People

Tim Carroll Partner

Chicago

Tim focuses his practice on cutting-edge technologies, including mobile apps, location-based services, messaging systems, medical devices, content-management platforms, Wi-Fi-enabled thermostats, and green technologies. Whether serving as lead trial counsel before the International Trade Commission (ITC), successfully arguing before the Federal Circuit Court of Appeals, or obtaining an outright win on liability grounds in the fabled Western District of Texas, he has secured scores of victories for his clients.

Tim first-chairs all of his cases, securing trial wins and preliminary injunctions, forcing adversaries to stipulate to noninfringement, winning summary judgment awards, prevailing in claim-construction arguments, and securing substantial attorneys' fee awards. He routinely leads joint defense groups involving some of the largest and most sophisticated companies and law firms in the country. His national high-stakes practice, aggressive but fair approach, exceptional advocacy skills, and impressive win-loss record have all contributed to the strong rapport he has built with clients and colleagues.

Tim has successfully litigated dozens of trade secret disputes involving military weaponry and defense systems, aerospace products, and financial technologies, and has extensive experience in inter partes reviews (IPRs) and other post-grant proceedings. Tim maintains a thorough understanding of the search and archiving platforms used by modern corporations, enabling him to provide counsel to more than 100 global businesses, including two Fortune 15 companies, on adopting and implementing lawful complaint information management programs and e-discovery and litigation readiness initiatives.

Sonora Carroll Associate

Washington, D.C.

Sonora's practice includes a diverse range of complex litigation, regulatory enforcement, and government-initiated investigation matters. She also maintains an active pro bono practice.

Sonora received her J.D. from the Howard Law School in Washington, D.C. While in law school, she participated in the Howard Criminal Justice Clinic where she represented indigent individuals charged with misdemeanors in Washington, D.C. Superior Court. Sonora was also a student attorney in the Howard Civil Rights Clinic where she contributed to an amicus brief in the landmark case Dobbs v. Jackson Women’s Health Organization.

Connor J. Carroll Senior Associate

New York

Avery Cartwright Associate

Los Angeles

Avery has experience assisting with various aspects of litigation, including pre-litigation engagement, legal research and analysis, motion practice, and discovery disputes. With a background in biomedical engineering, she provides expertise in matters involving a wide range of technologies, from life sciences to computer programming.

Avery graduated cum laude from the Sandra Day O'Connor College of Law at Arizona State University. While at ASU Law, she served as the President of the Intellectual Property Students' Association, Co-Chaired an ASU Law Event hosting United States Patent and Trademark Office Director Kathi Vidal and several Patent Trial and Appeal Board judges, and was a Fellow at The McCarthy Institute, ASU Law's premier Intellectual Property research organization. She also served as a Limited Recognition Practitioner in the Lisa Foundation Patent Law Clinic, in which she provided supervised legal services, representing pro bono clients before the United States Patent and Trademark Office. She obtained her B.S.E. in Biomedical Engineering from Arizona State University, where she earned the Moeur Award for achieving a cumulative undergraduate GPA of 4.0.

Prior to joining Orrick, Avery served as a Judicial Law Clerk for the Honorable James A. Teilborg in the United States District Court, District of Arizona. In that role, she addressed complex legal issues in numerous areas of law, including patent litigation, employment disputes, civil rights actions, and administrative law. From this experience, Avery developed valuable skills in legal writing and in handling all stages of litigation, from the motion to dismiss stage through to trial.

Rebecca Caspar-Vazzoler Career Associate

New York

She supports clients in the energy and infrastructure spaces through development, financing, construction and operation of their projects, often working to develop novel and bespoke legal solutions. 

Jean-Paule Castagno Partner

Milan

Jean-Paule has more than 20 years of proven experience in white collar and corporate investigation, managing all phases of crisis management, such as internal investigations – including those of a cross-border nature –, the court defence in the context of criminal proceedings and the sanction proceedings before the Supervisory Authorities, in the interests of both individuals and legal entities (according to the D. Legislative Decree no. 231/2001). Jean-Paule advises clients in high-profile and complex cases with specific reference to anti-money laundering, financial crimes, false accounting, bankruptcy offenses, tax crimes, corruption and bribery in both the public and private sector, environmental crimes, occupational health and safety offenses, intellectual property crimes, data protection and privacy crimes/cybercrime, and import/export sanctions.

Thanks to her broad experience in conducting internal investigation and assisting individuals and legal entities in criminal and sanctions proceedings, she has been involved in advising Italian and foreign companies to address potential compliance risks, in performing due diligence focused on risk management and compliance risk in the context of extraordinary transactions and IPOs as well as in preparing and updating compliance programs (adopted under Law No. 231/2001) and in leading relative training to the board and to the employees.

She has also been appointed as member and chairwoman of the surveillance committees (Organismo di Vigilanza) of many Italian and foreign companies.

Christina Catzoela Partner

Seattle

In the four years prior to joining Orrick, Christina acted as Senior Corporate Counsel to Zillow Group, Inc. While at Zillow Group, Inc., Christina focused her practice on technology transactions, public reporting and compliance.

