Practice Areas

Anti-Terrorism Act (ATA)

Osen LLC is committed to obtaining just compensation for terrorism’s victims and exploring new policy and legal initiatives that will advance and improve counter-terrorism programs...

State Sponsors of Terrorism (FSIA)

As part of its long-standing efforts on behalf of victims of terrorism, Osen LLC has brought multiple civil suits against U.S. designated State Sponsors of Terrorism...

Iranian Sanctions Compliance

Osen LLC’s team has extensive experience with U.S. regulations and statutes affecting international businesses in sanctions, terror-financing and anti-money laundering reviews...

Landmark Restitution Cases

Osen LLC is one of the leading law firms representing individuals and corporations with respect to properties and business assets confiscated by the Nazi regime or the former GDR...