Buy Tax delinquent property NYC

[Steve Orlov]

Hello BP community,

My partner and I are looking to market to home owners in NYC with delinquent taxes.

Here is my question: 

Once the property tax lien was sold at the tax lien auction to tax lien servicing company like TCM, can I still buy the property from the home owner? I.E. does it make sense to continue marketing to my tax lien list after the auction? or I will need to deal with TCM?

Any feedback on this topic is greatly appreciated, I am also using other sources to research this topic, so if I find out anything, I will be sure to share as well.