In Centurion Med. Liab. Protective Risk Retention Grp., Inc. v. Gonzalez, No. CV 17-01581 RGK (JCx), 2017 BL 392431 (C.D. Cal. Nov. 1, 2017), Centurion Medical Liability Protective Risk Retention Group sought a declaration that it owed no duty to defend a lawsuit alleging that its insureds—a group of medical practitioners—committed professional negligence during the delivery of a newborn child. Centurion argued that it had no defense obligation because its insureds did not notify Centurion of the lawsuit within 20 days after it was filed, as required under the policy.