I want to avoid future fights about the children. Can I do that with a marriage contract or cohabitation agreement?
You can agree to certain aspects of decision making, such as who will make decisions regarding the children’s education or moral training. This can be important for someone who feels strongly about a certain type of private school, or to avoid disagreements about the religious upbrining of the children. However, you cannot use these Agreements to determine custody and access rights in advance of a separation. You may discuss child support obligations, but a court in the future may disregard any provision that is unreasonable, having regard to the government’s child support guidelines.