(September 9, 2019, 4:14 PM EDT) -- JACKSONVILLE, Fla. — Two commercial general liability insurers have a joint duty to defend an additional insured against 83 underlying construction defect cases, a federal judge in Florida ruled Sept. 5 (KB Home Jacksonville LLC v. Liberty Mutual FireInsuranceCo., et al., No. 18-371, M.D. Fla., 2019 U.S. Dist. LEXIS 151235, 2019 U.S. Dist. LEXIS 151230)....