New York Administrators

Adrienne Boán - Chief Financial Officer - Headshot
Adrienne Boán - Chief Financial Officer

Adrienne Boán is the Chief Financial Officer at Simpson Thacher. Adrienne has been with the Firm since 2005. Adrienne was formerly Director of Finance at another major law firm and prior to that, Tax Manager at Ernst & Young.

Adrienne received her J.D. from Fordham University School of Law and her B.S. in Accounting from the University of New Orleans. She is a certified public accountant.

Sarah M. Bricknell - Global Director of Professional Responsibility and Risk Management - Headshot
Sarah M. Bricknell - Global Director of Professional Responsibility and Risk Management

Sarah Bricknell is the Global Director of Professional Responsibility & Risk Management at Simpson Thacher. 

Sarah received her J.D. from the University of Pennsylvania Law School and her B.A. from Franklin & Marshall College, and is admitted to practice in New York, California, New Jersey and Pennsylvania.

Danzey Burnham - Chief of Global Business Development - Headshot
Danzey Burnham - Chief of Global Business Development

Danzey Burnham is Chief of Global Business Development at Simpson Thacher and has been in this role since 2008. Danzey was previously an Associate in the Firm’s Corporate Department where she worked in both the London and New York offices.

Danzey received her J.D. from Yale Law School and her B.S. from Birmingham-Southern College where she was a member of Phi Beta Kappa.

Anne Callender - Director of Corporate Business Development - Headshot
Anne Callender - Director of Corporate Business Development

Anne Callender is a Director in the Business Development Department at Simpson Thacher where she focuses on the corporate practice. Anne was previously in-house legal counsel at Time Warner Inc. and prior to that, an Associate in Simpson Thacher’s Corporate Department.

Anne received her J.D. from the New York University School of Law and her B.S. from Georgetown University.

 

Amy Claydon - Director of Legal Recruiting Analytics - Headshot
Amy Claydon - Director of Legal Recruiting Analytics

Amy Claydon is the Director of Legal Recruiting Analytics at Simpson Thacher, where she is responsible for leveraging technology and using data to enhance the recruiting process and summer associate program across the Firm. Amy has been with the Firm since 2002.

Amy received her B.A. from Western State Colorado University.

 

Josephine Crupi - Director of IT Operations - Headshot
Josephine Crupi - Director of IT Operations

Josephine Crupi is a Director of IT Operations at Simpson Thacher. Josephine has been with the Firm since 1984. 

Josephine received her B.S. in Management of Information Systems from Bellevue University, Nebraska.

 

Michael Donnelly - Chief Information Officer - Headshot
Michael Donnelly - Chief Information Officer

Michael Donnelly is the Chief Information Officer at Simpson Thacher. Michael has been with the Firm since 2004 and establishes the Firm’s technology strategy, and also oversees information security, information technology operations and all other technology-related functions of the Firm.

Michael received his B.A. in computer science from La Salle University.

Eric Edelson - Chief Human Resources Officer  - Headshot
Eric Edelson - Chief Human Resources Officer Eric Edelson is the Chief Human Resources Officer at Simpson Thacher, managing both the human resources and benefits functions of the Firm. Eric has been with the Firm for over 35 years during which time he has served in a number of roles across the administrative departments.
Michael Hersch - Executive Director - Headshot
Michael Hersch - Executive Director

Michael Hersch is the Executive Director at Simpson Thacher where he is responsible for the administration of the Firm’s global operations. Michael has been with the Firm since 2001.

Prior to joining Simpson Thacher, Michael worked at McKinsey and Company for 11 years, most recently as the Director of Finance and Administration in the U.K. office. During his time at McKinsey, Michael served on several finance, technology, real estate and administrative committees. He also spent a year in New York working on a financial systems project for the firm.

Before joining McKinsey, Michael was a Partner in a chartered accounting firm in Sydney, Australia.

Michael received a Bachelor of Commerce from the University of New South Wales and is a Chartered Accountant.

Sean  Hughes - Tax Director  - Headshot
Sean Hughes - Tax Director

Sean Hughes is a Tax Director in the Accounting Department at Simpson Thacher. Sean has been with the Firm since 2008.

Sean received his M.S. in taxation from Seton Hall University and his B.A. in accounting from Richard Stockton College of New Jersey.

 

Edie  Jennings - Chief HR and Office Administration Officer - Headshot
Edie Jennings - Chief HR and Office Administration Officer

Edie Jennings is the Chief HR and Office Administration Officer at Simpson Thacher. Edie has 18 years of global human resources and administration experience. Prior to joining Simpson Thacher, Edie worked in human resources at General Electric for several years.

Edie is a graduate of Western State Colorado University.

Maria Kalogianis - Director of Billing and Collections - Headshot
Maria Kalogianis - Director of Billing and Collections

Maria Kalogianis is Director of Billing and Collections at Simpson Thacher, where she is responsible for overseeing the Firm’s global billing and collection functions. Maria has been with the Firm since 1999.

Maria received her B.A. from The College of New Rochelle. 

Michael Koehler - Chief Technology Officer  - Headshot
Michael Koehler - Chief Technology Officer

Michael Koehler is the Chief Technology Officer at Simpson Thacher, where he is responsible for technology standards and ensuring that the Firm’s information systems meet the Firm’s needs. Michael has been with the Firm since 1986.

