Hi there!
I know a few people who have used Trusted House Sitter, but more who have used Rover. I work through Rover. Well, I own a dog walking business and I use Rover to onboard new clients and then move them over to my platform, but long story short- I use Rover. Ha.
There's an option on there for house sitters and also one for boarding, if you wanted your pup to stay in someone else's home. I'd opt for the house-sitting as it's generally more cost effective, plus your dog gets to stay somewhere she is comfortable.
You'd generally schedule a Meet-And-Greet with the sitter prior to make sure that ALL expectations are very clear and that they have any emergency information, etc. If you have a hard time matching up times for a meet and greet, do it via Zoom or Skype or FaceTime.
Check their reviews, testimonials, and background check. All of that is on Rover.
Be sure they are very clear on what is expected of them, that you know when they will/won't be in the home (roughly) and let them know what amenities they can use. You will have to pay for their services, but generally, if you offer great amenities, they will be willing to trim their prices back depending on what they have going on.
Questions to ask:
Roughly when will you be home and away?
Have you house-sat before? Tell me about that experience.
Are you insured?
How long have you been caring for pets?
Things to discuss:
Amenities - can they eat your food? Can they use your Netflix account? Can they do laundry while there? Where will they sleep? Etc.
Expectations - do they need to bring in the mail? Mow the lawn? Can they have guests? Do they have a contact sheet for a nearby neighbor just in case and ALL of the local emergency numbers (including the nearest emergency vet and your pets local vet too)?
I know that in the next year or two I will be trying to schedule a "Vacation" Pet Sitting somewhere warm or coastal so that I can get away, and any extra I'd make for taking care of the house would be a bonus. Generally, during the rest of my work year I'd charge normal rates, but in a home with a pool or free food or a hot tub, etc I'd probably be willing to cut my rates in half so that I could have some small respite during my stay.
Just some thoughts!