Hired roofing contractor (Florida) for new flat roofs June 2019. Job was permitted but I didn't get a copy of the Certificate of Insurance. Roof has now leaked multiple times. June 2020 had a major leak in three rooms that resulted in a $50K claim against my insurance company. Claim paid, interior repaired - floors, walls and ceiling October 2020. One week after repairs completed, flat roof leaks again. Ceilings damaged. I contacted Owner of Roofing company and he is giving me the run around. I want a new flat roof and I want to make a claim against their company. Where do I startlegally?