A Checklist for counsel representing a potential or actual member of a joint defense group (JDG) under a joint defense agreement (JDA) in civil litigation. This Checklist includes best practices for determining whether client should join a JDG, protecting client confidential information, preventing waiver of the attorney-client privilege, attorney work product protection, or other applicable privileges or protections, and avoiding disqualification of counsel.

Based in part on "Investigations: Joint Defense and Confidentiality Agreement" by Jonathan N. Rosen, Rimon PC, with Practical Law Litigation.