Davis Roofing and construction Assulted me Arlington Heights Illinois

I'm in a townhouse in Wheeling and my association hired Davis to install all new roofs in our complex. This was a major contract for them but they came in and did things as fast and cheaply as possible. After speaking to many neighbors, it is obvious that 50% of us have had problems and even though the roofs are under warranty, Davis is charging for repairs. This is the 4th time I had to call the association as there were water spots over my backdoor and going into my kitchen. One of the owners came over to inspect and walked in, took one look, and said it was from my skylights and it wasn't covered and turned to walk out. I had already seen where I thought it was coming in. I said " B*******, it's right here" went to show him and he became agitated as words were spoken. He bullrushed me shaking his fist threatening to kick my a$$. He then tried to headbutt me but only hit my nose. As there was no blood or witnesses, the cops wouldn't do anything. I am now left without any solution due to Davis roofing even after being assaulted by the owner.