Jonathan Helwink

Bill Burgess’ practice focuses on appellate litigation across a broad range of subject matter, including patent litigation, commercial litigation, and regulatory matters. He has argued appeals in most of the United States courts of appeals, including several in the Federal Circuit. He has been to trial several times, joining trial teams to brief dispositive motions or prepare for appeals, and has also practiced before agencies such as the Patent & Trademark Office, International Tra...

Bill Gehrig has practiced public finance law for more than 25 years as bond counsel, underwriter’s counsel, general counsel, disclosure counsel and special tax counsel in more than 2,000 debt financings and refinancings totaling more than $25 billion. Bill has wide-ranging experience in single-family and multifamily bond financings, refundings, and restructuring transactions.

Jay R. Nanavati is an accomplished litigator, a former federal tax prosecutor, and a founding partner of Kostelanetz LLP's Washington, D.C., office. He has developed an enviable record of success in persuading the government to terminate investigations of his clients and in defeating the government in court. Mr. Nanavati maintains a nationwide practice, focusing on white-collar criminal defense with an emphasis on tax-related matters. He represents individuals and entities facing investigatio...

William E. Fork is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. William E., 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 William E. is held by other top lawyers in the same geographic and legal practice area.

Christopher S. Rizek is a Member in Caplin & Drysdale's Washington, D.C., office. He also serves as General Counsel to the firm. In 2014, he was listed in the elite "Leading Lawyer" list for Tax Controversy by The Legal 500 . Services Mr. Rizek represents taxpayers in all types of federal civil and criminal tax controversy matters. He also guides clients through IRS audits, prepares administrative claims and protests of IRS actions, and litigates tax and tax-related cases in U.S. district...

Owen Walker practices in the areas of commercial construction and government contracts law. He represents owners, developers, design professionals, contractors and subcontractors in all phases of construction projects, from contract preparation and negotiation through dispute resolution and litigation. Owen counsels regional, national and international clients on legal matters, including contract formation, administration and performance, claim entitlement and liability, contract termination ...

Swathi Bojedla is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Swathi, 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 Swathi is held by other top lawyers in the same geographic and legal practice area.

David J. Levine has more than 35 years of experience practicing international trade law. He counsels clients on import relief, customs, export controls, trade sanctions, anti-boycott, national security reviews of foreign investments and related trade laws and procedures. David advises and represents clients in antidumping and countervailing duty proceedings, trade controls and customs proceedings, national security (CFIUS) reviews of foreign investment in the US, trade compliance diligence in...

Read more on firm website.

Jessie K. Liu is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice and Criminal Defense: White-Collar. Jessie K., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessie K. is held by other top lawyers in the same geographic and legal practice area.