Heather Sisto Koontz

Jim is widely recognized as one of the foremost advisers to the global tax community with regard to civil and criminal tax enforcement matters. He represents clients in all phases of federal civil tax controversies. Jim is one of the few lawyers in the country who has served as lead counsel on international criminal tax cases. In that role, he has defended publicly traded companies, boards of directors, and senior management facing criminal investigations and prosecutions for alleged tax viol...

S. Mohsin Reza is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. S. Mohsin practices law in McLean, Virginia Best Lawyers has recognized S. Mohsin Reza since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which S. Mohsin Reza is held by other lawyers.

David M. Perlman is a lawyer recognized by Best Lawyers in the practice areas of Energy Law and Oil and Gas Law. David M. practices law in Washington, District of Columbia Best Lawyers has recognized David M. Perlman since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David M. Perlman is held by other lawyers.

Shirley Steinbach represents companies and individuals seeking to resolve a myriad of business and personal disputes through litigation, arbitration, mediation and settlement. She counsels clients to help them make sound strategic business and legal decisions. One client has said that “what most impresses me about Shirley is her professional demeanor and temperament. Lawyers who are all ‘fire and brimstone I-was-born-a-pitbull-and-will-fight-for-you (for an appropriate fee!)&rsquo...

James V. Cole is a lawyer recognized by Best Lawyers in the practice area of Employee Benefits (ERISA) Law. James V. practices law in Washington, District of Columbia Best Lawyers has recognized James V. Cole since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which James V. Cole is held by other lawyers.

Jerald A Jacobs is a Washington attorney and head of the Nonprofit Organizations practice of the Pillsbury Winthrop Shaw Pittman LLP law firm. That practice annually provides legal counseling and advocacy for over 150 national trade associations, professional societies, cause organizations, and charities. He is also head of the 75-attorney Public Practices and Public Policy Sections of the firm. His practice includes antitrust and trade regulation, health law, litigation, nonprofit corporate ...

Hans P. Dyke is a lawyer recognized by Best Lawyers in the practice area of Energy Law. Hans P. practices law in Washington, District of Columbia Best Lawyers has recognized Hans P. Dyke since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Hans P. Dyke is held by other lawyers.

Sam Spiritos’ clients recognize him as a sophisticated transactional attorney, trusted business advisor and an effective negotiator who truly understands their business needs. Over the course of his thirty-plus year career of successful deal-making, Sam has developed not only a masterful legal ability, but also strong relationships with many key players in the real estate markets in DC, Maryland, Northern Virginia and throughout the country. He draws upon this experience (which includes...

Richard Chinn is a lawyer recognized by Best Lawyers in the practice area of Patent Law. Richard practices law in Tysons, Virginia Best Lawyers has recognized Richard Chinn since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Richard Chinn is held by other lawyers.

Mary Ann Mancini's practice focuses on advising high net worth families and individuals who reside in the United States and internationally. Her clients include leaders of Fortune 100 companies and their families, as well as families whose wealth is more privately held and, in many cases, based on real estate ownership. Mary Ann counsels her clients on all matters that affect their estates, including the structuring and formation of entities, the creation of irrevocable “dynasty” ...