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  • Asset Backed Securities
  • Debt Capital Markets
  • Equity Capital Markets
  • Legislative/Regulatory Participation
  • Structured Finance
  • Fintech
  • Automotive Technology & Mobility

Alan Knoll Partner Asset Backed Securities, Debt Capital Markets

New York

Alan Knoll, a partner in the New York office, is chair of the Structured Finance Group. He practices corporate securities law with an emphasis on structured finance transactions.

Alan's practice involves advising issuers, underwriters, purchasers and Boards of Directors on complex financial transactions in both publicly registered offerings and private placements. He has extensive experience with the securitization of a variety of assets, including credit cards, charge cards, consumer loans, auto loans, auto leases, dealer floorplans, aircraft and aircraft engines, and has been involved in the development of a number of novel securitization structures. Alan also has expertise in general corporate matters, including SEC reporting requirements.

Alan is co-chair of Orrick’s Opinion Committee and is a member of the firm’s Risk Management Committee and Conflicts Resolution Committee. He has also served as a member of the Board of Her Justice, an organization which provides free legal services to low-income women in New York City who suffer from abuse, and is a recipient of the Her Justice Commitment to Justice Award.



  • Employment Law & Litigation
  • Corporate
  • M&A and Private Equity

Yusuke Kobayashi Associate Employment Law & Litigation, Corporate


Yusuke Kobayashi is an associate in Orrick's Tokyo Office and a member of the Employment Law Group.

Yusuke mainly focuses on employment law advice, as well as various corporate transactions including compliance, corporate governance, mergers and acquisitions, litigation and general corporate transactions.



  • M&A and Private Equity
  • Corporate
  • Technology Companies Group

Dr. Andrea Köhler Senior Associate M&A and Private Equity, Corporate


Andrea advises national and international clients on M&A as well as Private Equity transactions and group reorganizations. She has a particular experience in the life sciences and healthcare sector.

Andrea has a particular focus on domestic and cross-boarder Private Equity and M&A transactions. She regularly advises German and international clients on corporate restructuring projects and on all aspects of corporate law. As she has profound experience in the life sciences and healthcare sector, Andrea also advises on particular sector related issues.

Prior to joining Orrick in December 2016, Andrea was Associate at the Munich office of Clifford Chance since 2014. 



  • M&A and Private Equity

Viktor Philip Kolberg Associate M&A and Private Equity


Viktor is Associate in our Munich office and a member of the practice group M&A and Private Equity. Viktor advises national and international clients on all aspects of corporate law with a focus on domestic and cross-border M&A and private equity transactions, venture capital investments as well as ongoing legal advice.



  • Supreme Court & Appellate

Katherine M. Kopp Managing Associate Supreme Court & Appellate

Washington, D.C.

Katherine Kopp represents prominent tech clients in high stakes patent appeals before the Federal Circuit. 

Katherine has focused on these high stakes appeals since she began her career at Orrick in 2010.  In that time, she has represented clients such as Dow AgroSciences LLC in two Federal Circuit victories in an ongoing patent dispute with Bayer CropScience AG; VeriFone Systems, Inc., in a successful appeal from a district court order that would have undermined its ubiquitous payment terminals; Nintendo Co. in defense of its most important product―the Wii; and EMC Corp. in obtaining the definitive pre-America Invents Act opinion addressing the improper use of joinder in patent cases. 

Christine M. Kosir Audit/Special Project Attorney

Wheeling, W.V. (GOIC)

Christine M. Kosir, an attorney at Orrick's Global Operations and Innovation Center in Wheeling, WV, manages the firm's Auditor Response Team.

Christine utilizes her extensive project management experience to work with Orrick team members in developing, implementing and managing the firm's overall audit response program.

In addition to her firm responsibilities, Christine works with Orrick's Finance teams on various transactional matters, including performing due diligence and drafting deal documents and opinions for collateralized loan and debt obligations, synthetic collateralized debt obligations and various other financial products. 

Christine is also active in her local community, serving as a Girl Scout Troop Leader.


  • M&A and Private Equity

Wendy R. Kottmeier Of Counsel M&A and Private Equity

Orange County

Wendy R. Kottmeier, Of Counsel in Orrick’s Orange County office, is a member of our M&A and Private Equity group.

Wendy R. Kottmeier advises clients in mergers and acquisitions transactions, public and private offerings of securities, commercial contracts, and general corporate guidance. She is a trusted advisor to companies across various sectors, including the technology, medical, beauty, and consumer products industries.



