The Appraisal Foundation is the source of appraisal standard and appraiser qualifications.
This is the home of the National Registry of licensed and certified appraisers.
“National Association of Independent Fee Appraisers is an association of professional real estate appraisers committed to the support of its members, for a service of trust and integrity, that benefits the members, the profession and the general public.”
US department of Housing and Urban Development provides information for appraisers.
FEMA is a Flood map generator.
FHFA regulates Fannie Mae, Freddie Mac and the 12 Federal Home Loan Banks.
FFIEC Geocoding System provides the Census Tract number or Block Number Area number for the address that you enter.