New York attorney record · Judicial Dept 2
Mark Aaron Lopeman
Columbia Law School alumna, admitted to the New York bar in 1991, registered office in Hastings On Hudson, 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
- 2404465
- NY reg #
The record in one line
With 35 years on the register since a 1991 admission, Mark Aaron Lopeman 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"
- #37 of 56
- by tenure in Hastings On Hudson office peers
- Law school
- Columbia Law School
Data updated August 2026
What this profile tells you
Bar status & tenure
Registration 2404465 with the New York bar authority has long belonged to Mark Aaron Lopeman, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Mark A. Lopeman, located in Hastings On Hudson, NY (Westchester County), ZIP 10706. Educational background: Columbia Law School (11,650 registered alumni).
State context & due diligence
After 35 years on the register, Mark Aaron Lopeman 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 Mark Aaron Lopeman'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 · August 2026
Tenure among Hastings On Hudson, NY office peers
Against Hastings On Hudson, NY's 56-attorney NY register cohort, Mark Aaron Lopeman lands at the 64th tenure percentile (rank #37). See the Hastings On Hudson attorney directory .
- Local rank
- #37
- City cohort
- 56
- Local percentile
- 64th
- Admitted
- 1991
Nearest tenure peers in Hastings On Hudson
- Karen Stacey Sonn admitted 1991 · 35 yr
- Lisa Joanne Daley admitted 1992 · 34 yr
- Nadine M. Logan admitted 1990 · 36 yr
- Rebecca Burns Weston admitted 1992 · 34 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 August 2026. Derived local rank, not published upstream.
How Mark compares to fellow Columbia Law School alumni
Among the 12,124 Columbia Law School graduates in the New York register, Mark Aaron Lopeman is longer-tenured than 99%.
35 years vs. Columbia Law School alumni
Years since admission - 12,124 NY-registered alumni of this school
35 Top 1% higher than 99% of 12,124 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 · August 2026
Columbia Law School's active-bar rate
Of Columbia Law School's 11,650 alumni in the New York register, 78.3% currently hold "Currently registered" status, above 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
- 2404465
- Year Admitted
- 1991 (35 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Dec 2027
Location & Contact
- Company
- Mark A. Lopeman
- County
- Westchester
- ZIP Code
- 10706
- Phone
- (914) 589-1249
Education
Status Distribution Across the New York Bar
Mark Aaron Lopeman'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 Columbia Law School 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 Hastings On Hudson, a vintage cohort, not a neighborhood list.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Hastings On Hudson, NY
Compare credentials side-by-side
Compare Mark Aaron Lopeman with similar attorneys in Hastings On Hudson.
Compare attorneys →Before you rely on this record
Mark Aaron Lopeman'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 Mark Lopeman licensed?
Mark Lopeman is licensed to practice law in New York.
When was Mark Aaron Lopeman admitted to the bar?
Mark Aaron Lopeman's admission to the New York bar dates back to 1991.
Where did Mark Aaron Lopeman go to law school?
Mark Aaron Lopeman attended Columbia Law School.
What company does Mark Aaron Lopeman work for?
Mark Aaron Lopeman is associated with Mark A. Lopeman in Hastings On Hudson, NY.
Is Mark Aaron Lopeman in good standing?
Yes, Mark Aaron Lopeman 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.