Tax lien newbie, looking to buy a tax certificate

[Allen Berrebbi]

I found out that a property in a neighborhood I am very interested in, and a building I am also very interested in, has a tax lien on it. I was curious about the process. I found out who owns the certificate (a bank in Texas) and they want me to make an offer but as this is my first time, not sure what to offer. It's not a huge amount so it seems like the current owner could pay it back. In an ideal world I'd get it in a tax sale. Any advice or anyone in Tampa I could talk to about this?