$15000 OBO, with a $2500 tax lien

[Takeya Hill]

Hello.  I found a fsbo 3bdrm 2-story house near temple university.  The seller is asking $15000 OBO and the house based on the assessment site is worth $35000.  There is a tax lien of $2500 on the property.  I can see a picture of the front and it shows the door boarded up.  The seller states that there are no electric or plumbing issues.

My question is, could this be worth pursuing or a complete no-go in your professional opinion?

Thanks