Travelers is suing ACE over an allegedly abandoned defense of a Trader Joe's landlord now facing a $15 million injury claim.
The case, filed on March 10, 2026, in the US District Court for the Northern District of California (Travelers Casualty Insurance Company of America v. ACE American Insurance Company, Case No. 3:26-cv-02066-SK), centers on a question familiar to insurance professionals: when two carriers cover the same insured, who picks up the tab - and what happens when one walks away?
The story begins with a trip-and-fall. According to court filings, Rosalind and Nir Arbel allege that on January 23, 2022, Rosalind Arbel was injured after tripping in a parking lot at 2670 Geary Blvd. in San Francisco - a lot leased to Trader Joe's for additional parking for its store at 3 Masonic Avenue. The Arbels sued Dominic D. Yin, individually and as trustee of the Dominic D. Yin Revocable Living Trust, among others, citing dangerous conditions including cracks, vertical displacement, inadequate lighting, and exposed rebar. Damages demanded at mediation reached $15,000,000.
The lease between the Yin family and Trader Joe's, executed in 2015, placed several obligations on the retailer. Trader Joe's was required to maintain the premises and carry comprehensive general public liability insurance of not less than $2,000,000 combined single limit. That coverage, per the lease, was "to be regarded as primary and no other insurance shall be considered contributory or as co-insurance." Trader Joe's was also required to name Yin as an additional insured and agreed to indemnify the property owner from claims arising out of its use of the premises.
ACE, which issued a commercial general liability policy to T.A.C.T. Holding, Inc. (Trader Joe's), initially stepped up. In August 2023, ACE accepted Yin's defense under a reservation of rights and retained the law firm Tyson & Mendes to handle it. For over two years, the arrangement held.
Then things unraveled. After the Arbels added Trader Joe's as a co-defendant, Tyson & Mendes found itself representing both the landlord and the tenant in what had become an adversarial dynamic. A conflict of interest surfaced in May 2025, and by August 2025, the firm withdrew from Yin's defense. Sellar Hazard & Lucia stepped in for Trader Joe's.
But according to the filing, no one stepped back in for Yin. Travelers alleges that since the withdrawal, neither ACE nor Trader Joe's has reassumed defense or indemnification of Yin. Travelers, whose own policy to the Yin Residual Trust is expressly excess when the insured holds additional insured status on another policy, says it has been left covering defense costs that should fall to ACE on a primary and non-contributory basis.
Travelers is now seeking a court declaration to that effect, along with reimbursement of all defense fees and any indemnity payments.
No final determination has been made in this case.
