Also, sources said authorities were interested in getting a better picture of how the scam worked.
The sources requested anonymity because they were not authorized to speak publicly.
The push for deals offers hints as to where the case that has rocked American academia is headed.
Federal authorities have said the investigation is ongoing but have not provided details. Several elite Southern California prep schools have received subpoenas from prosecutors seeking information about some of the students involved in the fraud case. Although the prep schools are not targets of the investigation, prosecutors want to know whether any parents or others accused in the case sought or received help from the schools, sources told the Los Angeles Times.
It remains unclear how many parents took part in the college admissions scam.