New York attorney record · Judicial Dept 1
Zachary William Sonenshine
Harvard Law School alumna, admitted to the New York bar in 2018, registered office in Mount Kisco, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2018
- Admitted
- 8
- Years in bar
- 5637525
- NY reg #
The record in one line
Admitted in 2018, Zachary William Sonenshine has built 8 years of active New York practice - more tenure than 13% of the state's currently-active attorneys.
- 8 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #182 of 187
- by tenure in Mount Kisco office peers
- Law school
- Harvard Law School
Data updated August 2026
What this profile tells you
Bar status & tenure
Bar number 5637525 on the New York register belongs to Zachary William Sonenshine, currently in active 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 Kohlberg & Co, located in Mount Kisco, NY (Westchester County), ZIP 10549. Educational background: Harvard Law School (9,205 registered alumni).
State context & due diligence
Zachary William Sonenshine is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
8 years into an active New York practice since a 2018 admission, Zachary William Sonenshine sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
8 years on the New York bar
Years since admission, all currently-active NY attorneys
8 Top 87% higher than 13% 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 Mount Kisco, NY office peers
In Mount Kisco, NY's NY-registered cohort of 187, Zachary William Sonenshine sits at local tenure rank #182 (97th percentile). See the Mount Kisco attorney directory .
- Local rank
- #182
- City cohort
- 187
- Local percentile
- 97th
- Admitted
- 2018
Nearest tenure peers in Mount Kisco
- Sara M. O'Shea admitted 2018 · 8 yr
- Matthew John Arpino admitted 2017 · 9 yr
- Sabrina Marie Blefgen admitted 2019 · 7 yr
- Karine P. Patino admitted 2017 · 9 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.
How Zachary compares to fellow Harvard Law School alumni
Among the 8,724 Harvard Law School graduates in the New York register, Zachary William Sonenshine is longer-tenured than 16%.
8 years vs. Harvard Law School alumni
Years since admission - 8,724 NY-registered alumni of this school
8 Top 84% higher than 16% 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 · August 2026
Harvard Law School's active-bar rate
Of Harvard Law School's 9,205 alumni in the New York register, 74.8% currently hold "Currently registered" status, above the statewide average.
The 2018 admission class today
Of the 8,750 attorneys admitted to the New York bar in 2018, 73.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5637525
- Year Admitted
- 2018 (8 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Feb 2028
Location & Contact
- Company
- Kohlberg & Co
- City
- Mount Kisco, NY
- County
- Westchester
- ZIP Code
- 10549
- Phone
- (914) 354-5405
Education
Status Distribution Across the New York Bar
Zachary William Sonenshine'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.
Near-tenure Harvard Law School alumni
Fellow alumni on the NY register whose admission year is closest to 2018 (excluding same-firm colleagues above).
Same admission year (2018), other cities
NY-registered attorneys admitted in 2018 whose listed office city differs from Mount Kisco, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Zachary William Sonenshine: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~188 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2018)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Mount Kisco, NY
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Compare attorneys →Before you rely on this record
Zachary William Sonenshine'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 Zachary Sonenshine licensed?
Zachary Sonenshine is licensed to practice law in New York.
When was Zachary William Sonenshine admitted to the bar?
Zachary William Sonenshine has been on the New York bar register since 2018.
Where did Zachary William Sonenshine go to law school?
Zachary William Sonenshine attended Harvard Law School.
What company does Zachary William Sonenshine work for?
Zachary William Sonenshine is associated with Kohlberg & Co in Mount Kisco, NY.
Is Zachary William Sonenshine in good standing?
Yes, Zachary William Sonenshine 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.