New York attorney record · Judicial Dept 1
Dalia Osman Blass
Columbia alumna, admitted to the New York bar in 2000, registered office in Washington, DC. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 2000
- Admitted
- 26
- Years in bar
- 3062551
- NY reg #
The record in one line
With 26 years on the register since a 2000 admission, Dalia Osman Blass ranks among the New York bar's most senior active practitioners, longer-tenured than 61% of the currently-active bar.
- 26 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 39%
- by tenure among active NY attorneys
- Law school
- Columbia
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 3062551 with the New York bar authority has long belonged to Dalia Osman Blass, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Sullivan & Cromwell LLP, located in Washington, DC, ZIP 20006. 5 other attorneys share this firm affiliation in the registry. Educational background: COLUMBIA.
State context & due diligence
After 26 years on the register, Dalia Osman Blass still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Dalia Osman Blass's 26 years since admission in 2000. The histogram plots that tenure against every currently-active attorney in the state.
26 years on the New York bar
Years since admission, all currently-active NY attorneys
26 Top 39% higher than 61% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How Dalia compares to fellow Columbia alumni
Among the 2,473 Columbia graduates in the New York register, Dalia Osman Blass is longer-tenured than 47% - a school-cohort view of experience, alongside the statewide one above.
26 years vs. Columbia alumni
Years since admission - 2,473 NY-registered alumni of this school
26 Top 53% higher than 47% of 2,473 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
The 2000 admission class today
Of the 7,585 attorneys admitted to the New York bar in 2000, 63.6% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 3062551
- Year Admitted
- 2000 (26 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Aug 2026
Location & Contact
- Company
- Sullivan & Cromwell LLP
- City
- Washington, DC
- ZIP Code
- 20006
- Phone
- (202) 414-2120
Education
COLUMBIA
Status Distribution Across the New York Bar
Dalia Osman Blass's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Sullivan & Cromwell LLP
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Washington, DC
Compare credentials side-by-side
Compare Dalia Osman Blass with similar attorneys in Washington.
Compare attorneys →Before you rely on this record
Dalia Osman Blass's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Dalia Osman Blass licensed?
Dalia Osman Blass is licensed to practice law in New York.
When was Dalia Osman Blass admitted to the bar?
Dalia Osman Blass's admission to the New York bar dates back to 2000.
Where did Dalia Osman Blass go to law school?
Dalia Osman Blass attended COLUMBIA.
What company does Dalia Osman Blass work for?
Dalia Osman Blass is associated with Sullivan & Cromwell LLP in Washington, DC.
Is Dalia Osman Blass in good standing?
Yes, Dalia Osman Blass holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.