Sean Chang focuses his practice on government and internal investigations and regulatory enforcement matters. He has helped clients navigate investigations by the US Department of Justice, Securities and Exchange Commission, the Federal Trade Commission, and state attorneys general, among other regulators. Mr. Chang has advised clients on matters involving the intersection of legal, regulatory, and policy issues, including those related to consumer protection, content moderation, and artificial intelligence. He also has experience representing corporate clients in complex civil litigation matters in state and federal courts. Mr. Chang maintains an active pro bono practice, with a focus on reproductive rights and LGBTQ asylum cases.

Prior to joining the firm, he was a law clerk for Senator Amy Klobuchar on the US Senate Judiciary Committee and worked as a legal assistant for a national litigation law firm in New York City.

Prior to attending law school, Mr. Chang interned with Immigration Equality in New York City, an organization advocating for LGBTQ and HIV-positive immigrant rights, and High Jump in Chicago, Illinois, an organization working to equalize access to education for middle school students who have exhibited academic ambition and potential and who are of limited economic means. He also worked as a casework intern in the office of US Senator Richard Durbin in Chicago, Illinois.