People

SeoJung Park Partner

Silicon Valley

SeoJung brings experience advising U.S. and International private equity funds in all phases of their operations, including formation, acquisition, financing, restructuring and exiting portfolio investments. She also counsels private and public companies, banks, and financial institutions on the U.S. tax aspects of various financings, capital markets and other transactions.

Abigail Parkin Associate

London

She has acted for listed companies, investment banks, and public and private emerging high-growth companies across a range of sectors including energy and natural resources, engineering, technology, healthcare and life sciences and consumer goods.

Abby regularly advises on IPOs, secondary fundraisings, public takeovers, acquisitions and disposals for public and private companies, group restructurings, investments and corporate governance.

Mark Parris Partner

Seattle

"An outstanding trial lawyer, very strategic, very responsive and very creative," according to Chambers USA's Guide to America's Leading Lawyers for Business.

His experience includes representing Fortune 500 and other clients from various industries (e.g. technology, financial services, chemical/manufacturing, energy, retail). The litigation has involved IP, Securities, Insurance, Employment, Products Liability, Class Actions and significant contract disputes in Federal and State courts and before arbitration panels throughout the United States. He has been a speaker nationally at various seminars on litigation, arbitration, mediation and trial techniques. Mark has tried dozens of cases – both jury and non-jury trials – and mediated and arbitrated 75-plus cases. He has argued numerous appeals in Federal Circuits across the country and has served as an expert witness on multiple occasions. Mark has also served as National Counsel to a number of clients involved in multi-state litigation. He has been recognized as one of America’s Top 100 Bet-The-Company Litigators, is one of two IP litigators in Washington selected as an Amazing Attorney by Washington CEO magazine and was recently recognized as one of the top 30 Trial Lawyers in Washington.

In addition, Mark is a member of the firm’s Insurance Recovery Group. He has been named as the leading policy-holder side attorney in Washington State. He has represented several Fortune 500 companies as well as the State of Washington, the Washington Association of Municipal Attorneys and several cities, counties and port authorities in insurance coverage disputes.

Prior to joining Orrick, Mark was a partner at Heller Ehrman.

Amy Pasacreta Of Counsel

New York

She advises investment banks, broker-dealers, hedge funds and other financial institutions on legal issues related to the purchase and sale of domestic and international par and distressed assets, including bilateral and syndicated loans, loan participations and derivative structured products. Amy also works with clients to structure deals involving preference, administrative and unsecured trade claims and assists clients in enforcing their rights in the bankruptcy case after the claims are purchased. She represents buy side and sell side clients in connection with private transfers of debt and equity securities, special situations investments, and transactional matters relative to in-court and out-of-court restructurings. Amy also has experience representing lenders on secured and unsecured financing transactions across a wide array of industries, including shipping, airline, energy and infrastructure.

Amy is a consensus builder with industry knowledge and working relationships with all major market players. She has extensive experience in the preparation and negotiation of bespoke documents under the LSTA and LMA regimes, and is routinely involved with cross-border transactions throughout Europe, Asia, Latin America and the United States. A seasoned practitioner, she coordinates efforts and resources across the firm to ensure transactions are handled efficiently.

Amy is an active member of the industry’s loan associations and provides training for in house counsel and operations teams at financial institutions.

Amisha R. Patel Counsel

Boston

She has advised clients across industries such as technology, pharmaceutical, finance, and consumer products.

Amisha partners with in-house counsel to devise and execute strategies that align with advancing their overall business goals. She has experience at all stages of litigation – including drafting pleadings and motions, successfully arguing motions, taking and defending depositions, preparing for trial, mediation, arbitration and settlement. She has represented clients in state and federal courts, and before the U.S. Federal Trade Commission and foreign competition authorities.

She has significant investigations experience, having represented senior executives and high-profile individuals in internal and government agency investigations – including the U.S. Department of Justice and the Securities & Exchange Commission.

Amisha previously taught at The George Washington University Law School as an adjunct professor in the Scholarly Writing Program. She maintains an active pro bono practice, representing clients in state and federal court and before the United States Citizenship and Immigration Services. She has drafted cert-stage and amicus briefs in cases before the U.S. Supreme Court in the areas of immigration and affirmative action.

Paige Pavone Partner

New York

Paige represents large corporations, public entities, and individuals in high-stakes matters in federal and state courts nationwide.   She manages and litigates complex matters, including class actions, multi-district litigations, and cases set for trial.  Much of Paige's work focuses on cases alleging exposures to or economic harm from various chemicals, including pesticides, herbicides, PFAS, and chemicals with industrial applications.  

Paige effectively argues motions, takes depositions, manages discovery, drafts briefs, and negotiates settlements.  Paige has participated in successful jury trials and has delivered constructive presentations to government actors.  She was named a Best Lawyers:  Ones to Watch® in America for 2024 and 2025.

Dedicated to her active pro bono practice, Paige has led a class of detained individuals seeking to remedy constitutional rights violations and has assisted individuals in their efforts to navigate immigration laws.  Paige was honored as an Excellent Pro Bono Attorney for her work on mandamus petitions with the International Refugee Assistance Project.  

From 2017-2018, Paige served as a law clerk for the Honorable Dora L. Irizarry, Chief United States District Judge for the Eastern District of New York.  Prior to clerking, Paige worked as an associate at a global law firm, engaged in complex commercial litigation, arbitrations, and investigations.  

