Roger Klein has over forty years of experience providing legal services to multinational corporate and commercial real estate clients.  With respect to corporate matters, Mr. Klein has served as counsel in acquisitions totaling billions of dollars, including several large defense contractors, a large luxury hotel, major sports facilities, luxury cruise ships, and numerous publications.  He has provided FCPA and ethics counseling to both US and foreign clients and represents several US and European corporations with respect to a variety of domestic and foreign commercial matters including debt and equity financing, teaming arrangements, employment contracts, and distribution agreements. Mr. Klein has represented professional corporations and professional limited liability partnerships in the legal, medical, architectural and engineering professions. He served for over ten years as general counsel to a major U.S.-based, multinational law firm and, in that capacity, was directly involved with the organization of offices in Europe and Asia.

As a real estate lawyer, Mr. Klein has represented both landlords and tenants in lease negotiations involving over a million square feet of office space, and counseled owners in the acquisition and mixed use development of substantial commercial properties.  He has also acted as counsel to several commercial building owners with respect to the sale and purchase of commercial real estate; negotiating financing documents; negotiating building management, building services, construction and brokerage agreements; addressing environmental, ADA, zoning and real estate tax issues.

Mr. Klein’s international business practice has involved representing both U.S. businesses seeking to expand foreign operations and foreign businesses investing in the United States.  Examples of foreign based transactions include representation of a European cruise line in the negotiation of UK bank financing for the construction of two cruise ships, representation of a Japanese manufacturer in the acquisition of a U.S. distribution company, and representation of a Korean electronics company in the acquisition of a U.S. based manufacturing facility.  Examples of U.S. based transactions involving foreign ventures include sales of commercial real estate to both Israeli investor and Italian investor groups, representation of a Japanese company in the sale of its interest in a U.S. manufacturing company to a German corporation, and representation of a U.S. based security services corporation in the expansion of operations throughout the Middle East.

Mr. Klein has served as Vice Chair of The Board on Professional Responsibility, District of Columbia Court of Appeals and as Vice Chair of the Subcommittee on Trade and Professional Organizations of the American Bar Association. He is the author of “Political Expenditures,” 231-2nd Tax Management Portfolio, has served on the adjunct faculty of the Columbus School of Law, Catholic University and lectured on the topic of “Commercial Lease Negotiation,” in conjunction with the D.C. Bar Continuing Education Program.  Mr. Klein’s pro bono activity includes acting as special counsel to the Special Operations Warrior Foundation.


Martindale AV Award 2024


  • Counseled China-based company with respect to Foreign Corrupt Practices Act and Anti-Money Laundering issues related to establishing a casino in a U.S. Territory.
  • Represented a multinational corporation headquartered in the U.S. with respect to the acquisition of several companies doing business in the Middle East and related restructuring of the client’s primary bank financing documents.
  • Represented shareholders of two affiliated specialty medical diagnostic companies in the sale of their equity interests to a strategic investor and negotiated related executive employment agreements.
  • Drafted and negotiated general contractor, subcontractor and architectural services contracts for a regional general contractor of multifamily residential developments.
  • Negotiated trade show facility leases/licenses for a multinational construction industry related trade show joint venture.


  • Martindale-Hubbell AV Preeminent Rating