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  • White Collar, Investigations, Securities Litigation & Compliance

Charles J. Ha Of Counsel White Collar, Investigations, Securities Litigation & Compliance


Charles's practice focuses on a variety of commercial litigation matters and government investigations including securities fraud, shareholder derivative actions, health care fraud, and general commercial disputes.  Charles also advises on Washington corporations law and corporate governance matters.

Prior to joining Orrick, Charles was an associate at Heller Ehrman and at Cravath, Swaine & Moore. He is also a former law clerk to the Honorable Maxine M. Chesney of the United States District Court for the Northern District of California.



  • White Collar, Investigations, Securities Litigation & Compliance
  • White Collar
  • Trials

Melinda Haag Partner White Collar, Investigations, Securities Litigation & Compliance, White Collar

San Francisco

Melinda brings her leadership skill and experience to a new arena as a Partner in Orrick’s San Francisco office. She works with a team that litigates for a third of the Fortune 100 in some of the highest stakes cases in the country.

Melinda is an experienced trial lawyer with 28 years of prosecutorial and private sector experience. She has personally handled securities fraud, mail and wire fraud, bank fraud, antitrust, Foreign Corrupt Practices Act, environmental, civil rights, defense contractor fraud, health care fraud, money laundering, narcotics trafficking, and child exploitation cases. Melinda has served as lead or co-lead counsel in more than 19 jury and bench trials, including a number of complex white collar and civil rights cases. Among her most notable trial accomplishments, Melinda served as co-lead trial counsel representing the CFO of a publicly-traded pharmaceutical company who was charged with violating the federal criminal securities laws. The client was acquitted and completely vindicated following a lengthy trial. She also successfully defended at trial the former GC of a publicly-traded software company, who had been charged with federal criminal securities law violations.  Following a three-week jury trial, all charges against her client were dismissed.  While serving as an AUSA, Melinda led the federal government’s successful investigation and trial against a group of prison guards at Pelican Bay State Prison charged with violating the civil rights of inmates in their custody. 

After earning her law degree from the University of California, Berkeley School of Law in 1987, Melinda began her career as a litigation associate and then served as an Assistant United States Attorney for the Central District of California in Los Angeles. She thereafter worked as a partner in a San Francisco boutique law firm before being tapped by then U.S. Attorney Robert Mueller (who later served as FBI Director and is currently the Special Counsel investigating Russian interference in U.S. elections ) to serve as a supervisor in the San Francisco U.S. Attorney’s Office. Melinda stepped down as the Chief of the White Collar Section in 2003, joining Orrick, Herrington & Sutcliffe as a litigation partner in San Francisco.

After being nominated by President Barack Obama and unanimously confirmed by the United States Senate, Melinda served as U.S. Attorney for the Northern District of California from August 2010 through September 2015, overseeing the U.S. Department of Justice’s work in a district that is an epicenter for complex, cutting-edge investigations and prosecutions. She led a team of more than 130 criminal and civil Assistant U.S. Attorneys in handling a high volume of matters that involved export enforcement, computer intrusions and intellectual property theft, international corruption, digital currency issues, securities fraud, and economic crimes, health care fraud, national security, public integrity and civil rights violations, and organized crime, among other things. Melinda served as Co-Chair of the White Collar Crime Subcommittee of the Attorney General’s Advisory Committee, and was a member of the Cybersecurity and Health Care Fraud Subcommittees, where she collaborated with U.S. Attorneys nationwide on the development and implementation of national policies and practices regarding the government’s approach to economic crimes and cybersecurity.

Melinda is called upon regularly to speak at conferences and law schools, as a keynote speaker, panelist, or moderator, on a wide range of legal and career-related subjects.  She is also often asked by media outlets to provide information and commentary regarding issues ranging from the work of the Special Counsel to criminal justice reform. 



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

Tal Hacohen Partner M&A and Private Equity, Technology Companies Group

New York

Tal Hacohen is a partner in the Corporate Group of Orrick’s New York office and is a member of the Global Mergers & Acquisitions and Private Equity Group.

