The biggest thing is going to be the property tax of where you are going to move. That is figured into your backend DTI so it can effect the amount you can borrow by a lot. The amount you have for a down payment, and the type of loan will also play a huge role.
As an example, our income and debt is relatively similar but my student loans are about double. So mortgage lenders figure the debt as 1% monthly payment so for you it would be $250.
I'm currently in process of buying a house in Georgia at 3.5% down and I easily qualified for 300k. According to what I calculated I can probably stretch it out to about 320-330k, but I personally would not feel comfortable with it.
With that being said in Texas I can only afford about 245k, and it would be uncomfortable at that. So the property taxes can really play a big role.
But to answer your question you can just google "How much mortgage can I afford calculator" and that will give quite a few results.
Ideally you will need to know these things:
How much you can put down
Property taxes for the area you will move
PMI if less than 20% down payment
HOA fees if any
And the $250 monthly payment for student loans whether deferred or not.
What is your payment on the student loan, how much are you putting down? If you do conventional they will use the actual payment amount, if you go FHA it is 1% of the balance. You will want to get them out of defferel before applying, and it would help I think to do that sooner than later to show you are comfortable with that payment.
If you can get insured and property taxes aren't a killer, a $240k loan would seem reasonable. There is a 28% rule that some people use where your housing costs should not be more than 28% of your gross monthly income, but at the end of the day you have to do what is comfortable with you. If half your income is going to your house and student loans per month, will you be happy?
