Terrence James O'Sullivan's Reviews

Avvo Review Score

4.8 /5.0

30 Client Reviews

Showing 1 - 5 of 12 reviews | Practice Area Knowledge

Posted by Wally | November 28, 2025 | Hired Attorney | Lawsuits & Disputes

Not impressed.

I hired Mr. O'Sullivan to deal with a restraining order I was seeking in 2020 on an individual who had been harassing me online - cyberstalking. Mr. O'Sullivan showed up to court dressed in a jacket that looked like he'd shopped at Walmart, NO notes and NO questions written down. I actually consid...ered firing him while I was on the stand testifying, his "assistance" was that bad. Perhaps TRO's are not his thing, since so many others here think he's just fine, and I should have hired someone more experienced with this issue. Not impressed. Fortunately, the experience of being in court, and the financial ramifications to this individual of being involved in court in this way, stopped the harassment, so the ultimate goal was achieved.

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Posted by Austin | February 24, 2020 | Hired Attorney | DUI & DWI

Highly recommend! Mr. O’Sullivan

Mr. O’sillivan was very easy to talk to very knowledgeable and professional. He did an outstanding job helping me through a DUI ticket. In just a few days he was able to get my case underway. He explained my part and was very precise on what I had to do. He was able the charges reduced and case r...esolved quickly. Highly recommend him to anyone looking for an attorney .

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Posted by tomas | October 20, 2015 | Hired Attorney | Criminal Defense

very pleased with this attorney

Terrance o'sullivan met all my expectations. He was my attorney for a criminal mischief case.Dont think for a moment , this isn't serious. I was accused of damaging property over a 1000 dollars. This case is a felony. I am pleased with terrance o,Sullivan. He knew what was best for me at all times. I... strongly recommend Mr.o'sullivan for all criminal cases. In a scale 1-10 Mr o' Sullivan and this firm is a 10. Thanks again Terrance! You've brought me back to happiness. It's all over, thanks to you.

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Posted by anonymous | October 01, 2015 | Criminal Defense

Terrence O'Sullivan gets the job done!

I have consulted with Terrence O'Sullivan on numerous occasions for advice on criminal matters. He has always given me the right advice and I know that I can count on him when things don't go my way. Terrence is a man of his word and always gives it to me straight, even when I don't want to hear it.... I appreciate everything that Terrence has done for me over the years and I would recommend that anyone retain him as their lawyer.

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Posted by Ryan | September 01, 2015 | Hired Attorney | Criminal Defense

Great representation

Terrance O'Sullivan represented me on a criminal case and the outcome was everything I could have hoped for. I contacted about a dozen attorneys and Mr. O'Sullivan was the best. He was completely honest and up front about what could happen and how he would go about giving me the best defense possible... . He is always available , always answers calls or texts at all hours. Most important, Mr.O'Sullivan is completely reasonable. Where others would ask for your life savings or your left arm Mr. O'Sullivan chooses not to take advantage. He is an outstanding person and I highly recommend him.

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Terrence James O'Sullivan's Lawyer Endorsements

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Paul Donnelly

Criminal defense lawyer | Dec 12

Relationship: Worked together on matter

"I have been a colleague of Attorney Terrence O'Sullivan for the past 10 years. Mr. O'Sullivan is a truly gifted trial lawyer and tremendous criminal defense attorney. Terrence and I have tried numerous federal and state cases together, and all trials ended with great results. Having worked with Terrence on numerous "battles", I can give a first-hand account of his skills and professionalism. I can attest that Terrence O'Sullivan is a first-rate trial lawyer. He cares deeply about all his clients, and he works tireless to get great results in every case he handles. He is very bright and quickly sizes-up whatever case is before him. For those cases that are resolved by plea bargain, Terrence gets phenomenal results. For those cases that proceed to a jury trial, I have witnessed the tremendous skills Terrence has, and, most importantly, the great results he gets for his clients. He is a top-notch criminal defense and one who "goes to the mat" for everyone he represents."

Jason Downs

Criminal defense lawyer | Jul 28

Relationship: Worked together on matter

"I've had the pleasure of representing co-defendants with Mr. O'Sullivan and can attest to his skill in the courtroom, his dedication to his clients, and his ardent defense against criminal charges. Great guy, great attorney."

Devan Desai

Criminal defense lawyer | Jan 15

Relationship: Co-worker

"Mr. O'Sullivan is a very experienced criminal defense practitioner. He has handled a wide variety of cases. His experience ranges from the smallest of misdemeanors to the most serious of felonies. He is a true trial lawyer, and he is always fighting for his clients and obtaining favorable verdicts at trial. I would recommend Mr. O'Sullivan for your criminal defense needs."

Johnathan Burns

Unknown lawyer | Oct 28

Relationship: Co-worker

"I endorse this lawyer, he taught me what I know about defense work and is a great defender of rights."

Zachary Riback

Criminal defense lawyer | Mar 25

Relationship: Fellow lawyer in community

"Mr. O'Sullivan is a fixture in the courthouse, and a true asset to the profession. I cannot recommend him enough!"

