M. Shannon Kackley

E-mail MeM. Shannon Kackley

Senior Associate
Austin, Texas

M. Shannon Kackley is a Senior Associate with the Firm. He joined the Firm in 2015, and handles city attorney/general counsel, litigation and appellate matters. Mr. Kackley earned his LL.M. from Southern Methodist University Dedman School of Law in 2001, his Juris Doctorate from Baylor University School of Law in 1994, and his Bachelor of Arts from The University of Texas at Austin in 1991. He was admitted by the State Bar of Texas in 1994. Mr. Kackley was previously employed at Gay, McCall, Isaacks, Gordon & Roberts, P.C. where he represented governmental entities and handled defense litigation. Prior to that, he served as Assistant City Attorney for the City of Garland, Texas. He was the Chief Municipal Prosecutor before transferring to the Civil Litigation Division. He taught Fourth Amendment classes at the City of Garland's Police Academy and successfully defended the constitutionality of Garland's Municipal Court before the Court of Appeals. In the Civil Litigation Division, Mr. Kackley worked with the Police Department and Code Enforcement to abate public nuisances within the city. In addition, he advised departmental directors on legal issues. Mr. Kackley served in the U.S. Army from 1986 to 1989. He graduated from Airborne School and served as an Assistant Squad Leader on a Bradley Fighting Vehicle with the 24th ID in Fort Stewart, GA. Mr. Kackley has served as a Housing Trust Fund Board Member for the City of Frisco, and a Grant Judge for Plano I.S.D. He currently volunteers with the House on the Corner Project with his church.

Year Joined Firm

  • 2015

Areas of Practice

  • State, Local and Municipal Law

Bar Admissions

  • Texas, 1994


  • Southern Methodist University School of Law, Dallas, Texas
    • LL.M., Master of Laws - 2001
    • Major: Tax
  • Baylor University School of Law, Waco, Texas
    • J.D.
  • Airborne School
  • University of Texas at Austin, Austin, Texas
    • B.A. - 1991


  • Teacher, Garland's Police Academy

Past Employment Positions

  • U.S. Army, 1986 - 1989
  • Bradley Fighting Vehicle with the 24th ID in Fort Stewart, GA, Assistant Squad Leader

Pro Bono Activities

  • Housing Trust Fund Board Member for the City of Frisco
  • Grant Judge for Plano I.S.D.