Choharis    | Global |   Solutions

Washington, D.C.

   International law  |   Government Relations  |   Strategic Consulting

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Choharis | Global | Solutions offers the expertise of the following affiliated professionals: 

Peter Charles Choharis has more than twenty years of experience as a U.S. litigator and international dispute specialist. Peter has appeared in trial and appellate courts at the federal and state level throughout the United States. His U.S. litigation experience includes a wide range of commercial disputes; administrative law involving transportation, environment, telecommunications, trade, and food; product liability; class actions, including multidistrict litigation; financial products; investment disputes; and the Foreign Sovereign Immunities Act.

Peter's international dispute resolution experience includes acting as lead counsel in disputes in Asia, Africa, Europe, and Central America. He has represented U.S. entities in a host of international commercial disputes, regulatory investigations, and criminal matters. He has also represented foreign governments in Europe and Africa on commercial and public international law matters, including before U.S. courts and international arbitral tribunals.

Peter also counsels U.S. companies and private equity funds on a range of foreign investment issues, including FCPA, anti-money laundering, and whistleblower compliance as well as corporate social responsibility. In addition, he has counseled Central and Southeast Asian governments on foreign investment, energy development, and legal reforms.

He also assists foreign companies to obtain financing for overseas investments, and counsels small and medium-sized enterprises (SMEs) on a variety of international and domestic issues. Peter also serves on the Advisory Board of a social and political networking site.

Peter is a recognized expert on international law and foreign affairs. He has addressed the ABA International Section Meeting, the MIGA-Georgetown Symposium, the World Bank, the Overseas Private Investment Corporation, the American Society of International Law, the International Law Institute, and several law schools. He has also appeared on CNN-Headline News, BBC, CNBC, Bloomberg TV, CNN-International, MSNBC, REUTERS-TV, National Public Radio, and other television and radio networks to discuss law and foreign policy.

Peter is also an Adjunct Fellow at the American Security Project, and prior to that was a Visiting Fellow at the Center for Strategic and International Studies. More than two dozen of his articles on foreign affairs and international law have appeared in The New York Times (Global), International Herald Tribune, Forbes, The Atlantic, The Washington Post, The Wall Street Journal, The Los Angeles Times, The Boston Globe, and many other publications.

As a Visiting Scholar at the G.W. University School of Law, he has authored a series of articles on expropriation and other international law topics for scholarly journals. He has also been an adjunct professor at the Washington College of Law, American University, and taught international law as a Visiting Lecturer at Yale College.

Peter graduated from Yale Law School and Harvard College, where he was awarded the Sheldon Traveling Fellowship and numerous other prizes. He is a member of the New York, District of Columbia, and Massachusetts bars; the U.S. District Court for the District of Columbia; several U.S. courts of appeal; and the U.S. Supreme Court.

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Marcia L. Nordgren specializes in international and cross-border finance transactions in emerging markets. Marcia has represented lenders, private equity funds, sponsors and borrowers in complex projects in Africa, the Middle East, Latin America, Eastern Europe, Central Asia, and Russia. Her experience includes direct and guaranteed loans to entities in the financial services, housing and hotel, energy, construction and manufacturing, small and medium enterprises (SMEs), and microfinance industries.

Prior to starting her own firm 2010, Marcia served as legal counsel to FINCA International, the microfinance bank, and to Small Enterprise Assistance Funds, a global investment firm focused on SME investments in emerging markets. She was also the first General Counsel of CHF International, the international development organization.

From 1999 until 2007, Marcia was Assistant General Counsel at the Overseas Private Investment Corporation, where she structured, negotiated and closed dozens of complex structured and project finance, corporate finance, SME, microfinance, and loan guaranty transactions in emerging markets. Previously, she served as Associate General Counsel of Rolls-Royce North America and worked at two national U.S. law firms.

Marcia also served as a United Nations International Elections Observer for Mozambique's first democratic elections in 1994.

She is a graduate of Rutgers University School of Law, where she was Managing Editor of the Rutgers Computer and Technology Law Journal, and a cum laude graduate of Middlebury College. Marcia also studied at Dartmouth College and l'Institute d'Etudes Politiques de Paris.

Marcia is a member of the New York and New Jersey bars.

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Arnon D. Siegel served as a law clerk to Justice Clarence Thomas at the Supreme Court of the United States, and has since amassed twenty years of experience as a litigator. His practice extends to federal and state trial and appellate courts and administrative agencies on a wide range of matters, and his experience encompasses briefing or arguing before nearly every federal court of appeals.

He has litigated cases concerning international sovereign debt claims against the Republic of Congo and an international trade dispute against an Italian defendant. He has also advised and litigated on behalf of leading investment houses, banks, and funds on the Securities Acts of 1933 and 1934, the Investment Company Act of 1940, and other securities and commercial matters in courts all over the country and before the U.S. Securities and Exchange Commission. In addition, he has litigated complex class actions and bankruptcy cases, at both the trial and appellate levels.

Mr. Siegel has experience litigating a wide range of cross-border disputes. In addition to litigating international commercial cases, Mr. Siegel represented the winning party in the seminal case involving international “libel tourism,” Matusevitch v. Telnikoff, where Mr. Siegel successfully had a U.K. libel judgment struck down on U.S. constitutional grounds, briefing
and arguing the case in front of the federal trial and appellate courts in Washington and the highest court in Maryland. In addition to numerous Fortune 500 companies, Mr. Siegel’s clients have included a U.S. federal judge, whom Mr. Siegel defended in proceedings involving novel constitutional issues, including freedom of speech.

