New York attorney record · Judicial Dept 3
Jonathan Francis Xavier O'Brien
Tulane Law School alumna, admitted to the New York bar in 2000, registered office in Boston, MA. 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
- 3036571
- NY reg #
The record in one line
With 26 years on the register since a 2000 admission, Jonathan Francis Xavier O'Brien ranks among the New York bar's most senior active practitioners, longer-tenured than 62% of the currently-active bar.
- 26 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #658 of 2,912
- by tenure in Boston office peers
- Law school
- Tulane Law School
Data updated September 2026
What this profile tells you
Bar status & tenure
Registration 3036571 with the New York bar authority has long belonged to Jonathan Francis Xavier O'Brien, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Sherin And Lodgen LLP, located in Boston, MA, ZIP 02111. 4 other attorneys share this firm affiliation in the registry. Educational background: TULANE LAW SCHOOL (256 registered alumni).
State context & due diligence
After 26 years on the register, Jonathan Francis Xavier O'Brien 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 Jonathan Francis Xavier O'Brien's 26 years since admission in 2000.
26 years on the New York bar
Years since admission, all currently-active NY attorneys
26 Top 38% higher than 62% of 290,787 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 · September 2026
Tenure among Boston, MA office peers
Jonathan Francis Xavier O'Brien is earlier in the Boston, MA office cohort than most peers: local tenure rank #658 of 2,912 (23rd percentile). See the Boston attorney directory .
- Local rank
- #658
- City cohort
- 2,912
- Local percentile
- 23rd
- Admitted
- 2000
Nearest tenure peers in Boston
- Michael Jay Altieri admitted 2000 · 26 yr
- Ilan David Barzilay admitted 2000 · 26 yr
- Eric Wayne Blanchard admitted 2000 · 26 yr
- Alexander Henderson Bopp admitted 2000 · 26 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
How Jonathan compares to fellow Tulane Law School alumni
Among the 231 Tulane Law School graduates in the New York register, Jonathan Francis Xavier O'Brien is longer-tenured than 48%.
26 years vs. Tulane Law School alumni
Years since admission - 231 NY-registered alumni of this school
26 Top 52% higher than 48% of 231 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 · September 2026
Tulane Law School's active-bar rate
Of Tulane Law School's 256 alumni in the New York register, 67.6% currently hold "Currently registered" status, above the statewide average.
The 2000 admission class today
Of the 7,585 attorneys admitted to the New York bar in 2000, 63.8% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 3036571
- Year Admitted
- 2000 (26 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Jul 2028
Location & Contact
- Company
- Sherin And Lodgen LLP
- City
- Boston, MA
- ZIP Code
- 02111
- Phone
- (617) 646-2159
Education
Status Distribution Across the New York Bar
Jonathan Francis Xavier O'Brien's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-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.
Same firm affiliation: Sherin And Lodgen LLP
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Tulane Law School alumni
Fellow alumni on the NY register whose admission year is closest to 2000 (excluding same-firm colleagues above).
Same admission year (2000), other cities
NY-registered attorneys admitted in 2000 whose listed office city differs from Boston, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Jonathan Francis Xavier O'Brien: closest NY bar admission year outside MA, and closest out-of-state office cities by how many NY-registered attorneys they list (~2,913 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2000)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
Jonathan Francis Xavier O'Brien'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 Jonathan O'Brien licensed?
Jonathan O'Brien is licensed to practice law in New York.
When was Jonathan Francis Xavier O'Brien admitted to the bar?
Jonathan Francis Xavier O'Brien's admission to the New York bar dates back to 2000.
Where did Jonathan Francis Xavier O'Brien go to law school?
Jonathan Francis Xavier O'Brien attended TULANE LAW SCHOOL.
What company does Jonathan Francis Xavier O'Brien work for?
Jonathan Francis Xavier O'Brien is associated with Sherin And Lodgen LLP in Boston, MA.
Is Jonathan Francis Xavier O'Brien in good standing?
Yes, Jonathan Francis Xavier O'Brien holds active bar status ("Currently registered").
Cite this page & disclosure
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.