Working with an agent when flipping properties

[John Geldert]

I'm currently looking for properties out of state and have 3 different agents sending me listings,  and some comps to properties I may be interested in, they are mostly forclosures and plenty of duplicates on each list. I have visited properties with 2 out of the 3 agents so far, I have not signed any contracts with the agents as of yet(not sure if I will be asked to). 

    My question is, am I obligated to use just one agent? They are all sending me listings and trying to get me comps. I feel a little guilty going back and forth between agents (almost like I'm cheating). But I also know that I Need to utilize all the resources I can, and having three different opinions and skill sets is definitely very beneficial to me. How do I proceed? I'd like to hear from both investors and real estate agents. Am I over thinking this, is this just part of the due diligence, is it ethical??? Any clarity on this topic is much appreciated.