According to documents filed by Kimberly, "The marriage became insupportable because of discord or conflict of personalities ... that destroys the legitimate ends of the marriage relationship and prevents any reasonable expectation of reconciliation."
Kimberly is asking for spousal support and attorney's fees.
There is a temporary custody order in place, assuring that both Dennis and Kimberly each get time with their kids, and divides use of their residences.
Kimberly is asking that all of their community assets be fairly divided. In Dennis' answer to Kimberly's petition, he says he wants her to get nothing.
Both Dennis and Kimberly Buffington-Quaid, who married in 2004, are ordered not to say anything "vulgar, profane, obscene or indecent" to each other.
In 2007, they welcomed twins, who nearly died at Cedars-Sinai Medical Center in L.A. after they were given a massive overdose of the drug Heparin.
Dennis Quaid was previously married to Meg Ryan and P.J. Soles.