Dr. G. William (Bill) Kennedy, PH.D, CPA/ABV, is a managing director in the Disputes practice for Duff & Phelps in the Boston office. He has over thirty years of professional experience including serving as a partner with a Midwest regional CPA firm and holding managing director positions with global litigation consulting firms. For the past twenty years his practice has focused on business valuation, economic damages/lost profits, and litigation support services where he has testified in numerous State and Federal courts and before international arbitration tribunals.

Bill is a 2003 inductee into the AICPA Business Valuation Hall of Fame. He is the former Chair of both the AICPA ABV Credentials Committee and the AICPA ABV Examination Committee, he was also a member of the AICPA M&A Disputes Resolution Taskforce that authored the AICPA Practice Aid, Mergers and Acquisitions Disputes. He is currently a member of the American Society of Appraisers Business Valuation Review Editorial Review Board.

Dr. Kennedy has held various academic positions, including the rank of Associate Professor of Finance (with tenure). He currently serves as Adjunct Professor for the graduate accounting program at Florida Atlantic University where he teaches a course on Fair Value measurement. He is a frequent speaker on both valuation and statistics related topics at AICPA and ASA National Conferences. 

Dr. Kennedy has substantial doctoral level training in statistics and econometrics and has taught statistics at the college and university level. He has presented numerous sessions on the use of statistics and time series analysis in valuation and litigation support engagements at the AICPA Forensic and Valuation Services conferences and American Society of Appraisers Advanced Business Valuation conferences. He has recently co-authored a chapter on the use of statistics in litigation support engagements that will be included in an upcoming professional text on litigation support for financial experts. He has utilized sophisticated statistical and econometric methodologies and provided testimony on their use in litigation support engagements.

Bill has a Ph.D. in finance from Saint Louis University and a B.S. and M.A.S. in accounting from the University of Illinois. He is a CPA and holds the Accredited in Business Valuation (ABV) designation.

Representative Engagements

  • Provided testimony in an international arbitration regarding the use of event studies to quantify damages to a foreign listed company whose assets were seized by a sovereign nation.
  • Performed valuation analysis and provided testimony in a shareholder dispute regarding buy out of substantial common stock ownership interest.
  • Consulted with large private equity firm regarding potential damages from post-acquisition claim for breach of representation and warranties.
  • Provided valuation analysis and expert testimony on post-acquisition purchase price disputes.
  • Served as valuation expert and provided expert testimony for the shareholder class in a major class action suit regarding the acquisition of a publicly traded social media company and damages suffered by the selling shareholder class.
  • Provided testimony regarding the valuation of a gaming industry joint venture.
  • Performed valuation analysis and provided expert testimony regarding the valuation of an internet website.
  • Used event study methodology to identify and quantify changing sales patterns as a basis for quantifying lost profits (damages to company brand by adverse events and adverse publicity).
  • Provided testimony in bankruptcy court regarding the valuation of a series of corporations.
  • Provided expert testimony regarding the valuation of a minority ownership interest in a manufacturing company prior to its sale.
  • Provided consultation on the valuation of an internet enabled technology used in the agriculture industry.
  • Provided consultation on the valuation of ownership interest in the general partner entity of a large alternative asset management firm.
  • Provided testimony regarding the valuation of trade secrets.
  • Performed valuation analysis and provided expert testimony regarding the value of trade secrets and intellectual property of a development stage company in the energy industry.
  • Performed valuation analysis and provided expert testimony regarding the ownership interest in a privately held international oil trading company.
  • Provided expert testimony in bankruptcy court regarding the valuation of intellectual property and identifiable intangible assets.
  • Perform statistical analysis of customer buying patterns and provide testimony regarding quantification of lost sales and profits.
  • Provide consultation and expert witness services for the quantification of lost profit damages.
  • Provide rebuttal expert witness analysis and testimony on numerous matters involving valuation and damages.
  • Performed analysis and provided expert opinion and testimony as to the econometric and statistical analysis of property tax receipts of a governmental entity.
  • Retained by the U.S. Department of Justice to provide damage analysis and rebuttal expert testimony.


  • Certified Public Accountant, Accredited in Business Valuation (CPA/ABV)


  • B.S. in Accountancy, University of Illinois
  • Masters of Accounting Science (M.A.S.), University of Illinois
  • Ph.D. in Finance, Saint Louis University


  • American Institute of Certified Public Accountants (AICPA), Member
  • AICPA Forensic and Valuation Services (FVS) Section, Member
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