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Commercial Transactions & Litigation, Environmental Law, Natural Resources Law, & Energy Law

David L. Ganje practices commercial law and maintains a natural resources and environmental law practice. He has grounded his legal experience as a practicing attorney, a commodity arbitrator, a member of the board of directors of a bank and an adjunct professor to hone his skills in these areas of practice.

Ganje was born and raised in Aberdeen, South Dakota, and handles matters related to mineral law, environmental law, oil and gas law, energy law and water rights/water law. The practice includes representation before local and federal regulatory bodies. In his commercial law and commercial litigation practice, Ganje represents businesses and individuals in transactional and business litigation matters as well as serving as local counsel for individuals and institutions.

In the transactional arena, Ganje provides confidential legal analysis, representation and opinions in commercial and natural-resources acquisition and sale agreements as well as due diligence representation as both lead counsel and co-counsel. He represents clients in the sale and purchase of business interests, legal and title examinations, banking law matters and related financing transactions.

Ganje’s clients include businesses, institutions and individuals across practice areas.



    • South Dakota State Bar Association

Teaching positions:

  • Faculty of Law Guest Lecturer, Masaryk University, Czech Republic
  • Former Adjunct Professor of Law, Albany Law School, Union University
  • Former Adjunct Visiting Professor, Augsburg University School of Law, Augsburg, Germany
  • Former Adjunct Faculty Member, School of Business and Industry, Northern State University, Aberdeen, South Dakota

Current and past professional experience and civic commitment:

  • Member, South Dakota State Bar Committee on Natural Resources and Environment
  • Member, New York Bar Association Environmental Law Section
  • Designated Super Lawyer (2007 – 2023)
  • Chairman, South Dakota Bar Committee on Creditors’ and Debtors’ Rights
  • Member, New York State Bar Business Law Committee
  • Member, American Bar Association Volunteer Committee on Eastern European Commercial Law Project
  • Commissioner, Environmental Conservation Commission, Clifton Park, Saratoga County, New York
  • Member, Board of Directors, Dakota Plains Legal Services, Inc.
  • President, Board of Directors, Aberdeen Boys and Girls Club
  • Member, Committee on Character and Fitness, New York Supreme Court Appellate Division
  • Member, Board of Directors, Midwest Savings and Loan Association
  • Member, Brown County, South Dakota Emergency Preparedness Committee
  • Member, American Bar Association Committee on Energy, Environment and Natural Resources
  • President, Brown County, South Dakota Bar Association
  • Advisory Board Member- Big Cat Rescue, Inc.
  • Great Plains Tribal Water Alliance – Speaker

Special agency

  • Former Arbitrator, Commodity Futures Trading Commission
  • Former United States Department of Justice Chapter 7 Bankruptcy Trustee
  • Consultant- South Dakota Real Estate Commission
  • Consultant – Illinois Section American Water Works Association

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