Are you interested because you want to purchase? Are you interested because you want to rent? What is your motivation - and what will you do with the information once you get it?
The reason I'm asking this question is simple - if you want to purchase or rent - I recommend contacting an agent to represent you.
For one; this gives you credibility with the owner, and two, the agent will be able to assess the actual market value of the home.
In other words - you aren't flying blind.
Otherwise; you could kill the deal before you step up to the gate, and/or worse yet, you could end up paying way more than market value.
Lots of luck and hope you give us an update! I love the start to finish information.
You may also be able to do it yourself by going to your county's tax assessor website. In Chicago, there is a section on the Cook County assessor's website to do a PIN search by address. Once you get the PIN, you can input it to pull the tax records.
Perhaps your county has the same feature?
Employ a top producing agent, they will find the price from the Tax records run Comparative Market Analysis for re-sale and point you in the right direction for re-hab costs. You need to know all these if you are to make a good purchase.