1201 Elm Street
Suite 2550
Dallas, Texas 75270T: 214.646.3422

Practice Areas

Practice Emphasis

  • Labor and Employment

Bar & Court Admissions

  • Texas
  • U.S. District Courts for the Northern, Southern, Eastern and Western Districts of Texas
  • U.S. Court of Appeals, Fifth Circuit


Baylor University Law School

  • J.D., 2002 

The University of Texas at Austin

  • B.A, Economics, 2000

Seminars & Presentations


William E. Hammel

William "Billy" Hammel is a partner in the Dallas office of Constangy. Billy's practice includes counseling and representing employers in the areas of employment law, labor relations, compensation and benefits, workplace safety, corporate governance, officer and director liability, preventative counseling,  liability and risk management, and best practices. He regularly represents employers in a wide variety of labor and employment law matters before administrative agencies and in state and federal courts.

Billy's practice also includes drafting and litigating employment agreements and restrictive covenants, trade secret agreements, independent contractor agreements, vendor agreements, and corporate agreements.

Billy's primary focus is on helping clients avoid litigation in the first place through preventative counseling, compliance counseling and training, internal audits, investigations, and damage control.


Regularly speaks and conducts training in a wide variety of matters, including EEO and compliance training, risk mitigation, corporate governance, and best practices.
    Texas Employment Law Letter, Co-Editor (since 2011)
      "Hot Topics in Employment Law," Airports Council International, 2014 Legal Affairs Spring Conference

      "Optimizing Jury Selection in Commercial Litigation: Strategic Use of Questioning, Strikes and Social Media," Strafford Publications, February 2014

      "Advanced Deposition Techniques: Leveraging Exhaustion, Boxing-In, and Summarization Approaches with Adverse Witnesses," Strafford Publications, March 2014

      "Witness Impeachment Strategies & Proven Techniques for 2014," National Constitution Center Publications, January 2014

      "Cross-Examining Hostile Witnesses and Using Technology and Psychology as Additional Tools," Strafford Publications, December 2012 and 2013

      Awards & Recognition

      • Named a Texas Super Lawyer, 2012-2015

      Professional Activities/Associations

      • Dallas Bar Association – CLE Committee
      • Employers Counsel Network

      Civic/Charitable Activities/Associations

      • Board Member, Exodus Ministries
      • Fundraising and Community Service for local non-profits
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