Rover cards for dog-sitting?

I have my first sitting appointment booked (I'll be watching a clients dog in my home) and I just want to make sure I understand all the logistics beforehand. Is there a Rover Card for sitting bookings? I'm assuming that on the first day of the sitting, a card will appear for me to start for the sitting booking? And if not, how do I go about documenting the stay? Do I need to? How do I send updates, record events, etc? Just take notes and send a summary to the owner?

Any information would be great and helpful!