CA Prob Code Section 16061.9

(a)

A trustee who fails to serve the notification by trustee as required by Section 16061.7 on a beneficiary shall be responsible for all damages, attorney’s fees, and costs caused by the failure unless the trustee makes a reasonably diligent effort to comply with that section.

(b)

A trustee who fails to serve the notification by trustee as required by Section 16061.7 on an heir who is not a beneficiary and whose identity is known to the trustee shall be responsible for all damages caused to the heir by the failure unless the trustee shows that the trustee made a reasonably diligent effort to comply with that section. For purposes of this subdivision, “reasonably diligent effort” means that the trustee has sent notice by first-class mail to the heir at the heir’s last mailing address actually known to the trustee.

(c)

A trustee, in exercising discretion with respect to the timing and nature of distributions of trust assets, may consider the fact that the period in which a beneficiary or heir could bring an action to contest the trust has not expired.