A good example is a couple buying a house who both have children from previous marriages.  Quite often they will wish their half share of the property to go to their own children but they would also like their spouse or partner to be looked after during their lifetime.  This would be a perfect case where they should own the property as tenants in common in equal shares (50/50) and deal with their half share of their property in their Will.

In a joint tennant situation, persons A and B buy real estate as joint tenants. Upon the passing of person A, surviving person B would inherit the entire asset.