Detailed Answer
a. $75,000 ÷ 12 = $6,250 monthly income.
$6,250 × .29 = $1812.50 front end
qualifier.
$6,250 × .33 = 2062.50 – $450 debt =
$1612.50 back end qualifier.
The maximum PITI (Principal, Interest,
Taxes, and Insurance) is the lower of these
two qualifiers.