Hayley Ellison


Hayley Ellison is senior counsel with Davis & Santos. She focuses her practice on commercial litigation and appeals.

Prior to joining Davis & Santos, Hayley served as a staff attorney to Chief Justice Sandee Bryan Marion at the Texas Fourth Court of Appeals and practiced commercial litigation in Dallas. Hayley has handled complex commercial litigation and appeals in federal and state courts and has represented plaintiffs and defendants in diverse industries, including energy, real estate, information technology, banking, hospitality, construction, and entertainment. In her appellate practice, Hayley has drafted petitions and briefs in Texas and federal courts of appeals, including an amicus curiae brief to the Supreme Court of the United States.


St. Mary’s University School of Law, J.D. (2010)

Trinity University, B.A. Political Science, cum laude (2007)


  • Texas Super Lawyers “Rising Star” in Business Litigation (2017-2018)
  • National Association of Women Lawyers Outstanding Law Graduate (2010)
  • Editor-in-Chief, The Scholar: St. Mary’s Law Review on Race and Social Justice (2009-2010)
  • Phi Delta Phi International Legal Honor Society (induced 2008)


  • Law Clerk to the Honorable Judge W. Royal Furgeson,
  • United States District Court for the Northern District of Texas (2011-2012)
  • Briefing Attorney to the Honorable Justice Sandee Bryan Marion, Texas Fourth Court of Appeals (2010-2011)

Memberships & Activities

  • Bexar County Women’s Bar Association & Foundation, Board Member
  • Junior League of San Antonio, Vice President-Elect of Membership Development
  • San Antonio Bar Association Appellate Practice Section, Chair
  • State Bar of Texas Appellate Section, The Appellate Advocate Committee Member
  • Texas Bar Foundation, Fellow
  • YWCA San Antonio, Board Member


Admitted To Practice

  • State Bar of Texas, 2010
  • United States Court of Appeals for the Fifth Circuit
  • United States District Court for all Districts of Texas

Board Certification

Practice Areas

Bankruptcy Disputes
Commercial and Complex Business Litigation
General Litigation