Does anyone have experience dealing with claims for Liberty Mutual?...

Does anyone have experience dealing with claims for Liberty Mutual? Home was hit by a plane carrying pesticide from spraying nearby farms. It caused structural and foundation damage, fuel and pesticides inside the home. The house was occupied at the time but no physical injuries, just emotional and now medical for exposure to chemicals. Experts say house uninhabitable but insurance company wants to make them go back home to quit payin