Ron Nahass

Principal, Enterprise Account Leader

About Ron

RSM US LLP’s Ron Nahass is a collaborative and strategic growth advisor for family offices, business/fund owners and ultrahigh net worth clients. His empathetic approach to understanding the needs of our clients comes from a deep background in financial consulting including valuation, forensics and dispute advisory services. He is regularly retained on behalf of various clients and counsel regarding high-profile commercial disputes, complex financial transactions, fraud and other advisory services. As an enterprise account leader, Ron works to align RSM’s people, processes and advisory solutions to better serve strategic financial intermediaries and private client relationships.


Ron’s family history includes a tradition of independently owned businesses. As such, he has a particular affinity for entrepreneurial-minded individuals—and the unique challenges and demands they face. Ronald’s experience includes the following but not limited to; assisting clients and counsel in navigating complex commercial litigation and forensic investigations regarding contractual disputes, intellectual property, commercial damages and other fact-finding and consultative analyses. He has led corporate investigations and forensic engagements, as well as analyzed an organization’s books and records, tracing funds, reconstructing financial records, identifying misappropriated assets or funds across many industries.

Additionally, Ron has prepared forensic reports for use by client management, boards of trustees, special committees of the board, fiduciary counsel, governmental agencies and insurance companies. Also he has prepared expert reports for use in state and federal courts, the Delaware Chancery Court and various alternative dispute resolution forums.

Ron has honed his skills in estimating the value of business enterprises, equity, debt, derivative securities, intangible assets for private and public companies of varying sizes and complexity.

He provides significant experience regarding financial modeling, data analytics and simulation analysis, including model review/validation, custom model build, scenario and simulation analysis.

Ron has also completed consulting assignments for many purposes, including financial and tax reporting, mergers and acquisitions, shareholder and other contractual disputes, marital dissolution, stock options and more.

Professional Affiliations and Designations

  • Accredited senior appraiser, American Society of Appraisers
  • Certified fraud examiner, Association of Certified Fraud Examiners


  • Master of Business Administration, finance and data analytics, New York University
  • Bachelor of Arts, business and government, Franklin & Marshall College