Dan graduated from Southern Illinois University in 1973 with a Bachelor's Degree in Mathematics. He returned to school at Olivet Nazarene University and graduated cum laude with a Bachelor's Degree in Accounting in 1977.

Dan previously worked three years with the Illinois Department of Revenue as a Revenue Auditor. In January 1982, he joined Arthur Young & Company in Amarillo, Texas; he was transferred to Arthur Young's Chicago office in August 1986. He joined Lemna & Company, in June 1987, which in 1992 merged into Nykiel, Carlin & Co. In 2006, Nykiel, Carlin & Co. merged into Clifton Gunderson LLP. On December 1, 2008, the Kankakee Office of Clifton Gunderson separated from Clifton Gunderson and formed Borschnack, Pelletier & Co. Dan currently serves as the managing partner of Borschnack, Pelletier & Co.

Dan passed the CPA Exam in May 1980. He is a member of the AICPA and the Illinois CPA Society and is licensed by the State of Illinois.