Yolanda Foster and David Foster in 2014 Credit: Jason LaVeris/FilmMagic

On Monday, January 11, Yolanda Foster officially filed for divorce from her estranged husband, David, more than one month after their initial separation, Us Weekly confirms.

The Public Information Office at the Stanley Mosk Courthouse in Los Angeles confirmed the news to Us, noting the Real Housewives of Beverly Hills star, 52, cited “irreconcilable differences” and is asking for spousal support.

The pair were married for four years prior to their split.

"Sadly we have decided to go our separate ways," the former couple told Us in a joint statement at the time. "We've shared nine beautiful and joyous years together. During that time we experienced love, friendship and the inevitable challenges that come with managing a marriage, careers, blended families and health issues."

Since then, former supermodel Yolanda has purchased a $4.5 million penthouse in Los Angeles, moving out of the Malibu home she shared with her ex. The reality star is currently battling Lyme disease, which has been documented on the hit Bravo show.

“Having made great strides in the past six months, I remain hopeful and determined for a healthy future with love, light, and gratitude in my heart, because I am beyond blessed after all,” she wrote in a December Bravo blog post.

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