As co-leader of Withum's Tax Controversy practice, Marcus has extensive experience in resolving federal, state and local tax controversies including, but not limited to, matters involving Tax Examinations, Appeals, Collections, Innocent Spouse, Responsible Party, and Offer-in-Compromise.

Ken is a leader in Withum’s Forensic and Valuation Services Group. His practice focuses on business disputes, bankruptcy, and criminal tax matters.  He has worked extensively with counsel and clients to understand the issues at hand, assist in difficult situations and provide guidance and expertise in financially compromised environments.   He has been involved with various professional organizations including the AICPA.