Going after a home that has a tax lien already purchashed

[Jim Montville]

I found a home that has been vacant for a few years due to the owner passing away.After some research I found the property has a tax lien that was bought by a company who buys a lot of them in my area.I was wondering if anyone has tried to purchase a home in this situation.What do these companies tend to do with these liens?I'm very new to this so thanks in advance for the help.