On Feb. 4, 2015, Fannie Mae released Lender Letter 2015-02 to provide clarifications and additional information about Collateral Underwriter, Appraiser Quality Monitoring (AQM) and updates to the Property Eligibility and Appraisal Requirements section of the Selling Guide.
Fannie Mae's CU is a tool that lenders can use to assign a risk score to appraisals and identify aspects of the appraisal that may require further attention.
Fannie Mae will make Collateral Underwriter (CU), an appraisal risk-assessment tool, available to lenders in early 2015.
In recent weeks, there have been a number of news articles involving appraisers, including some that have unfairly accused appraisers of inflating home values.
The Historical Development of the Appraiser Regulatory System, from The Appraisal Foundation.