New York attorney record · Judicial Dept 3
Denis Eugene Mc Guinness
Texas Tech University alumna, admitted to the New York bar in 1991, registered office in White Plains, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1991
- Admitted
- 35
- Years in bar
- 2438075
- NY reg #
The record in one line
With 35 years on the register since a 1991 admission, Denis Eugene Mc Guinness ranks among the New York bar's most senior active practitioners, longer-tenured than 79% of the currently-active bar.
- 35 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #1020 of 3,330
- by tenure in White Plains office peers
- Law school
- Texas Tech University
Data updated September 2026
What this profile tells you
Bar status & tenure
Registration 2438075 with the New York bar authority has long belonged to Denis Eugene Mc Guinness, 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 O'Connor, Mcguinness, Conte, Doyle, Oleson, Watson And Loftus, LLP, located in White Plains, NY (Westchester County), ZIP 10601. Educational background: TEXAS TECH UNIVERSITY (16 registered alumni).
State context & due diligence
After 35 years on the register, Denis Eugene Mc Guinness 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 Denis Eugene Mc Guinness's 35 years since admission in 1991.
35 years on the New York bar
Years since admission, all currently-active NY attorneys
35 Top 21% higher than 79% of 290,787 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 · September 2026
Tenure among White Plains, NY office peers
Denis Eugene Mc Guinness is earlier in the White Plains, NY office cohort than most peers: local tenure rank #1,020 of 3,330 (31st percentile). See the White Plains attorney directory .
- Local rank
- #1,020
- City cohort
- 3,330
- Local percentile
- 31st
- Admitted
- 1991
Nearest tenure peers in White Plains
- Kenneth P. Addeo admitted 1991 · 35 yr
- Tami Sue Altschiller admitted 1991 · 35 yr
- Paul G. Amicucci admitted 1991 · 35 yr
- Jonathan Alan Bath admitted 1991 · 35 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
Texas Tech University's active-bar rate
Of Texas Tech University's 16 alumni in the New York register, 56.3% currently hold "Currently registered" status, below the statewide average.
The 1991 admission class today
Of the 6,456 attorneys admitted to the New York bar in 1991, 75.3% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2438075
- Year Admitted
- 1991 (35 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Jul 2027
Location & Contact
- Company
- O'Connor, Mcguinness, Conte, Doyle, Oleson, Watson And Loftus, LLP
- City
- White Plains, NY
- County
- Westchester
- ZIP Code
- 10601
- Phone
- (914) 948-4500
Education
Status Distribution Across the New York Bar
Denis Eugene Mc Guinness's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-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.
Near-tenure Texas Tech University alumni
Fellow alumni on the NY register whose admission year is closest to 1991 (excluding same-firm colleagues above).
Same admission year (1991), other cities
NY-registered attorneys admitted in 1991 whose listed office city differs from White Plains, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Denis Eugene Mc Guinness: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~3,331 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1991)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Denis Eugene Mc Guinness'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 Denis Mc Guinness licensed?
Denis Mc Guinness is licensed to practice law in New York.
When was Denis Eugene Mc Guinness admitted to the bar?
Denis Eugene Mc Guinness's admission to the New York bar dates back to 1991.
Where did Denis Eugene Mc Guinness go to law school?
Denis Eugene Mc Guinness attended TEXAS TECH UNIVERSITY.
What company does Denis Eugene Mc Guinness work for?
Denis Eugene Mc Guinness is associated with O'Connor, Mcguinness, Conte, Doyle, Oleson, Watson And Loftus, LLP in White Plains, NY.
Is Denis Eugene Mc Guinness in good standing?
Yes, Denis Eugene Mc Guinness holds active bar status ("Currently registered").
Cite this page & disclosure
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.