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Mark J. O'Brien
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Chat withLicenses
Licensed in Massachusetts for 27 years
State: Massachusetts
Acquired: 1998
No misconduct found
Location
Attorney Mark J O'Brien
39 William Ave, Haverhill, MA, 01835-7607
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Mark J. O'Brien's Reviews
Avvo Review Score
2 Client Reviews
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Showing 1 - 2 of 2 reviews
Posted by Bill | May 15, 2026 | Hired Attorney
Hard working Attorney
Attorney O'Brien is a hard working man. He works night and day for his clients. He treats his clients as if they are his own family. I am proud to have Attorney O'Brian in my corner. If you need great representation, he is your Lawyer.
Posted by Loren | May 05, 2026 | Hired Attorney
Knowledgeable attorney
Attorney Mark O’Brien was extremely professional and knowledgeable, and always went the extra mile to support me in my case. His attention to detail and communication regarding the case made all the difference in the world. I highly recommend him to anyone seeking legal assistance.
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