William David Dalsen
On the New York attorney register since 2011 · office in Boston, MA
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4938924
- Admitted
- 2011 · Third Department
- Status
- Currently registered
- Next registration
- Feb 2027
William David Dalsen is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2011 in the Third Department, with an office in Boston, MA; next registration due Feb 2027. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means William David Dalsen has filed the biennial registration the court system requires; the next one is due in Feb 2027.
- Currently registered unchanged
- Currently registered unchanged
- Currently registered the first file we hold
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; the Jul 3, 2026 and Aug 6, 2026 files for the history.
Others who list this employer on the register
517 other attorneys list Proskauer Rose LLP or one of its other names as their employer on the register; 215 of them were admitted before 2011, and 23 of the 518 give an office in Boston, MA. The 5 whose admission is closest to 2011, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Noa Michelle Baddish | 2011 | Currently registered |
| Robert James Baehr | 2011 | Currently registered |
| Stephen Robert Chuk | 2011 | Currently registered |
| Laura Michelle Fant | 2011 | Currently registered |
| Adam Judd Farbiarz | 2011 | Currently registered |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; employer spellings merged (methodology).
Where this record sits on the register
William David Dalsen studied at University of Wisconsin Law School. 227 of its 835 living graduates on the register were admitted in the 2010s, as William David Dalsen was.
- Same law school
- 835living graduates; 81.4% registered (current or due), against 87.1% overall
- Office in Boston, MA
- 2,932living registrants (outside New York State)
Of the 2,932 living registrants with an office in Boston, MA, 1,542 were admitted before 2011 and 1,266 after.
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; living registrants only.
Questions this record leads to
- Everyone who lists Proskauer Rose LLP518 on the register, 215 of the others admitted before 2011; 23 of the 518 give an office in Boston, MA.
- University of Wisconsin Law School graduates on the register835 living, 81.4% registered; 2 of them list Proskauer Rose LLP.
- New York-admitted attorneys in Boston, MA2,932 living registrants give an office there.
- Admitted in 20119,856 people admitted in 2011 are on the register, 4,120 of them through the Third Department.
- Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
- What a New York lawyer may chargeThe court rules on fees, retainers and fee disputes, each cited.
How to confirm it officially
For a statement of William David Dalsen’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Third Department, which admitted William David Dalsen in 2011. The register places the office outside New York, so a complaint would go to that department’s grievance committee (22 NYCRR 1240.7(a)(2)).
This page reads the register file of Sep 29, 2026, and the court system’s own search can be newer; the register shows only the current value, so a suspension that ended before the files we hold, or a censure, leaves no trace here (Appellate Division decisions are published through the court system’s Law Reporting Bureau).