Speaking from my own experience as a renter, property management companies don’t do anyone any big favors. The companies are out to make money for themselves, which is understandable, but I witnessed first hand how willing our manager was to short change actually maintaining the property in a proper way in order to maximize short-term profit. Specifically, the plumbing; it was an old property with the sort of issues you’d expect, but the property manager always chose the cheapest, quickest “fix” rather than investing any money in upgrading or improving the property.
I’m sure there are good property management companies out there, but my overall impression is they eat away at a property owner’s bottom line without providing that much benefit.