Keith is a past president of the Colorado Trial Lawyers Association and is a current board member. He is a Leaders Forum Member of the American Association for Justice. He is or has been a member of the Legislative Policy Committee of the Colorado Bar Association, Plaintiff's Employment Law Association, National Employment Law Association, and Faculty of Federal Advocates. Keith has been practicing law since 1978. He started his own practice in 1991. He was designated an Advocate by the National College of Advocacy in 1994. He has been recognized as practicing in the top 5 percent of his profession by the Colorado Bar Fellows. Keith has been designated a Colorado Super Lawyer by Denver's Super Lawyer magazine (2007-2013). Keith has also been selected as a Top 100 Trial Lawyer in the state of Colorado. Keith has helped multiple families involved in mining accidents, chemical or propane explosions, and radiation exposure involving serious injuries and death. These cases include roof fall and methane or hydrocarbon explosions. He is also a member of the Navajo Nation Bar Association.