Continuing the tradition that has made it a leader in its field, this casebook uses problems to provide an overview of lawyers' professional responsibility. One of the most rapidly changing fields in American law, professional responsibility sees new issues, rules and cases each year, all of which are covered in this book. The Eleventh Edition has been carefully designed to be familiar to long time users, and accessible to new ones. It continues its tradition of offering the most usable and up-to-date course materials to teach legal ethics and the law governing the practice of law. A comprehensive teacher's manual is available as well. Since the last edition, published in 2008, there have been: substantial changes in the ABA Rules of Professional Conduct dealing with conflicts imputed from one lawyer to other lawyers in the same firm. changes to its Model Code of Judicial Conduct and New York has completely changes its Rules of Professional Conduct, to follow the format of the ABA Rules. new court decisions -- in particular, dealing with conflicts of interest, imputed disqualifications, and ethics related to the internet, chat rooms, electronic discovery, etc.