Mark Lumsden

Mark Lumsden, CPA, serves as a Tax Principal at BDO USA since August 2020, leveraging extensive tax expertise to address complex tax issues for clients across various industries. Prior to this role, Mark was a Partner at ACM LLP from August 2012 until its merger with BDO USA in July 2020. Mark’s career includes experience as a Tax Manager at Graham & Company, P.C. and CBIZ MHM, LLC, where responsibilities spanned tax compliance, business consulting, and both audit and tax services. Mark holds a Bachelor of Science in Accounting and Economics from the University of Colorado Boulder, earned from 2000 to 2004.