Last week in Grebow v. Mercury Ins. Co., 2015 Cal. App. LEXIS 948, 2015 WL 6166610 (Cal.App., Oct. 26, 2015), a unanimous panel of California’s intermediate level appellate court rejected arguments that expenses incurred to prevent the collapse of a portion of the policyholders’ house were covered as mitigation. The court held that the policy provision requiring an insured to protect the property from further damage was not analogous to a sue and labor provision and did not apply until after a loss that already occurred because to hold otherwise would effectively convert the contract of insurance into a maintenance agreement. The insureds owned a house in Tarzana. In early 2013, concerned over recurring watermarks, they had a general contractor…