Benjamin Hans Diessel
On the New York attorney register since 2009 · office in New Haven, CT
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4686291
- Admitted
- 2009 · First Department
- Status
- Currently registered
- Next registration
- Feb 2027
Benjamin Hans Diessel is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2009 in the First Department, with an office in New Haven, CT; 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 Benjamin Hans Diessel 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
105 other attorneys list Wiggin and Dana LLP or one of its other names as their employer on the register; 46 of them were admitted before 2009, and 28 of the 106 give an office in New Haven, CT. The 5 whose admission is closest to 2009, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Scott Anthony Griffin | 2008 | Currently registered |
| Tadhg Aodh Joseph Dooley | 2009 | Currently registered |
| James Peter Greifzu | 2009 | Currently registered |
| Michael James Lipp | 2009 | Currently registered |
| Vanessa Lynne Maczko | 2009 | 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
Benjamin Hans Diessel studied at University of Michigan Law School (the register spells it “UNIV. OF MICHIGAN”). 1,127 of its 4,806 living graduates on the register were admitted in the 2000s, as Benjamin Hans Diessel was.
- Same law school
- 4,806living graduates; 86.9% registered (current or due), against 87.1% overall
- Office in New Haven, CT
- 429living registrants (outside New York State)
Of the 429 living registrants with an office in New Haven, CT, 250 were admitted before 2009 and 165 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 Wiggin and Dana LLP106 on the register, 46 of the others admitted before 2009; 28 of the 106 give an office in New Haven, CT.
- University of Michigan Law School graduates on the register4,806 living, 86.9% registered.
- New York-admitted attorneys in New Haven, CT429 living registrants give an office there.
- Admitted in 200910,203 people admitted in 2009 are on the register, 3,831 of them through the First 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 Benjamin Hans Diessel’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, First Department, which admitted Benjamin Hans Diessel in 2009. 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).