How many houses do you need before hiring a property management company?
Don't wait until you are giving bad service to your tenant before hiring a property manager. We usually say we are hiring a property manager, but a "property manager" might be a lot different than a property management company. If you hire a realtor who offers property management services on the side, you likely aren't getting the whole benefit. https://www.youtube.com/watch?v=RDlrV2gUp7k&t=155s