The document discusses real estate finance unit 12 on underwriting. It explains that underwriters look at a borrower's capacity, character, and collateral when evaluating a loan. Underwriting guidelines include loan-to-value ratios, down payment guidelines, and debt-to-income ratios. Underwriters must verify a borrower's ability to repay by considering income, employment, debts, credit history, and other factors. They also appraise the property being used as collateral for the loan.