Osen LLC is an internationally recognized boutique law firm litigating complex matters, often global in scope. Although the Firm’s practice encompasses a broad variety of cases, Osen LLC is best known for its prominent role in matters concerning terrorism financing, money-laundering, human rights violations, and complex commercial litigation. The Firm’s innovative approach enables it to litigate high-profile cases typically handled by much larger firms. Osen LLC’s track record of resolving daunting legal challenges with creative solutions has resulted in important legal precedents that frequently have critical public policy implications. At the same time, Osen LLC maintains an absolute commitment to individualized client service. It is these twin commitments – to our clients, and to the public good – that are our firm’s signature.

Recently, Osen LLC’s successful representation of Wertheim family heirs was coined “one of the largest [cases] ever since the Holocaust and the most important and historic restitution of property in 20 years” by a leading Holocaust victims organization. Osen LLC also currently serves as one of the lead plaintiffs’ counsel in high-profile terrorism financing lawsuits against large international banks. Three of the cases have survived the banks’ efforts to dismiss the lawsuits as a matter of law. The cases have been the subject of significant diplomatic discussions and have been widely discussed in the media and political circles as innovative, vital tools for combating terrorism financing and money-laundering. Osen LLC is also one of several firms currently litigating an action on behalf of the families of slain American missionaries against a large United States-based produce company concerning illegal payments to a South American terrorist organization.

Our attorneys have been featured and quoted in many leading publications in the United States and worldwide, including The New York Times, CNN, The Wall Street Journal, Washington Post, Los Angeles Times, The Philadelphia Inquirer, The Boston Globe, Time, The Economist, Corporate Legal Times, the Times of London, Der Spiegel, the Financial Times, Frankfurter Allgemeine Zeitung, and Neue Zuricher Zeitung.

We are dedicated to relentlessly and creatively pursuing our clients' objectives. Our structure and philosophy permit us to approach difficult problems in ways that many larger firms often do not have the flexibility or independence to do, and many other small firms would never attempt. We welcome the opportunity to discuss our practice and philosophy with you.  Visit us on our Facebook page.