Christopher D. Mathieu

Christopher D. Mathieu is an Associate Attorney at Hagen Wilka & Archer LLP in Sioux Falls. Chris focuses on civil litigation, corporate and commercial law, and real estate. He represents companies and individuals in legal disputes and commercial transactions and also works on business entity law, general business transactions, mergers and acquisitions, and commercial real estate matters. His practice combines dispute resolution with transactional support for business clients.

Chris received a B.A. from Augustana University in 2016 and a J.D. from the University of South Dakota School of Law in 2021. His education provided a foundation in legal analysis, advocacy, business law, and transaction planning. That training supports his ability to evaluate commercial issues from both litigation and transactional perspectives, helping clients identify legal risks, structure arrangements, and respond effectively when disputes develop.

Chris advises clients across a range of business and civil matters, including business entity organization, general business transactions, mergers and acquisitions, commercial real estate, and civil litigation. His work with both companies and individuals requires attention to contracts, ownership structures, property issues, and contested claims. By working across several related practice areas, he can help clients address legal needs that develop at different stages of a business relationship or transaction.

Christopher D. Mathieu is admitted to practice in South Dakota and is a member of the State Bar of South Dakota. Chris brings a broad early-career practice to Hagen Wilka & Archer, with experience that connects litigation, corporate work, and real estate. His approach supports clients who need clear legal analysis and practical solutions in disputes and transactions, particularly when business decisions and legal obligations overlap.

Law Office Affiliations

• Attorney, Hagen, Wilka & Archer, LLP
• Member, State Bar of South Dakota

Licensed State

• South Dakota

Education

• University of South Dakota School of Law
  Juris Doctor (JD)
• Augustana University
  Bachelor of Arts (BA)

Awards & Badges