New York attorney record · Judicial Dept 4
Serena Rhianne O'Dierno
Michigan State University College Of Law alumna, admitted to the New York bar in 2015, registered office in Amherst, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2015
- Admitted
- 11
- Years in bar
- 5297411
- NY reg #
The record in one line
Admitted in 2015, Serena Rhianne O'Dierno has built 11 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 11 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #151 of 189
- by tenure in Amherst office peers
- Law school
- Michigan State University College Of Law
Data updated August 2026
What this profile tells you
Bar status & tenure
Bar number 5297411 on the New York register belongs to Serena Rhianne O'Dierno, currently in active standing. Registration is recorded within Judicial Department 4, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Cohen Vaughan, located in Amherst, NY (Erie County), ZIP 14226. 5 other attorneys share this firm affiliation in the registry. Educational background: Michigan State University College of Law (351 registered alumni).
State context & due diligence
Serena Rhianne O'Dierno 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
11 years into an active New York practice since a 2015 admission, Serena Rhianne O'Dierno sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
11 years on the New York bar
Years since admission, all currently-active NY attorneys
11 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 · August 2026
Tenure among Amherst, NY office peers
In Amherst, NY's NY-registered cohort of 189, Serena Rhianne O'Dierno sits at local tenure rank #151 (79th percentile). See the Amherst attorney directory .
- Local rank
- #151
- City cohort
- 189
- Local percentile
- 79th
- Admitted
- 2015
Nearest tenure peers in Amherst
- Austin Robert Caster admitted 2015 · 11 yr
- Theodore Arthur Joerg admitted 2015 · 11 yr
- Samuel Robert Monin admitted 2015 · 11 yr
- Christopher Andrew Atkinson admitted 2014 · 12 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 Serena compares to fellow Michigan State University College Of Law alumni
Among the 298 Michigan State University College Of Law graduates in the New York register, Serena Rhianne O'Dierno is longer-tenured than 41%.
11 years vs. Michigan State University College Of Law alumni
Years since admission - 298 NY-registered alumni of this school
11 Top 59% higher than 41% of 298 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
Michigan State University College Of Law's active-bar rate
Of Michigan State University College Of Law's 351 alumni in the New York register, 84.3% currently hold "Currently registered" status, above the statewide average.
The 2015 admission class today
Of the 8,867 attorneys admitted to the New York bar in 2015, 93% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5297411
- Year Admitted
- 2015 (11 yrs · mid-career)
- Judicial Department
- 4
- Next Registration
- Jul 2027
Location & Contact
- Company
- Cohen Vaughan
- City
- Amherst, NY
- County
- Erie
- ZIP Code
- 14226
- Phone
- (716) 359-2964
Education
Status Distribution Across the New York Bar
Serena Rhianne O'Dierno'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: Cohen Vaughan
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Michigan State University College Of Law alumni
Fellow alumni on the NY register whose admission year is closest to 2015 (excluding same-firm colleagues above).
Same admission year (2015), other cities
NY-registered attorneys admitted in 2015 whose listed office city differs from Amherst, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Serena Rhianne O'Dierno: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~190 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2015)
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 Amherst, NY
Compare credentials side-by-side
Compare Serena Rhianne O'Dierno with similar attorneys in Amherst.
Compare attorneys →Before you rely on this record
Serena Rhianne O'Dierno'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 Serena O'Dierno licensed?
Serena O'Dierno is licensed to practice law in New York.
When was Serena Rhianne O'Dierno admitted to the bar?
Serena Rhianne O'Dierno has been on the New York bar register since 2015.
Where did Serena Rhianne O'Dierno go to law school?
Serena Rhianne O'Dierno attended Michigan State University College of Law.
What company does Serena Rhianne O'Dierno work for?
Serena Rhianne O'Dierno is associated with Cohen Vaughan in Amherst, NY.
Is Serena Rhianne O'Dierno in good standing?
Yes, Serena Rhianne O'Dierno 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.