Katie and Tom are planning on having a family, and our looking to buy a house in Tallahassee, FL. Tom currently works as an assistant manager, getting paid a salary of $67,775 a year. While Katie works as a tutor at the local school part time 40 hours a month at $16/hr. They recently just bought a mini-van which they make monthly payments on of $324.76. When Tom was out of work they worked up credit card debt of $6,000, which they pay monthly payments of $125.54. After a couple weeks of searching for a home they have found a home with a taxable value of 225,000 with no applicable exemptions. Their estimated monthly mortgage payment is $1,494.74 a month. PMI and property taxes for the year account to be $4.21 dollars per thousand. Calculate their mortage debt ratio (MDR)? Do they qualify based on the MDR? The mortgage debt ratio is 24.6% and yes they would qualify based on the mortgage debt ratio (MDR) as long as they also qualify based on the total debt ratio (TDR). The mortgage debt ratio is 33.82% and no they would not qualify for the loan based on this ratio. The mortgage debt ratio is 43.97% and yes they would qualify for the loan. The mortgage debt ratio is 43.97% and no they would not qualify for the loan