WESTMINSTER, Calif.—Two men involved in a $15 million mortgage fraud scheme in Orange County were sentenced Thursday to seven years in prison. Jimmy Phan, 47, and Vinh Phan, 47, both pleaded guilty Dec. 16, 2021, according to court records. The Phans are not related. Co-defendant Stephen Nguyen, 59, is a fugitive. Jimmy Phan has about…