A person is qualified to succeed the contract-holder if that person—
But if the contract-holder was a reserve successor in relation to the occupation contract, no person is qualified to succeed him or her.
A person is excluded if he or she has not reached the age of 18 at the time of the contract-holder's death.
A person is excluded if at any time in the period of 12 months ending with the contract-holder's death he or she occupied the dwelling or part of it under a sub-occupation contract.
A person is not excluded by subsection (4) if—