Side-switching by a defense lawyer in a federal employment discrimination suit has led to disqualification of the plaintiffs’ firm, even though she was there only about a month.

Costello & Mains gets the boot as plaintiffs’ counsel in Martin v. Atlanticare Regional Medical Center , 10-cv-6793, because Lisa Grosskreutz joined after working extensively at Morgan, Lewis & Bockius for the defendant, Magistrate Judge Joel Schneider ruled on Tuesday.