Negotiation strategy on two duplexes

[Spencer Funk]

I'm looking at a couple of duplexes that are right next to each other that appear to be owned by a local hard money lender company. These are priced at $155k and $165k and I am hoping that I can get a bigger discount if I buy them both, which I can as long as I get them for less than $295k. The appraiser website says that this company bought them both recently at $135k each. I am wondering if anyone has any ideas for how I should approach making an offer on both and maximizing my chances of getting a great discount. I have a realtor involved, so that may complicate things. But I was considering trying to negotiate one as low as possible and then pull out my proposal to buy both as my last negotiating card. Anyone have thoughts on this?