(a) Is a legal representative of the owner;
(b) Is entitled to be shown as owner of land on the next assessment roll;
(c) Is a purchaser of land under a written agreement of sale; or
(d) Is authorized to sign for and on behalf of any public agency owning land.
(2) If a person signing a petition as a landowner appears as owner on the last equalized assessment roll but is shown thereon as a partner, tenant in common or tenant by the entirety, the signature of the person signing shall be counted as if all other owners, as shown on the roll for the same parcel of land, had signed. [1971 c.727 §19; 1999 c.318 §48]