If a reduction in public funding for legal service materially impairs a legal service agency attorney's ability to represent an indigent client, the court, on its own motion or on the motion of either the client or attorney, shall permit the withdrawal of such attorney upon a showing that all of the following apply:
A showing of indigency of the client, in and of itself, will not be deemed sufficient cause to deny the application for withdrawal.
Ca. Civ. Proc. Code § 285.2