The Prenup was drafted by Rabbi Mordechai Willig in consultation with halachic and legal experts. It is based on a classical version of the tana’im, the engagement contract. The financial disincentive delineated in The Prenup is based upon a husband's halachic obligation to provide food, clothing, and shelter to his wife so long as they remain married. Thus, The Prenup tells a husband "you don't want to give your wife a get? Fine, you must support her as outlined in the ketubah until you terminate the marriage by giving a get."
The Prenup has been endorsed by a number of leading poskim, including Rabbi Zalman Nechemia Goldberg, Rabbi Gedalia Dov Schwartz, Rabbi Ovadia Yosef, and Rabbi Osher Weiss. The Rabbinical Council of America has passed resolutions declaring that rabbis should not officiate at weddings in which a halachic prenuptial agreement has not been executed. To learn more, click here.