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Theresa M. Leith

Theresa Leith is an associate who supports clients across the firm’s practice areas, including bankruptcy, commercial litigation, estate planning, successions, and retirement orders. She joined the firm in 2025.

She earned her JD from Tulane University Law School in 2025 and her undergraduate degree from Cornell University. While at Tulane, she served as Senior Articles Editor for the Journal of Law & Sexuality, where she honed valuable legal research, editing, and writing skills. She also worked as a student attorney in the Civil Rights & Federal Practice Clinic, gaining hands-on experience in client advocacy, including motion practice and discovery.

Born and raised in Mandeville, Louisiana, Theresa enjoys exploring used bookstores, traveling, and spending time outdoors.

Education & Certifications

Education

  • Tulane University Law School, J.D., 2025
  • Cornell University, B.A., 2021
Bar Admissions & Organizations

Bar Admissions

  • Louisiana State Bar Association, 2025

Legal Organizations:

  • Member, Louisiana State Bar Association
Theresa M Leith

Contact

Direct Dial: 504.207.0914
Direct Fax 504.384.2963

tleith@DerbesLaw.com

Practice Areas

Bankruptcy

Commercial Litigation

End of Life
  • Successions
  • Succession Litigation 
  • Estate Administration 
  • Estate Planning

Retirement Orders