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Oostra, Bierma, Van Engen & Mouw, PLC


Ronald J. Oostra

Of Counsel, Licensed in Iowa and South Dakota

General practice including but not limited to Estate and Trust Planning, Wills, Estate and Trust Administration, Probate Law, Power of Attorney and Lifetime Planning, Elder Law, Personal Tax Preparation and Planning, and Real Estate Transactions.

Professional Organizations:

  • Iowa Bar Association
  • South Dakota Bar Association
  • Sioux County Bar Association


  • University of South Dakota, Juris Doctor, 1974
  • Dordt College, Bachelor of Arts, 1969

Community Involvement:

  • Sioux Center Heritage Board
  • Sioux Center Park Board
  • Sioux Center Tree Walk
  • Covenant Christian Reformed Church
  • Faith - Covenant Cadet Club

Special Interests:

  • Family & Grandchildren
  • Trees, Prairie Plants & Grasses
  • Mission Trips