David Duffus

P: 412.697.6404

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Pittsburgh Office
4 Gateway Center
444 Liberty Ave., Ste. 1800
Pittsburgh, PA 15222-1223
P: 412.697.6400
F: 412.697.6499

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David is a partner in the firm’s Forensic, Litigation and Valuation Services group where he specializes in working on complex litigation services, forensic accounting and valuation services assignments. His current responsibilities include assignment planning, supervision of staff, performing analyses, discovery assistance, and expert testimony. Responsibilities are carried out through financial and forensic analysis of: financial statements and tax returns; general ledgers and other original books of entry; relevant contracts and agreements; and industry data.

Since 1992, he has specialized in providing accounting and consulting services to businesses ranging from start-up entities to Fortune 100 companies. Prior to joining ParenteBeard, he spent eight years with a Big Four accounting firm. His previous work experience also includes positions at both a regional accounting and boutique consulting firm. He has worked extensively with counsel through all phases of the litigation process and has provided expert witness and deposition testimony in matters in state and federal court, and in alternative dispute settings.

Representative assignments on which he has worked include:

  • Bankruptcy and troubled company issues
  • Construction disputes
  • Economic damage claims
  • Fraud and forensic investigations
  • Healthcare fraud and abuse
  • Insurance claims
  • Intellectual property claims
  • Professional liability
  • Real estate disputes
  • Shareholder/Partnership disputes
  • Tax disputes

David currently serves on the AICPA’s Economic Damages Task Force. He has spoken before numerous professional groups on topics relating to economic damages, business valuation and fraud. His education has been supplemented by various continuing education courses offered by a variety of professional organizations. In addition, David has published several articles addressing construction damage issues and fraud.

David is a graduate of ParenteBeard’s internal leadership development program, Leadership, Entrepreneurism and Achievement at ParenteBeard (LEAP). LEAP was developed as a collaboration of firm executives and representatives of The Pennsylvania State University and is a customized program designed to build the core business skills of partners and managers. LEAP is an intensive three-year program designed to provide team members with valuable insight on topics such as strategic leadership and relationship building.


  • Certified Public Accountant in Pennsylvania
  • Accredited in Business Valuation
  • Certified in Financial Forensics
  • Certified Fraud Examiner
  • BA – Economics/Political Science, University of Pittsburgh
  • MBA – Accounting/Finance, University of Pittsburgh

Professional Affiliations

  • American Institute of Certified Public Accountants
  • Pennsylvania Institute of Certified Public Accountants
  • Association of Certified Fraud Examiners