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740

Practice:

  • Risoluzione contenziosi e vertenze complesse

Camille Joanne Rosca Partner

New York

Camille has represented public companies and other large national and multinational enterprises in financial services-related litigation, including Goldman Sachs, Credit Suisse, and Nationstar Mortgage LLC d/b/a Mr. Cooper, in federal and state court proceedings across the country. She has extensive experience defending clients in litigation alleging fraud, breach of contract, tort claims, class action claims, and securities law violations, including:

  • Defending sponsors and underwriters of residential mortgage-backed securities against breach of contract and securities fraud actions brought by institutional investors, securitization trustees, and regulators in federal and state courts across the United States.
  • Defending one of the largest mortgage servicers in the country against complex breach of contract claims brought by an investment management firm.
  • Defending and advising companies with class action lawsuits against consumer protection claims, including one of the world's largest investment management firms in connection with multiple consumer class action lawsuits across state and federal jurisdictions.
  • Defending one of the largest private equity firms in the country against breach of contract and statutory claims.

Prior to joining Orrick, Camille served as a law clerk to Justice Anne M. Patterson of the New Jersey Supreme Court. With her New Jersey connections, Camille has remained active in the New Jersey bar, advising and acting as local counsel in a number of pending complex litigation matters in New Jersey state and federal courts.

Camille is active in pro bono matters, including representing veterans.  She has represented clients in partnership with the National Veterans Legal Services Program and Veterans Advocacy Project. 

Camille is also one of the co-chairs of the Financial Services Network for the National Asian Pacific American Bar Association and co-leads Orrick’s DiversAbility Network.

740

Practice:

  • Finance Sector
  • Banking & Finance
  • Private Credit
  • Fintech

B. J. Rosen Partner

New York

B. J. is also the Senior Outside Legal Advisor to The Innocence Project, an organization dedicated to exonerating wrongly-convicted prisoners through DNA testing and reforming the criminal justice system to prevent future injustice.

740

Practice:

  • Finance Sector
  • Employment Law & Litigation
  • Discriminazione, molestie e ritorsioni
  • Pay Equity
  • Whistleblower & Corporate Investigations
  • Retribuzione oraria

Jill Rosenberg Partner

New York

She handles complex individual cases, as well as class actions and systemic government investigations. She represents a broad range of companies, including employers in the securities industry, banks and financial institutions, accounting firms, law firms, and employers in the technology and media industries. Jill also has particular proficiency in the representation of nonprofit entities, including colleges, universities, hospitals, foundations and cultural institutions.

She designs and conducts training programs for clients and frequently speaks on employment law issues for employer and bar association groups such as National Employment Law Institute, Practising Law Institute, National Association of College and University Attorneys and the New York State Bar Association.

740

Practice:

  • Finance Sector
  • Supreme Court & Appellate
  • Proprietà intellettuale
  • Risoluzione contenziosi e vertenze complesse
  • White Collar, Investigations, Securities Litigation & Compliance
  • Antitrust & Competition
  • Life Sciences & HealthTech

E. Joshua Rosenkranz Partner

New York

Josh has been named American Lawyer's “Litigator of the Year” twice, in addition to being a finalist for 2022 and 2025. In 2012, the magazine dubbed him “the Defibrillator” based on his streak of appellate wins for companies that “appeared to be at death’s door,” and in 2017 it declared, he “still deserves the moniker we once gave him.”

In 2014, The Financial Times named Josh one of the 10 most innovative lawyers in the North American legal sector for his work “demystify[ing] the technical issues” and securing a victory in the blockbuster Federal Circuit appeal, Oracle v. Google. Chambers USA has reported, “He wins accolades for his ‘brilliant analysis and judgment.’ Clients appreciate how he ‘rethinks every case from the ground up,’ and add: ‘He can take the most complicated legal or technological issue and present it in a way that seems like common sense.’” Another edition of Chambers USA added: “‘His briefs are quite simply beautiful,’” and “clients describe his courtroom presence as ‘both commanding and accessible at the same time.’ He has the ‘perfect combination of persuasiveness, intelligence, wit, and deference.’”

Josh's practice covers a wide range of subjects, including intellectual property, financial services, securities, privacy, antitrust, federal preemption, insurance law, corporate governance, criminal law, and constitutional litigation. Among his recent clients are Cisco, Credit Suisse, Cox Communications, DISH Network, Genentech, Gilead, Johnson & Johnson, JPMorgan Chase, Microsoft, Mozilla, Oracle, Sonos, and Royal Bank of Scotland.

Clients turn to Josh to win the highest stakes appeals, including appeals in cases that threaten the very survival of a business. For example:

  • He represented Microsoft in an international cause célèbre in the U.S. Supreme Court challenging the U.S. Government’s claim that it can serve warrants for emails stored overseas.
  • He represented DISH Network in one of the most high-profile patent appeals in the country, successfully overturning an injunction that threatened the company's life.
  • He has been lead counsel in multiple cases either defending or challenging verdicts over $1 billion.
  • He represented Facebook in the high-profile battle waged by the founder's Harvard classmates, the Winklevoss twins, who laid claim to the idea for Facebook, winning a ruling from the Ninth Circuit to end the lawsuit.
  • He won a landmark victory in a Supreme Court case that rescued the estimated $60 billion U.S. market of copyrighted goods manufactured abroad.
  • He represented 36 law schools in a high-profile Supreme Court case against the Department of Defense.

