New York attorney record · Judicial Dept 2
John Joseph Sheerin
St John University alumna, admitted to the New York bar in 1993, registered office in Syosset, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1993
- Admitted
- 33
- Years in bar
- 2519791
- NY reg #
The record in one line
With 33 years on the register since a 1993 admission, John Joseph Sheerin ranks among the New York bar's most senior active practitioners, longer-tenured than 71% of the currently-active bar.
- 33 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 29%
- by tenure among active NY attorneys
- Law school
- St John University
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 2519791 with the New York bar authority has long belonged to John Joseph Sheerin, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Mullooly, Jeffrey, Rooney & Flynn, LLP, located in Syosset, NY (Nassau County), ZIP 11791. 1 other attorney shares this firm affiliation in the registry. Educational background: ST JOHN UNIVERSITY (96 registered alumni).
State context & due diligence
After 33 years on the register, John Joseph Sheerin 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 John Joseph Sheerin's 33 years since admission in 1993. The histogram plots that tenure against every currently-active attorney in the state.
33 years on the New York bar
Years since admission, all currently-active NY attorneys
33 Top 29% higher than 71% 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 John compares to fellow St John University alumni
Among the 69 St John University graduates in the New York register, John Joseph Sheerin is longer-tenured than 16% - a school-cohort view of experience, alongside the statewide one above.
33 years vs. St John University alumni
Years since admission - 69 NY-registered alumni of this school
33 Top 84% higher than 16% of 69 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
St John University's active-bar rate
Of St John University's 96 alumni in the New York register, 46.9% currently hold "Currently registered" status, below the statewide average.
St John University alumni, active-bar rate
The 1993 admission class today
Of the 6,440 attorneys admitted to the New York bar in 1993, 75.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2519791
- Year Admitted
- 1993 (33 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Jul 2027
Location & Contact
- Company
- Mullooly, Jeffrey, Rooney & Flynn, LLP
- City
- Syosset, NY
- County
- Nassau
- ZIP Code
- 11791
- Phone
- (516) 656-5333
Education
Status Distribution Across the New York Bar
John Joseph Sheerin'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 Mullooly, Jeffrey, Rooney & Flynn, LLP
View all attorneys at this firm →Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Syosset, NY
Compare credentials side-by-side
Compare John Joseph Sheerin with similar attorneys in Syosset.
Compare attorneys →Before you rely on this record
John Joseph Sheerin'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 John Sheerin licensed?
John Sheerin is licensed to practice law in New York.
When was John Joseph Sheerin admitted to the bar?
John Joseph Sheerin's admission to the New York bar dates back to 1993.
Where did John Joseph Sheerin go to law school?
John Joseph Sheerin attended ST JOHN UNIVERSITY.
What company does John Joseph Sheerin work for?
John Joseph Sheerin is associated with Mullooly, Jeffrey, Rooney & Flynn, LLP in Syosset, NY.
Is John Joseph Sheerin in good standing?
Yes, John Joseph Sheerin 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.