Tal represents U.S. and multinational public and private company clients in a variety of transactions and across industries, including domestic and cross-border mergers, acquisitions, dispositions, private placements and restructurings.  Tal also represents founders, companies and investors in venture capital financings, and advises boards of directors and shareholders in all aspects of New York and Delaware corporate, partnership and limited liability company law, including corporate governance and fiduciary duty matters.

Tal was recently recognized as a "40 under 40 Emerging Leader" by The M&A Advisor, an "Acritas Star" by Acritas and a “Rising Star” by IFLR for his work in the area of Mergers & Acquisitions.



  • Banking & Finance
  • Structured Finance
  • Financial & Structured Products
  • M&A and Private Equity
  • Corporate
  • Asset Backed Securities
  • Restructuring
  • France
  • Africa
  • Maritime Finance
  • Fintech
  • Corporate Lending

William S. Haft Partner Banking & Finance, Structured Finance

New York

Bill Haft is a corporate finance lawyer and serves as head of Orrick’s global Banking & Finance group. He has a broad practice counseling international financial institutions and corporations in credit and capital markets transactions; bank, structured and asset finance; project finance; securities regulation and commercial law; mergers and acquisitions; joint ventures and restructurings. 

Bill regularly counsels clients in connection with cross-border matters, including maritime, energy and infrastructure transactions.

Reflecting feedback from his clients, Bill was recently named to BTI’s “Client Service All-Stars,” an exclusive recognition for lawyers who demonstrate superior client service. Described by an IFLR1000 client commentator as “extremely responsive” with a “deep spectrum of knowledge,” in Banking and Finance, Bill is also consistently recognized as a leading international lawyer by Chambers Global for his “experience working with French and other European clients on capital markets transactions.”

Bill has particular experience in the maritime sector having advised on numerous complex international shipping and offshore corporate and capital markets transactions and restructurings on behalf of a cross section of banks, arrangers, investors, owners and operators.

Before joining Orrick, Bill practiced with two other international law firms in New York and Paris.



  • White Collar, Investigations, Securities Litigation & Compliance
  • White Collar
  • Trials

Eric Hairston Partner White Collar, Investigations, Securities Litigation & Compliance, White Collar

San Francisco

Eric Hairston, a partner in the San Francisco Office, is a member of the Litigation Group. Eric's diverse practice encompasses complex civil litigation, government and internal investigations, and representing business clients in federal criminal proceedings.

He also represents clients in regulatory and administrative proceedings before the California Public Utilities Commission.

From 2007-2008, Mr. Hairston worked as an Assistant Federal Public Defender, where he represented indigent defendants accused of federal crimes such as mail and wire fraud, bank fraud, money laundering, and offenses involving narcotics, firearms and immigration. Prior to that, Mr. Hairston was an associate at Orrick from 2003-2007.



  • Public Finance

Kevin Hale Of Counsel Public Finance

Los Angeles

Kevin Hale is resident in the Los Angeles office and a member of the firm’s Public Finance Department. Kevin has more than 12 years of experience working as bond counsel and disclosure counsel on tax-exempt bond financings including certificates of participation and lease revenue financings, tax increment redevelopment financings, Mello-Roos district financings, assessment district financings, single- and multi-family housing financings, transportation and capital improvement revenue financings, both pooled and stand-alone Marks-Roos financings and general obligation bonds.

Kevin has also served as bond counsel in conduit financings by the California Educational Facilities Authority (CEFA), the California Infrastructure and Economic Development Bank (I-Bank), the California Statewide Communities Development Authority (CSCDA) and several local agency issuers for the benefit of educational and cultural facilities throughout California.

Kevin also has extensive experience working as counsel to underwriters and placement agents and is routinely engaged and consulted on disclosure and structuring issues by national and regional investment banks working with public sector clients.

Prior to joining the firm, he was an associate with Wehner & Perlman where he had significant responsibility in the litigation of actions for fraud and securities fraud under California and federal securities laws, both civil and criminal.



  • Project Finance
  • Energy
  • Infrastructure
  • Renewable Energy
  • Real Estate
  • Oil & Gas
  • Corporate

Tyler J. Hall E & I Career Associate Project Finance, Energy

Wheeling, W.V. (GOC)

Tyler J. Hall is a member of Orrick’s Energy and Infrastructure Group in the firm’s Global Operations Center in Wheeling, West Virginia.

