Washington, D.C. Partners and Counsel

David W. Blass - Partner - Headshot
David W. Blass - Partner

Based in our Washington, D.C. office, David Blass is a Partner in the Firm’s Investment Funds Practice. David is a leading regulatory lawyer in the funds industry and has advised on matters involving innovative registered funds products, Investment Advisers Act compliance, SEC examination and enforcement matters, and broker-dealer regulatory compliance.  He is uniquely qualified to provide strategic and regulatory advice on matters involving asset management  firms and broker-dealers. 

David has extensive knowledge of the regulatory requirements of the asset management industry having  served as General Counsel of the Investment Company Institute, the trade association for registered investment funds.  He also held senior roles for over a decade at the U.S. Securities and Exchange Commission, most recently as Chief Counsel and Associate Director in the Division of Trading and Markets, where he oversaw broker-dealer regulation and large aspects of FINRA’s regulatory program.  David was the Associate General Counsel for the SEC where he was responsible for Dodd-Frank Act implementation, among many other programmatic areas.  He also held a senior role in the SEC’s Division of Investment Management, leading the office regulating registered investment advisers, including advisers to private funds.

Joshua Ford Bonnie - Partner - Headshot
Joshua Ford Bonnie - Partner Josh Bonnie is one of the preeminent IPO lawyers in the nation and regularly counsels public companies on spin-offs and other significant strategic transactions, capital markets offerings and general corporate and securities law matters. Josh has been featured in The American Lawyer’s “Dealmakers of the Year,” is recognized in Chambers Global: The World’s Leading Lawyers for BusinessChambers USA: America’s Leading Lawyers for Business and The Legal 500 United States as one of the leading capital markets practitioners in the United States, and is endorsed by PLC Which Lawyer?
Christopher Brown - Partner - Headshot
Christopher Brown - Partner Based in our Washington, D.C. office, Chris Brown concentrates his practice on banking and finance. He has represented private equity sponsors and their portfolio companies, as well as public and private companies, in a wide variety of secured lending and other financing transactions. In addition, he has worked for many clients on matters involving general secured finance issues, debt restructurings and related corporate issues. Recently, Chris’s clients have included AEA Investors, Allegion, Best Buy, Blackstone, Carlyle, Charterhouse Capital Partners, EQT Partners Inc., Fieldwood Energy, Francisco Partners, Global Payments, Hershey, Ingersoll Rand, J.G. Wentworth, JLL Partners, KSL Capital Partners, MDC Partners, Microsoft, Patheon, Peabody Energy, Primavera Capital Partners, Riverstone, Town Sports International, Vestar Capital Partners and Vista Equity Partners.
Rajib Chanda - Partner - Headshot
Rajib Chanda - Partner Heading the Firm’s Registered Funds Practice, Rajib Chanda focuses on registered fund product development, design and structure, with particular experience in alternative strategies. Based in our Washington, D.C. and New York offices, Rajib has regularly represented Blackstone (including GSO), KKR, Oaktree and Ares, among others, on registered funds, transactional and regulatory matters. 

Labeled “smart, creative and responsive” by Legal 500, Rajib has worked with alternative asset managers seeking to access retail investor channels through mutual funds, business development companies, closed-end funds, exchange-traded funds and permanent capital vehicles. He also regularly represents companies engaged in asset management M&A, including acquisitions, stakes deals and joint ventures. In addition, Rajib provides counsel to boards of registered funds, and has substantial experience advising companies on issues relating to social media and cybersecurity. 

Rajib is a member of the Firm’s Diversity, Investment and Business Development Committees, and is one of the Firm’s Hiring Partners.
Abram J. Ellis - Partner - Headshot
Abram J. Ellis - Partner

Recognized as a “Rising Star” in antitrust litigation, Abram Ellis is a Partner in the Firm’s Washington, D.C. office. His practice comprises all aspects of competition law, from defending clients against complex class action antitrust litigation to helping clients obtain regulatory clearance from domestic and international competition authorities for significant transactions. An integral member of the “Antitrust Team of the Year” (Chambers USA 2016),  Abram is particularly experienced in antitrust litigation involving complex financial instruments. He has also represented numerous healthcare clients in antitrust class actions and related government investigations.

