Best to get pre-approved first so you know exactly what you qualify for now not later. Rates are at an all-time low so my advice is to buy now if you are able not later.
Best of luck to you,
Rob Hughes-Long and Foster-RE INC.
Different lenders have different criteria; some look at your Debt to Income Ratio.
You need to look at more than one Lender.
I couldn't guess what your chances are; not enough information, (don't give us any personal info over any website; share it with a Lender, face to face)
If you do not already have your Certificate, go into your local VA office and they will help you; a lot.
And, thanks for serving.
Good luck and may God bless