This document discusses ethics in negotiation for in-house counsel. It outlines rules regarding truthfulness, disclosure of material facts, and duties of confidentiality. It also analyzes several hypothetical scenarios that in-house lawyers may face during negotiations involving issues like undisclosed contamination, misleading statements, and discovery tactics. The document emphasizes that lawyers must balance zealous advocacy with honesty, and should avoid assisting client fraud. It concludes that in-house lawyers in particular must be aware of boundaries in ethical negotiations due to their unique client relationship.