New York attorney record · Judicial Dept 3
Mengni Cao
Washington University St. Louis School Of Law alumna, admitted to the New York bar in 2016, registered office in New York, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5424650
- NY reg #
The record in one line
Admitted in 2016, Mengni Cao has built 10 years of active New York practice - more tenure than 24% of the state's currently-active attorneys.
- 10 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 76%
- by tenure among active NY attorneys
- Law school
- Washington University St. Louis School Of Law
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5424650 on the New York register belongs to Mengni Cao, currently in active standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Mayer Brown LLP, located in New York, NY (New York County), ZIP 10020. 5 other attorneys share this firm affiliation in the registry. Educational background: Washington University St. Louis School of Law (876 registered alumni).
State context & due diligence
Mengni Cao 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, Mengni Cao 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 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 Mengni compares to fellow Washington University St. Louis School Of Law alumni
Among the 825 Washington University St. Louis School Of Law graduates in the New York register, Mengni Cao is longer-tenured than 65% - a school-cohort view of experience, alongside the statewide one above.
10 years vs. Washington University St. Louis School Of Law alumni
Years since admission - 825 NY-registered alumni of this school
10 Top 35% higher than 65% of 825 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
Washington University St. Louis School Of Law's active-bar rate
Of Washington University St. Louis School Of Law's 876 alumni in the New York register, 80% currently hold "Currently registered" status, above the statewide average.
Washington University St. Louis School Of Law alumni, active-bar rate
The 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.1% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5424650
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Feb 2028
Location & Contact
- Company
- Mayer Brown LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10020
- Phone
- (212) 506-2394
Status Distribution Across the New York Bar
Mengni Cao'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 Mayer Brown LLP
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Compare attorneys →Before you rely on this record
Mengni Cao'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 Mengni Cao licensed?
Mengni Cao is licensed to practice law in New York.
When was Mengni Cao admitted to the bar?
Mengni Cao has been on the New York bar register since 2016.
Where did Mengni Cao go to law school?
Mengni Cao attended Washington University St. Louis School of Law.
What company does Mengni Cao work for?
Mengni Cao is associated with Mayer Brown LLP in New York, NY.
Is Mengni Cao in good standing?
Yes, Mengni Cao 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.