According to Pennsylvania court records obtained by Radar, on August 25, 2017, a high-profile female attorney was appointed Guardian Ad Litem in the years-long bitter battle.
Following Radar's exclusive report that Jon won temporary custody of troubled son Collin, 14, this week, an insider claimed the shocking court decision was made possible when a third party, the guardian, intervened to look out for his best interest.
"Once an ad litem was assigned, the judge ruled both Hannah and Collin should be in the custody of Jon," the insider explained.
As Radar first reported, Collin's sister Hannah, also 14, moved in with Jon earlier this year, following a nasty war between Jon and Kate.
Over the summer, Jon revealed the news to his fans in an Instagram live session.
"She permanently lives with me,” Jon, 41, proudly told fans in the video captured by Radar in August.
Most recently, Kate, 43, was a no-show during Collin's custody hearing on December 4.
The former couple's other six children all currently live with Kate.
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