So, you get one: Like marriage contracts, concubine agreements can also be established by a lawyer. Websites, books and do-it-yourself kits are also available. In British Columbia, prenups are also called marriage or concubine agreements. Since the amendment of the Family Law Act in 2013, common law relationships are considered equivalent to marriage. By law, a common law relationship is if you live together for two years or more in a conjugal relationship. Prenups or marriage contracts are like insurance. If there is an accident like a breakup or divorce, they will come to save you and your spouse. You may never need insurance if you don`t have an accident. Lorne MacLean, QC knows that responding to the problem of a marriage contract with a loved one can seem daunting.