Alexandra Pawlowski Managing Associate

Paris

T. Vann Pearce, Jr. Partner

Washington, D.C.

Vann litigates in forums throughout the country. He has won several inter partes review proceedings before the Patent Trial and Appeal Board. He has secured favorable jury verdicts in Federal and state courts in Delaware, Florida, Maryland, and Texas. Multiple wins on behalf of his clients at the U.S. International Trade Commission in Section 337 investigations have earned recognition with “Disputes Deal of the Year” awards. And he has crafted winning strategies and briefs in precedent-setting Federal Circuit appeals.  

A chemical engineer by training, Vann is a member of the Patent Bar. His representations involve a broad range of technology fields, including semiconductors, artificial intelligence, consumer electronics, 3D printing, automotive technologies, digital imaging, cryptocurrency, and batteries. His clients are based worldwide, including a significant portion from Japan and China. Vann frequently travels to Asia to speak on key developments in intellectual property law.

Patent infringement litigation is central to Vann’s practice, but he also has handled breach of contract, trade secret misappropriation, antitrust, tortious interference, false advertising, civil theft, and bankruptcy matters. Many of his matters involve a complex mix of claims and counterclaims across legal disciplines, where he employs his strategic judgment to navigate competing risks.

While his practice focuses on litigation and dispute resolution, Vann also advices clients on patent licensing, portfolio development, and intellectual property due diligence. Vann co-founded Orrick’s cross-practice 3D printing initiative.

Vann has served the Firm in key leadership roles. In 2022-2023, Vann served as the Chief Practice Officer for the firm's IP & Litigation Business Units, which comprise nearly 400 attorneys globally. His responsibilities included oversight of the units' financial performance, business planning and execution, and lawyer recruiting. Vann also previously served as the firm’s U.S. Law School Hiring Partner, overseeing entry-level hiring nationwide.

Livia Maria Pedroni Partner

Milan

With a wealth of experience and a deep understanding of the technology and innovation market, Livia regularly advises early and late-stage companies on both single and multi-tranche investment rounds, secondaries, bridge financings, LBOs, buyouts and other types of exits, mergers, and corporate reorganisations. She has worked with international innovative companies from their inception and has also advised many of the key venture capital and private equity investors in the Italian and international markets.

Alongside her focus on technologies, she has acquired specific experience in the healthcare sector by working alongside one of the world-leading group in the laboratory analysis sector, since its entry onto the national scene until consolidating its leadership position in Italy through M&A transactions.

Naomi Pen Managing Associate

New York

Naomi provides clients guidance on implementing global privacy programs and advises on the U.S. state privacy laws in California, Colorado, Connecticut, Utah, Virginia and other states. She assists clients in breach investigations and cybersecurity incident response, including advising on breach notification, regulatory investigations and managing cybersecurity policies and procedures.

Naomi draws on her experience in fixed income trading technology when advising on cybersecurity and compliance risks within business operations. During law school she externed at the Center for Reproductive Rights focusing on privacy in the context of international human rights.

Aerielle Pendleton Managing Associate

New York

Aerielle represents clients in complex litigation matters in both federal and state courts.  With significant experience in high-stakes litigation matters, Aerielle litigates cases on behalf of technology companies, investment firms, banks, and individuals.  Aerielle has extensive experience defending clients in mass torts, product liability matters as well as working with teams guiding clients through government and investigations and enforcement actions.  Aerielle also has experience working with a team in a high-profile intellectual property matter.

Aerielle is also active in pro bono matters, primarily focusing her practice on a wrongful death action against an ICE subsidiary.

Andrew Pennacchia Senior Counsel

New York

He frequently advises mortgage companies, fintechs, lead generators, consumer and commercial lenders, banks and other financial services companies on key federal and state consumer financial laws, safety and soundness regulations, multistate licensing requirements, and government agency lending and servicing guidelines. Andrew also assists clients with enforcement actions brought by federal and state regulators and conducts comprehensive regulatory assessments in connection with potential acquisitions designed to identify regulatory gaps and systemic compliance control deficiencies.

Andrew has assisted clients in facilitating compliance with the Equal Credit Opportunity Act (ECOA), the Truth in Lending Act (TILA), the Real Estate Settlement Procedures Act (RESPA), the Home Mortgage Disclosure Act (HMDA), unfair, deceptive or abusive acts or practices (UDAAP), the Fair Credit Reporting Act (FCRA), the Gramm-Leach Bliley Act (GLBA), the Fair Debt Collection Practices Act (FDCPA), Controlling the Assault of Non-Solicited Pornography and Marketing Act of 2003 (CAN-SPAM), Telephone Consumer Protection Act (TCPA), and other key federal laws.

His work also includes assisting clients in developing compliance management systems and vendor management programs that meet regulatory expectations, and in preparing for and managing examinations by the Consumer Financial Protection Bureau (CFPB), federal prudential regulators, and state regulators. In addition, he represents clients in investigations initiated by the CFPB.

Prior to joining Orrick, Andrew was senior counsel at Buckley LLP. He also worked in Morgan Stanley’s Legal and Compliance Division, where he provided advice on various regulatory compliance requirements affecting securities-based, commercial and institutional lending, and assisted in the development and implementation of a risk-assessment process for retail lending products. Andrew was also a member of Morgan Stanley Credit Corporation's Mortgage Compliance Committee. Prior to his tenure at Morgan Stanley, he served as vice president of legal affairs for Premium Capital Funding LLC.