Attorneys in Oak Brook, IL

17 registered attorneys

Source: NY Office of Court Administration, attorney registration dataset via data.ny.gov.

Oak Brook, IL - local register slice

Rank #9 of 40IL cities by NY office-row count.

Admission years on file: 1977–2021 (median 2002) across 17 dated rows. Longest-tenured listed office peers: Barry A. Jasilli (1977) , Mark Adam Chudzinski (1982) , Robert A. Ras (1982) .

Oak Brook's register footprint

Oak Brook, IL concentrates in Currently registered (76% of 17 rows; status mix index 6,194).

Among school-named rows, University Of Hong Kong alone is 33% (school mix index 3,333).

Mix index is HHI×10,000 on OCA status shares and on school-named rows. Distinct from the statewide rank line above.

All (17) Currently registered (13) Suspended, delinquent (3) Due to reregister within 30 days of birthday (1)

Register status - Oak Brook

office rows

What this shows 13 Currently registered of 17.

Source NY OCA Attorney Registrations via data.ny.gov As of 2026-08-06
Name Status
Mark Anthony Vajdik Due to reregister within 30 days of birthday

Showing 1–1 of 1 attorneys with status Due to reregister within 30 days of birthday

Oak Brook's nearest office-count peers

Cities nearest Oak Brook on NY office-row count (17).

Bloomington, IL 17 (tie) Naperville, IL 17 (tie) North Chicago, IL 18 (delta 1) Rolling Meadows, IL 16 (delta 1) Highland Park, IL 15 (delta 2)

Source: NY Office of Court Administration via data.ny.gov - attorney registration counts.

Read our methodology - how this data is sourced, computed, and verified.