Estimated insurance losses from Hurricane Irma have reached $7.2 billion, as more than 877,000 claims have been filed since the September storm, according to information released Monday by the state Office of Insurance Regulation. More than 83 percent of the claims involve residential property, with most in South Florida. Irma, which has been linked to 84 deaths in Florida, made landfalls Sept. 10 in Monroe and Collier counties before barreling up the state, creating evacuation problems and widespread damage in…