Address

22 Dundee Park Dr, Suite 10

Andover, MA 01810

Get in touch

928-522-4866

matt@triallawyersaz.com

A sticker with a tree and the word mjp on it

|

|

A Dedicated Personal Injury, DUI, and Criminal Defense Attorney in Flagstaff, AZ

Law Office of 

Matthew J. Poirier PLLC

We're Here to Help

A black and white drawing of a scale of justice on a white background.

Criminal Defense

We provide aggressive defense strategies aimed at achieving the best possible outcomes. Our criminal defense practice covers drug charges, theft, assault, and more.

A black and white drawing of a man wearing a hat.

Personal Injury

Representing clients who have been injured in accidents caused by negligence, we focus on helping clients secure fair compensation for their injuries, pain, and suffering.

A black and white drawing of a police car with a light on top.

DUI

Expert legal defense for individuals charged with DUI, we offer strategies to reduce or dismiss charges, working to protect clients' rights and minimize legal penalties.

A black and white drawing of a stick figure with a crown on it.

Vehicle Crashes

We handle all aspects of vehicle accident cases, from car crashes to motorcycle and trucking accidents, ensuring you receive fair compensation for your injuries, medical bills, and lost wages. 

YOUR ATTORNEY

Matthew J. Poirier

With over 15 years of experience practicing law in Arizona, I concentrate on personal injury and criminal defense, providing dedicated legal representation to individuals facing life-changing challenges. As a solo practitioner, I believe in maintaining direct communication with my clients, offering the personal attention they need during stressful times. My commitment is to fight vigorously for their rights, ensuring they receive the justice and compensation they deserve.


If you’ve been injured in an accident or are facing criminal charges, I’m here to stand by your side, guiding you through the legal process with personalized care and determined advocacy. Contact me today for a consultation, and let’s explore how I can help protect your rights and secure the best possible outcome for your case.

About Us

|

Here's what people are saying

Kinsey Kavanagh

I had the opportunity to begin my legal career with Matthew. He was a great mentor! Knowledgeable and communicative. Always willing to answer my questions and provide guidance as I navigate the legal world. He wanted to see his clients were taken care of utilizing a thorough and personable approach with every client! Such a positive experience!

Vanesa De La Luna

I’ve never had any legal issues before and had no idea how to go about my case. Matthew was very responsive and helpful through my process! He really took on the headache for me. I contacted him MONTHS later about my case and he did not forget about me as his client and was quick to help. I Highly highly HIGHLY recommend Matt! Thank you again!

Grant Erickson

Make no mistake, you will be fortunate to have the opportunity to work with and/or be represented by Matthew J. Poirier. From my various memorable experiences working with Matt, I can assure you he is much more than a dependable criminal defense attorney. Although he is an especially wise and experienced attorney, he is above all else a compassionate person. He holds a firm grasp of complex legal concepts and is able to clearly communicate this information to his clients and interns. He has consistently left me feeling impressed and reassured. I am confident your experience working with Matt will feel similar to those of mine.

lauren walsh

Matthew is a phenomenal attorney. It is evident that he cares about his community and for his clients.

Ashton Rains

I had the privilege of witnessing the hard work and dedication Mr. Poirier puts into each case. While he did not represent me, I was able to get a first hand look at his professionalism, integrity, and devotion to providing the best work to each client. You can’t go wrong with him!

Katarina Englund

Matthew is an excellent and reliable attorney. He works very hard to ensure clients get proper representation. He responds quickly and is very organized with his work. I highly recommend him.

Tayla Romero

I had the opportunity to witness Matt in action, and I was thoroughly impressed with his legal expertise and professionalism. Although he did not represent me personally, I observed his work closely and can attest to his remarkable skill and dedication. Matt demonstrated a deep understanding of the law, an ability to think strategically, and an unwavering commitment to his clients. He communicated clearly and effectively, ensuring all parties were well-informed. I would highly recommend Matt to anyone in need of exceptional legal representation.

Zachary Glanzbergh

Speaking from first hand experience, Matt will fight tooth and nail for his clients. His attention to detail and knowledge of Arizona and federal law is unmatched. Matt tells it like it is. If you need legal help, Matt is the person to go to.

D M

Matt dependable on time calls you back excellent service. He’s highly intelligent as an attorney trust his instincts. He’s one of the best lawyers I’ve ever ever ran into or had represent me at any point.

Susan H

Very Impressed with Matthew! Mathew will listen to you and help you expedite the legal process. Can help calm situations and discuss strategies with you. Can write relevant legal documents for you, attend hearings, and appear in court. I will definitely hire Mathew and highly recommend him.

Robert & Elaine Moore

Matt is a great Lawyer..And much more a Friend...Could not ask for a better person to represent me when I was falsely accused of a crime..Thank You Matt

Alan Castillo

Have been with Matthew for more than 10 years, always attentive, and has always explained everything very well to me and given me options. I would definitely recommend Matthew for his services.

Allen Tanner

I recently had the pleasure of working with Matthew J. Poirier, and I couldn’t be more satisfied with the experience. From our first meeting, Matthew was incredibly professional, knowledgeable, and attentive to my needs. He took the time to explain every step of the process and made sure I felt comfortable with all my options. Matthew's expertise truly shone through as he navigated my case with skill and dedication. He was always available to answer my questions and provided timely updates, which made a potentially stressful situation much easier to manage. I highly recommend Matthew J. Poirier to anyone in need of legal assistance. His commitment to his clients and his ability to deliver results are truly commendable. Thank you, Matthew, for your hard work and support!

christian Buck

Extremely helpful for my situation at a reasonable price for someone in college.

Julia Velasco

personally i’m very grateful with Matthew..today i finally got my work permit thanks to him..he’s a very talented man. He’s was very understanding of my financial situation. To me he is a wonderful man to work with, he could be in the middle of something yet still he would find a way to reply back immediately..!! Thank you very much Matt..
View more

Welcome

We Fight For You

With over 15 years of experience, the Law Offices of Matthew J. Poirier is committed to providing personalized, client-focused representation to clients in Arizona. In both English and Spanish, ensuring direct communication with every client, we offer hands-on legal guidance through challenging circumstances. Whether handling vehicle accidents, criminal charges, or other personal injury cases, the firm is dedicated to fighting for justice and securing the best possible outcomes.

By the

numbers

$1M

Awarded in an Insurance Matter

$4.5M

Unpaid Commission / Wages

$5M

Negligence / Wrongful Death

$10M

Product Liability / Wrongful Death

$16M

Negligence / Personal Injury

Share by: