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Mark J. Keller




Mark J. Keller graduated from St. John’s University School of Law, earning his Juris Doctor in 1992. Before that, Mark attended the State University of New York, College at Fredonia, graduating with a Bachelor of Science in Business Administration & Finance in 1980. From there, he attended the State University of New York: University at Buffalo, earning a Master’s in Business Administration in 1984.

Attorney Mark J. Keller


Mark J. Keller's practice areas include Social Security Disability, Supplemental Security Income, Guardianship, Personal Injury, and Wills and Estates.

Mark represents clients seeking Social Security Disability and Supplemental Security Income benefits before the Social Security Administration. I represent clients from the initial application through hearings before Administrative Law Judges of the Office of Disability, Adjudication & Review. I will appeal your case before the United States District Courts for the Eastern and Southern Districts of New York. I also handle all aspects of Guardianship cases.

In addition, Mark represents people seriously and permanently injured in personal injury cases arising from automobile, construction, sidewalk, and premises accidents. Other areas of practice include Wills and Estates.

Bar Admissions:

Mark Keller is admitted to practice law in New York State, United States District Courts for the Eastern, Southern, and Northern Districts of New York, and the Supreme Court of the United States. Mark will also appeal your case if your claim for benefits was wrongfully denied.

Judicial Experience:

Small Claims Arbitrator for the Civil Court of the City of New York, Queens County.


Queens County Bar Association, National Organization of Social Security Claimants’ Representatives, and The Brandise Association.

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