Authorities and social services had previously investigated many of the allegations, La Habra police said in a statement.
Suleman - who has been in the media spotlight since giving birth to octuplets after she already had six children - lived in the home in Orange County until recently, when she moved to the Los Angeles County city of Palmdale.
La Habra police would not release other details, and said they have turned over their findings to the Orange County district attorney's office and social services agency.
The district attorney's office in Santa Ana did not immediately return a call for comment. A social services spokeswoman said the agency can't confirm or deny an investigation.
Suleman's manager, Gina Rodriguez, said the claims are not true and come from a woman who became obsessed with the children.
Suleman moved from La Habra two weeks ago in part to avoid this woman, Rodriguez said.
Rodriguez said the woman befriended Suleman shortly after the children were born in 2009 and eventually began stalking Suleman and sending her threatening text messages, demanding to see the children.
"None of the allegations are true," Rodriguez said in an email. "This is a woman who became obsessed with the children and contacted me to help her write a book."