New York attorney record · Judicial Dept 1
Jason Leon Kropp
Boston College alumna, admitted to the New York bar in 2004, registered office in Boston, MA. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2004
- Admitted
- 22
- Years in bar
- 4203287
- NY reg #
The record in one line
Jason Leon Kropp has held an active New York bar license for 22 years - admitted in 2004, longer-tenured than 51% of the state's currently-active attorneys.
- 22 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #908 of 2,912
- by tenure in Boston office peers
- Law school
- Boston College
Data updated September 2026
What this profile tells you
Bar status & tenure
Jason Leon Kropp carries New York bar registration 4203287, an established, active practitioner in 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 Sidley Austin LLP, located in Boston, MA, ZIP 02109. 5 other attorneys share this firm affiliation in the registry. Educational background: BOSTON COLLEGE.
State context & due diligence
With an established practice on record, Jason Leon Kropp remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
Jason Leon Kropp was admitted in 2004, giving 22 years on the New York register.
22 years on the New York bar
Years since admission, all currently-active NY attorneys
22 Top 49% higher than 51% 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
Jason Leon Kropp is earlier in the Boston, MA office cohort than most peers: local tenure rank #908 of 2,912 (31st percentile). See the Boston attorney directory .
- Local rank
- #908
- City cohort
- 2,912
- Local percentile
- 31st
- Admitted
- 2004
Nearest tenure peers in Boston
- John Edward Alessi admitted 2004 · 22 yr
- Nina Elisabet Andersson-Willard admitted 2004 · 22 yr
- Anthony James Barbuto admitted 2004 · 22 yr
- Gerret John Baur admitted 2004 · 22 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 Jason compares to fellow Boston College alumni
Among the 788 Boston College graduates in the New York register, Jason Leon Kropp is longer-tenured than 16%.
22 years vs. Boston College alumni
Years since admission - 788 NY-registered alumni of this school
22 Top 84% higher than 16% of 788 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
The 2004 admission class today
Of the 8,407 attorneys admitted to the New York bar in 2004, 65.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4203287
- Year Admitted
- 2004 (22 yrs · senior)
- Judicial Department
- 1
- Next Registration
- Apr 2028
Location & Contact
- Company
- Sidley Austin LLP
- City
- Boston, MA
- ZIP Code
- 02109
- Phone
- (617) 223-0300
Education
BOSTON COLLEGE
Status Distribution Across the New York Bar
Jason Leon Kropp'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: Sidley Austin LLP
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Boston College alumni
Fellow alumni on the NY register whose admission year is closest to 2004 (excluding same-firm colleagues above).
Same admission year (2004), other cities
NY-registered attorneys admitted in 2004 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 Jason Leon Kropp: 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 (~2004)
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
Jason Leon Kropp'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 Jason Kropp licensed?
Jason Kropp is licensed to practice law in New York.
When was Jason Leon Kropp admitted to the bar?
Jason Leon Kropp was admitted to the bar in 2004.
Where did Jason Leon Kropp go to law school?
Jason Leon Kropp attended BOSTON COLLEGE.
What company does Jason Leon Kropp work for?
Jason Leon Kropp is associated with Sidley Austin LLP in Boston, MA.
Is Jason Leon Kropp in good standing?
Yes, Jason Leon Kropp 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.