New York attorney record · Judicial Dept 3
Jeffrey Michael Brennan
Suny Buffalo Law School alumna, admitted to the New York bar in 1998, registered office in Glendale Heights, IL. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1998
- Admitted
- 28
- Years in bar
- 2891067
- NY reg #
The record in one line
With 28 years on the register since a 1998 admission, Jeffrey Michael Brennan ranks among the New York bar's most senior active practitioners, longer-tenured than 61% of the currently-active bar.
- 28 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 39%
- by tenure among active NY attorneys
- Law school
- Suny Buffalo Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 2891067 with the New York bar authority has long belonged to Jeffrey Michael Brennan, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under One Stop Mailing LLC Dba Osm Worldwide, located in Glendale Heights, IL, ZIP 60139. Educational background: SUNY Buffalo Law School (3,453 registered alumni).
State context & due diligence
After 28 years on the register, Jeffrey Michael Brennan still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Jeffrey Michael Brennan's 28 years since admission in 1998. The histogram plots that tenure against every currently-active attorney in the state.
28 years on the New York bar
Years since admission, all currently-active NY attorneys
28 Top 39% higher than 61% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. 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
How Jeffrey compares to fellow Suny Buffalo Law School alumni
Among the 2,517 Suny Buffalo Law School graduates in the New York register, Jeffrey Michael Brennan is longer-tenured than 91% - a school-cohort view of experience, alongside the statewide one above.
28 years vs. Suny Buffalo Law School alumni
Years since admission - 2,517 NY-registered alumni of this school
28 Top 9% higher than 91% of 2,517 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
Suny Buffalo Law School's active-bar rate
Of Suny Buffalo Law School's 3,453 alumni in the New York register, 83.7% currently hold "Currently registered" status, above the statewide average.
Suny Buffalo Law School alumni, active-bar rate
The 1998 admission class today
Of the 7,302 attorneys admitted to the New York bar in 1998, 62.8% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2891067
- Year Admitted
- 1998 (28 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Mar 2028
Location & Contact
- Company
- One Stop Mailing LLC Dba Osm Worldwide
- City
- Glendale Heights, IL
- ZIP Code
- 60139
- Phone
- (203) 808-8976
Education
Status Distribution Across the New York Bar
Jeffrey Michael Brennan's current status, "Currently registered", places this attorney in 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.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Glendale Heights, IL
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Compare Jeffrey Michael Brennan with similar attorneys in Glendale Heights.
Compare attorneys →Before you rely on this record
Jeffrey Michael Brennan's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Jeffrey Brennan licensed?
Jeffrey Brennan is licensed to practice law in New York.
When was Jeffrey Michael Brennan admitted to the bar?
Jeffrey Michael Brennan's admission to the New York bar dates back to 1998.
Where did Jeffrey Michael Brennan go to law school?
Jeffrey Michael Brennan attended SUNY Buffalo Law School.
What company does Jeffrey Michael Brennan work for?
Jeffrey Michael Brennan is associated with One Stop Mailing LLC Dba Osm Worldwide in Glendale Heights, IL.
Is Jeffrey Michael Brennan in good standing?
Yes, Jeffrey Michael Brennan holds active bar status ("Currently registered").
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.