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  • Complex Litigation & Dispute Resolution

James V. Aiosa Counsel Complex Litigation & Dispute Resolution

New York

For more than 25 years, James Aiosa has represented clients in national and international complex toxic and mass tort litigation, including in state and federal class actions, multi-district litigation, and appeals, involving military, commercial/agricultural, and consumer products and associated chemical compounds.

Jim has deep case management experience, serving as lead coordinating counsel in litigation involving chemical exposures, environmental contaminants, herbicides, pesticides, and fungicides, as well as other chemicals, compounds and products considered persistent, bioaccumulative, and toxic.

Jim has also represented large commercial insurance companies in toxic tort, environmental, product liability, and property damage matters, including cases involving PCBs, TCE, asbestos, and tobacco, as well as employment discrimination class action claims.

Serving as lead counsel, Jim has had extensive involvement in a range of complex mass tort and class action products liability litigation, both foreign and domestic, involving military, consumer, and commercial/agricultural products containing dioxins and furans, hexachlorobenzene (HCB), pentachlorophenol (PCP), arsenic, cacodylic acid, and other organic arsenicals. He has defended chemical product manufacturers against claims involving cancers, endocrine-related disorders, neurological complaints, neurodevelopmental deficiencies and other alleged multi-generational effects, pulmonary and cardiovascular diseases, diabetes, fear of future diseases, and medical monitoring. Jim also has prodigious experience in developing the legal and scientific responses to such claims, including those for medical monitoring and future medical surveillance.

Jim has played an integral role in the development of his clients’ medical and scientific defenses and trial strategies relating to these issues, including the identification and development of medical and scientific expert witnesses and associated arguments and evidence. In the course of his efforts, Jim has worked closely with a range of world-class scientists and clinicians to apply efficiently and effectively principles of toxicology, epidemiology, risk assessment, and biostatistics, in the defense of his clients. Jim also has extensive experience addressing the complex procedural and jurisdictional issues, obstacles, and opportunities frequently presented by complex toxic tort litigation, particularly those venued internationally, including by developing and executing effective strategies for addressing such challenges and controversies both pre-and-post-litigation.

Jim has written extensively on complex/mass tort and related issues, and his articles have appeared in such publications as Mass Torts, LJN’s Product Liability Law & Strategy, DRI – The Voice of the Defense Bar, among other media. Jim serves on the Adjunct Board of Advisors of the US-Korea Law Foundation and was formerly an appointed member of the Nassau County Asian American Economic Advisory Commission.



  • Energy
  • Infrastructure

Walter Alarkon Managing Associate Energy, Infrastructure

New York

Walter counsels private and public companies in their roles as sponsors, investors, lenders, and borrowers in energy and infrastructure projects.

His experience includes drafting and negotiating documentation specific to project finance, tax equity finance, bond offerings, and general corporate matters.

Lauren Allen Associate

New York

Lauren is an associate in the White Collar, Investigations, Securities Litigation & Compliance group in Orrick's New York office.



  • Complex Litigation & Dispute Resolution

Robert Allsbrook Of Counsel Complex Litigation & Dispute Resolution

New York

Colby Allsbrook is Of Counsel in the New York office and a member of the Complex Litigation and Dispute Resolution Group.

Colby has deep experience in financial services, asset-backed security and mortgage-related litigation, and has been at the forefront of litigation arising out of the financial crisis.

Prior to joining Orrick, he was a Director and senior litigation counsel at Credit Suisse Securities (USA) LLC, where he chaired the firm's Mortgage Securities Litigation Task Force and helped direct the bank's litigation response to the mortgage crisis. He previously practiced law in the New York offices of King & Spalding and Cadwalader, Wickersham & Taft.



  • Structured Finance
  • Banking & Finance
  • Fintech

Howard S. Altarescu Partner Structured Finance, Banking & Finance

New York

Howard Altarescu is a partner in Orrick's Finance group. He co-leads the Firm’s global Fintech team, which is focused on advising a wide array of fintech platforms and other businesses.

