New York attorney record · Judicial Dept 1
Catherine Ella Sum
University Of Toronto alumna, admitted to the New York bar in 2013, registered office in Palo Alto, CA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2013
- Admitted
- 13
- Years in bar
- 5097761
- NY reg #
The record in one line
Admitted in 2013, Catherine Ella Sum has built 13 years of active New York practice - more tenure than 24% of the state's currently-active attorneys.
- 13 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 76%
- by tenure among active NY attorneys
- Law school
- University Of Toronto
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5097761 on the New York register belongs to Catherine Ella Sum, currently in active 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 Ropes & Gray LLP, located in Palo Alto, CA, ZIP 94301. 5 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY OF TORONTO (523 registered alumni).
State context & due diligence
Catherine Ella Sum 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
13 years into an active New York practice since a 2013 admission, Catherine Ella Sum sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
13 years on the New York bar
Years since admission, all currently-active NY attorneys
13 Top 76% higher than 24% of 284,296 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 · May 2026
How Catherine compares to fellow University Of Toronto alumni
Among the 350 University Of Toronto graduates in the New York register, Catherine Ella Sum is longer-tenured than 8% - a school-cohort view of experience, alongside the statewide one above.
13 years vs. University Of Toronto alumni
Years since admission - 350 NY-registered alumni of this school
13 Top 92% higher than 8% of 350 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 · May 2026
University Of Toronto's active-bar rate
Of University Of Toronto's 523 alumni in the New York register, 76.3% currently hold "Currently registered" status, above the statewide average.
University Of Toronto alumni, active-bar rate
The 2013 admission class today
Of the 10,251 attorneys admitted to the New York bar in 2013, 87.8% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5097761
- Year Admitted
- 2013 (13 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Oct 2027
Location & Contact
- Company
- Ropes & Gray LLP
- City
- Palo Alto, CA
- ZIP Code
- 94301
- Phone
- (650) 617-4945
Education
Status Distribution Across the New York Bar
Catherine Ella Sum's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-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.
Other Attorneys at Ropes & Gray LLP
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Palo Alto, CA
Compare credentials side-by-side
Compare Catherine Ella Sum with similar attorneys in Palo Alto.
Compare attorneys →Before you rely on this record
Catherine Ella Sum'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 Catherine Sum licensed?
Catherine Sum is licensed to practice law in New York.
When was Catherine Ella Sum admitted to the bar?
Catherine Ella Sum has been on the New York bar register since 2013.
Where did Catherine Ella Sum go to law school?
Catherine Ella Sum attended UNIVERSITY OF TORONTO.
What company does Catherine Ella Sum work for?
Catherine Ella Sum is associated with Ropes & Gray LLP in Palo Alto, CA.
Is Catherine Ella Sum in good standing?
Yes, Catherine Ella Sum holds active bar status ("Currently registered").
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.