Roberto Pardo

Criminal defense lawyer | Nov 03

Relationship: Worked together on matter

"Go to Lawyer! I had the priviledge of working a difficult case with Terrance. Diligent, prepared and aggressive, he did his client right!! If you are searching for a criminal attorney...go no further..he is the MAN!"

Philip Kim

Criminal defense lawyer | Oct 28

Relationship: Fellow lawyer in community

"I endorse this lawyer. I've known Mr. O'Sullivan for about 10 years. I know him to be a knowledgeable and experienced attorney and wouldn't hesitate to recommend him to anyone."

Michael Mirer

Criminal defense lawyer | Oct 07

Relationship: Fellow lawyer in community

"I have known Terrance for more than a decade. I was an Assistant State Attorney in Miami and he was a Public Defender. I saw Terrance diligently representing his clients and fighting for their rights. In the private sector I have seen the same fight from Terrance. He is a zealous advocate and outstanding criminal defense lawyer. I have no hesitation submitting an endorsement on his behalf."

Jason Weber

Criminal defense lawyer | Oct 01

Relationship: Worked together on matter

"I strongly endorse Mr. O'Sullivan as a criminal lawyer. I have both worked on matters with Mr. O'Sullivan as well as referred him cases. Mr. O'Sullivan has consistently achieve outstanding results for his clients and goes above and beyond to ensure that his clients receive the best possible outcome. Mr. O'Sullivan is diligent, responsive, and thorough in his representation. I will continue referring him cases because I am confident that the clients are in the best possible hands."

Michael Haber

Criminal defense lawyer | Aug 28

Relationship: Fellow lawyer in community

"I've known T.J. O'Sullivan for pretty much his entire career. He is a consummate professional who is thoroughly versed in both the law and procedure. More importantly perhaps is his command of the courtroom and his incredible relationships with court staff and personnel. You can sleep well at night knowing that Mr. O'Sullivan is protecting your interests during the day. I endorse Terrence James O'Sullivan."

Herman Rubio

Criminal defense lawyer | Aug 27

Relationship: Worked together on matter

"I endorse this lawyer. I have had occasion to be associated as co-counsel with Mr O'Sullivan in several cases, both State and Federal. Mr. O'Sullivan is a highly skilled, extremely qualified criminal practitioner who is well respected by the judges, both in Federal and State Courts. Mr. O'Sullivan practices criminal law and enjoys an excellent reputation as well as extreme skills in this area. I would not hesitate for one second to recommend him as a criminal practitioner and If I were unfortunate enough to be charged with a crime, I would not hesitate to engage his services. I have extreme confidence in Mr. O'Sullivan's expertise, skill and ability in the criminal area, not by hearsay, but by direct observation of his outstanding talents in the courtroom."

Julian Stroleny

Criminal defense lawyer | Mar 26

Relationship: Fellow lawyer in community

"Terrance is a well respected criminal defense attorney with a reputation for successfully defending his clients in both state and federal court. I frequently consult with him on complex issues and I highly recommend him."

Sasha Berdeguer

Federal crime lawyer | Jan 30

Relationship: Worked together on matter

"I endorse this lawyer. Terrence and I have been co-counsel on several criminal matters and it is always a pleasure to work with him. His years of courtroom experience in both state and federal court make for one tenacious trial attorney. I wouldn't hesitate to recommend him to anyone in need of a criminal defense trial lawyer."

Wayne Atkins

Unknown lawyer | Dec 12

Relationship: Fellow lawyer in community

"Terrence is awesome! He has a vast wealth of knowledge regarding the procedural and substantive principles relevant to criminal defense, and has a natural comfort level when it comes to arguing in court. I highly recommend him."

Isadora Velazquez-Rivas

Criminal defense lawyer | Dec 10

Relationship: Worked together on matter

"Mr. O'Sullivan is very professional, capable, and intelligent. He embraces all his projects with sincerity and skill. Terrence is a strong advocate for each case he takes on and I wholeheartedly endorse him."

Christopher Pagan

Criminal defense lawyer | Dec 10

Relationship: Fellow lawyer in community

"I had the unique opportunity to work with Mr. O'Sullivan as opposing counsel and also as a fellow criminal defense attorney. He works very hard on his client's behalf and has the utmost integrity when he works with opposing counsel. He knows the law very well and always advises his clients accordingly."

Marcia Hansen

Criminal defense lawyer | Dec 09

Relationship: Fellow lawyer in community

"I have known Terrence O'Sullivan for almost fifteen years now. A peer in law school and a colleague at the Public Defender's office, I have seen Terrence grow into a truly dedicated, astute, professional and aggressive defense lawyer. I can say this in all honesty because I actually tried his first case with him. I do not hesitate to refer clients to Terrence or ask him to co-counsel matters with me because I know the clients will be getting top service from a top attorney."

Karyn Todd

Criminal defense lawyer | Sep 16

Relationship: Worked together on matter

"I endorse this lawyer. I referred a client to Terrence and got the job done at an affordable fee! client was very happy that he quickly resolved the case and kept client up to date as to progress! go see Terrence"

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