Federal regulators last week proposed a significant expansion in the number of non-agency mortgages that will not need a full appraisal. Currently, non-agency mortgages with loan balances of less than $250,000 don’t need an appraisal if originated by a bank. The regulators proposed increasing the threshold to $400,000. Mortgages below the appraisal threshold still require an evaluation, just not a full appraisal. Banking regulators said the proposal is an effort to reduce ...