I purchased my family home with my first husband in 1999. We divorced in 2013 and completed a binding financial agreement in 2015. At that time, my current husband and I took out a mortgage together to buy out my first husband of the property. At that time, I had 60% equity of the property and I am the only one on the property title. I would like to add my current husband to the title as a tenant in common. I want it to acknowledge that I bought considerable equity into the purchase. Is this possible? In the event of a divorce, will that agreement be followed?