When does receipt of a pre-suit claim notice letter trigger an insurance carrier’s obligation to provide a defense and/or indemnity? In Sanders v. Phoenix Insurance Co., the First Circuit provided some guidance to this question, holding that a pre-suit notice letter would not trigger a carrier’s obligations unless a non-response would impact the policyholder’s ability to contest liability during a following proceeding. The Underlying Dispute Sanders arises from a “tragic tale of unrequited love.” Ms. Anderson hired an attorney to represent her in a divorce proceeding from Mr. Sanders, her husband. During the course of that representation, Ms. Anderson and her attorney began an affair. Ms. Anderson suffered from depression and anxiety. When the affair cooled, Ms. Anderson wrote a…