Antoinette Harms:  We had a wonderful experience purchasing our dog T23 River Joy, from Lindsey Hassell at Tierhaus 23.  Lindsey was easy to work with, kept us updated on our pup, and was always available to answer questions.  It is clear she genuinely cares about her dogs.  River Joy has been an incredible addition to our household- giant, gentle, and friendly, yet fierce against predators.  She is exactly what we were looking for.  We woud not hesitate to purchase another pup from Lindsey in the future.

Carissa Parker:   We cannot say enough wonderful things about our experience with Tierhaus 23 and our incredible dog, Osa. She has the absolute best temperament—calm, confident, affectionate, and everything we hoped for in a livestock guardian dog. It was obvious from the start that Lindsey pours exceptional care, knowledge, and intention into her program. Every single one of her dogs has a fantastic temperament and is so clearly well loved and well raised.

Lindsey is extremely thorough in her breeding approach. She completes full genetic testing, carefully plans each litter, and selects pairings based on conformation, temperament, and clear/healthy genetics. We honestly had a very hard time choosing a puppy because all of her dogs are amazing.

Before finding Tierhaus 23, we spent a lot of time researching the CMD breed, and Lindsey wasthe most helpful and supportive resource. She has continued to be a true advocate for the breed—even after we brought Osa home—answering LGD training questions and offering guidance whenever we need it.

One of the things we love most is how well CMDs from her program do on small farms like ours. Osa is wonderful with children, strangers, and other dogs, and she fits perfectly into our family and property. 

We highly, highly recommend Tierhaus 23 for anyone looking for a thoughtful, ethical breeder who truly loves and understands her dogs. Osa has been the best addition to our home, and we’re so grateful to Lindsey for giving us the best dog.

Joanna Snyder:  Our Colorado Mountain Dog from Tierhaus 23 and Lindsey Hassell exceeded every expectation. From the very beginning, Lindsey took the time to help me select the perfect pup for my needs and provided outstanding support from puppyhood all the way through breeding.

Jackson has the most incredible personality—friendly with people, wonderful with all livestock, and by far the easiest dog we’ve ever trained. He even went on to sire an incredible litter of 13 pups from LGD to service dog candidates 

I highly recommend Tierhaus 23 for their breeding excellence and the genuine care they put into every dog they raise.