 In the case of the individual, where the lender attempts to predict whether the individual can pay each month the loan payment that would occur once the person moves into the house, the lender would be primarily looking at the amount of income the individual receives.In the case of the business, a similar analysis would occur.In the case of an investor building rental property, a special appraisal would be ordered which would attempt to predict what the rents will be and whether they will be enough to pay back the loan, plus all expenses and still give the renter a certain minimum amount of income.