Which action is considered a violation of a lawyer's duty not to harass?

Continuing representation without proper cause is a clear violation of a lawyer's duty not to harass, as this action can be seen as exerting undue pressure on the client or the opposing party. When a lawyer continues to represent a client in a matter that lacks merit, is frivolous, or has been resolved, it may lead to unnecessary disputes, extending legal processes, and creating hardship for others involved. Such behavior demonstrates a lack of respect for the legal system and can contribute to harassment or intimidation, not only of the opposing party but also potentially impacting the client by drawing them into an ongoing legal battle that should have been concluded.

On the other hand, accepting a case that may encounter difficulties, advising a client on the best legal strategy, and encouraging negotiation between parties do not inherently violate the duty not to harass. These actions are part of a lawyer's role in providing competent representation and seeking constructive solutions, which are essential components of legal practice. Engaging in negotiations or offering sound legal advice reflects a commitment to resolving issues rather than exacerbating conflicts.