Managing Principal of the Griffing Group with 30 years of experience providing valuation opinions and expert testimony for a variety of purposes, including bankruptcy, corporate transactions, ESOPs, estate and gift tax disputes, fairness and solvency opinions, shareholder disputes, and tax restructuring. Have provided expert valuation services and testimony in a variety of jurisdictions including U.S. Bankruptcy Court, U.S. District Court, and the Delaware Court of Chancery. Contributing author to eight business valuation textbooks and have lectured extensively and presented numerous advanced education seminars on the topics of business valuation. International Past President of the American Society of Appraisers (ASA). Adjunct Professor of Finance at the Graduate School of Business at DePaul University, former Finance Instructor at Northwestern University, and a Business Valuation Instructor for the ASA. Former member of the International Valuation Standards Council Advisory Forum.