The tenant is the occupier (either as owner or tenant) of agricultural land which—

1. (a)

   is a two-man unit;

2. (b)

   is distinct from the holding and from any agricultural unit of which the holding forms part; and

3. (c)

   has been occupied by him since before the death of the person from whom he acquired right to the lease of the holding,

and the notice specifies the agricultural land.