Introduction Duree Barton provides a wide variety of litigation oriented financial, accounting and economic services to attorneys and their clients, as it has since its formation in 1985. Courts and administrative bodies have recognized the firm's principals as experts in numerous business fields including accounting, auditing, finance, economics, statistics, lost profits analysis, product and service costing, business valuation, unjust enrichment, and resonable royalty. We have evaluated claims of more than $5 Billion and some in which claimed damages were less than $100,000. Engagements have ranged in size from less than 40 hours to more than 5,000 hours. We have been of service to clients of very limited resources and to several of the world's largest enterprises including: US West/Qwest, Amoco, Boeing, DuPont, Ford Motor Co., The Hopi Nation, McDonalds, Pentax, Texaco, United Gas Pipeline, IKON and The News Corporation. We have worked for both plaintiffs and defendants.