DR 2-109 Acceptance of Employment

 A lawyer shall not accept employment on behalf of a person if he knows it or it is obvious that such person wishes to:

1. Bring a legal action, conduct a defense, or assert a position in litigation, or otherwise have steps taken for him, merely for the purpose of harassing or maliciously injuring any person.
2. Present a claim or defense in litigation that is not warranted under existing law, unless it can be supported by good faith argument for an extension, modification, or reversal of existing law.