP, a leading Washington, D.C. law firm. He is also a published author and frequent public speaker on federal labor and employment law issues.
John earned his Juris Doctorate from the Catholic University of America's Columbus School of Law in 1993. While there, he was chosen as an Editor of the Year of The Catholic University Law Review®. In 1990, John obtained his bachelor's degree with honors from Assumption College in his hometown of Worcester, Massachusetts, where he co-founded the college's Law Society.