New York attorney record · Judicial Dept 2
William Haselden Ellerbe
University Of Michigan alumna, admitted to the New York bar in 2012, registered office in Philadelphia, PA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2012
- Admitted
- 14
- Years in bar
- 5051032
- NY reg #
The record in one line
Admitted in 2012, William Haselden Ellerbe has built 14 years of active New York practice - more tenure than 24% of the state's currently-active attorneys.
- 14 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 76%
- by tenure among active NY attorneys
- Law school
- University Of Michigan
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5051032 on the New York register belongs to William Haselden Ellerbe, currently in active 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 Berger Montague PC, located in Philadelphia, PA, ZIP 19103. 5 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY OF MICHIGAN (2,063 registered alumni).
State context & due diligence
William Haselden Ellerbe 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
14 years into an active New York practice since a 2012 admission, William Haselden Ellerbe sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
14 years on the New York bar
Years since admission, all currently-active NY attorneys
14 Top 76% higher than 24% 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 University Of Michigan alumni
Among the 1,206 University Of Michigan graduates in the New York register, William Haselden Ellerbe is longer-tenured than 3% - a school-cohort view of experience, alongside the statewide one above.
14 years vs. University Of Michigan alumni
Years since admission - 1,206 NY-registered alumni of this school
14 Top 97% higher than 3% of 1,206 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
University Of Michigan's active-bar rate
Of University Of Michigan's 2,063 alumni in the New York register, 61.6% currently hold "Currently registered" status, below the statewide average.
University Of Michigan alumni, active-bar rate
The 2012 admission class today
Of the 9,632 attorneys admitted to the New York bar in 2012, 69.6% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5051032
- Year Admitted
- 2012 (14 yrs · mid-career)
- Judicial Department
- 2
- Next Registration
- Jul 2026
Location & Contact
- Company
- Berger Montague PC
- City
- Philadelphia, PA
- ZIP Code
- 19103
- Phone
- (215) 989-4844
Education
Status Distribution Across the New York Bar
William Haselden Ellerbe'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 Berger Montague PC
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Compare attorneys →Before you rely on this record
William Haselden Ellerbe'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 Ellerbe licensed?
William Ellerbe is licensed to practice law in New York.
When was William Haselden Ellerbe admitted to the bar?
William Haselden Ellerbe has been on the New York bar register since 2012.
Where did William Haselden Ellerbe go to law school?
William Haselden Ellerbe attended UNIVERSITY OF MICHIGAN.
What company does William Haselden Ellerbe work for?
William Haselden Ellerbe is associated with Berger Montague PC in Philadelphia, PA.
Is William Haselden Ellerbe in good standing?
Yes, William Haselden Ellerbe 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.