Isaac H. Ryan

Mr. Leche has over 40 years experience as a civil litigator representing corporations and insurance companies in a wide variety of matters including mass tort/disaster cases; insurance coverage; personal injury; product liability; and maritime, including Jones Act.

Josh Keller is a New Orleans native and Partner in the firm’s Civil Litigation section. His practice focuses mainly on personal injury defense and products liability matters. Josh primarily defends high net worth individuals through private client group insurers and publicly traded companies through Commercial General Liability (CGL) insurers. Most of the cases he defends involve multi-million dollar claims. Josh handles matters involving auto accidents, premises liability, insurance co...

Ian Atkinson is a seasoned trial and appellate lawyer whose practice spans complex commercial litigation, white-collar criminal defense, and tax litigation. He represents plaintiffs and defendants in high-stakes disputes in state and federal courts and has substantial experience handling matters through every stage of litigation, from pre-suit investigations and dispositive motion practice to trial and appeal. Ian has served as lead counsel in bench and jury trials and is regularly entrusted ...

Frank A. Tessier is a founding member of the firm who practices real estate, banking, corporate and oil and gas law. Banking and Finance: Represent lenders in commercial, construction, bond and equipment financing, and debt enforcement. Corporate: Preparation of organizational documents for corporation, partnerships and limited liability companies and related acquisitions. Real Estate: Representation in sales and exchanges of developed and undeveloped real estate; leases; residential subdivis...

Craig Isenberg is a trial and appellate lawyer focusing on complex litigation matters, including commercial disputes, mass and toxic torts, environmental, product liability and securities matters. Craig has extensive trial experience in high-stakes litigation—trying jury and bench trials in Louisiana and across the country. He has tried a significant Clean Water Act case against the Department of Justice, dozens of toxic tort trials involving hundreds of plaintiffs, and a variety of com...

Carl Hellmers is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. Carl practices law in New Orleans, Louisiana Best Lawyers has recognized Carl Hellmers since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Carl Hellmers is held by other lawyers.

Kathryn W. Munson is a lawyer recognized by Best Lawyers in the practice area of Appellate Practice. Kathryn W. practices law in New Orleans, Louisiana Best Lawyers has recognized Kathryn W. Munson since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kathryn W. Munson is held by other lawyers.

Brett Venn is a partner in the Litigation Practice Group. He focuses on business and commercial disputes. Brett represents energy clients in litigation concerning energy infrastructure, including pipelines and LNG facilities. He currently represents energy companies in tort actions, challenges to contracts, actions enforcing right of way and servitude agreements, and appeals of severance tax assessments. He has also represented energy-industry clients in contract disputes, shareholder dispute...

Philip D. Nizialek is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation and Insurance Law. Philip D. practices law in New Orleans, Louisiana Best Lawyers has recognized Philip D. Nizialek since 2014. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Philip D. Nizialek is held by other lawyers.

Lon LeSueur’s multi-faceted practice focuses on complex and commercial litigation. He has deep litigation experience, having earned victories for his clients in state and federal courts in Texas, Louisiana, and Mississippi, as well as various arbitration forums. Lon has successfully represented clients through all stages of litigation from case development and initial fillings, motion practice, discovery, trial, and appeal. Lon has first-chair trial experience, and his appellate work in...