Surviving Spouses of First Responders. A surviving spouse of a first responder who died in the line of duty may receive a total exemption on homestead property.First responder totally and permanently disabled in the line of duty or surviving spouse. Surviving spouse of first responder who died in the line of duty. To apply, submit this application to the Cook County Board of Review. Who Is Eligible to Apply? Applicants must file a Form PTAX-341, Application for Returning Veterans' Homestead Exemption, with the Chief County Assessment Office. This exemption requires that you file a DR501 , DR501M, and proof of qualifying deployment, which includes the dates of deployment. Complete the form online and select the state's e-file option. Miami-Dade County's website allows constituents and visitors to read about key services, important news and other vital government information.