Mitt Romney's brother filed for divorce just four months before his estranged wife plunged to her death from a California parking garage — and tried to make sure courts awarded her nothing in the split, court documents show.

George Scott Romney, 81, filed the case against 64-year-old Carrie Elizabeth Romney in June, citing "irreconcilable differences" in papers obtained by The Post.

Romney — a seasoned litigator who previously ran for public office — sought to "terminate the court's ability to award support" to either person in the divorce, court documents show, suggesting he wanted to make sure the courts didn't step in and give his wife any assets.

Other documents from the split — filed by Romney's lawyer — noted that both parties had agreed to "mediate property and support."

Carrie, however, returned fire with her own filings requesting that Romney provide her with alimony, and pay the legal costs of the divorce.

She also requested that her name be restored to a former last name, Dimas.

The case was still ongoing when Carrie's body was found at the base of a parking garage Friday night in Valencia, 35 miles north of downtown Los Angeles.

Investigators are still looking into whether she jumped or accidentally fell, with the LA County medical examiner listing her cause of death as "deferred" as of Tuesday evening.

Foul play is not suspected, cops said.

The couple had been married just over eight years when they split in May, with Romney filing for divorce the next month, court documents show.

Despite dating as far back as 2012, Romney claimed in his filing that they shared no property for the court to divide.

But they apparently lived together at a $725,000 Valencia condo, where neighbors said Carrie had been staying not long before her death.

"She was quiet. Very nice," a neighbor who asked not to be named told The Post.

Romney was also seen going for a walk in the neighborhood on Tuesday, with a hood pulled around his face as a rare dreary rain hit Southern California. 

Carrie's financial situation under the impending divorce was unclear, but she had a checkered past that included a 2001 Chapter 7 bankruptcy filing with an ex-husband.