I just checked MLS for houses that are actively for rent in Davenport with a minimum of 5 bedrooms and found 20 houses. The monthly rent prices for 16 of the houses range from $1,300 to $1,800. Of course, the location, condition, and amenities (community pool versus backyard pool) will all come into play.
Re: Are there many rentors?
Are you looking for short term rentors or long term (year lease)? You could contact a Property Management company. Be careful because they are selling you a service. They will say they will keep it rented, but ask for statistics or specifics.