William H. Langenstein

Of Counsel

With over three decades of experience, William Langenstein has assisted clients on taxation, real estate, and both corporation and business law. He is an honorary consul to the Republic of Korea, a member of the New Orleans Estate Planning Council, and sits on the board of several companies.

Additionally, Bill was appointed to several state commissions, including the Port of New Orleans, where he served as chairman, served as the New Orleans Public Belt Railroad commissioner, the New Orleans Mayor’s Economic Development Advisory Committee, and the State of Louisiana Board of Appeals for Local Sales and Use Tax. He also served as Chairman of the Section of Taxation of the Louisiana Bar Association and was a member of Governor Bobby Jindal’s Transition Team.  Bill is a 2004 graduate of the New Orleans Regional Leadership Institute.

Bill earned a Juris Doctorate from Loyola University New Orleans in 1977 and received his Bachelor of Science in Accounting from Louisiana State University and A&M College in 1974. He is a board-certified tax attorney, a licensed title insurance agent, and an inactive certified public accountant. He is admitted to practice law in Louisiana State Courts, the Eastern District of Louisiana’s Federal Court, and the United States Tax Court.


  • Selected for inclusion in The Best Lawyers in America® for Closely Held Companies and Family Businesses Law, Corporate Law, Tax Law, and Business Organizations, 2015 – present
  • Named as City Business Leadership in Law Honoree, 2017
  • Named as a Top Lawyer by New Orleans Magazine, 2016 -2023
  • AV Preeminent® Peer Review Rating in Martindale-Hubbell


Bill serves or has served on several non-profit and community boards, including:

  • Board of Directors of Children’s Hospital New Orleans, 2023
  • Board Member, Audubon Nature Institute, 2023
  • Greater New Orleans Development Foundation (WYES-TV), 2023
  • New Orleans Academy for Science and Mathematics
  • New Orleans Board of Trade
  • Greater New Orleans, Inc.,
  • The Committee of 100
  • Former board member, National Kidney Foundation
  • Steering Committee, Louisiana Children’s Museum Early Learning Village