I file as head of household. I'll just be upfront. I make right at 100k per year and the house is only $147,000. I do have about $57,000 in student loans and $12,000 left to pay on my car note. I have no credit card or other debts.
Ok, so $100K/12 months is $8333.33/month
41% (and yes, I've seen approvals up to 45%) of that is $3416.67
$147K @ 5% on a 30 year loan is $751.55, figure another
$200/month for escrow=$951.55, then add in the 1% origonation for FHA and the monthly MI (Unless you go 15 years under 90% LTV) plus title fees and legal fees, etc. Figure the total loan is going to be around $155K
That leaves a little over $1900 cushion every month for student loans and car payments.
That's on an FHA loan, FHA can approve up to 97% if you have liquid assets that helps (IRA, 401K, savings)
Who's telling you 5%?