Biebers Mastadors Puppies Available

Applications and Deposits

Melissa Bieber
Hinckley, MN  55037

When emailing - please include your first/last name, city, state and telephone number.

alternate email:
Biebers Mastador Puppies

Mastador Puppies
where puppies are people too
 Available Puppies:
 Scroll down for available puppies! Scroll to bottom of page for link to videos.


You are welcome to come see the pups & meet the parents - or 
we have a wonderful drivers that can deliver right to your door.
  Scroll Down to see Available Puppies,
Submit your Application
Make a Deposit and Reserve your Choice.  

You need to make a Reservation Deposit and 
submit the following Application by email to reserve a puppy.
Please answer each question of the application.
You can submit your application without the Reservation Fee however your choice of puppy or spot in line is not reserved until the Reservation Deposit is made.  If there is a time lapse between your application approval and your Payment - we may request an updated application.   
If we do Not approve your Application - your Reservation Deposit will be refunded. 

You must be approved by us. The criteria for that are explained below:
Highlight, Copy and click Copy as "Plain Text" to Paste the list in an email to me with your response after each question: 
(If you have trouble with the copy and paste - email me with a request for an application, and I will email the application to you.)


The questions with your responses after each question must be emailed back in order for your application to be valid. Application Agreement to QUALIFY for & Adopt a PUPPY: 

1. Your:  First Name/Last Name
   Mailing & Street Address/City/State/Zip
   If self employed - company name:

Number that you text at: ________________________

1a.  Your Spouse/Significant Other's:
       First/Last Name
       If self employed - company name:

1b.  Kid's Names/Ages (adult and minor):

1c.  Other persons in your household:

1d.  Pets Names/Type/Breed/Gender(if fixed or not)/Ages:

1e.  Do you Own or Rent your home? ______   Are dogs allowed? ______   Describe Yard: ____________

1f.  DoB  ___________    You Certify that you are 18 years old or older.  

1g. What experience do you have with puppies and dogs? 

1h. Have you (or your significant other) ever rehomed an animal? ____  If yes - who, when, why? _______

1i.  Is everyone in your household enthused about getting a mastador puppy, is willing to put in the time and effort that it takes to train and raise a puppy, and agrees to the terms of this agreement? ________

1j.  Is anyone in your household allergic to dogs?  ____________________

2a.  You agree not to crate or kennel the puppy for extended periods of time. (Nap-times and Night-time crating while potty training is ok as long as you take the puppy out as needed for potty.)  

2b.  You also agree not to leave the puppy alone for more than a few hours each day.  ie - If you work outside the home - you either take the puppy with you, have puppy daycare, or you have a play area and another pet or person companion for your puppy.  (Describe those arrangements).

2c.  Please provide details of your schedules: 

2d.  Do you expect those schedules to change? & how?

2e.  Provide details of the pups living area:  1:  While you are home:   and    2:  When you are not home:

3.  Mastadors are very social dogs, and puppies are babies that need regular companionship.  You agree that you will have another dog or have access to other dogs on a regular basis (at least 3 or more times a week) for "puppy play dates".   (Also the best deterent to puppy biting.)  _____________  Describe those arrangements:

3a. I recommend if you do not have another dog or only have an older dog, that you consider two puppies - I've personally found that raising 2 puppies at the same time is much much easier than just one & it is better for the puppies, and is the best deterent to puppy biting and seperation anxiety.  A single furkid that is used to having other dogs in the family can make for a bored and lonely puppy.  

