The petition was filed last week in a court in Palm Beach County, Florida, where the couple has a home.
She is seeking sole use of their home in Florida — they have another in California — and has asked to change her name back to Jennifer Flavin.  She’s also asking for a bigger share of their assets, claiming the actor intentionally squandered money that should have been available to her.
Stallone has yet to file his response to the divorce petition, and an email to a representative seeking comment was not immediately returned.
The couple’s three daughters are all adults, so there are no custody issues to resolve.
Sylvester Stallone, 76, star of the “Rocky” and “Rambo” franchises, married Jennifer Stallone, 54, a businesswoman and former model, in London in 1997.
They dated for several years in the late 1980s and early 1990s before breaking up and later reconciling.
It was the third marriage for Sylvester Stallone, who was last married to his ‘Rocky IV’ co-star Brigitte Nielsen from 1985 to 1987. It was the first marriage to Jennifer Stallone.