People

Stephen J. Mannhaupt, CPA, is a Partner and the Assurance & Attest Services Leader at Grassi. He has over 30 years of experience and specializes in public accounting, forensic accounting, auditing, and management consulting for clients in various industries, including Nonprofit, Architecture & Engineering, Professional Service, Construction, and Real Estate. Steve is responsible for the overall quality of the Accounting and Audit practice and leads Grassi’s Employee Benefit Plan practice.

Since beginning his career in 1990, Steve has provided expert guidance to clients in specialized areas such as sustainability, internal control assessment, fraud prevention and investigation, and corporate operational efficiency, in addition to traditional accounting, tax, and audit support.

Steve is also a member of Grassi’s Executive Committee, serving as the Chair of the Internal Accounting and Auditing Committee. In this role, Steve is responsible for ensuring the firm complies with professional standards and that the staff is current with the ever-changing accounting and auditing guidance. Additionally, Steve frequently provides formal continuing education (CPE) training programs for all levels of staff.

An expert in his field, Steve has written articles on a variety of accounting topics and conducted educational seminars for clients, accounting societies, and other professionals in banking, surety, and law. Steve is also an active presenter at the New York State Society of CPAs (NYCPA), the Foundation of Accounting Education (FAE), and the American Institute of Certified Public Accountants (AICPA).

As part of his charitable endeavors, Steve serves as treasurer on the board of directors of the ACE Mentor Foundation.

Steve received his degree from Queens College.