Josh was the founding president and CEO of the Brennan Center for Justice at New York University School of Law, one of the country’s foremost public interest firms. Over the course of eight years, he was the Brennan Center’s chief strategist on litigation and public policy advocacy. Before that, Josh founded the Office of the Appellate Defender, a public defender office specializing in criminal appeals.

Erica Rosenthal Deputy General Counsel

New York

Erica draws on deep experience in legal ethics and litigation. She served as Staff Attorney with the New York State Commission on Judicial Conduct, where she investigated and prosecuted judges for ethical violations. Prior to joining Orrick, she was Deputy General Counsel at Foley & Lardner, advising the firm on complex legal ethics, regulatory, compliance, procurement, and other professional responsibility and risk management issues. She began her private practice career as a litigator at Morvillo, Abramowitz and Gibson, Dunn.

Erica clerked for the Hon. Peter K. Leisure of the U.S. District Court for the Southern District of New York and was an Adjunct Professor of Legal Writing & Research at Fordham University School of Law.

Ari Roytenberg Senior Associate

New York

Ari's experience includes supervising cases through all phases of litigation, from pre-litigation strategy through appeal. Most recently, Ari served as lead counsel to an aerospace defense company in litigation that began in New York State court and continued through a six-month trial in bankruptcy court in connection with a $1.3 billion restructuring transaction. His courtroom advocacy, briefing strategies, and fact and expert depositions have helped secure favorable outcomes to a number of clients involved in high-stakes disputes.

Before joining Orrick, Ari was an associate with Quinn Emanuel Urquhart & Sullivan LLP and served as a law clerk to Judge Richard M. Berman on the United States District Court for the Southern District of New York.

450076

Practice:

  • Proprietà intellettuale
  • Patents
  • Life Sciences & HealthTech
  • Supreme Court & Appellate

Irena Royzman, Ph.D. Partner

New York

With a Ph.D. in biology from MIT and the Whitehead Institute, where she was a NSF fellow, Irena represents plaintiffs and defendants in their most complex pharmaceutical and biotech patent cases. Over the last 20 years, pharmaceutical and biotechnology innovators have relied on Irena again and again for cases involving small molecules, biologics, recombinant DNA technology, gene therapy, gene editing, manufacturing processes, formulations and drug-eluting medical devices, including numerous multi-billion dollar cases involving many of the world’s best-selling drugs.

Irena has significant experience in litigation under the Hatch-Waxman Act (ANDA and 505(b)(2) actions) and the Biologics Price Competition and Innovation Act (BPCIA), as well as inter partes review (IPR) proceedings, license disputes and matters with parallel ex-U.S. litigation and proceedings in foreign patent offices. Irena also helps life sciences companies and organizations develop the law in the most important cases for the biopharma industry. She has been principal counsel on numerous amicus briefs to the United States Supreme Court and the Federal Circuit in key biopharma cases.

For plaintiffs, Irena has successfully defended generic challenges to patents protecting blockbuster medical therapies, including multi-billion dollar cancer, antiviral, diabetes and anti-psychotic drugs, including recently obtaining attorneys’ fees in a hard-fought ANDA action. She also represents innovators in biosimilar litigation from its outset, including in some of the first cases under the BPCIA involving antibodies. Irena also represents clients in innovator vs innovator disputes. For defendants, she defeated a $530 million claim of patent infringement of a competitor’s biotech patent, obtaining dismissal of all claims and discovery sanctions against the patent owner. In another high-stakes case, she obtained summary judgment of noninfringement and exclusion of plaintiff’s experts under Daubert as well as a full award of attorneys’ fees. A registered patent attorney, Irena also handles inter partes review (IPR) proceedings. For patent owners, she has obtained denial of IPR for patents protecting blockbuster drugs and has leveraged IPR for defendants to obtain freedom to operate.

Irena also coordinates U.S. proceedings with parallel ex-U.S. litigation and proceedings in foreign patent offices, recently obtaining freedom to operate for a biotech innovator’s gene therapy. She provides strategic counseling in biologics and pharmaceuticals and advises clients on their IP portfolios and transactions. Irena also represents clients in high-stakes license disputes involving biotech patents, and, in a dispute concerning the use of a recombinant protein as an enzyme replacement therapy, obtained one of the largest settlement awards over the life of the contract.

Chambers USA has recognized Irena as a leading lawyer in intellectual property, where clients have described her as “excellent,” “knowledgeable, aggressive,” “knows the science forward and backward” and “an incredibly smart lawyer.” Benchmark Litigation named her one of the “Top 250 Women in Litigation” for the last eight years and a litigation star in intellectual property. Irena was also named to the Crain’s New York Business list of “Notable Women in Law.” She is also recognized as a leading lawyer by Legal 500. Irena writes and lectures widely on biopharma patent issues and biosimilar litigation. Irena also is frequently quoted on patent-related issues, including in the Washington Post, Financial Times, Nature Biotechnology, Bloomberg and Pink Sheet.

