EC 6-6.

A lawyer should not seek, by contract or other means, to limit his individual liability to his client for his malpractice. A lawyer who handles the affairs of his client properly has no need to attempt to limit his liability for his professional activities and one who does not handle the affairs of his client properly should not be permitted to do so. A lawyer who is a stockholder in or is associated with a professional legal corporation may, however, limit his liability for malpractice of his associates in the corporation, but only to the extent permitted by law.