Howard has previously served as Orrick's Finance Sector Leader, responsible for implementing the firm's strategy to provide distinctive transactional, litigation and regulatory services to financial institution clients globally, as well as co-head of the firm’s Finance Business Unit. In these roles, Howard has a broad strategic, advisory and business development role at the firm, drawing on many years of experience, both in law firms and as a banker helping clients develop innovative financial solutions to meet their objectives. Howard currently advises bank and non-bank financial institutions in connection with innovative capital markets, debt financing and other transactions, as well as on the implications of financial markets regulation and developments. Most recently, Howard has focused with clients on the LIBOR transition and has authored a number of client alerts on the transition that can be found at In addition, Howard is co-chair of the Finance and Securitization working group of MOBI (the Mobility Open Blockchain Initiative), which will assess the potential value proposition of blockchain, work on standards, and potentially, help coordinate logistics necessary to carry out a pilot program for uses cases in finance and securitization. 



  • Restructuring
  • Bankruptcy Litigation
  • Banking & Finance

Peter J. Amend Senior Associate Restructuring, Bankruptcy Litigation

New York

Peter Amend is a senior associate in the Firm's Restructuring practice, where he has advised a variety of clients, such as ad hoc creditor groups, debtors and equity owners, in restructuring-related matters.

Upon graduation from law school, Peter clerked for the Hon. Martin Glenn, United States Bankruptcy Court for the Southern District of New York. Prior to joining Orrick, Peter was an associate at White & Case LLP in the firm's financial restructuring and insolvency practice.

Peter is a graduate of Brooklyn Law School where he served as executive articles editor for the Brooklyn Journal of Corporate, Financial, & Commercial Law. Peter is also a frequent author and contributor to the Distressed Download, Orrick's bankruptcy blog.  Some of Peter's works have been published in nationwide publications such as Law360.



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

Candice A. Andalia Senior Associate Trials, Mass Torts & Product Liability

New York

Candice Andalia is a Senior Associate in Orrick's New York office and a member of the firm's Complex Litigation & Dispute Resolution, Mass Torts and Product Liability, and Trials practices. Candice specializes in managing and coordinating national defense and strategy for clients in the manufacturing, technology, and financial sectors, with particular focus on developing and implementing strategy as it pertains to expert testimony.

She represents clients in all phases of complex multi-party, consolidated, and class action litigation, and has successfully handled significant actions involving the prescription drug and consumer products industries in mediation, arbitration, and federal and state courts, both at the trial and appellate levels. Candice also has extensive experience in white collar, investigations, and securities litigation including allegations of off-label promotion, anti-kickback statute violations, False Claims Act violations, Foreign Corrupt Practices Act violations, and other issues related to sales, marketing, and pricing practices. While Candice's most recent engagements include acting as a member of the Orrick teams successfully defending Johnson & Johnson and DISH, she has:

  • obtained a complete victory for a pharmaceutical manufacturer in nationwide class action asserting negligent manufacture;
  • successfully defended a biologics manufacturer in a class action alleging defective design;
  • represented several pharmaceutical and medical device manufacturers during the course of federal investigations; and
  • settled heavily contested breach of contract claims and counterclaims involving a milestone agreement for an investigational new drug.

In addition to her practice, Candice maintains an active pro bono practice handling civil and criminal appeals, with a special focus on cases in the service of Spanish-language speakers.

Candice received her JD from Cornell and two bachelors' degrees from Yale University.



  • Complex Litigation & Dispute Resolution
  • International Arbitration & Dispute Resolution
  • Mass Torts & Product Liability

John Ansbro Partner Complex Litigation & Dispute Resolution, International Arbitration & Dispute Resolution

New York

John Ansbro is a seasoned litigator based in New York specializing in complex commercial litigation representing large, sophisticated clients in their most important matters in state and federal courts across the country. He has secured over $1 billion in damages when acting as plaintiffs’ counsel, and he has secured dismissals at the pleading stage and summary judgment dismissals when defending his clients.

