New York attorney record
Leo Gilles Sion
Leo Gilles Sion is an attorney registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 1720994, admitted in 1981. 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
45 yrs admitted — more experience than ~100% 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 | Leo Gilles Sion |
|---|---|
| Bar / registration number | 1720994 |
| License status | Active official status of record: “Currently registered” |
| Admission year | 1981 |
| Law school | VIRGINIA |
| Business location | New York, NY |
| Firm | Gilles Sion |
| 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 Leo Gilles Sion a licensed attorney in New York?
Leo Gilles Sion is registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 1720994. The current public license status of record is "Currently registered" as of 2026-06-13.
Has Leo Gilles Sion been disbarred or suspended?
No disbarment or suspension is reflected in Leo Gilles Sion's current public license status of record per the NYS Office of Court Administration (OCA) Attorney Registration Unit.
What is Leo Gilles Sion's bar number?
Leo Gilles Sion's New York bar/registration number is 1720994, 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 Leo Gilles Sion admitted to practice law?
Leo Gilles Sion was admitted in 1981 — about 45 years since admission per the NYS Office of Court Administration (OCA) Attorney Registration Unit. Law school of record: VIRGINIA.
Where is Leo Gilles Sion'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 Gilles Sion for Leo Gilles Sion. Phone and email are not published in the public roster.
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