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Bryan Jules O’Neill

Bryan J. O’Neill began his legal career with the Derbes Law Firm in 2016. Mr. O'Neill assists clients in a variety of commercial transactional matters, including entity election and startup, corporate governance, mergers and acquisitions, real estate, as well as general business related matters. Over the course of his career, he has drafted, reviewed, and negotiated numerous types of contracts, including commercial leases, purchase agreements, sale agreements, phantom stock agreements, employment agreements, confidentiality and non-disclosure agreements, and settlement agreements. When necessary, his commercial practice extends to a variety of commercial disputes in state court litigation. Mr. O'Neill also regularly handles matters in federal and bankruptcy courts when the matter concerns complex commercial disputes.

Beyond his commercial practice, Mr. O'Neill maintains an active practice in estate planning and succession administration. Mr. O'Neill also regularly advises clients on the division of retirement plans through Qualified Domestic Relations Orders. Mr. O'Neill further practices in administrative law, including handling matters at the administrative level or enforcing administrative decisions in state court. Mr. O'Neill rounds out his practice handling appeals in many venues, which includes having successfully defended two writs to the Louisiana Supreme Court.

During law school, Mr. O'Neill served as the Editor-in-Chief of the Loyola Maritime Law Journal, was a member of the Judge John R. Brown Admiralty Moot Court Team and was the research assistant to Professor Nikolaos Davradros for a project that was ultimately published in the Louisiana Law Review, A Louisiana Theory of Juridical Acts, 80 La. L. Rev. 1120 (2020).

Mr. O'Neill is an active member of the St. Thomas More Loyola Law American Inn of Court, currently serving as the Inn’s Programming Chair. He is also a member of the advisory board of the Loyola Maritime Law Journal and frequently serves as a guest judge for the Loyola Moot Court program.  He and his wife, Amy, live in Metairie. They have one daughter.

Education & Certifications

Education & Certifications

  • Loyola University New Orleans College of Law, J.D., 2016
  • Tulane University, B.S., 2012
Bar Admissions & Organizations

Bar Admissions:

  • Louisiana State Bar Association, 2016
  • United States District Court, Eastern District of Louisiana, 2016
  • United States District Court, Middle District of Louisiana, 2016
  • United States District Court, Western District of Louisiana, 2016
  • United States Court of Appeals, Fifth Circuit, 2016

Legal Organizations:

  • Member, Louisiana State Bar Association
  • Member, Jefferson Bar Association
  • Member, New Orleans Bar Association
  • Barrister Member & Program Chair, St. Thomas More Loyola Law American Inn of Court
Lectures & Publications

Publications:

Pollution on the High Seas: From Jurisdiction to Enforcement and All the Moving Parts in Between, Loyola Maritime Law Journal, Authors: Bryan O’Neill & Emily Hall, 15 Loy. Mar. J. 375 (2015)

The Supreme Court of O’Neill: Is a Polygamous Marriage Included in the Fundamental Right to Marry?, 2016 Annual Family Law Essay Contest, Louisiana State Bar Association Section on Family Law, Author: Bryan O’Neill, 1st Place Winner

CLE Authored and Instructed:

"Firm Registration, Foreign Preparers and Oversight," [with Shelley Ostrem, Frances McClintock, and Sunshine Chow], NASBA 44th Annual Conference for Executive Directors and Board Staff with State Society CEOs, March 25, 2026)

"Death of the Attestation Clause?: Updates and Practical Guidance on Estate Planning and Successions," [with Hon. Raymond S. Steib, Jr.] (Jefferson Bar Association CLE by the Sea, March 13, 2026)

"Artificial Intelligence in the Legal Profession: Ethics, Risks, and Practical Use," (St. Thomas More Loyola Law School American Inn of Court, March 10, 2026)

"Louisiana Probate Process from Start to Finish," Sections on Inventory and Appraisement and Succession vs. Non-Succession Assets, [with five other practitioners], (NBI, December 13, 2024)

"Successions for New Practitioners," [with Jared Scheinuk and Jessica Bach], (The Pro Bono Project, April 20, 2023)

Cases, Transactions & Appointments
  • Succession of Catchings, 22-460 (La. App. 5 Cir. 9/26/23); 370 So.3d 1251, writ denied, 23-1342 (La. 12/19/23), 375 So.3d 410.
  • Succession of Rivera, 21-312 (La. App. 5 Cir. 2/23/22); 336 So.3d 587.
  • Powell v. State Board of Certified Public Accountants of Louisiana, 2021-0385 (La. App. 4 Cir. 12/22/21); 366 So.3d 396, writ denied, 22-00162 (La. 03/15/22), 334 So.3d 396. 
  • In re Sylvester, 2021 WL 1422939 (E.D. La. 2021).
  • Korrapati v. Augustino Bros. Constr., LLC, 19-426 (La. App. 5 Cir. 7/31/20); 302 So.3d 147.
  • In re Sylvester, 2020 WL 1140890 (E.D. La. 2020).
  • Water Works Pump & Well, Inc. v. Marilyn P. Zackin, 2016-1241 (La. App. 1 Cir. 4/12/17); 2017 WL 1376523.
Rated by Super Lawyers


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Bryan ONeill

Contact

Direct Dial: 504.207.0907
Direct Fax: 504.832.0332

boneill@DerbesLaw.com

Practice Areas

Business Organizations
  • Entity Selection and Startup
  • Operating Agreements and By-laws
  • Entity Wind-up and Dissolution
Commercial Litigation
  • Breach of Contract Litigation
  • Business Owner Dispute Litigation
  • Business Liquidation Litigation
Commercial Transactions
  • Business Advice
  • Contract Drafting & Negotiation
  • Mergers and Acquisitions
  • Stock/Asset Sales & Purchases
  • Member/Shareholder Disputes
End of Life
  • Wills
  • Powers of Attorney
  • Successions
  • Succession Litigation

Qualified Domestic Relations Orders

Appeals

Real Estate