Stay-at-home parents face a nightmare scenario in divorce. More are trying to avoid it. From her perch in Midtown Manhattan, divorce attorney Lisa Zeiderman has seen every imaginable marital horror story. Near the top of the list: Divorces where the spouse who stays home with the children is left with very little after decades of marriage.

But over the last couple of years, Zeiderman said, she is increasingly being asked to craft prenuptial agreements that include a "leaving the workforce" trigger. It activates if one spouse decides to stay at home and give up a career.

Right now, she said, she is working on prenups with these clauses for three different couples.