Kernrechtsfrage
Whether the attorney's breach of the duty to inform about accumulated costs justified reducing the fee claim under damages principles.
Extrahierter Entscheid
A fee reduction was justified only to the extent that, had the contract been properly performed, the client would probably have incurred lower costs or otherwise suffered recoverable damage.
Extrahierte Begründung
The client was not shown to have made probable use of a right to revoke or modify the mandate; a mere possible revocation does not establish damage. Under the ordinary course of events, at least the usual costs of legal representation would still have been incurred.