Having a property management company with rental RE

[Kia Afshar]

I have noticed that a significant number of people into rental real estate also one their own property management companies. My wife and I have a few properties that we currently manage. Is there an advantage to making our small management scenario a separate company? It seems that the overlap of people who invest in real estate and also have a property management company is high to just be coincidental. Curious if there is something that I am missing as far as the advantage of this. Thanks.