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Dog principal

Specific behaviors to address

Responds within a day


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About
At Dog Principal, I provide private in-home dog training and real-world behavior training throughout Annapolis, Anne Arundel County, Washington, D.C., Northern Virginia, and the greater DMV area. I work with dogs dealing with aggression, reactivity, anxiety, resource guarding, dog-to-dog conflict, fear, leash pulling, and difficult behavior around people or other dogs. Training begins in the home and neighborhood, where I can see the behavior in the environment where it actually happens. When appropriate, we also practice in public areas such as sidewalks, parks, and other real-world settings. My approach focuses on evaluation, cooperation, fulfillment, socialization, and authority. Every training plan is customized to the individual dog and family, with the goal of creating clearer communication, better behavior, and lasting improvement in everyday life. I graduated from Tarheel Canine Training School and am a certified police dog trainer. My work with Dog Principal focuses on behavior modification, rehabilitation, obedience, confidence building, and helping families manage challenging behavior in practical, real-life situations.
Overview

Hired 85 times

2 similar jobs done near you

Background checked

1 employee

4 years in business

Business hours

Sun7:00 am - 10:00 pmMon7:00 am - 10:00 pm

Payment methods

This pro accepts payments via Apple Pay, Cash, Check, Credit card, Google Pay, Stripe, Venmo, and Zelle.

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Instagram

Top Pro status

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2025

Services offered
Animal Training
Projects and media
Projects and media
Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Exceptional 5.0

64 reviews

5

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Krystal T.

Sep 28, 2026

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Hired on Thumbtack

Adam, was awesome. He taught us a lot about how to make sure we know how to communicate with our dog, Duke. He is a cane Corso about 1 years old. With the first session we see a great improvement and he is listening more and waiting for our instruction before he does anything. We are grateful we are working with Adam.

Details: 6 - 12 months old • Large (41 - 70 lbs) • Private lessons • Aggressive behavior modification • Leash pulling • House training • Barking • At the pro’s location • My home, venue, etc.

Dog principal's reply
Thank you so much, Krystal! You and your husband deserve the credit—you both picked up the ideas quickly and put them into practice with Duke. I’m glad you’re already seeing progress after our first session. Thank you for trusting me and sharing your experience!
Dog Training
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Sydney B.

6 days ago

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Hired on Thumbtack

Adam has been so helpful and absolutely amazing with Tux! We have a pitbull and he was very anxious and aggressive. He has gotten a lot calmer and better trained since working with Adam. We are so happy about our upcoming sessions! And looking forward to continuing our work with Adam.

Details: 6 - 12 months old • Large (41 - 70 lbs) • Private lessons • Aggressive behavior modification • Leash pulling • House training • Crate training • My home, venue, etc.

Dog principal's reply
Thank you so much, Sydney! You’ve put time, patience, and consistent work into helping Tux, and his progress reflects that dedication. It’s wonderful to hear he’s becoming calmer. It’s a pleasure working with you both, and I look forward to our next sessions!
Dog Training
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Mary B.

Apr 19, 2026

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Hired on Thumbtack

Adam has been sooo helpful in helping us train our new puppy. He is very experienced and has such a good way of teaching and showing us what we should be doing. He tailored each visit to what we were having trouble with and the results have been phenomenal. I highly recommend Adam.

Details: 0 - 6 months old • Extra Small (1 - 15 lbs) • Private lessons • Puppy training • Biting • Chewing • Leash pulling • My home, venue, etc.

Dog principal's reply
Thank you so much, Mary—I truly appreciate your kind words. It was a pleasure working with you, and you deserve a lot of credit for the results you’re seeing. Your consistency, patience, and willingness to follow through made a huge difference, and it really shows in your puppy’s progress. I’m always here for you anytime you need support moving forward. Dog Principal proudly serves clients across the DMV area, including Baltimore, Annapolis, Columbia, Rockville, Gaithersburg, Frederick, Northern Virginia, and Washington, D.C.
Dog Training
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Elisa F.

Jun 7, 2026

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Hired on Thumbtack

Adam is very knowledgeable about training dogs. Pleasant and a great listener our first session went great! I would recommend his service.

Details: 0 - 6 months old • Extra Small (1 - 15 lbs) • Private lessons • Puppy training • Leash pulling • Barking • My home, venue, etc.

Dog Training
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Serina G.

Apr 14, 2026

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Hired on Thumbtack

Adam is amazing! We hve only had our first visit and we already see many positive changes in our Wrangler! We look forward to working with him more!

Details: 1 - 2 years old • Large (41 - 70 lbs) • Private lessons • I'm flexible • Leash pulling • At the pro’s location • My home, venue, etc.

Dog principal's reply
Thank you so much Serina, this truly means the world to me! But I want to be honest — the credit belongs entirely to you. The changes you are already seeing in Wrangler after just one session are a direct reflection of your dedication, your consistency, and the love you have for him. You showed up ready to learn and ready to put in the work and that is everything. Wrangler is lucky to have a parent like you. I am so looking forward to continuing this journey with you both!
Dog Training
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Adam Hartman

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