In addition to his robust litigation practice, Abram advises leading private equity funds, financial institutions and major corporations on the regulatory matters relating to cross-border activities, including on OFAC and FCPA matters.

William R. Golden - Partner - Headshot
William R. Golden - Partner

Based in Washington, D.C., Will Golden is a Partner in the Firm’s Capital Markets Practice. Will represents issuers, private equity sponsors and underwriters in a wide range of securities offerings, including initial public offerings, follow-on and secondary equity offerings, spin-offs, high yield and investment grade debt offerings and acquisition financing transactions, as well as exchange offers and other liability management transactions. Will also advises clients on ongoing public reporting, compliance and corporate governance matters.

David J. Greene - Partner - Headshot
David J. Greene - Partner Based in our Washington, D.C. office, David J. Greene is a Partner in the Firm’s Investment Funds Practice. David’s practice focuses on private fund formation and operation, as well as related alternative assets. He has represented sponsors in their global fundraising activities including energy and infrastructure funds, natural resource funds and other private investment vehicles. David regularly publishes articles on topics relating to the private funds industry and has been recommended by The Legal 500 United States
Jeffrey H. Knox - Partner - Headshot
Jeffrey H. Knox - Partner Jeff Knox represents multinational corporations and their boards and executives in high-stakes investigations by the U.S. DOJ, SEC, and other federal and state agencies.  An experienced trial and appellate lawyer, Jeff is the former Chief of the DOJ’s Fraud Section in Washington, D.C., which has exclusive criminal enforcement jurisdiction over the FCPA and handles many of the nation's most significant securities fraud, False Claims Act, and international money laundering cases.  Jeff also previously served as a federal prosecutor in the Eastern District of New York, where he was Chief of the Violent Crimes & Terrorism Section and widely recognized as one of the nation’s leading national security prosecutors.  Jeff is a respected voice on corporate compliance and enforcement policy, and serves on advisory boards dedicated to these issues at NYU School of Law and the American Law Institute. 
Andrew M. Lacy - Partner - Headshot
Andrew M. Lacy - Partner Andrew Lacy is a Partner in the Washington, D.C. office whose practice focuses on antitrust-related litigation, transactional and counseling issues. Andrew represents clients in Department of Justice and Federal Trade Commission merger investigations and in criminal and civil government antitrust investigations. He has litigated numerous antitrust matters involving monopolization, price fixing and other restraint of trade allegations and has appeared in trials and hearings before federal and state courts and international arbitration tribunals. Andrew is recognized by The Legal 500 U.S. and Euromoney’s Benchmark Litigation.
Keith A. Noreika - Partner - Headshot
Keith A. Noreika - Partner

Leading bank regulatory attorney and former Acting Comptroller of the Currency, Keith Noreika advises domestic and international financial institutions on regulatory issues relating to mergers and acquisitions, minority investments, capital issuances, structuring and compliance activities, and litigation matters, particularly in the area of federal preemption. Keith has consistently been recognized as a leader in his field by Chambers USA in Financial Services Regulation: Banking (Compliance) since 2014, and was named a Financial Services Litigation All-Star by BTI Client Service in 2015. 

Michael J.  Osnato, Jr. - Partner - Headshot
Michael J. Osnato, Jr. - Partner

A former senior official in the SEC’s Enforcement Division, Mike Osnato represents financial institutions, public companies, investment managers and individuals in high-stakes regulatory and government investigations. Drawing on his deep breadth of experience at the SEC, Mike also specializes in practical and insightful SEC examination, compliance and governance counseling.

Mike served for nearly a decade at the SEC, where he most recently led the national unit charged with executing the agency’s post-Financial Crisis enforcement agenda in the markets for complex financial products. Based on a wealth of experience supervising and defending highly complex investigations, Mike has earned a reputation for delivering clear, results-oriented advice, which remains the hallmark of his practice at Simpson Thacher.
Sara Y. Razi - Partner - Headshot
Sara Y. Razi - Partner

Sara Razi is a leading antitrust attorney, focusing on merger reviews, government antitrust investigations, antitrust litigation, and counseling on a variety of competition issues. Sara joined Simpson Thacher in 2013 after serving as a senior official at the Federal Trade Commission for nearly a decade. 

