End-of-life notice: American Legal Ethics Library
As of March 1, 2013, the Legal Information Institute is no longer maintaining the information in the American Legal Ethics Library. It is no longer possible for us to maintain it at a level of completeness and accuracy given its staffing needs. It is very possible that we will revive it at a future time. At this point, it is in need of a complete technological renovation and reworking of the "correspondent firm" model which successfully sustained it for many years.
Many people have contributed time and effort to the project over the years, and we would like to thank them. In particular, Roger Cramton and Peter Martin not only conceived ALEL but gave much of their own labor to it. We are also grateful to Brad Wendel for his editorial contributions, to Brian Toohey and all at Jones Day for their efforts, and to all of our correspondents and contributors. Thank you.
We regret any inconvenience.
Some portions of the collection may already be severely out of date, so please be cautious in your use of this material.
ABA Model Rules of Professional Conduct
Comment - Rule 4.1
 A lawyer is required to be truthful when dealing with others on a client's behalf, but generally has no affirmative duty to inform an opposing party of relevant facts. A misrepresentation can occur if the lawyer incorporates or affirms a statement of another person that the lawyer knows is false. Misrepresentations can also occur by failure to act.
Statements of Fact
 This Rule refers to statements of fact. Whether a particular statement should be regarded as one of fact can depend on the circumstances. Under generally accepted conventions in negotiation, certain types of statements ordinarily are not taken as statements of material fact. Estimates of price or value placed on the subject of a transaction and a party's intentions as to an acceptable settlement of a claim are in this category, and so is the existence of an undisclosed principal except where nondisclosure of the principal would constitute fraud.
Fraud by Client
 Paragraph (b) recognizes that substantive law may require a lawyer to disclose certain information to avoid being deemed to have assisted the client's crime or fraud. The requirement of disclosure created by this paragraph is, however, subject to the obligations created by Rule 1.6
Model Code Comparison
Paragraph (a) is substantially similar to DR 7-102(A)(5), which stated that "[i]n his representation of a client, a lawyer shall not . . . [k]nowingly make a false statement of law or fact."
With regard to paragraph (b), DR 7-102(A)(3) provided that a lawyer shall not "[c]onceal or knowingly fail to disclose that which he is required by law to reveal."