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About Catherine O'Sullivan
Catherine O'Sullivan is an associate attorney at Block O'Toole & Murphy in New York City, where she represents victims of serious personal injury and wrongful death.
Catherine joined Block O'Toole & Murphy in January 2026 after clerking for the Colorado Supreme Court. Before her clerkship, she gained experience in appellate litigation, asbestos cases, and veterans advocacy.
She earned her Juris Doctor from the University of Denver Sturm College of Law in 2024, where her student case comment, "NY State Rifle & Pistol Ass'n v. Bruen: The Supreme Court's Insensitivity to Sensitive Places," was selected for publication in the Denver Law Review (Vol. 101, p. 215). She earned her Bachelor of Arts from Boston College, with a major in Philosophy and a minor in Management and Leadership. Catherine is admitted to practice in Pennsylvania and Colorado.
Proven verdicts and settlements at Block O'Toole & Murphy
These results are credited to Block O'Toole & Murphy. A result appears under an attorney's own name only when a published source names them as counsel on the case.
A Brooklyn jury found the NYC Transit Authority fully at fault after a track crew dropped a railroad tie onto cyclist Robert Liciaga, severing his spine, and returned $110,174,972.38.
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.
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Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.