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Christmas Puppies are coming!
Male & female imports due to arrive mid-December!

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Training

Training

We are Certified Dog Trainers that use Positive Reinforcement Motivation.

Boarding

Boarding

Our kennel sits on five spacious acres surrounded by beautiful mountains.

Puppies

Puppies

We only breed responsibly from the finest German bloodlines.

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German Shepherd Import Puppies are coming!

Just in time for Christmas!  We are excited to announce new German Shepherd Import puppies will be arriving to the United States on December 18, 2017. Viewing appointments will begin on Thursday December 21st. Beautifully…

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Happy Thanksgiving!

We have much to be thankful for this year. May your family be richly blessed this Thanksgiving as you spend time with one another. Enjoy the moment! Assertive K-9 Training & Staff  

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Is Your Dog Shedding?

Shaving vs. De-shedding Should I shave or de-shed my dogs hair? We want you to be informed! When you shave your dog this is what happens: Risk of overheating or heat stroke is increased due to…

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It's Jennifer and Kenai. Kenai is now an OFFICIAL THERAPY DOG, here in Chula Vista/San Diego. She passed the CGC test on the first try, she also passed the therapy dog testing on the first try as well. We had…read more

Jennifer
Jeanne Smith

We purchased a beautiful, female puppy from Thinschmidt in the spring of 2013.  Having owned large breed dogs for 30+years, we knew exceptional breeding was essential in choosing a GSD puppy.  At the time, our family included a 10 year…read more

Jeanne Smith

OMG!!! You guys are by far the best. I cannot Thank You guys enough for making my trip that much more fun by me feeling at ease that my dogs were in such good hands. Not only Amazingly well taken…read more

Jennifer Plancarte
Tony

We purchased our first German Shepherd from Thinschmidt and couldn't be more pleased. I researched several different breeders not only in California but across the U.S. I couldn't be more pleased with Assertive K9 for the quality of dog we…read more

Tony

I have purchased 2 German Shepherds from this Breeder. I originally searched all over the California for the top Breeder. the dogs are so well trained at 13 weeks when you pick them up they should be in Guiness book…read more

Gary Temel