Fannie Mae and Freddie Mac have dropped Steven J. Baum P.C., New York’s largest foreclosure law firm, from its network of firms that process the foreclosures of mortgages owned by the government-sponsored enterprises. The servicers of Freddie Mac and Fannie Mae-owned mortgages can no longer refer foreclosure cases to the Baum firm, though the firm will retain the cases already referred to it. Freddie Mac’s bar on new referrals also includes bankruptcies and was announced on Nov. 10. Fannie Mae’s decision to bar new referrals was confirmed yesterday. Spokesmen for Fannie Mae and Freddie Mac would not comment on the reasons behind the decisions.

Steven J. Baum called the decisions of Fannie Mae and Freddie Mac “unfortunate.” “It seemed to be based more on politics than performance,” he said in an e-mailed statement, declining to elaborate.