The assignment content discusses the four unities rule in regards to severance of joint tenancy, specifically focusing on unilateral severance and its effects on survivorship rights among co-owners. It highlights the difficulties in achieving secret severance without knowledge of other co-owners, which can result in hardship for surviving joint tenants. The report recommends amendments to the Land Title Act to provide order and clarity in regards to severance, notice, and registration of serving instruments. Additionally, it proposes allowing co-owners to agree on a non-severable joint tenancy with survivorship.