Mike Fanelli is a partner at RSM US LLP and leads the Financial Due Diligence practice within Deal Services. He is responsible for the strategy, go-to-market approach, and delivery of FDD services, working closely with cross-functional teams to support clients across the M&A lifecycle.

In addition, he serves as the New York Office Leader and Tri-State Market Leader for the firm’s Enterprise business, where he focuses on growth, market strategy, and integrated client service across audit, tax, and consulting.

Mike has nearly 20 years of experience advising clients on M&A transactions, with a primary focus on private equity. He brings a pragmatic, client-centered approach—aligning diligence insights with the broader investment thesis and post-close value creation priorities.

He has supported more than 500 transactions, advising on financial due diligence as well as coordinating broader capabilities across tax, technology, cyber, and analytics. His work is centered on helping clients make informed decisions and execute effectively throughout the deal lifecycle.

Prior to joining RSM, Mike worked in audit at a Big Four firm and served as a controller at a middle-market company, providing him with both advisory and operating perspectives.

He is actively involved in developing talent within the firm and contributes to industry dialogue on M&A topics through speaking engagements and forums.

• American Institute of Certified Public Accountants  
  
• Certified public accountant, New York
  

• Bachelor of Science, accounting, Binghamton University
• Associate of Science, business administration, Herkimer College