740

Practice:

  • Supreme Court & Appellate

Daniel A. Rubens Partner

New York

Danny's practice focuses on appellate litigation. He has led the drafting on dozens of appellate briefs, and regularly argues appeals in state and federal courts. Danny has extensive trial litigation experience as well, with an emphasis on dispositive motions, preserving appellate issues, and developing creative legal strategies.

Danny’s work has covered a wide range of subject areas, including securities, bankruptcy, intellectual property, arbitration, class actions, and criminal law. He has a deep understanding of appeals and critical motions in financial services litigation, and in recent years has played a key role in representing financial institutions in major RMBS cases brought by trustees, investors, and monoline insurers. His financial services clients include Credit Suisse, Goldman Sachs, Mr. Cooper, and Ocwen. He also represents leading technology companies in precedent-setting cases involving antitrust law and ballot initiatives, as well as other complex commercial litigation.  In addition, Danny is an experienced bankruptcy litigator, having represented various debtors and creditors in fraudulent transfer cases and other contested insolvency-related matters involving U.S. and foreign law.

Danny is a member of the Second Circuit's pro bono panel and maintains an active pro bono practice focusing on criminal, immigration, racial justice, and LGBTQ+ rights matters in the Supreme Court and other appellate courts. He was recently recognized by the National LGBTQ+ Bar Association as a “Best LGBTQ+ Lawyer Under 40,” by the New York Law Journal as a Rising Star, and by LawDragon in its inaugural 500 X – The Next Generation listing.  As part of his commitment to diversity, equity, and inclusion, Danny serves as a mentor for The Appellate Project, an organization focused on empowering law students of color to thrive in the appellate field. He has also served as an Orrick ambassador for the Move The Needle Fund, a collaborative effort designed by Diversity Lab to create a more diverse and inclusive legal profession.

Before joining Orrick, Danny served as a law clerk to U.S. Supreme Court Justice Ruth Bader Ginsburg, Judge Robert A. Katzmann of the U.S. Court of Appeals for the Second Circuit, and Judge Jed S. Rakoff of the U.S. District Court for the Southern District of New York. Following his clerkships, he was selected to represent the American Inns of Court as a Temple Bar Scholar in London.

740

Practice:

  • Mergers & Acquisitions
  • Capital Markets
  • America Latina
  • Life Sciences & HealthTech

David M. Ruff Partner

New York

David advises private equity funds, their portfolio companies and a broad range of public and private technology, energy and life sciences companies in domestic and cross-border M&A, minority and majority investments, joint ventures and other complex transactions.
740

Practice:

  • Finance Sector
  • White Collar, Investigations, Securities Litigation & Compliance
  • Contenzioso titoli, class action e cause azionisti
  • Financial Services Litigation
  • Government Investigations and Enforcement Actions
  • Indagini interne

Paul F. Rugani Partner

Orange County; New York; Seattle

Legal 500 touts Paul as a recommended attorney for Securities Litigation, observing that he is “among the most creative and strategic lawyers” who always has “an eye on the end game.”  Paul achieved American Lawyer Litigator of the Week recognition as part of a team that achieved a ground-breaking New York Court of Appeals victory that substantially reduced financial exposure in RMBS repurchase litigation.

Leader of Orrick's Securities Litigation practice and deputy leader of the Firm's Financial Services Litigation practice, Paul has extensive experience representing clients in securities class actions, shareholder derivative lawsuits, commercial contractual disputes and other complex litigation matters at both the trial and appellate levels, as well as in connection with internal, government and regulatory investigations. Paul also counsels domestic and foreign accounting firms on matters related to state CPA licensing and state board regulation.

740

Practice:

  • Employment Law & Litigation
  • Compensation & Benefits

Chanani Sandler Of Counsel

New York

Chanani advises multinational companies across all industry lines on a variety of employment-related matters and implementation of global equity compensation programs. He globally manages large multi-country and large multi-function HR projects.

From an employment law perspective, Chanani advises his clients on a wide range of employment-related matters outside the United States, including global/local offer letters and employment contracts, rollout of HR policies and employee handbooks as well as termination and settlement agreements. His work also covers advising clients hiring, HR data privacy compliance, discrimination risks, as well as performance management and terminations. He also works with his clients to consider the employment-related impact of, and undertake due diligence for, cross-border corporate transactions, including mergers and acquisitions, spin-offs, and IPOs.

Chanani also counsels his clients on how to effectively design, implement, communicate and administer equity-based compensation programs and other long-term incentive awards to their employees and other service providers worldwide. His work covers securities law, foreign exchange, employment, tax and other compliance requirements related to these programs. He also provides services in the areas of corporate tax planning, cross-border tax planning, payroll support and employee education with respect to global equity programs, including in the context of corporate transactions.

He has presented at industry educational forums, such as the National Association of Stock Plan Professionals (NASPP) and Global Equity Organization (GEO), on topics related to tax compliance as well as effective design, implementation and administration of global equity-based awards and other long-term incentive plans.