Dr. Marr graduated with high honors from the Atlantic Veterinary College of Prince Edward Island, Canada. Following graduation, she served as an intern at the Mid-Atlantic Equine Medical Center. After an established sports medicine career as an associate veterinarian for other practices, she made the decision to cultivate a private practice of her own. When she is not in the field, she is a fierce competitor in the amateur-owner jumper divisions aboard a variety of her own horses.