New York attorney record · Judicial Dept 2
John Mark Guerriero
St. John'S Law alumna, admitted to the New York bar in 2000, registered office in New York, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 2000
- Admitted
- 26
- Years in bar
- 3062015
- NY reg #
The record in one line
John Mark Guerriero appears in the New York attorney register with a current status of "Due to reregister within 30 days of birthday", on record since 2000 - an administrative designation rather than discipline, but confirm current standing with the state bar.
- 26 yrs
- since first admission to the bar
- Pending-renewal
- current bar status: "Due to reregister within 30 days of birthday"
- Law school
- St. John'S Law
Data updated May 2026
What this profile tells you
Bar status & tenure
John Mark Guerriero is registered as bar number 3062015 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 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Darger Errante Yavitz & Blau, located in New York, NY (New York County), ZIP 10016. 4 other attorneys share this firm affiliation in the registry. Educational background: ST. JOHN'S LAW (15 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.
St. John'S Law's active-bar rate
Of St. John'S Law's 15 alumni in the New York register, 60% currently hold "Currently registered" status, below the statewide average.
St. John'S Law alumni, active-bar rate
The 2000 admission class today
Of the 7,585 attorneys admitted to the New York bar in 2000, 63.6% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Due to reregister within 30 days of birthday
- Registration Number
- 3062015
- Year Admitted
- 2000 (26 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Mar 2026
Location & Contact
- Company
- Darger Errante Yavitz & Blau
- City
- New York, NY
- County
- New York
- ZIP Code
- 10016
- Phone
- (212) 452-5300
Education
Status Distribution Across the New York Bar
John Mark Guerriero'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.
Other Attorneys at Darger Errante Yavitz & Blau
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John Mark Guerriero 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 John Guerriero licensed?
John Guerriero is licensed to practice law in New York.
When was John Mark Guerriero admitted to the bar?
John Mark Guerriero's admission to the New York bar dates back to 2000.
Where did John Mark Guerriero go to law school?
John Mark Guerriero attended ST. JOHN'S LAW.
What company does John Mark Guerriero work for?
John Mark Guerriero is associated with Darger Errante Yavitz & Blau in New York, NY.
Is John Mark Guerriero in good standing?
Not currently, John Mark Guerriero'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.