New York attorney record · Judicial Dept 2
Leslie Macdonald Ballantyne
Harvard Law School alumna, admitted to the New York bar in 2002, registered office in New York, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2002
- Admitted
- 24
- Years in bar
- 4019188
- NY reg #
The record in one line
Leslie Macdonald Ballantyne has held an active New York bar license for 24 years - admitted in 2002, longer-tenured than 51% of the state's currently-active attorneys.
- 24 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 49%
- by tenure among active NY attorneys
- Law school
- Harvard Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Leslie Macdonald Ballantyne carries New York bar registration 4019188, an established, active practitioner in 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 Memorial Sloan Kettering Cancer Center, located in New York, NY (New York County), ZIP 10017. 5 other attorneys share this firm affiliation in the registry. Educational background: Harvard Law School (16,595 registered alumni).
State context & due diligence
With an established practice on record, Leslie Macdonald Ballantyne 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
Leslie Macdonald Ballantyne was admitted in 2002, giving 24 years on the New York register. The histogram places that tenure against every currently-active attorney in the state, taller bars hold more attorneys at that experience level.
24 years on the New York bar
Years since admission, all currently-active NY attorneys
24 Top 49% higher than 51% 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 Leslie compares to fellow Harvard Law School alumni
Among the 8,587 Harvard Law School graduates in the New York register, Leslie Macdonald Ballantyne is longer-tenured than 70% - a school-cohort view of experience, alongside the statewide one above.
24 years vs. Harvard Law School alumni
Years since admission - 8,587 NY-registered alumni of this school
24 Top 30% higher than 70% of 8,587 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
Harvard Law School's active-bar rate
Of Harvard Law School's 16,595 alumni in the New York register, 73.6% currently hold "Currently registered" status, above the statewide average.
Harvard Law School alumni, active-bar rate
The 2002 admission class today
Of the 7,981 attorneys admitted to the New York bar in 2002, 65.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4019188
- Year Admitted
- 2002 (24 yrs · senior)
- Judicial Department
- 2
- Next Registration
- Oct 2026
Location & Contact
- Company
- Memorial Sloan Kettering Cancer Center
- City
- New York, NY
- County
- New York
- ZIP Code
- 10017
- Phone
- (845) 893-5146
Education
Status Distribution Across the New York Bar
Leslie Macdonald Ballantyne'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 Memorial Sloan Kettering Cancer Center
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Compare attorneys →Before you rely on this record
Leslie Macdonald Ballantyne'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 Leslie Ballantyne licensed?
Leslie Ballantyne is licensed to practice law in New York.
When was Leslie Macdonald Ballantyne admitted to the bar?
Leslie Macdonald Ballantyne was admitted to the bar in 2002.
Where did Leslie Macdonald Ballantyne go to law school?
Leslie Macdonald Ballantyne attended Harvard Law School.
What company does Leslie Macdonald Ballantyne work for?
Leslie Macdonald Ballantyne is associated with Memorial Sloan Kettering Cancer Center in New York, NY.
Is Leslie Macdonald Ballantyne in good standing?
Yes, Leslie Macdonald Ballantyne 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.