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Marissa S.

Star Sitter

Bethesda, MD

5.0 out of 5 stars
38 reviews
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Services

Marissa can care for

Cats
0 to 15 lbs
16 to 40 lbs
41 to 100 lbs
over 101 lbs

Availability

I'm currently working part time, and able to take in drop-in visits with fairly short notice. I'm also training for a 10k, so having a four-pawed running buddy would make my runs even better!

Available
Not available
SMTWTFS
Drop-In Visits Cancellation Policy:

About Marissa S.

Communication

5 repeat pet parents
88% response rate
Usually responds in under half an hour
90% bookings with photo updates
Sends updates with Rover Cards

Dog skills

20 years of experience
Oral medication administration
Injected medication administration
Senior dog experience
Special needs dog experience
Can provide daily exercise

Safety, trust & environment

While I don't offer in-home services, understanding your dogs "vibe" is incredibly important. I know how to take cues from their energy and build up our relationship from there.

Information Marissa S. would like to know about your pet

Let me know if you've got a big big dog - they've got a special place in my heart! If your dog is best suited to a calm introduction so they can check me out first, let me know; if your dog is one that has never met a stranger, let me know that too!

A typical day

Prepping chew toys, making sure the puzzle games are ready to go, and hand feeding can be super helpful for dogs who have high mental stimulation needs - but nothing beats a good walk and sniff... or run! If you've got a high energy dog, I'd love to take them with me while I get a few miles under my belt as well.

Location

Bethesda, MD

Marissa S.'s Neighborhood

Marissa S. has Star Sitter status

The Star Sitter program highlights responsive sitters who deliver highly rated care and have a history of listing accurate availability and preferences, making it easier for pet parents to find the best care for their pets.

Helping you, helping me!

Pet care experience

Hi, I'm Marissa - I love dogs of all shapes and sizes, but especially the big goofy ones (I recently lost my Great Dane to cardiomyopathy). Further, if your border collie needs a running buddy, I'm your person! Helping get dogs physically and mentally fulfilled so they can be their best selves is something I've spent years researching and learning about. I can't wait to meet your pup!

Cat care experience

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I love cats!

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

Reviews

Kitty D.
Dog Walking • abr. 14, 2026
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Marissa was super attentive and responsive to Valerie's needs (springer spaniel puppy). My husband commented that she was confident and in charge, but super nice and connected with our pup right away. Marissa was very responsive -- I had to book sort of last minute, and she responded right away and took on three walks. She was easy to converse with/contact through the Rover platform.

Margaret H.
Dog Walking • sep. 08, 2025
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Marissa had been both organized and flexible and is immediately responsive in communications. She is very confident with large dogs. Her creative daily photograph shows she cares about my dog as an individual.

Tiffany L.
abr. 28, 2025

With a heart of gold and a love for treating fur babies like family, Marissa is exactly the kind of person you want looking after your dog! Her enthusiasm for animals is absolutely infectious, matched only by her reliability and attentiveness. I've seen firsthand how gentle and playful Marissa is, always prioritizing a pet's comfort and happiness. She understands that leaving your pet with someone requires immense trust, and they take that responsibility seriously, ensuring safety and providing plenty of cuddles and fun. If you're seeking peace of mind and a truly joyful experience for your pup, look no further than Marissa!

About Marissa S.

Communication

5 repeat pet parents
88% response rate
Usually responds in under half an hour
90% bookings with photo updates
Sends updates with Rover Cards

Dog skills

20 years of experience
Oral medication administration
Injected medication administration
Senior dog experience
Special needs dog experience
Can provide daily exercise

Safety, trust & environment

While I don't offer in-home services, understanding your dogs "vibe" is incredibly important. I know how to take cues from their energy and build up our relationship from there.

Information Marissa S. would like to know about your pet

Let me know if you've got a big big dog - they've got a special place in my heart! If your dog is best suited to a calm introduction so they can check me out first, let me know; if your dog is one that has never met a stranger, let me know that too!

A typical day

Prepping chew toys, making sure the puzzle games are ready to go, and hand feeding can be super helpful for dogs who have high mental stimulation needs - but nothing beats a good walk and sniff... or run! If you've got a high energy dog, I'd love to take them with me while I get a few miles under my belt as well.

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.
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Marissa S.

Star Sitter

Bethesda, MD

5.0 out of 5 stars
38 reviews