California, United States of America
The following excerpt is from Cooper v. Ahsan, B216579, No. YC055865 (Cal. App. 2010):
3." ' "Actionable legal malpractice is compounded of the same basic elements as other kinds of actionable negligence: duty, breach of duty, causation, and damage." ' [Citation.] To establish causation in a legal malpractice action, the plaintiff must show that but for some error on the part of the defendant attorney, the plaintiff would have obtained a more favorable result." (Hearn v. Howard (2009) 177 Cal.App.4th 1193, 1208.)
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