The review’s authors, former senior social worker Jane Wonnacott and ex-homicide detective Dr Russell Wate, said the lack of inquiries by children’s services to police was “surprising”.
They added it was “an opportunity to identify” Sara’s abuse.
The council had plenty of files about the family’s involvement with police and social services, but “there was no time to explore this in depth”, the review found.
Instead of deciding more time was needed to analyse the information, there was an “overreliance” on Sharif’s account, it added.
The review said Sharif “groomed and manipulated” the professionals who could have helped Sara, alongside the 10-year-old herself who almost always appeared “loyal to her father”.
Surrey County Council chief executive Terence Herbert said children’s services in Surrey had gone from “inadequate” to “good” in recent years.
“We are absolutely determined to keep making improvements that can help keep children safe,” he said.
“The report does not find a single solution to address all the factors that affected Sara or hold any one organisation accountable.”
