Say there was a $20 increase per week = $1040 for the year. If the letting fees were around $1000 would it be worth doing?
say normal rent is $480 and this property is achieving $500 per week due to sourcing new tenants.
(forget GST for now as it complicates things and I'm just setting an example).
I'm reading that as a potential $40 gain for the year.
I'm not sure if you are being serious or not.