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Meet the Trainers!


Brooke O'Brien

Founder & Lead Trainer

Brooke grew up on a cattle farm in Mississippi and has always had a deep love for animals. Watching the cattle dog work and laying in the yard with the labradors is where it all began. During her time in college getting an education degree, she got her first pet dog, Luke. Luke had Canine Mega-Esophagus, so life with this new puppy was hard enough but was even more difficult with him being untrained. He couldn't have food rewards due to his condition, so as a 20 year old college student, she dove into studying dog training and behavior. Soon after adopting this dog, she became the owner of an aggressive Australian Cattle Dog.his was something she knew she needed additional help on. She then started taking classes with a local trainer that ended up becoming her first mentor! This is when she got her first experience doing behavior modification and management. 

Once she felt confident in training and rehabilitating dogs, she began fostering for the Oktibbeha County Humane Society. Training and socializing these dogs was what she looked forward to every day.

After graduating with a degree in Music Education, she realized that teaching in a public school setting wasn’t her purpose. Brooke, Jake, and the dogs moved to the Nashville area to both pursue their new dreams. Brooke flew to California to learn from several dog trainers on what to do and more importantly, what NOT to do. Hands on experience and continued education are both far more important than the generic dog training certifications you can easily get online. She trained for free for several months to gain confidence and clientele in the area. 

Her passion for dogs and educating owners truly shows in her work. Brooke continues to further her education by studying under and getting real dog training experience with the top dog trainers in the world. Her and her dog Logan have been through Therapy Dog courses, and therapy work is something she plans to pursue with him in the near future. She is also a member of the International Association of Pet Professionals and is very active in AKC sports with her tollers including AKC Obedience, Agility, Hunt Tests, Dock Diving, and more! In addition, her dogs have also been featured on several commercials and music videos in Nashville! 

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Andrue Desmarais

Trainer - Private Sessions/Group Classes

Andrue has trained dogs for 5 years teaching over 300 group classes. He started at a local canine boarding and training facility in Mount Juliet. He owned Andrue’s Dog Training for a year offering group and private sessions. After a year, he realized he was missing out on opportunities to learn amongst peers and decided to join a team of a dog training business in Nashville. He enjoyed it very much but wanted to expand his knowledge further. Having known Brooke for over 2 years he knew that he wanted to learn from her and her team and is now thrilled to be a part of the Adventure Canine team, and to bring his expertise to the table.

Jake O'Brien

Operations and Client Relations Coordinator

Jake is a middle TN native with a background in health and fitness. He graduated from Mississippi state with a BS in Kinesiology, and spent the last 8 years leading people in their health and fitness journeys in a number of settings; personal training, rehabilitative exercise, gym ownership and online coaching.


Over the last few years, with the growth of Adventure he has developed a keen interest in the process of improving the quality of life of people and their dogs. He recognizes that many of the principles of fitness change apply within the dog training world, and he works to ensure that new and current clients understand the ins and outs of the process.


When it comes to staying in touch with Adventure Canine, he is happy to help get you started, guide you along the way, and keep in touch to make sure that you continue to see success in your dog training journey!

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Ready to share your adventures?

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