I need to replace the roof on my three flat rental building in Toronto and I am looking for a roofer that I can rely on for good work at a fair price. Also, what are some of the main points that should be considered when searching out for a roofer? ( what to look for and ask, square-foot rate expectations,etc.) I am planning to install slate roof shingles in the roof. Any recommendations of any roofers that anyone has worked with in the past would be helpful. I am not planning to get the job done until the spring at the earliest but think that getting it scheduled now is important.