New York attorney record · Judicial Dept 2
Deborah Kooperstein
Cleveland Marshall alumna, admitted to the New York bar in 1985, registered office in Sayville, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1985
- Admitted
- 41
- Years in bar
- 2043933
- NY reg #
The record in one line
Deborah Kooperstein has spent 41 years on the register since admission in 1985, one of the longest-standing active practitioners the state bar carries at 86% tenure percentile.
- 41 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 14%
- by tenure among active NY attorneys
- Law school
- Cleveland Marshall
Data updated May 2026
What this profile tells you
Bar status & tenure
Deborah Kooperstein has carried New York bar registration 2043933 for the better part of a career, still active and in 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 Perillo Hill, located in Sayville, NY (Suffolk County), ZIP 11782. Educational background: CLEVELAND MARSHALL (96 registered alumni).
State context & due diligence
Across a career spanning 41 years, Deborah Kooperstein has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Deborah Kooperstein's 41 years since a 1985 admission places this record near the far edge of the statewide tenure curve below.
41 years on the New York bar
Years since admission, all currently-active NY attorneys
41 Top 14% higher than 86% 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 Deborah compares to fellow Cleveland Marshall alumni
Among the 86 Cleveland Marshall graduates in the New York register, Deborah Kooperstein is longer-tenured than 78% - a school-cohort view of experience, alongside the statewide one above.
41 years vs. Cleveland Marshall alumni
Years since admission - 86 NY-registered alumni of this school
41 Top 22% higher than 78% of 86 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
Cleveland Marshall's active-bar rate
Of Cleveland Marshall's 96 alumni in the New York register, 55.8% currently hold "Currently registered" status, below the statewide average.
Cleveland Marshall alumni, active-bar rate
The 1985 admission class today
Of the 6,046 attorneys admitted to the New York bar in 1985, 68.6% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2043933
- Year Admitted
- 1985 (41 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Oct 2027
Location & Contact
- Company
- Perillo Hill
- City
- Sayville, NY
- County
- Suffolk
- ZIP Code
- 11782
- Phone
- (631) 537-4601
Education
Status Distribution Across the New York Bar
Deborah Kooperstein'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.
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Compare attorneys →Before you rely on this record
Deborah Kooperstein'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 Deborah Kooperstein licensed?
Deborah Kooperstein is licensed to practice law in New York.
When was Deborah Kooperstein admitted to the bar?
Deborah Kooperstein's admission to the New York bar dates back to 1985.
Where did Deborah Kooperstein go to law school?
Deborah Kooperstein attended CLEVELAND MARSHALL.
What company does Deborah Kooperstein work for?
Deborah Kooperstein is associated with Perillo Hill in Sayville, NY.
Is Deborah Kooperstein in good standing?
Yes, Deborah Kooperstein 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.