Marshall Gerstein's New Era: Rueth Takes Helm After 24-Year Legacy

CHICAGO, IL – April 22, 2026 – In a significant leadership transition for one of the nation's premier intellectual property law firms, Marshall, Gerstein & Borun LLP has announced the election of Randall (Randy) G. Rueth as its new Managing Partner. The change, effective April 13, 2026, marks the end of Jeffrey S. Sharp's distinguished 24-year tenure in the role, a period that saw the firm cement its status as an independent IP powerhouse.

Rueth, a veteran of the firm since 2000, steps into the top position from a deep background of internal leadership, signaling a strategy of continuity and evolution. The transition comes at a pivotal moment for the legal industry, as firms grapple with rapid technological advancements, a globalized innovation landscape, and shifting client expectations. For Marshall Gerstein, this planned succession is designed to leverage a legacy of stability while embracing the future of intellectual property law.

The Sharp Era: A Legacy of Growth and Independence

To understand the significance of the current transition, one must look at the foundation built over the last quarter-century. When Jeffrey S. Sharp took the helm, the legal landscape was vastly different. Over his 24 years as Managing Partner, he navigated Marshall Gerstein through market fluctuations, technological disruptions, and the dot-com bust and recovery, all while steadfastly preserving the firm's independence.

Under his leadership, the firm experienced remarkable growth, expanding to more than 110 lawyers and legal professionals. This expansion wasn't merely about headcount; it was a strategic scaling that established Marshall Gerstein as Chicago's largest independent intellectual property boutique. In an era where many specialized firms were absorbed by larger, full-service legal giants, Sharp championed a model focused exclusively on IP, betting that deep specialization would provide a decisive competitive advantage. The bet paid off, strengthening the firm's national reputation for handling sophisticated IP matters for a diverse clientele ranging from Fortune 100 companies and major research universities to nimble entrepreneurs.

Beyond the metrics, Sharp is widely credited with cultivating a distinct and durable firm culture. Colleagues point to an environment defined by collaboration, long-term retention, and a commitment to professional development. This culture has been a key factor in attracting and retaining top-tier talent with the highly specialized scientific and technical backgrounds required for modern IP law.

"Jeff has had an extraordinary impact on this firm, not only in its growth but in the culture he helped build," Rueth stated in the official announcement. "His leadership has created an environment where people can do their best work, and I'm honored to carry that forward."

A New Leader for a New Technological Age

Randy Rueth is not an outsider brought in to shake things up, but a seasoned insider whose career trajectory has prepared him for this moment. His background makes him uniquely suited to lead an IP firm in the current climate. Before earning his J.D. from DePaul University College of Law, Rueth was an electrical engineer at AT&T, where he earned both engineering and sales achievement awards. This blend of deep technical knowledge and business acumen has been a hallmark of his legal practice.

Since joining Marshall Gerstein in 2000 and becoming a partner in 2006, Rueth has focused his practice on the cutting edge of technology, including electronics, software, artificial intelligence (AI), FinTech, and e-commerce. His work involves not just securing patents but providing strategic counsel on building and managing global patent portfolios, navigating complex infringement issues, and conducting due diligence for high-stakes transactions. His consistent recognition by industry publications like Managing Intellectual Property and Intellectual Asset Management underscores his standing in the field.

His leadership path within the firm has been comprehensive. Having served for three years on the Executive Committee, Rueth has already been involved in top-level strategic decisions. He previously chaired the Electrical & Computer Technologies Practice Group, the Strategic Planning Committee, and the Finance Committee, giving him a holistic understanding of the firm's operational, financial, and strategic levers.

"I am honored to step into this role and to build on the strong foundation that Jeff and generations of firm leadership have created," Rueth said. "Marshall Gerstein's strength lies in its people, its deep technical expertise, and its singular focus on intellectual property. I look forward to working with our attorneys and staff to continue delivering exceptional value to our clients while investing in the firm's future."

Navigating the Evolving IP Landscape

The challenges and opportunities facing the intellectual property sector are more complex than ever. The rise of generative AI is raising fundamental questions about inventorship and copyright. The globalization of R&D requires firms to manage intricate international IP portfolios. Meanwhile, clients are demanding greater efficiency and cost-effectiveness, pushing firms to innovate in their service delivery.

Rueth's leadership of the Electrical & Computer Technologies Practice Group provides a window into his forward-looking approach. The group has been proactive in incorporating AI and machine learning tools to enhance the quality and efficiency of its work, a strategy that is likely to see broader implementation across the firm. This proactive stance on technology is not just about internal efficiency; it's about being able to expertly advise clients who are innovating in these very fields.

His expertise in areas like AI and FinTech aligns directly with the fastest-growing sectors of the global economy. As companies invest billions in developing new technologies, the need for sophisticated IP protection and strategic counsel becomes paramount. Rueth's firsthand experience in these domains positions Marshall Gerstein to continue its leadership in advising innovators.

The Boutique Advantage: Culture as Strategy

In his new role, Rueth is set to continue the strategy that has defined Marshall Gerstein: leveraging the advantages of an independent, specialized boutique. While large firms offer a broad range of services, boutiques like Marshall Gerstein offer unparalleled depth in their chosen field. This focus allows them to cultivate a roster of attorneys who are not just lawyers, but also scientists and engineers with advanced degrees, capable of understanding and protecting highly complex innovations.

The firm's culture of long-term retention is a critical component of this strategy. Low turnover means clients work with stable, experienced teams that have a deep understanding of their technology and business goals. This continuity, fostered by the professional development and collaborative environment that Sharp championed and Rueth has pledged to uphold, is a key differentiator in a competitive market.

As Marshall Gerstein moves into its next chapter, the transition from Sharp to Rueth appears to be a textbook example of successful succession planning. It represents a deliberate passing of the torch from one proven leader to another, ensuring the firm's core identity remains intact while equipping it to navigate the frontiers of law and technology. Rueth's leadership will be crucial in ensuring the firm not only adapts but continues to thrive in the complex and ever-changing world of intellectual property law.