New York attorney record
Mark Irwin Chass
Mark Irwin Chass is an attorney registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 2439362, admitted in 1991. The current public license status is "Currently registered" as of 2026-06-13.
Active license with no disbarment or suspension of record.
The current license status of record is active, and no disbarment or suspension is reflected in the public record we hold.
A summary of the public record — not a rating of skill, not a recommendation, not legal advice.
Experience vs. active New York attorneys
State median: 20 yrs
35 yrs admitted — more experience than ~78% of active New York attorneys.
Years since admission, active New York attorneys with a published admission year (n = 333,133). This attorney's band is highlighted.
License & registration
| Full name | Mark Irwin Chass |
|---|---|
| Bar / registration number | 2439362 |
| License status | Active official status of record: “Currently registered” |
| Admission year | 1991 |
| Law school | COLUMBIA UNIVERSITY |
| Business location | New York, NY |
| Firm | Herbert Smith Freehills Kramer (us) LLP |
| Discipline standing | No disbarment or suspension is reflected in the current public status. Itemized disciplinary orders are not yet integrated for New York; see the official source for the full record. |
Federal court activity
Federal court activity has not been compiled for this attorney yet.
Source & last updated
Source: NYS Office of Court Administration (OCA) Attorney Registration Unit — official attorney record. As of 2026-06-13 (last roster ingest).
Frequently asked questions
Is Mark Irwin Chass a licensed attorney in New York?
Mark Irwin Chass is registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 2439362. The current public license status of record is "Currently registered" as of 2026-06-13.
Has Mark Irwin Chass been disbarred or suspended?
No disbarment or suspension is reflected in Mark Irwin Chass's current public license status of record per the NYS Office of Court Administration (OCA) Attorney Registration Unit.
What is Mark Irwin Chass's bar number?
Mark Irwin Chass's New York bar/registration number is 2439362, assigned by the NYS Office of Court Administration (OCA) Attorney Registration Unit. A bar number is the most reliable way to confirm you have the right attorney, especially for common names.
When was Mark Irwin Chass admitted to practice law?
Mark Irwin Chass was admitted in 1991 — about 35 years since admission per the NYS Office of Court Administration (OCA) Attorney Registration Unit. Law school of record: COLUMBIA UNIVERSITY.
Where is Mark Irwin Chass's law office?
The NYS Office of Court Administration (OCA) Attorney Registration Unit record lists a business location of New York, NY and the firm Herbert Smith Freehills Kramer (us) LLP for Mark Irwin Chass. Phone and email are not published in the public roster.
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