Matthew Murchison

Matt Kaiser is the founding partner at KaiserDillon PLLC. He represents individual and small business clients in commercial litigation , government investigations , and white-collar cases . Before starting KaiserDillon PLLC, Matt worked at some of the best litigation firms in the country - Williams & Connolly and Zuckerman Spaeder. He also worked in the Maryland Federal Public Defender's Office and clerked for United States District Judge Catherine C. Blake. Matt is an adjunct professor o...

Caroline Ngo is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Caroline, who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Caroline is held by other top lawyers in the same geographic and legal practice area.

Molly T. Senger is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Molly T., who practices law in Washington, District of Columbia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Molly T. is held by other top lawyers in the same geographic and legal practice area.

William (Tom) Thompson has specialized in government contract law and construction litigation for more than 40 years. Tom has represented a broad range of Government contractors (major defense contractors, information technology and systems integration contractors, construction contractors, etc.). His clients have ranged from multibillion-dollar contractors to start-up companies. This representation has included advice on federal cost principles and cost accounting requirements, and complianc...

Louis Mazawey brings decades of experience as an authority on the tax aspects of employee benefits in all forms to his work at Groom. As counsel to major insurance companies and a variety of plan sponsors—including corporate employers, trade associations, and public retirement systems—Lou has worked closely with qualified plans, 403(b) and 457 plans, IRAs, employee stock ownership plans, executive compensation, retiree medical benefits, plan terminations, mergers and spinoffs, the...

James V. Cole is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. James V., who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James V. is held by other top lawyers in the same geographic and legal practice area.

Bob Wellen, a partner of the firm, has practiced tax law for nearly 35 years. His practice involves planning, structuring and negotiating business transactions and representing taxpayers seeking private letter rulings from IRS and tax policy determinations from IRS and the Treasury Department and in controversies with IRS. He also serves as an arbitrator and as an expert witness in commercial disputes involving tax issues. Bob grew up in Jersey City, New Jersey. He graduated from Yale College...

Janel Quinn is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Janel, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Janel is held by other top lawyers in the same geographic and legal practice area.

Christine Keller advises a wide range of clients on all aspects of health and welfare plan design, administration, and funding including compliance with federal tax, ERISA, and other federal and state law requirements, plan and VEBA trust document drafting, participant disclosure, change in election issues, wellness program compliance, and claims and appeals. Her clients include employers, insurers, and service providers of all sizes. She draws on her prior IRS experience to provide practical...

Mr. Colten was born in New York City and has been a long-time resident of Virginia. After serving as Assistant Commonwealth's Attorney in Fairfax County for two years, Mr. Colten entered private practice in Northern Virginia. He was a founding member and principal of Surovell, Jackson, Colten & Dugan, P.C. and its predecessor and successor firms, prior to forming Colten | Watson | Vincent Law Group P.C. In 1965, Mr. Colten received his B.S. with a major in sociology from American Universi...