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

Matthew Ross Mendelsohn

On the New York attorney register since 2006 · office in Roseland, NJ

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

Registration No.
4415915
Admitted
2006 · Third Department
Status
Currently registered
Next registration
Jun 2028

Matthew Ross Mendelsohn is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2006 in the Third Department, with an office in Roseland, NJ; next registration due Jun 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 Matthew Ross Mendelsohn has filed the biennial registration the court system requires; the next one is due in Jun 2028.

  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

8 other attorneys list Mazie Slater Katz & Freeman, LLC or one of its other names as their employer on the register; 3 of them were admitted before 2006, and all 9 give an office in Roseland, NJ. The 5 whose admission is closest to 2006, earliest first:

AttorneyAdmittedStatus
Eric David Katz1997Currently registered
Karen Gila Kelsen2009Currently registered
Adam Mark Epstein2011Currently registered
Cory Jordan Rothbort2014Currently registered
Michael Ronald Griffith2018Due to re‑register

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 Ross Mendelsohn studied at Seton Hall University School of Law (the register spells it “SETON HALL”). 1,955 of its 6,262 living graduates on the register were admitted in the 2000s, as Matthew Ross Mendelsohn was.

Same law school
6,262living graduates; 84.7% registered (current or due), against 87.1% overall
Office in Roseland, NJ
685living registrants (outside New York State)

Of the 685 living registrants with an office in Roseland, NJ, 323 were admitted before 2006 and 341 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. Seton Hall University School of Law graduates on the register6,262 living, 84.7% registered.
  2. New York-admitted attorneys in Roseland, NJ685 living registrants give an office there.
  3. Admitted in 20068,638 people admitted in 2006 are on the register, 2,950 of them through the Third Department.
  4. Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
  5. 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 Matthew Ross Mendelsohn’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 Matthew Ross Mendelsohn in 2006. 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).

How to check a lawyer, step by step