CA Civ Proc Code Section 708.430

(a)

The court in which the action or special proceeding is pending may permit a judgment creditor who has obtained a lien under this article to intervene in the action or proceeding pursuant to Section 387.

(b)

For the purposes of Sections 708.450 and 708.470, a judgment creditor shall be deemed to be a party to the action or special proceeding even though the judgment creditor has not become a party to the action or proceeding under subdivision (a).