Conventional financing for duplexes

[Paul Weller]

I am looking at a duplex listed in the eastside of the Seattle area.  The mortgage broker that I have been talking to stated that I since it is a duplex I wouldn't be able to get financing unless I had 25% down and I think this was through conventional.  I might be able to get 10% but not the whole 25%.  What are my options?  Can seller financing cover a portion of the 25%?  Other programs?

Thanks!