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Sonja J. McGill

Sonja McGill has extensive experience as a trial attorney in all phases of employment law, labor law, and commercial litigation. Sonja provides strategic advice and counsel on a broad range of employment issues, including recruiting, hiring, employee relations, discipline and terminations, internal investigations, leaves of absence, wage and hour compliance, labor relations, EEO compliance, contingent worker issues, and business-based immigration.

Sonja is a seasoned mediator and negotiator, and has recently been selected to become an arbitrator for American Arbitration Association. Additionally, she regularly gives presentations and seminars on employment law training programs for companies’ HR and management departments and assists with formulating and revising HR policies.

Before re-entering private practice, Sonja served as in-house counsel for HMS Holdings, Inc. and J.C. Penney Corporation. Sonja has successfully tried multiple labor and employment claims throughout the U.S. in state court, federal court, and arbitrations as the lead trial attorney throughout her career.


  • J.D., The University of Texas School of Law, 1998
  • MPA, The University of Texas at Austin LBJ School of Public Affairs, 1998
  • B.A., Princeton University, 1993


  • State Bar of Texas
  • United States Supreme Court
  • United States Court of Appeals for the Fifth and Tenth Circuits
  • United States District Court for the Northern, Southern, Eastern and Western Districts of Texas
Representative Matters
  • Achieved a take-nothing defense verdict for two individuals accused of civil conspiracy, theft of corporate trade secrets and fraud by their former company following a three-week jury trial in Texas state court.
  • Successfully achieved a defense verdict for two employment arbitrations in a six month period regarding a national origin discrimination, harassment and retaliation case in Florida, as well as an age discrimination, promissory estoppels and retaliation case in Indiana.
  • Won winning summary judgment motions nationwide on a broad range of employment law issues, including national origin discrimination (Ohio); age discrimination (Massachusetts); disability discrimination (Connecticut); sex discrimination, retaliation, and promissory estoppel (Colorado); sexual harassment, retaliation, and promissory estoppels/detrimental reliance (Minnesota); wrongful discharge and defamation (New York); and workers’ compensation retaliation (Oklahoma).
  • Routinely represents employers on real-time counseling for employment claim avoidance and advice on pending claims.
Activities & Memberships
  • SPCA of Texas, Board of Directors
  • Fair Park First, Member, Board of Directors
  • Dallas Regional Chamber of Commerce Leadership Dallas Alumni Association
  • The Village Giving Circle at the Texas Women’s Foundation, Founding Member
  • The Center for Women in the Law at the University of Texas at Austin, Leader’s Circle Member
  • The Coalition for a New Dallas, Advisory Board Member
  • Attorneys Serving the Community
  • Texas Bar Foundation, Fellow
  • Dallas Bar Foundation Fellow
  • Dallas Young Lawyers Association, Fellow
  • Dallas Bar Association, ADR and L&E Sections
  • Bar Association of the 5th Federal Circuit
  • American Bar Association, ADR and L&E Sections
  • J.L. Turner Legal Association
  • Princeton Alumni Association of Dallas/Fort Worth, Past President
  • Theatre 3, Former Chair, Board of Directors
  • Oak Cliff YMCA, Former Chair, Board of Managers
  • Out Teach (REAL School Gardens), Former Board Member
  • Big Thought, Former Board Member
  • Dallas Historical Society, Former Board Member
  • Grand Park South Tax Improvement Dist., Former Board Member
  • Executive Women of Dallas
  • DSO African-American Music Festival Planning Committee
  • African-American Museum Anniversary Gala Committee
  • North Texas Lead Participant, January 2010
  • Congressional Black Caucus Foundation, Emerging Leaders Empowerment Series Participant, 2008 Convention
  • Junior League of Dallas, Former Member
  • Legal Services of North Texas Womens’ Advocacy Awards Reception, Former Committee Member
  • Genesis Women Shelter Alliance, Former Member
  • Meals on Wheels, Former Volunteer
  • American Journal of Criminal Law, Member
  • ”Workplace Culture, a.k.a. Employment Law 101,” Texas Security Bank Leadership Academy, July 31, 2019.
  • "The Latest Developments in the #MeToo Movement," Dallas Bar Association Labor & Employment Law Section, May 26, 2019.
  • "Are You a Big Fish in a Small Pond or a Small Fish in a Big Pond?" LCLD Fellows Alumni Advocacy Groups, January 31, 2019.
  • “FINRA’s 2018 Annual Examination Priorities,” 2018 FPA DFW Annual Conference, May 16, 2018.
  • “Latest and Greatest Developments in Labor & Employment Law Update,” Texas Legal Counsel, January 30, 2018.
  • “FINRA’s 2017 Annual Examination Priorities,” DFW Compliance Roundtable, February 8, 2017.
  • “Recent Expansions for Employees of Government Contractors,” DallasHR, October 15, 2015.
  • American Arbitration Association’s “Roster of Arbitrators,” 2019
  • Texas Diversity Council, “Dallas Top 50 Women Lawyers Award,” 2018
  • National Diversity Council, "Top 50 Multicultural Lawyers in Dallas," 2017
  • FINRA Arbitrator
  • Named one of the "Best Lawyers in Dallas" by D Magazine, 2017, 2018 and 2019
  • 2016 Leadership Council on Legal Diversity Fellow
  • Lyndon B. Johnson School Fellowship (full tuition scholarship)
  • Austin Independent School District Mentor Award