4.  Vet Info:  Name/Clinic/Address/Email/Tele:

4a:  List 3 References (Name/Address/Email/Tele/Relationship to you/How long known):

5.  Your puppy will live inside your home, as well as have regular access to outdoor exercise.    Agree
5a.  You pup will Not be chained or confined to an outdoor type kennel.    Agree
5b. You will never abandon or surrender your pet to a shelter.    Agree
5c.  If you ever need to evacuate - you will take your pup with you.   Agree
5d. You will provide a good quality home, water, love, training, and care for the puppy.   Agree

6.  You will provide a high quality food (you will start your pup on LA All Life Stages Dog Food and wellness supplements & order the 40lb bag XL System, case of canned food, treats, ear care, porky puffs, shampoo, bio-spray & other supplies, from the provided links before getting your puppy) (offer 5-6 cups a day unless puppy is over weight - on L.A. they will likely eat much less (3-4 cups) unless going through a major growth spurt).   Failure to place initial order will result in forfeiting the pup and amounts paid. We offer an extended warranty for those who continue their pups on L.A.

7.  You agree that you have adequate income/resources to provide medical/vet/holistic care as needed.  You agree to carry insurance for your pup if you would not have the funds to cover any major accident, illness, injury, etc.

8. You agree that you will not use oral flea and tick preventatives (if you do use these products you understand all warranties are void and that many dogs are having very serious side effects including unexplained illness, seizures and death. See FDA warning & Do a facebook search "Does Bravecto Nexguard Comfortis Simparica Trifexis & Others Do they kill Dogs" to find several groups that also include the other brands of oral flea and tick meds, as well as collars and spot-ons.)  Spot on meds can also be very dangerous causing severe side effects and even death.  (Alternative suggestions will be provided in your puppy pack.)

9.  You agree that you will not use harsh training methods, regarless of the age of the puppy, that you are responsible for training, (older puppies can take longer to adjust) and that if a behavior or training issue should arise that you are not able to resolve easily on your own, that you will seek the assistance of a reward/positive reinforcement based professional trainer or behaviorist.   

10.  You agree to socialize your puppy to other people, dogs, experiences, environments, & basic training, etc when you get your puppy through their 2nd year and as needed throughout their life.   We also recommend signing up with BAXTER & Bella Online Puppy School (one-time fee for lifetime access - use MASTADOR for 25% off coupon) and finding or creating a good puppy class.

10b. You agree to sign up for Baxter & Bella's free training tips newsletter. 

11.  You agree that the puppy will not be bred or allowed to breed and you hereby agree to a NON‐BREEDING CONTRACT.  You agree to ensure your Mastador does not breed, get bred or allowed to produce or sire a litter. If these circumstances were to happen, you agree to return the Mastador prior to whelping to my facility at your expense, (unless otherwise agreed, in writing, that you would have the capability of whelping and raising a litter - in which case you agree that pricing and marketing of said pups will be determined by me, with your full cooperation including requested information, photos, videos, etc, and that I am entitled to all proceeds from said litter.)  You would have the right to pickup your Mastador at your expense once the puppies are weaned.  You agree that all proceeds from the puppies soley belongs to me.  (Violation of the non-breeding clause will result in damages to me in the minimum amount of $25,000 per litter.)

12.  You have a written plan for the puppy (Pet Trust Info will be included in your puppy pack) if you would no longer be able to care for the puppy, such as in the event of family tragedy or some other unforseen circumstance.   

12a.  Provide Details of your Emergency Placement Plan with contact info/names/address/tele/email:  

13.  You agree to contact us if you are no longer able to provide a proper home or care for the puppy/dog, beyond your immediate family, we have first option on said puppy.  No payment will be made for the return of the puppy.  We have 10 days to accept or reject this option. You are responsible for all costs related to returning puppy.  If you have not been able to find a good home, and we are not able to take the dog back on a permanent basis - you will return the puppy/dog to us OR if the timing that you need to rehome the puppy allows, we will help you find a good home.  We have an extensive network of pre-approved puppy families.

14. If you rehome the puppy, you/your family agree to screen the home for good quality, have the new family fill out our current application, and you will provide us with a copy of said application for approval, circumstances of rehoming, details of the new home and contact info.

14a.  In the event of Divorce or Family split the Best Interests of the dog/puppy will apply.

15.  You will contact us if you need help with the puppy and will give follow-up, and will contact us if something happens to the puppy including lost or stolen (as we may be able to help or someone may contact us with information).

