You are at such risk, yes. Not only is it the matrimonial home but you would have to explain why you put the property in joint names if you did not intend it to be owned equally. That is not to say that you cannot argue that you should have a greater share because of who put what into the property but you will have an uphill struggle on your hands. If it was intended that the property should have been owned unequally it would have been a relatively simple thing to have had a deed of trust to that effect. It is true that such a deed of trust would carry limited weight upon divorce but at least there would have been some sort of evidence of intention. As it is you face explaining why it was put into joint names if you did not intend it to be owned equally. This could, of course, all have been planned by your wife.
