What our clients have to say about our defense services.

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With over two decades of serving clients throughout DuPage County, we've built our reputation one case at a time. Our 5-star reviews reflect our commitment to providing exceptional criminal defense representation when it matters most.

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Read what real clients have to say about their experience with McMahon Law Offices and see why so many people trust us during life's most challenging moments.‍

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Call us now at 630.953.4400 for a free, confidential consultation.

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"I was freaking out after getting pulled over coming home from my buddy's wedding. Never been in trouble before and had no clue what to do. Mike broke everything down in simple terms and spotted problems with how the cop did my field test. Thanks to him, my charges got knocked down big time. Still have my license and my job. Mike's the real deal!"

"When I said no to the breathalyzer, I didn't realize I'd lose my license for a whole year. Mike explained everything without the legal mumbo-jumbo and fought hard for me. He actually found mistakes in the police paperwork and my case got thrown out! If you refused a test like I did, Mike knows exactly how to handle it."

"As a truck driver, I would've lost everything with a DUI on my record. Mike got that right away and came up with a game plan just for my CDL situation. He challenged why I was even pulled over in the first place and got the key evidence tossed out. Saved my whole career. Any professional driver needs this guy in their corner!"

"I thought I could save money and handle my DUI myself. Big mistake! After my first court date, I realized I was totally lost. Called Mike and even though I'd already messed up some things, he turned it all around. Ended up with supervision instead of a conviction. Worth every penny I paid him."

"Getting my second DUI was scary - I knew the penalties would be much worse this time. Mike didn't look down on me or lecture me - he just got straight to work. He dug into my case and found out the breathalyzer hadn't been checked in ages. His tech knowledge seriously paid off, and things turned out way better than I expected."

"After getting pulled over at a late-night checkpoint in DuPage County, I was facing my first DUI and totally lost. Mike was recommended by a coworker, and he was incredible from day one. He found problems with how the field sobriety test was done and got the results thrown out. Mike was upfront about costs, answered all my texts quickly, and made the whole process way less scary. Thanks to him, I'm still driving and don't have a criminal record!"

"As a college student, I couldn't believe how much trouble I was in after my DUI. My parents were freaking out, and so was I. Mike explained everything in simple terms and didn't make me feel judged. He found issues with the traffic stop procedure and fought to get my case reduced to reckless driving. His fees were actually reasonable, and he worked out a payment plan that helped my family a lot. If you're young and made a mistake like I did, Mike's definitely the attorney you want."

"I talked to like five lawyers before picking Mike. What I liked was how straight-up he was - no empty promises, just told me where I stood and how we'd tackle it. He was super easy to reach whenever I had questions and always kept me in the loop. His experience with DuPage County courts really made a difference in my case."

"Got arrested for a DUI on my way home from a company happy hour. Worst night ever! My buddy recommended Mike, and man, am I glad he did. Mike noticed the police never read me my rights properly and used that to get my case totally dismissed. He knows all the ins and outs of Illinois DUI law and doesn't miss a thing. If you're in trouble like I was, don't hesitate to call him."

"As a nurse, I couldn't afford a DUI on my record. I was so stressed I could barely sleep. From our first meeting, Mike put me at ease and laid out a clear plan. He challenged the traffic stop that led to my arrest and found inconsistencies in the officer's report. Because of Mike's thorough approach, I kept my nursing license and avoided the worst penalties. He literally saved my career!"

Michael McMahon's legal expertise and talent is definitive. He will accomplish the best results in regards to the most complicated cases. I was extremely pleased with his representation. I highly recommend him!

Mike McMahon is a exceptional Attorney, very professional and reliable. Answered all my questions, I was at a low-point in my life over my case ,thought all was lost, he told me not to worry that he would handle my DUI and he did. I highly recommend him.

Michael McMahon is the best criminal defense lawyer you can hire in IL/Chicago area. He can deliver unbelievable outcome, beyond what you can expect! I highly recommend him, and well deserved to get 5 star rating! He knows how to get the case dismissed, if not he is very capable of getting you the best outcome possible. He was a prosecutor and he knows how to deal with the pressure tactics from other prosecutors and I was amazed by his assurance, asked me to have patience and I followed his advise and he attained more than what he promised to me! He is indeed a busy lawyer, so you have to work with him patiently to get the best result, not a good idea to hurry up, if he advised you to be patient and delays things for good! Please follow his guidance and advise, I can assure you, he will get you the best possible result. 👌👌👌

Mike is professional and personable. He has beat or helped me get the best sentencing for any case I have hired him for. I have two cases dismissed and a felony that got knocked down to a misdemeanor solely because of Mike. His receptionist/assistant is extremely kind and responds timely. I would feel confident referring McMahon law offices to anyone for any case.