16.  You understand that your choice of puppy will not be reserved until your completed application is approved and your non-refundable reservation fee/deposit has been made.  $525 of the $550 reservation fee goes towards the cost of the puppy.   Additional non-refundable payment of $1050 to be made at the time you choose your pup ($1000 of the $1050 goes towards the cost of the pup the remainder to CCard fees.)  You agree to make final payment before the puppy turns 6 weeks old, (I will Invoice you by email when the puppies are between 5&6 weeks old.  Invoice to be paid within 24 hours, or reservation fee will be forfeited).  (or if Pre-Approved - pay cash at the time of picking the puppy up at 8 weeks old).  All delivery and delivery related costs are in addition to the cost of the puppy and will be paid prior to the pup leaving our place.  $85 vet fee applies to all puppies.  All credit card payments are subject to .045% fee.

17.  You agree if for any reason you can not take possession of the puppy when it turns 8 weeks old that you will pay $25 per day as boarding costs through the date of pickup or actual delivery.  (IF puppy is older than 8 weeks when you make your deposit, & you ask us to keep the puppy longer - then board starts 4 days after your deposit is made).

18.  We post photos and/or video approx every 2 weeks to individual puppy albums and/or our MastadorPuppies Facebook Page, &/or Instagram Page.  Photos and videos taken by us can be used by you for your personal use only.  Once you have reserved a puppy, all requests for additional photos and/or video, of reserved puppies, must be accompanied with payment.  Once the pups are 5+ weeks - we typically post group videos more often to our fb and Instagram.

If you are on facebook - I would love for you to tag me (Melissa Bieber)  or MastadorPuppies in photos and updates on your Mastador.   
After you receive your puppy - Please join our Biebers Mastador Puppies Facebook Group that is exclusive to those with our puppies.  Joining and remaining part of the group you agree to abide by the group rules.

Your Facebook Name: 

Your Instagram name If you have or will have an Instagram including your pup:  

19.  You have read and agree to the Reservation Page and the Health and Care Page of this website. 
19a.  You agree to review the 3 ring binder of information on feeding, training and health that will come with your pup.

20.  Are you planning on picking your puppy up or do you want the puppy delivered?  

20a. (Delivery/Flight Nanny is additional cost.)  We work with drivers that will deliver right to your door or If you are in Canada will meet you at the border. (You can change this answer later if needed - however once delivery is paid there is no refund.   Delivery quote is based on the address you provide at payment and on non-private transport - meaning that there will be multiple puppies going at the same time in that general direction.  If we have 2 litters born close together - those litters will be delivered together.  If you want private transport or delivery to a different location, or earlier or later timing, additional fees may apply.  You assume all the costs, risks and responsibilities of travel/delivery.   Route and schedule of deliveries are determined by the Driver.  If opting for delivery you have read and agree to Paragraph 4 and its subparts of the Delivery Section located on the Reservation Page.  We may also have a flight nanny option for pups under 20 pounds to an airport near you.  Please tip our driver/flight nanny.)    

21.  This agreement is created in the State of Minnesota.  
21b.  Any Paragraph above not specifically answered is agreed to.​

22.  a.  How did you find out about the Mastador breed?  
 b.  How did you specifically hear about or find us?

23.  Have you picked which puppy(s) you want?         If Yes - Name(s) as listed under their photo on our website:  
23b.  If for an upcoming expected litter - name of  Mother:

23b.  If you have a Color, Gender, or other Preference - Describe:  

24a. Describe a little bit about yourself, family, recreation activities, life-style and what you are looking for in a puppy.

​24b. If you are looking for a service or support dog, describe your needs and what the dog's tasks would be. 

