New York attorney record · Judicial Dept 3
Justin Christopher Hallberg
Rutgers University School Of Law-Newark alumna, admitted to the New York bar in 2009, registered office in Sleepy Hollow, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2009
- Admitted
- 17
- Years in bar
- 4736872
- NY reg #
The record in one line
Justin Christopher Hallberg has held an active New York bar license for 17 years - admitted in 2009, longer-tenured than 38% of the state's currently-active attorneys.
- 17 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #46 of 68
- by tenure in Sleepy Hollow office peers
- Law school
- Rutgers University School Of Law-Newark
Data updated August 2026
What this profile tells you
Bar status & tenure
Justin Christopher Hallberg carries New York bar registration 4736872, an established, active practitioner in 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 Regeneron Pharmaceuticals, Inc., located in Sleepy Hollow, NY (Westchester County), ZIP 10591. 5 other attorneys share this firm affiliation in the registry. Educational background: RUTGERS UNIVERSITY SCHOOL OF LAW-NEWARK (27 registered alumni).
State context & due diligence
With an established practice on record, Justin Christopher Hallberg 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
Justin Christopher Hallberg was admitted in 2009, giving 17 years on the New York register.
17 years on the New York bar
Years since admission, all currently-active NY attorneys
17 Top 62% higher than 38% 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 · August 2026
Tenure among Sleepy Hollow, NY office peers
Against Sleepy Hollow, NY's 68-attorney NY register cohort, Justin Christopher Hallberg lands at the 66th tenure percentile (rank #46). See the Sleepy Hollow attorney directory .
- Local rank
- #46
- City cohort
- 68
- Local percentile
- 66th
- Admitted
- 2009
Nearest tenure peers in Sleepy Hollow
- Adam Jacob Bernstein admitted 2010 · 16 yr
- Kelly Ann Carpenter admitted 2010 · 16 yr
- Alicia Susanne Alterbaum admitted 2011 · 15 yr
- Michael J. Catallo admitted 2011 · 15 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 August 2026. Derived local rank, not published upstream.
Rutgers University School Of Law-Newark's active-bar rate
Of Rutgers University School Of Law-Newark's 27 alumni in the New York register, 77.8% currently hold "Currently registered" status, above the statewide average.
The 2009 admission class today
Of the 10,203 attorneys admitted to the New York bar in 2009, 87.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4736872
- Year Admitted
- 2009 (17 yrs · senior)
- Judicial Department
- 3
- Next Registration
- Nov 2027
Location & Contact
- Company
- Regeneron Pharmaceuticals, Inc.
- City
- Sleepy Hollow, NY
- County
- Westchester
- ZIP Code
- 10591
- Phone
- (914) 847-3262
Education
Status Distribution Across the New York Bar
Justin Christopher Hallberg'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: Regeneron Pharmaceuticals, Inc.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Rutgers University School Of Law-Newark alumni
Fellow alumni on the NY register whose admission year is closest to 2009 (excluding same-firm colleagues above).
Same admission year (2009), other cities
NY-registered attorneys admitted in 2009 whose listed office city differs from Sleepy Hollow, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Justin Christopher Hallberg: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~69 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2009)
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
Justin Christopher Hallberg'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 Justin Hallberg licensed?
Justin Hallberg is licensed to practice law in New York.
When was Justin Christopher Hallberg admitted to the bar?
Justin Christopher Hallberg was admitted to the bar in 2009.
Where did Justin Christopher Hallberg go to law school?
Justin Christopher Hallberg attended RUTGERS UNIVERSITY SCHOOL OF LAW-NEWARK.
What company does Justin Christopher Hallberg work for?
Justin Christopher Hallberg is associated with Regeneron Pharmaceuticals, Inc. in Sleepy Hollow, NY.
Is Justin Christopher Hallberg in good standing?
Yes, Justin Christopher Hallberg 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.