Colleen Margaret Mallon Casse
On the New York attorney register since 2019 · office in Baltimore, MD
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5721071
- Admitted
- 2019 · Third Department
- Status
- Currently registered
- Next registration
- Aug 2027
Colleen Margaret Mallon Casse is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2019 in the Third Department, with an office in Baltimore, MD; next registration due Aug 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 Colleen Margaret Mallon Casse has filed the biennial registration the court system requires; the next one is due in Aug 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
236 other attorneys list Venable LLP or one of its other names as their employer on the register; 180 of them were admitted before 2019, and 11 of the 237 give an office in Baltimore, MD. The 5 whose admission is closest to 2019, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Teresa Marie Biviano | 2019 | Currently registered |
| Monica Chou | 2019 | Currently registered |
| Meriem El-Khattabi | 2019 | Currently registered |
| Isaac Kim | 2019 | Currently registered |
| Stephen Joseph Krachie | 2019 | 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
Colleen Margaret Mallon Casse studied at University of Maryland Francis King Carey School of Law (the register spells it “UNIVERSITY OF MARYLAND”). 294 of its 818 living graduates on the register were admitted in the 2010s, as Colleen Margaret Mallon Casse was.
- Same law school
- 818living graduates; 88.3% registered (current or due), against 87.1% overall
- Office in Baltimore, MD
- 534living registrants (outside New York State)
Of the 534 living registrants with an office in Baltimore, MD, 462 were admitted before 2019 and 51 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 Venable LLP237 on the register, 180 of the others admitted before 2019; 11 of the 237 give an office in Baltimore, MD.
- University of Maryland Francis King Carey School of Law graduates on the register818 living, 88.3% registered; 4 of them list Venable LLP.
- New York-admitted attorneys in Baltimore, MD534 living registrants give an office there.
- Admitted in 20198,536 people admitted in 2019 are on the register, 3,354 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 Colleen Margaret Mallon Casse’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 Colleen Margaret Mallon Casse in 2019. 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).