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David Halperin Senior Advisor

Before attending law school, David served as an officer in the U.S. Navy from 1966-1970, rising to the rank of Lieutenant Commander (U.S.N.R.) and serving from 1969-70 as a Special Assistant to Admiral E.R. Zumwalt, Commander of Naval Forces, Vietnam and later Chief of Naval Operations. From 1970-1971, he served as Personal Assistant to Dr. Henry Kissinger, Assistant to the President for National Security Affairs. After law school, David joined Davis Polk & Wardell in New York from 1974-1976 before moving to the Hong Kong office of Coudert Brothers in 1976. He became a partner of Coudert Brothers in 1983 and joined the Hong Kong office of Orrick in 2005. 

David Halperin Senior Advisor

Before attending law school, David served as an officer in the U.S. Navy from 1966-1970, rising to the rank of Lieutenant Commander (U.S.N.R.) and serving from 1969-70 as a Special Assistant to Admiral E.R. Zumwalt, Commander of Naval Forces, Vietnam and later Chief of Naval Operations. From 1970-1971, he served as Personal Assistant to Dr. Henry Kissinger, Assistant to the President for National Security Affairs. After law school, David joined Davis Polk & Wardell in New York from 1974-1976 before moving to the Hong Kong office of Coudert Brothers in 1976. He became a partner of Coudert Brothers in 1983 and joined the Hong Kong office of Orrick in 2005. 

Alessandra Di Lorito Associate

Rome

Alessandra's activity focuses on advising Italian and foreign clients in the areas of public procurement, project financing and concessions, infrastructure, energy and environment, both in and out of court.

She is the author of articles on administrative law published in legal journals of the sector.

Prior to joining Orrick, she gained experience in the same practice, working for a leading international firm.

Alessandra graduated with honors with a master's degree in law. She has also earned a LL.M. in Administrative Law (MIDA) from LUISS School of Law in 2023.

She is qualified as a lawyer in 2023 and has been a member of the Rome Bar Association since 2024.

Alessandra Di Lorito Associate

Rome

Alessandra's activity focuses on advising Italian and foreign clients in the areas of public procurement, project financing and concessions, infrastructure, energy and environment, both in and out of court.

She is the author of articles on administrative law published in legal journals of the sector.

Prior to joining Orrick, she gained experience in the same practice, working for a leading international firm.

Alessandra graduated with honors with a master's degree in law. She has also earned a LL.M. in Administrative Law (MIDA) from LUISS School of Law in 2023.

She is qualified as a lawyer in 2023 and has been a member of the Rome Bar Association since 2024.

464744

Practice:

  • Technology Companies Group
  • Technology & Innovation
  • Artificial Intelligence (AI)
  • Blockchain & Digital Assets

Brent Armitage Senior Associate

Santa Monica

Brent is a trusted advisor to founders and boards, guiding high-growth companies through every stage—from formation and fundraising to acquisitions and IPOs—while serving as outside general counsel on day-to-day legal and strategic matters.

Brent prides himself on providing practical, actionable advice, especially to first-time founders navigating complex legal challenges. He works with startups across industries such as fintech, Web3 and blockchain, artificial intelligence (AI), e-commerce, biotech, and digital media, leveraging Orrick’s sector expertise and innovative legal tools. He also represents leading venture capital and growth equity funds, advising them throughout the investment process.

Recognized for his efficiency, candid guidance, and deep industry knowledge, Brent is also active in the LA startup community, mentoring founders and supporting diverse entrepreneurs. Super Lawyers has named him a Rising Star from 2022 - 2026.

Prior to joining Orrick, Brent was a senior associate at Gunderson Dettmer.

Brent earned his J.D. from Loyola Law School in Los Angeles and his bachelor’s degree from Florida State University. Prior to attending FSU, Brent was a proud member of the men's basketball team at Nova Southeastern University.

464744

Practice:

  • Technology Companies Group
  • Technology & Innovation
  • Artificial Intelligence (AI)
  • Blockchain & Digital Assets

Brent Armitage Senior Associate

Santa Monica

Brent is a trusted advisor to founders and boards, guiding high-growth companies through every stage—from formation and fundraising to acquisitions and IPOs—while serving as outside general counsel on day-to-day legal and strategic matters.

Brent prides himself on providing practical, actionable advice, especially to first-time founders navigating complex legal challenges. He works with startups across industries such as fintech, Web3 and blockchain, artificial intelligence (AI), e-commerce, biotech, and digital media, leveraging Orrick’s sector expertise and innovative legal tools. He also represents leading venture capital and growth equity funds, advising them throughout the investment process.

Recognized for his efficiency, candid guidance, and deep industry knowledge, Brent is also active in the LA startup community, mentoring founders and supporting diverse entrepreneurs. Super Lawyers has named him a Rising Star from 2022 - 2026.

Prior to joining Orrick, Brent was a senior associate at Gunderson Dettmer.

