New York attorney record · Judicial Dept 2
Joanmarie Frances Koster
Washington College Of Law alumna, admitted to the New York bar in 1988, registered office in Stony Brook, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1988
- Admitted
- 38
- Years in bar
- 2171684
- NY reg #
The record in one line
With 38 years on the register since a 1988 admission, Joanmarie Frances Koster ranks among the New York bar's most senior active practitioners, longer-tenured than 79% of the currently-active bar.
- 38 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #16 of 71
- by tenure in Stony Brook office peers
- Law school
- Washington College Of Law
Data updated September 2026
What this profile tells you
Bar status & tenure
Registration 2171684 with the New York bar authority has long belonged to Joanmarie Frances Koster, 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 Joanmarie F. Koster, Esq., located in Stony Brook, NY (Suffolk County), ZIP 11790. Educational background: WASHINGTON COLLEGE OF LAW (148 registered alumni).
State context & due diligence
After 38 years on the register, Joanmarie Frances Koster 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 Joanmarie Frances Koster's 38 years since admission in 1988.
38 years on the New York bar
Years since admission, all currently-active NY attorneys
38 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 Stony Brook, NY office peers
Joanmarie Frances Koster is toward the newer end of Stony Brook, NY's NY register cohort: #16 of 71 by years since admission. See the Stony Brook attorney directory .
- Local rank
- #16
- City cohort
- 71
- Local percentile
- 21st
- Admitted
- 1988
Nearest tenure peers in Stony Brook
- John V. Soderberg admitted 1988 · 38 yr
- Maria Christine Ambrosio admitted 1987 · 39 yr
- Renaire Frierson-Davis admitted 1987 · 39 yr
- Tracy Ann Haas admitted 1987 · 39 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 Joanmarie compares to fellow Washington College Of Law alumni
Among the 117 Washington College Of Law graduates in the New York register, Joanmarie Frances Koster is longer-tenured than 66%.
38 years vs. Washington College Of Law alumni
Years since admission - 117 NY-registered alumni of this school
38 Top 34% higher than 66% of 117 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
Washington College Of Law's active-bar rate
Of Washington College Of Law's 148 alumni in the New York register, 59.5% currently hold "Currently registered" status, below the statewide average.
The 1988 admission class today
Of the 6,238 attorneys admitted to the New York bar in 1988, 56.7% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2171684
- Year Admitted
- 1988 (38 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Jul 2028
Location & Contact
- Company
- Joanmarie F. Koster, Esq.
- City
- Stony Brook, NY
- County
- Suffolk
- ZIP Code
- 11790
- Phone
- (631) 751-0415
Education
Status Distribution Across the New York Bar
Joanmarie Frances Koster'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 Washington College Of Law alumni
Fellow alumni on the NY register whose admission year is closest to 1988 (excluding same-firm colleagues above).
Same admission year (1988), other cities
NY-registered attorneys admitted in 1988 whose listed office city differs from Stony Brook, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Joanmarie Frances Koster: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~72 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1988)
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 Stony Brook, NY
Compare credentials side-by-side
Compare Joanmarie Frances Koster with similar attorneys in Stony Brook.
Compare attorneys →Before you rely on this record
Joanmarie Frances Koster'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 Joanmarie Koster licensed?
Joanmarie Koster is licensed to practice law in New York.
When was Joanmarie Frances Koster admitted to the bar?
Joanmarie Frances Koster's admission to the New York bar dates back to 1988.
Where did Joanmarie Frances Koster go to law school?
Joanmarie Frances Koster attended WASHINGTON COLLEGE OF LAW.
What company does Joanmarie Frances Koster work for?
Joanmarie Frances Koster is associated with Joanmarie F. Koster, Esq. in Stony Brook, NY.
Is Joanmarie Frances Koster in good standing?
Yes, Joanmarie Frances Koster 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.