Jonathan Ballan, who was head of Dentons’ New York public finance group, has left for Cozen O’Connor. Ballan, who is joining Cozen O’Connor with another former Dentons attorney, Robert Owen Senzer, will co-chair Cozen O’Connor’s public and project finance practice group.

In recent years, Ballan has overseen financings for Yankee Stadium in the Bronx, the Barclays Center in Brooklyn, and the LaGuardia Airport Terminal B reconstruction project in Queens.