Barn Manager - Seth Vanoosten

Caring for horses is our priority, and Seth provides top quality in the day-to-day caring for horses and managing grooms.  As a professional driver, Seth also manages all the transportation for the horses and the show experience.  

Seth's goal is to make things easy for our customers.  We know schedules are busy, and we want the experience at the barn to be enjoyable - letting customers focus on the riding their horses - we take care of everything else!

Owner - Rob Haar

In addition to managing facilities and the finances, Rob is starting a new breeding program at Signature Oak stables.  With our 2017 and 2018 foals, we are off to a great start.  

Rob's goal is to create a high-quality atmosphere where horses are not only well cared for, but that the owners enjoy the experience and time in the barn.  The facilities in Dexter offer the best amenities, including a large indoor riding arena which is both well insulated for the cold Michigan winters and well ventilated for the hot summers.  Stalls are large and open, and the facility includes not only a lounge/office, but spacious tack room and ready stalls, indoor wash rack and foaling stalls.   

Trainer - Holly VanOosten


Riding since a young girl, Holly has been showing Arabian horses since the age of eight.  It was already by the age of 11 that Holly knew she had a true passion for working with horses.  Holly was paired up with Gai Marq, a Purebred Western horse that her uncles taught her to train, and the two had a very successful show career together.


Holly went on to train and show all her own horses, having success at the regional and national level.  Her uncle, Arabian horse trainer Tim Goggins, continued to teach Holly how to be the ultimate horse person, until Holly was ready to start training on her own.  In Holly's first year as a professional trainer, she helped clients get their first National Championships.


Holly's love of horses, passion for teaching others, and commitment to family all come together at Signature Oak Stables.  In our family-friendly environment, Holly enjoys teaching riders of all ages and skill levels in Western, English and Hunt to not only ride, but to be a partner in the training process with their horse.