What duty does a lawyer owe nonclients with regard to truthful communications?

What types of statements are not considered “statements of fact” during negotiations?

When may a lawyer communicate with a person represented by another lawyer?

Who at an organization may a lawyer communicate with when that organization is represented by another attorney?

When communicating with an unrepresented person, what kinds of statements is the lawyer permitted (or not permitted) to make?

What principles govern a lawyer’s communications with third parties?