Yes % of anual rent. Usually 7-10% plus all the fees so 10-20% overall. Dependant on pm and amount of properties.
Maintenance is preference maybe around the 1% of value mark or Can just take it as it comes but can sometimes be costly ie hot water system 3k aircon 2k etc
But things like...
See above plus
Loan interest
Expected rent
Insurance around $1000
Council rates $1200-1500 or more :(
Water rates $1000-1500
A percentage for maintanence
Land tax if applicable
Accountant fees $100- $1500 depending
