Filip Grzelak

William J. Cople III defends government contractors and commercial companies in a range of critical industries in government investigations, litigation, trials, and prosecutions involving the False Claims Act, Anti-Kickback statute, and Foreign Corrupt Practices Act, and handles corporate internal investigations, whistleblower claims, and Congressional investigations. He represents pharmaceutical, medical device, financial institution, and engineering and construction firms as trial counsel i...

Daniel P. Lyon is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Daniel P., who practices law in Leesburg, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel P. is held by other top lawyers in the same geographic and legal practice area.

Alexandra Field is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. Alexandra, 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 Alexandra is held by other top lawyers in the same geographic and legal practice area.

Stephanie Holland is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Stephanie, who practices law in Tysons, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie is held by other top lawyers in the same geographic and legal practice area.

Alan S. Mark is a member of the firm’s Commercial Transactions , Financial Services , Real Estate , and Science & Technology Practice Groups. For the past 35 years, Mr. Mark has concentrated on corporate, commercial and real estate finance matters. He has served as outside counsel to numerous local, regional and national financial institutions, publicly traded biotechnology companies and hotel owners and operators. He has also served as outside counsel to information and telecommuni...

For more information, please visit www.gibsondunn.com/lawyer/ludwiszewski-raymond-b/ .

After serving as a law clerk for a Federal judge in Los Angeles, Mike began his career in tax controversy as a Trial Attorney with the Attorney General’s Honors Program at the Tax Division of the U.S. Department of Justice. After the Justice Department, Mike worked at a boutique tax firm in Washington, D.C., where he was elected partner in 2004. In this capacity he represented clients ranging from Fortune 100 companies to partnerships and individuals. Mike returned to government in 2005...

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

Phillip Hummel represents developers, property owners, nonprofits (including hospitals, museums, and religious organizations), and senior living facilities on zoning, planning, entitlements, permitting, historic preservation, development impact taxation, and other land use matters across several Maryland jurisdictions. He counsels clients from due diligence through permitting, regularly appears before municipal, county, and state agencies, and brings significant litigation experience to Maryl...

Louis Cohen is a senior counsel in the firm's Litigation/Controversy Department, and a member of the Appellate and Supreme Court Litigation Practice Group. He joined the firm in 1967. Mr. Cohen served as Deputy Solicitor General of the United States from 1986-1988, and focuses on US Supreme Court and other appellate litigation and corporations law. Mr. Cohen’s appellate practice has included more than fifty cases on the merits in the US Supreme Court and a large number of cases in the c...