How to Fire a Client

1) Stop returning emails and phone calls

2) Send a letter stating that effective on this date (date dependent on contract and of course all your contracts say you may terminate with 30 days written notice) you are terminating the agreement

3) Depending on how much you need the business (hate client need revenue) offer to continue relationship at double the fee

Comment by Thyaga on July 16, 2010 at 3:32pm: As a manager of agency service provider, it is our #1 problem and the risk, especially when the client engagement is based on commissions. We do have to deal with client contacts (HR or hiring manager) who does not provide timely feedback for candidate submissions and request for an update on the job availability.
Real-time reports from our proprietary software (WizTalent) provides us required intelligence to identify a problem client. Few times the issue was related to our understanding of requirement and the client expects - then we fix it. If we conclude that it is client's side issue, we adjust the priority and status in the software to minimize our exposure to such clients. These updates take into effect immediately across the search activities for the target position, group and/or client.
So technically.. we never fire a client, but we adjust our service commitment based on the pattern of communication.