In a not unexpected development, PMI Mortgage Insurance has become the second mortgage insurer in less than a month to be suspended by Fannie Mae and Freddie Mac as an approved GSE mortgage insurer after the company announced state regulators placed PMI under a supervisory order.Mortgages insured by PMI Mortgage Insurance or its affiliates PMI Mortgage Insurance Co. (MIC) and PMI Insurance Co. (PIC) with notes before May 19, 2011, or after Sept. 16, 2011, will no longer be purchased or securitized by Fannie or Freddie, the GSEs announced separately last week.