Asking a seller for seller financing

[Blake Burnett]

I've found a 4plex than I am interested in. I spoke with the realtor and was informed that the property was inherited and from the looks of the place and the rent being under market, the owner doesn't seem too present. I wanted to present the idea of owner financing, so he could keep some income and at the same time I couldn't buy the property without a traditional loan. How do I go about reaching the seller to ask about seller financing?  I'm assuming the realtor is not the one to go to though.