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Colin Daniel O'Sullivan

Sex crime Attorney at Phoenix, AZ

5.0   30 reviews

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About Colin

Learn Colin’s areas of practice.

Colin D. O’Sullivan is an Arizona native with deep roots in the legal community. He earned his Bachelor of Business Administration Degree in Business Administration and Marketing from the University of San Diego where he graduated Cum Laude. Following his undergraduate education, Mr. O’Sullivan received his Juris Doctor from the University of Arizona, James E. Rogers College of Law. While in law school, Colin took advantage of the February Bar Examination and took the bar exam early during his third year of law school. Mr. O’Sullivan graduated law school having already passed the bar exam which allowed him to begin practicing law immediately.

Mr. O’Sullivan worked for the Maricopa County Public Defender’s office for four years. Mr. O’Sullivan has extensive criminal defense experience having represented clients in thousands of felony matters and has handled all types of cases ranging from homicides to misdemeanors. He has extensive experience handling trials, evidentiary hearings, plea negotiations, oral arguments, and jury selection; conducting discovery analysis, legal research, investigation, and witness interviews; and writing motions and other legal pleadings.

As a trial attorney, Mr. O’Sullivan has tried felony jury trials ranging from 2nd Degree Murder and Sex Conduct With a Minor down to Robbery and Possession of Marijuana. He has received numerous favorable jury trial verdicts including obtaining not guilty verdicts on Aggravated Assault with a Deadly Weapon on Police Officers, Possession of Meth for Sale, Aggravated Assault with a Deadly Weapon, Aggravated Assault, Kidnapping, Theft of Means of Transportation, Unlawful Use of Means of Tranportation, Burglary, Robbery and Possession of Marijuana. Mr. O’Sullivan’s oral advocacy and courtroom experience allows him to persuasively and passionately represent his clients.

Colin D. O’Sullivan is a member of the Arizona State Bar and is licensed to practice law in Arizona and the United States District Court of Arizona.

Photos and videos

Licensed for 7 years
State AZ
Status Active
Acquired 2015
Updated 12/21/2022

We have not found any instances of professional misconduct for this lawyer.

