A group of IP lawyers with a long history of working together has left Big Law to reunite in a move to Philadelphia-based IP boutique Panitch Schwarze Belisario & Nadel.

Erin Dunston and Phil Hirschhorn recently joined the firm as partners from Buchanan Ingersoll & Rooney, while Aaron Pereira, a lawyer they worked with at Buchanan until 2016, is joining Panitch Schwarze as counsel from Weil, Gotshal & Manges.