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Dallas Criminal Law Firm

Don't Let One Mistake Cost You Everything

We understand this can be a stressful time. That’s why we’ve waived our consultation fee—for a limited time—to help you explore your options at no cost.

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Experienced. Honest. Dedicated.

I’m attorney Mark A. Perez, and with over 35 years of experience in immigration and criminal defense, I know how to protect your rights and get results. At the Law Office of Mark A. Perez, every case is handled with precision, urgency, and a hands-on approach that ensures no detail is missed.

Whether you’re facing a misdemeanor, felony, or immigration issue, my team and I prepare each case as if it’s going to trial—strategically and aggressively. We’re here to guide you through tough legal challenges with the experience and dedication you deserve.

I Am Here to Defend You Against Any Charge

I am ready to apply the comprehensive knowledge I have honed in over 35 years of criminal defense practice to help you arrive at an ideal resolution. As a Dallas criminal defense attorney, I have helped countless clients defend against a wide variety of criminal charges. Contact my law office today if you are accused of any of the following:

Drug crimes, including serious drug charges such as manufacturing, delivery and possession with intent or federal drug conspiracies.
Sex crimes, including Internet sex crimes and sex crimes involving children.
White collar crimes such as mortgage, bank and wire fraud, or health care fraud.
Violent crimes such as assault and aggravated assault.
Theft from small-scale shoplifting to large-scale embezzlement
DUI/DWI, including repeat offenses

I also help individuals facing probation revocation, and I provide representation at parole hearings. If you are struggling to put your past behind you and get a clean start, we can discuss whether you qualify for an expungement or can file a petition for nondisclosure.

My Approach to Criminal Defense

As a criminal defense attorney, it is always my goal to analyze the case and explain how the process will work, from arrest to jury trial or negotiation. I always make it a point to empower clients to make an informed and comfortable decision based on the available facts at hand.

I understand the gravity of these situations if you have been charged. I strongly encourage you to reach out as soon as possible to begin protecting your rights.

Many of my clients who are facing criminal charges also have immigration concerns. Individuals with a green card or work visa may find their status in jeopardy after being charged with a criminal offense. I know how to help.

I have also helped many other individuals in the Dallas/Fort Worth areas with their immigration issues. Whether you need help with a work visa or adjustment of status, or assistance bringing your family to this country, I can help.

Free Consultation

Get real answers to your criminal case from an attorney with over 30 years of experience. Book your free consultation today.

Your Future is on the line. you deserve a lawyer who gets that.

When you’re facing criminal charges, honesty and clarity aren’t optional—they’re essential. My clients trust me because I tell them the truth, not what they want to hear. I don’t make promises I can’t keep, and I don’t waste time. I focus on protecting your rights and getting results.

If your freedom, reputation, or livelihood is at stake, you need someone who knows how to fight smart and fight hard. That’s what I do.

I offer a free consultation so you know exactly what to expect and how I can help. Call my Dallas office at (214) 752-0505 or use the contact form below to get started. Don’t wait.

What Our Clients Are Saying

Mark A. Perez, Attorney at Law

Based on 107 reviews

Coty Coty

El abogado mark Pérez y su asistente Gaby son excelentes en su trabajo y los recomiendo 100%. Si quieren un abogado de confianza que sepa como defender el es el indicado!

Response from the owner:Muchas gracias por su recomendación y por confiar en nuestro equipo. Nos alegra saber que tuvo una experiencia positiva trabajando con el abogado Mark Pérez y con Gaby. Nuestro compromiso es brindar una defensa sólida, honesta y dedicada en cada caso. Sus palabras significan mucho para nosotros. Agradecemos su confianza y estamos siempre a su disposición.

ramiro pineda

really greatful for these guys! i would highly recommend them to everyone , worked out my case amazing and flawlessly. if anyone needs help , these guys will do just that. forever greatful , my experience with them was nothing but the best.

Response from the owner:Hi Ramiro, Thank you so much for your kind words and recommendation. It truly means a lot to know you felt supported and confident throughout your case. We’re grateful you trusted our team to help you through the process, and we’re proud to hear your experience was such a positive one. Wishing you all the best moving forward, and please don’t hesitate to reach out if you ever need anything in the future.

Miguel Segura

Mark A Perez's law firm has consistently demonstrated exceptional professionalism and unwavering support throughout my father's immigration process.

My family and I would like to recognize Adriana, whose dedication and commitment were evident at every stage of the process. From the initial consultation to the bond hearing, she provided outstanding guidance and ensured that each step of the process was handled with care and precision. Her efforts, along with the firm's standard of service, sets the standard for how an immigration practice should operate.

If you have a pending case or require immediate assistance, I strongly encourage you to consider this firm. When they believe in your case, they will work to ensure a positive outcome is reached.

