The deposit must earn interest at the rate of the bank account where it is held, payable to the tenant. Deductions need itemized proof. Possession only comes back through the court: no lockouts, no changing the locks (PIE).
The rules, plain
1 month
A month-to-month lease needs one full calendar month's written notice (RHA s5(5)).
Due day
Notice on or before the rent due day ends the lease at the end of that month. After the due day, at the end of the following month (Luanga v Perthpark).
7 / 14 / 21
Deposit refund: 7 days if nothing is owed, 14 days with itemized proof if deductions apply, 21 days if the tenant skipped the exit inspection.
The deposit must earn interest at the rate of the bank account where it is held, payable to the tenant. Deductions need itemized proof. No lockouts, no changing the locks: possession only comes back through the court (PIE).