This man is razor sharp and will get you the best possible results. Mike McMahon is single handedly the best defense attorney in IL. I had multiple concurrent charges 2 in the infamous dupage and 1 in cook county....just when I thought I was headed for the jail cell....he managed to pull off one the best defenses I've ever seen. He saved me and my family from destruction. I cannot thank him enough. If you want an attorney that will TRULY WORK FOR YOU. MIKE MCMAHON IS YOUR BEST CHOICE.

Mr. McMahon deserves more than 5 stars! He is the most kind, professional and efficient lawyer that I have ever met. He handles things in a timely manner and gets the best results possible. There's been a few times in my life where I needed a good lawyer and he was there when I called. I will forever keep his contact in my phone just in case, but hopefully I won't need it! I would definitely recommend Mr. McMahon to everyone, having a well respected and smart lawyer is one of the most important things when dealing with legal issues. I'm so glad he represented me in court and I am forever grateful for all he's done.T hank you Mr. McMahon! 🙏

"Michael McMahon is a phenomenal attorney whose confidence and seasoned ability puts you immediately at ease. This is a guy who is the best of the best. He will work to make sure whatever legal incident one has been faced with, that you will have his focused professional legal strategy to find a solution. He is highly skilled, super intelligent, and very adept at his speciality: Defending wrongly accused, or the accused. His confidence in his ability is something that once witnessed in front of a judge, you do not forget. He truly cares. He will work tirelessly to help his clients."

"My traffic violation turned out to be much more serious than I thought—I was up against a pretty heavy fine and worse, a suspended driver's license. Mike McMahon was recommended by a friend and he and his staff immediately put me at ease. As a result of his expertise, the charges were dropped and a great weight was lifted from me. Highly recommended, thanks again!"

"We received excellent service and care from Mike and his team. We are grateful for the extra assistance and for the results we had hoped to get. We highly recommend this firm."

"Absolutely fantastic services and pricing! Mike and Jessica were absolutely amazing people to work with and helped me with two pretty bad traffic tickets. Thank you so much 10/10 recommend!"

Mr. McMahon is probably the best DUI attorney in the state of Illinois. He not only has your best"

"Mike is not only knowledgeable and professional but also deeply committed to his clients success. If you need an attorney who truly advocates for you, look no further!"

"Absolutely best human lawyer on the planet. Michael is an incredible lawyer and kind person. Loved working with him, made the process so simple!"

"Highly highly recommend Mike! I can't even begin to explain how he has saved us on several occasions with small and very very large issues. We have had some bad luck but he amazes me every time with the BEST outcomes."

"If you want the best criminal defense attorney in the state... Look no further than the law offices Michael McMahon. He has represented me and my family in several cases throughout the 10 years I've known him. Top Tier Lawyer... don't waste your time or money with anyone else... secure the best!! Mike and his team are #1!!"

"Mike did a fantastic job with my son's case! This was a very unusual unique & complicated case. He knew all the right people to get ahold of on both sides he worked out a fair case. I’m very appreciative for his fast action on such a ..."

"Mike is awesome, worked overtime to help me through the process and an unexpected surprise outcome. He's more than a lawyer, he's a friend for life."

"Mr McMahon did everything I needed and got me the least amount of consequences for my actions, and at a great price, I recommend him highly."

"Mike is an excellent attorney he did everything in his power to help me I am grateful for his help"

"I hired Mr. McMahon for a misdemeanor speeding ticket and he was able to save my driving privileges. I would recommend him to anyone."

"Michael McMahon was professional and exceptionally knowledgeable. I highly recommend this firm!"

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Contact our DuPage County Criminal defense attorneys

When facing DUI charges in DuPage County, time is of the essence. Early legal intervention can make a crucial difference in the outcome of your case.

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‍Call: (630) 953-4400‍

Email: info@mcmahonlegal.net‍

Visit: 2150 McDonald Drive, Oak Brook, IL 60523

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Available 24/7 for emergency DUI arrest assistance.

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‍Don't face criminal charges alone. Our experienced DuPage County criminal defense attorneys are ready to fight for your rights, your reputation, and your future.