A front line advocate, John has deep experience in all aspects of litigation in the trial courts, on appeals, and arbitration. He has handled a wide range of matters that include a host of different contract disputes, issues arising from the 2008 Financial Crisis involving residential home mortgage backed securities (RMBS), bankruptcy litigation, insurance recovery, consumer class actions, and commercial real estate foreclosure. John has also served as an arbitrator on an ICC International Court of Arbitration panel in a cross-border contract dispute.

John currently is lead counsel to Hemlock Semiconductor Operations LLC (majority owned by Dow Corning Corporation and Corning, Inc.) in seven actions pending in Michigan and New York courts seeking $3 billion in damages where Hemlock asserts breaches of long-term supply agreements against defendants located in Japan, Germany, China and Taiwan. In a case of first impression in Michigan, John won the dismissal of an attempt by a Japanese conglomerate to avoid $1.4 billion in purchase obligations on the theory that alleged illegal acts by the Chinese Government constituted an “act of government” under the parties’ force majeure provision. The Michigan Court of Appeals unanimously affirmed that dismissal. In another of these actions, John recently obtained summary judgment against a German company along with a damages award of $793 million. John regularly travels to Japan to coordinate strategy with the team of Japanese attorneys defending Hemlock in the Tokyo District Court against alleged breaches of the antitrust laws of Japan.

Since 2011 John has been a senior member of the Orrick team that represents Credit Suisse Securities USA in actions brought by monoline insurers seeking to deny coverage under financial guarantees they issued covering a number RMBS. He also defends Credit Suisse in several actions brought by RMBS investors alleging breaches of representations and warranties. As lead counsel, John obtained a dismissal—from the bench, after lengthy argument—of a $46 million fraud action in which the issuer of a collateralized debt obligation (CDO) claimed it was fraudulently induced to guarantee a credit default swap referencing $396 million of CDO certificates underwritten by Credit Suisse. John demonstrated to the court that based upon public information and other facts known to the issuer, it was on sufficient notice of the alleged fraud well before the expiration of the statute of limitations. John argued and won a unanimous appellate affirmance of that dismissal.

John is also a senior member of Orrick’s team representing one of the nation’s largest mortgage loan servicers. This engagement covers all of the company’s RMBS related legal issues, including allegations by various certificate holders and RMBS trustees of faulty loan servicing under the trust agreements. None of these allegations have been successful.

Beyond these examples, John’s depth of experience includes handling matters in a wide variety of industries, as shown by the examples below of his engagements.

Prior to joining Orrick, John was a Litigation Associate at Donovan Leisure Newton & Irvine LLP.



  • Capital Markets
  • Technology Companies Group
  • Debt Capital Markets
  • Equity Capital Markets
  • Corporate Governance
  • M&A and Private Equity
  • Restructuring

Stephen Ashley Partner Capital Markets, Technology Companies Group

New York

Stephen Ashley is a partner in the New York office and a member of the firm's Capital Markets practice. He advises clients on a wide range of securities law matters and regularly represents both issuers and underwriters in both domestic and cross-border capital markets transactions.

Stephen's experience includes public offerings and private placements of common and preferred equity and investment grade, high yield and convertible debt securities, as well as liability management transactions such as exchange offers, tender offers and consent solicitations. He also advises clients on various compliance, corporate governance, stock exchange listing and other general corporate matters, while working closely with Orrick’s M&A and Restructuring teams on securities related issues.

He has advised companies from a wide range of industries, including the information technology, software, finance, consumer products, biotechnology, life sciences and pharmaceuticals, energy, infrastructure and transportation sectors.

