• Home
  • Our Females
  • Our Males
  • Current Litters
  • Upcoming Litters
  • Past Litters
  • Puppy Application
  • Our Selection Process
  • Why Hybrid Vigor Mastiffs
  • The Story of Merle
  • Contact Us
  • Forms & Contracts
  • More
    • Home
    • Our Females
    • Our Males
    • Current Litters
    • Upcoming Litters
    • Past Litters
    • Puppy Application
    • Our Selection Process
    • Why Hybrid Vigor Mastiffs
    • The Story of Merle
    • Contact Us
    • Forms & Contracts
  • Home
  • Our Females
  • Our Males
  • Current Litters
  • Upcoming Litters
  • Past Litters
  • Puppy Application
  • Our Selection Process
  • Why Hybrid Vigor Mastiffs
  • The Story of Merle
  • Contact Us
  • Forms & Contracts
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Welcome to Monumental Mastiffs! 

We are so happy to have you!


 There's much to see here. So, take your time, look around, and learn all there is to know about us, our amazing dogs, and the direction of our program. We promise you won’t be disappointed!

Experienced Breeders

Happy, Healthy Hybrid Vigor Mastiffs…

Happy, Healthy Hybrid Vigor Mastiffs…

Trust us—this didn’t happen overnight.

What you see and what you get is the result of years of dedication, knowledge, and experience poured into our program.

We hold ourselves to strict selective breeding standards with a focus on health, temperament, and structure:

• Genetic health testing on all breeding stock

• Preliminary X-rays (hips and elbows) to rule out HD/ED concerns early

• Litter temperament testing to guide proper puppy placement

• Exceptional whelping and puppy-raising protocols rooted in science and hands-on experience

How our puppies are raised truly sets us apart—and it shows in every litter.

As a Certified Veterinary Technician with a deep passion for canine genetics and functional health, I take pride in incorporating years of study into every breeding decision we make. The puppies we produce are living proof of our long-standing commitment to quality and purpose-driven breeding.

We’re also proud to collaborate with one of the best Police K9 Handlers and Trainers in our area, who temperament tests each litter—ensuring we truly understand each pup’s potential.

If that’s not enough, we’re fortunate to have the guidance of a highly respected Veterinarian with over 35 years of experience who supports our program and shares our vision for healthy, functional dogs.

This is Monumental Mastiffs—purpose-bred, backed by science, and built on passion.

Happy, Healthy Hybrid Vigor Mastiffs…

Happy, Healthy Hybrid Vigor Mastiffs…

Happy, Healthy Hybrid Vigor Mastiffs…

New to the Hybrid Vigor Mastiff world?


Maybe you’ve heard the term but aren’t quite sure what it means—or why we choose to breed this specific “type” of dog.


Our goal is not only to educate but also to reassure you that every decision made in our program is rooted in a commitment to health, temperament, athleticism, workability, structure, and conformation. At the end of the day, our dogs speak for themselves—and we stand firmly behind the quality we produce.


We invite you to visit the section titled:

“Why Hybrid Vigor Mastiffs?”


There, you’ll learn more about how we select the dogs in our program and why genetics, Coefficient of Inbreeding (COI), and true genetic diversity are the foundation of our breeding practices. Everything we do is for the future health, functionality, and longevity of these dogs.

Nothing but the best.

who we are

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Don Houfek- Owner/ Breeder (West Coast)

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Our Amazing Co-Owners

Jess & Bobby Sherbondy- Owners/Breeders (East Coast)

Our Amazing Co-Owners

CLICK TO LEARN MORE

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