25.  Date:                                 Your Electronic Signature: 
IDCR Registered
Genetic Tested 
for over 150 Genetic Diseases
Certified Elbows & Hips

Has the sweetest best personality
We have been breeding Mastadors for over 11 years now, and are the first Breeder of the  Mastador (aka English Mastador).  We are located on an 80 acre ranch by Hinckley, MN.   Our dogs live in the house with us as pets and also have access to 80 acres of fields, ponds and woods to explore.  Our adult dogs live in the house as pets and The puppies are raised in our home the entire time they are here with us,  not just the first 2-3 weeks like many breeders who "house raise" their pups.   Our puppies experience everyday household life and noises daily like the comings and goings of people and our other dogs, the TV, vacuum cleaner, blender, bug zapper, and other sounds and activities.  I am a stay at home puppy mamma and the puppies are played with and cuddled everyday.  Once our puppies are big enough to use the doggie door they have access to play outside, explore the yard, and to potty outside.  We also implement ENS for their first 2 weeks of life, and thereafter daily enrichment items and activities, Socialization, Puppy Culture, and starting at 2 weeks old the Misty Method of early potty training.  
Their parents are health tested for over 150 genetic diseases.  Your puppy will come with a great start on potty training, initial vet exam (our vet comes right to our home), regular deworming, lifetime breeder support, health guarantee, microchip, parvo vax, optional 5 way, exclusive facebook group just for our puppy families, birth certificate, IDCR registration info/app., Puppy Training &/or Fitness Info, Blanket, Harness/leash, swag bag with treats, toys, & more.

We are proud to be licensed and inspected by the Minnesota Board of Animal Health, 
and look forward to participating in the Minnesota Breeders Excellence Program.

We can Deliver door to door to ANYWHERE in the continental US or can meet you at the the Canadian Border; You can pick your puppy up in person by car, or you can Fly in to Minneapolis, rent a car to pick the puppy up, and take the puppy back as carry-on.

PHOTOS/VIDEO:  We post individual photos of reserved puppies to their individual albums approximately every 2 weeks with current weight in the description of the first photo for that week, and/or group videos to our facebook page.    We also post photos and videos fairly often to our Instagram.   If you would like extra photo session (6-8 photos) or video (1-2 minutes) featuring your puppy added to his/her album, you can request that using the Link below.  

Our dogs are health tested and are English Mastiff/Labrador Retriever mix ONLY.  

Mastadors make great Therapy, Companion, Emotional, Physical, Support Dogs
Post 911 Veterans
You may qualify for a grant to cover the adoption fee and delivery of your puppy.  
Please contact Semper Fi or other programs directly for their criteria and process.

Semper Fi Fund
Your heart understands when I need a friend.  
You are always there for me - teaching me to love,  to forgive, and to live a life filled with purpose. 
  Helping me find my way through life's hardships.
  You are everything to me: friend, role model, hero, guide, confidante, teacher, and angel
Mastadors are English Mastiff x Labrador Retriever mix ONLY.  
The percentage of English Mastiff to Labrador Retriever can vary but Lab mixes with other types of Mastiffs or other Breeds are NOT Mastadors.  
 current AVAILABLE PUPPIES pictured below

Family & House Raised w/Daily Socialization
Vet Checked
Health Records
Health Guarantee
NeoPar Vaccinations
Optional: Other Vaccinations
Regular Dewormings
Life-Time Breeder Support
Exclusive FaceBook Group for our Puppy Families
Early Potty Training 
ENS & Puppy Culture Training
Genetic Health Tested Parents for over 150 diseases
Oliver's Elbows & Hips OFA Certified Good & Normal
IDCR Registered Parents
Puppy Registration Application
Puppy Birth Certificate
Puppy Pack Swag Bag
Blanket/Harness/Leash/Training Info
Individual online Photo Albums
Online Group Videos
Many Extras

Door to Door Delivery Option

Well-Socialized kids/dogs/horses/sound CDs
Daily Enrichment Activities

Parents & Puppies live in the house with us, 
and have access to 80 acres of ranch/meadows/woods/ponds to explore.

Best of Both Worlds between the English Mastiff and Labrador Retriever. Make great family pets. 
Smart, Mellow, and Easy to Train. No Drool.  

Excellent Conformation & Disposition

Many of our Pups have gone on to become Service Dogs & Emotional Support Dogs. 

