Guide updates include Home Possible® mortgages, Income – AIM for self-employed, Income – IRS Form 4506-T, Age of documentation for mortgages secured by properties in Eligible Disaster Areas, Uniform Loan Delivery Dataset, Calculation of monthly housing expense – real estate taxes, Environmental hazard disclosure to borrower, Accounts held in the name of a living trust, Signed letters or emails from the borrower, Tri-party agreement form updates, and an Updated relocation mortgage definition.