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Jack J. Nichols


Areas of Practice


P:  605.332.6803 • F:  605.332.3692

E:  [email protected]

Attorney At Law



I strive to maximize the value I provide to clients and leave no stone unturned.  I utilize technology in every aspect of my practice for the convenience and cost savings of clients.


Sioux Falls, South Dakota

O'Gorman High School • Class of '04


University of South Dakota

• History

• German (Minor)


Creighton University

• Juris Doctorate in Law


Upon graduating with a degree in Law from Creighton, Jack began practicing law with Lindquist & Vennum, LLP as a business and M&A attorney.  


Jack joined Nichols & Rabuck in January of 2014, where he has expanded his practice areas to include more family law and estate planning in addition to business law.


Jack was selected to the 2014 Rising Stars list.  Each year, no more than 2.5 percent of the lawyers in the state are selected by the research team at Super Lawyers to receive this honor.


427 N. Minnesota Ave, Suite 101

Sioux Falls, SD 57104

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Contact Jack J. Nichols

Business Formation – Jack advises clients in the process of incorporation and LLC formation and crafts personalized bylaws and operating agreements, as well as other necessary documents, to address the particular issues of each business client.  Jack drafts, reviews, and negotiates agreements, purchases, and sales.  Jack assists clients with terms negotiation, due diligence, and other issues in the buying and selling of businesses.  


Family Law – Jack assists clients with family issues as they occur, including adoption, custody and visitation disputes.


Cyberlaw - More issues are emerging from the growing use of the internet, with respect to domains, intellectual property, and contract issues.  Jack keeps informed about these developing issues in order to advise clients as they expand their businesses and personal lives into the internet.


Digital Assets & Social Media – Jack assists clients with the legal issues associated with social media and digital assets, from the buying and selling of businesses, to employment policies, to solutions for social media and digital assets in the realm of trusts and estates.


Litigation – Jack assists clients when disputes arise, including breach of contract issues and negligence claims.


Estate Planning and Probate – Jack creates estate plans catered to the needs of his clients, from simple estates to large and complex ones.  Jack focuses on asset preservation, legacy, family values continuation, and proper treatment of social media and digital assets in an estate plan.


Trademarks – Jack assists clients with issues related to their brands, names, and trademarks, including registration and conflict resolution.  


Bankruptcy -- Jack helps debtors who are in over their heads obtain debt relief in South Dakota Federal Court through Chapter 7 and Chapter 13 bankruptcies.


DUI / DWI -- Jack assists those charged with driving under the influence in violation of South Dakota law.  Jack thoroughly analyzes the prosecution's case for flaws and weaknesses in order to either try to case or negotiate a fair deal.