Sources told ABC News that one of those life insurance policies would pay out $50,000 in case of accidental death while traveling. The other would pay $500,000.
"It was gruesome, and it was really chilling to hear the details and to read it on paper," Triessl, the family lawyer, told GMA last year. "It was really awful for all of us."
Burgos, the dead woman's sister, said that while they knew some of the details that Mexican authorities included in the filing, "it really destroys us."
"It really puts us in a stressful and difficult position," she said.
Triessl said last November she expected the extradition battle to be "a long haul."
"I'm sure he'll fight at every turn," she said. "We're willing to continue to fight this until the very end to get justice for Monica."
Her family has also fought for custody of the couple's two young children, but a court settlement between the sisters and their brother-in-law's family decided before the Mexican murder charge was filed that the children should remain with Bruce Beresford-Redman's parents.
"We're very worried about them," Carla Burgos said.
The sisters get scheduled visitation with the children, which they cherish.
"It's very difficult. It's very difficult for them, it's very difficult for us," Jeane Burgos said. "At the time we are together, we try to make a happy and fun time for them."