A rule prohibiting "dishonesty, fraud, deceit or misrepresentation" was the one most often violated by Pennsylvania attorneys and cited by disciplinary authorities over the last few years, according to an extensive review by the Law Weekly of attorney discipline adjudications in the state.

Since 2009, a total of 99 attorney discipline cases in which the state Supreme Court issued an opinion cited a violation of Pennsylvania Rule of Professional Conduct 8.4(c). The second-most frequently occurring violation was of Rule 1.4(a) and its subsections, all of which deal with prompt, reasonable and thorough communication with clients. There were 84 opinions citing violations of that rule.