New York attorney record · Judicial Dept 1
William Michael Heisey
Osgoode Hall Law School alumna, admitted to the New York bar in 2019. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2019
- Admitted
- 7
- Years in bar
- 5665492
- NY reg #
The record in one line
Admitted in 2019, William Michael Heisey has built 7 years of active New York practice - more tenure than 12% of the state's currently-active attorneys.
- 7 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 88%
- by tenure among active NY attorneys
- Law school
- Osgoode Hall Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5665492 on the New York register belongs to William Michael Heisey, 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 Osler, Hoskin & Harcourt LLP, located in Toronto. 5 other attorneys share this firm affiliation in the registry. Educational background: OSGOODE HALL LAW SCHOOL (258 registered alumni).
State context & due diligence
William Michael Heisey 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
7 years into an active New York practice since a 2019 admission, William Michael Heisey sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
7 years on the New York bar
Years since admission, all currently-active NY attorneys
7 Top 88% higher than 12% 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 William compares to fellow Osgoode Hall Law School alumni
Among the 147 Osgoode Hall Law School graduates in the New York register, William Michael Heisey is longer-tenured than 1% - a school-cohort view of experience, alongside the statewide one above.
7 years vs. Osgoode Hall Law School alumni
Years since admission - 147 NY-registered alumni of this school
7 Top 99% higher than 1% of 147 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
Osgoode Hall Law School's active-bar rate
Of Osgoode Hall Law School's 258 alumni in the New York register, 81.4% currently hold "Currently registered" status, above the statewide average.
Osgoode Hall Law School alumni, active-bar rate
The 2019 admission class today
Of the 8,536 attorneys admitted to the New York bar in 2019, 92.5% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5665492
- Year Admitted
- 2019 (7 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Apr 2027
Location & Contact
- Company
- Osler, Hoskin & Harcourt LLP
- City
- Toronto
- Phone
- (416) 862-4913
Education
Status Distribution Across the New York Bar
William Michael Heisey'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 Osler, Hoskin & Harcourt LLP
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
William Michael Heisey'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 William Heisey licensed?
William Heisey is licensed to practice law in New York.
When was William Michael Heisey admitted to the bar?
William Michael Heisey has been on the New York bar register since 2019.
Where did William Michael Heisey go to law school?
William Michael Heisey attended OSGOODE HALL LAW SCHOOL.
What company does William Michael Heisey work for?
William Michael Heisey is associated with Osler, Hoskin & Harcourt LLP in Toronto.
Is William Michael Heisey in good standing?
Yes, William Michael Heisey 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.