First of all, we (and presumably other MI's) only give delegated authority to lenders that they have vetted pretty extensively and whose default rates are acceptable (we look at their financial and loan performance records very carefully). Secondly, we QA a huge number of loans each and every month, and any lender whose QA finding rates and/or default rates exceed our tolerances have their delegaed authoirty removed, or in extreme cases, have their ability to even submit non-delegated loans for insurance with as we don't insure loans for any lender who is not on our approves list and we have and will continue to remove lenders from our approved list. Additionally, the loan file on any claim that is submitted is audited and if the loan was approved by a lender using their delegated authority and the loan did not meet our underwriting requirements, we have the ability to rescind coverage and not pay the claim.