New York attorney record · Judicial Dept 2
Konstantin Yefimovich Lantsman
Harvard Law School alumna, admitted to the New York bar in 2016, registered office in New Haven, CT. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5455829
- NY reg #
The record in one line
Konstantin Yefimovich Lantsman appears in the New York attorney register with a current status of "Due to reregister within 30 days of birthday", on record since 2016 - an administrative designation rather than discipline, but confirm current standing with the state bar.
- 10 yrs
- since first admission to the bar
- Pending-renewal
- current bar status: "Due to reregister within 30 days of birthday"
- #343 of 423
- by tenure in New Haven office peers
- Law school
- Harvard Law School
Data updated September 2026
What this profile tells you
Bar status & tenure
Konstantin Yefimovich Lantsman is registered as bar number 5455829 with the New York bar authority, carrying a current status of "Due to reregister within 30 days of birthday", a routine periodic-renewal reminder, not discipline. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under U.S. Attorney'S Office - District Of Connecticut, located in New Haven, CT, ZIP 06510. 1 other attorney shares this firm affiliation in the registry. Educational background: Harvard Law School (16,712 registered alumni).
State context & due diligence
A "Due to reregister within 30 days of birthday" status falls outside the New York bar's active cohort for now. The breakdown below shows what share of the register that represents.
Tenure among New Haven, CT office peers
Konstantin Yefimovich Lantsman is among the longer-standing NY-bar records in New Haven, CT: #343 of 423 by years since admission (81st percentile locally). See the New Haven attorney directory .
- Local rank
- #343
- City cohort
- 423
- Local percentile
- 81st
- Admitted
- 2016
Nearest tenure peers in New Haven
- Ariela Claudia Anhalt admitted 2016 · 10 yr
- Brian Patrick Kenney admitted 2016 · 10 yr
- Alexander Stephen Lee admitted 2016 · 10 yr
- Lawton Chung Leung admitted 2016 · 10 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 Konstantin compares to fellow Harvard Law School alumni
Among the 8,724 Harvard Law School graduates in the New York register, Konstantin Yefimovich Lantsman is longer-tenured than 35%.
10 years vs. Harvard Law School alumni
Years since admission - 8,724 NY-registered alumni of this school
10 Top 65% higher than 35% of 8,724 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
Harvard Law School's active-bar rate
Of Harvard Law School's 16,712 alumni in the New York register, 63.6% currently hold "Currently registered" status, below the statewide average.
The 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Due to reregister within 30 days of birthday
- Registration Number
- 5455829
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 2
- Next Registration
- Aug 2026
Location & Contact
- Company
- U.S. Attorney'S Office - District Of Connecticut
- City
- New Haven, CT
- ZIP Code
- 06510
- Phone
- (203) 821-3700
Education
Status Distribution Across the New York Bar
Konstantin Yefimovich Lantsman's current status, "Due to reregister within 30 days of birthday", places this record outside 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: U.S. Attorney'S Office - District Of Connecticut
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure Harvard Law School alumni
Fellow alumni on the NY register whose admission year is closest to 2016 (excluding same-firm colleagues above).
Same admission year (2016), other cities
NY-registered attorneys admitted in 2016 whose listed office city differs from New Haven, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Konstantin Yefimovich Lantsman: closest NY bar admission year outside CT, and closest out-of-state office cities by how many NY-registered attorneys they list (~424 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2016)
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
Konstantin Yefimovich Lantsman is currently listed as "Due to reregister within 30 days of birthday", treat that as a registration fact to confirm, not a verdict on quality.
Frequently Asked Questions
Where is Konstantin Lantsman licensed?
Konstantin Lantsman is licensed to practice law in New York.
When was Konstantin Yefimovich Lantsman admitted to the bar?
Konstantin Yefimovich Lantsman has been on the New York bar register since 2016.
Where did Konstantin Yefimovich Lantsman go to law school?
Konstantin Yefimovich Lantsman attended Harvard Law School.
What company does Konstantin Yefimovich Lantsman work for?
Konstantin Yefimovich Lantsman is associated with U.S. Attorney'S Office - District Of Connecticut in New Haven, CT.
Is Konstantin Yefimovich Lantsman in good standing?
Not currently, Konstantin Yefimovich Lantsman's listed status is "Due to reregister within 30 days of birthday", not active standing. Confirm current status with the state bar.
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.