Seller Financing and two agents

[Kyle Koehn]

I am new at investing and have not worked with an agent much so not sure what is considered normal practice. 

Mistake #1 I wanted information on the listing that I saw on Zillow and so I just submitted a question rather than contacting the listing agent directly. 

Another agent has contacted me and has chased down a few answers to a few questions that I had and now is eager to take me to go see the property. 

I have gotten the information that this is an older seller that is down sizing her portfolio. In my mind, the prime individual to have a mutually beneficial seller financing agreement with. (I have access to conventional financing but would like to pursue this first)

If she would be open to a minimal down payment, how do we slice the pie into enough pieces to go around? Do I have any obligation to the agent that has helped me already? Should I just be open with him and tell him the situation and tell him I will go directly to the sellers agent at this time? Ask his permission? Any way for everyone to get a good deal? I guess I'm not even sure with an average commission rate is. I just don't want to lead "my" agent on if it is in neither his nor my best interest to continue the relationship.