Thanks to the recent development boom, the District certainly has become hip. It follows suit that many multi-family, condo and mixed-use developers are looking in the District for good buys to develop or to hold. These developers call us all the time to ask about properties. We look forward to helping more, but to help short-circuit the process, here are five basic things you should know about the DC market before purchasing, investing or developing real estate. We absolutely would advise that, before putting money down on a deal, you should: 1) take a quick look at the zone 2) confirm if the property is located in an historic district 3) confirm if the property may be covered by CFA…