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Mahon, Mahon, Kerins & O'Brien, LLC
Garden City Personal Injury Lawyer — 19 Client Reviews Analyzed
4.9(19 reviews)Mahon, Mahon, Kerins & O'Brien, LLC is a Personal Injury law firm in Garden City, NY, located at 254 Nassau Blvd and reachable at +1516-538-1111. Clients have rated the firm 4.9 out of 5 across 19 public Google reviews, 10 of which include written feedback. The most recent written review is from J Pass on May 8, 2026 (92 days ago).
What reviewers consistently praise: care for the whole situation, and help during a stressful moment. These themes surfaced across dozens of reviews when CrashStory analyzed sentiment and case-experience dimensions on this firm's Google reviews. Compare these against any other firm you're considering — most attorneys have only two or three themes reviewers consistently return to.
Named attorneys at this firm: James Kerins is the attorney most frequently named by clients in reviews of Mahon, Mahon, Kerins & O'Brien, LLC.
How we compiled this: CrashStory aggregates public Google reviews, Colorado crash records from CDOT and local agencies, and firm-provided profile data. We do not endorse any firm. Review intelligence scores are derived from automated sentiment and theme analysis of public reviews — treat them as one signal among many, not a verdict.
19 reviews
Years Experience
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Consultation
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Mahon, Mahon, Kerins & O'Brien, LLC is a personal injury law firm serving clients in Garden City, New York, located at 254 Nassau Blvd 11530.
Review evidence: Clients have left 19 public Google reviews averaging 4.9 out of 5, 10 of which include written feedback. CrashStory scores 12 client-experience dimensions across this review corpus — compare side-by-side with other Garden City, New York firms before you decide.
Quick signals: attorneys named most often in reviews are James Kerins; the Google Business profile for this firm is verified; 1 photos are public on Google; contact the firm to ask about consultation fees.
Contact Mahon, Mahon, Kerins & O'Brien, LLC at (516) 538-1111 or visit mmkolaw.com for a free case review.
19 public reviews and 14 written reviews.
Most recent written review from J Pass: Sep 18, 2025 (324 days ago)
Compare this recency with the other firms you are considering, not just the star rating.
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There are no visible owner replies in the current review corpus.
Most recent written review from J Pass: Sep 18, 2025 (324 days ago)
CrashStory does not yet have enough structured review evidence on this firm to call out consistent strengths with confidence.
The newest written review in this dataset is from Sep 18, 2025 (324 days ago). Compare that recency with the other firms you are considering.
I hired Joseph Hyland based on a referral and he is nothing short of spectacular. He was all over my case like white on rice and was able to resolve my matter in a very timely fashion. I am extremely pleased with the results of my case and would recommend Joseph to anyone who needs an attorney. Responds in seconds sometimes and always provides helpful and knowledgeable insights. Thank you!!
My Dad, David J. Tubridy, had great success working with the Firm's Founder, John Mahon for my Mom's elder care needs. We had similar success with Atty. James Kerins on my wife's long term care. Highly recommended.
Fabulous attorneys. James and his assistant were extremely helpful and professional. I am very grateful. I would highly recommend them!
254 Nassau Blvd, Garden City, NY 11530
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Most recent written review from J Pass: Sep 18, 2025 (324 days ago)
Written Reviews
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I hired Joseph Hyland based on a referral and he is nothing short of spectacular. He was all over my case like white on rice and was able to resolve my matter in a very timely fashion. I am extremely pleased with the results of my case and would recommend Joseph to anyone who needs an attorney. Responds in seconds sometimes and always provides helpful and knowledgeable insights. Thank you!!
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My Dad, David J. Tubridy, had great success working with the Firm's Founder, John Mahon for my Mom's elder care needs. We had similar success with Atty. James Kerins on my wife's long term care. Highly recommended.
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Fabulous attorneys. James and his assistant were extremely helpful and professional. I am very grateful. I would highly recommend them!
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Outstanding family law. Trustworthy, professional, competent, caring...couldn't be more delighted to share my satisfied experience with the world.
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Handling my mom probate case.
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Rich Kerins and his son James are very very knowledgeable, Professional and always helpful with questions related to the Family Trusts they set up for us back in 2011
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Fantastic Law Firm. Kind, compassionate, competent, and completely thorough!
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We are very grateful for all the help we have received from James Kerins and his firm. At any time we need him, he is always available to help quickly with a high level of professionalism. His sincere concern for protecting our Mother's assets was extraordinary. We would absolutely recommend him and his firm to family and friends,
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Friendly and very helpful...give good advice but keep it simple and affordable. You definitely feel like you are getting personal service
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Greatest bunch of people Dont trust anybody but them
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Covid compliant - the office was so clean - closing went so smoothly - looking forward to the next one!
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Great people
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