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  • Energy
  • Corporate
  • M&A and Private Equity

Francesca Drake Senior Associate Energy, Corporate


Francesca Drake is an associate in the Corporate group and has advised on a range of cross border and domestic mergers and acquisitions, acquisition financings, fundraisings and equity capital market transactions.

Francesca has acted for international and domestic private investors and listed funds in the renewable energy sector, as well as clients in the technology and financial services sectors.



  • Energy
  • Infrastructure
  • Public Power Financing
  • Renewable Energy
  • M&A and Private Equity
  • Corporate
  • Banking & Finance

Kyle Drefke Partner Energy, Infrastructure

Washington, D.C.

Kyle is a member of Orrick’s Board of Directors and the office leader in Washington, D.C. He focuses on advising energy clients in financing, project development, and corporate transactions.

Kyle has represented clients in domestic and international financings, including syndicated credit facilities, private placements, and registered securities offerings. He has extensive experience in the development and structuring of long-term power purchase agreements with respect to thermal (nuclear, coal and natural gas) and renewable generation facilities. He has also represented clients in mergers and acquisitions (M&A), auctions, joint ventures, corporate restructurings and other general corporate matters.

Kyle has represented clients in various matters relating to the development, construction, ownership and operation of electric generation facilities in the United States, South America and Europe. His practice also includes the representation of clients seeking and obtaining substantial financing from the U.S. Department of Energy (DOE).



  • Technology Companies Group

Noa Dreymann Associate Technology Companies Group

Silicon Valley

Noa Dreymann is an associate in the Silicon Valley office and a member of the Technology Companies Group.

Noa advises companies in formation and general corporate matters, venture capital financings, mergers and acquisitions, and technology transactions, such as commercial agreements.


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

Patrick Driscoll Associate Corporate, Technology Companies Group


Patrick's practice covers a range of corporate, venture capital and private equity transactions, with a focus on technology and intellectual property-rich companies.

Patrick’s experience includes formation and early-stage corporate counselling to later stage capital financing, M&A exits and management buy-outs. He has acted for founders, investors and management teams within the software, telecommunications, fintech, renewable energy and cleantech industries.

Prior to joining Orrick, Patrick worked for five years in the Global Corporate Practice Group at an international law firm, during which he was seconded to Live Nation Entertainment where he provided legal counsel to Ticketmaster on e-commerce, advertising and consumer-rights issues.


  • Structured Finance

James Duff Special Counsel Structured Finance

Los Angeles

James represents issuers, underwriters, initial purchasers and placement agents in connection with public offerings and private placements.

Beginning in 2006, James has advised clients on a variety of asset-backed securities, including residential mortgage-backed securities (RMBS), commercial mortgage-backed securities (CMBS), re-securitizations of RMBS and collateralized debt obligations, and charter school receivable-backed securities. He has also represented municipal and state agencies for municipal bond transactions.

During the financial crisis, James advised clients on mortgage loan modifications, and advised municipal and state agencies on interest rate mode changes and bond refinancings.

Recently, James has worked on a number of RMBS and CMBS transactions.  

James is an avid triathlete and winner of a number triathlons, including the 2016 North Carolina Ironman.



  • Complex Litigation & Dispute Resolution

Deena O. Dulgerian Associate Complex Litigation & Dispute Resolution

Los Angeles

Deena Dulgerian is an Associate in Orrick’s Los Angeles office and is a member of the Complex Litigation & Dispute Resolution group.  

She works on matters with diverse clients from start-ups to the NCAA and assists her group in representing property owners in connection with various disputes. Deena is also active in pro bono matters, most recently working with non-profits in her former community of Las Vegas on immigration and constitutional issues.

Prior to joining Orrick, Deena clerked for the Honorable Nancy J. Koppe in the United States District Court, District of Nevada, and while in law school she was the Co-Founder and President of the Armenian Law Students Association. She was a member of Georgetown’s Barrister’s Council’s Alternate Dispute Resolution division, a student attorney with Georgetown's Juvenile Justice Clinic, the Executive Editor for the Georgetown Journal on Poverty Law and Policy, and wrote for the Georgetown Law Technology Review.



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

Nathan Dullum Of Counsel Complex Litigation & Dispute Resolution, Mass Torts & Product Liability

San Francisco

Nathan is Of Counsel in The San Francisco office and a member of the firm's Complex Litigation and Dispute Resolution practice. Nathan has worked on a variety of litigation matters and currently focuses on mass torts and product liability.

Nathan is a member of the Orrick team representing Johnson & Johnson as national coordinating counsel and California trial counsel in lawsuits alleging that the company's talc products contain asbestos. In October 2019, Nathan was part of the trial team named as Law360 Legal Lions for its representation of Johnson & Johnson in a suit alleging the company’s talc products caused the plaintiff’s mesothelioma.  In addition to punitive damages, the plaintiffs sought at least $45 million in compensatory damages.  After a five-week trial, a Los Angeles state court jury rejected all of plaintiffs’ claims and returned a complete defense verdict for Johnson & Johnson.

