"labour tenant"

means a person—

(a) who is residing or has the right to reside on a farm;
(b) who has or has had the right to use cropping or grazing land on the farm, referred to in paragraph (a), or another farm of the owner, and in consideration of such right provides or has provided labour to the owner or lessee; and
(c) whose parent or grandparent resided or resides on a farm and had the use of cropping or grazing land on such farm or another farm of the owner, and in consideration of such right provided or provides labour to the owner or lessee of such or such other farm, including a person who has been appointed a successor to a labour tenant in accordance with the provisions of section 3(4) and (5), but excluding a farmworker;