Property Liens

[Carlee517]

I am trying to sell my house that I bought from the father of my children for $500 that he sold to me so my daughters and I would have a home of our own. Him and I are not together anymore and were never married, and now that I am going to close on the property the local title company is telling me that he had liens on the property and I am lieable to pay for them at closing time. Although, I never had any problems when I went to have the deed change over into my name a year ago. So my question is, am I really lieable for his bad debt at closing?