Carl A. Valenstein

Partner

Carl Valenstein focuses his practice on domestic and international corporate and securities matters, mergers and acquisitions, project development, and transactional finance. He works extensively in a variety of industries, including the life sciences, telecom/electronics, renewable energy, and maritime industries, and has worked broadly in Latin America, the Caribbean, Europe, Africa, Asia, and the Middle East.

Carl co-chairs the firm’s Cuba initiative. He is the former leader of the Boston office corporate and business transactions practice, former co-chair of the firm's ESG and sustainability advisory practice, and previously served as co-chair of the International Section of the Boston Bar Association.

Carl was named to Foreign Investment Watch’s Top Advisors list for 2025, which recognizes leading legal, financial, compliance, and communications professionals who provide advice concerning national security review of foreign investments in the United States and overseas.

In addition to his transactional practice, Carl advises clients on international risk management, including compliance with the foreign investment review process, export control and sanctions, and anti-money laundering, antiboycott, and anticorruption laws and regulations. He also advises on, and has participated in, internal investigations, enforcement cases, and dispute resolution proceedings relating to his transactional and regulatory practice. Carl is a member of the Morgan Lewis Committee on Foreign Investment in the United States (CFIUS) working group. He is a frequent speaker at conferences on a variety of international compliance and transactional topics. Carl is fluent in Spanish and Portuguese, and also conversant in French and Italian.

For more than 20 years, Carl has provided legal assistance to microfinance institutions and assisted public charities, foundations, social enterprises and entrepreneurs, impact investment venture capital funds, and other impact investors. He is a founding member of the Impact Investment Lawyers Legal Working Group, which holds annual conferences. Carl is an adjunct professor at the University of Michigan Law School and New York Law School International Transactions Clinics (ITCs) focusing on impact investment. He also teaches transnational finance at Boston University Law School. He serves on the advisory boards of the Michigan Social Venture Fund, which is the oldest student-led social venture fund, and the NU Impact Fund.

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