There is a legend floating around about the abusive/difficult-client-who-became-a-loyal-lifelong-customer. It's just that – a legend. If it was actually true, it would have become a cliché long ago. Abusive people don't miraculously stop being abusive, gift their agents with million-dollar checks or leave them estates in their will. They will continue using you as their doormat, not treat you like a trusted colleague.
The stress generated by an abusive client far outstrips the benefit of the commission you may or may not get (these kinds of clients often find excuses to leave you hanging after you've spent hours working on their increasingly impossible demands). If you're dreading to meet with them again, if you're finding that they interrupt the flow of the real estate search to cut up your character or criticize your methods, if you just can't stand being in their presence because you know that they're going to doubt your expertise, question your ethics and generally make you feel bad about yourself and your business…. CUT THEM LOOSE. VK Melhado