Mark R. Haskell

Sarah Moore Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Sarah Moore, 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 Sarah Moore is held by other top lawyers in the same geographic and legal practice area.

Paul Oosterhuis is a senior international tax partner representing clients on a wide range of international and U.S. tax matters. Mr. Oosterhuis has extensive experience in international mergers and acquisitions, post-acquisition integration transactions, spin-offs, internal restructurings and joint venture transactions. He also represents multinational companies in nontransactional international tax planning and IRS controversy matters. In recent transactions, Mr. Oosterhuis has represented:...

Joshua B. Waxman is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Joshua B., 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 Joshua B. is held by other top lawyers in the same geographic and legal practice area.

Whether they are buying, selling or financing businesses, CEOs, business owners, and investors turn to Aaron Ghais to get deals done. Aaron specializes in representing mid-market companies that aspire to grow through acquisitions, and also helps business owners maximize value when they sell their companies. Clients benefit from his ability to lead them successfully through the M&A process using his creative problem-solving skills, well-honed business sense, and results-oriented style. A f...

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...

William C. Sjoberg is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. William C., 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 C. is held by other top lawyers in the same geographic and legal practice area.

Dara Levy helps pharmaceutical and medical device companies on a wide range of issues relating to product communications, marketing, and import/export. Dara assists clients with products in all stages of development to design engaging communications compliant with FDA legal and regulatory requirements. In the pre-marketing stage, Dara works with companies to strategically communicate with investors, potential marketing partners, and the scientific community, as well as implement effective dis...

Liz Young provides tax counsel to private and public real estate investors, private equity sponsors, real estate developers, and tax exempt organizations to finance community development projects across the U.S. What do you focus on? Transactional Tax Experience I started my legal career in the international tax department of one of the largest professional services firms in the world. There, I handled complex inbound and outbound tax planning and tax compliance for multinational clients, dom...

With a practice focused primarily on the development, delivery and implementation of digital health solutions, data and research, Jennifer S. Geetter works closely with both adopters and developers to bring their innovative healthcare solutions to patients and providers. In order to design and deploy digital health technologies effectively, Jenn offers valuable guidance on key issues, like patient on-boarding, provider implementation, privacy and regulatory issues. She advises global life sci...

Universally considered to be among the country's premier Supreme Court and appellate advocates, Seth Waxman served as Solicitor General of the United States from 1997 through January 2001. In addition to leading the firm's appellate practice, Mr. Waxman engages in a broad litigation and counseling practice, with particular emphasis on complex challenges involving governments or public policy, intellectual property, regulatory, criminal and commercial issues.