She started her practice as a corporate associate in the Silicon Valley office of Gunderson, Dettmer, Stough, Villeneuvue, Franklin & Hachigian, LLP.

David Chamberlin Managing Director of Strategic Communications Advisory Team

Houston

David collaborates with Orrick’s legal advisory teams, including the litigation, regulatory and transactional practices to provide strategic business guidance to clients facing critical situations. He helps clients address reputational challenges and maximize the opportunities affecting their organizations and stakeholders. He serves as a trusted advisor to the C-suite and Boards across numerous industries around the world. He develops strategies for Congressional hearings, corporate layoffs, federal investigations, mergers and divestitures, multi-country recalls, executive transitions, organizational change management initiatives, cybersecurity and privacy incidents and legal and financial crises.

Prior to joining Orrick, David served as the Chief Marketing Officer at SonicWall, a global cybersecurity leader, where he revamped the marketing, communications and government relations functions. He also served as PNC Financial Services Group’s Chief Communications Officer where he modernized the function and led internal and external communications, corporate social responsibility/ESG messaging, social media strategies, sponsorships and employee recognition. He also led public relations and communications for the credit card business at JPMorgan Chase and served as the Head of Global Communications for Nortel.

As a consultant, he helped launch and lead the  global Data Security & Privacy Group at Edelman. He served as the general manager of Edelman’s Dallas, Texas and Shanghai, China offices and led the firm’s global Financial Comms & Special Circumstances and Crisis & Risk practices. He also served as the North American head of MSL Group’s Issues & Crisis Management Practice. David has appeared on CNN, ABC, PBS and several other broadcast outlets. He has been published in The Wall Street Journal, New York Times, USA Today, The Los Angeles Times, Newsweek and Forbes.com. His work has earned several awards, including being named to PRWeek’s Global Power Book and 40 Under 40, as well as earning their inaugural Corporate Public Relations Team of the Year award. He is a regular speaker at conferences and universities around the country

A native of Springfield, Ohio, David has three children and lives with his wife in the Dallas, Texas area. Away from the office, he enjoys spending time with his family, listening to music and cycling.

Tony Chan Partner

Washington, D.C.; Boston; New York

Tony regularly advises clients on mergers and acquisitions (M&A), private equity, growth equity, and venture capital transactions, as well as on corporate governance, joint ventures and corporate finance.

His clients include global strategic buyers and sellers, as well as financial sponsors and their portfolio companies in the life science, healthcare, investment management, technology and video game industries.

Tony has been recognized for his life sciences and M&A work by a number of notable publications, including The Legal 500 US, Law360, IFLR1000 and Legal Media Group. In particular, Law360 highlighted his work in navigating the complex life sciences industry and key partnership negotiations between biotechnology and drug companies.

In addition, Tony sustains an active pro bono practice, serving as counsel to nonprofit organizations such as Aequitas, APAI Vote, Chefs Stopping Asian American Hate, Rebuilding Together Philadelphia, the Philadelphia Film Society, and the Harvard Asian Alumni Alliance. Tony also serves as an adjunct professor at Georgetown Law School where he has taught Takeovers, Mergers and Acquisitions since 2015.

Steffi Chan Senior Associate

San Francisco

Steffi has participated as bond counsel, disclosure counsel and underwriter’s counsel on a variety of transactions including general obligation bond financings, revenue bond financings and lease financings for school districts, community college districts, local government and state agency clients.

Lowell Chandler Associate

Washington, D.C.

Lowell's practice centers on drafting and negotiating a wide range of documents related to renewable energy project development, including power purchase agreements (PPAs), virtual PPAs, energy storage service agreements, tolling agreements, and engineering, procurement, and construction contracts. He also supports clients with interconnection, transmission, and regulatory matters. Leveraging his regulatory and appellate expertise, Lowell delivers comprehensive, forward-thinking advice to help clients anticipate and overcome obstacles.  

Before joining Orrick, Lowell served as a junior partner at a boutique law firm where he led the representation of developers of solar, wind, hydroelectric, generation-plus-storage, and biomass projects. His work involved negotiating offtake agreements, navigating complex regulatory environments before state utility commissions and the Federal Energy Regulatory Commission, and engaging in extensive appellate practice related to renewable energy project development under the Public Utility Regulatory Policies Act.

Prior to practicing law, he served as a climate policy analyst for an international non-governmental organization in Washington, D.C., where he advanced U.S. climate policy on refrigerants and contributed to amending the Montreal Protocol to phase-out hydrofluorocarbon super greenhouse gases.  

Cathleen Chang Senior Associate

Houston; Austin

In public finance matters, Cathleen has served as bond counsel and special tax counsel for a variety of transactions, including health care facilities, multifamily housing, airport, ports, transit authorities, non-profit organizations, public utilities, hospitality projects, as well as tobacco revenue securitizations. In addition to tax-exempt financings, Cathleen also represents clients in IRS audits and non-profit corporation tax matters.