The phrase "demanding client" refers to a customer who expects a lot and asks for a high level of attention, effort, or specific requirements from a business or service provider. Full definition
As a lawyer, there will be times when you are expected to work long hours in high stress environments and with demanding clients who want the job done yesterday. (thelawyerportal.com)
Make the most of this opportunity to prepare for a far more demanding client marketplace. (slaw.ca)
In an environment where competitive advantage is crucial, this is one way of improving the service to an increasingly demanding client base. (newlawjournal.co.uk)