Updated almost 5 years ago on .

What should I ask, look for, and keep in mind?
I'll be meeting with a fellow investor about a Duplex (possibly triplex) they are selling within the next week or two. I have met the person at their personal residence and had a brief discussion with them about it, but nothing formal (my dad was doing work for them and I was just dropping off tools for him that he needed). I have come up with some questions to ask, but I want to make sure I'm not missing anything major.
What things should I want to know about the property?
What should I keep in mind while I'm looking into the property?
What information should I be asking them for?
What questions would you be asking?