A concubine agreement that will cover all the important topics will offer you both the greatest possible protection. Whether you agree to do or share something or you agree not to do or share something, you must say so in your concubine agreement. „Be confident that this is reasonable and start by emphasizing how excited you are to move together. I have been living in Ontario with my common law partner for 14 years in a house he bought 7 years earlier. It was very nice to add me to the title and mortgage, three years after I moved in. We each pay 50% of the mortgage, property tax, insurance, incidental costs. He also deposited in the house on estates, and for which I accepted absolutely, it would be taken into account if we separate. We always have a small mortgage on the house. .