Mr. Siegel also served for fourteen years as an officer in the Judge Advocate General’s Corps of the United States Army (Reserves). He was on active duty in Operation Joint Guard in the Balkans, where he served as a trial lawyer prosecuting criminal and administrative cases and as a member of the NATO Claims Tribunal for the former Yugoslavia. Mr. Siegel continues to be active in military affairs and serves on the Board of Advisors of the National Institute of Military Justice. In December 2008, Mr. Siegel represented the NIMJ as an official non-governmental observer at the military commissions in Guantanamo Bay

Mr. Siegel is a graduate of Brown University and the Yale Law School. Upon graduating, he served as a law clerk at all three levels of the federal court system: to Justice Clarence Thomas at the U.S. Supreme Court and the United States Court of Appeals for the District of Columbia Circuit and to Judge Robert P. Patterson, Jr. of the United States District Court for the Southern District of New York.

Mr. Siegel speaks French, German, and Hebrew.

He is a member of the New York and the District of Columbia bars; several U.S. district courts and courts of appeals; and the U.S. Supreme Court.

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John R. Magnus has been an active trade practitioner for 17 years. He has served as external counsel to domestic and foreign firms and industry coalitions in a variety of sectors, including steel, forest products, chemicals, microelectronics, aerospace, textiles/apparel, photographic materials, insurance, beverage alcohol, machine tools, telecommunications, motion pictures and cable television. Mr. Magnus advises and represents clients on multilateral negotiations and WTO disputes; regional and bilateral trade initiatives; U.S. trade legislation and Congressional oversight activities; high-profile market access cases involving goods and services; foreign governments' trade regimes and industrial policy measures; and customs and compliance issues. He also advises foreign governments on their trade regimes and implementation of WTO rules. Mr. Magnus has also developed an antitrust practice, advising clients on domestic and (especially) international antitrust policy and enforcement issues.

Mr. Magnus has litigated numerous antidumping, countervailing duty, and other import-related cases before the U.S. Department of Commerce and U.S. International Trade Commission, as well as their reviewing courts and bi-national panels. He has also litigated Section 301 market access cases before the Office of U.S. Trade Representative, and helped to defend U.S. measures, and prosecute U.S. complaints, in numerous GATT/WTO dispute settlement proceedings.

He is on the "roster" of trade remedy experts established under Chapter 19 of the North American Free Trade Agreement to review antidumping and countervailing duty determinations by Canada, Mexico and the United States.

Mr. Magnus is an Adjunct Professor of Law at the Washington College of Law, American University, and teaches “Understanding the American Trade Regime.” A frequent speaker and writer on international trade, his publications include International Law News, a book chapter in “Key Issues in WTO Dispute Settlement: The First Ten Years” (Cambridge University Press 2005), Journal of World Trade, and Harvard International Review.

He also serves as the ABA Section of International Law Policy/Government Affairs Officer and is a past Chair of the International Trade Law Committee. He is also a Board Member of the Customs & International Trade Bar Association, and a member of the American Society of International Law; the Bretton Woods Committee; the International Chamber of Commerce; and the Washington International Trade Association.

Mr. Magnus graduated from the University of Chicago Law School and Stanford University.

He is a member of the District of Columbia and California bars; the U.S. Court of International Trade; a number of U.S. courts of appeal; and the U.S. Supreme Court.

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Dr. William T. (Bill) Onorato consults for companies, governments, and multilateral development agencies on international oil and gas contracts, regulatory frameworks, joint development zones, and petroleum-related legal regimes as well as international dispute resolution.

As the former Legal Adviser, Energy & Mining, The World Bank, Washington, D.C., Bill served for more than 16 years as the principal legal adviser to the Bank’s worldwide mining sector, petroleum, energy, and electric power lending programs, which averaged $1.5 billion annually during his tenure.

He provided expert legal and policy advice to member governments at the ministerial and State enterprise levels on exploration promotion projects, electric power and mining legislation, regulations, offering terms, model contracts, and exploration and development policies and legal frameworks. Bill also coordinated technical assistance to these governments on diverse matters, including contractual regimes, project implementation, re-structuring, regulation, procurement, and facilitation-intermediation with private sector investors.

Bill regularly undertook operational missions in Asia, Africa, Latin America, Europe, the Republics of the Former Soviet Union including Central Asia, and the Middle East. He participated in full project cycles, including the identification, preparation, structuring, negotiation, documentation, implementation and supervision of Bank energy and mining projects. He also had extensive interaction with international oil, mining and power companies to promote cooperative exploration and development programs and projects on behalf of Bank member States.

Prior to joining the World Bank, Bill amassed more than 15 years of international law and business experience, while serving in senior positions at Chevron Corporation, Getty Oil Company, and Chrysler International S.A. .

He has served as a party-designated Arbitrator in a petroleum-related ICC arbitration and is a designated Arbitrator and Expert to the Cairo Regional Centre for International Commercial Arbitration, Zamalek, Cairo, Egypt.

Bill has also authored numerous law review articles and World Bank monographs on mining law and development, petroleum law, joint development of offshore oil reserves, and treaty law.

He has been an Adjunct Professor in international business law, including natural resources law, at St. John's College, Cambridge; The University of Notre Dame Law School, London Program; The University of California at Berkeley; and Georgetown University Law Center in Washington.

He has a BA from Cornell University; a JD cum laude from the University of Pennsylvania Law School; and a Ph.D. in International Law from the University of Cambridge, England.

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