Purchasing multifamily home with current tenants

[Ricky Dorn]

Hey BP, 

I have been looking around for multifamily properties here in Southern California with the hopes of house hacking. A common theme that I've seen in my search is properties that have been listed for a while have tenants living in them, some paying under value. 

If I were interested in a property with this situation what options do I have? Are there resources that you might be able to point me to?