A lien will be sold against the property if there are any unpaid utility bills owed from the previous year, this may also include other municipal charges.
Who buys these liens? Usually people who are looking to invest money. The interest rate starts at 18%. However, if there is more than one person interested in the same parcel, they will start bidding down the interest rate. Once the bidders bid down to 0%, it will go into a premium starting at multiples of $100.
What happens once a lien has been sold on a property? The person who purchased the lien will receive a legal document referred to as a "tax certificate" which must be recorded with the Monmouth County Clerk. The certificate must be held for 2 years from the date of sale. After 2 years they may start to foreclose on the property. The homeowner has the right to redeem the tax sale certificate any time prior to the final judgment being filed.