Unfortunately I had a similar experience to other reviewers with Martin and co. The property 'management' by Martin and co. simply did not happen, they were idle with respect to problems with the property for over a year in almost every instance. They deliberately misled us over several issues, and we were fully aware of their dishonesty through direct contact with our landlord. And yet from the looks of things, we got off pretty lightly.
What agent could do to change your mind?
They could have managed the property as they were paid to do. They could have been honest with us and gained our trust.