Who can purchase tax liens in New York City

[Phil M.]

Okay, so I've heard that in New York City tax liens may not be sold to the general public. But now, I have an LLC, so I was wondering if I can purchase them now.

I recently read this: "The City of New York only sells liens to authorized private collection agencies, not to the general public."

In which case, is my LLC eligble? How do I become an authorized collection agency?