Making an offer on an Off-Market property

[Kim Holder]

I have found my first interested property owner from a cold call.  He wants me to give him a figure and declined to give me one as a starting point.  I have looked a comps in the area from the past 9 months and have a figure I feel comfortable with at 120/sqft.  The only knowledge of the property/condition is from public record and just driving by.  It is tenant occupied.  I plan to purchase, rehab, and live in it until I find another property to move into, then rent it. What questions should I ask, in addition to when the roof and mechanics of the house were installed? Are there any other techniques I should use?