Seth C. McMillan

Seth C. McMillan


Santa Fe, NM



Seth C. McMillan is a shareholder in the Santa Fe office. Seth represents clients in a wide variety of litigation matters, including wrongful death, products liability, general tort litigation, insurance coverage and bad faith defense, banking litigation, and education law.  Representative clients include banks and other financial institutions, automakers, tire manufacturers, supermarkets, restaurant chains, and New Mexico state agencies.

Seth is also developing expertise in oil & gas law, real estate and property law. He has significant experience drafting appellate briefs for both the New Mexico Court of Appeals and the New Mexico Supreme Court.

Prior to joining Montgomery & Andrews in September 2008, Seth served as a judicial law clerk to the Honorable Lynn Pickard of the New Mexico Court of Appeals.  While in law school, Seth served as manuscript editor on the New Mexico Law Review.  He also served as a judicial extern to the Honorable James A. Parker, U.S. District Court.

Prior to law school, Seth conducted geochemical research at Los Alamos National Laboratory and was a Program Coordinator at Santa Fe Institute.



University of New Mexico School of Law
Juris Doctor, cum laude, 2007

Amherst College
Bachelor of the Arts, magna cum laude with Departmental Distinction in Geology, 1997

Professional Memberships and Activities

New Mexico Supreme Court Rules of Civil Procedure Committee
First Judicial District Bar Association (Secretary, 2013) (Vice President, 2014) (President, 2015)
City of Santa Fe Ethics and Campaign Review Board Member
Santa Fe County Teen Court Judge
Oliver Seth American Inn of Court
State Bar of New Mexico
U. S. District Court for the District of New Mexico
American Bar Association


  • “District Court Review of Judicial Officers in New Mexico Domestic Violence and Domestic Relations Cases: Rethinking the Rules,” New Mexico Law Review, Volume 36, Number 2 (2006)
  • “New Mexico Supreme Court Establishes New Mexico Procedure for Protection of Trade Secrets,” New Mexico Defense Lawyers Association Defense News, Summer 2009


Super Lawyers: named Southwest Rising Star 2014 – 2018

UNM School of Law:  New Mexico Law Review, Manuscript Editor

UNM School of Law:  W.E. and Hazel J. Bondurant Merit Scholarship