His Start: Greenberg Traurig’s public finance and infrastructure practice put McGuire at the ideal intersection of the transactional area and his public policy and public law interests. Climbing the Ladder: “Over time, I built the practice from being a summer associate at GT all the way to chairing the practice here in Boston. It has been a very rewarding, challenging, but fun experience to grow with the firm,” he says. Making History: A major project is his work on the construction of the Brightline passenger railroad, which has been financed primarily with tax-exempt debt. The line from Miami to Orlando is the first privately owned and operated passenger rail system built in the US.