Niall McMillan

James N. Mastracchio is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. James N., 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 N. is held by other top lawyers in the same geographic and legal practice area.

Personal injury lawyer Joseph Cammarata is a dual board-certified civil trial attorney, nationally known for his tenacity and perseverance in zealously representing clients in all stages of litigation. Mr. Cammarata's practice is concentrated in the areas of serious personal injury, brain injury, wrongful death and medical malpractice. He also successfully champions the rights of victims of discrimination and civil rights abuses. He has litigated against insurance companies, governmental enti...

Marcus Greene is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Marcus, who practices law in Vienna, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcus is held by other top lawyers in the same geographic and legal practice area.

Ruth Wimer is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Ruth, 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 Ruth is held by other top lawyers in the same geographic and legal practice area.

Adam Herzog, a partner of Katz Banks Kumin, joined the Firm in December 2013. Mr. Herzog has represented numerous clients pursuing whistleblower tips before the SEC, CFTC and FINCEN and has successfully assisted them in earning millions of dollars in award payments. Three of Mr. Herzog’s clients received SEC whistleblower awards in the second half of 2023 alone, some of whom participated in a $104 million total award that was the fourth largest in the SEC program’s history. Detail...

Bill Christiansen specializes in biotechnology patent matters, with particular emphasis on U.S. and international patent procurement, strategic management of patent portfolios, investment due diligence, early stage company counseling and competitive patent position analysis. He received his B.S. in Biochemistry and Biophysics (with honors) from Oregon State University (1991). After obtaining a Ph.D. in Biochemistry/ Biophysics/Molecular Biology from the University of Notre Dame (1995), for wh...

Brian D. Bichy is a Shareholder in the firm’s Condo/HOA Practice Group as well as the Group’s Chair. He represents developers in creating residential and mixed-use projects in Maryland and Washington, D.C. In this capacity, Brian drafts governing documents, easements, restrictive covenants, and other legal instruments, and helps ensure compliance with jurisdictional requirements. Brian assesses each client’s needs on an individual basis to provide customized, creative soluti...

Christopher Davies has more than 25 years' experience representing clients around the world in challenging circumstances. He has experience in complex civil, criminal and administrative matters, often involving crisis management. In just the past year, Mr. Davies has represented, among others: a party in the various investigations and litigation arising from the allision between the Dali and the Key Bridge; Norfolk Southern in investigations and litigation relating to the derailment in East P...

Jeffrey B. Stern serves as co-leader of the Firm's Global Hospitality, Resort and Timeshare Team. He concentrates his practice in the areas of real estate development, timeshare and hospitality with an emphasis on the resort development and finance industries. His clients consist of a wide variety of owners, developers, lenders, financial institutions, and marketing and management companies, ranging in size from entrepreneurial ventures to Fortune 100 corporations in connection with the follo...

Colleen M. Haddow has been practicing exclusively in the area of family law since 2006. Ms. Haddow focuses her practice on all aspects of family law, including divorce, custody, spousal support, mediation and property settlement agreements. Ms. Haddow regularly appears throughout courts in Northern Virginia representing the interests of her clients. She takes a practical and economical approach to her cases and strives to meet the individual needs of each client. Ms. Haddow thoroughly enjoys ...