New York attorney record · Judicial Dept 2
Cassandre Marie Plantin
American University alumna, admitted to the New York bar in 2016, registered office in Garden City, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5405113
- NY reg #
The record in one line
Admitted in 2016, Cassandre Marie Plantin has built 10 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 10 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #1804 of 2,095
- by tenure in Garden City office peers
- Law school
- American University
Data updated September 2026
What this profile tells you
Bar status & tenure
Bar number 5405113 on the New York register belongs to Cassandre Marie Plantin, currently in active 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 Law Offices Of Seidner & Associates, PC, located in Garden City, NY (Nassau County), ZIP 11530. 1 other attorney shares this firm affiliation in the registry. Educational background: AMERICAN UNIVERSITY.
State context & due diligence
Cassandre Marie Plantin is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
10 years into an active New York practice since a 2016 admission, Cassandre Marie Plantin sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
10 years on the New York bar
Years since admission, all currently-active NY attorneys
10 Top 75% higher than 25% 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 Garden City, NY office peers
Among the 2,095 NY-registered attorneys with a listed office in Garden City, NY, Cassandre Marie Plantin ranks #1,804 by tenure, longer-tenured than 86% of that city cohort. See the Garden City attorney directory .
- Local rank
- #1,804
- City cohort
- 2,095
- Local percentile
- 86th
- Admitted
- 2016
Nearest tenure peers in Garden City
- Melissa Diana Alcoba admitted 2016 · 10 yr
- Catherine Nicole Aponte admitted 2016 · 10 yr
- Alexandria Theresa Awad admitted 2016 · 10 yr
- Mariya S. Campbell admitted 2016 · 10 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 Cassandre compares to fellow American University alumni
Among the 638 American University graduates in the New York register, Cassandre Marie Plantin is longer-tenured than 4%.
10 years vs. American University alumni
Years since admission - 638 NY-registered alumni of this school
10 Top 96% higher than 4% of 638 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
The 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5405113
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 2
- Next Registration
- Nov 2026
Location & Contact
- Company
- Law Offices Of Seidner & Associates, PC
- City
- Garden City, NY
- County
- Nassau
- ZIP Code
- 11530
- Phone
- (516) 345-9900
Education
AMERICAN UNIVERSITY
Status Distribution Across the New York Bar
Cassandre Marie Plantin'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: Law Offices Of Seidner & Associates, PC
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 American University alumni
Fellow alumni on the NY register whose admission year is closest to 2016 (excluding same-firm colleagues above).
Same admission year (2016), other cities
NY-registered attorneys admitted in 2016 whose listed office city differs from Garden City, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Cassandre Marie Plantin: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~2,096 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2016)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Garden City, NY
Compare credentials side-by-side
Compare Cassandre Marie Plantin with similar attorneys in Garden City.
Compare attorneys →Before you rely on this record
Cassandre Marie Plantin'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 Cassandre Plantin licensed?
Cassandre Plantin is licensed to practice law in New York.
When was Cassandre Marie Plantin admitted to the bar?
Cassandre Marie Plantin has been on the New York bar register since 2016.
Where did Cassandre Marie Plantin go to law school?
Cassandre Marie Plantin attended AMERICAN UNIVERSITY.
What company does Cassandre Marie Plantin work for?
Cassandre Marie Plantin is associated with Law Offices Of Seidner & Associates, PC in Garden City, NY.
Is Cassandre Marie Plantin in good standing?
Yes, Cassandre Marie Plantin 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.