Within his practice group, Mr. Hall’s work focuses primarily on energy and infrastructure-related projects, including project financings, project development, mergers and acquisitions, and other miscellaneous investor arrangements in all phases of the development, financing, construction, and operation of energy and infrastructure projects.

Mr. Hall was a summer associate with Orrick in 2015, and he is a 2016 graduate of The Ohio State University Michael E. Moritz College of Law, where he was Executive Articles Editor of the Ohio State Law Journal, and a finalist in both the Lawrence Negotiation Competition and the Representation in Mediation Competition.  He received his undergraduate degree from the University of Pennsylvania, magna cum laude, in Political Science and German.



  • M&A and Private Equity
  • China

David Halperin Partner M&A and Private Equity, China

Hong Kong

David Halperin, a partner in Orrick's Hong Kong office, is a member of the Corporate Group. His practice focuses on corporate and commercial matters, banking and finance projects for investment funds and their managers, and entertainment and media clients.

David has advised a number of venture capital and direct investment clients with respect to their Asian investments.

Before joining Orrick, David served as an officer in the U.S. Navy from 1966-1970, rising to the rank of Lieutenant Commander (U.S.N.R.) and serving from 1969-1970 as a special assistant to Admiral E.R. Zumwalt, Commander of Naval Forces, Vietnam and later Chief of Naval Operations. From 1970-71, he served as personal assistant to Dr. Henry Kissinger, assistant to the president for national security affairs. David worked for Davis Polk & Wardwell in New York from 1974-1976 before joining the Hong Kong office of Coudert Brothers in 1976. He became a partner of Coudert in 1983 and has practiced in Hong Kong for 40 years.

Siobhan Handley Chief Talent Officer

New York

Siobhan Handley is Orrick’s Chief Talent Officer. She is responsible for developing and executing talent and human resource strategies to advance the firm’s strategy and serve its clients.

In collaboration with the firm’s leadership team, she focuses on designing and implementing programs to recruit, inspire and advance the best legal and staff talent.

Siobhan previously served as Orrick’s Managing Director for Resources. In that role, she spearheaded the development of the firm’s innovative talent model—the first of its kind in a major law firm—which replaces the traditional associate lockstep advancement system with merit-based advancement. As chair of the firm’s Talent Committee, she oversees Orrick’s lawyer training and performance feedback program – which is one of the most rigorous in the market. She also has led the creation of a range of new lawyer and professional staff roles.

Siobhan brings to this role extensive experience on the front line of client service, having been a partner in the firm’s product liability litigation and mass tort defense group. For more than a decade, she was a member of the Orrick team that acted as National Counsel to Union Carbide Corporation in connection with asbestos-related personal injury lawsuits and served as lead trial counsel in cases across the country. Siobhan was one of the key trial counsel in the highly-publicized landmark trial in Texas State Court, Brazoria County, where Kelly-Moore Paint Company sued Union Carbide for $1.4 billion in compensatory damages and $4.2 billion in punitive damages that resulted in a complete defense verdict. In addition, she served as trial counsel for significant product liability cases for other clients including Wyeth and Flexible Products.



  • White Collar, Investigations, Securities Litigation & Compliance

Christine Hanley Managing Associate White Collar, Investigations, Securities Litigation & Compliance


Christine Hanley, a litigation associate in the Seattle office, is a member of the White Collar, Investigations, Securities Litigation and Compliance Group.  Her practice in complex litigation matters focuses on defending companies, officers and directors in shareholder class actions, derivative suits, and regulatory proceedings and investigations in state and federal district and appellate courts throughout the country.

Ms. Hanley is a regular contributor to several of Orrick's securities blogs and newsletters. She also maintains a pro bono practice centering on matters concerning immigration and prisoners' rights.

Prior to joining Orrick, Ms. Hanley was an associate at Simpson Thacher & Bartlett, LLP. In law school, she was a Legal Research and Writing Fellow in addition to working as a summer law clerk at Freedom Now and Simpson Thacher & Bartlett, LLP.