A team from Gibson, Dunn & Crutcher has agreed to charge the city of Boise, Idaho, up to $300,000 to try to persuade the U.S. Supreme Court to reinstate a city law that would impose certain penalties on homeless and other individuals who sleep on public property, according to an engagement letter that offers new insight into billing practices at the high court.

The Gibson Dunn lawyers include Los Angeles-based partner Theane Evangelis and Theodore Olson, a former U.S. solicitor general and longtime appellate advocate who reportedly bills at least $1,800 an hour. Boise agreed to pay Gibson Dunn a flat fee of $75,000 to prepare the Supreme Court petition, and the firm said it would cost Boise another $225,000 for briefing and oral argument if the justices take the case, according to contract documents reviewed by The National Law Journal.