Questions to ask the seller?

[Marco Padilla]

So I found a Triplex which is in pretty bad shape. It is for sale by owner and after searching for a few days, I was finally able to track the owner down. The property is vacant and it's in an okay neighborhood, but needs a lot of work. And this that I've only seen it from the outside. Now I have a meeting with the owner on Tuesday coming up. I was wondering if any one has any suggestions on questions I should ask the seller and or how I should approach the subject of pricing. I am new to this and am a little insecure in my abilities to negotiate. Any help/input would be greatly appreciated. Thanks