(1)  If a joint tenant ceases to occupy residential premises, the joint tenant is not liable for any loss caused by an act or omission of any other tenant remaining in occupancy of those premises if that act or omission occurred after the joint tenant ceased to occupy those premises.

(2)  For the purposes of subsection (1) , the onus of proving when the act or omission causing the loss occurred is on the joint tenant who ceased to occupy the premises.