Allison Biggs graduated from Henderson High School then received her Bachelor’s degree in Philosophy from Southern Methodist University in Dallas where she graduated Magna Cum Laude. While attending law school at SMU, she studied abroad at Oxford University in England.

After she graduated from law school in 2003, she moved back to East Texas to serve as an Assistant District Attorney for Smith County. In January 2005, she returned to Henderson to serve as an Assistant District and County Attorney for Rusk County.

During her four years as a prosecutor in both Smith and Rusk counties, Allison tried hundreds of cases. In January 2008, she opened her own private practice in Henderson, Texas, where she practices primarily criminal defense, family law, and personal injury law. Her long history on both sides of the law has given her incredible insight into the legal system. Having tried a wide variety of cases, from traffic tickets to capital murder, she knows the way her adversaries think and utilizes this knowledge to her clients’ advantage.

“I am passionate about my work. I work each individual case with the dedication and scrutiny I would want if it were my own. I take pride in the results I have achieved for my clients over the past eighteen years.”

Allison is a member of the State Bar of Texas, the Texas Bar Foundation, the American Bar Association, and the Rusk County Bar Association. She is licensed to practice in federal court in the Eastern District of Texas.

As a long-time resident of Rusk County, Allison has deep roots in the community. She is married to Kenneth Morgan Biggs, founder and managing partner of the Law Firm of Biggs & Greenslade, PC. They currently live in Henderson with their 15 year old son, Brian, and 18 year old daughter, Ashton. Her family attends the First United Methodist Church in Henderson.

James Rosenthal


James Rosenthal has been a practicing attorney since 2003. He is experienced in various areas of civil practice in both Kansas and Texas.

Here at the Biggs Law Group, PLLC, James will focus on family law, civil litigation, and simple probate, however he is also skilled in handling other legal matters for our clients as needed.

James graduated high school from Coffeyville, Kansas in 1995. He then obtained degrees in Business Leadership and History from Southwestern College, in Winfield, Kansas in 2000. After earning his bachelor’s, James attended law school at The University of Kansas, School of Law, where he graduated in the top fifth of his class in 2003.

While in law school, James:

  • Earned two highly sought-after research assistant positions
  • Was peer-appointed as the Articles Editor for the Kansas Journal of Law & Public Policy
  • Co-authored an award-winning moot court brief
  • Actively worked cases under the supervision of an attorney

With eighteen plus years as a licensed attorney in two states, James offers our clients the benefit of an experienced, passionate litigation attorney with a unique perspective and uniquely versatile skills that he vigorously brings to the courtroom on behalf of our clients.