Collin County Criminal Defense Attorney

When You’re Facing Criminal Charges,
You Need Someone In Your Corner.

I’m Mark O’Bryan. I’ll be straight with you about your case, fight hard for you in court, and handle everything myself — no associates, no handoffs, no surprises.

Get a Free Consultation (972) 372-4054
Exclusively Criminal Defense Since 2013
You Hire Me, I Handle Your Case
Flat Fees — No Billing Surprises

Collin County Criminal Defense — Straight Answers for People Who Need Them Now

If you or someone you love has just been arrested or charged with a crime, your mind is probably racing right now.

  • What is going to happen to me?
  • Will this affect my job or my career?
  • What will my family think?
  • How is this going to impact my future?
  • I’ve never been in trouble before — am I ruined?
  • Can this be fixed, expunged, or undone?

“When you hire me, it becomes my job to worry about all of this — so you don’t have to. I’ll tell you exactly where you stand, walk you through every step of the process, and fight hard to get you the best possible outcome. No sugarcoating. No runaround. Just straight answers.”

— Mark O’Bryan
Mark O'Bryan, Collin County Criminal Defense Attorney

An Attorney Who Tells It to You Straight

I’ve been practicing criminal defense exclusively since 2013. In that time, I’ve represented clients on everything from minor misdemeanors to first-degree felonies carrying the possibility of life in prison. I’ve taken cases to trial, negotiated dismissals, and fought for outcomes that gave people their lives back.

Most people tell me I don’t sound like an attorney. I take that as a compliment. When you’re scared and confused, the last thing you need is someone talking down to you or hiding behind legal jargon. I’ll give it to you straight — the good, the bad, and what we’re going to do about it.

When you hire me, I handle your case. Not an associate. Not a paralegal. Me. You’ll always know who is in your corner.

  • Licensed, Texas State Bar — since 2011
  • Exclusively criminal defense — since 2013
  • Collin County Criminal Defense Lawyers Association member
  • Rated on Google and AVVO

Practice Areas

I represent clients charged with misdemeanors and felonies across Collin County and the Dallas-Fort Worth area. Click any area below to learn about your specific situation.

Assault / Domestic Violence Burglary Computer Crimes Criminal Mischief / Vandalism Criminal Trespass Drug Possession Driving While Intoxicated (DWI) Evading / Resisting Arrest Expunctions / Non-Disclosures Failure to Identify Failure to Pay Toll Forgery / Fraud Occupational Driver License Probation Violations Prostitution / Solicitation Protective Order Violations Public Intoxication Robbery Theft / Shoplifting Weapons Charges

Don’t see your charge listed? Contact me — chances are I can still help.

Simple. Straightforward. No Pressure.

Here’s what happens when you reach out. No obligation, no hard sell — just an honest conversation about your situation.

1

Get in Touch

Text, call, or fill out the contact form with a brief description of your situation. I personally respond to every message — typically within a few hours, the same day.

2

We Talk It Through

We’ll have a brief phone conversation so I can understand your case and answer your initial questions. If it’s a good fit, we’ll schedule a free in-depth consultation — by phone or in person at my Plano office.

3

I Go to Work

Once retained, I take over completely. I handle every court appearance, every negotiation, and every filing — start to finish. You’ll always know exactly where your case stands.

Real Cases. Real Outcomes.

Every case is different. But here are two examples of what thorough preparation and straight-talking advocacy can achieve.

Manufacturing/Delivery of Drugs + Solicitation — Collin County

Facing Life. Walked Away Free.

My client was caught in a Plano police sting and charged with Manufacturing/Delivery of a Controlled Substance (PG1, 4–200 grams) — carrying 5 to 99 years or life in prison — plus Solicitation of Prostitution. After months of showing the DA that my client was a first-time offender, a devoted family man, and a respected business owner, their only offer was 8 years. We said no, and entered an open plea to the Judge.

Outcome Minimum deferred adjudication probation. No conviction. No prison. A chance to rebuild his life.

Past results do not guarantee future outcomes.

Read the full story
Assault Family Violence — Collin County

Not Guilty. Despite DA Going All In.

My client faced Assault Family Violence — a charge that permanently stays on your record in Texas and strips you of your right to own a firearm. The alleged victim fully recanted and the DA still refused to dismiss. My independent investigation uncovered two prior assault convictions belonging to the alleged victim — one with my client as the victim. The DA’s star witness didn’t even show up for trial.

Outcome Not Guilty — jury verdict. Client walked out of the courthouse a free man.

Past results do not guarantee future outcomes.

Read the full story

Results may vary. Every case is unique and past outcomes do not guarantee future results.

Trusted by Real People in Difficult Situations

Google Review
★★★★★
“It was a really smooth and easy experience working with The Law Office of Mark O’ Bryan. I had a domestic violence charge and Mark was able to modify the conditions of my bond and later got the case completely dismissed. I would strongly recommend this attorney!”
Google Review
5-star rating
AVVO Review
★★★★★
“It has been a great experience working with Mark. He was always accessible… very straightforward and took his time explaining any questions… explained worst- and best-case scenarios and kept me updated throughout the process. Ultimately, he was able to get my husband reinstated!”
AVVO Review
5-star rating
Google Review
★★★★★
“Mark was a great lawyer — affordable, honest, trustworthy, and upfront from the start… I was from out of state, never met him before, put my whole life in his hands, and came out with a great outcome… I recommend Mark to anybody.”
Google Review
5-star rating

Read more reviews on Google and AVVO.

Let’s Talk About Your Situation

Fill out the form, or text or call me directly. There’s no obligation and no pressure. I just want to hear what’s going on and let you know if I can help.

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Phone & Text (972) 372-4054 Texts welcome. If I miss your call, leave a voicemail and I’ll call you back the same day.
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Office 6860 N Dallas Pkwy, Suite 200
Plano, TX 75024 By Appointment Only
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Response Time I do my best to respond the same day I personally read and respond to every message.
My Promise to You When you contact me, you hear back from me — not a receptionist, not an assistant. I personally review every message and do my best to respond the same day.

Send Me a Message

Briefly describe your situation and I’ll be in touch shortly.

Submitting this form does not create an attorney-client relationship. Your information is kept strictly confidential.