Rights of a sub-mortgagee

With registration of a mortgage of a mortgage the rights of the head mortgagee are assigned to the sub-mortgagee. 

Any dealing with the head mortgage must be made by the sub-mortgagee or with the sub-mortgagee's consent. See Baalman And Wells, Land Titles Office Practice, Lawbook Co. 2001 [375.100]; s52A Real Property Act 1900.