John Matthew Conlon
On the New York attorney register since 1991 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 2428217
- Admitted
- 1991 · First Department
- Status
- Currently registered
- Next registration
- Nov 2027
John Matthew Conlon is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1991 in the First Department, with an office in New York, NY; next registration due Nov 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 John Matthew Conlon has filed the biennial registration the court system requires; the next one is due in Nov 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
491 other attorneys list Mayer Brown LLP or one of its other names as their employer on the register; 34 of them were admitted before 1991, and 305 of the 492 give an office in New York, NY. The 5 whose admission is closest to 1991, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Jeffrey Phillip Cantrell | 1990 | Delinquent |
| Yoshihide Ito | 1991 | Currently registered |
| Scott M. Zemser | 1991 | Currently registered |
| Jeremiah A. De Berry | 1992 | Currently registered |
| Masahisa Ikeda | 1992 | 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
John Matthew Conlon studied at Fordham University School of Law (the register spells it “FORDHAM”). 3,687 of its 20,418 living graduates on the register were admitted in the 1990s, as John Matthew Conlon 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, 15,047 were admitted before 1991 and 77,397 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 Mayer Brown LLP492 on the register, 34 of the others admitted before 1991; 305 of the 492 give an office in New York, NY.
- Fordham University School of Law graduates on the register20,418 living, 87.9% registered.
- Attorneys with an office in New York, NY93,604 living registrants give an office there.
- New York County’s registered bar75,989 currently registered, 46.63 per 1,000 residents.
- Admitted in 19916,456 people admitted in 1991 are on the register, 2,205 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 John Matthew Conlon’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 John Matthew Conlon in 1991. 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).