New York attorney record · Judicial Dept 3
Martin John Costello
University Of Minnesota alumna, admitted to the New York bar in 2006, registered office in Minneapolis, MN. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2006
- Admitted
- 20
- Years in bar
- 4431946
- NY reg #
The record in one line
Martin John Costello appears in the New York attorney register with a current status of "Due to reregister within 30 days of birthday", on record since 2006 - an administrative designation rather than discipline, but confirm current standing with the state bar.
- 20 yrs
- since first admission to the bar
- Pending-renewal
- current bar status: "Due to reregister within 30 days of birthday"
- Law school
- University Of Minnesota
Data updated May 2026
What this profile tells you
Bar status & tenure
Martin John Costello is registered as bar number 4431946 with the New York bar authority, carrying a current status of "Due to reregister within 30 days of birthday", a routine periodic-renewal reminder, not discipline. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Martin J. Costello, located in Minneapolis, MN, ZIP 55406. Educational background: UNIVERSITY OF MINNESOTA (334 registered alumni).
State context & due diligence
A "Due to reregister within 30 days of birthday" status falls outside the New York bar's active cohort for now. The breakdown below shows what share of the register that represents.
How Martin compares to fellow University Of Minnesota alumni
Among the 266 University Of Minnesota graduates in the New York register, Martin John Costello is longer-tenured than 42% - a school-cohort view of experience, alongside the statewide one above.
20 years vs. University Of Minnesota alumni
Years since admission - 266 NY-registered alumni of this school
20 Top 58% higher than 42% of 266 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
University Of Minnesota's active-bar rate
Of University Of Minnesota's 334 alumni in the New York register, 61.1% currently hold "Currently registered" status, below the statewide average.
University Of Minnesota alumni, active-bar rate
The 2006 admission class today
Of the 8,638 attorneys admitted to the New York bar in 2006, 67.6% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Due to reregister within 30 days of birthday
- Registration Number
- 4431946
- Year Admitted
- 2006 (20 yrs · senior)
- Judicial Department
- 3
- Next Registration
- Mar 2026
Location & Contact
- Company
- Martin J. Costello
- City
- Minneapolis, MN
- ZIP Code
- 55406
- Phone
- (612) 499-9012
Education
Status Distribution Across the New York Bar
Martin John Costello's current status, "Due to reregister within 30 days of birthday", places this record outside the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
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Martin John Costello is currently listed as "Due to reregister within 30 days of birthday", treat that as a registration fact to confirm, not a verdict on quality.
Frequently Asked Questions
Where is Martin Costello licensed?
Martin Costello is licensed to practice law in New York.
When was Martin John Costello admitted to the bar?
Martin John Costello was admitted to the bar in 2006.
Where did Martin John Costello go to law school?
Martin John Costello attended UNIVERSITY OF MINNESOTA.
What company does Martin John Costello work for?
Martin John Costello is associated with Martin J. Costello in Minneapolis, MN.
Is Martin John Costello in good standing?
Not currently, Martin John Costello's listed status is "Due to reregister within 30 days of birthday", not active standing. Confirm current status with the state bar.
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.