Stephen routinely works on high profile transactions that have been recognized for their complexity and execution. IFLR1000 recognized Stephen as a notable Practitioner in 2019 and 2020. Legal500 reported in 2016 that clients say Stephen “is very responsive, does thorough research and speaks in plain English.”

Stephen is a member of Orrick's opinion committee.



  • Mortgage Related Securities
  • Structured Finance

Marie Athaide Special Counsel Mortgage Related Securities, Structured Finance

New York

Marie Athaide is a securitization attorney in the New York office representing issuers and underwriters in connection with private and public offerings of asset-backed securities. Her practice focuses on transactions involving a variety of residential mortgage loans, including non-qualified mortgages.

In addition, Marie has experience in credit risk transfer securities, re-securitizations and complex securitizations of Property Assessed Clean Energy (PACE) Assessments, commercial mortgage loans, credit card receivables and utility receivables. She has represented financial institutions in connection with whole loan purchases and sales and advised mortgage loan servicers in connection with servicing operations and servicing rights transfers.


  • White Collar, Investigations, Securities Litigation & Compliance

Kenton Atta-Krah Managing Associate White Collar, Investigations, Securities Litigation & Compliance

New York

Kenton Atta-Krah is an associate in the White Collar, Investigations, Securities Litigation & Compliance practice group.

Kenton represents clients in civil litigation and white collar matters, including domestic and international internal corporate investigations and regulatory agency investigations. He has trial and litigation experience before the United Nations Dispute Tribunal in New York, and has had experience responding to congressional subpoenas, investigating allegations of sexual abuse by faculty members at an educational institution, and responding to an institutional data breach affecting thousands of people in all 50 states and in several U.S. territories and jurisdictions.

Kenton is active in community service, in particular, through the representation of incarcerated individuals under the Criminal Justice Act (“CJA”), where he has been involved in Section 1983 civil rights actions and other civil matters.

Prior to joining Orrick, Kenton was an Associate at Day Pitney LLP. While in law school, he was a research assistant to Professor Doriane Coleman and interned with the CWS-RDU Immigration and Refugee Program, which provides legal assistance to individuals and families on immigration matters. He also spent time as a Summer Associate at Bentsi-Enchill, Letsa & Ankomah, a law firm in Accra, Ghana.

Nicholas Bagley Associated Law Professor

New York

Nicholas Bagley is an assistant professor of law at the University of Michigan Law School and an Associated Law Professor in Orrick’s Supreme Court and Appellate Litigation practice.

Nick was an attorney with the Appellate Staff in the Civil Division of the U.S. Department of Justice, where he argued a dozen cases before the U.S. Courts of Appeals and served as lead counsel in many more. Among many other matters, Nick successfully defended the Honest Leadership and Open Government Act before the D.C. Circuit (National Association of Manufacturers v. Taylor), served on the litigation team charged with defending the Family Smoking Prevention and Tobacco Control Act from a First Amendment challenge (Discount Tobacco City & Lottery v. United States), appeared before the Second Circuit in an important case involving the status of digital downloads under the copyright statutes (United States v. ASCAP), and represented the government in two significant False Claims Act suits in the Fifth Circuit (United States ex rel. Longhi v. Lithium Power Technologies, Inc.; United States v. Caremark).

Nick served as a law clerk to Justice John Paul Stevens of the U.S. Supreme Court and Judge David S. Tatel of the D.C. Circuit. Before getting a law degree at New York University Law School, he joined Teach for America and taught eighth-grade English at a public school in the South Bronx.

Nicholas teaches and writes in the areas of administrative law, regulatory theory, and health law. His work has appeared in Harvard Law Review, the Columbia Law Review, and the Georgetown Law Journal. His article, “Centralized Oversight of the Regulatory State,” which he coauthored with Richard Revesz, was selected as the best article in the field in 2006 by the American Bar Association’s Section on Administrative Law and Regulatory Practice. He won the law school’s teaching award in 2012.