...) ‘family’, in relation to a landlord or tenant of a building, means, his or her—(i) spouse,(ii) male lineal descendants...prescribes the conditions under which deemed vacancy shall occur. The relevant part thereof is as follows:“12. Deemed vacancy of building in certain cases.— (1) A landlord or...building or part which a landlord or tenant has ceased to occupy within the meaning of sub-section (1), or sub-section (2), or sub-section (3), sub-section (3-A) or sub-section (3-B), shall, for the...