Rosenthal & Wadas, PLLC

Rosenthal & Wadas, PLLC

Experienced \ Successful \ Aggressive Collin County Criminal Defense

Firm Overview

Collin County Criminal Defense Attorney

We are the largest criminal defense firm in Collin County and have many resources for the defense of our clients. When you hire Rosenthal & Wadas, you get the advantage of hiring a firm with multiple attorneys who collaborate to create a defense strategy for your case.

We are the largest criminal defense firm in Collin County and have many resources for the defense of our clients. When you hire Rosenthal & Wadas, you get the advantage of hiring a firm with multiple attorneys who collaborate to create a defense strategy for your case.

We specialize in the following practice areas:
-Assault/Family Violence
-Attorney Writ Bonds
-Child Injury
-Clearing Criminal Records
-Drug Offenses
-DWI Defense
-Federal Drug Conspiracies
-Federal Firearm Violations
-Juvenile Laws
-Marijuana Possession
-Non Disclosures
-Other Offenses
-Probation Violation
-Sex Crimes
-White Collar Crime

CALL 24/7 TOLL FREE AT 877-538-8640.

Main Office

4500 Eldorado Pkwy
Ste 3000
McKinney, TX 75070


(972) 200-9489

Jeremy Rosenthal, Founding Partner

Rosenthal & Wadas, PLLC

Jeremy Rosenthal is a founding partner of Rosenthal & Wadas, PLLC and was previously a partner in the McKinney law firm Nolte, Drain & Rosenthal, PLLC. He is Board Certified by the Texas Board of Legal Specialization in Criminal Law.

Jeremy is an experienced attorney who has tried over 100 jury cases ranging from criminal defense, criminal prosecution and civil litigation. He has received Not Guilty verdicts at every level of State Court.

He is licensed to practice in state courts and in the Federal District Courts for the Northern and Eastern Districts of Texas.

10.0 AVVO Rating, The National Top 100 Trial Lawyers

Derk Wadas, Founding Partner

Rosenthal & Wadas, PLLC

My name is Derk Wadas, I am an attorney with a practice dedicated solely to providing representation in criminal cases in all Texas state courts and in Federal court. I am Board Certified in Criminal Law by the Texas Board of Legal Specialization.

I am a former Collin County prosecutor and practicing criminal attorney since 1998. During my years as a criminal prosecutor I tried over seventy cases to a jury and spent my career in the courtroom. I have the skills, experience and commitment to represent you in any type of crime.

It is important to me to stay abreast of changes in the law, and continually strive to deliver superior representation to clients. For those reasons, I am a member of organizations includingthe National College for DUI Defense, and theTexas Criminal Defense Lawyers Association.

Further, I have completed the Standardized Field Sobriety Testing Practitioner course and am a certified practitioner. I have the same level of training in field sobriety testing as the police who investigate Driving While Intoxicated cases.

Bo Kalabus, Jr., Associate

Rosenthal & Wadas, PLLC

Bo Kalabus began his legal career as a civil litigator and specialized in defending personal injury cases. Along the way, he successfully represented several Fortune 500 companies in several different litigation areas including product liability, premises liability, and toxic tort cases. Bo also served as national counsel for several clients where he planned litigation strategies and supervised all aspects of trial preparation for numerous cases throughout the county. After several years in civil practice, Bo turned his focus to starting his own law firm and developing a criminal defense practice to complement his experience on the civil docket. On September 4, 2010 the Kalabus Law Firm was proud to announce its affiliation with Rosenthal & Wadas L.L.P., a firm strongly rooted in the practice of criminal defense. Since that time, Bo has been able to bring positive results to clients in many arenas involving criminal defense from jury trials, to ALR hearings, and to the appellate level. As your lawyer, Bo brings his experience as a litigator and his "Big Firm" attention to detail.

Kyle Therrian, Associate

Rosenthal & Wadas, PLLC

No legal matter is insignificant. Decisions made in a court of law can have far-reaching and potentially irrevocable consequences. When choosing a law firm, you want more than a person who will just appear in court on your behalf, you want to find answers to the questions that matter to you and your family. Kyle Therrian is a diligent, creative, and competent attorney who can provide desirable options in resolving your legal issues. Being well-prepared is the best solution to any problem.


University of Oklahoma College of Law
Juris Doctor (J.D.), 2010

University of North Texas
Bachelor of Arts (B.A.), 2007

Ryan Michael Kreck

Rosenthal & Wadas, PLLC

Concern for people and families propels Ryan Kreck to handle family law cases including family violence, child support, divorce and custody cases. Ryan's practice also has a strong emphasis in criminal defense, where he represents clients in cases ranging from aggravated assault with deadly weapons to allegations of injuries to children. Many times family law cases can get mixed up with criminal law cases and Ryan's knowledge and experience of both areas effectively guide his clients through these difficult issues.

Throughout his career Ryan has been involved with several jury trials involving Child Protective Services (CPS). His experience with CPS investigations enable him to navigate around all the obstacles involved with these types of cases. Ryan Kreck is a skilled and aggressive attorney who can be a shrewd negotiator, a compassionate mediator and an insightful advisor.

Justin Wilson, Associate

Rosenthal & Wadas, PLLC

Justin Wilson served as an Assistant District Attorney in Collin County for three years before joining Rosenthal & Wadas, PLLC. He quickly rose through the ranks to become a chief misdemeanor prosecutor and then a member of the felony trial team. As a former prosecutor, Justin has extensive experience evaluating the strengths and weaknesses of a case, and he uses his insight into the DA's Office to achieve the best possible outcome for his clients. He is able to analyze criminal defense cases from both sides, and figure out how best to fight the state's case.