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Katie Legband O’Brien

Partner

klobrien@omm.com

Xiaoqiu Huang

Counsel, Registered Foreign Lawyer (New York)

xhuang@omm.com

Douglas C. Lionberger

Partner

dlionberger@omm.com

Laura Burstein

Pro Bono Counsel

lburstein@omm.com

Robin Zhang

Associate

robinzhang@omm.com

Jason Yip

Counsel

jyip@omm.com

Grady S. MacPhee

Associate

gmacphee@omm.com

Tom Asmar

Partner

tasmar@omm.com

avarela@omm.com
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Insights
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Events Jun 9, 2026
ABA: Demystifying the Antitrust Whistleblower Program
Events Jun 8, 2026
Groundwater Modeling and More 2026: “From Raindrop to Reservoir”
Events Jun 4, 2026
2026 TAS Leadership Summit: Building Influence Locally: The Future of City Clubs
Events Jun 2, 2026
Women in Private Markets Summit: North America
Events May 27, 2026
GAD Americas: Collaborative Capital: Aligning Stakeholders for Resilient Airport Investment
Events May 22, 2026
NAA: 79th Annual Meeting and Education Conference
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News
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Press Releases May 22, 2026
O’Melveny Represents TenNor Therapeutics in Approximate US$80 Million Chapter 18A Hong Kong IPO
Awards & Honors May 21, 2026
O’Melveny Partners Ryan Yagura and Darin Snyder Named 2026 “Top Intellectual Property Lawyers” by the Daily Journal
Awards & Honors May 20, 2026
Daily Journal: 2026 Top Intellectual Property Lawyers
Awards & Honors May 20, 2026
Los Angeles Times: Largest Law Firms in Los Angeles County
Press Releases May 20, 2026
O’Melveny Advises on US$370 Million Share Placement for Time Interconnect Technology
Press Releases May 19, 2026
O’Melveny Advises NTT DATA in Acquisition of WinWire
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Locations
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Shanghai
JC Plaza 12th Floor 1225 Nanjing Road West Shanghai 200040 People's Republic of China
Phone:: +86-21-2307-7000
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Beijing
Yintai Centre Office Tower 37th Floor No. 2 Jianguomenwai Avenue Chao Yang District, Beijing 100022 People's Republic of China
Phone:: +86-10-6563-4200
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Century City
1999 Avenue of the Stars 8th Floor Los Angeles, CA 90067 United States of America
Phone:: +1-310-553-6700
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Hong Kong
AIA Central 31st Floor 1 Connaught Road Central Hong Kong, S.A.R.
Phone:: +852-3512-2300
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Videos
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O’Melveny Sound Bites: Financial Restructuring in the Food & Beverage Industry
Meet Shawnna Yashar
Meet Skanthan Vivekananda
Meet Anwar Graves
Energy Business Summit: Wind Energy Panel
HSU Untied Podcast: Interview with Brian Cook
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Podcasts
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GHJ Insights: Licensing Trends in Entertainment Deals
Legal Speak Podcast: Mental Health in the Legal Industry: How to Mitigate Systemic Challenges and Boost Individual Resilience
AccelPro IP Law Podcast: On Practice Pointers for Patent Appeals
Achieve With Ep 2
Episode 1: AI’s Promise and Peril
Rolli’s Experts Explain Everything Podcast: Steve Olson Explains College Football Conference Realignment
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Pages
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Access to Education
Case Studies
Professionals
Celebrating 140 Years
Lunar New Year 2024 (en)
Pro Bono History
O’Melveny Participates in Election Protection Efforts
O’Melveny Achieves Key Win For Criminal Defense in Defining ‘Crime of Violence’
O’Melveny Challenges Kentucky’s Abortion Bans
O’Melveny Helps Non-Profit That Aids Doctors Serving Refugees
End-of-Life Doulas Can Continue Operating in California Thanks to O’Melveny Attorneys’ Support
O’Melveny Secures Asylum for Russian Man Persecuted for His Sexual Orientation
O’Melveny Represents Clients Seeking Transgender Name Changes
O’Melveny Helps Reunite Three Children Facing Deportation
O’Melveny Helps Venezuelan Political Refugee Secure Asylum
O’Melveny Aids Nigerian Brothers Fleeing Persecution
Ugandan Woman Threatened With Female Genital Mutilation is Granted Asylum
O’Melveny Advises Nonprofit Housing Services Provider
O’Melveny Successfully Defends Low-Income Single Mother Sued by Her Landlord
O’Melveny Secures Win for Gun Regulation Advocates as Amicus in Sixth Circuit Case
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