Prenups are especially helpful for older couples and/or those who already have children, says Lynne Gold-Bikin, a family law attorney and former chair of the American Bar Association's family law section.
"Older couples may want to protect children from a prior marriage or protect the ability of the one with lesser assets to go into a nursing home and not give everything over," Gold-Bikin says.
People who have been married before are especially aware of the importance of taking these steps the second time around.
"A lot of times, prenuptial agreements have a bad connotation," Liu says. "I see them happening with people who may have been divorced once, and have children and significant assets, and want to make sure their children and family are protected if something happens."