PlainAttorney Register file of Sep 29, 2026 · NY Office of Court Administration, via data.ny.gov

Shizuo Dietrich Arima

On the New York attorney register since 2025 · office in New York, NY

PlainAttorney’s reading of the public register file, not a court record.

Registration No.
6182844
Admitted
2025 · Third Department
Status
Currently registered
Next registration
Jun 2027

Shizuo Dietrich Arima is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2025 in the Third Department, with an office in New York, NY; next registration due Jun 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 Shizuo Dietrich Arima has filed the biennial registration the court system requires; the next one is due in Jun 2027.

  1. Currently registered unchanged
  2. Currently registered unchanged
  3. 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

265 other attorneys list Sheppard, Mullin, Richter & Hampton LLP or one of its other names as their employer on the register; 251 of them were admitted before 2025, and 184 of the 266 give an office in New York, NY. The 5 whose admission is closest to 2025, earliest first:

AttorneyAdmittedStatus
Sidrah Amin2025Currently registered
Andrew Jonathon Bond2025Currently registered
Chloe Gunther Chung2025Currently registered
Samuel Lawrence Cournoyer2025Currently registered
Brendan Peter Duggan2025Currently registered

All 266 registrations that list Sheppard, Mullin, Richter & Hampton 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

Shizuo Dietrich Arima studied at Emory University School of Law. 450 of its 2,405 living graduates on the register were admitted in the 2020s, as Shizuo Dietrich Arima was.

Same law school
2,405living graduates; 89.4% registered (current or due), against 87.1% overall
Office in New York, NY
93,604living registrants

Of the 93,604 living registrants with an office in New York, NY, 88,289 were admitted before 2025 and 1,996 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

  1. Everyone who lists Sheppard, Mullin, Richter & Hampton LLP266 on the register, 251 of the others admitted before 2025; 184 of the 266 give an office in New York, NY.
  2. Emory University School of Law graduates on the register2,405 living, 89.4% registered.
  3. Attorneys with an office in New York, NY93,604 living registrants give an office there.
  4. New York County’s registered bar75,989 currently registered, 46.63 per 1,000 residents.
  5. Admitted in 20259,764 people admitted in 2025 are on the register, 4,056 of them through the Third Department.
  6. Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
  7. 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 Shizuo Dietrich Arima’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 Shizuo Dietrich Arima in 2025. A complaint about this attorney would go to the First Department’s grievance committee, which covers New York County, where the register places the office.

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).

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