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Miller & Chevalier Elects Gregory W. Bates and Lisandra Ortiz as Members

Washington, DC, January 3, 2022 – Miller & Chevalier Chartered announced today the elections of Gregory W. Bates and Lisandra Ortiz as Members of the firm, effective immediately. 

"We are thrilled to welcome Greg and Lisandra into the firm's Membership. This milestone in their careers couldn't be more well deserved – both have excelled in their respective practices and have proven to be skilled lawyers who consistently earn clients' trust," said Kathryn Cameron Atkinson, Chair of Miller & Chevalier. "We look forward to their continued achievements with the firm."

Mr. Bates focuses his practice on corporate compliance, with a proficiency in developing strategies for addressing corruption risk. He regularly advises clients on a range of white collar matters, internal investigations, risk mitigation, and monitoring and testing of compliance programs, including issues related to the Foreign Corrupt Practices Act (FCPA). He has held several key compliance positions within a Fortune 500 company, including as Compliance Director for the Latin American region while the Company was subject to the scrutiny of an independent monitor pursuant to an FCPA resolution, and has since served on two independent monitor teams. Fluent in Spanish and Portuguese, Bates has lived or conducted compliance and investigations work in nearly every Latin American country, including Argentina, Brazil, Honduras, and Uruguay. He has also advised on matters in Asia, Europe, the Middle East, and Africa. 

Mr. Bates has been noted as "one to watch" in Corporate Governance and Compliance Law by The Best Lawyers in America and was named a 2022 "Rising Star" in Legal 500 Latin America in Compliance and Investigations. 

"Greg's in-house experience, compliance program expertise, and deep understanding of Latin America has made him a key contributor at Miller & Chevalier, and we're proud to welcome him as a member," said James Tillen, Chair of the firm's International Department. "His ability to provide practical, implementable guidance, along with his work ethic and enthusiasm, will continue to be an asset to our clients."

Mr. Bates received a B.A. magna cum laude from Wheaton College, an M.A. cum laude from the University of Florida Center for Latin American Studies, and a J.D. cum laude from the University of Florida Fredric G. Levin College of Law.

Ms. Ortiz concentrates her practice on federal tax controversy matters, both in litigation and before the Internal Revenue Service (IRS) in examinations and Appeals. She is a principal advisor on the resolution of cross-border taxation disputes, including through the competent authority process and the negotiation of advance pricing agreements. Ms. Ortiz's experience includes counseling some of the world's largest corporations on issues involving international taxation, transfer pricing, and insurance taxation. She recently represented a Fortune 100 company in a landmark multi-billion-dollar transfer pricing case before the U.S. Tax Court. 

In recognition of her outstanding work, Ms. Ortiz has received numerous rankings in Legal 500, The Best Lawyers in America, and International Tax Review, including multiple "Rising Star" honors. 

"Lisandra's wide-ranging substantive tax expertise, combined with her impressive track record of effectively and successfully executing client matters throughout the litigation and administrative resolution processes, makes her an invaluable resource to our clients," said Marc Gerson, Chair of the Tax Department. "Her election to Member is a well-deserved recognition of the significant contributions she has made to our tax practice and the tax bar."

Ms. Ortiz received a B.B.A. summa cum laude from the University of Miami and a J.D. cum laude from the Georgetown University Law Center. 

About Miller & Chevalier 

Founded in 1920, Miller & Chevalier is a Washington, DC law firm with a global perspective and leading practices in Tax, Employee Benefits (including ERISA), International Law and Business, White Collar and Internal Investigations, Complex Litigation, and Government Affairs. In an era of big law, Miller & Chevalier is a top-ranked firm sharply focused on targeted areas that interact with the federal government. Over the past three years, the firm's lawyers have represented more than 40 percent of the Fortune 100, one-quarter of the Fortune 500, and approximately 30 percent of the Global 100. Based in Washington, DC, a significant number of firm lawyers have held senior positions in the U.S. government and have written many of the regulations they currently help clients navigate. For more information on the firm, visit



Matt Kasik, Media Relations, Greentarget, 847-772-1155