After the declaration is recorded, a description of a unit which sets forth the name of the condominium, the recording data for the declaration, the county or counties in which the condominium is located and the identifying number of the unit is a sufficient legal description of that unit and its common element interest even if the common element interest is not described or referred to therein. Deeds, leases and mortgages of units shall be recorded in the same records as are maintained by the recorder for the recording of like instruments and shall be indexed by the recorder in the same manner as like instruments are indexed.