Cornerstone Australian Shepherds
- Woodinville, WA
- Responds within a few days
Upcoming litters
Expected Australian Shepherd litter
Due Mar. 2026
Meet the breeder
I'm Maggie J., the breeder behind Cornerstone Australian Shepherds located in Woodinville, WA. We are a wife/husband/son team with a very small number of dogs in our own home. We show in conformation, agility and obedience and breed litters occasionally. Our breeding program is focused on 'do it all' Aussies who will be successful in homes, and at sports.
Q. & A. with Maggie
What makes your program special?
Cornerstone Aussies was started by my mentor Connie Chapman in 1985. Connie was never a large scale breeder, but she cared deeply for the breed, was a key pillar in her local club, and a delight to everyone around her. She believed in producing great family pets first and foremost, and loved every one of her puppy buyers. She passed in 2022 and we are honored to continue her legacy.Where do your breeding dogs live?
They live in my home.
Getting a puppy from Maggie
Maggie 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
Contract & health guarantee
Maggie 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 Maggie 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 Maggie directly.
What’s included
From Good Dog
- Lifetime support from Good Dog’s Care Team
- 10% lifetime discount on Figo pet insurance
- Puppy Training Program & private community
Enrichment & socialization
- Various sounds
- Car rides
- Surface & tactile stimulation
- Socialized with children
- Socialized in new places
- Daily handling
- Socialized with other dogs
- Introduced to people of different ages and appearances
Puppy health practices
- Vet check
- First round of shots and deworming
- Vet records
- Microchip
Extras
- Food & treats
- Blanket with mom & littermates’ scent
- AKC registration
Location & pick-up
You can drive or fly to pick up your puppy from Maggie.
Breeder’s location
Meet in Woodinville, WA
2283 miles away
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Other pick-up locations
Meet at Seattle–Tacoma Airport
2296 miles away
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Meet in Portland, OR
2322 miles away
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More about Maggie
Club memberships
Maggie is a member of Puget Sound Australian Shepherd Club, Australian Shepherd Club of America (ASCA), and United States Australian Shepherd Association (USASA).
Maggie has been a member of Good Dog for 3 months
Maggie was screened for responsible practices and has been a member since 2025.
Maggie’s links
Maggie is a trusted Good Dog breeder
Cornerstone Australian Shepherds 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
Pink, mom
Australian Shepherd
About Pink
Pink is a lover of all people - everyone. Her favorite hobby is to find new people to give her snuggles. In addition to making friends, Pink loves to go to agility class, and is an outstanding off-leash hike companion. In the house, she is an exceptionally pleasant dog who loves to be right near the action and is good with kids. Pink has an excellent track record as a mother. At just two years of age, her prior litter has two show champions and three dogs starting their competition agility, flyball and obedience careers. Pink is registered with AKC and ASCA. She is clear for hip and elbow dysplasia, and hereditary eye defects. She is an MDR1 carrier.
Uploaded health tests
Multiple Drug Sensitivity (MDR1), Elbow Dysplasia Finals (OFA, BVA, SV, FCI), +2 more.
Parent health testing
Excellent level
Cornerstone Australian Shepherds 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 Australian Shepherds.
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.
Vet Wellness Exam
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, Multiple Drug Sensitivity (MDR1)
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).
