Mr Lev Dassin > Cleary Gottlieb Steen & Hamilton LLP > San Francisco, United States > Lawyer Profile
Cleary Gottlieb Steen & Hamilton LLP Offices

650 California St
Suite 2000
San Francisco
CALIFORNIA
94108
United States
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Mr Lev Dassin

Position
Lev L. Dassin’s practice focuses on complex commercial litigation, including white-collar criminal defense, crisis management, regulatory enforcement and internal investigations.
Career
Mr. Dassin joined the firm as a partner in 2009. Mr. Dassin teaches trial practice at Columbia University School of Law, where he has been a member of the adjunct faculty since 1999. He is frequently invited to speak on various topics related to corporate crime, terrorism, and trial practice, and has addressed, among other groups, the Federal Bar Council, the New York City Bar Association, the New York County Lawyers’ Association, the New York Council of Defense Lawyers, and the U.S. Army War College.
Memberships
Mr. Dassin is a member of the Bar in New York and is admitted to practice before the U.S. Supreme Court, the U.S. Court of Appeals for the Second Circuit and the U.S. District Courts for the Southern and Eastern Districts of New York.
Education
Mr. Dassin received a J.D. from New York University School of Law in 1990, where he served as the Developments Editor of the Law Review. Mr. Dassin received an undergraduate degree, magna cum laude and with Distinction In All Subjects, from Cornell University in 1987, where he was elected to Phi Beta Kappa. He served as a law clerk to the Honorable David N. Edelstein, United States District Judge for the Southern District of New York, from 1990 to 1992.
Lawyer Rankings
United States > Dispute resolution > Corporate investigations and white-collar criminal defense
(Leading lawyers: Advice to corporates)Cleary Gottlieb Steen & Hamilton is a top-tier firm in white-collar defense and corporate investigations, known for its sophisticated approach and impressive track record. The firm has earned a strong reputation for handling high-profile cases with the DOJ, SEC, and CFTC, demonstrating its ability to manage complex matters across multiple jurisdictions. Joon Kim, based in New York, has deep experience in white-collar defense, regulatory enforcement, and commercial investigations. Lisa Vicens, also in New York, specializes in anti-bribery and corruption, particularly in FCPA investigations before the DOJ and SEC. Lev Dassin , based in New York, has a deep expertise in government investigations, representing companies and boards in complex legal matters. Matthew Solomon, in Washington DC, is renowned for his work in white-collar defense and securities enforcement litigation. Victor Hou also from New York, leverages experience in high-stakes litigation, corporate governance, and securities litigations. Additionally, Thomas Bednar was promoted to partner in January 2025.
United States > Dispute resolution > Financial services litigation
Cleary Gottlieb Steen & Hamilton LLP is well-versed in complex financial services litigation, frequently defending global financial institutions in high-profile compliance and enforcement matters as well as criminal regulatory inquiries from the SEC, DOJ and other government agencies. The firm also represents several clients in the cryptocurrency and fintech space. The team is led by New York-based Lev Dassin, an expert in handling government investigations and crisis management, alongside Robin Bergen, who focuses on internal investigations from Washington DC. Support is offered by Victor Hou, who holds a focus on white-collar criminal defense, and former Acting US Attorney for the Southern District of New York Joon Kim, who has an enviable track record of representing renowned corporations in criminal and regulatory investigations and commercial disputes.
Lawyer Rankings
- Financial services litigation United States > Dispute resolution
- Leading lawyers: Advice to corporates United States > Dispute resolution > Corporate investigations and white-collar criminal defense
- Corporate investigations and white-collar criminal defense United States > Dispute resolution
Top Tier Firm Rankings
- Finance > Capital markets: debt offerings
- Finance > Capital markets: global offerings
- Antitrust > Cartel
- Antitrust > Civil litigation/class actions: defense
- M&A/corporate and commercial > Corporate governance
- Dispute resolution > E-discovery
- Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
- Tax > Financial products
- Dispute resolution > Financial services litigation
- Finance > Financial services regulation
- Dispute resolution > International litigation
- Tax > International tax
- Energy > Energy transactions: electric power
- Finance > Project finance
- M&A/corporate and commercial > M&A: large deals ($1bn+)
- Antitrust > Merger control
- Real estate > Real estate finance
- Dispute resolution > Securities litigation: defense
- Finance > Structured finance: derivatives and structured products
- Tax > US taxes: non-contentious
Firm Rankings
- Finance > Capital markets: equity offerings
- Finance > Capital markets: high-yield debt offerings
- International trade and national security > CFIUS
- Finance > Commercial lending
- Intellectual property > Patents: licensing
- M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
- Investment fund formation and management > Private equity funds (including venture capital)
- Finance > Restructuring (including bankruptcy): corporate
- Finance > Structured finance: securitization
- Media, technology and telecoms > Cyber law (including data privacy and data protection)
- Energy > Energy transactions: electric power
- Energy > Energy transactions: oil and gas
- Finance > Fintech
- Dispute resolution > General commercial disputes
- Dispute resolution > International arbitration
- Dispute resolution > M&A litigation: defense
- M&A/corporate and commercial > Shareholder activism
- Media, technology and telecoms > Technology transactions
- Intellectual property > Copyright
- International trade and national security > Customs, export controls and economic sanctions
- Finance > Project finance
- Real estate > Real estate
- Labor and employment > Employee benefits, executive compensation and retirement plans: design
- Dispute resolution > Corporate investigations and white-collar criminal defense