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In my labor and employment practice, I represent clients in trials, hearings and proceedings on a range of issues arising from workplace conflicts. Preventing disputes from surfacing in the first place is the best strategy, and I frequently present seminars to help educate employers on how to prevent problems from occurring or curb them at an early stage.

Diana Cole Surprenant assists clients in the oil and gas, construction, manufacturing, agricultural, hospitality, health care and pharmaceutical arenas. She focuses on products liability and toxic tort matters and represents clients in the state and federal courts, including in multi-district litigation. She also serves as the leader of the firm’s Products Liability Team. In addition, she represents health care providers in medical malpractice suits.

 She also advises employers in state and federal courts, arbitration proceedings and in administrative proceedings before the Equal Employment Opportunity Commission and the Louisiana Commission on Human Rights.

At the appellate level, Diana maintains an active post-trial motion practice and drafts appellate briefs stemming from toxic tort litigation and medical malpractice litigation. She also applies for emergency supervisory writ applications before the Louisiana appellate courts. At trial, Diana often draws on her appellate experience to preserve objections.

When she previously clerked for Judge Jay C. Zainey in the US District Court, Eastern District of Louisiana, Diana gained great admiration for the judge’s ability to use his legal abilities and knowledge to improve the lives of those in the surrounding community and inspire lawyers to do the same.

Diana is an active member of the Young Friends of St. Andrew’s Village, an organization that helps people with special needs. She also provides legal consultation and notary services through the Homeless Experience Legal Protection program. Diana also serves as President of the ABA/EEO Committee for Liaison with the EEOC, DOJ, and OFCCP, which offers continuing legal education seminars in the field of labor and employment.

My integrity, diligence and determination enable me to develop solutions to complex issues and build long-lasting relationships with clients.


  • The Catholic University of America, Columbus School of Law, J.D., 2010
  • Colby College, B.A., 2007

Bar Admissions

  • Louisiana

Professional Affiliations & Memberships

  • Louisiana State Bar Association
  • American Bar Association
  • Young Friends of St. Andrew’s Village
  • SOLACE (Support for Lawyers/Legal Personnel - All Concern Encouraged)
  • Federal Bar Association
  • HELP (Homeless Experience Legal Protection)
  • Young Leadership Council
  • The Antithetical Definition of Personal Seizure: Filling the Supreme Court Gap in Analyzing Section 1983 Excessive-Force Claims Arising After Arrest and Before Pretrial Detention, 59 CATH. U. L. REV. 493 (2010).
  • The Emerging Battlefield: Should the Use of a Nonmonotonic, Non-Threshold Dose-Response Curve for Alleged Endocrine-Disrupting Chemicals Survive a Daubert/Frye Challenge?, Co-author, 80 Def. Couns. J. 45 (2013).
  • Current Regulatory and Liability Issues for Drug Compounding, DRI: For the Defense, Co-author(Sept. 2013).