A new website is allowing New Yorkers to learn the ins and outs of a building’s history, before signing a lease. Rentlogic.com rates the city’s over one million residential buildings on a letter grade scale, much like the restaurant grading system. It uses almost a decades worth of data from various government agencies to rate a building. The website takes multiple reports into consideration, including landlord problems, vermin infestations and construction violations. Rentlogic website, currently in beta mode, is trying to make it as easy as possible for renters to quickly understand whether a building is riddled with problems or a landlord has been behaving badly: NY1