In addition to trying cases, Rob has litigated and settled class actions, represented companies and citizens in government investigations, and led investigations for audit committees of publicly traded companies.  Rob has also represented clients in a number of high-stakes appeals, including two that have gone to the Supreme Court of the United States. 

Rob has been recognized as a leading lawyer in white collar crime and government investigations in the 2013-2024 editions of Chambers USA, as a commercial litigation local "Litigation Star" in the 2012-2025 editions of Benchmark Litigation; as a “National Star” in the 2015 and 2021-2025 editions of Benchmark Litigation; as a leading lawyer in white collar criminal defense in the 2010-21 editions of The Best Lawyers in America; and as the Bet-the-Company Litigation Lawyer of the Year for Washington, D.C. in the 2013 edition of The Best Lawyers in America. 

Rob has co-taught “Defending a Criminal Case” at Vanderbilt Law School with the Honorable Amul Thapar of the U.S. Court of Appeals for the Sixth Circuit and “Federal White-Collar Crime” and “Trial Advocacy” at Georgetown University Law Center.  Rob is a frequent speaker on criminal law, legal ethics, and professional responsibility.  His speaking engagements have included appearances at the Sixth Circuit, Seventh Circuit, Tenth Circuit, and the District of Columbia Judicial Conferences.  Rob was appointed by the Virginia Supreme Court to its faculty to teach professionalism to new lawyers.