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317000

Practice:

  • Supreme Court and 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.

Practice:

  • Technology Companies Group
  • Mergers & Acquisitions

Dr. Johannes Rüberg, EMBA Partner

Munich

This includes venture and growth financings in all stages and general corporate counseling. His practice further focuses on advising strategic and financial investors on mergers and acquisitions.

Germany's leading legal directory JUVE lists Johannes as frequently recommended for both corporate law and venture capital, including a competitor's testimonial "very good expertise, pleasant cooperation" (2024/2025). Legal 500 Deutschland lists Johannes as a "recommended lawyer" for venture capital (2024), including the testimonials "very supportive and a pleasure to work with", "extremely conscientious", and "quick response time" in its 2022 edition. Since 2021, he has been recognized by Germany's leading business daily Handelsblatt as a "Ones to Watch" lawyer for corporate law.

In addition to his work as a lawyer, Johannes has completed the joint Executive MBA program by U.S.-based Kellogg University and WHU – Otto Beisheim School of Management, Germany’s leading startup university.

Practice:

  • Complex Litigation & Dispute Resolution
  • Securities Litigation
  • Mass Torts & Product Liability

Aaron M. Rubin Partner

Orange County

An accomplished litigator, Aaron advises leading investment banks, financial institutions, mortgage servicers, non-bank lenders, and alternative asset managers on the unique issues impacting the finance sector, from major commercial disputes to securities litigation and enforcement actions. Leveraging his dispute resolution expereince, Aaron serves as a trusted partner to clients, advising on best practices for mitigating risk long before there is the threat of litigation.

In 2018, Aaron moved to the firm’s Orange County office from New York. The move served his New York-based traditional financial institution clients needing counsel on the West Coast, while also expanding his practice.

740

Practice:

  • Mergers & Acquisitions
  • Capital Markets
  • Latin America
  • 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.
228479

Practice:

  • Finance Sector
  • White Collar, Investigations, Securities Litigation & Compliance
  • 證券訴訟、集體訴訟與股東代表訴訟
  • Financial Services Litigation
  • Government Investigations and Enforcement Actions
  • Internal Investigations

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.

293041

Practice:

  • Technology & Innovation Sector

Michael Ruiz Partner

Silicon Valley; Seattle

Michael advises his clients on a broad range of legal needs, including corporate formation and structure, venture capital financings, board and stockholder relationships and exit transactions. His current and former clients are concentrated in interactive media industries including game development, Esports, AR/VR tech, 3D animation, and artificial intelligence. Michael also advises companies in the cleantech and life sciences sectors.

His favorite video game is Final Fantasy (VII), favorite board game is Twilight Imperium (IV) and favorite science fiction book is Ender’s Game.

Noah Rushin Associate

Washington, D.C.

Noah brings a detail-oriented and analytical approach to complex technical disputes. He has conducted prior art searches, analyzed chemical compositions and manufacturing processes, and drafted detailed infringement and invalidity contentions. Noah’s experience includes preparing expert reports, post-hearing briefs, and trial demonstratives, as well as developing deposition strategies and second-chairing depositions. He has participated in two trials before the International Trade Commission, assisting with examination outlines and trial exhibit negotiations.

Noah earned his J.D. from Columbia Law School, where he served as an editor of the Columbia Science and Technology Law Review. He holds a B.S. in Chemical Engineering, with distinction, from the University of Virginia, where he was a Rodman Scholar. His technical expertise is complemented by proficiency in Matlab, SQL, and other analytical tools. Noah is admitted to practice in New York and Washington, D.C.