Contact Colin

Colin O'Sullivan
2929 E. Camelback Rd., Ste. 224
Phoenix, AZ, 85016

Reviews

5.0 / 5.0
  30 customer reviews
5 Star
 
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Posted by Jennifer | December 7, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Fantastic!
Colin was an angel during a very difficult time for our family, He was very responsive and understanding and always wanted to make sure we understood everything. He never made us feel ashamed or embarrassed. I am extremely grateful to Colin for getting us the best possible result for our family. Highly recommend his services. Thank you Colin!
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Posted by Patrick | October 27, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Incredible attorney
Colin O’Sullivan was incredible, professional and beyond courteous. I especially appreciated the frequency of communication and care for my case. Colin definitely deserves recognition for his expertise and professionalism. Thank you Colin, you are simply the best at what you do. I would recommend Colin to anyone seeking legal representation without hesitation.
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Posted by Amanda | September 11, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Fully had my back.
From the beginning Colin listened to me and defended me with the most genuine concern and effort. I felt fully supported and grateful that he was fighting for my best interests. He’s great with communication and was always easy to reach. He’s super smart and I would hire him again without question.
Posted by anonymous | September 8, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Representation
I received the help in the service that I would have expected just as you guys advertise he was prompt he was up front he gave me what I needed and the results turned out exactly as I was hoping for thank you again and I would definitely refer you guys out.
Posted by KB | August 8, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Life Saver!
Colin O’Sullivan was assigned my case due to his expertise. Colin worked hard for me and my family and put in the time and effort to achieve a great outcome; way better than we could have ever expected! Thank you for saving my nursing license and my career! 4 felonies reduced to 3 misdemeanors. THANK YOU!!!
Posted by Nick | July 21, 2022
This review is from a person who hired this attorney.
| Hired Attorney
The fighting Irish
Colin was very straight up with me about the process I was about to go through. He went in fighting on my behalf against the state prosecutor. I was being faced with bogus felony assault charges that would have landed me in prison. He was very professional, knowledgeable, and shows confidence in his strategies! I would definitely recommend his services if you ever find yourself in a bind. Colin, My family and I thank you!
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Posted by Deb | July 10, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Best attorney in town!
I cannot thank Colin enough for the great result he was able to achieve on my case. He has amazing courtroom presence and I could tell the judge and prosecutor had the utmost respect for him. I highly recommend Colin for anyone needing legal services as he truly is the best attorney in town!
Posted by Casey | July 1, 2022
This review is from a person who hired this attorney.
| Hired Attorney
My criminal defense attorney
Mr O’Sullivan was extremely professional and diligent he always got back to my calls and answered any questions or concerns I had throughout the process I’d recommend him to anyone and I certainly use his services again
Posted by Salvador | June 21, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Colin's review
Colin was thorough, very professional, explained my case and possibilities. His cross examination skills are to be admired as well as his court preparation. He was caring and friendly! My brothers, sisters and mother (who were court) think the world of Colin, as do I!
Posted by anonymous | May 27, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Phenomenal Attorney
I had the luxury of working with Colin as my attorney for a short amount of time. Throughout the entire process Colin was a very effective and detailed with his communication. He proactively reached out to me to provide updates within a timely manner and was extremely responsive when I reached out to him with a question. He always responded within a couple of hours and worst case within the same business day. He was very knowledgeable throughout the entire process and truly was passionate when it came to helping me out of my situation. The case ended within terms better than I had expected!
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Posted by Christen | April 13, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Colin O’Sullivan diligently advocated for my son, was attentive, prompt and effective.
Colin O'Sullivan diligently advocated for my son, was attentive, prompt and effective as his criminal defense attorney. On one matter he got him completely exonerated with charges dropped, and on another matter he negotiated a plea deal to protect him from an emotionally charged case with stacked evidence that could have resulted in long term multi-decade sentence if taken to trial. Colin is understanding, respectful and honorable protecting not only my son's rights but also cares and does his best to make a positive difference. He also successfully worked to get my son concurrent sentencing limiting the time he will serve. The bottom line is that I am thankful to Colin O'Sullivan for the work he did and protection of my son's rights. There is a saying that people don't care how much you know until they know how much you care. Colin both cares and has an exceptional knowledge of criminal law and defense, and we would retain him and his firm again if needed. Christen
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Posted by Fali | March 30, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Criminal case
Quick thinking, careful and thoughtful analysis. Able to analyze the case in detail. Strong affinity to strive for the greatest rights and interests for customers.
Posted by anonymous | March 30, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Attorney
Colin was a great advocate for us during our situation. He helped us to remain calm, explained things in a way we could understand, and spoke up for us in court. We were able to leave with a positive outcome due to his expertise and client advocacy. Colin treated my family with respect and dignity despite allegations. We would definitely recommend Colin for anyone facing a hard situation.
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Posted by James | March 28, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Takes care of Bud and clients with care and concerns
Collin is very well educated and knowledgeable attorney. Collin knows the in and outs if the league system and he was prepared better than expected . He communicates and takes the best interest of his clients. If you want a great representation, and the best chance to get issues resolved and stay on it if jail gets is the man , and the one you need on your side . Thanks Suzuki Law and Collin OSulivin.
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Posted by anonymous | October 1, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Great attorney! Effective, Hard-working, and results driven.
Colin was one of the friendliest attorneys that we met with before deciding which attorney to choose for our case. We debated picking one that seemed meaner who promised better results. In the end, Colin achieved great results (better than anyone suggested we could get) and was pleasant to work with during this stressful situation. He was efficient, honest and non-judgmental. I highly recommend him as an attorney.
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Posted by Monte | September 8, 2021
This review is from a person who hired this attorney.
| Hired Attorney
review for services provided
Mr. O'Sullivan did an excellent job in representing me. He was always willing to keep me updated on the status of my case. He was very prompt in answering my questions and giving advice as to what would be best to do. His ability to negotiate with the prosecution gave me a very favorable outcome to my case. He was very prompt in answering my inquires whether by text or phone call,or meeting in the office. Excellent Attorney.
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Posted by Ash | September 2, 2021
This review is from a person who hired this attorney.
| Hired Attorney
So Grateful!!
I had randomly found Suzuki Law Offices on Google. I couldn’t be more grateful for my choice!! I was terrified and nervous about what my future would look like. From our initial meeting together, Colin put me at ease, heard my story, and made me feel like a human. I was facing several felony charges from 2018. In the end, I was given probation, community service, and 0 restitution. I feel like I have my life back and I can finally breathe a little easier. I will FOREVER recommend Colin and Suzuki Law Offices. Thank you from the bottom of my heart for fighting for me and being an advocate! Truly the very best!!!
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Posted by Jack | August 31, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Lawyer
Colin kept me updated with my case at all times and was very easy to communicate with. He listened to all my concerns and worked to get the best deal for me. I always felt comfortable reaching out to him to ask any questions I had. He conducts himself very professionally.
Posted by anonymous | August 19, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Great Defense Attorney
Colin was very professional and did everything he could to make sure we got the outcome we wanted. He was consistent with updates about the case and answered any questions I had. I appreciate his hard work throughout all of it.
Posted by Kyle | July 28, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Absolutely the best!
If you're reading this, STOP. Just move forward with Colin. I promise, he is the best you will find. We didn't have the chance to do a ton of research before hiring him, but we are so grateful we found him and were able to work with him. Colin knows his stuff. He's direct, honest, and makes you feel like he has your best interest in mind... because he does.
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Cost

