New York attorney record · Judicial Dept 1
Deborah Mason Lefkowitz
Case Western Reserve University alumna, admitted to the New York bar in 2009, registered office in New York, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2009
- Admitted
- 17
- Years in bar
- 4682480
- NY reg #
The record in one line
Deborah Mason Lefkowitz has held an active New York bar license for 17 years - admitted in 2009, longer-tenured than 38% of the state's currently-active attorneys.
- 17 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #45355 of 93,608
- by tenure in New York office peers
- Law school
- Case Western Reserve University
Data updated September 2026
What this profile tells you
Bar status & tenure
Deborah Mason Lefkowitz carries New York bar registration 4682480, an established, active practitioner in good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Allvue Systems, located in New York, NY (New York County), ZIP 10018. 1 other attorney shares this firm affiliation in the registry. Educational background: CASE WESTERN RESERVE UNIVERSITY (326 registered alumni).
State context & due diligence
With an established practice on record, Deborah Mason Lefkowitz remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
Deborah Mason Lefkowitz was admitted in 2009, giving 17 years on the New York register.
17 years on the New York bar
Years since admission, all currently-active NY attorneys
17 Top 62% higher than 38% 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 New York, NY office peers
Deborah Mason Lefkowitz's 17-year NY register tenure places mid-pack in New York, NY: rank #45,355 of 93,608 office peers (48th percentile). See the New York attorney directory .
- Local rank
- #45,355
- City cohort
- 93,608
- Local percentile
- 48th
- Admitted
- 2009
Nearest tenure peers in New York
- Charles Richard Abbate admitted 2009 · 17 yr
- Alexander Abraham Abdo admitted 2009 · 17 yr
- Muhseen Waliyullah Abdoolraman admitted 2009 · 17 yr
- Zachary Joshua Abella admitted 2009 · 17 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.
How Deborah compares to fellow Case Western Reserve University alumni
Among the 230 Case Western Reserve University graduates in the New York register, Deborah Mason Lefkowitz is longer-tenured than 23%.
17 years vs. Case Western Reserve University alumni
Years since admission - 230 NY-registered alumni of this school
17 Top 77% higher than 23% of 230 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 · September 2026
Case Western Reserve University's active-bar rate
Of Case Western Reserve University's 326 alumni in the New York register, 71.5% currently hold "Currently registered" status, above the statewide average.
The 2009 admission class today
Of the 10,203 attorneys admitted to the New York bar in 2009, 87.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4682480
- Year Admitted
- 2009 (17 yrs · senior)
- Judicial Department
- 1
- Next Registration
- Apr 2027
Location & Contact
- Company
- Allvue Systems
- City
- New York, NY
- County
- New York
- ZIP Code
- 10018
- Phone
- (646) 452-5456
Education
Status Distribution Across the New York Bar
Deborah Mason Lefkowitz'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.
Same firm affiliation: Allvue Systems
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure Case Western Reserve University alumni
Fellow alumni on the NY register whose admission year is closest to 2009 (excluding same-firm colleagues above).
Same admission year (2009), other cities
NY-registered attorneys admitted in 2009 whose listed office city differs from New York, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Deborah Mason Lefkowitz: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~93,609 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2009)
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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Compare attorneys →Before you rely on this record
Deborah Mason Lefkowitz'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 Lefkowitz licensed?
Deborah Lefkowitz is licensed to practice law in New York.
When was Deborah Mason Lefkowitz admitted to the bar?
Deborah Mason Lefkowitz was admitted to the bar in 2009.
Where did Deborah Mason Lefkowitz go to law school?
Deborah Mason Lefkowitz attended CASE WESTERN RESERVE UNIVERSITY.
What company does Deborah Mason Lefkowitz work for?
Deborah Mason Lefkowitz is associated with Allvue Systems in New York, NY.
Is Deborah Mason Lefkowitz in good standing?
Yes, Deborah Mason Lefkowitz 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.