Rules of Professional Conduct
Rule 3-200 Prohibited Objectives of Employment
A member shall not seek, accept, or continue employment if the member knows or should know that the objective of such employment is:
(A) To bring an action, conduct a defense, assert a position in litigation, or take an appeal, without probable cause and for the purpose of harassing or maliciously injuring any person; or
(B) To present a claim or defense in litigation that is not warranted under existing law, unless it can be supported by a good faith argument for an extension, modification, or reversal of such existing law.