Mark Lander Williams
On the New York attorney register since 2010 · office in Denver, CO
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4796611
- Admitted
- 2010 · Third Department
- Status
- Currently registered
- Next registration
- Jan 2028
Mark Lander Williams is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2010 in the Third Department, with an office in Denver, CO; next registration due Jan 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 Mark Lander Williams 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
The only other attorney who lists Williams & Serio or one of its other names:
| Attorney | Admitted | Status |
|---|---|---|
| Elizabeth Serio Williams | 2010 | Due 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
Mark Lander Williams studied at Georgetown University Law Center. 3,165 of its 11,562 living graduates on the register were admitted in the 2010s, as Mark Lander Williams was.
- Same law school
- 11,562living graduates; 87.9% registered (current or due), against 87.1% overall
- Office in Denver, CO
- 889living registrants (outside New York State)
Of the 889 living registrants with an office in Denver, CO, 439 were admitted before 2010 and 398 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
- Georgetown University Law Center graduates on the register11,562 living, 87.9% registered.
- New York-admitted attorneys in Denver, CO889 living registrants give an office there.
- Admitted in 201010,128 people admitted in 2010 are on the register, 3,925 of them through the Third 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 Mark Lander Williams’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 Mark Lander Williams in 2010. 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).