Collin grew up in Del City, Oklahoma and graduated from Oklahoma State University. After college, Collin attended Oklahoma City University School of Law and graduated magna cum laude.
While in law school, Collin met his wife, Rev. Lori Walke, who is a minister in Oklahoma City. Collin owns his own law firm and is also the co-founder of AwakeOKC, Inc., a local non-profit that helps schools, the community at large, and at-risk youth and adults. Collin is the former Chairman of the Board for City Rescue Mission, the state's largest homeless shelter, where he still serves on the Board. Collin began his work with City Rescue Mission as a volunteer. Collin also serves on the Oklahoma Autism Center Foundation, as well as the Oklahoma City Philharmonic Associate Board. In 2019, the Journal Record recognized Collin as an "Achiever Under 40" and the Oklahoma City Gazette has named Collin as a "40 Under 40" award recipient.
Collin was first elected to the Oklahoma House of Representatives in 2016 and was re-elected in 2018. Collin and Lori love northwest Oklahoma City and have dedicated their outreach efforts to making Oklahoma City a better community for everyone. Collin serves on the Judiciary Committee, Appropriations and Budget Committee, Administrative Rules Committee, and Utilities Committee. He Co-Founded the Freshman Bipartisan Caucus. Collin is also the Vice-Chair of the Native American Caucus.