PROB §19255: (a) A rejected claim is barred as to the part rejected unless the creditor brings an action on the claim or the matter is referred to a referee or to arbitration within the following times, excluding

(a) A rejected claim is barred as to the part rejected unless the creditor brings an action on the claim or the matter is referred to a referee or to arbitration within the following times, excluding any time during which there is a vacancy in the office of the trustee: (1) If the claim is due at the time of giving the notice of rejection, 90 days after the notice is given. (2) If the claim is not due at the time of giving the notice of rejection, 90 days after the claim becomes due. (b) In addition to any other county in which an action on a rejected claim may be commenced, the action may be commenced in the county or city and county wherein the principal place of administration of the trust is located. (c) The creditor shall file a notice of the pendency of the action or the referral to a referee or to arbitration with the court clerk in the trust proceeding, together with proof of giving a copy of the notice to the trustee as provided in Section 1215. Personal service of a copy of the summons and complaint on the trustee is equivalent to the filing and giving of the notice. (d) Any property distributed by the trustee under the terms of the trust after 120 days from the later of the time the notice of rejection is given or the claim is due and before the notice of pendency of action or referral or arbitration is filed and given, excluding therefrom any time during which there is a vacancy in the office of the trustee, is not subject to the claim. Neither the trustee nor the distributee is liable on account of the distribution. (e) The prevailing party in the action shall be awarded court costs and, if the court determines that the prosecution or defense of the action against the prevailing party was unreasonable, the prevailing party shall be awarded reasonable litigation expenses, including attorney’s fees. For the purpose of this subdivision, the prevailing party shall be the trustee if the creditor recovers an amount equal to or less than the amount of the claim allowed by the trustee, and shall be the creditor if the creditor recovers an amount greater than the amount of the claim allowed by the trustee.