Huge bankruptcies, such as those filed by Lehman, General Growth Properties (owner of the Steeplegate Mall in Concord) and Smurfit Stone Container Corp. accounted for many of the transfers last month.Certainty and liquidityThe FairPoint filing may be big news to northern New England. After all, the company bought Verizon's landlines in March 2008, and after a terrible transition filed for Chapter 11 reorganization a year and a half later, a case involving hundreds of creditors, regulators in three states, Wall Street bondholders and some major banks. But it is just a middle-of-the-road filing for claims-buyers like Creditor Liquidity, a company based in Armonk, N.Y., that has thus far bought up 36 FairPoint claims ? more than any other company ? for $500,000."We're busy," said Bob Tannor, a principal of the company, which was formed at the beginning of 2009. "The sheer volume is amazing."