1.Joint tenancy
The owner of property is also known as either joint tenants or joint proprietors, who jointly own equal and undivided right in disposing the property.
2.Tenants in common
The parties own specific proportion of the whole ownership interest. They are separately entitled to their proportion as sole proprietors, in which they only have right to dispose their proportion of property ownership interest.
One of the most noticeable differences between those 2 are the right of survivorship. That is, in the event of death of one of parties, survivors in joint tenant keep owning the property as a whole, and interest of the deceased will be passed according to his/her will or rules of the intestate succession.