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Courtney S.

No star rating available
Profile image

Courtney S.

No star rating available
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Valley Stream, NY

Contact for Drop-In Visits

from $25 per visit

Highlights

Enhanced background check
14 years of experience

Pet care experience

14 yrs experience, trustworthy

Finding someone you trust with your pet—especially if they have special needs or behavioral quirks—can be tough. Having cared for animals my entire life and worked professionally in animal care for 14 years, my goal is to give you complete peace of mind while you're away. ​I am a certified dog trainer who specializes in fear, anxiety, and aggression management. I understand dog body language inside and out, meaning I know how to de-escalate stress and build trust with pets who might take a little longer to warm up. ​Why Choose Me? ​Lifelong Caregiver & Certified Trainer: 14+ years of professional animal care experience. ​Specialized Behavioral Handling: Expert handling for fearful, reactive, or aggressive pets without force or stress. ​All Ages Welcome: From playful, high-energy puppies to gentle, slow-moving seniors. ​Medical & Mobility Expertise: Experienced with medication administration, disability care, and senior mobility support. ​Every pet is unique, and I tailor my approach to match their routine, personality, and needs. Let’s set up a Meet & Greet to see if we’re a great fit!

Cat care experience

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14 yrs experience, fellow cat mom

Courtney also cares for cats. Learn about their cat-specific care experience.

Qualifications

100% response rate
Usually responds within a few hours
Sends updates with Rover Cards
14 years of experience

Safety, trust & environment

​I exclusively provide pet care in the client’s home to keep your pets in their most comfortable and familiar environment. During visits or drop-ins, I prioritize safety, clear communication, and maintaining your pet’s exact routine. As a certified trainer, I treat every home with complete respect while ensuring your pet receives patient, professional, and attentive care.

Ratings and reviews

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0 ratings
Jonathan L.
Sep 23, 2026

In 2022 I adopted a resource guarding cattledog mix with intense leash reactivity. As I was overwhelmed and regretting my decisions in trying to home this animal in need, Courtney Sullivan helped me train my dog and not only taught me proper mechanics but also was able to explain the behaviors my dog was exhibiting. With her help I was able to feel safe around my own dog but also helped me feel comfortable with him in public places. As I would occasionally have to go out of town, naturally Courtney is the first person I would call to take care of my dog. She is not only extremely knowledgeable and able to take care of “not so friendly” dogs, but she is trustworthy and someone I know I can depend on to keep my animal safe. I would absolutely recommend Courtney Sullivan to anyone in need of someone to take care of their animals, especially with behavioral issues or those who simply do not get along with everyone. There are very few people I trust with my dog, and Courtney Sullivan is certainly on the top of that list.

Jenna J.
Sep 22, 2026

I have entrusted courtney for several years with the car of my pets. She was our long time dog walker/ pet sitter for my late boxer, Watson who has since passed and he just adored her in every way. He was a rescue and had a lot of trauma, and she was always very gentle and listened to his needs. About a year ago, we got a golden retriever puppy named Sage who is a bit of a handful— we called in Courtney to help us with some basic training, as well as helping to curb her reactivity on leash. Sage has been doing really well with Courtney’s training plan and her jumping on people and lunging at cars has improved a great deal! We are ao happy. We gave also asked her to pet sit for sage, as well as our cats in the home and she leaves our home neat as a pin and tends to everybody’s needs / goes above and beyond. I would highly recommend Courtney as a Dog Walker, dog trainer or your pet sitter. She is really a jack of all trades, and has helped us so much broad-spectrum with our pets for the past eight years.

Debra M.
Sep 22, 2026

Courtney did a fantastic job taking care of my three dogs while we were away on vacation . Not only did she walk & feed them , give them their vitamins, clean up after my Mouse who is only semi house broken . She also sent photos & played with them . She made us feel so good knowing that they were all fine while we were away. She is extremely reliable and trustworthy and a very knowledgeable dog trainer . We trust her to always care for our dogs while we are away . Debra McKenna

Calendar and availability

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Schedule

I am currently focusing fully on my pet care business, which gives me extreme flexibility throughout the day. Because pet care is my primary focus, I am able to dedicate my time to providing reliable, high-quality care, structured visits, and customized attention for your pets on both weekdays and weekends.

Cats
0 to 15 lbs
16 to 40 lbs
41 to 100 lbs
over 101 lbs
Courtney can host up to 6 drop-ins per day
Each sitter joining Rover needs to pass a background check. And by booking on Rover, you can get photo & message updates, 24/7 support, and reimbursement for eligible vet care.