A New Jersey foreclosure firm, which appears to be closing, has been accused of refusing to pay advertising fees for foreclosure notices since January, racking up debts in the six figures.

Mansfield Advertising is suing the Udren Law Offices in Cherry Hill, New Jersey, for more than $139,000 in unpaid legal advertising fees. Udren Law represents lenders and mortgage servicers on real estate matters in Florida, New Jersey and Pennsylvania, according to its website.