Lawrence Benjamin Buttenwieser
On the New York attorney register since 1956 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1039007
- Admitted
- 1956 · First Department
- Status
- Currently registered
- Next registration
- Jan 2028
Lawrence Benjamin Buttenwieser is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1956 in the First Department, with an office in New York, NY. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Lawrence Benjamin Buttenwieser has filed the biennial registration the court system requires; the next one is due in Jan 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
240 other attorneys list Katten Muchin Rosenman LLP or one of its other names as their employer on the register; 0 of them were admitted before 1956, and 175 of the 241 give an office in New York, NY. The 5 whose admission is closest to 1956, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Mal Livingston Barasch | 1957 | Currently registered |
| Arnold Israel Roth | 1957 | Currently registered |
| Robert E. Smith | 1960 | Due to re‑register |
| Milton J. Kain | 1961 | Currently registered |
| Donald Henry Siskind | 1963 | 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
Lawrence Benjamin Buttenwieser studied at Yale Law School (the register spells it “YALE UNIVERSITY”). 89 of its 5,039 living graduates on the register were admitted in the 1950s, as Lawrence Benjamin Buttenwieser was.
- Same law school
- 5,039living graduates; 85.8% 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, 37 were admitted before 1956 and 93,547 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 Katten Muchin Rosenman LLP241 on the register, 0 of the others admitted before 1956; 175 of the 241 give an office in New York, NY.
- Yale Law School graduates on the register5,039 living, 85.8% 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 19561,325 people admitted in 1956 are on the register, 417 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 Lawrence Benjamin Buttenwieser’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 Lawrence Benjamin Buttenwieser in 1956. 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).