Guillermo S. Christensen

Guillermo Christensen is a partner in the firm’s Washington, D.C. office. He is a member of the Antitrust, Competition, and Trade Regulation practice group. Guillermo combines his experience as a former CIA intelligence officer, a diplomat with the U.S. Department of State, and an attorney to shape and inform the advice he provides to clients on enterprise risks involving cybersecurity, national security, and complex international business matters. Drawing on his national security background, Guillermo counsels clients in dealing with economic sanctions and embargoes administered by the Office of Foreign Assets Control (OFAC), including complex technology matters involving China, or fast moving compliance questions around ransomware payments. His work in national security-related mergers, acquisitions, and investments includes those requiring review by the Committee on Foreign Investment in the United States (CFIUS) or those involving export controls or the National Industrial Security Program (NISPOM). In the CFIUS context, Guillermo has worked in particular on high-technology, defense sector and critical infrastructure deals involving China, Russia, the Middle East, and Europe. Guillermo represents clients in complying with anti-corruption laws such as the Foreign Corrupt Practices Act (FCPA) and OFAC investigations and voluntary disclosures. His work includes handling cross-border investigations, compliance reviews, and pre-acquisition diligence, and post-acquisition integration. He has investigated matters in South America, Africa, Asia, and the Middle East involving companies operating in the energy, high-technology, defense, and transportation sectors. He also advises companies on the adequacy of internal controls and compliance policies, and has set up compliance programs from the ground up for companies expanding into international markets, including training programs and board-level market entry advice. Some states have laws and ethical rules regarding solicitation and advertisement practices by attorneys and/or other professionals. The National Law Review is not a law firm nor is www.NatLawReview.com  intended to be a referral service for attorneys and/or other professionals. The NLR does not wish, nor does it intend, to solicit the business of anyone or to refer anyone to an attorney or other professional.  NLR does not answer legal questions nor will we refer you to an attorney or other professional if you request such information from us. Under certain state laws, the following statements may be required on this website and we have included them in order to be in full compliance with these rules. The choice of a lawyer or other professional is an important decision and should not be based solely upon advertisements. Attorney Advertising Notice: Prior results do not guarantee a similar outcome. Statement in compliance with Texas Rules of Professional Conduct. Unless otherwise noted, attorneys are not certified by the Texas Board of Legal Specialization, nor can NLR attest to the accuracy of any notation of Legal Specialization or other Professional Credentials.