New York attorney record · Judicial Dept 3
William David Dalsen
University Of Wisconsin Law School alumna, admitted to the New York bar in 2011, registered office in Boston, MA. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2011
- Admitted
- 15
- Years in bar
- 4938924
- NY reg #
The record in one line
William David Dalsen has held an active New York bar license for 15 years - admitted in 2011, longer-tenured than 37% of the state's currently-active attorneys.
- 15 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 63%
- by tenure among active NY attorneys
- Law school
- University Of Wisconsin Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
William David Dalsen carries New York bar registration 4938924, an established, active practitioner in good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Proskauer Rose LLP, located in Boston, MA, ZIP 02110. 5 other attorneys share this firm affiliation in the registry. Educational background: University of Wisconsin Law School (393 registered alumni).
State context & due diligence
With an established practice on record, William David Dalsen 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
William David Dalsen was admitted in 2011, giving 15 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.
15 years on the New York bar
Years since admission, all currently-active NY attorneys
15 Top 63% higher than 37% 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 Wisconsin Law School alumni
Among the 321 University Of Wisconsin Law School graduates in the New York register, William David Dalsen is longer-tenured than 64% - a school-cohort view of experience, alongside the statewide one above.
15 years vs. University Of Wisconsin Law School alumni
Years since admission - 321 NY-registered alumni of this school
15 Top 36% higher than 64% of 321 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 Wisconsin Law School's active-bar rate
Of University Of Wisconsin Law School's 393 alumni in the New York register, 79.4% currently hold "Currently registered" status, above the statewide average.
University Of Wisconsin Law School alumni, active-bar rate
The 2011 admission class today
Of the 9,856 attorneys admitted to the New York bar in 2011, 85.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4938924
- Year Admitted
- 2011 (15 yrs · senior)
- Judicial Department
- 3
- Next Registration
- Feb 2027
Location & Contact
- Company
- Proskauer Rose LLP
- City
- Boston, MA
- ZIP Code
- 02110
- Phone
- (617) 526-9429
Education
Status Distribution Across the New York Bar
William David Dalsen'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 Proskauer Rose LLP
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Compare attorneys →Before you rely on this record
William David Dalsen'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 Dalsen licensed?
William Dalsen is licensed to practice law in New York.
When was William David Dalsen admitted to the bar?
William David Dalsen was admitted to the bar in 2011.
Where did William David Dalsen go to law school?
William David Dalsen attended University of Wisconsin Law School.
What company does William David Dalsen work for?
William David Dalsen is associated with Proskauer Rose LLP in Boston, MA.
Is William David Dalsen in good standing?
Yes, William David Dalsen 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.