RSM US LLP Names New Executive Leaders as Firm Enters Fiscal Year 2026

CHICAGO, May 1, 2025 /PRNewswire/ -- RSM US LLP ("RSM") – the leading provider of assurance, tax and consulting services for the middle market – recently announced new members of its executive leadership team (ELT) as part of its succession planning and to bring forward new perspectives as the firm continues to build its compelling, digital and global future.

• Sam Mascareno will succeed Bill Gorman as chief operating officer
• Brandon Rucker will succeed Joel Shamon as enterprise assurance leader
• Stuart (Stu) Taub will step into a new role as enterprise markets and industry leader
• Ericka Foster, first deputy general counsel, will join the ELT
• Rod Reimann, enterprise sales leader, will join the ELT
• Maria Severino, enterprise tax growth and industry leader and Canada tax leader, will join the ELT

"These leadership appointments position us to drive even greater impact for our clients, colleagues and firm," said Brian Becker, managing partner & CEO for RSM US LLP. "Each leader brings a unique perspective and deep understanding of our business, culture and the marketplace that reflects our longstanding commitment to the middle market as we continue to evolve to meet changing client needs and embrace our digitally connected future."

As chief operating officer, Mascareno will oversee enterprise operations and lead the execution of RSM's strategic priorities across the U.S., Canada, India and El Salvador. A member of the firm's executive team since 2017, he previously served as enterprise markets leader and West region leader where he drove significant growth and enhanced experiences for RSM's clients and talent. Mascareno delivers results through the combination of his pragmatic, data-driven approach to operating the business and his innate ability to engage and inspire people in pursuit of RSM's purpose to instill confidence in a world of change. (Bio)

As enterprise assurance leader, Rucker will be responsible for the leadership and management of the assurance line of business, including strategy development and execution. He most recently served as assurance operations leader and chair of the RSM US LLP Board of Directors. With experience across local and enterprise-level assurance operations—including financial strategy, performance measurement and alignment with firm goals—Rucker brings deep knowledge in risk and financial operations to the role. He is committed to strengthening RSM's culture as a foundation for continued success. (Bio)

As enterprise industry and markets leader, Taub oversees the execution of the firm's growth and culture objectives across all markets and the development of the firm's overall industry strategy. He previously held key roles including Tri-state market leader, New York City office leader and national real estate industry leader. Taub brings a unique blend of market and industry leadership, supporting integrated growth strategies and go-to-market execution. He has advised clients across many sectors and business structures. (Bio)

As first deputy general counsel, Foster is responsible for the operations of the general counsel's office and helps lead a team of experienced attorneys advising on a broad range of firm-wide legal matters. Prior to joining RSM in 2012, Foster served as an attorney at several international law firms where she advised clients on significant litigation and employment law matters. She is a trusted advisor who provides key strategic legal guidance to ensure RSM continues to deliver best-in-class service to clients at the highest levels of professional and ethical standards. (Bio)

As enterprise sales leader, Reimann leads a team of business developers, account managers and strategic business relationship leaders that generate more than $1B in revenues annually for RSM. Passionate about innovation and technology, he is pioneering the use of artificial intelligence in RSM's sales process. Reimann also takes an agile approach to developing other tools that allow go-to-market resources to become more efficient and effective as they engage current and prospective clients. (Bio)

As enterprise tax growth and industry leader and Canada tax leader, Severino drives strategic growth and fosters collaborative efforts focused on delivering comprehensive insights and innovative solutions that meet the evolving needs of the middle market. She also sets the vision and strategic direction for the tax practice in Canada. Severino's collaborative and authentic leadership style has been instrumental in the tremendous growth of the tax practice. She also plays an integral role in empowering and developing talent and the next generation of leaders. (Bio)

About RSM US LLP

RSM empowers middle market companies worldwide to take charge of change. The clients we serve are the engine of global commerce and economic growth. Our unique middle market perspective makes RSM the natural choice for growth-oriented, internationally active organizations seeking relevant insights and tailored, innovative solutions for a complex and changing world. With a global reach spanning more than 120 countries, we instill confidence in a world of change by bringing the full power of RSM to make a lasting impact on our clients, colleagues and communities. For more information, visit rsmus.com, like us on Facebook, follow us on X and/or connect with us on LinkedIn.

SOURCE RSM US LLP