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

Matthew Patrick O’Brien

On the New York attorney register since 2021 · office in New York, NY

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

Registration No.
5863352
Admitted
2021 · First Department
Status
Delinquent
Next registration
Mar 2027

Matthew Patrick O’Brien is delinquent on the New York attorney register file of Sep 29, 2026. Admitted in 2021 in the First Department, with an office in New York, NY; next registration due Mar 2027. The status is the same in all 3 files we hold. The month shown is the next cycle’s; the delinquency concerns an earlier registration the register did not receive.

What this status means on the register

On the register, “Delinquent” means the attorney has a registration the register shows as due and not received. Under the rule a failure to register results in referral to the Appellate Division for disciplinary action; the register does not show whether a given attorney was referred.

  1. Delinquent unchanged
  2. Delinquent unchanged
  3. Delinquent 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

124 other attorneys list Nelson Mullins Riley & Scarborough LLP or one of its other names as their employer on the register; 93 of them were admitted before 2021, and 37 of the 125 give an office in New York, NY. The 5 whose admission is closest to 2021, earliest first:

AttorneyAdmittedStatus
Tania Patricia Albuja2020Currently registered
Timothy Michael Harvey2021Currently registered
Eunji Kang2021Currently registered
Maria Florina Lupei2021Currently registered
Tiffany Marie Alexander2022Currently registered

All 125 registrations that list Nelson Mullins Riley & Scarborough 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

Matthew Patrick O’Brien studied at Fordham University School of Law. 2,837 of its 20,418 living graduates on the register were admitted in the 2020s, as Matthew Patrick O’Brien was.

Same law school
20,418living graduates; 87.9% 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, 75,518 were admitted before 2021 and 15,286 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 Nelson Mullins Riley & Scarborough LLP125 on the register, 93 of the others admitted before 2021; 37 of the 125 give an office in New York, NY.
  2. Fordham University School of Law graduates on the register20,418 living, 87.9% 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 20217,829 people admitted in 2021 are on the register, 1,820 of them through the First Department.
  6. Every registration that reads “Delinquent”15,500 on the register file of Sep 29, 2026, by decade of admission.
  7. How to complain about a New York lawyerThe grievance committee for each county, and what it can do.

How to confirm it officially

For a statement of Matthew Patrick O’Brien’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 Matthew Patrick O’Brien in 2021. 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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