Michael received his B.S. from Pace University, where he later worked as a System Administrator.

 

Cathleen Krautheim - Director of Legal Personnel and Professional Development - Headshot
Cathleen Krautheim - Director of Legal Personnel and Professional Development

Cathleen Krautheim is the Director of Legal Personnel and Professional Development at Simpson Thacher, where she focuses on the attorney review process, orientation and integration, policies and procedures. Cathleen has been with the Firm since 2008.

Cathleen received her B.A. from Seton Hall University.

Michelle Las - Director of Legal Recruiting  - Headshot
Michelle Las - Director of Legal Recruiting

Michelle Las is the Director of Legal Recruiting at Simpson Thacher, where she focuses on the management of attorney hiring and the summer associate recruiting program across the Firm. Michelle has been with the Firm since 2003. 

Michelle received her B.A. from Rutgers University.

Natalia  Martín - Director of Diversity  - Headshot
Natalia Martín - Director of Diversity

Natalia Martín is the Director of Diversity at Simpson Thacher. Natalia was previously an Associate in the Firm’s Corporate Department before serving first as an Assistant Dean and then as an Associate Dean at Yale Law School from 1991 to 2005. 

Natalia has also served as the Firm’s Director of Legal Personnel and Professional Development.

Natalia received her J.D. from Yale Law School and her A.B. from Harvard University.

Margaret Hensler Nicholls - Director of Business Development - Headshot
Margaret Hensler Nicholls - Director of Business Development

Margaret Nicholls is a Director in the Business Development Department at Simpson Thacher where she focuses on the corporate practice as well as operations. Margaret was previously an Associate in the Firm’s Corporate Department.

Margaret received her J.D. from Georgetown University Law Center and her B.S. from the University of Pennsylvania, Wharton School.

Kristin Nicoll - Director of Professional Responsibility & Risk Management - Headshot
Kristin Nicoll - Director of Professional Responsibility & Risk Management

Kristin Nicoll is Director of Professional Responsibility & Risk Management at Simpson Thacher.  Kristin has been with the Firm since 2007.  Prior to joining the Firm, Kristin was a corporate associate and worked on a variety of M&A, financing and general corporate matters. 

Kristin received her J.D. from Syracuse University and her B.Sc. from Cornell University, School of Industrial and Labor Relations. 

Tom Orewyler - Director of Communications - Headshot
Tom Orewyler - Director of Communications Tom Orewyler is the Director of Communications and senior team member in the Business Development Department at Simpson Thacher. Prior to joining Simpson Thacher, Tom worked in communications for another international law firm.

Tom received his J.D. from Pepperdine University School of Law and his B.A. from the University of California, Los Angeles.  
 
Susan Osnato - Chief of Legal Recruiting and Professional Development - Headshot
Susan Osnato - Chief of Legal Recruiting and Professional Development

Susan Osnato is Chief of Legal Recruiting and Professional Development at Simpson Thacher, where she leads the Firm’s global efforts on legal recruitment, talent development, training, evaluations, mentoring and integration.

Susan received her M.A. from Columbia University Teachers College and her B.A. from Washington and Lee University.

Florence  Ressegue - Director, Secretarial Services - Headshot
Florence Ressegue - Director, Secretarial Services

Florence Ressegue is the Director of Secretarial Services at Simpson Thacher. Florence has been with the Firm since 1975. 

Florence received her associate’s degree from Becker Junior College.

Brian Roe - Managing Attorney and Director of Managing Clerk’s Office - Headshot
Brian Roe - Managing Attorney and Director of Managing Clerk’s Office

Brian Roe is the Managing Attorney at Simpson Thacher and is Director of the Firm’s Managing Clerk’s office. Brian has been with the Firm since 2007.

Brian received his J.D. from Hofstra University and his B.Sc. from Florida State University.

Mark Rosenwasser - Director of Operations - Headshot
Mark Rosenwasser - Director of Operations

Mark Rosenwasser is the Director of Operations at Simpson Thacher, where he is responsible for security, facilities, construction, reception, conference services, food services, office services, procurement, duplicating, mailroom, messengers, records, taxi, travel, and other operations. Mark has been with the Firm since 2007.

Mark received his J.D. from Southern Methodist University Dedman School of Law and his B.A. from Skidmore College.

Barbara Soo Hoo - Director of Finance - Headshot
Barbara Soo Hoo - Director of Finance

Barbara Soo Hoo is Director of Finance at Simpson Thacher. Barbara has been with the Firm since 2008.

Barbara received her M.B.A. from Fordham University Graduate School of Business Administration and her B.S. from New York University.

Sheila Sterling - Director of Library  - Headshot
Sheila Sterling - Director of Library Sheila Sterling is the Director of Library at Simpson Thacher. Sheila received her M.S. from Columbia University and her B.A. from New York University.
Gretchen Wiener - Director of Business Development - Headshot
Gretchen Wiener - Director of Business Development

Gretchen Wiener is a Director in the Business Development Department where she focuses on the litigation practice. Prior to joining Simpson Thacher, she was in business development and marketing for two other international law firms. She began her career in client service in the technology, consumer and entertainment groups at Hill & Knowlton, Inc.

Gretchen received her B.A. in American Studies from Fordham University.

Back To Index