The Heller Ehrman estate is considering suing Covington & Burling and 14 partners who defected to the firm last September for breach of fiduciary duty, according to bankruptcy court filings and other sources.

Heller has hired special counsel Lovitt & Hannan to investigate who it could pursue to recover money for the estate. The firm’s fee request (.pdf) reveals it already has worked many hours on the Covington issue.