Overview
Mark assists clients in a range of employee benefits matters, including legal compliance, transaction due diligence, and executive compensation. He brings a multifaceted, big picture outlook to helping clients unravel the challenges of complex benefits-related problems. He has also established a strong track record in achieving successful outcomes for clients confronted by employee benefits litigation and arbitration claims.
Mark’s practice focus includes:
- Plan compliance under the Internal Revenue Code and ERISA
- Handling the employee benefits aspects of mergers and acquisitions
- Drafting qualified and non-qualified employee benefit plans
- Drafting executive incentive arrangements
- Preparing participant communications such as summary plan descriptions
- Correcting plan failures in accordance with IRS Employee Plans Compliance Resolution System (EPCRS) procedures
- Addressing multiemployer plan and withdrawal liability issues
- Affordable Care Act (ACA) compliance
- Resolving both IRS and Department of Labor audits of qualified retirement plans
Experience
Solutions in action
- Counseling multiple buyer-side and seller-side corporate clients on employee benefits transaction due diligence
- Resolving an IRS audit of a financial services client’s retirement plan
- Successfully defending a retirement plan services company against multi-party litigation claims regarding the administration of retirement plan tax compliance
- Successfully resolving a U.S. Department of Labor investigation into a mechanical contracting client’s retirement plan
- Advising a manufacturing client on an internal benefits consolidation involving the merger of controlled group retirement plans
- Successfully resolving the arbitration of a union pension plan liability matter on behalf of a food processing company client
- Obtaining IRS correction approval of qualified retirement plan compliance failures for multiple companies
Credentials
- University of Michigan, Doctor of Philosophy (Ph.D.), History, 2011
- Cornell Law School, Master of Laws (LL.M.), International and Comparative Law, 2010
- Cornell Law School, Juris Doctor (J.D.), 2010
- University of Michigan, Master of Arts (M.A.), History, 2008
- University of London, Master of Arts (M.A.), Warburg Institute, 2003, with distinction
- Martin Luther College, Bachelor of Arts (B.A.), Liberal Arts, 2000, with high distinction
- Wisconsin
- Illinois
- United States Supreme Court
- United States Court of Appeals, Federal Circuit
- United States Court of Appeals, Seventh Circuit
- United States District Court, Eastern District of Wisconsin
- United States District Court, Western District of Wisconsin
- Best Lawyers®, Employment Benefits (ERISA) Law, 2027
- Best Lawyers®, “Ones to Watch” (Milwaukee Area), Employee Benefits (ERISA) Law, 2025
- German
Engagement
- Former Chair, Employee Benefits Section, Milwaukee Bar Association
- Member, American Bar Association
- Fellow, American Bar Foundation
- Co-Chair, Qualified Plans Committee (Real Property, Trust and Estate Law Section), American Bar Association, 2025-2026
Insights

Michael Best Attorneys Earn Recognition in The Best Lawyers in America 2027 List
Michael Best is proud to announce that 150 attorneys have been selected to The Best Lawyers in America 2027 list, with representation across 52 different practice areas across the nation. In addition, the firm is also excited to share that six attorneys have been named to the 2027 edition of the “Lawyer of the Year” list, which is a prestigious designation of a single lawyer in each specific practice area and location. 33 attorneys have also been named to the Best Lawyers: Ones to Watch 2027 list.Read
Aug 20, 2026

Michael Best Represents Fiddleheads Coffee in Successful Sale
Fiddleheads Coffee Roasters, Wisconsin’s family-owned roastery and café brand founded in 1996, has joined FairWave Specialty Coffee Collective through an acquisition closed on December 31.Read
Jan 26, 2026

Michael Best Advises Domain Outdoor in Successful Sale
Michael Best advised Domain Outdoor, a rapidly growing developer and distributor of wildlife food plot seed, feed, attractants, and nutritional supplements, in its recent sale to Allen Company, a leading manufacturer of outdoor products and accessories.Read
Jan 14, 2026
