Hot rental property investment markets for 2018’s first quarter may surprise you. : The hot rental property markets for investment consideration were recently released in a report by HouseCanary, a real estate industry data analytics firm. Shutterstock:  Cleveland Ranks Number One For Rental Property Investor Opportunity According to HouseCanary According to HouseCanary the top five cold climate markets offering the best rental investment opportunities during the first quarter, a traditionally slow buying time included; Cleveland, Detroit, Columbus, Ohio, Indianapolis and Pittsburgh.