So we're thinking of listing our house in the spring of next year. How far in advance should we contact a realtor? Should we interview multiple realtors? What should we ask them? I was kind of hoping a realtor could come to our home, tell us what he or she thinks we should list it for and maybe tell us what we need to do to get it ready to sell. We had a realtor when we bought the home but he wasn't very impressive so I'd prefer to use someone new.

Also, this is probably a dumb question, but how does a realtor make a commission? Should we be concerned about one realtor "costing" more than another one?