Prior to his election to the House, Otto served on the Southern Coffey County Site Council (2003–2006), LeRoy City Council (2002–2004), Unified School District 245 Site Council (2000–2003), and the Unified School District 247 Cherokee (1984).
Receiving both his bachelors and masters degrees from Pittsburg State University, Otto served as Principal at Central Heights Elementary (1976–1978) and McCune High School (1978–79). He also worked as a Performance Accreditation Director for USD 245 (1984–2004).
Otto is known for his expressing his political opinions in controversial ways. In 2009, the representative was criticized by a national civil rights organization for a video he had posted on YouTube, called "RedNeck Rap", in which he criticized President Barack Obama while wearing a hat with the words "Opossum: The Other Dark Meat". Otto claimed that the criticism was unfair and that the slogan on his hat was a reference to his "Ozark-American" heritage, not Obama. Otto also made a comparison between Obama and Adolf Hitler in a 2012 letter to the editor
- Health and Human Services
- Local Government
- Joint Committee on Children's Issues
The top 5 donors to Otto's 2008 campaign were mostly professional associations:
- 1. Kansas Medical Society $1,000
- 2. Union Pacific Railroad $700
- 3. Kansas Dental Assoc $600
- 4. Kansas Contractors Assoc $600
- 5. Lewis, Diana C $500
- Project Vote Smart - Rep. Bill Otto Biography
- "Lawmaker reposts revised anti-Obama `RedNeck Rap'". Archived from the original on 23 October 2009. Retrieved October 17, 2009.
- Follow the Money - 2008 Campaign Contributions
- Kansas Legislature - Bill Otto
- Project Vote Smart profile
- Kansas Votes profile
- State Surge - Legislative and voting track record
- Follow the Money campaign contributions: