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Dennis Lallman, a graduate of the University of Idaho, came to Ketchum to manage the accounting office of Severn, Ripley & Dorn, and purchased the practice in 1974. 

Greg Peterson began his accounting career in Western Washington moving to Ketchum in 1980 and became a partner in the firm six years later. Tyler Felton, an Idaho native, acquired his accounting experience while living in
Alaska and became a partner in the firm in 1990. Ken Pierce settled in the Valley after graduating from the University of Idaho, and became a partners in 1995.

Together, as diverse individuals we share a common goal: "to furnish our clients with the best professional services available and to adhere to standards that command the respect of our colleagues."

According to the Idaho Society of Certified Public Accountants, Lallman, Felton Peterson & Pierce is among the state's largest single-office firms. Throughout the years, the cost of our services has remained competitive at Idaho standards, while our expertise has increased at a level commensurate with that of firms in the economic capitals.

Our commitment extends to the community. We have been involved, individually and as a firm, in the development of programs such as the Ketchum/Sun Valley Chamber of Commerce, Sun Valley Center for the Arts and Humanities, Ski Education Foundation, and Ketchum and Hailey Rotary Clubs. The firm also supports many youth programs in the Blaine and Camas County school districts, especially those that challenge young people while offering them an opportunity for growth and development.