Usual rent standard: gross income / rent > 3
Mortgage standard: gross income / (mortgage payment + other debt) >= 2.32
Your situation:
gross income / rent = 2.22 ,
if he has debt, then (gross income)/ (rent + debt) < gross income / rent = 2.22
Therefore:
(gross income)/(rent + debt) < 2.22.
Unqualified.