A lien on the property is just like if you take a loan out. Of course property taxes are placed as liens and for example say if someone worked on the home and did not get paid for the work they could file for a judgement and the court could place a lien on the property for the settlement.
Some liens will transfer with the property others will not. Basically it really depends on what that person owed and what it was for as to whether any of the debt transfered or not.
If you like just give email me and I can get the information on the home you are interested in and let me start digging. It will take me a little while to dig up what information is available on the home.
Coldwell Banker Triad