How to find great PM company?

[AP Berry]

Good Afternoon All:

We are investing in multi-family properties throughout the southeast US. I am finding that we are spending too much time managing our asset rather than doing what we do best...Invest! I have decided that now is the time to find a great property management company to manage our property.

Is there anyone out there who has any suggestions on the type of questions we should ask to qualify these companies?