I'm Mary H., the breeder behind Leo Fidelis Leonbergers located in Utah. We breed high-quality puppies. We love what we do and are committed to producing well-bred, healthy puppies for loving homes. Our dogs are our passion, and we can't imagine spending our lives without them. We are dedicated to achieving excellence and healthy family pets, and we love to raise puppies and prepare them for their forever homes.
Matched dogs
These dogs are already reserved or have gone home.
Girl 1
Went home
Female
Boy 5
Went home
Male
Boy 4
Went home
Male
Boy 3
Went home
Male
Boy 2
Went home
Male
Boy 1
Went home
Male
Getting a puppy from Mary
Mary 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.
Price
Connect with Mary to learn more details about pricing.
Contract & health guarantee
Mary 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 Mary 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 Mary directly.
Introduced to people of different ages and appearances
Socialized with other animals
Puppy health practices
Vet check
First round of shots and deworming
Vet records
Microchip
Extras
Basic obedience & manners
Initial potty training
Puppy starter kit
Toys
Food & treats
Registration
Blanket with mom & littermates’ scent
Location & pick-up
You can drive or fly to pick up your puppy from Mary.
Breeder’s location
Meet in Utah
5259 miles away
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Other pick-up locations
More about Mary
Mary has been a member of Good Dog for almost 2 years
Mary was screened for responsible practices and has been a member since 2024.
Mary is a trusted Good Dog breeder
Leo Fidelis Leonbergers meets or exceeds our community standards in these areas:
Responsible breeding practices
Health of breeding dogs and puppies
Puppy environment and enrichment
Buyer education and policies
Parent dogs
Disney, mom
Leonberger
About Disney
Disney is a female Leonberger. Carefully selected as a great representative of her breed, Mary decided to make her part of their program. Mary has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Georgi, dad
Leonberger
About Georgi
Georgi is a male Leonberger. Carefully selected as a great representative of his breed, Mary decided to make him part of their program. Mary has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Kizzy, mom
Leonberger
About Kizzy
Kizzy is a female Leonberger. Carefully selected as a great representative of her breed, Mary decided to make her part of their program. Mary has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Swagger, dad
Leonberger
About Swagger
Swagger is our silly, happy, goofy boy. He hops like a bunny when he sees us coming, and loves to blow bubbles in his water bowl. He is easy-going, and gets along with everyone; cat, kid, human or other!
Katnis, mom
Leonberger
About Katnis
Katnis is our giant girl, but she’s still very very young at heart. She loves her toys and thinks she’s a lap dog. She is a little more protective of her family, but loves people, dogs, cats and even a toad in the yard!
Parent health testing
Breeder-Reported Testing
Excellent level
Leo Fidelis Leonbergers reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Leonbergers.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Cardiac Evaluation (registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
Thyroid (Autoimmune Thyroiditis, registered with OFA)
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
DNA Disease Panel, Polyneuropathy 3, Leonberger and Saint Bernard Type, Leukoencephalomyelopathy (LEMP), Polyneuropathy 2, Leonberger and Saint Bernard Type, Polyneuropathy 1, Leonberger and Saint Bernard Type
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).