Hi lolojam,
Before you invest a lot of money into a tutor, I'd like to know a bit more about how you've been studying. It's possible that you don't need a tutor at all.
1) How long have you studied?
2) What materials have you used?
3) How have you scored on each of your CATs (including the Quant and Verbal Scaled Scores)?
4) What were your Quant and Verbal Scaled Scores for this Official 570?
5) Did you have to 'rush' to finish any of the sections and guess on a bunch of questions at the end?
GMAT assassins aren't born, they're made,
Rich