|Mississippi Senate District 12
Walls has worked as a businesswoman and entrepreneur. She has worked in areas such as a public health training, counseling, management, paralegal research, legal analysis, and consulting. She has also worked in insurance sales and service. Walls has also been involved with community outreach and faith-based organizations, working with the American Red Cross, the Black Mississippians Council on Higher Education (Member & Director), the NAACP, and others. She has attended Jackson State University, the University of Southern Mississippi, and the University of Mississippi. Walls has three children. 
Walls' 2011 special election campaign site emphasizes several key policy positions and campaign themes:
- "I have over 40 years of experience and a record of accomplishment, working with communities throughout more than 19 Mississippi counties... I understand the region, the issues, and the people of our district and have demonstrated the commitment and ability to successfully respond to our needs... I love and honor the history, culture, and arts of the region and state. I have dedicated my life to opening doors and unlocking opportunities. I am passionately committed to building a solid path to the promise of the future for the people of the 12th Senate district. I will work with businesses, government, and communities to meet the challenges we face and fulfill the promise of Mississippi and Senate District 12... I believe in and am committed to increasing jobs, improving healthcare, and ensuring a quality education for all the people of Mississippi Senate District 12."
Walls was defeated by Derrick Simmons in the March 1, 2011 special election. In Mississippi, no party ID appears on the special election ballot. If Simmons had not received a majority of votes, a run-off would have be held March 22, 2011.