Kopperl Family Lawyers

John B. Runge has been representing Texans in crisis since 1982, and has vast experience in litigating complex cases throughout the State of Texas.

When I first set out to study law, I recognized that although a traditional education is vital, having first-hand experience and specialized areas of focus are invaluable. While attending South Texas College of Law, I worked as a Law Clerk at a personal injury law firm, and also completed a program to become a certified mediator. Balancing my work at a high-profile personal-injury law firm honed my litigation skills, deepened my understanding of the law, and strengthened my time-management skills. Although it was a challenge to sustain all three, my dedication has never wavered. When I was younger, I was in constant...

I hold Board Certification in Family Law from the Texas Board of Legal Specialization. My legal practice is centered around child custody issues, divorce proceedings, modification suits, as well as premarital and postmarital agreements, among other family-law related matters. While I advocate for amicable resolutions, I am a strong and strategic advocate for my clients' rights. I take a solution-oriented approach and enjoy crafting creative strategies, especially in cases involving children. I primarily serve clients in Dallas, Denton, Tarrant, and Collin Counties.

As a partner at Fears | Nachawati, John manages the firm’s criminal defense and family law practice sections. These courtroom intensive areas of law often carry high stakes for those involved. John enjoys the challenge of arguing his clients’ cases before a judge and jury. Originally from Louisiana, John attended high school at the Culver Academies in Indiana. He attended Texas A&M University where he received his Bachelor's degree in Political Science. After college, John earned his Juris Doctor from South Texas College of Law in Houston, Texas. John is licensed to practice in...

Samantha Chambers began her legal career as a prosecutor with the Collin County District Attorney’s Office in September 2008, shortly after graduating with honors from the SMU Dedman School of Law in Dallas. Prior to law school, Mrs. Chambers received both Bachelor and Master of Arts degrees in English from Texas A&M University where she taught rhetoric and composition. During law school she focused her studies and experience on criminal procedure and litigation. She interned for two years with the Dallas County District Attorney’s Office where she worked on misdemeanor and felony cases. She also served as a Vice President...

Karen A. Alexander is a graduate of Baylor University, School of Law. Mrs. Alexander is the owner of Alexander & Associates and specializes in criminal cases. Since opening her own law office, Ms. Alexander has successfully negotiated and tried criminal cases in both County Courts and District Courts throughout Denton, Dallas and Tarrant Counties. A prosecutor has described Ms. Alexander as "a damn good lawyer" and a Judge commented that Ms. Alexander demonstrated superior trial skills and even went so far as to discuss the quality of Ms. Alexander's closing argument with other defense lawyers in chambers. Prior to opening her...