About Our Trainers

Meet The Off Leash K9 Team

Allie Poterala - Trainer

Allison has a Bachelors’s degree in Animal Science from Clemson University where she enjoyed being a Teaching Assistant for Animal Physiology classes and labs. 

With a history of animal care and internships at Fountain Inn Animal Clinic and Cedar Falls Animal Hospital, she is also an experienced equine fan and owner. 

Allison began working with dogs professionally as a Kennel Tech and then became a shift supervisor for a major dog training facility in Simpsonville, SC.

Allison is a certified trainer with Off Leash K9 Training.

Sean Martin - Trainer

Sean has an associates degree in Criminal Justice and was a corrections officer from the great frozen northern territory known as “New York State.” 

He was a client of Off Leash here in Greenville and enjoyed the training so much with his personal dog, he knew training professionally was the next step. 

Sean is now a certified trainer with Off Leash and loves his new life in South Carolina!

Krystal Sprouse - Trainer

Krystal is a graduate of Winthrop University with a degree in Psychology and minor in Business. She also is obtaining her Masters of Business from Limestone University. 

She has always loved dogs and started working with dogs from an early age. During college she volunteered at a local rescue and provide play therapy for the dogs. 

Krystal is passionate about allowing owners to enjoy their dogs, and understand why they think they way they do, and is excited to continue her education. 

In her spare time loves to camp, hike, travel, and spend time with family and friends.

trainer Krystal Sprouse

Jordan Sims - Trainer

Jordan has been working professionally with dogs since she was 16 years old, starting out in the daycare industry and years later becoming a certified trainer at Off Leash.

Jordan became extremely passionate about helping owners and their dogs regain their freedom after rescuing her personal dog Kane who struggled with dog reactivity. She started as a client with Off Leash and saw such great progress that she decided to join the team!

Jordan takes great pride in teaching people to “speak their dog’s language” and build solid relationships between owners and their dogs!

Dan Wallen - Owner

Dan is the owner of Off Leash K9 Training, Greenville, SC. He graduated from Marshall University with an undergraduate in Business Administration.

Dan began his experience with Off Leash K9 Training as a client in 2009. 

After trying various trainers for his German Shepherds (Maximus and Athena), he was still not happy with the results and began to attend training sessions with Nick White at the Off Leash K9 Training headquarters in Woodbridge, Virginia.

Dan Wallen

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About Off Leash K9 Training

Dog Trainers that Are Recognized Around The World!

Nick White, Founder Off Leash K9 Training
Photo: A&E

Nick White is the Owner and Founder of Off Leash K9 Training.  Nick is a former US Marine and former US Secret Service. He currently has over 130+ dog training locations throughout the United States.

Nick is globally recognized as being one of the top dog trainers in the world.  He has 2 official world records in off leash obedience, named on Wikipedia as one of the top 20 dog trainers in the world, recently named top 10 trainer in the world by bestdogtrainers.org, has been featured in many magazines and shows, and he is regularly requested by the top celebrities and athletes! He has been called upon by people such as actor Ryan Reynolds, WWE’s John Cena, MLB All Star Max Scherzer, UFC World Champion Jon “Bones” Jones, and many more!

You can visit our YouTube Channel and watch over 1500+ before/after videos of Nick and his team’s work!  Off Leash K9 Training has more documented videos than any dog training business in the entire world!