Rosenthal & Wadas, PLLC

Experienced \ Successful \ Aggressive Collin County Criminal Defense

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Firm Overview

Collin County Criminal Defense Attorney

As experienced Collin County Criminal Lawyers, we are prepared to fight the prosecution and law enforcement in your case. We believe in aggressive criminal defense and there

Main Office

4500 Eldorado Pkwy
Ste 3000
McKinney  TX  75070

  • (972) 369-0577

Jeremy Rosenthal

I am a criminal defense attorney in Collin County and Dallas Metroplex area.  I practice primarily in Collin and Dallas counties, representing the residents of McKinney, Allen, Plano, Frisco, Richardson, Dallas and the surrounding communities.  I am a former Collin County prosecutor.  I am licensed to practice in state courts and in the Federal District Courts for the Northern and Eastern Districts of Texas.

My Credentials

After Graduating from SMU’s Dedman School of Law in 2000, I worked for lawyers in big and small firms.  I came to the Collin County District Attorney’s Office where I was promoted to Chief Prosecutor over-seeing a County Court at Law.  There I handled countless DW I cases, drug cases, theft cases, and assault cases just to name a few.  I am a member of the Collin County Criminal Defense Lawyers Association, Collin County Bar Association, and Plano Bar Association.  I am a founding partner of Nolte, Drain & Rosenthal, PLLC where I am currently the managing partner.

  • SMU's Dedman School of Law
    JD , 2000

Derk Wadas


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 amBoard 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 including the National College for DUI Defense, and the Texas 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

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.

  • Embry Riddle Aeronautical University
    Bachelor of Arts (B.A.) , 1997
    Prescott, AZ
  • St. Mary's University School of Law
    Juris Doctor (J.D.) , 2000
    San Antonio, TX

Kyle Therrian

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. If you have a criminal or family law matter in Collin County or the Dallas Metroplex, call our office at:   (972) 369-0577 and schedule a free consultation with Kyle Therrian.

  • University of North Texas
    Bachelor of Arts (B.A.) , 2007
    Denton, TX
  • University of Oklahoma College of Law
    Juris Doctor (J.D.) , 2010
    Norman, OK

Articles Written

Using a Lawyer to Assist with a Texas DWI Charge

Created On: 07/07/2010

When someone has been arrested drunk driving, he/she really ought to find the assistance of a legal professional right away. A person charged with drunk driving may have as little as fifteen days...

Understanding Texas Law Relating To DWI

Created On: 06/08/2010

Certainly one of the first things you will certainly notice about these laws is that they have a minimum term of confinement. When you're convicted under the typical driving while intoxicated...