Robert Olin Greffenius
On the New York attorney register since 2010 · office in Washington, DC
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4796470
- Admitted
- 2010 · Third Department
- Status
- Currently registered
- Next registration
- Mar 2028
Robert Olin Greffenius is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2010 in the Third Department, with an office in Washington, DC; next registration due Mar 2028. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Robert Olin Greffenius has filed the biennial registration the court system requires; the next one is due in Mar 2028.
- 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
193 other attorneys list Wilmer Cutler Pickering Hale and Dorr LLP or one of its other names as their employer on the register; 68 of them were admitted before 2010, and 44 of the 194 give an office in Washington, DC. The 5 whose admission is closest to 2010, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Douglas Leaman Burton | 2010 | Currently registered |
| Andrew James Danford | 2010 | Currently registered |
| David Moses Horn | 2010 | Currently registered |
| Scott Nathaniel Lunin | 2010 | Currently registered |
| George Whitcomb Shuster Jr. | 2010 | Currently registered |
All 194 registrations that list Wilmer Cutler Pickering Hale and Dorr LLP
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
Robert Olin Greffenius studied at American University Washington College of Law. 1,368 of its 4,261 living graduates on the register were admitted in the 2010s, as Robert Olin Greffenius was.
- Same law school
- 4,261living graduates; 88.3% registered (current or due), against 87.1% overall
- Office in Washington, DC
- 12,527living registrants (outside New York State)
Of the 12,527 living registrants with an office in Washington, DC, 6,382 were admitted before 2010 and 5,681 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 Wilmer Cutler Pickering Hale and Dorr LLP194 on the register, 68 of the others admitted before 2010; 44 of the 194 give an office in Washington, DC.
- American University Washington College of Law graduates on the register4,261 living, 88.3% registered.
- New York-admitted attorneys in Washington, DC12,527 living registrants give an office there.
- Admitted in 201010,128 people admitted in 2010 are on the register, 3,925 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 Robert Olin Greffenius’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 Robert Olin Greffenius in 2010. 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).