Meagan P. VanderWeele

John O’Neil’s legal knowledge, business savvy, and leadership of complex transactions have earned him a reputation as a global leader in private equity fund matters. John heads the Investment Funds Practice Group, the Firm’s leading-edge global platform that provides innovative and bespoke legal strategies to sponsors and funds of all kinds. John is also a member of the Firm's Executive Committee. John has been recognized by Chamber’s Global, Chambers USA, IFLR 1000, L...

A former chief patent counsel to a Fortune 500 communications company with deep first chair trial experience, Thomas Pasternak focuses his practice on patent, trademark, and trade secret litigation, licensing, and prosecution. He protects and defends his clients’ intellectual property rights in district courts throughout the United States, the International Trade Commission (ITC), the Patent Trial and Appeal Board (PTAB), and the Federal Circuit and Seventh Circuit Courts of Appeal. He ...

Patrick P. Devine is a top attorney recognized by Best Lawyers in the practice area(s) of Professional Malpractice Law - Defendants. Patrick P., who practices law in Schererville, Indiana, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick P. is held by other top lawyers in the same geographic and legal practice area.

Annemarie Tarara is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law Mediation. Annemarie, who practices law in Lake Forest, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Annemarie is held by other top lawyers in the same geographic and legal practice area.

Mark Filip, a former federal judge and high-ranking Justice Department official, helps to lead Kirkland’s government enforcement defense and internal investigations group, and serves as a member of the Firm’s Executive Committee. As a partner in the Firm’s Chicago and Washington, D.C. offices, Mark has successfully guided numerous Fortune 100 companies and financial institutions through complex mission-critical moments, counseling leaders and Boards of Directors on high-stak...

Amy Andrews is an experienced commercial litigator who focuses her practice on financial and complex commercial litigation for businesses large and small. Inquisitive by nature, she prides herself on developing a deep understanding of the business needs of her clients and diligently solving their legal issues, whether in or out of the courtroom. Amy has considerable experience representing a diverse portfolio of clients in complex litigation matters in federal and state courts nationwide. Wit...

Louis S. Harrison has long been recognized as one of the premier estate planning attorneys in the country. A founding partner of Harrison & Held, LLP – one of the nation’s most elite estate planning firms – Lou’s practice encompasses all aspects of trust and estate planning, including estate and business planning for closely held companies. In addition to individuals in need of sophisticated planning, Lou represents numerous family offices, public figures, CEOs of ...

Ken has resolved coverage issues involving an alphabet soup of insurance policies, including CGL, D&O, E&O, EPLI, PLL and WC/EL, as well as first-party property policies, crime bonds and surety bonds. He offers a deep understanding of loss-sensitive insurance programs, having litigated disputes involving workers’ compensation claim handling and deductible and retrospective premium billing. Ken also works in the trenches of product liability, professional liability and commercial...

Gary Gassman focuses his practice in the areas of insurance coverage counseling and litigation and is co-chair of the firm’s Professional Liability Practice Group. For more than 20 years, his practice has been concentrated on management liability including directors and officers and entity liability, employment practices liability, fiduciary liability, and various types of professional liability and commercial general liability coverage. He also has significant reinsurance experience. G...

Mr. del Hierro is a partner in the Corporate Practice Group of Kirkland & Ellis and heads our bank regulatory practice. He has more than 30 years of experience in representing banks and bank holding companies, thrifts and thrift holding companies, payments and fintech companies, investment banks and institutional lenders in connection with regulatory issues relating to capital formation transactions, mergers and acquisitions and complex financings. He has significant experience representi...