Is attorney-client privilege a valid claim?

In asserting the broad claim of attorney-client privilege as to these questions, petitioner submits that factual information, as well as legal opinions, transmitted from attorney to client are protected against disclosure. The purpose of the privilege is to insure "the right of every person to freely and fully confer and confide in one having knowledge of the law and skilled in its practice, in order that the former may have adequate advice and a proper defense." (Estate of Kime (1983) 144 Cal.App.3d 246, 255, 193 Cal.Rptr. 718; citing Baird v. Koerner (9th Cir.1960) 279 F.2d 623, 629.)