Rosemary Purtell

Rory Pheiffer works with clients to develop patent portfolios, domestically and abroad, that align with their business goals. He also counsels clients on patent opinion and product clearance matters, IP due diligence issues on the buyer and seller side, license negotiations, and trademark portfolio growth and enforcement in conjunction with building the client’s brand. Clients rely on Rory’s technical knowledge, which he honed while earning a degree in mechanical engineering from ...

Keerthi Sugumaran is a lawyer recognized by Best Lawyers in the practice area of Litigation - Labor and Employment. Keerthi practices law in Boston, Massachusetts Best Lawyers has recognized Keerthi Sugumaran since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Keerthi Sugumaran is held by other lawyers.

Deidre J. Johnson is a lawyer recognized by Best Lawyers in the practice area of Antitrust Law. Deidre J. practices law in Boston, Massachusetts Best Lawyers has recognized Deidre J. Johnson since 2016. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Deidre J. Johnson is held by other lawyers.

Mike Sartor is a corporate partner in the Boston office of Kirkland & Ellis LLP. Mike focuses on representing private equity sponsors as well as public and private companies in connection with mergers and acquisitions. Mike also has substantial experience representing private equity firms in their fund formation activities and strategic transactions and representing public and private companies in general corporate law matters. Representative clients include 3i Group plc, Cerberus Capital...

Leigh Gilligan is a lawyer recognized by Best Lawyers in the practice area of Environmental Law. Leigh practices law in Boston, Massachusetts Best Lawyers has recognized Leigh Gilligan since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Leigh Gilligan is held by other lawyers.

Ms. Vanderzanden is a Shareholder in the Boston Office. She has specialized in the area of labor and employment law for nearly 20 years. She devotes her practice to helping employers with employment related disputes, conducting investigations, providing counseling and handling disputes in litigation and arbitration. She has personally conducted dozens of investigations, including investigations involving employee allegations of misconduct by company executives and systemic discrimination. She...

Bridget F. Schley is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. Bridget F. practices law in Boston, Massachusetts Best Lawyers has recognized Bridget F. Schley since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Bridget F. Schley is held by other lawyers.

Audrey Poore Joyce is a lawyer recognized by Best Lawyers in the practice area of Personal Injury Litigation - Plaintiffs. Audrey Poore practices law in Boston, Massachusetts Best Lawyers has recognized Audrey Poore Joyce since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Audrey Poore Joyce is held by other lawyers.

Victor G. Milione is a partner and serves as the Practice Group Leader for the Financial Restructuring & Bankruptcy group and as a member of the firm’s litigation, real estate and business departments. Mr. Milione has over 27 years of extensive experience representing various parties in insolvency work throughout the country and internationally. What do you focus on? Today I focus my practice on counseling the nation’s leading real estate financing and investment firms with mu...

Michael A. Leon is a lawyer recognized by Best Lawyers in the practice area of Environmental Law. Michael A. practices law in Boston, Massachusetts Best Lawyers has recognized Michael A. Leon since 1995. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael A. Leon is held by other lawyers.