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I'm Jessica I., the breeder behind Monumental Mastiffs located in Bloomingdale, OH. We breed thoughtfully paired hybrid mastiffs with a focus on health, structure, and emotionally stable temperaments. Puppies are raised in-home with ENS, Puppy Culture foundations, early crate exposure, and confidence-based routines to support lifelong family companions.
Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?
These dogs are already reserved or have gone home.
Boy 4
Male
Boy 3
Male
Boy 2
Male
Boy 1
Male
Girl 5
Female
Girl 4
Female
Girl 3
Female
Girl 2
Female
Girl 1
Female
Jessica 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.

“This price includes a 2 year health guarantee, age appropriate vaccines, microchipping, 30 days of insurance through trupanion, ear crop and aftercare. ”
Jessica 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 Jessica 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 Jessica directly.
You can drive or fly to pick up your puppy from Jessica.
Meet in Bloomingdale, OH
199 miles away
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Meet at Pittsburgh Airport
178 miles away
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Meet in Washington, D.C.
25 miles away
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Certifications & recognitions
Certificate in Managing Genetics for the Future (Institute of Canine Biology), Licensed Veterinary Technician, Puppy Culture Breeder, DNA for Dog Breeders (Institute of Canine Biology).
Jessica has been a member of Good Dog for about 4 years
Jessica was screened for responsible practices and has been a member since 2021.
Monumental Mastiffs meets or exceeds our community standards in these areas:

All breeds
Mastiff
Molosser (Bully x)
Mastiff
About Ziva
Ziva is bold, confident, and athletic with a natural drive to engage with the world around her. She’s action-oriented, adventurous, and thrives with purpose. With higher play and prey drive, she brings energy and initiative into everything she does while remaining socially aware and people-connected. Ziva represents confidence, momentum, and strong presence.
Mastiff
About Lyra
Balanced, emotionally intuitive, people-focused foundation dog Lyra is what we call a true regulator type. She carries a naturally steady temperament with strong emotional intelligence and deep people connection. She’s calm, socially aware, and intuitively reads her environment, often helping de-escalate energy rather than adding to it. Lyra is the kind of dog who blends seamlessly into family life while still maintaining confident presence and awareness. She is highly people oriented and forms strong bonds with her humans. Lyra prefers proximity and connection, thriving when included in daily routines. She is affectionate without being needy, confident without being pushy, and observant without being reactive. This balance makes her an exceptional companion and an incredible foundation female in our program. Temperament wise, Lyra represents stability, emotional regulation, and cooperative engagement. She adapts easily to new environments, settles well in busy settings, and shows excellent recovery after stimulation. She is socially appropriate with other dogs and naturally attuned to household dynamics. Lyra excels with relationship-based training and responds beautifully to calm leadership and clear communication. She enjoys learning, structured engagement, and being part of her people’s world. Her temperament makes her especially well suited for family environments, public outings, and homes that value emotional connection and intentional raising. Structurally, Lyra is athletic and well balanced, with strong bone, good proportions, and fluid movement. She embodies the functional, sound hybrid mastiff type we aim to produce: capable, grounded, and built for longevity. Lyra is the heart-dog of our program. She offers presence without pressure, connection without chaos, and stability without dullness. She is the kind of companion who quietly becomes your shadow, your steady anchor, and your everyday partner.
Molosser (Bully x)
About Karma
Karma is a female Molosser (Bully x). Carefully selected as a great representative of her breed, Jessica decided to make her part of their program. Jessica 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.
Molosser (Bully x)
About Luka
Luka is a male Molosser (Bully x). Carefully selected as a great representative of his breed, Jessica decided to make him part of their program. Jessica 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.
Good level
Monumental Mastiffs 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 Molosser (Bully x)s.
Hip Dysplasia (rDVM, not registered), Hip Dysplasia , Hip Dysplasia (Preliminary)
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 (rDVM, not registered), Elbow Dysplasia (Preliminary)
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 Examination (rDVM, not 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 (rDVM, not registered with OFA), 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.
Patellar Luxation
Knee testing reduces the chance of passing down Patellar Luxation, which results in the kneecap becoming displaced or dislocated and can cause mild to severe joint pain.
Brucellosis
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
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).