Karel Mazanec

Mazanec Karel

Karel Mazanec focuses his practice on labor and employment matters. Karel works with employers across a wide variety of industries, including healthcare, education, construction, financial services, government contractors, nonprofit organizations, and the public sector. He assists clients with a broad range of litigation matters, including discrimination, harassment and retaliation, wage and hour, whistleblower and employment contract disputes, under both federal and state laws. He also counsels employers on a multitude of labor relations and compliance issues, and represents clients in grievance arbitrations and matters before the National Labor Relations Board (NLRB).

Karel has experience working with clients to develop personnel policies and employee handbooks, address compliance issues under federal wage and hour laws, and make hiring, termination, and other personnel decisions. He has helped employers draft a variety of employment documents, including employment contracts, independent contractor agreements, confidentiality agreements, non-competition and other restrictive covenant agreements, and severance agreements.



Representative Matters

Employment Litigation

  • Won an arbitration before the International Centre for Dispute Resolution that dismissed all age discrimination claims brought against a global health partnership
  • Represented a construction client in D.C. superior court seeking to dismiss whistleblower and discrimination claims brought under a joint-employer theory
  • Drafted an EEOC Position Statement on behalf of a government contractor client sued by a former employee claiming that the employee was unlawfully terminated because of a disability

Labor Relations

  • Represented a major healthcare system in a collective action grievance alleging wrongful discharge following a mass layoff of employees
  • Attained a dismissal of an Unfair Labor Practice charge alleging that the employer failed to bargain in good faith and did not furnish the union with relevant information
  • Drafted the winning post-hearing brief for a large public sector client following an interest arbitration hearing

Employment Counseling

  • Counseled a name brand multinational corporation on compliance with Title III of the ADA with respect to the client's websites, kiosks, and other touchscreen devices
  • Advised a financial services client on its employee non-competition and non-solicitation agreements under state law
  • Developed guidance on the requirements and potential impact of new OSHA regulations on the operations of a major retail client




  • J.D. William & Mary Marshall-Wythe School of Law 2015
    • Executive board member, William & Mary Moot Court Team
    • Staff member, William & Mary Law Review
  • B.A. Political Science and Psychology University of North Carolina at Charlotte 2010

Bar Admissions

  • District of Columbia
  • Maryland


Pro Bono

  • Serves as a volunteer attorney for local immigration consultation clinics sponsored by the DMV Immigration Alliance

Personal Activities