The state attorney general's office said Lorraine Brown, 51, pleaded guilty Monday in Kent County Circuit Court. She faces up to 20 years in prison when sentenced May 2.
The state said Brown orchestrated a robo-signing scheme in which employees fraudulently signed another authorized person's name on mortgage documents to expedite foreclosures.
Brown pleaded guilty to a federal charge in Florida last year and reached a plea agreement on related state charges in Missouri.
Michigan Attorney General Bill Schuette recently reached a $2.5 million civil settlement with the parent company of DocX, a mortgage processing company run by Brown.