  • Oil & Gas
  • M&A and Private Equity
  • Energy
  • Corporate
  • Infrastructure

Adam Kowis Senior Associate Oil & Gas, M&A and Private Equity


Adam focuses on complex oil and gas transactions, including acquisitions and divestitures, joint venture/development arrangements, private equity investments, and commercial agreements.

His experience includes drafting and negotiating purchase and sale agreements, joint venture/development agreements, and upstream and midstream commercial contracts. He regularly represents domestic and international integrated oil and gas companies, independent exploration and production companies, private equity funds, portfolio companies, and pipeline companies.


  • Supreme Court & Appellate

Randy Kozel Associated Law Professor Supreme Court & Appellate

San Francisco

Randy Kozel is a professor of law at Notre Dame Law School and an Associated Law Professor in Orrick’s Supreme Court and Appellate Litigation practice.

Randy was named the Distinguished Teacher of the Year by the Notre Dame Law School Class of 2014. He also runs the Notre Dame Program on Constitutional Structure.

Randy teaches and researches in fields including constitutional law, federal courts, information privacy, and contract law, with a particular focus on the role of precedent in legal decision making. His recent scholarship exploring the connection between precedent and interpretive philosophy has been published or is forthcoming in journals including the Michigan Law Review, the California Law Review, the Vanderbilt Law Review, and the Texas Law Review. His forthcoming book, entitled Settled Versus Right: A Theory of Precedent, makes the case for using precedent to bridge interpretive disagreements.

Randy received his J.D., magna cum laude, from Harvard Law School, where he was the Articles Committee Chair of the Harvard Law Review. He served as a law clerk for U.S. Supreme Court Justice Anthony M. Kennedy and for Judge Alex Kozinski at the U.S. Court of Appeals for the 9th Circuit. He has also practiced as a litigator with a large law firm and as Special Counsel to the General Counsel at General Electric Company.

Randy is admitted to practice in California and provisionally admitted in Indiana.



  • International Arbitration & Dispute Resolution
  • Complex Litigation & Dispute Resolution

Margaretha Kramer, LL.M. Managing Associate International Arbitration & Dispute Resolution, Complex Litigation & Dispute Resolution


Margaretha Kramer, née Lawrynowicz, is a Managing Associate in the Düsseldorf office and a member of the International Arbitration Group.

Margaretha advises and represents clients in national state court and international arbitration proceedings. She furthermore acts as Administrative Secretary for Arbitral Tribunals under the ICC and DIS Rules and has extensive experience with disputes under the ICC, ICDR, ICSID, DIS and the LCIA Arbitration Rules.

Margaretha’s practice focuses on corporate, construction, distribution and energy law matters. Her experience further extends to post M&A disputes, the determination of FRAND rates in license agreements in the telecommunications sector, gas price revision in long term contracts in the LNG sector as well as layer structured insurance policies in transactional matters.

Margaretha regularly publishes on topics related to international arbitration, particularly with a focus on post M&A disputes. She frequently appears as speaker at seminars.

Prior to working with Orrick, Margaretha was research assistant at the European Legal Studies Institute in Osnabrück where she wrote and presented briefing papers on behalf of and for the European Parliament (IMCO Comit



  • Securities Litigation, Class Actions and Shareholder Derivative Lawsuits
  • White Collar, Investigations, Securities Litigation & Compliance
  • Trials

James N. Kramer Partner Securities Litigation, Class Actions and Shareholder Derivative Lawsuits, White Collar, Investigations, Securities Litigation & Compliance

San Francisco; Silicon Valley

James N. Kramer leads Orrick's Securities Litigation Practice. Jim has more than 25 years of experience defending companies, officers and directors in shareholder class actions, derivative suits and regulatory proceedings.

Jim is acknowledged by Chambers as a "Leader in Their Field" for Securities Litigation and has also been acknowledged as one of "America's Leading Litigators" by Benchmark Litigation. Benchmark has also recognized Jim in their securities rankings as a "California State Litigation Star", a "San Francisco Litigation Star", and in their "Practice Area Rankings California".

Jim has extensive experience representing companies and individuals in securities class actions, derivative actions, merger and acquisition related litigation, SEC enforcement proceedings and other complex commercial litigation. In addition, he has extensive experience representing board committees in internal investigations, including SEC- and SRO-related investigations.

Jim regularly advises companies on corporate governance, fiduciary duty and disclosure issues. He is a frequent lecturer on issues involving securities matters and class action litigation.