Entertainment firm Cowan, DeBaets, Abrahams & Sheppard announced a new co-head of the firm's entertainment practice, new co-heads of the firm's Los Angeles office, a partner promotion, and further development of the art law group.  Frederick P. Bimbler is joined by Caitlin S. DiMotta in heading up the firm's entertainment practice. Bimbler services his portfolio of clients on both coasts and will co-head management of the firm's Los Angeles office with partner Sarah Conley OdenkirkPooneh Aminian of the firm's Los Angeles office has been elevated to partner.