Law Office of Mark J. Keller

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

Estate planning attorney Personal injury attorney

Client Reviews

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.