New York attorney record · Judicial Dept 1
Mark Diehl Sullivan
Pace alumna, admitted to the New York bar in 1998, registered office in Wilson, WY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1998
- Admitted
- 28
- Years in bar
- 2897049
- NY reg #
The record in one line
Mark Diehl Sullivan carries a "Suspended, delinquent" status on the New York bar register, on record since 1998 - confirm the exact standing and any discipline history directly with the state bar before engaging.
- 28 yrs
- since first admission to the bar
- Suspended
- current bar status: "Suspended, delinquent"
- #6 of 8
- by tenure in Wilson office peers
- Law school
- Pace
Data updated September 2026
What this profile tells you
Bar status & tenure
Mark Diehl Sullivan is registered as bar number 2897049 with the New York bar authority, carrying a current status of "Suspended, delinquent", suspended or delinquent, verify terms with the bar before engaging. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Mark D. Sullivan, P.C., located in Wilson, WY, ZIP 83014. Educational background: PACE.
State context & due diligence
A "Suspended, delinquent" status falls outside the New York bar's active cohort. The breakdown below shows what share of the register that represents, and how to verify current standing directly with the state bar.
Tenure among Wilson, WY office peers
In the small Wilson, WY cohort (8 with admission years), Mark Diehl Sullivan ranks #6 by tenure. See the Wilson attorney directory .
- Local rank
- #6
- City cohort
- 8
- Local percentile
- 63rd
- Admitted
- 1998
Nearest tenure peers in Wilson
- Garrett Adam Lynch admitted 2003 · 23 yr
- Susan Finch Moore admitted 2009 · 17 yr
- Laura Palma admitted 1985 · 41 yr
- John P. Carey Iii admitted 1984 · 42 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 Mark compares to fellow Pace alumni
Among the 457 Pace graduates in the New York register, Mark Diehl Sullivan is longer-tenured than 33%.
28 years vs. Pace alumni
Years since admission - 457 NY-registered alumni of this school
28 Top 67% higher than 33% of 457 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 1998 admission class today
Of the 7,302 attorneys admitted to the New York bar in 1998, 62.9% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Suspended, delinquent
- Registration Number
- 2897049
- Year Admitted
- 1998 (28 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Feb 2026
Location & Contact
- Company
- Mark D. Sullivan, P.C.
- City
- Wilson, WY
- ZIP Code
- 83014
- Phone
- (307) 733-2021
Education
PACE
Status Distribution Across the New York Bar
Mark Diehl Sullivan's current status, "Suspended, delinquent", places this record outside 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 Pace alumni
Fellow alumni on the NY register whose admission year is closest to 1998 (excluding same-firm colleagues above).
Same admission year (1998), other cities
NY-registered attorneys admitted in 1998 whose listed office city differs from Wilson, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Out-of-state NY bar peers for Mark Diehl Sullivan with the closest admission year to 1998. Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
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 Wilson, WY
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Compare Mark Diehl Sullivan with similar attorneys in Wilson.
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Mark Diehl Sullivan carries a "Suspended, delinquent" status. Verify the exact scope and dates of this action directly with the state bar before acting on it.
Frequently Asked Questions
Where is Mark Sullivan licensed?
Mark Sullivan is licensed to practice law in New York.
When was Mark Diehl Sullivan admitted to the bar?
Mark Diehl Sullivan's admission to the New York bar dates back to 1998.
Where did Mark Diehl Sullivan go to law school?
Mark Diehl Sullivan attended PACE.
What company does Mark Diehl Sullivan work for?
Mark Diehl Sullivan is associated with Mark D. Sullivan, P.C. in Wilson, WY.
Is Mark Diehl Sullivan in good standing?
No, Mark Diehl Sullivan carries a "Suspended, delinquent" status, not active standing. Confirm the exact scope directly with the state bar before engaging.
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.