New York attorney record · Judicial Dept 3
William John Mahannah
Univ Of Maryland alumna, admitted to the New York bar in 1982. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1982
- Admitted
- 44
- Years in bar
- 1818707
- NY reg #
The record in one line
William John Mahannah has spent 44 years on the register since admission in 1982, one of the longest-standing active practitioners the state bar carries at 86% tenure percentile.
- 44 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 14%
- by tenure among active NY attorneys
- Law school
- Univ Of Maryland
Data updated May 2026
What this profile tells you
Bar status & tenure
William John Mahannah has carried New York bar registration 1818707 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Even after 44 years on the register, no firm or business address is on file for this attorney. Educational background: UNIV OF MARYLAND (46 registered alumni).
State context & due diligence
Across a career spanning 44 years, William John Mahannah has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
William John Mahannah's 44 years since a 1982 admission places this record near the far edge of the statewide tenure curve below.
44 years on the New York bar
Years since admission, all currently-active NY attorneys
44 Top 14% higher than 86% 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
Univ Of Maryland's active-bar rate
Of Univ Of Maryland's 46 alumni in the New York register, 43.2% currently hold "Currently registered" status, below the statewide average.
Univ Of Maryland alumni, active-bar rate
The 1982 admission class today
Of the 5,180 attorneys admitted to the New York bar in 1982, 53.3% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1818707
- Year Admitted
- 1982 (44 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Mar 2028
Location & Contact
- Phone
- (410) 719-2437
Education
Status Distribution Across the New York Bar
William John Mahannah'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.
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
William John Mahannah'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 Mahannah licensed?
William Mahannah is licensed to practice law in New York.
When was William John Mahannah admitted to the bar?
William John Mahannah's admission to the New York bar dates back to 1982.
Where did William John Mahannah go to law school?
William John Mahannah attended UNIV OF MARYLAND.
Is William John Mahannah in good standing?
Yes, William John Mahannah 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.