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September 2023 | Breazeale Welcomes Mary Katherine Loos

Mary Katherine Loos
Danielle L. Borel

Mary Katherine Loos

Associate - Baton Rouge

Mary Katherine Loos is an associate in the Baton Rouge office of Breazeale in the Commercial Litigation practice group. Mary Katherine earned her B.A., summa cum laude, from Louisiana State University in 2018 and was a member of Phi Beta Kappa. She earned her J.D./D.C.L. from LSU Law Center in 2021, where she was a winner of the 2019 Robert Tullis Moot Court Competition, admitted to Order of the Barristers, and a member of Board of Advocates.

Practice Areas


Paul M. Hebert Law Center, Louisiana State University, J.D./D.C.L., 2021

Louisiana State University, B.A., summa cum laude, 2018


Louisiana, 2021

United States District Court for the Eastern, Middle and Western Districts of Louisiana, 2021

United States Court of Appeals, Fifth Circuit, 2021

Professional Associations

Wex S. Malone American Inn of Court

Baton Rouge Bar Association

Louisiana State Bar Association

Federal Bar Association

American Bar Association

Bar Association of the Fifth Federal Circuit

Community Involvement

St. James Episcopal Church Outreach Ministries

Belly Up with the Bar, Baton Rouge Bar Association


  • “Protecting Health Care Providers During Pandemic: Gross Negligence Standard Applies for Premises Claims Against Physicians and Health Care Providers” LADC Newsletter, November 2022
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