Response from the owner:Hi Miguel, Thank you for taking the time to share your experience. It truly means a great deal to our team to know that you and your family felt supported throughout your father’s immigration process. We are especially grateful for your recognition of Adriana. Her dedication, attention to detail, and commitment to guiding clients through every stage are qualities we value deeply. Immigration matters carry tremendous weight for families, and we do not take that responsibility lightly. We appreciate your trust in our firm and your recommendation. Wishing you and your family continued success and peace moving forward.

Gary Fuentes

Mark is very knowledgeable and great to work with. Highly recommend.

Response from the owner:Hi Gary, Thank you for your kind words and recommendation. We’re glad to hear you had a positive experience working with Mark. His knowledge and commitment to his clients are things we truly value, and your feedback means a lot to our team. We appreciate your trust and are always here if you need anything in the future.

Veronica Barrera

We are truly grateful for the support we received from Mark A. Perez during my husband’s immigration process. We would especially like to recognize Adriana, who was consistently attentive, supportive, and deeply involved in our case from beginning to end.

Although the process was not easy, Adriana’s professionalism, dedication, and clear communication made it feel manageable. Thanks to her hard work, my husband was granted his green card—a truly life-changing result for our family. We highly recommend this firm, and especially Adriana, to anyone seeking immigration assistance. She truly goes above and beyond for her clients.

Response from the owner:Hi Veronica, Thank you so much for taking the time to share this. We’re truly honored that you trusted Mark and our team with such an important part of your family’s journey. We’re especially grateful for your kind words about Adriana. She genuinely cares about her clients, and it means a lot to hear that her communication, dedication, and support helped make a difficult process feel more manageable. Most importantly, congratulations to your husband on receiving his green card. We know how life-changing that moment is, and we’re so happy for your family. Thank you again, Veronica, for your recommendation and for allowing us to be part of this milestone.

Rachel G

“If you need a lawyer, I HIGHLY RECOMMEND! Mark Perez. He will fight for you. My experience with Mr. Perez and his assistant Gabriela has been absolutely excellent! Mr. Perez is extremely honest, knowledgeable, professional, responsive, and explained the process step by step when we first met with him. He was able to get the case dismissed! THANK YOU Mr. Perez and Gabriela I will be forever grateful for your hard work and time and for the outcome!

Response from the owner:Hi Rachel, Thank you so much for sharing such a powerful and heartfelt review. We’re truly grateful for your kind words and for the trust you placed in Mark and Gabriela. Knowing that you felt supported, informed, and confident throughout the process means a great deal to our entire team. Mark’s dedication to fighting for his clients, along with Gabriela’s support and attention to detail, is something they both take great pride in. We’re so glad the outcome brought you relief and peace of mind. Thank you again for your recommendation and for taking the time to share your experience. We wish you all the best moving forward.

Ivonne Olvera

Mark Perez Attorney office have been the best! Always so genuine and helpful with my husband case. Adrian Dunn (Paralegal for Immigration )has been amazing throughout the whole process & They have helped him with his tickets , now they have taken over his immigration process! It’s been a long ride but worth the wait!! He’s been approved for his pardon, we’re almost there! 🙏🙏

Response from the owner:Hi Ivonne, thank you so much for your thoughtful words and for trusting our team through such an important journey. We’re truly honored to have been part of your husband’s case and to see the progress you’ve both made together. Mark and Adrian are thrilled to know their guidance, persistence, and care have made this process easier and worthwhile. We’re so grateful for your trust and the opportunity to continue helping your family every step of the way.

Heriberto Serrano

Excellent lawyer, he got your back, he will fight for you

Response from the owner:Hi Heriberto, thank you for your kind words and for sharing your experience. We’re glad to hear you felt fully supported and confident knowing Mark had your back. Fighting for our clients and protecting their rights is always our top priority. We truly appreciate your trust and recommendation, and we are here if you ever need anything in the future!

Norma Morales

Mark Perez has been a remarkable and professional attorney the staff was very respected and responsive all the time.

Response from the owner:It was a pleasure to work with you, Norma! Knowing that Mark and our team made a positive impact on your experience means a lot to us. We value the trust you placed in us and are glad we could be there to support you every step of the way!

Danae Aguilar

The best lawyer there is. My boyfriend has been fighting a federal case for 4 years now and we were preparing for the worst. Not only was Mark great we were all so shocked as to how great he was at fighting his cases. Instead of serving time he was able to get probation not expecting that at all. So thank you Mark for everything!

Response from the owner:Danae, thank you for sharing your experience! We know how stressful your situation was and it means a lot to hear that Mark’s work made such a difference. We appreciate your kind words and are grateful that we could help you both reach such a positive outcome!

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Get real answers to your immigration case from an attorney with over 30 years of experience. Book your free consultation today.

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