12 Years Experience Breeding Mastadors

A portion of the proceeds from each puppy will go towards nonprofit 501(c)(3) organizations helping dogs, and other pets and pet families in need.

So far donations have gone to:
People & Pets Together - 
Help pets whose people are going through financial hardship.  
Ruff Start Rescue - 
No kill, foster based, rescue based in MN
​The Animal Rescue Site - 
Funds to Animal Shelters across the United States.
Your Service Dog Inc.
Helps People with disabilities obtain & train their Service Dog

Each puppy is priced individually. 
Prices are based on factors such as:  Gender, Color, Size, Conformation, Disposition, % of Mastiff to Lab, etc

In our 12+ years experience breeding Mastadors, we've found that offering a range of prices is the best way for everyone to find loving furever homes while allowing us to cater to a range of different budgets.  
Some Colors (and the bigger more mastiffy pups) are harder to come by, or may just be higher in demand. 
 The rarer/harder to find colors tend to be what I get the most requests for (Fawn/Sable/Apricot/Brindles).   
Other colors are much more frequent (&/or are in lower demand) so we ask a lower price for these pups.  


We track the pups weights and also follow up with some of our past puppies - 
so that I can give you a better idea of what range their estimated adult weight will be.

There can be a huge size range among our Mastadors - even pups from the same litter.  
Anywhere from 70 pounds on up to 170 pounds. 
Our averages for the girls tend to fall in the 110-130 range and for the boys is in the 125-145 range
​although many of our Ruffio babies are averaging larger.
Smart, Mellow, Easy to Train, 
No Mastiff Drool, Low Shed.

Many of our Pups have a Higher Percentage of English Mastiff to Labrador Retriever = Bigger, more Mellow pups, while still keeping the good health and friendly trainability of the Lab. 
Nice balance of athletic ability.
Smart, Mellow, Easy to Train, No Mastiff Drool, Low Shed

 Accepting Applications & Deposits 
late April / early May litters
​Professional Evaluator/Trainer/Behaviorist can help to determine the best service dog matches.  
Pack Leader Behavior
​A great online puppy training program.  
Reasonable one-time fee for Lifetime access to everything - Including Live Training and one-on-one video training sessions.

Use Coupon Code MASTADOR to save 25% instantly.   

If you want to reserve a puppy - email me for an application & submit your $550 Deposit.

We are Located in Minnesota

Delivery Option to ANYPLACE in the continential United States 
& to the Canadian & Mexican Borders.

possible Flight Nanny to Alaska

You also have the option to fly in to MSP and take your pup back as carry-on
Hercules -  Choc Male
 Green Collar
More Photos
Hero -  Choc Male
 Brown Collar
More Photos
Lyra  & Elvira

Serenity x Ruffio - January 28, 2021 litter

All Pups are now reserved and at their Furever homes.

1st Choice Male - Harris - Reserved
2nd Choice Male - Rebel - Reserved
Male - Legend - Reserved 

1st Choice Female - Kitty - RESERVED
Female - Mittens - RESERVED
Female - Gigi - RESERVED
Female - MoMo - RESERVED
Female - Nan - RESERVED

Candy x Ruffio - January 31, 2021 litter

All Pups are Reserved.

