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Mary’s practice encompasses all aspects of commercial litigation and labor and employment, including Employee Retirement Income Security Act (ERISA) and employee-benefits litigation.

She has obtained defense judgments for employers in multiple jury and bench trials and arbitrations, represented employers in dozens of labor arbitrations, advised corporate directors in ERISA class-action lawsuits, and drafted and counseled on executive employment agreements and noncompete agreements.

Mary’s litigation experience provides a solid base for advising clients in the energy and healthcare industries on best employment practices for avoiding litigation by:

  • Consulting on employee issues from hiring to discharge
  • Training of HR staff on compliance and investigations
  • Advising on and litigating employment claims
  • Advising on purchase and sale agreements on employee-related issues
  • Drafting corporate and employment policies

Mary is a member of the firm's Executive and Partner Boards.




  • The Best Lawyers In America, Commercial Litigation, Employment Law-Management, Labor Law-Management, Litigation-Labor & Employment, 2011-2019; Denver Labor Law-Management "Lawyer of the Year," 2015 
  • BTI Consulting Group, Client Service All Star Award, 2014
  • Chambers USA, Labor & Employment Law, 2015-2018
  • Colorado Super Lawyers, Employment & Labor, 2006-2018; Top 100, 2012-2013; Top 50 Women, 2012-2015; Top 25 Women, 2011
  • The Denver Business Journal, Power Book Finalist, 2011
  • Martindale-Hubbell AV Preeminent


  • J.D., University of Denver College of Law
      • Order of St. Ives
      • Denver University Law Review, Editor
  • B.A., University of Maine
    • with highest distinction
      • Phi Beta Kappa


  • Colorado
  • U.S. District Court, District of Colorado
  • U.S. Court of Appeals, Tenth Circuit
  • U.S. Supreme Court

Professional Associations and Memberships

  • Colorado Bar Association
  • Denver Bar Association
  • Faculty of Federal Advocates


The Hon. Jim R. Carrigan, U.S. District Court, District of Colorado

  • Represented home healthcare agency in defense of Fair Labor Standards Act(FLSA) and related employment claims.
  • Represented healthcare system in defending EEOC charges and providing HR advice for nursing center.
  • Obtained decertification of an FLSA collective action.
  • Guided a $12-million acquisition in the rigid-container manufacturing industry on employment and immigration issues.
  • Achieved favorable outcome in defense of employer in arbitration of multimillion-dollar claim by former executive.
  • Regularly provide guidance to clients on full range of matters, including worker classifications and investigations and training management and human resources professionals on immigration, benefits and social media issues.
  • Obtained dismissal of FLSA claims in federal court after employee refused to arbitrate claims.
  • Obtained dismissal of all claims brought by former bank officer against bank.
  • Defended employer in collective bargaining grievance filed by demoted employee, who alleged that the employer discriminated against him based on sex, race, national origin and disability in violation of state and federal laws and in retaliation for previous complaints. Secured favorable results for client.
  • Represented employer when plaintiffs alleged that union members, with the implied approval of their employer, violated federal labor statutes by manipulating union votes to approve a collective bargaining agreement and obtained a dismissal of all claims.
Community Leadership
  • Colorado Legal Aid Foundation, former Chair
  • University of Colorado School of Medicine, Center for Women’s Health Research, Advisory Board, Chair
  • Women’s Foundation of Colorado, former Chair