Brent earned his J.D. from Loyola Law School in Los Angeles and his bachelor’s degree from Florida State University. Prior to attending FSU, Brent was a proud member of the men's basketball team at Nova Southeastern University.

Practice:

  • Technology & Innovation Sector
  • Complex Litigation & Dispute Resolution
  • Intellectual Property
  • Life Sciences & HealthTech

Diana Szego Fassbender Partner

Washington, D.C.

Diana’s experience in managing intricate, high-stakes litigation is evident in her innovative and cost-effective case strategies that consistently lead to favorable resolutions.

Diana's clients rely on her sophisticated, thoughtful approach to ensure solutions align with their overall business goals. Whether it’s through inception, trial, or appeal, Diana's involvement in all phases of litigation guarantees a seamless and effective process. When a business dispute requires aggressive action, Diana is equally adept at representing plaintiffs, showcasing her versatility and determination to achieve fair outcomes for her clients.

Though her experience spans a range of high-stakes commercial disputes, class action and product liability litigation are cornerstones of her practice. In addition to her skill in product liability, Diana has over a decade of experience litigating a variety of intellectual property matters. Her portfolio includes complex multi-defendant, multi-patent district court infringement actions, fast-paced Section 337 Investigations in the International Trade Commission, and high-stakes copyright and trademark cases.

Beyond her litigation success, Diana is dedicated to fostering talent and diversity within the legal community. She has served as a deputy to Orrick's Women's Initiative and played a key role in Orrick's recruiting efforts. Diana previously co-chaired the Associates Committee of Orrick's Washington, D.C., office, earning the Mentor of the Year award in 2011 for her outstanding contributions.

Since joining Orrick's New York office in 2007, Diana has been actively involved in community service. Before Orrick, Diana practiced law in Miami, where she was involved in the local legal community, serving on the Board of Directors of the Dade County Bar Association and participating in the Dade County eMentor program and the Women's Fund of Miami-Dade.

Practice:

  • Technology & Innovation Sector
  • Complex Litigation & Dispute Resolution
  • Intellectual Property
  • Life Sciences & HealthTech

Diana Szego Fassbender Partner

Washington, D.C.

Diana’s experience in managing intricate, high-stakes litigation is evident in her innovative and cost-effective case strategies that consistently lead to favorable resolutions.

Diana's clients rely on her sophisticated, thoughtful approach to ensure solutions align with their overall business goals. Whether it’s through inception, trial, or appeal, Diana's involvement in all phases of litigation guarantees a seamless and effective process. When a business dispute requires aggressive action, Diana is equally adept at representing plaintiffs, showcasing her versatility and determination to achieve fair outcomes for her clients.

Though her experience spans a range of high-stakes commercial disputes, class action and product liability litigation are cornerstones of her practice. In addition to her skill in product liability, Diana has over a decade of experience litigating a variety of intellectual property matters. Her portfolio includes complex multi-defendant, multi-patent district court infringement actions, fast-paced Section 337 Investigations in the International Trade Commission, and high-stakes copyright and trademark cases.

Beyond her litigation success, Diana is dedicated to fostering talent and diversity within the legal community. She has served as a deputy to Orrick's Women's Initiative and played a key role in Orrick's recruiting efforts. Diana previously co-chaired the Associates Committee of Orrick's Washington, D.C., office, earning the Mentor of the Year award in 2011 for her outstanding contributions.

Since joining Orrick's New York office in 2007, Diana has been actively involved in community service. Before Orrick, Diana practiced law in Miami, where she was involved in the local legal community, serving on the Board of Directors of the Dade County Bar Association and participating in the Dade County eMentor program and the Women's Fund of Miami-Dade.

Lauren Baron Associate

New York

Lauren is experienced with motion practice in federal district courts and state courts throughout New York, California, Texas, Delaware, and other jurisdictions. She has a broad base of scientific knowledge and focuses in patent practice dealing with networked technologies and biomedical engineering. Lauren also practices trade secrets law and drafts motions for cases brought under the Defend Trade Secrets Act, New York common law, and the California Uniform Trade Secrets Act.

Prior to joining Orrick, Lauren attended Columbia Law School, where she participated extensively in the Columbia Science, Health, and Information Clinic and the Columbia Science and Technology Law Review.

Lauren Baron Associate

New York

Lauren is experienced with motion practice in federal district courts and state courts throughout New York, California, Texas, Delaware, and other jurisdictions. She has a broad base of scientific knowledge and focuses in patent practice dealing with networked technologies and biomedical engineering. Lauren also practices trade secrets law and drafts motions for cases brought under the Defend Trade Secrets Act, New York common law, and the California Uniform Trade Secrets Act.

Prior to joining Orrick, Lauren attended Columbia Law School, where she participated extensively in the Columbia Science, Health, and Information Clinic and the Columbia Science and Technology Law Review.