I am hearing different things about Federal Tax Lien ( FTL ) on the property. They can only go away if you wait 120 days. Meaning, let's say there is FTL on 1st April and it can only go away if we wait till 1st August. Within those 120 days, can i buy it..  and wait for 120 days to reach and sell it. Am i understanding correct ? Can you please share your experience with  FTL ?