Atty. Catherine Mary Clarkin

Atty. Catherine Mary Clarkin

Catherine Mary Clarkin is a lawyer practicing securities & investment fraud, commodities, futures & derivatives, financial services and 4 other areas of law. Catherine received a B.A. degree from American University in 1992, and has been licensed for 30 years.

New York New York 30 yrs experience 30 year
Call (917) 814-2413 Book Appointment

Profile Summary

About Catherine Mary Clarkin at a glance

Catherine Mary Clarkin is a Partner based in New York, New York, practicing at Sullivan And Cromwell Llp. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on business, securities, and consumer. Admitted to practice in New York (1996). Educated at Catholic University of America Columbus School of Law (J.D., 1995) and American University (B.A., 1992). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Catherine Mary Clarkin is a lawyer practicing securities & investment fraud, commodities, futures & derivatives, financial services and 4 other areas of law
  • Catherine received a B.A. degree from American University in 1992, and has been licensed for 30 years
  • Catherine practices at Sullivan & Cromwell LLP in New York, NY

Practice Areas Explained

Catherine Mary Clarkin's Areas of Practice

Each practice area below reflects the types of cases Catherine Mary Clarkin handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Catherine Mary Clarkin is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Securities Law

Catherine Mary Clarkin is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in New York →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Catherine Mary Clarkin is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about Catherine Mary Clarkin

Where is Catherine Mary Clarkin's law office located?
Catherine Mary Clarkin's law practice is located in New York, New York. The firm is Sullivan And Cromwell Llp. You can contact the office directly through this profile page.
What practice areas does Catherine Mary Clarkin handle?
Catherine Mary Clarkin focuses on business, securities, consumer. Each practice area listed reflects experience handling cases of that type in New York.
How long has Catherine Mary Clarkin practiced law?
Catherine Mary Clarkin has 30+ years of legal experience and has been licensed since 1996.
Where did Catherine Mary Clarkin go to law school?
Catherine Mary Clarkin earned their education at (J.D., 1995); (B.A., 1992).
How can I contact Catherine Mary Clarkin for a consultation?
You can contact Catherine Mary Clarkin directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Catholic University of America Columbus School of Law
- 1995
B.A.
American University
- 1992

Bar Admissions

New York
Admitted: 1996

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