Daniel Hartnett - Sioux City, IA
Attorney at Hauptman, O'Brien, Wolf & Lathrop, P.C.
Lawyers in Sioux City, IA
505 5th Street, Suite 800 Sioux City, IA 51101
- Free Consultation
Updated: 07/27/2026
Attorney Information
Overview
A native of northeast Nebraska, Daniel Hartnett was born in Sioux City, Iowa in 1956 and raised on his family’s farm near Hubbard, Nebraska. He earned his undergraduate degree in 1978 and his Juris Doctor in 1981 from the University of Nebraska–Lincoln. Dan was admitted to the Nebraska and Iowa state bars in 1981 and later to the South Dakota bar, and is admitted to practice before all state and federal courts in Nebraska, Iowa, and South Dakota. Prior to joining Hauptman, O’Brien, Wolf & Lathrop, Dan practiced law for 42 years with Crary, Huff, Ringenberg, Hartnett & Storm, PC in Sioux City, Iowa, where his practice focused exclusively on civil litigation.
Education
Legal Education
-
University of Nebraska College of Law,
Lincoln,
Nebraska, 1981
J.D.
Non Legal Education
- University of Nebraska–Lincoln, 1978
Current Employment Position(s)
-
Managing Attorney
Past Positions
- Crary, Huff, Ringenberg, Hartnett & Storm, PC, Partner, Managing Partner, Chair of Civil Litigation Department (42 years)
Bar Admissions
- Nebraska
- Iowa
- South Dakota
Other Affiliations
- Nebraska Association of Trial Attorneys
- Nebraska State Bar Association, House of Delegates
- Iowa State Bar Association, Board of Governors
- Iowa Academy of Trial Attorneys
Photo
Contact
505 5th Street, Suite 800
Sioux City, IA 51101
Phone Number: 402-998-5739
Fax Number: 402-397-7915
Email: Send a message
Website: https://www.hauptman-obrien.net/
Hours: By Appointment Only
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