Cal. Prob. Code § 13211

If the court finds that a person designated as a successor of the decedent in a certified copy of an affidavit issued under Section 13202 has acted reasonably and in good faith under the circumstances as known to the person, the court may, in its discretion, excuse the person from liability to pay interest, in whole or in part, under paragraph (2) of subdivision (a) of Section 13206 or paragraph (2) of subdivision (c) of Section 13206, if it would be equitable to do so.