How to get rental house priced right?

[Chris Clemptor]

I plan on doing my own property management for a suburb house rental 9 miles west of downtown Minneapolis.  I look at properties for rent on Craigslist and Zillow, but they seem all over the place price wise, and the few that are houses with similar bedrooms, baths and size as my own house, are often miles away.  So then I look at majority of apartments, but I don't know how much more I should be charging for a house?  Should I pay a realtor to come over and give me their opinion?