“Under federal law, PrivateMI on most loans originated on or after July 29, 1999, will terminate automatically once the mortgage has amortized to 78 percent of the original value of the house. The borrower must be current on all mortgage payments. The lender must tell the borrower at closing when the mortgage will hit that 78 percent mark. Nine out of ten borrowers cancel their PrivateMI within 60 months.”