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Gossip Girl star Leighton Meester isn't letting family matters get her down!

The actress has purchased a $1,457,500 home in Encino, California -- some good news considering she's been dealing with mama drama all summer!

On Tuesday, Leighton, 25, filed a petition in LA's Superior Court to get a $3 million lawsuit from her mom, Constance Meester, thrown out. Constance is suing Leighton over a "management agreement," saying Leighton agreed to pay her $10,000 a month for the rest of her life. Leighton says the agreement never existed.

Luckily, Leighton now has this home to relax in. The four-bedroom, four-bathroom home is 2,847 square feet and features walk-in closets, a steam shower, a fireplace, a built-in barbecue, a pool, a guest suite and a breakfast bar.

Get the rest of the story on Leighton's mom issues after the jump!