[2] He stayed on to work the family ranch with his father and his brother, Jerry, and raised his four children, Brad, Eric, Brian and Elizabeth.
While serving as Lieutenant Governor, Karl returned to MSU and completed his Bachelor of Science degree in agricultural business in 2004.
Carrying the vital spirit sparked by meeting with farmers and ranchers from all over the United States, Ohs returned home and began searching for ways and means of increasing economic options for Montana agriculture.
Running successfully for Lieutenant Governor in 2000 with gubernatorial candidate Judy Martz, Ohs was an active member of the administration, taking a leadership role is resolving complex or controversial issues facing the state including serving as chairman of the Governor's Drought Advisory Committee during drought years and chairing the K-12 Public School Renewal Commission working across party lines to solve the Montana public schools' funding problems.
In 1996, asked for help by a former ranch hand whose daughter and granddaughter were inside, Ohs served as principal negotiator making 19 separate trips into the Freeman compound.
Ohs chose not to seek the party post in 2007 due to his efforts to recover from surgery and chemotherapy for brain cancer.