Mark Sheffield has extensive experience in the accounting and auditing field, currently serving as a Principal at Abbott, Stringham & Lynch since 1984, where prior experience includes a managerial role from 1981 to 1984. Previously, Mark Sheffield worked as a Senior Auditor at Arthur Andersen & Co. from 1977 to 1981. Mark Sheffield holds both a Bachelor of Science and a Master's degree in Accountancy from Brigham Young University, earned between 1973 and 1977.