Kristine M. Osentoski

Stephen Reynolds (CIPP/US, CISSP) advises some of the largest companies in the world on complex data security and privacy matters. A former computer programmer and IT analyst, Stephen is uniquely able to use his computer background to the advantage of his clients in matters involving data security, privacy, artificial intelligence and computer forensic investigations. He assists with responding to cybersecurity incidents, such as ransomware attacks, fund transfer fraud, data breaches and busi...

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...

Nick is of counsel in the firm’s Securities Litigation & Regulatory practice group. A trial lawyer with 40 years of experience, he defends financial services firms and their employees in securities matters all over the country. Nick’s practice encompasses the full range of investor-based disputes and regulatory enforcement proceedings, as well as disputes arising out of employment practices in the financial services industry. He also handles internal investigations and investi...

Trisha M. Rich is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Trisha M., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Trisha M. is held by other top lawyers in the same geographic and legal practice area.

Michael J. Baum is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Michael J., who practices law in Chicago, Illinois, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael J. is held by other top lawyers in the same geographic and legal practice area.

Michael J. Sorich is a veteran trial attorney and partner at Cavanagh Sorich Law Group with a track record of securing outstanding results in personal injury, medical malpractice and wrongful death cases. Sorich brings more than two decades of trial experience to his practice and has obtained more than $300 million in verdicts and settlements for clients in Illinois and across the country since joining the firm in 2016. He has played a key role in many of the firm’s biggest and most hig...

Diana Z. Bowman is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Diana Z., who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diana Z. is held by other top lawyers in the same geographic and legal practice area.

Paul is counsel in the Litigation & Disputes practice group. He concentrates his practice on complex commercial litigation and insurance recovery for policyholders. Paul has obtained multimillion-dollar recoveries on behalf of clients under a variety of insurance policies, including general liability, first-party property, professional liability, and directors & officers insurance. Paul is ranked in Chambers USA in the field of Insurance: Dispute Resolution and is a member of the Amer...

Stephanie advises on complex tax issues, investment structures, acquisitions and sales of special assets, trust and probate administration and charitable giving. She serves as a fiduciary consultant on litigation matters for corporate fiduciaries and interfamily disputes. Stephanie also represents taxpayers on contested tax matters, including federal and state audits and administrative appeals. Stephanie’s clients include high net worth individuals, family offices and corporate fiduciar...

Sherry L. Rollo counsels clients in all areas of intellectual property, including the protection, licensing, and enforcement of intellectual property rights, data privacy, and data security both domestically and internationally. Sherry also guides clients with corporate strategies relating to the prosecution, merger, licensing, sale, or acquisition of intellectual property assets, including conducting due diligence, counseling on business strategies, and managing patent, trademark, copyright,...