Kourtney Kardashian has hired a lawyer to ensure she gets sole custody of her three children with ex, Scott Disick; Mason, 5, Penelope, 3, and Reign, 7 months.

She has reportedly hired the same lawyer that represented her sisters Kim and Khloe Kardashian in their respective divorces to Kris Humphries and Lamar Odom; Laura Wasser.

A source told Us Weekly Kardashian doesn’t think Disick, whom she split from earlier this month after 9 years together, will fight it but she does want to hire a lawyer to protect the kids anyway.

She first met with Wasser over the July Fourth weekend, and met with her again on July 20. The former couple does not have a custody agreement in place.

"Scott's friends don't think he'll challenge Kourtney," a source said, while another said he "doesn't act like a dad at all when he's partying."

Disick has been seen back in Los Angeles after weeks of hard partying and he doesn’t seem to be slowing down, which was the reason for their split to begin with.

"She knows being with [Laura] is what's in their best interest," said the source. "There's no turning back now and she is going full steam ahead with figuring out an agreement."

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