29(3)Upon the registration of an assignment of a mortgage, lease or debenture, the interest of the assignor in the mortgage, lease or debenture with all rights, powers and privileges thereto appertaining passes to the assignee, and the assignee is then subject to the same limitations and obligations, to the extent of the interest assigned, as if named mortgagee, lessee or lender in the original mortgage, lease or debenture.