1st Choice Male - Sweeny - Reserved
2nd Choice Male - Neddy - Reserved
Male - Sully - Reserved
Male - Hawkins - Reserved
Male - Declan - Reserved
Male - Mick - Reserved
Male - Clooney - Reserved
1st Choice Female - Cassie - Reserved 
Female - Madeline - Reserved
Female - Dora - Reserved
Female - Gwen - Reserved
Female - Wendy - Reserved
Kitty -  Brindle Girl
Yellow Collar
​2.15 lbs 1 wk old
More Photos
Mittens -  Apricot Sable Girl
​2.8 lbs 1 wk old
More Photos
Gigi - Fawn Girl
​Orange Collar
​1.85 lbs 1 wk ; 3.55 2 wks old
More Photos
MoMo - Fawn Girl
​Purple Collar
​2.45 lbs 1 wk; 4 lbs 2 wks old
More Photos
Nan - Fawn Girl
​Pink Collar
​2.4 lbs 1 wk; 4.05 2 wks old
3 wks 5.75 pounds
More Photos
Rebel - Brindle Boy
​Light Blue Collar
​2.5 lbs 1 wk old
More Photos
Harris - Fawn Boy
​Brown Collar
​2.45 lbs 1 wk old
More Photos
Legend - Apricot Boy
​Blue Collar
​1.7 lbs 1 wk old
More Photos
Clooney - Apricot Brindle Boy
​Light Orange Collar
​1.95 lbs 1 wk; 3.1 lbs 2 wks old
4.45 lbs 3 weeks
More Photos
Sweeny - Fawn/Apricot Boy
​Tan Collar

​2.1 lbs 1 wk; 3.15 2 wks
More Photos
Hawkins - Brindle Boy
​Tan Collar
​2.05 lbs 1 wk; 2.85 2 wks old
More Photos
Mick - Apricot Brindle Boy
Dark Blue Collar
​1.9 lbs 1 wk; 2.55 lbs 2 wks old
More Photos
Neddy - Apricot Brindle Boy
​Maroon Collar
​1.9 lbs 1 wk; 2.95 lbs 2 wks old
More Photos
Declan - Apricot Brindle Boy
​Brown Collar
​1.95 lbs 1 wk; 2.95 2 wks
More Photos
Sully - Brindle Boy
​White Collar
​1.85 lbs 1 wk; 2.8 lbs 2 wks
More Photos
Cassie - Fawn Girl
​Black Collar
​2.1 lbs 1 wk; 3.35 2 wks
More Photos
Madeline - Fawn Girl
​Green Collar
​1.9 lbs 1 wk; 2.7 2 wks
More Photos
Dora - Apricot Girl
​Red Collar
​2.1 lbs 1 wk; 3.15 2 wks old
More Photos
Wendy - Apricot Brindle Girl
​Pink Collar
​2.05 lbs 1 wk; 3.1 lbs 2 wks old
4.4 lbs 3 weeks, 13.75 lbs 6 weeks old

More Photos & Video
Gwen - Apricot Brindle Girl
​Purple Collar
​1.8 lbs 1 wk; 3.05 2 wks old
More Photos

Passion x Oliver  - February 6, 2021 litter

Pups are approx 67% English Mastiff & 33% Lab

All of Passion's Pups are Reserved
Polly - Fawn Sable Girl
​Pink Collar
More Photos
Peppa - Apricot  Sable Girl
​Yellow Collar

I LOVE LOVE LOVE this girl's personality.  Very personable.  Loves people.  Loves to play. Loves to cuddle.  Loves to explore.
More Photos


x Ruffio

Halo with her 2020 Sterling litter.

(We probably won't get any black or chocolate 
pups in the upcoming litter)
1st Choice Male -  Reserved
2nd Choice Male -  Reserved
3rd Choice Male - Reserved
Male - Reserved

Halo x Ruffio - litter expected late April/Early May

We expect this litter to have multi-colors.

Higher English Mastiff to Lab Ratio
1st Choice Male - Reserved
2nd Choice Male - Reserved
3rd Choice Male - 
Male - 

Sookie x Ruffio - litter expected late April/Early May

We expect this litter to have multi-colors

Higher English Mastiff to Lab Ratio

Misty x Ruffio - litter expected late April/Early May

We expect this litter to have all black pups.

1st Generation F1 Pups 50% English Mastiff & 50% Lab
1st Choice Male -  Reserved
2nd Choice Male - Reserved
Male - Reserved
Male - 
1st Choice Female -  Reserved
2nd Choice Female - 
Female - 
Female - 
1st Choice Female - Reserved
Female - 
Female - 
Female - 
1st Choice Female - Reserved
Female - 
Female - 
Female -