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 was recently selected by Super Lawyers to the 2018 Great Plains Rising Stars list.  He also has a growing transactional practice.  Alex has appeared in state and federal courts in a wide range of matters, including complex commercial litigation, trust litigation, constitutional challenges,  defamation, contract disputes, ERISA litigation, partnership disputes, products liability, and professional liability.  He lives in Sioux Falls with his wife, Blayne, and his two daughters, Sylvia and Ellery.  


Reported Cases

  • Mace v. Willis, 259 F.Supp.3d 1007 (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)
  •  Klockwerks 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) 
  • 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

  • Associate Justice, Crow Creek Tribal Supreme Court
  • 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