Rates
  • Free Consultation 60 minutes
Payment methods
Cash, Check, Credit Card

Resume

AVVO RATING 8.0 (Excellent)

Work Experience

  • Supervising Attorney
  • Suzuki Law Offices
  • 2021 - Present
  • Attorney
  • Suzuki Law Offices
  • 2019 - 2021
  • Trial Attorney
  • Maricopa County Public Defender's Office
  • 2015 - 2019

Education

  • U of Arizona
  • JD - Juris Doctor
  • 2015
  • University of San Diego
  • BBA - Bachelor of Business Administration
  • 2011

Legal Cases

  • State vs. Yu CR202001025
  • Not Guilty
  • State vs. Spinka CR2017-116084-001
  • Not Guilty
  • State vs. Herold CR2016-005294
  • Not Guilty
View all legal cases

Associations

  • American Institute of Trial Lawyers
  • Member
  • 2022 - Present
  • National Trial Lawyers Association
  • Member
  • 2021 - Present
  • State Bar of Arizona
  • Member
  • 2015 - Present

Languages Spoken

  • English

Awards

  • Litigator Of The Year
  • American Institute of Trial Lawyers
  • 2022
  • Client's Choice
  • Avvo
  • 2022
  • Client's Choice
  • Avvo
  • 2021
  • Top 40 Under 40
  • National Trial Lawyers Association
  • 2021
View all awards

Speaking Engagements

  • Maricopa County Public Defender's Office New Attorney Training
  • Advanced Trial Skills
  • 2018
  • Maricopa County Public Defender's Office New Attorney Training
  • Trial Skills
  • 2017

Attorney endorsements

Received (3)
Given (3)
Endorse Colin
Criminal defense Attorney | Apr 15
Relationship: Fellow lawyer in community
"Danny and I worked together at our previous firm. I observed Danny fight for his clients and not back down from prosecutors. He isn't afraid to advocate for his client in the courtroom and always has their best interests in mind. He can articulate the strengths and weaknesses of your case and won't sugar coat his advice. I endorse Danny for anyone looking for a criminal defense attorney that knows what they're doing!"
Criminal defense Attorney | Dec 21
Relationship: Worked together on matter
"Danny and I worked together for several years. Danny is a skilled and intelligent lawyer that truly cares about his clients. During my time working with Danny I was able to see first-hand his dedication to his cases and clients. I would highly recommend Danny to anyone looking to hire an attorney."
Criminal defense Attorney | Dec 09
Relationship: Fellow lawyer in community
"Mr. O'Sullivan is a brilliant trial attorney. His knowledge of the law and compassion for clients is evident every time he steps in a courtroom. I fully endorse Mr. O'Sullivan."
Employment and labor
Criminal defense
Criminal defense