[UT] Choose most qualified applicant instead of first applicant

[Account Closed]

I've been brushing up on Fair Housing and I'm not sure about this distinction. I know the protected classes in my state and locality.

Say I have an open house for a few hours and when I'm done I have X online applications. Am I required to select the first applicant who meets my requirements (income + credit score) or can I select the applicant with the largest income / credit score?

My belief is that since size of income is not a protected class, I am allowed to select (discriminate) based on this information.