your salary level is $90,000 then your mortgage is decide according to your terms and size.
your bank will decide the interest of the payment.most banks interest is among 28% and 33%.according to your state it will be depend ruffly you can mortgage $2100.
Let`s assume you will save a little more to get you up to 20%.
This means you need to save $98000 or $78000 more.
With this down payment you will still need to borrow $412000.
If you amortize over 25 years and assume an interest rate of 4.75% (probably a little low)
your monthly mortgage payment is going to be$2,337.92.
Making $140,000 means you are making about $11,666 a month.
This means about 20% of your pre tax income will go just to the mortgage.