What to if there are no reviews for your applicant?

Oh, sorry I misunderstood your initial post and thought you were asking about how to vet a new sitter with no reviews.

The short answer is no, you can’t see if a sitter has missing reviews on their profile. There’s some confusion about this because a sitter can see missing reviews on their own profile, but if anyone else looks at the profile they would not see the empty review. There’s some more discussion here:

You could potentially identify a sitter with missing reviews if you saw their review on a HO’s profile but did not see a review from that HO on theirs. The missing review still wouldn’t show on the sitter’s profile, but since they could only leave a review for the HO if they had done a sit, you can assume they did not get a review for that sit.