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Law Office of Mark J. Keller

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Jamaica, New York
Estate planning attorney
4.9 - 67 Reviews

Contact Information

About the Attorney

The Law Office of Mark J. Keller is a reputable firm based in Jamaica, New York, specializing in various areas of law. Mark J. Keller is a seasoned attorney with expertise in estate planning, personal injury cases, and social security matters. As an estate planning attorney, Mark helps clients navigate the complexities of wills, trusts, and probate to ensure their assets are protected and distributed according to their wishes. In personal injury cases, he fights tirelessly to secure compensation for those who have been wrongfully injured due to the negligence of others. Additionally, as a social security attorney, Mark assists individuals in obtaining the benefits they are entitled to through the Social Security Administration. With a strong track record of success and a commitment to providing personalized legal solutions, the Law Office of Mark J. Keller is dedicated to advocating for the rights of clients in Jamaica, New York, and beyond.

Practice Areas

Client Reviews

Patricia Grant Avatar
Patricia Grant
8/03/2026
I highly recommend the law office of mark keller great staff Mr keller did my disability case for me and everything went so well that im very surprised my case was wrapped up in such a short space of time ,everything went through so fast, the communication was great ,if I had to do it all over again I would choose Mr keller and his team I highly recommend mark keller to anyone who's looking for a social security disability lawyer ,great team .,very professional and compassionate,friendly always a pleasure to communicate with the team.👍🏾
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N R Avatar
N R
8/01/2026
By far the best attorney in NY in his field! I, had an amazing experience w/Mark and team. From the very beginning, he was compassionate, professional, and incredibly knowledgeable. He, took time to explain every step of the process, answered all of my questions, and made what could have been a very stressful situation an experience much easier to navigate. His dedication, attention to detail, persistence made all the difference in my case. I, truly felt like he cared about my well-being and fought hard to get the best possible outcome for me. If, you want to WIN your case Mark is the one that will get it DONE! I, truly recommend him to anyone looking for an experienced, trustworthy, stellar disability lawyer. He, truly cares! Thank you Mark Keller for your exceptional support and commitment! I’ll, never forget.
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Michael Horowitz Avatar
Michael Horowitz
7/30/2026
Mark guided my case smoothly with the Social Security Administration while providing me with updates and clear instructions as how we will proceed. I could NEVER have done this without his expertise and he lifted what would have been a major burden for me. He is very generous with his time for any questions or concerns.
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Dan Avatar
Dan
6/15/2026
Mark Keller represented me on my disability case. He won all the money I was due. highly recommend him and his team. They stay in touch and let you know what's going on. He has a very good team and very good ethics about them
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Mireya Rueda Avatar
Mireya Rueda
6/05/2026
I cannot recommend Mr. Keller highly enough. Since 2023, he has guided me through every step of the guardianship process for my brother with exceptional professionalism, knowledge, and dedication.
What truly sets him apart is not only his legal expertise but also his genuine compassion and patience. Throughout this journey, I have had countless questions and concerns, and he has always been available to provide guidance, answer my questions, and help me understand the process. Knowing that I could rely on him whenever I needed assistance gave me tremendous peace of mind during what was often a difficult and emotional time.
He is thorough, responsive, professional, and incredibly knowledgeable, but above all, he is a person who genuinely cares about his clients. His commitment and support have gone far beyond what I ever expected from an attorney.
I am more than satisfied with his services—I am deeply grateful for everything he has done for me and my family. If you are looking for an attorney who combines outstanding legal skills with kindness, integrity, and dedication, I wholeheartedly recommend him.
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