if Mr. Jones owns a $500,000.00 (mortgage-free) home and is contemplating marriage to Ms. Smith, he knows that if there is no pre-nuptial agreement, Ms. Smith moves into the home, and they become separated 6 years later, he will have to share his interest in the home with Ms. Smith at the time of separation. If they enter into a pre-nuptial which stipulates that upon separation, the matrimonial home is to be excluded from the Family Law Act property division process, he will not have to worry about writing her a cheque for half the value of the home at the time of separation