Prenups are ‘in’—but not for the reason you think

Traditionally, a prenuptial agreement, known as a “prenup,” is a legally binding agreement a couple signs before getting married that documents how a couple will divvy up their assets in the case the marriage ends. (Think financial investments like stocks or bonds, a home or other real estate, and retirement plans.) But there is a new “prenup” trend, focusing less on the marriage part—and more on the “till death do us part”—in the case a spouse dies or is i...