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Manager, Executive Assistant Support

Cornerstone Research
paid time off, relocation assistance
United States, New York, New York
599 Lexington Avenue (Show on map)
May 08, 2026

Role Overview:

If you enjoying leading a team, building relationships, and balancing the needs of busy senior executives and support staff, then we would like to meet with you!

The Manager, Executive Assistant (EA) Support, is responsible for managing the local Executive Assistant (EA) team in the New York office. This includes monitoring team coverage and workload, recruiting, onboarding and training new team members, managing performance, and making recommendations on salary, annual performance bonuses and promotion opportunities. The Manager, EA Support also oversees the daily management of invoicing and billing for the NY office. This position functions as a "working manager" and is expected to cover some executive assistant duties as needed.

At Cornerstone Research, you will be part of a thriving, 1,000-strong team that spans nine offices, comprises more than 55 nationalities, and leads the industry in its commitment to develop team members across all levels. Inc. Magazine has recognized Cornerstone Research three times as a Best Workplace for its outstanding employee engagement, collaborative culture, and professional growth opportunities.

You'll Love It Here If You:

  • Embrace learning and continuous improvement

  • Set and strive for a high bar of excellence

  • Believe that teamwork leads to success: ask us what it means to be #onefirmfirm!

  • Take pride in always doing your best work, even if it's harder or takes longer

  • Are passionate about what you do

How You'll Help Our Team Succeed:

  • Monitor EA team coverage and workload to ensure seamless and effective support of the New York office.

  • Oversee the daily management of all bills and invoices in the NY office by the EAs, streamlining processes, and ensuring all quotas are met for the month.

  • Manage EA performance by providing clear and timely feedback and guides development through coaching and mentoring.

  • Assist and collaborate with the Manager, Facilities and Administration (MFA) in assessing future EA support requirements and setting team goals to accommodate changing business needs.

  • Assess skills and provides training for new and existing team members in necessary software and project organization skills, as well as Cornerstone standards, systems, policies, and procedures.

  • Assist with the development and execution of administrative and consulting staff orientation and training. Participates in orientation for new hires in the NY office as it relates to their understanding of the EA role and how the EA operates generally within the firm.

  • Responsible for the development, update, and maintenance of training modules, guides and portal community documents for the administrative team.

  • Proactively manage the EA team's technical proficiency and professional output by leading firm-wide initiatives to standardize document management and visual protocols; responsible for auditing and enforcing these standards to ensure NY remains a center of operational excellence.

  • Assist with the development of budgets for administrative team training and retreats.

  • On occasion and as needed, the Manager, Executive Assistant Support may also cover some of the day-to-day EA duties including monthly billing duties, conflict checks, generating engagement letters, processing expense reports, and correspondence.

What You'll Need to Be Successful:

  • Minimum 8+ years of relevant legal administrative assistant experience in a law firm or professional services environment; including a minimum of 3 years' experience directly managing or supervising staff.

  • Experience with managing the invoice/billing process, assisting with conflict checks and generating engagement letters.

  • Advanced knowledge of Microsoft Office suite programs (Word, Excel, Outlook, PowerPoint, etc.).

  • Demonstrated ability to manage people and teams.

  • Experience developing, implementing and leading training for a variety of staff and teams.

  • Strong organizational and time management skills and excellent attention to detail.

  • Excellent written and oral communication skills.

  • Discretion with sensitive and confidential information is required.

  • Excellent interpersonal, diplomacy and conflict management/resolution skills.

  • Bachelor's degree preferred.

Cornerstone Research is offering a competitive market base salary for this position. The base salary range represents the low and high end of the salary range for this position in all eligible locations. This range may differ based on your geographic location and cost of living considerations. At Cornerstone Research, we believe compensation is more than just a base salary. We offer a competitive total compensation package that includes an annual performance bonus and comprehensive benefits such as flexible options for healthcare, paid time off, and retirement savings. Relocation assistance is not offered for this position.

New York: $101,100.00 - $139,800.00

We're looking for passionate individuals who share our firm's core values and can bring varied perspectives and experiences to our team.

Who We Are:

Cornerstone Research provides economic and financial analysis and expert testimony in all phases of commercial litigation and regulatory proceedings.

We work with a broad network of testifying experts, including leaders from academia and industry, who are recognized for their depth of knowledge, accomplishments, and research. Our staff consultants contribute expertise in economics, finance, accounting, and marketing, as well as business acumen, familiarity with the litigation process, and a commitment to produce outstanding results.

We're looking for passionate individuals who share our firm's core values and can bring varied perspectives and experiences to our team. The firm's uniquely collegial, supportive atmosphere makes Cornerstone Research a great place to work. We invest in our people in a host of ways, from providing meaningful learning and development opportunities to organizing memorable social events. To many, our culture and our people are the most exciting, enriching aspects of a Cornerstone Research career.

Equal Employment Opportunity:

Cornerstone Research provides Equal Employment Opportunities to all employees and applicants for employment without regard to legally protected categories, such as age, sex, gender, gender identity, race, color, creed/religious belief, medical condition, predisposing genetic characteristics or genetic information or testing, disability, marital status, pregnancy status, military status, veteran status, arrest or conviction record (except where permitted by law), sexual orientation, ethnic background, citizen status, ancestry, national origin, or any other consideration protected by federal, state or local law.

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