Leans on homes in NJ

[Denise Scorpiti]

Hi, my friend lives in a home that is owned outright by her mother...her brother has not paid the taxes on the home in a year and now there is a lean on the home.. How long before they can take your house in NJ? Curious about the process and also curious if anyone has paid someone's lean and bought a property that way...and how was the experience...thanks in advance.