Find out what your lender requires, both front end, and loaded debt.
What I mean by that is, your total culmulative debt is one thing.
Your house payment PTI, should be another thing.
Here is an example:
You have a $6000 per month income.
You have $1200 per month, in car payments, credit cards, etc. Not bad.
Your debt to income ratio is 20%
Acceptable, by most lender's standards.
Now here is where it get's tricky.
Add your $1200 per month existing debt payments, to your new mortgage payment of $2200. Now you have $3400 going out. Your are now at almost 57% DTI.
This is fine, until you consider your income tax, about another $1200 per month, your electricity bill, about another $100 per month, and your phone, cable bills, etc, of total $300 per month.
So you have your $1200 in existing debts.
Your $2200 mortgage payment
Your $1200 in taxes
Your $300 in electric, cable, garbage, etc.
Factor in $800 for food, clothes, entertainment, and gas.
You've spent $5700.
Wonderful! You have managed to save $300
But...you forgot, your medical and dental insurance...another $200 per month, if you have a family.
Get your total PTI, including mortgage under 40%, if you can. Otherwise, do not buy a house.