Nathan has practiced before state and federal courts and has arbitrated matters before The Financial Industry Regulatory Authority and the International Center for Dispute Resolution. In addition to litigating, Nathan also has extensive experience advising U.S. and foreign companies regarding product safety and product liability prevention.  This includes advising companies on their warnings and disclosures, developing internal compliance policies and protocols, and helping clients address customer complaints to avoid potential litigation.

Nathan joined Orrick as a summer associate in 2001. In 2007, he took a brief leave of absence to work as a prosecutor in the San Francisco County District Attorney’s Office where he tried several cases to verdict.



  • White Collar, Investigations, Securities Litigation & Compliance
  • Complex Litigation & Dispute Resolution
  • Securities Litigation, Class Actions and Shareholder Derivative Lawsuits
  • Internal Investigations
  • Corporate Governance
  • Whistleblower & Corporate Investigations
  • Class Action Defense
  • Insurance Recovery
  • White Collar
  • Trials

Daniel Dunne Partner White Collar, Investigations, Securities Litigation & Compliance, Complex Litigation & Dispute Resolution


Daniel Dunne, a partner in Orrick's Seattle office, is a member of the Litigation Division, specifically the Securities Litigation, Investigations and Enforcement Group.

Dan Dunne focuses his practice on defense of financial institutions, corporations, directors and officers, and accountants in complex litigation in federal and state courts. Dan has tried more than a dozen cases to verdict in state and federal courts.

Dan has enjoyed considerable success in high-profile national matters with the finest law firms in the country, from arguing in the Delaware Court of Chancery on behalf of Blucora’s directors, to arguing in October in the Washington Supreme Court on behalf of Credit Suisse on a critical issue of first impression under the Washington State Securities Act, to a complete victory following a two-week trial in the Western District of Washington in a major tax dispute against the United States and the Tulalip Tribes, dismissal of an activist investor proxy lawsuit against a Seattle-based bank, and an October 2018 dismissal of a National Rifle Association suit challenging a City of Seattle safe gun storage ordinance. Dan also has active matters advising Washington’s most sophisticated legal clients with respect to shareholder matters, including Microsoft, Seattle Genetics (Washington’s most successful independent biotechnology company) and HomeStreet Bank.

Dan has also been a key part of the winning Orrick team, leading the defense of Credit Suisse against an avalanche of litigation related to claims involving residential mortgage-backed securities (RMBS).

  • D: +33 1 5353 7500


  • Antitrust & Competition

Elise Durand Associate Antitrust & Competition


Elise Durand is a Competition lawyer in Orrick's Paris office.

Before joining Orrick, Elise was a legal intern in International law firms: in the Competition department at Norton Rose Fullbright and at Allen & Overy, in the Litigation & Regulatory department at DLA Piper. She was also a legal intern in the Cartel unit of the Directorate General for Competition at the European Commission and in the Europe Department of the MEDEF.



  • Litigation & IP

Lesley M. Durmann Litigation Career Associate Litigation & IP


Lesley Durmann helps companies navigate compliance risks, respond to government investigations, and win in litigation.

Her practice focuses on complex civil litigation, white collar investigations, and regulatory compliance. In addition to her significant trial experience, Lesley assists clients in conducting internal investigations, crafting effective compliance programs, and negotiating settlements with government authorities. Lesley has also worked with Orrick’s Public Policy Group to develop creative, multi-faceted solutions for innovators facing legislative and regulatory challenges.

Lesley is fluent in Portuguese and previously worked with an international law firm in São Paulo, Brazil. Before joining Orrick, Lesley also served as a policy advisor in the Oregon State Senate.



  • M&A and Private Equity
  • Corporate
  • Funds
  • Restructuring

Dr. Oliver Duys, LL.M. (UNSW Sydney) Partner M&A and Private Equity, Corporate


Dr. Oliver Duys is a member of the M&A/Private Equity Group.

He has extensive experience in complex corporate transactions including private equity and venture capital transactions, real estate portfolio deals, joint ventures and fund formation as well as restructuring. He also advises on Management Participation Programs and liability issues in this context.

Oliver Duys is Managing Partner of the German Orrick offices along with Dr. Christoph Brenner. 

Oliver Duys worked for Slaughter and May and Hengeler Mueller. Following his partnership at Hölters & Elsing since 2006, Oliver Duys is a partner at Orrick since 2008.



  • Complex Litigation & Dispute Resolution

Logan Dwyer Managing Associate Complex Litigation & Dispute Resolution

Washington, D.C.

Logan Dwyer is an associate in Orrick's Washington, D.C., office. His practice focuses on complex intellectual property litigation and appellate litigation of any nature.

Logan graduated magna cum laude from Georgetown University Law Center in May 2015.