97.1. A supply by way of sale of a building, or that part of a building, in which one or more residential units are located, or an interest in such a building or part, is exempt where(1) both immediately before and immediately after the earlier of the time ownership of the building, part or interest is transferred to the recipient of the supply (in this section referred to as the “purchaser”) and the time possession thereof is transferred to the purchaser under the agreement for the supply, the building or part forms part of a residential complex; and
(2) immediately after the earlier of the time ownership of the building, part or interest is transferred to the purchaser and the time possession thereof is transferred to the purchaser under the agreement for the supply, the purchaser is a recipient described in subparagraph a of subparagraph 1 of the first paragraph of section 100 of an exempt supply, described by subparagraph 1 of the first paragraph of that section, of the land included in the complex.