A1 Critter Sitters & Training

The Person Behind the Mission

Meet Theresa

30+ years of working with animals — from pet care to professional dog training. One unwavering belief: every dog deserves patience, every owner deserves support, and every life can move forward.

Theresa Cahill, Dog Trainer

Credentials

  • ✓ Animal Behaviour College Alum
  • ✓ Penn Foster Graduate
  • ✓ APDT Member
  • ✓ Pet CPR/First Aid Certified
  • ✓ Licensed, Bonded & Insured
  • ✓ XtraDog Academy (current study)
  • ✓ Heart & Soul Dog Training Course

From Pet Care to a Mission

I started A1 Critter Sitters in 1995 as a pet sitting business on Long Island's East End. For nearly three decades, I cared for animals in their homes — building relationships with families that lasted 20+ years.

But the work kept evolving. The more I learned about animal behavior, the more I realized that what most pets needed wasn't just care — it was understanding. Dogs who pulled on leash, dogs who panicked at the vet, puppies whose owners felt overwhelmed. The common thread was always the same: the human needed coaching just as much as the dog needed training.

So I shifted. A1 Critter Sitters became A1 Critter Sitters & Training, focused entirely on in-home, 1-on-1 dog training. Force-free. Science-based. Built around real-life routines, not sterile classrooms.

Then the bigger vision came.

I kept seeing the same need everywhere — shelter dogs waiting for purpose, veterans searching for connection, families looking for support. The training work I was doing every day and the gaps I kept witnessing in the community were the same problem, just showing up in different places.

That realization became A Paw Forward Retreat — a retreat where shelter dogs, veterans, children, and families come together to heal, grow, and move forward. One step. One paw. One life at a time.

What Guides Every Session

🛡️

Safety First

Every session starts with management and safety. No shortcuts, no pressure, no flooding. We meet your dog where they are.

💛

Force-Free Always

No prong collars, no shock, no intimidation. Science-based methods that build trust and lasting behavior change.

🎯

You Are the Trainer

I coach you. You train your dog. The goal is for you to be confident and capable long after our sessions end.

Ready to get started?

Whether you need help with a reactive dog, a new puppy, or cooperative care — every journey starts with a conversation.

Book Here Now Please

Or call (631) 213-7994