Dennis has been a canine professional since 1977. He was registered with the British Columbia Government as the Chief Training Instructor for Northwest Dog Training Academy in North Vancouver, B.C. He has been in the Greater Ottawa area since 2002. He developed the Companion Concept Program for training dogs which is an assessment based program that takes many factors into consideration when training a dog. He is recommended as a canine professional by Tenth Line Animal Hospital in Orleans, Eastway Kennels in Navan and Trim's Pet Store in Orleans.