§ 250. Agreements relating to marriage; statute of limitations. 1. The
statute of limitations for commencing an action or proceeding or for
claiming a defense that arises from an agreement made pursuant to
subdivision three of part B of section two hundred thirty-six of this
article entered into (a) prior to a marriage or (b) during the marriage,
but prior to the service of process in a matrimonial action or
proceeding, shall be three years.

2. The statute of limitations shall be tolled until (a) process has
been served in such matrimonial action or proceeding, or (b) the death
of one of the parties.

3. The provisions of this section shall not apply to a separation
agreement or an agreement made during the pendency of a matrimonial
action or in settlement thereof.