He has worked previously in all three branches of the federal government. In 1982, he served on the personal staff of Congressman Jim Leach. Mr. Stier clerked for Chief Judge James Oakes of the United States Court of Appeals for the Second Circuit in 1992 and clerked for Justice David Souter of the United States Supreme Court in 1994. Between these two positions, Mr. Stier served as Special Litigation Counsel to Assistant Attorney General Anne Bingaman at the Department of Justice.

In 1995, Mr. Stier joined the law firm of Williams & Connolly where he practiced primarily in the area of white collar defense.

Mr. Stier comes most recently from the Department of Housing and Urban Development, having served as the Deputy General Counsel for Litigation.

A graduate of Yale College and Stanford Law School, Mr. Stier is a member of the National Academy of Public Administration and a member of the New York State SAGE (Spending and Government Efficiency) Commission.