Actually the question is constructed incorrectly. Score will not give you the amount, free available income will.
So the question is: How much available income do i need to have left after monthly expences to qualify for a 175K loan?, and then a second question: At what interest rate will my loan be if my credit score is____?
Loans are now available for CScores as low as 580 if you have the available income and not mind paying slighly higher rates...which are still really low this year.
You need to consult a local lender and ask those 2 questions.
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