Lawyers Serving North Dakota And Minnesota
Since 1939

Photo of David L. Wanner

David L. Wanner

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Practice Areas

  • Real Estate Law
  • Probate


Dave Wanner joined the Ohnstad Twichell law firm in 1977. He focuses his practice in real estate, probate, estate planning and some business/corporate work. Two highlights of Dave Wanner's career were working in Washington, DC, on an ICC case during Watergate hearings and proceedings, and serving on the ND Title Standards Committee. Throughout the years, Dave Wanner has presented many CLE topics to area business entities. Dave Wanner is married to Diane. They have two adult daughters and two beautiful grandchildren. Dave enjoys golfing and spending time at the lake.


  • University of North Dakota School of Law, Grand Forks, North Dakota
    • J.D. - 00/1972
    • Honors: Order of the Coif
    • Honors: With Distinction
  • North Dakota State University, Fargo
    • B.A. - 1969
    • Major: History
    • Major: Political Science

Representative Clients

  • Farm Credit Bank of St. Paul
  • Harwood State Bank
  • State Bank of West Fargo
  • Alerus Financial (formerly First National Bank ND)


  • D. N. Hammerstrom, Alerus Financial (formerly First National Bank ND)
  • Tom Stennes, Harwood State Bank
  • Robert Kautzman, Kautzman Construction, West Fargo, North Dakota

Past Positions

  • Interstate Commerce Commission, 1972 to 1975
  • First National Bank & Trust Co., 1975 to 1977
  • Worked on an ICC case during Watergate hearings and proceedings
  • Former Chairman of Real Property, Probate and Trust Section of the North Dakota Bar Association

Published Works

  • The Uniform Juvenile Court Act, North Dakota Law Review, Vol. 48, 1971

Fraternities or Sororities

  • Phi Alpha

Professional Associations

  • State Bar Association of North Dakota, Real Property, Probate & Trust Section, Chair, 1982 to 1984
  • Red River Valley Estate Planning Council
  • State Bar Association of North Dakota, Real Property, Probate & Trust Section, Title Standards Committee Member, 1984
  • Bicentennial Lions Club, President, 1983 to 1984
  • Svee Rehabilitation Home, Human Rights Committee, Chairman, 1986 to 1989
  • Knights of Columbus , Member
  • Title Standards Committee for the North Dakota State Bar Association, Member

Current Employment Position

  • Associate Attorney

Bar Admissions

  • North Dakota, 1972


  • Best Lawyers’ 2014 Fargo Trusts
  • Best Lawyers’ 2014 Fargo Estates Lawyer of the Year