Help understanding tax lien

[David R Duitsman]

Hi, I was looking at tax lien properties and needed clarification. I did email the treasurer and am waiting for a reply. But figured I'd ask here as well. The amount is in thousands right? Yearly tax amount was 700ish so this is ten years of back taxes? The biggest amount is for the school district, so anyone have experience in negotiating that amount down?  Thank you!