Sara regularly represents clients in antitrust investigations by the DOJ, FTC, and States and has secured successful outcomes in several complex and closely-watched mergers and high-profile antitrust litigations. Her extensive private-sector and government antitrust experience spans a multitude of industries including media, telecommunications, technology, supermarkets and other retail, oil and gas, consumer products, healthcare providers, pharmaceuticals, and financial services.

Described by Global Competition Review as one of the “best FTC merger advisers in the business,” Sara is recognized by The Legal 500 and by Euromoney’s Benchmark Litigation, and is a cornerstone of the team awarded “Antitrust Department of the Year” by Chambers USA in 2016, which highlighted the group’s “outstanding expertise and experience in antitrust matters.” Sara is an authority on antitrust issues and speaks frequently at conferences sponsored by the ABA, law schools, and private organizations.

Cheryl J. Scarboro - Partner - Headshot
Cheryl J. Scarboro - Partner Cheryl Scarboro, formerly the first Chief of the SEC’s FCPA Unit, represents corporations, financial institutions and individuals in SEC and other regulatory enforcement proceedings. Cheryl conducts internal investigations and counsels clients on FCPA compliance programs, SEC reporting, disclosure and corporate governance requirements. She was recognized as one the “25 Most Influential Women in Securities Law” by Law360,  is consistently listed in the “Top 250 Women in Litigation” by Benchmark Litigation, and was named to the “Enforcement 40” by the Securities Enforcement Forum. Cheryl is consistently recommended by The Legal 500 in white collar and was named a National “Litigation Star” by Benchmark Litigation. In addition, she is a member of the Board of Visitors of Duke University School of Law.
John Terzaken - Partner - Headshot
John Terzaken - Partner A leading antitrust litigator and former federal prosecutor, John Terzaken is a Partner in the Firm’s Washington, D.C. office. John represents corporate and individual clients involved in government enforcement of antitrust, fraud and other white collar violations, as well as related follow-on civil litigation. His experience spans market sector investigations and litigation in all major industries, including financial services, pharmaceutical, professional services, manufacturing, energy, shipping, food and beverage, and many others. John previously served as the Director of Criminal Enforcement of the Department of Justice, Antitrust Division, where he oversaw the Division’s criminal enforcement and litigation nationwide. He has earned awards of distinction from the Attorney General of the United States and the Assistant Attorney General for the Antitrust Division. He has also been ranked as a leading lawyer by Chambers Global, Chambers USA, The Legal 500 United States and Super Lawyers.
Peter Thomas - Partner - Headshot
Peter Thomas - Partner Peter Thomas, Managing Partner of the Firm’s Washington, D.C. office, has extensive experience in antitrust litigation, merger enforcement, international arbitrations, and national security reviews before the Committee on Foreign Investment in the United States (CFIUS). He was named in 2017 as a “Dealmaker of the Year” by The American Lawyer,  is consistently recognized as a “Litigation Star” both nationally and in D.C. by Euromoney’s Benchmark Litigation, and is recognized by The Legal 500 in both international arbitration and antitrust. He serves on the Board of the Legal Aid Society of the District of Columbia. 
Adeeb R. Fadil - Senior Counsel - Headshot
Adeeb R. Fadil - Senior Counsel Adeeb Fadil is Senior Counsel in the Firm's Corporate Department and Environmental Practice. He focuses on environmental aspects of transactions including acquisitions, divestitures, loans, securities offerings, and bankruptcies and restructurings, for a wide range of the Firm’s clients, as well as on environmental liability management, compliance counseling and dispute resolution.
Peter C. Herrick - Counsel - Headshot
Peter C. Herrick - Counsel Peter C. Herrick, formerly Senior Trial Counsel at the Federal Trade Commission (FTC), is Counsel in Simpson Thacher’s Litigation Department.  His practice focuses on antitrust and competition, including antitrust litigation, government investigations, and counseling on competition issues. During his time at the FTC, Peter oversaw high-stakes investigations and litigations of proposed mergers in a wide range of industries.