Yes. As a general matter you may terminate the attorney-client relationship and/or change attorneys at any time for any reason. The client will generally be required to comply with the terms and conditions of any retainer agreement so long as those terms do not violate any professional or ethical rule. As such, the client will be held responsible for payment of any legal services provided or expenses incurred by the attorney prior to the termination of the representation. In a contingency-fee case, the attorney may be granted an "attorney lien" on your legal matter which awards the attorney a right to a portion of any future monetary recovery.