Buying 2 houses at once from same owner (but at different price)

[Andrew Savage]

Hi all.

I'm in a situation where an owner is willing to part with 2 side by side duplexes for $200k combined ($100k each).

My question is if there are any advantages (and disadvantages) to saying to owner that I want to buy Duplex 1 at $50k and Duplex 2 at $150k?

My thinking is Duplex 1 would provide me an ability to refinance right away and get a heap back on my down payment, and that would be great, but am I missing something here? 

Are there negatives in my going with this approach?