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Jack Osbournehas finalized hisdivorcefrom wife Lisa less than one year after she filed, PEOPLE confirms.

“Jack and Lisa are both doing well, getting along great as friends, and are still very much involved as a family with the kids,” a source close to the former couple tells PEOPLE.

TMZandRadarreport that a judgment of dissolution was entered in the former couple’s divorce case on Tuesday.

Lisafiled for divorcein May after nearly six years of marriage.

In August, Jackresponded to Lisa’s petition for divorceand agreed to joint custody of their three daughters: Andy Rose, 3, Pearl Clementine, 6, andMinnie Theodora, 13 months.

Jack also reportedly denied Lisa spousal support. According to TMZ, they agreed on an upfront cash payout rather than monthly payments.

Both cited irreconcilable differences as to the reason for their divorce.

As for the separation of their assets, both Jack and Lisa walked away from the marriage with a piece of property.

At the time of the divorce filing, Jack shared an Instagram post on behalf of the pair, explaining that while the news of their separation “has probably come as a bit of a shock to everyone,” the couple tried for years to make their marriage work.

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“What’s best for our family right now is that we separate lovingly, and remain best friends who are committed to raising our children together,” the father of threewrote. “We are disappointed but feel confident that we will continue to grow our relationship as co-parents and best friends.”

The pair exchanged vows on Oct. 7, 2012, in front of 48 close friends and family members, including his parentsSharonandOzzy Osbourne,as well as sisterKelly Osbourne, who recentlyspoke out about Jack and Lisa’s separation.

“It’s sad, but you know, they have a great relationship with one another. The main priority is just the kids and making sure that they get what they need,” Kelly said. “It’s foolish to try and fix something together that isn’t going to work. They’re doing the adult thing, and that’s great for them.”

She added: “I’m very close to the both of them. Families are supposed to support one another, and that’s all I’m there to do.”

source: people.com