established 1891

Alex joined the firm in August 2011 after completing a clerkship with the Honorable Roger L. Wollman of the Eighth Circuit, U.S. Court of Appeals.  Alex concentrates primarily in civil and commercial litigation and appellate work and has a growing transactional practice.  He has been selected by Super Lawyers to the Great Plains Rising Stars list in 2018-2020.  Alex has appeared in state and federal courts in a wide range of matters, including complex commercial litigation, trademark disputes, trust litigation, constitutional challenges,  defamation, contract disputes, ERISA litigation, partnership and entity disputes, products liability, and professional liability.    


Reported Cases

  • Hallberg v. S.D Board of Regents, 937 N.W.2d 568 (S.D. 2019)
  • Mace v. Willis, 897 F.3d 926 (8th Cir. 2018)
  • Yeti Coolers v. JDS Industries, 300 F. Supp. 3d 899 (W.D. Tex. 2018)
  • Landon v. American Family Insurance Co., 293 F. Supp. 3d 879 (D.S.D. 2017)
  • Gibson v. Gibson Family Ltd. Partnership, 877 N.W.2d 597 (S.D. 2016) 
  • United States v. House, 823 F.3d 482 (8th Cir. 2016)
  • Axness v. Aqreva LLC, 118 F. Supp. 3d 1144 (D.S.D. 2015) 
  • Hot Stuff Foods, LLC v. Houston Cas. Co., 771 F.3d 1071 (8th Cir. 2014)
  • Kustom Cycles Inc v. Bowyer, 857 N.W.2d 401 (S.D. 2014)
  • Dakota Foundry, Inc. v. Tromley Industrial Holdings 737 F.3d 492 (8th Cir.  2013)
  • Beef Products, Inc. v. American Broadcasting Corp. 949 F. Supp. 2d 936 (D.S.D. 2013) 
  • Brosnan v. Brosnan, 840 N.W.2d 240 (S.D. 2013)
  • Oolman v. Icon Ag Solutions LLC, 825 N.W.2d 327 (Iowa Ct. App. 2012)
  • Surgical Institute of South Dakota v. Sorrell, 816 N.W.2d 133 (S.D. 2012)


Legal Biography

  • Cadwell, Sanford, Deibert & Garry LLP, 2011-present
  • Law Clerk, Hon. Roger Wollman, United States Court of Appeals, 8th Circuit
  • Editor-in-Chief, South Dakota Law Review, Vol. 55


Bar Admissions and Activities

  • South Dakota
  • District Court of South Dakota
  • District Court of Nebraska
  • United States Court of Appeals, Eighth Circuit
  • American Bar Association (Member)
  • South Dakota Bar Association (Member; Debtor-Creditors' Rights Committee, 2012-present)
  • Asssociation of the Bar of the United State Court of Appeals for the Eighth Circuit (Member)


  • The Status of LLC Membership Interest in the Bankruptcy Code:  Property Interest or Executory Contract? 1 S.D. State Bar Newsletter 70 (Jan. 2014)
  • Mixed Motives Speak in Different Tongues:  Doctrine, Discourts, and Judicial Function in Class-of-One Equal Protection Theory, 58 S.D. L. Rev. 197
  •  From Formal Separation to Functional Equivalence: Tribal-Federal Dual Sovereignty and the Sixth Amendment Right to Counsel, 54 SD L. Rev. 129


Board Service and Civic Activities

  • Adjunct Professor, University of South Dakota Law School
  • Board Member and Past President, Sioux Falls Arts Council
  • Sioux Empire United Way - Fundraising Campaign
  • Sioux Falls YMCA - Fundraising Campaign
Alex Hagen

T:  +1 605.336.0828
F:  +1 605.336.6036