It has just occurred to me that I intended to include a further bit in both of my answers, but forgot. Must be the heat! I meant to add that once the tenancy in common is established (in any proportion 30/70, 50/50, 60/40 etc) any member of the tenancy in common can apply to a court saying that the members of the tenancy in common cannot agree upon how the property should be managed and asking for an Order that the property be sold and the proceeds divided accordingly. These Orders are never refused in my experience. If the relationship is hopeless, then it is best to do this quickly (not waiting for divorce) because people disappear and trying to get an Order to sell a property when one part owner cannot be found is a very expensive long drawn out process not guaranteed to succeed.