A 2½-year investigation by federal authorities has concluded that the city of Miami misled investors about the city’s financial health as it sold hundreds of millions of dollars worth of bonds dating back to 2007.

A two-page letter sent by the Securities & Exchange Commission and received by the city late Monday said the agency intends to seek civil fines and a court order against the city for violating federal laws. It is the second time the city has faced such sanctions.

Former city administrator Michael Boudreaux, who was the budget director during the time at issue, also received an SEC letter accusing him of securities violations, said his attorney, Michael Pizzi.