



I'm Diane G., the breeder behind Sylvan Mastiffs located in Gordonsville, TN. Being a breeder is my passion, not my job. I love having the opportunity to share these wonderful companions with other families! As a breeder, I feel a sense of responsibility to prioritize the overall health and temperament of each of my puppies and to ensure that they are loved and well cared for prior to joining their forever homes.

Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?

Diane has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

Diane may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Diane offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don’t hesitate to reach out to Diane directly.
You can drive or fly to pick up your puppy from Diane.
Meet in Gordonsville, TN
503 miles away
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Diane has been a member of Good Dog for almost 5 years
Diane was screened for responsible practices and has been a member since 2021.

Sylvan Mastiffs meets or exceeds our community standards in these areas: